技术领域technical field
本发明涉及活性炭法烟气净化装置，该装置属于一种适用于大气污染治理的活性炭法烟气净化装置，尤其用于烧结烟气的净化的高效脱硝喷氨装置，涉及环境保护领域。The invention relates to an activated carbon method flue gas purification device, which belongs to an activated carbon method flue gas purification device suitable for air pollution control, especially an efficient denitrification ammonia injection device for purification of sintering flue gas, and relates to the field of environmental protection.
背景技术Background technique
对于工业烟气、尤其钢铁工业的烧结机烟气而言，采用包括活性炭吸附塔和解析塔的脱硫、脱硝装置和工艺是比较理想的。在包括活性炭吸附塔和解析塔(或再生塔)的脱硫、脱硝装置中，活性炭吸附塔用于从烧结烟气或废气(尤其钢铁工业的烧结机的烧结烟气)吸附包括硫氧化物、氮氧化物和二噁英在内的污染物，而解析塔用于活性炭的热再生。For industrial flue gas, especially sintering machine flue gas in the iron and steel industry, it is ideal to use desulfurization and denitrification devices and processes including activated carbon adsorption towers and desorption towers. In the desulfurization and denitrification devices including activated carbon adsorption tower and desorption tower (or regeneration tower), the activated carbon adsorption tower is used for adsorption of sulfur oxides, nitrogen, and Pollutants including oxides and dioxins, while the desorption tower is used for thermal regeneration of activated carbon.
活性炭法脱硫具有脱硫率高、可同时实现脱硝、脱二噁英、除尘、不产生废水废渣等优点，是极有前景的烟气净化方法。活性炭可以在高温下再生，在温度高于350℃时，吸附在活性炭上的硫氧化物、氮氧化物、二噁英等污染物发生快速解析或分解(二氧化硫被解析，氮氧化物和二噁英被分解)。并且随着温度的升高，活性炭的再生速度进一步加快，再生时间缩短，优选的是一般控制解析塔中活性炭再生温度约等于430℃，因此，理想的解析温度(或再生温度)是例如在390-450℃范围、更优选在400-440℃范围。Activated carbon desulfurization has the advantages of high desulfurization rate, simultaneous denitrification, dioxin removal, dust removal, and no waste water and residue generation. It is a very promising flue gas purification method. Activated carbon can be regenerated at high temperature. When the temperature is higher than 350°C, pollutants such as sulfur oxides, nitrogen oxides, and dioxins adsorbed on the activated carbon will be quickly decomposed or decomposed (sulfur dioxide is decomposed, nitrogen oxides and dioxins English is decomposed). And as the temperature increases, the regeneration speed of activated carbon is further accelerated, and the regeneration time is shortened. It is preferable to generally control the regeneration temperature of activated carbon in the desorption tower to be approximately equal to 430 ° C. Therefore, the ideal desorption temperature (or regeneration temperature) is, for example, at 390 In the range of -450°C, more preferably in the range of 400-440°C.
传统的活性炭脱硫工艺如图1中所示。烟气由增压风机引入吸附塔，在入塔口喷入氨气和空气的混合气体，以提高NOX的脱除效率，净化后的烟气进入烧结主烟囱排放。活性炭由塔顶加入到吸附塔中，并在重力和塔底出料装置的作用下向下移动。解析塔出来的活性炭由2#活性炭输送机输送至吸附塔，吸附塔吸附污染物饱和后的活性炭由底部排出，排出的活性炭由1#活性炭输送机输送至解析塔，进行活性炭再生。The traditional activated carbon desulfurization process is shown in Figure 1. The flue gas is introduced into the adsorption tower by the booster fan, and the mixed gas of ammonia and air is sprayed into the tower inlet to improve the removal efficiency of NOX , and the purified flue gas enters the sintering main chimney for discharge. Activated carbon is added into the adsorption tower from the top of the tower, and moves downward under the action of gravity and the discharge device at the bottom of the tower. The activated carbon from the desorption tower is transported to the adsorption tower by the 2# activated carbon conveyor, and the activated carbon saturated with adsorbed pollutants in the adsorption tower is discharged from the bottom, and the discharged activated carbon is transported to the desorption tower by the 1# activated carbon conveyor for regeneration of activated carbon.
解析塔的作用是将活性炭吸附的SO2释放出来，同时在400℃以上的温度和一定的停留时间下，二噁英可分解80％以上，活性炭经冷却、筛分后重新再利用。释放出来的SO2可制硫酸等，解析后的活性炭经传送装置送往吸附塔重新用来吸附SO2和NOX等。The role of the desorption tower is to release theSO2 adsorbed by the activated carbon. At the same time, at a temperature above 400°C and a certain residence time, dioxins can be decomposed by more than 80%. The activated carbon can be reused after cooling and screening. The released SO2 can be used to make sulfuric acid, etc., and the activated carbon after the analysis is sent to the adsorption tower through the conveying device for reuse to adsorb SO2 and NOX.
在吸附塔与解析塔中NOX与氨发生SCR、SNCR等反应，从而去除NOX。粉尘在通过吸附塔时被活性炭吸附，在解析塔底端的振动筛被分离，筛下的为活性炭粉末送去灰仓。In the adsorption tower and the desorption tower, NOX reacts with ammonia such as SCR and SNCR, thereby removing NOX . The dust is adsorbed by the activated carbon when it passes through the adsorption tower, and the vibrating screen at the bottom of the analysis tower is separated, and the activated carbon powder under the screen is sent to the ash bin.
目前的活性炭法烟气净化工艺一般采用烟气入口直接喷入氨气，为了增加脱硝率，一般是增加烟气入口喷氨量，但同时导致出口氨逃逸更严重。The current activated carbon flue gas purification process generally uses the flue gas inlet to inject ammonia directly. In order to increase the denitrification rate, the amount of ammonia sprayed at the flue gas inlet is generally increased, but at the same time, the ammonia escape at the outlet is more serious.
另外，粉尘在通过吸附塔时被活性炭吸附，在解析塔底端的振动筛被分离，筛下的为活性炭粉末送去灰仓，留在筛网上部的视为合格活性炭循环利用。目前常用的筛网形式为方孔，其边长a根据筛分要求来定，一般为1.2mm左右。然而，对于类似尺寸为药片状的活性炭，使用这种筛网进行筛分，也将视为合格品。药片状活性炭耐磨耐压强度均很低，进入烟气净化系统后很容易成为碎片，一方面造成烟气净化系统由于活性炭床层由于粉末多导致阻力大，从而增加了系统运行费用；另一方面也增加了活性炭高温燃烧风险，同时出口烟气中粉尘主要由原始烟气中携带的部分细颗粒物和烟气经过活性炭床层时新夹带的活性炭炭粉组成，活性炭床层粉末多也会导致烟气出口粉尘增加，影响周边环境，造成大气污染。In addition, the dust is adsorbed by activated carbon when it passes through the adsorption tower, and the vibrating screen at the bottom of the analysis tower is separated. The activated carbon powder under the screen is sent to the ash bin, and the activated carbon left on the upper part of the screen is regarded as qualified activated carbon for recycling. At present, the commonly used screen form is square hole, and its side length a is determined according to the screening requirements, generally about 1.2mm. However, for similar dimensions as Tablet-shaped activated carbon, which is sieved using this sieve, will also be regarded as a qualified product. The wear-resistant and compressive strength of tablet-shaped activated carbon is very low, and it is easy to become fragments after entering the flue gas purification system. On the one hand, the flue gas purification system has a large resistance due to the large amount of powder in the activated carbon bed, which increases the operating cost of the system; On the one hand, it also increases the risk of high-temperature combustion of activated carbon. At the same time, the dust in the outlet flue gas is mainly composed of some fine particles carried in the original flue gas and the newly entrained activated carbon carbon powder when the flue gas passes through the activated carbon bed. As a result, the dust at the flue gas outlet increases, which affects the surrounding environment and causes air pollution.
另外，现有技术的活性炭排料装置包括圆辊给料机和给料旋转阀，如图8所示。In addition, the activated carbon discharge device in the prior art includes a round roller feeder and a feed rotary valve, as shown in FIG. 8 .
首先，对于圆辊给料机而言，在其工作过程中，活性炭依靠重力的作用在圆辊给料机的控制下往下移动，圆辊给料机不同的转速决定活性炭的移动速度，圆辊给料机排出的活性炭进入旋转给料阀卸料后进入输送设备内循环利用，旋转给料阀的主要作用是在排料的同时保持吸附塔的密封，使吸附塔内的有害气体不外泄到空气中。First of all, for the round roller feeder, during its working process, the activated carbon moves down under the control of the round roller feeder relying on gravity, and the different speeds of the round roller feeder determine the moving speed of the activated carbon. The activated carbon discharged from the roller feeder enters the rotary feeding valve for discharge and then enters the conveying equipment for recycling. The main function of the rotary feeding valve is to keep the adsorption tower sealed while discharging the material, so that the harmful gas in the adsorption tower does not escape. vent into the air.
由于烟气中含有一定的水蒸气及粉尘，活性炭在吸附过程中会产生少量粘结现象，形成块状物堵塞下料口，如图9所示。下料口如果堵塞严重，活性炭无法连续移动，导致活性炭吸附饱和而失去净化效果，甚至由于活性炭蓄热导致活性炭床层高温，存在较大的安全隐患。目前处理的方法为系统停机后人工清除块状物。另外，圆辊给料机在生产过程中故障时有发生，比如：烟气压力变化时的漏料情况、停车时物料无法控制等问题。另外圆辊给料机的数量多(只要有一个发生故障，整个大型装置就得停工)、造价高、维护检修困难，因此对活性炭技术的发展带来了一定的限制。Since the flue gas contains a certain amount of water vapor and dust, activated carbon will produce a small amount of sticking phenomenon during the adsorption process, forming lumps to block the feeding port, as shown in Figure 9. If the feeding port is severely blocked, the activated carbon cannot move continuously, causing the activated carbon to absorb saturated and lose the purification effect, and even cause the activated carbon bed to become high in temperature due to the heat storage of the activated carbon, posing a greater safety hazard. The current treatment method is to manually remove the lumps after the system shuts down. In addition, the round roller feeder often fails during the production process, such as: material leakage when the flue gas pressure changes, and the material cannot be controlled when the machine is stopped. In addition, the number of round roller feeders is large (as long as one fails, the entire large-scale device has to be shut down), the cost is high, and maintenance is difficult, so it has brought certain restrictions to the development of activated carbon technology.
其次，对于现有技术的给料旋转阀而言，存在以下问题：对于脱硫脱硝活性炭这类易碎颗粒的输送，使用旋转阀一方面为了保证塔体的气密性，另一方面实现物料的无损运输，但如果在旋转阀输送过程中由于叶片的旋转导致输送介质被剪切，参见附图8，会造成系统运行费用的增加。同时剪切现象会造成阀体磨损，气密性变差，使用寿命降低。特别是在进料口堆满物料时，转动阀芯，叶片与阀壳对输送介质的剪切作用更加明显。对于通常具有20米左右高度的大型吸附塔而言，圆辊给料机或旋转阀在生产过程中发生故障，对于工艺的连续运转造成巨大的损失，因为吸附塔内填装了数吨的活性炭，人工拆除与维修或重新安装相当困难，停工造成的影响和损失难以想象。Secondly, for the feeding rotary valve in the prior art, there are the following problems: For the transportation of fragile particles such as desulfurization and denitrification activated carbon, the use of rotary valves on the one hand ensures the airtightness of the tower body, and on the other hand realizes the material flow. Non-destructive transportation, but if the conveying medium is sheared due to the rotation of the blades during the conveying process of the rotary valve, see Figure 8, it will increase the operating cost of the system. At the same time, the shearing phenomenon will cause the wear of the valve body, the air tightness will be deteriorated, and the service life will be reduced. Especially when the feed port is full of materials, the shearing effect of the vane and the valve housing on the conveying medium is more obvious when the valve core is rotated. For a large adsorption tower usually with a height of about 20 meters, the failure of the round roller feeder or the rotary valve during the production process will cause huge losses to the continuous operation of the process, because the adsorption tower is filled with several tons of activated carbon , It is quite difficult to manually dismantle and repair or reinstall, and the impact and loss caused by the shutdown are unimaginable.
发明内容Contents of the invention
为了避免氨过多逃逸，本申请采取活性炭预先吸附部分氨；同时，为了增强脱硝效果，在吸附塔的中部再次喷入部分氨。In order to prevent excessive ammonia from escaping, this application uses activated carbon to pre-adsorb part of the ammonia; at the same time, in order to enhance the denitrification effect, part of the ammonia is sprayed again in the middle of the adsorption tower.
根据本申请的第一个实施方案，提供一种高效脱硝的脱硫脱硝装置，该装置包括：吸附塔，解析塔，气体混合器，第一活性炭输送机，第二活性炭输送机和在吸附塔的上方设置的活性炭料仓，According to the first embodiment of the present application, a desulfurization and denitrification device for efficient denitrification is provided, which device includes: an adsorption tower, a desorption tower, a gas mixer, a first activated carbon conveyor, a second activated carbon conveyor, and an adsorption tower. The activated carbon silo set above,
其中吸附塔在其一侧具有烟气入口以及分别与烟气入口联通的烟道上部、烟道中部和烟道下部并且在其另一侧具有烟气出口，和Wherein the adsorption tower has a flue gas inlet on one side thereof and an upper part of the flue, a middle part of the flue and a lower part of the flue respectively communicated with the flue gas inlet and has a flue gas outlet on its other side, and
其中从气体混合器的出气口引出的第一气体管道连接至活性炭料仓的进气口(它位于料仓的中部或下部)，从气体混合器的出气口引出的第二气体管道连接至烟道中部和任选地还连接至(即连接或不连接至)烟道上部，从活性炭料仓的出气口(它位于料仓的中部或上部)引出的第三气体管道与第二气体管道汇合。The first gas pipe drawn from the gas outlet of the gas mixer is connected to the air inlet of the activated carbon silo (it is located in the middle or lower part of the silo), and the second gas pipe drawn from the gas outlet of the gas mixer is connected to the smoke The middle part of the flue and optionally also connected (that is, connected or not) to the upper part of the flue, the third gas pipe drawn from the gas outlet of the activated carbon silo (which is located in the middle or upper part of the silo) merges with the second gas pipe .
一般，在烟气入口下游的烟道分为三层，即烟道上部、烟道中部和烟道下部；相应地，同样将吸附塔分为上部、中部、下部。稀释氨气在烟道中的喷入点位于烟道中部(优选位于它的前端)。Generally, the flue downstream of the flue gas inlet is divided into three layers, namely the upper part of the flue, the middle part of the flue and the lower part of the flue; correspondingly, the adsorption tower is also divided into the upper part, the middle part and the lower part. The injection point of diluted ammonia in the flue is located in the middle of the flue (preferably at its front end).
在本申请中，“任选地”表示有或没有，或表示进行或不进行。In the present application, "optionally" means with or without, or means with or without.
一般，在活性炭料仓的上方的活性炭输送管道上设置两个旋转阀。优选在这两个旋转阀之间连接有氮气输送管，用于氮气密封、防止烟气泄漏。Generally, two rotary valves are set on the activated carbon delivery pipeline above the activated carbon silo. Preferably, a nitrogen delivery pipe is connected between the two rotary valves for nitrogen sealing and preventing smoke leakage.
优选，在第一气体管道和第二气体管道的前端分别设置了第一气体阀门V和第二气体阀门V。Preferably, a first gas valve V and a second gas valve V are respectively provided at the front ends of the first gas pipeline and the second gas pipeline.
一般，第一活性炭输送机收集从吸附塔的底部排出的、已经吸附了烟气的活性炭物料，然后输送到解析塔的顶部。Generally, the first activated carbon conveyor collects the activated carbon material discharged from the bottom of the adsorption tower and has absorbed flue gas, and then transports it to the top of the desorption tower.
第二活性炭输送机收集从解析塔排出的已经再生的活性炭，然后输送到吸附塔的顶部料仓中。The second activated carbon conveyor collects the regenerated activated carbon discharged from the desorption tower, and then transports it to the top bin of the adsorption tower.
一般，解析塔的上方进料管上的两个旋转阀之间连接有氮气输送管，以及在解析塔的下方卸料管上的两个旋转阀之间连接有氮气输送管，这些用于氮气密封、防止烟气泄漏。Generally, a nitrogen delivery pipe is connected between the two rotary valves on the upper feed pipe of the desorption tower, and a nitrogen delivery pipe is connected between the two rotary valves on the lower discharge pipe of the desorption tower, which are used for nitrogen Seal to prevent smoke leakage.
在气体混合器中氨气经空气稀释至NH3浓度≤5vol％后变成稀释氨气，第一路稀释氨气经第一气体阀门V和第一气体管道通入位于吸附塔顶部的料仓，稀释氨气被料仓内的活性炭预吸附。另一路或第二路稀释氨气经第二气体阀门V和第二气体管道输送到烟道中部和任选地输送到烟道上部。从活性炭料仓中排出的混合气体经由第三气体管道输送而与另一路或第二路稀释氨气汇合，喷入烟道。烟道分三层，同样将吸附塔分为上部、中部、下部，稀释氨气喷入点位于烟道中部。为了防止料仓内氨气泄露至输送机，在料仓与输送机之间设置双层旋转阀，并通入密封气体(例如氮气或惰性气体)。料仓内AC吸附NH3后，在重力作用下，转移至吸附塔上部，与烟气接触，实现脱硫脱硝，同时导致活性炭吸附的氨逐渐被氮氧化物反应掉，但此时活性炭仍有较强催化活性，为了强化脱硝效果，因此在吸附塔入口烟道中部加入部分氨气；经过吸附塔中部的活性炭，催化活性炭已经很差了，为了避免氨气的浪费，在烟道下部无需喷入氨气。In the gas mixer, the ammonia gas is diluted with air until the concentration of NH3 is ≤5vol%, and then becomes diluted ammonia gas. The first path of diluted ammonia gas passes through the first gas valve V and the first gas pipeline into the hopper at the top of the adsorption tower. , the diluted ammonia is pre-adsorbed by the activated carbon in the silo. Another or second path of diluted ammonia gas is transported to the middle of the flue and optionally to the upper portion of the flue through the second gas valve V and the second gas pipeline. The mixed gas discharged from the activated carbon silo is transported through the third gas pipeline and merged with another or second diluted ammonia gas, and sprayed into the flue. The flue is divided into three layers, and the adsorption tower is also divided into upper, middle, and lower parts. The injection point of diluted ammonia gas is located in the middle of the flue. In order to prevent the ammonia gas in the silo from leaking to the conveyor, a double-layer rotary valve is set between the silo and the conveyor, and a sealing gas (such as nitrogen or inert gas) is introduced. After the AC in the silo absorbs NH3 , it is transferred to the upper part of the adsorption tower under the action of gravity, where it contacts with the flue gas to realize desulfurization and denitrification. At the same time, the ammonia adsorbed by the activated carbon is gradually reacted by nitrogen oxides. Strong catalytic activity, in order to strengthen the denitrification effect, part of the ammonia gas is added in the middle of the inlet flue of the adsorption tower; after the activated carbon in the middle of the adsorption tower, the catalytic activated carbon is already very poor, in order to avoid the waste of ammonia, it is not necessary to spray Ammonia.
在上述第一实施方案中，能够避免氨过多逃逸。采取活性炭预先吸附部分氨；同时，为了增强脱硝效果，在吸附塔的中部再次喷入部分氨。In the first embodiment described above, excessive ammonia slip can be avoided. Activated carbon is used to pre-adsorb part of the ammonia; at the same time, in order to enhance the denitrification effect, part of the ammonia is sprayed again in the middle of the adsorption tower.
根据本申请的第二个实施方案，提供一种高效脱硝的脱硫脱硝装置，该装置包括：吸附塔，解析塔，气体混合器，第一活性炭输送机，第二活性炭输送机和在吸附塔的上方设置的活性炭料仓，According to the second embodiment of the present application, a desulfurization and denitrification device with high efficiency denitrification is provided, which device includes: an adsorption tower, a desorption tower, a gas mixer, a first activated carbon conveyor, a second activated carbon conveyor and an adsorption tower. The activated carbon silo set above,
其中吸附塔在其一侧具有烟气入口以及分别与烟气入口联通的烟道上部、烟道中部和烟道下部并且在其另一侧具有烟气出口，Wherein the adsorption tower has a flue gas inlet on one side and the upper part of the flue, the middle part of the flue and the lower part of the flue respectively communicated with the flue gas inlet and has a flue gas outlet on the other side,
其中解析塔配有氮气输送管，该氮气输送管具有四个支路即第一氮气支路、第二氮气支路、第三氮气支路和第四氮气支路，该第一氮气支路连接至解析塔的下部冷却区段，该第二氮气支路连接至解析塔的上部加热区段，该第三氮气支路连接至解析塔的上方进料管上的两个旋转阀之间，该第四氮气支路连接至解析塔的下方卸料管上的两个旋转阀之间；和Among them, the analytical tower is equipped with a nitrogen delivery pipe. The nitrogen delivery pipe has four branches, namely the first nitrogen branch, the second nitrogen branch, the third nitrogen branch and the fourth nitrogen branch. The first nitrogen branch is connected to To the lower cooling section of the desorption tower, the second nitrogen branch is connected to the upper heating section of the desorption tower, and the third nitrogen branch is connected between the two rotary valves on the upper feed pipe of the desorption tower, the The fourth nitrogen branch is connected between the two rotary valves on the lower discharge pipe of the desorption tower; and
其中氨气输送管被分成两路即第一气体管道和第二气体管道，该第一气体管道连接至第一氮气支路，第二气体管道连接至气体混合器的氨气进口，从气体混合器的混合气体出口引出的第三气体管道连通至吸附塔的烟道中部(优选，喷氨点位于它的前端)。Wherein the ammonia delivery pipe is divided into two paths, the first gas pipeline and the second gas pipeline, the first gas pipeline is connected to the first nitrogen branch, and the second gas pipeline is connected to the ammonia gas inlet of the gas mixer, from the gas mixing The third gas pipeline drawn from the mixed gas outlet of the device is connected to the middle part of the flue of the adsorption tower (preferably, the ammonia injection point is located at its front end).
一般，解析塔的上部加热区段为壳管换热结构，其中加热气体走壳程，而活性炭走管程。下部冷却区段也为壳管换热结构，其中冷却气体走壳程，而活性炭走管程。Generally, the upper heating section of the desorption tower is a shell-and-tube heat exchange structure, in which the heating gas goes through the shell side, and the activated carbon goes through the tube side. The lower cooling section is also a shell-and-tube heat exchange structure, in which the cooling gas goes through the shell side, while the activated carbon goes through the tube side.
该第一氮气支路输送氮气进入到下部冷却区段的管程中。该第二氮气支路输送氮气进入到上部加热区段的管程中。The first nitrogen branch delivers nitrogen into the tube side of the lower cooling section. The second nitrogen branch delivers nitrogen into the tube side of the upper heating section.
一般，在吸附塔的活性炭料仓的上方的活性炭输送管道上设置两个旋转阀。优选在这两个旋转阀之间连接有氮气输送管，用于氮气密封、防止烟气泄漏。Generally, two rotary valves are set on the activated carbon delivery pipeline above the activated carbon silo of the adsorption tower. Preferably, a nitrogen delivery pipe is connected between the two rotary valves for nitrogen sealing and preventing smoke leakage.
优选，在第一气体管道和第二气体管道的前端分别设置了第一气体阀门V和第二气体阀门V。Preferably, a first gas valve V and a second gas valve V are respectively provided at the front ends of the first gas pipeline and the second gas pipeline.
一般，第一活性炭输送机收集从吸附塔的底部排出的、已经吸附了烟气的活性炭物料，然后输送到解析塔的顶部。Generally, the first activated carbon conveyor collects the activated carbon material discharged from the bottom of the adsorption tower and has absorbed flue gas, and then transports it to the top of the desorption tower.
第二活性炭输送机收集从解析塔排出的已经再生的活性炭，然后输送到吸附塔的顶部料仓中。The second activated carbon conveyor collects the regenerated activated carbon discharged from the desorption tower, and then transports it to the top bin of the adsorption tower.
解析塔内通入氮气的主要作用：一是密封，二是做为SO2的载气。一般分四路通入解析塔，其中包括解析塔冷却段下部的一路氮气。一定量的氨气经由第一气体阀门和第一气体管道而进入解析塔冷却段下部的氮气管路中，经氮气稀释后与冷却后的再生活性炭接触，氨气被活性炭预先吸附。另外一部分的氨气在气体混合器中氨气经空气稀释至NH3浓度≤5vol％后变成稀释氨气，喷入烟道。烟道分三层，同样将吸附塔分为上部、中部、下部，稀释氨气喷入点位于烟道中部。解析塔冷却段下部AC吸附NH3后，经输送机移至吸附塔上部，与烟气接触，实现脱硫脱硝，同时导致活性炭吸附的氨逐渐被反应消耗掉，但此时活性炭仍有较强催化活性，为了强化脱硝效果，在吸附塔入口烟道中部加入稀释氨气；经过吸附塔中部的活性炭，催化活性炭已经很差了，为了避免氨气的浪费，在烟道下部无需喷入氨气。The main functions of introducing nitrogen into the analytical tower are: one is to seal, and the other is to serve as a carrier gas for SO2 . Generally, it is divided into four ways to lead to the desorption tower, including one way of nitrogen in the lower part of the cooling section of the desorption tower. A certain amount of ammonia gas enters the nitrogen pipeline at the lower part of the cooling section of the desorption tower through the first gas valve and the first gas pipeline, and after being diluted with nitrogen, it contacts the cooled regenerated activated carbon, and the ammonia gas is pre-adsorbed by the activated carbon. The other part of the ammonia becomes diluted ammonia after being diluted with air in the gas mixer until the concentration ofNH3≤5vol %, and then sprayed into the flue. The flue is divided into three layers, and the adsorption tower is also divided into upper, middle, and lower parts. The injection point of diluted ammonia gas is located in the middle of the flue. After the AC adsorbsNH3 in the lower part of the cooling section of the desorption tower, it is moved to the upper part of the adsorption tower by the conveyor, and contacts with the flue gas to realize desulfurization and denitrification. At the same time, the ammonia adsorbed by the activated carbon is gradually consumed by the reaction, but the activated carbon still has a strong catalytic effect at this time. Activity, in order to strengthen the denitrification effect, dilute ammonia gas is added to the middle of the inlet flue of the adsorption tower; after passing through the activated carbon in the middle of the adsorption tower, the catalytic activated carbon is already very poor, in order to avoid the waste of ammonia, there is no need to inject ammonia into the lower part of the flue.
在上述第二实施方案中，能够避免氨过多逃逸。采取活性炭在解析塔冷却段下部预先吸附部分氨；为了增强脱硝效果，在吸附塔中部再次喷入部分氨。In the second embodiment described above, excessive ammonia slip can be avoided. Activated carbon is used to pre-adsorb part of the ammonia in the lower part of the cooling section of the desorption tower; in order to enhance the denitrification effect, part of the ammonia is sprayed again in the middle of the adsorption tower.
优选的是，吸附塔具有3个活性炭料室，按照烟气的流动方向的顺序，第一料室(即前室)、第二料室(即中室)和第三料室(即后室)的厚度分别90-350mm(优选100-250mm,110-230mm，如120、150、200或220mm)、360-2000mm(优选380-1800mm，优选400-1600mm，如450、600、700、800、900、1200、1500、1700mm)和420-2200mm(优选432-2200mm，优选450-2050mm，如500、600、700、800、900、1000、1100mm、1400mm、1600mm、1800mm或2000mm)。Preferably, the adsorption tower has 3 activated carbon chambers. According to the order of the flow direction of the flue gas, the first chamber (i.e. the front chamber), the second chamber (i.e. the middle chamber) and the third chamber (i.e. the rear chamber) ) thickness of 90-350mm (preferably 100-250mm, 110-230mm, such as 120, 150, 200 or 220mm), 360-2000mm (preferably 380-1800mm, preferably 400-1600mm, such as 450, 600, 700, 800, 900, 1200, 1500, 1700mm) and 420-2200mm (preferably 432-2200mm, preferably 450-2050mm, such as 500, 600, 700, 800, 900, 1000, 1100mm, 1400mm, 1600mm, 1800mm or 2000mm).
优选的是，在吸附塔的每一个料室的底部具有一个排料圆辊。Preferably, there is a discharge circular roller at the bottom of each chamber of the adsorption tower.
优选的是，在吸附塔的下料仓或底仓具有一个或多个泄料旋转阀。Preferably, there are one or more discharge rotary valves in the lower silo or bottom silo of the adsorption tower.
在本申请的所有脱硫脱硝系统中，一般，在解析塔的底部出料口的下方或下游采用装有筛网的振动筛。In all the desulfurization and denitrification systems of this application, generally, a vibrating screen equipped with a screen is used below or downstream of the bottom outlet of the desorption tower.
为了避免药片状的活性炭在筛网上的截留，本申请设计出具有长方形筛孔或长条形筛孔的筛网。该筛网可安装在振动筛上，筛选出满足脱硫脱硝装置的需要的活性炭颗粒。In order to avoid the interception of tablet-shaped activated carbon on the sieve, the applicant designs a sieve with a rectangular mesh or a strip mesh. The screen can be installed on the vibrating screen to screen out the activated carbon particles that meet the needs of the desulfurization and denitrification device.
因此，优选的是，提供一种具有长方形筛孔或长条形筛孔的筛网，该长方形筛孔的长度L≥3D，长方形筛孔的宽度a＝0.65h-0.95h(优选0.7h-0.9h，更优选0.73h-0.85h)，其中D是在筛网上所要截留的活性炭圆柱体的圆形横截面的直径，h是在筛网上所要截留的颗粒状活性炭圆柱体长度的最小值。Therefore, it is preferred to provide a screen cloth with a rectangular mesh or a strip mesh, the length of the rectangular mesh is L≥3D, the width a of the rectangular mesh is a=0.65h-0.95h (preferably 0.7h- 0.9h, more preferably 0.73h-0.85h), wherein D is the diameter of the circular cross-section of the activated carbon cylinder to be retained on the screen, and h is the minimum length of the granular activated carbon cylinder to be retained on the screen.
尤其，为了克服在脱硫脱硝装置中遇到的现有技术问题，一般要求活性炭圆柱体长度的最小值h为1.5mm-7mm。例如h＝2，4或6mm。In particular, in order to overcome the prior art problems encountered in desulfurization and denitrification devices, it is generally required that the minimum value h of the length of the activated carbon cylinder be 1.5mm-7mm. For example h=2, 4 or 6mm.
D(或)取决于脱硫脱硝装置的具体要求。一般，优选5-9mm，更优选5.5-8.5mm，更优选6-8mm，例如6.5mm、7mm或7.5mm。D (or ) depends on the specific requirements of the desulfurization and denitrification device. generally, Preferably 5-9mm, more preferably 5.5-8.5mm, more preferably 6-8mm, eg 6.5mm, 7mm or 7.5mm.
吸附塔一般具有至少2个活性炭料室。The adsorption tower generally has at least 2 activated carbon chambers.
优选的是，在吸附塔的每一个活性炭料室的底部具有一个圆辊给料机或排料圆辊(G)。对于这里所述的排料圆辊(G)，可以使用现有技术的排料圆辊。但是，优选的是，代替圆辊给料机或排料圆辊(G)，可以使用的一种新型的星轮式活性炭排料装置(G)，它包括：活性炭料室下部的前挡板和后挡板，和位于由活性炭料室下部的前挡板和后挡板和两个侧板所构成的排料口下方的星轮式活性炭排料辊；其中星轮式活性炭排料辊包括圆辊和沿着圆辊的圆周等角度分布或基本上等角度分布的多个叶片。更具体地说，在由活性炭料室下部的前挡板和后挡板和两个侧板所构成的排料口下方使用一种新型的星轮式活性炭排料辊。Preferably, there is a roller feeder or a discharge roller (G) at the bottom of each activated carbon material chamber of the adsorption tower. For the discharge rollers (G) described here, prior art discharge rollers can be used. However, preferably, instead of the round roller feeder or the discharge round roller (G), a new type of star wheel type activated carbon discharge device (G) can be used, which includes: the front baffle at the lower part of the activated carbon material chamber And the rear baffle, and the star wheel activated carbon discharge roller located below the discharge opening formed by the front baffle, rear baffle and two side plates at the lower part of the activated carbon material chamber; wherein the star wheel activated carbon discharge roller includes A circular roller and a plurality of vanes equiangularly or substantially equiangularly distributed along the circumference of the circular roller. More specifically, a new type of star-wheel activated carbon discharge roller is used below the discharge opening formed by the front and rear baffles and two side plates in the lower part of the activated carbon chamber.
从星轮式活性炭排料辊的横截面上看，呈现星轮式构型或外形。Seen from the cross-section of the star wheel activated carbon discharge roller, it presents a star wheel configuration or shape.
星轮式活性炭下料装置主要由活性炭排料口的前挡板、后挡板和两个侧板与叶片和圆辊组成。前挡板和后挡板固定设置，前挡板和后挡板之间留有活性炭下料通道，即排料口，该排料口由前挡板、后挡板和两个侧板构成。圆辊设置在前挡板与后挡板的下端，叶片均布固定在圆辊上，圆辊由电机带动做回转运动，回转方向由后挡板向前挡板方向。叶片之间的夹角或间距不能过大，叶片之间的夹角θ一般设计为小于64°，例如12-64°，优选15-60°,优选20-55°，更优选25-50°，更优选30-45°。叶片与后挡板底端之间设计一间隙或间距s。该s一般取0.5-5mm，优选0.7-3mm，优选1-2mm。The star wheel activated carbon feeding device is mainly composed of the front baffle, the rear baffle, two side plates, blades and round rollers of the activated carbon discharge port. The front baffle and the rear baffle are fixedly arranged, and there is an activated carbon discharge channel between the front baffle and the rear baffle, that is, the discharge port, which is composed of the front baffle, the rear baffle and two side plates. The round roller is arranged at the lower end of the front baffle and the rear baffle, and the blades are evenly distributed and fixed on the round roller. The round roller is driven by the motor to make a rotary motion, and the direction of rotation is from the rear baffle to the direction of the front baffle. The angle or spacing between the blades cannot be too large, and the angle θ between the blades is generally designed to be less than 64°, such as 12-64°, preferably 15-60°, preferably 20-55°, more preferably 25-50° , more preferably 30-45°. A gap or spacing s is designed between the blade and the bottom end of the tailgate. The s is generally 0.5-5mm, preferably 0.7-3mm, preferably 1-2mm.
星轮式活性炭排料辊的外周半径(或圆辊上的叶片的外周旋转半径)是r。r是圆辊(106a)的横截面(圆)的半径+叶片的宽度。The outer peripheral radius of the star wheel type activated carbon discharge roller (or the outer peripheral rotation radius of the blade on the round roller) is r. r is the radius of the cross section (circle) of the round roller (106a) + the width of the blade.
一般，圆辊的横截面(圆)的半径是30-120mm、优选50-100mm，叶片的宽度是40-130mm、优选60-100mm。Generally, the radius of the cross-section (circle) of the round roller is 30-120mm, preferably 50-100mm, and the width of the blade is 40-130mm, preferably 60-100mm.
圆辊中心与前挡板下端之间的距离为h，h一般要大于r+(12-30)mm，但小于r/sin58°，这样既能保证活性炭下料顺畅，又能保证圆辊不动时活性炭不自行滑落。The distance between the center of the round roller and the lower end of the front baffle is h, and h is generally greater than r+(12-30)mm, but less than r/sin58°, which can not only ensure smooth feeding of activated carbon, but also ensure that the round roller does not move Activated carbon does not slip off by itself.
一般，在本申请中，星轮式活性炭排料装置的排料口的横截面为正方形或长方形，优选为长度大于宽度的长方形(或矩形)。即，长度大于宽度的长方形(或矩形)。Generally, in this application, the cross-section of the discharge opening of the star wheel activated carbon discharge device is a square or a rectangle, preferably a rectangle (or rectangle) whose length is greater than its width. That is, a rectangle (or rectangle) whose length is greater than its width.
优选的是，在吸附塔的下料仓或底仓(H)具有一个或多个泄料旋转阀。Preferably, there are one or more discharge rotary valves in the lower silo or bottom silo (H) of the adsorption tower.
对于这里所述的旋转阀，可以使用现有技术的旋转阀。但是，优选的是，使用一种新型的旋转阀，它包括：上部进料口，阀芯，叶片，阀壳，下部出料口，位于阀的内腔的上部空间的缓冲区，和平料板；其中缓冲区与进料口的下部空间相邻且彼此联通，缓冲区在水平方向上的横截面的长度大于进料口在水平方向上的横截面的长度；其中平料板设置于缓冲区内，平料板的上端固定在缓冲区的顶部，平料板在水平方向上的横截面呈现“V”形。For the rotary valves described herein, prior art rotary valves can be used. However, it is preferable to use a new type of rotary valve, which includes: an upper inlet, a valve core, vanes, a valve housing, a lower outlet, a buffer zone located in the upper space of the inner cavity of the valve, and a flattening plate ; Wherein the buffer zone is adjacent to the lower space of the feed port and communicates with each other, the length of the cross section of the buffer zone in the horizontal direction is greater than the length of the cross section of the feed port in the horizontal direction; wherein the flat material plate is arranged in the buffer zone Inside, the upper end of the flat sheet is fixed on the top of the buffer zone, and the horizontal cross-section of the flat sheet presents a "V" shape.
优选，上部进料口的横截面是长方形或矩形，而缓冲区的横截面是长方形或矩形。Preferably, the cross section of the upper feeding port is rectangular or rectangular, and the cross section of the buffer zone is rectangular or rectangular.
优选，缓冲区的横截面的长度小于叶片在水平方向上的横截面的长度。Preferably, the length of the cross-section of the buffer zone is smaller than the length of the cross-section of the blade in the horizontal direction.
优选，平料板是由两片单板拼接而成，或者平料板是由一片板弯折成两个板面。Preferably, the flat sheet is formed by splicing two veneers, or the flat sheet is bent from one sheet to form two sheets.
优选，两片单板或两个板面的夹角2α≤120°，优选2α≤90°。因此，α≤60°，优选α≤45°。。Preferably, the angle 2α between two veneers or two board surfaces is ≤120°, preferably 2α≤90°. Therefore, α≦60°, preferably α≦45°. .
优选，每一个单板或每一个板面与缓冲区的长度方向之间的夹角Φ≥30°，优选，≥45°，更优选的是，Φ≥活性炭物料的摩擦角。Preferably, the angle between each veneer or each plate surface and the length direction of the buffer zone is Φ≥30°, preferably ≥45°, more preferably, Φ≥the friction angle of the activated carbon material.
优选，两片单板各自的底部或两个板面各自的底部都呈现圆弧形。Preferably, the respective bottoms of the two veneers or the respective bottoms of the two board surfaces are arc-shaped.
优选，两片单板或两个板面之间的中心线段的长度等于或小于缓冲区在水平方向上的横截面的宽度。Preferably, the length of the center line segment between two veneers or two board surfaces is equal to or smaller than the width of the cross-section of the buffer zone in the horizontal direction.
显然，α+Φ＝90°。Obviously, α+Φ=90°.
一般，在本申请中，旋转阀的排料口的横截面为正方形或长方形，优选为长度大于宽度的长方形(或矩形)。即，长度大于宽度的长方形(或矩形)。Generally, in this application, the cross-section of the discharge port of the rotary valve is square or rectangular, preferably rectangular (or rectangular) whose length is greater than its width. That is, a rectangle (or rectangle) whose length is greater than its width.
一般，吸附塔的主体结构的高度是10-60m(米)，优选12-55m(米)，优选14-50m，优选16-45m，18-40m，优选20-35m，优选22-30m。吸附塔的主体结构的高度是指从吸附塔(主体结构)的进口到出口之间的高度。吸附塔的塔高是指从吸附塔底部活性炭出口到吸附塔顶部活性炭入口的高度，即塔的主体结构的高度。Generally, the height of the main structure of the adsorption tower is 10-60m (meter), preferably 12-55m (meter), preferably 14-50m, preferably 16-45m, 18-40m, preferably 20-35m, preferably 22-30m. The height of the main structure of the adsorption tower refers to the height from the inlet to the outlet of the adsorption tower (main structure). The tower height of the adsorption tower refers to the height from the activated carbon outlet at the bottom of the adsorption tower to the activated carbon inlet at the top of the adsorption tower, that is, the height of the main structure of the tower.
解析塔或再生塔，通常具有8-45米、优选10-40米、更优选12-35米的塔高。解析塔通常具有6-100米2、优选8-50米2、更优选10-30米2、进一步优选15-20米2的主体横截面积。The desorption tower or regeneration tower usually has a tower height of 8-45 meters, preferably 10-40 meters, more preferably 12-35 meters. The desorption column generally has a main body cross-sectional area of 6-100 m2 , preferably 8-50 m2 , more preferably 10-30 m2 , further preferably 15-20 m2 .
另外，在本申请中，烟气在广义上包括：常规的工业烟气或工业废气。In addition, in this application, flue gas includes in a broad sense: conventional industrial flue gas or industrial waste gas.
活性炭腔室或料室的厚度是指该活性炭腔室或料室的两个多孔隔板之间的距离或间距。The thickness of an activated carbon chamber or chamber refers to the distance or spacing between two porous partitions of the activated carbon chamber or chamber.
本发明的优点或有益技术效果Advantages or beneficial technical effects of the present invention
1、通过让活性炭预先吸附一定量的氨气，增强脱硝的效果，在现有技术的基础上提高40％以上的脱硝效果。1. By letting the activated carbon pre-adsorb a certain amount of ammonia, the effect of denitrification is enhanced, and the denitrification effect is increased by more than 40% on the basis of the existing technology.
2、减少了氨气逃逸。2. Reduced ammonia escape.
3、在振动筛中采用具有长方形筛孔的筛网，消除了药片活性炭发生架桥现象，筛下除去了耐磨耐压强度均很低的药片状活性炭，避免在脱硫脱硝装置中产生碎片和粉尘，减少活性炭移动阻力，降低了吸附塔内活性炭高温燃烧风险，让高强度的活性炭在装置中再循环。3. A screen with rectangular meshes is used in the vibrating screen, which eliminates the bridging phenomenon of tablet activated carbon, removes tablet-shaped activated carbon with low wear resistance and compressive strength under the screen, and avoids debris in the desulfurization and denitrification device and dust, reduce the resistance of activated carbon to move, reduce the risk of high-temperature combustion of activated carbon in the adsorption tower, and allow high-strength activated carbon to recirculate in the device.
4、采用特殊的排料装置，减少活性炭的卸料故障，大大降低整套装置停工检修的频率。4. The special discharge device is adopted to reduce the discharge failure of activated carbon and greatly reduce the frequency of shutdown and maintenance of the whole set of equipment.
附图说明Description of drawings
图1是现有技术的包括活性炭吸附塔和活性炭再生塔的脱硫脱硝装置及工艺流程示意图。Fig. 1 is a schematic diagram of a prior art desulfurization and denitrification device including an activated carbon adsorption tower and an activated carbon regeneration tower and a process flow.
图2是本发明的脱硝脱硝装置及工艺流程示意图。Fig. 2 is a schematic diagram of the denitrification device and process flow of the present invention.
图3是本发明的另一种脱硝脱硝装置及工艺流程示意图。Fig. 3 is a schematic diagram of another denitrification device and process flow of the present invention.
图4为现有技术的筛网的结构示意图。Fig. 4 is a schematic structural diagram of a screen in the prior art.
图5为本申请的筛网的结构示意图。Fig. 5 is a schematic diagram of the structure of the screen of the present application.
图6为药片状活性炭的示意图。Fig. 6 is a schematic diagram of tablet-shaped activated carbon.
图7为长条形活性炭的示意图。Figure 7 is a schematic diagram of strip-shaped activated carbon.
图8和9是现有技术的活性炭排料装置(圆辊给料机)的示意图。8 and 9 are schematic diagrams of activated carbon discharge devices (roller feeders) in the prior art.
图10是本申请的星轮式活性炭排料装置的示意图。Fig. 10 is a schematic diagram of the star wheel activated carbon discharge device of the present application.
图11本发明的旋转阀F的示意图。Fig. 11 is a schematic diagram of a rotary valve F of the present invention.
图12和图13是沿着图11的M-M线的横截面的结构示意图。FIG. 12 and FIG. 13 are structural schematic diagrams of cross-sections along line M-M in FIG. 11 .
图14是平料板(F07)的结构示意图。Fig. 14 is a schematic structural view of a flat sheet (F07).
附图标记：Reference signs:
1：活性炭吸附塔；101：烟道上部；102：烟道中部；103：烟道下部；A：烟气入口；B：烟气出口；AC：活性炭料仓；2：解析塔；201：加热区(段)；202：冷却区(段)；3：气体混合器；4：第一活性炭输送机，5：第二活性炭输送机；Sc:振动筛；1: activated carbon adsorption tower; 101: upper part of the flue; 102: middle part of the flue; 103: lower part of the flue; A: flue gas inlet; B: flue gas outlet; AC: activated carbon silo; 2: desorption tower; 201: heating District (section); 202: cooling zone (section); 3: gas mixer; 4: the first activated carbon conveyor, 5: the second activated carbon conveyor; Sc: vibrating screen;
V1：第一气体阀门；V2：第二气体阀门；Vr：活性炭旋转阀；V1: first gas valve; V2: second gas valve; Vr: activated carbon rotary valve;
L1：第一气体管道，L2：第二气体管道；L3：第三气体管道。L1: first gas pipeline, L2: second gas pipeline; L3: third gas pipeline.
L4：氮气输送管；L4a：第一氮气支管；L4b：第二氮气支管；L4c：第三氮气支管；L4d：第四氮气支管。L4: nitrogen delivery pipe; L4a: first nitrogen branch pipe; L4b: second nitrogen branch pipe; L4c: third nitrogen branch pipe; L4d: fourth nitrogen branch pipe.
AC-c：活性炭料室；H：下料斗或底仓；AC：活性炭；AC-1：活性炭块状物(或聚集物)；F：旋转阀；AC-c: activated carbon material chamber; H: lower hopper or bottom bin; AC: activated carbon; AC-1: activated carbon block (or aggregate); F: rotary valve;
G：圆辊给料机或星轮式活性炭排料装置或星轮式活性炭排料辊；G01：圆辊；G02：叶片；AC-I：前挡板；AC-II：后挡板；G: round roller feeder or star wheel activated carbon discharge device or star wheel activated carbon discharge roller; G01: round roller; G02: blade; AC-I: front baffle; AC-II: rear baffle;
h：圆辊G01的轴中心与前挡板AC-I下端之间的距离；S：叶片与后挡板底端之间的(间隙)间距；θ：圆辊G01上相邻叶片G02之间的夹角；r：叶片的外缘与圆辊G01的轴中心之间的距离(即叶片相对于圆辊G01的中心而言的半径，简称半径)；h: the distance between the axis center of the round roller G01 and the lower end of the front baffle AC-I; S: the (gap) distance between the blade and the bottom end of the rear baffle; θ: between the adjacent blades G02 on the round roller G01 r: the distance between the outer edge of the blade and the axis center of the round roller G01 (ie the radius of the blade relative to the center of the round roller G01, referred to as the radius);
F：给料旋转阀；F01：阀芯；F02：叶片；F03：阀壳；F04：上部进料口；F05：下部出料口；F06:位于阀的内腔的上部空间的缓冲区；F07：平料板；F0701或F0702：平料板F07的两片单板或平料板F07的两个板面。F: feeding rotary valve; F01: valve core; F02: vane; F03: valve housing; F04: upper inlet; F05: lower outlet; F06: buffer zone located in the upper space of the inner cavity of the valve; F07 : flat sheet; F0701 or F0702: two veneers of flat sheet F07 or two surfaces of flat sheet F07.
α：两片单板(F0701,F0702)或两个板面(F0701,F0702)的夹角的1/2。α: 1/2 of the angle between two single boards (F0701, F0702) or two board surfaces (F0701, F0702).
Φ：每一个单板(F0701或F0702)或每一个板面(F0701或F0702)与缓冲区(F06)的长度方向之间的夹角。Φ: The angle between each single board (F0701 or F0702) or each board surface (F0701 or F0702) and the length direction of the buffer zone (F06).
L1：进料口F04在水平面方向上的横截面的长度；L2：平料板F07在水平面方向上的横截面的长度。L1: the length of the cross section of the feed port F04 in the horizontal direction; L2: the length of the cross section of the flat sheet F07 in the horizontal direction.
具体实施方式Detailed ways
实施例中需要处理的烧结烟气是来自钢铁工业的烧结机烟气。The sintering flue gas to be processed in the embodiment is the sintering machine flue gas from the iron and steel industry.
如图2中所示，提供一种高效脱硝的脱硫脱硝装置，该装置包括：吸附塔1，解析塔2，气体混合器3，第一活性炭输送机4，第二活性炭输送机5和在吸附塔1的上方设置的活性炭料仓AC，As shown in Fig. 2, provide a kind of desulfurization and denitrification device of efficient denitrification, this device comprises: adsorption tower 1, desorption tower 2, gas mixer 3, the first activated carbon conveyer 4, the second activated carbon conveyer 5 and in the adsorption The activated carbon silo AC provided above the tower 1,
其中吸附塔1在其一侧具有烟气入口A以及分别与烟气入口A联通的烟道上部101、烟道中部102和烟道下部103并且在其另一侧具有烟气出口B，和Wherein the adsorption tower 1 has a flue gas inlet A and a flue upper part 101, a flue middle part 102 and a flue lower part 103 respectively communicated with the flue gas inlet A on one side thereof and has a flue gas outlet B on its other side, and
其中从气体混合器3的出气口引出的第一气体管道L1连接至活性炭料仓AC的进气口(它位于料仓AC的中部或下部)，从气体混合器3的出气口引出的第二气体管道L2连接至烟道中部102和任选地还连接至(即连接或不连接至)烟道上部101，从活性炭料仓AC的出气口(它位于料仓AC的中部或上部)引出的第三气体管道L3与第二气体管道L2汇合。Wherein the first gas pipeline L1 drawn from the gas outlet of the gas mixer 3 is connected to the air inlet of the activated carbon silo AC (it is positioned at the middle or lower part of the silo AC), the second gas pipeline L drawn from the gas outlet of the gas mixer 3 The gas pipe L2 is connected to the middle part 102 of the flue and optionally also connected (i.e. connected or not) to the upper part 101 of the flue, which is drawn from the gas outlet of the activated carbon silo AC (which is located in the middle or upper part of the silo AC). The third gas line L3 merges with the second gas line L2.
一般，在烟气入口下游的烟道分为三层，即烟道上部101、烟道中部102和烟道下部103；相应地，同样将吸附塔1分为上部、中部、下部。稀释氨气在烟道中的喷入点位于烟道中部102(优选位于它的前端)。Generally, the flue downstream of the flue gas inlet is divided into three layers, namely the upper part 101 of the flue, the middle part 102 of the flue and the lower part 103 of the flue; correspondingly, the adsorption tower 1 is also divided into upper, middle and lower parts. The injection point of the diluted ammonia gas in the flue is located at the middle part 102 of the flue (preferably at its front end).
在本申请中，“任选地”表示有或没有，或表示进行或不进行。In the present application, "optionally" means with or without, or means with or without.
一般，在活性炭料仓AC的上方的活性炭输送管道上设置两个旋转阀Vr。优选在这两个旋转阀Vr之间连接有氮气输送管，用于氮气密封、防止烟气泄漏。Generally, two rotary valves Vr are set on the activated carbon delivery pipeline above the activated carbon silo AC. Preferably, a nitrogen delivery pipe is connected between the two rotary valves Vr for nitrogen sealing and preventing smoke leakage.
优选，在第一气体管道L1和第二气体管道L2的前端分别设置了第一气体阀门V1和第二气体阀门V2。Preferably, a first gas valve V1 and a second gas valve V2 are respectively provided at the front ends of the first gas pipeline L1 and the second gas pipeline L2.
一般，第一活性炭输送机4收集从吸附塔1的底部排出的、已经吸附了烟气的活性炭物料，然后输送到解析塔的顶部。Generally, the first activated carbon conveyor 4 collects the activated carbon material discharged from the bottom of the adsorption tower 1 and has absorbed flue gas, and then transports it to the top of the desorption tower.
第二活性炭输送机5收集从解析塔2排出的已经再生的活性炭，然后输送到吸附塔1的顶部料仓3中。The second activated carbon conveyor 5 collects the regenerated activated carbon discharged from the desorption tower 2, and then transports it to the top bin 3 of the adsorption tower 1.
一般，解析塔2的上方进料管上的两个旋转阀Vr之间连接有氮气输送管，以及在解析塔2的下方卸料管上的两个旋转阀Vr之间连接有氮气输送管，这些用于氮气密封、防止烟气泄漏。Generally, a nitrogen delivery pipe is connected between the two rotary valves Vr on the upper feed pipe of the desorption tower 2, and a nitrogen delivery pipe is connected between the two rotary valves Vr on the discharge pipe below the desorption tower 2, These are used for nitrogen gas sealing, preventing fume leakage.
在气体混合器3中氨气经空气稀释至NH3浓度≤5vol％后变成稀释氨气，第一路稀释氨气经第一气体阀门V1和第一气体管道L1通入位于吸附塔顶部的料仓，稀释氨气被料仓内的活性炭预吸附。另一路或第二路稀释氨气经第二气体阀门V2和第二气体管道L2输送到烟道中部102和任选地输送到烟道上部101。从活性炭料仓AC中排出的混合气体经由第三气体管道L3输送而与另一路或第二路稀释氨气汇合，喷入烟道。烟道分三层，同样将吸附塔分为上部、中部、下部，稀释氨气喷入点位于烟道中部。为了防止料仓内氨气泄露至输送机，在料仓与输送机之间设置双层旋转阀Vr，并通入密封气体(例如氮气或惰性气体)。料仓内AC吸附NH3后，在重力作用下，转移至吸附塔上部，与烟气接触，实现脱硫脱硝，同时导致活性炭吸附的氨逐渐被氮氧化物反应掉，但此时活性炭仍有较强催化活性，为了强化脱硝效果，因此在吸附塔入口烟道中部加入部分氨气；经过吸附塔中部的活性炭，催化活性炭已经很差了，为了避免氨气的浪费，在烟道下部无需喷入氨气。In the gas mixer 3, the ammonia gas is diluted with air until the concentration ofNH3≤5vol % becomes diluted ammonia gas, and the first road diluted ammonia gas passes through the first gas valve V1 and the first gas pipeline L1 into the adsorption tower top. In the silo, the diluted ammonia is pre-adsorbed by the activated carbon in the silo. Another or second path of diluted ammonia gas is delivered to the middle part 102 of the flue and optionally to the upper part 101 of the flue through the second gas valve V2 and the second gas pipeline L2. The mixed gas discharged from the activated carbon silo AC is transported through the third gas pipeline L3 and merged with another or second channel of diluted ammonia gas, and sprayed into the flue. The flue is divided into three layers, and the adsorption tower is also divided into upper, middle, and lower parts. The injection point of diluted ammonia gas is located in the middle of the flue. In order to prevent the ammonia gas in the silo from leaking to the conveyor, a double-layer rotary valve Vr is set between the silo and the conveyor, and a sealing gas (such as nitrogen or inert gas) is introduced. After the AC in the silo absorbs NH3 , it is transferred to the upper part of the adsorption tower under the action of gravity, where it contacts with the flue gas to realize desulfurization and denitrification. At the same time, the ammonia adsorbed by the activated carbon is gradually reacted by nitrogen oxides. Strong catalytic activity, in order to strengthen the denitrification effect, part of the ammonia gas is added in the middle of the inlet flue of the adsorption tower; after the activated carbon in the middle of the adsorption tower, the catalytic activated carbon is already very poor, in order to avoid the waste of ammonia, it is not necessary to spray Ammonia.
在上述第一实施方案中，能够避免氨过多逃逸。采取活性炭预先吸附部分氨；同时，为了增强脱硝效果，在吸附塔的中部再次喷入部分氨。In the first embodiment described above, excessive ammonia slip can be avoided. Activated carbon is used to pre-adsorb part of the ammonia; at the same time, in order to enhance the denitrification effect, part of the ammonia is sprayed again in the middle of the adsorption tower.
如图3中所示，提供一种高效脱硝的脱硫脱硝装置，该装置包括：吸附塔1，解析塔2，气体混合器3，第一活性炭输送机4，第二活性炭输送机5和在吸附塔1的上方设置的活性炭料仓AC，As shown in Fig. 3, provide a kind of desulfurization and denitrification device of efficient denitrification, this device comprises: adsorption tower 1, desorption tower 2, gas mixer 3, the first activated carbon conveyer 4, the second activated carbon conveyer 5 and in the adsorption The activated carbon silo AC provided above the tower 1,
其中吸附塔1在其一侧具有烟气入口A以及分别与烟气入口A联通的烟道上部101、烟道中部102和烟道下部103并且在其另一侧具有烟气出口B，Wherein the adsorption tower 1 has a flue gas inlet A and a flue upper part 101, a flue middle part 102 and a flue lower part 103 respectively communicated with the flue gas inlet A on one side thereof and has a flue gas outlet B on its other side,
其中解析塔2配有氮气输送管L4，该氮气输送管L4具有四个支路即第一氮气支路L4a、第二氮气支路L4b、第三氮气支路L4c和第四氮气支路L4d，该第一氮气支路L4a连接至解析塔2的下部冷却区段202，该第二氮气支路L4b连接至解析塔2的上部加热区段201，该第三氮气支路L4c连接至解析塔2的上方进料管上的两个旋转阀Vr之间，该第四氮气支路L4d连接至解析塔2的下方卸料管上的两个旋转阀Vr之间；和Wherein the analytical tower 2 is equipped with a nitrogen delivery pipe L4, and the nitrogen delivery pipe L4 has four branches, namely the first nitrogen branch L4a, the second nitrogen branch L4b, the third nitrogen branch L4c and the fourth nitrogen branch L4d, The first nitrogen branch L4a is connected to the lower cooling section 202 of the desorption tower 2, the second nitrogen branch L4b is connected to the upper heating section 201 of the desorption tower 2, and the third nitrogen branch L4c is connected to the desorption tower 2 Between the two rotary valves Vr on the upper feed pipe of the above, the fourth nitrogen branch L4d is connected between the two rotary valves Vr on the lower discharge pipe of the desorption tower 2; and
其中氨气输送管被分成两路即第一气体管道L1和第二气体管道L2，该第一气体管道L1连接至第一氮气支路L4a，第二气体管道L2连接至气体混合器3的氨气进口，从气体混合器3的混合气体出口引出的第三气体管道L3连通至吸附塔1的烟道中部102(优选，喷氨点位于它的前端)。Wherein the ammonia delivery pipe is divided into two paths, namely the first gas pipeline L1 and the second gas pipeline L2, the first gas pipeline L1 is connected to the first nitrogen branch L4a, and the second gas pipeline L2 is connected to the ammonia of the gas mixer 3 The gas inlet, the third gas pipeline L3 drawn from the mixed gas outlet of the gas mixer 3 is connected to the middle part of the flue 102 of the adsorption tower 1 (preferably, the ammonia injection point is located at its front end).
一般，解析塔2的上部加热区段201为壳管换热结构，其中加热气体走壳程，而活性炭走管程。下部冷却区段202也为壳管换热结构，其中冷却气体走壳程，而活性炭走管程。Generally, the upper heating section 201 of the desorption tower 2 is a shell-and-tube heat exchange structure, in which the heating gas goes through the shell side, and the activated carbon goes through the tube side. The lower cooling section 202 is also a shell-and-tube heat exchange structure, in which the cooling gas goes through the shell side, and the activated carbon goes through the tube side.
该第一氮气支路L4a输送氮气进入到下部冷却区段202的管程中。该第二氮气支路L4b输送氮气进入到上部加热区段201的管程中。The first nitrogen branch L4 a delivers nitrogen gas into the tube side of the lower cooling section 202 . The second nitrogen branch L4b delivers nitrogen gas into the tube side of the upper heating section 201 .
一般，在吸附塔1的活性炭料仓AC的上方的活性炭输送管道上设置两个旋转阀Vr。优选在这两个旋转阀Vr之间连接有氮气输送管，用于氮气密封、防止烟气泄漏。Generally, two rotary valves Vr are set on the activated carbon delivery pipeline above the activated carbon storage bin AC of the adsorption tower 1 . Preferably, a nitrogen delivery pipe is connected between the two rotary valves Vr for nitrogen sealing and preventing smoke leakage.
优选，在第一气体管道L1和第二气体管道L2的前端分别设置了第一气体阀门V1和第二气体阀门V2。Preferably, a first gas valve V1 and a second gas valve V2 are respectively provided at the front ends of the first gas pipeline L1 and the second gas pipeline L2.
一般，第一活性炭输送机4收集从吸附塔1的底部排出的、已经吸附了烟气的活性炭物料，然后输送到解析塔的顶部。Generally, the first activated carbon conveyor 4 collects the activated carbon material discharged from the bottom of the adsorption tower 1 and has absorbed flue gas, and then transports it to the top of the desorption tower.
第二活性炭输送机5收集从解析塔2排出的已经再生的活性炭，然后输送到吸附塔1的顶部料仓3中。The second activated carbon conveyor 5 collects the regenerated activated carbon discharged from the desorption tower 2, and then transports it to the top bin 3 of the adsorption tower 1.
解析塔2内通入氮气的主要作用：一是密封，二是做为SO2的载气。一般分四路(L4a、L4b、L4c或L4d)通入解析塔，其中包括解析塔冷却段下部的一路氮气L4a。一定量的氨气经由第一气体阀门和第一气体管道而进入解析塔冷却段下部的氮气管路L4a中，经氮气稀释后与冷却后的再生活性炭接触，氨气被活性炭预先吸附。另外一部分的氨气在气体混合器3中氨气经空气稀释至NH3浓度≤5vol％后变成稀释氨气，喷入烟道。烟道分三层，同样将吸附塔分为上部、中部、下部，稀释氨气喷入点位于烟道中部。解析塔冷却段下部AC吸附NH3后，经输送机移至吸附塔上部，与烟气接触，实现脱硫脱硝，同时导致活性炭吸附的氨逐渐被反应消耗掉，但此时活性炭仍有较强催化活性，为了强化脱硝效果，在吸附塔入口烟道中部加入稀释氨气；经过吸附塔中部的活性炭，催化活性炭已经很差了，为了避免氨气的浪费，在烟道下部无需喷入氨气。The main functions of introducing nitrogen into the analytical tower 2 are as follows: one is sealing, and the other is as a carrier gas for SO2 . Generally, four paths (L4a, L4b, L4c or L4d) lead to the desorption tower, including one path of nitrogen gas L4a in the lower part of the cooling section of the desorption tower. A certain amount of ammonia gas enters the nitrogen pipeline L4a at the lower part of the cooling section of the desorption tower through the first gas valve and the first gas pipeline. After being diluted with nitrogen, it contacts the cooled regenerated activated carbon, and the ammonia gas is pre-adsorbed by the activated carbon. Another part of the ammonia becomes diluted ammonia in the gas mixer 3 after the ammonia is diluted toNH concentration≤5vol%, and is sprayed into the flue. The flue is divided into three layers, and the adsorption tower is also divided into upper, middle, and lower parts. The injection point of diluted ammonia gas is located in the middle of the flue. After the AC adsorbsNH3 in the lower part of the cooling section of the desorption tower, it is moved to the upper part of the adsorption tower by the conveyor, and contacts with the flue gas to realize desulfurization and denitrification. At the same time, the ammonia adsorbed by the activated carbon is gradually consumed by the reaction, but the activated carbon still has a strong catalytic effect at this time. Activity, in order to strengthen the denitrification effect, dilute ammonia gas is added to the middle of the inlet flue of the adsorption tower; after passing through the activated carbon in the middle of the adsorption tower, the catalytic activated carbon is already very poor, in order to avoid the waste of ammonia, there is no need to inject ammonia into the lower part of the flue.
在本申请的所有脱硫脱硝系统中，一般，在解析塔的底部出料口的下方或下游采用装有筛网的振动筛。In all the desulfurization and denitrification systems of this application, generally, a vibrating screen equipped with a screen is used below or downstream of the bottom outlet of the desorption tower.
为了避免药片状的活性炭在筛网上的截留，本申请设计出具有长方形筛孔或长条形筛孔的筛网。该筛网可安装在振动筛上，筛选出满足脱硫脱硝装置的需要的活性炭颗粒。In order to avoid the interception of tablet-shaped activated carbon on the sieve, the applicant designs a sieve with a rectangular mesh or a strip mesh. The screen can be installed on the vibrating screen to screen out the activated carbon particles that meet the needs of the desulfurization and denitrification device.
因此，优选的是，提供一种具有长方形筛孔或长条形筛孔的筛网，该长方形筛孔的长度L≥3D，长方形筛孔的宽度a＝0.65h-0.95h(优选0.7h-0.9h，更优选0.73h-0.85h)，其中D是在筛网上所要截留的活性炭圆柱体的圆形横截面的直径，h是在筛网上所要截留的颗粒状活性炭圆柱体长度的最小值。Therefore, it is preferred to provide a screen cloth with a rectangular mesh or a strip mesh, the length of the rectangular mesh is L≥3D, the width a of the rectangular mesh is a=0.65h-0.95h (preferably 0.7h- 0.9h, more preferably 0.73h-0.85h), wherein D is the diameter of the circular cross-section of the activated carbon cylinder to be retained on the screen, and h is the minimum length of the granular activated carbon cylinder to be retained on the screen.
尤其，为了克服在脱硫脱硝装置中遇到的现有技术问题，一般要求活性炭圆柱体长度的最小值h为1.5mm-7mm。例如h＝2，4或6mm。In particular, in order to overcome the prior art problems encountered in desulfurization and denitrification devices, it is generally required that the minimum value h of the length of the activated carbon cylinder be 1.5mm-7mm. For example h=2, 4 or 6 mm.
D(或)取决于脱硫脱硝装置的具体要求。一般，优选5-9mm，更优选5.5-8.5mm，更优选6-8mm，例如6.5mm、7mm或7.5mm。D (or ) depends on the specific requirements of the desulfurization and denitrification device. generally, Preferably 5-9mm, more preferably 5.5-8.5mm, more preferably 6-8mm, eg 6.5mm, 7mm or 7.5mm.
实施例AExample A
如图5中所示，在脱硫脱硝装置中循环使用的成品活性炭的尺寸(筛网截留尺寸)要求为则设计一种筛网用于振动筛3的一层筛网中，其中长方形筛孔的宽度a和长度L为：5mm(宽度a)×27mm(长度L)。其中D是在筛网上所要截留的活性炭圆柱体的圆形横截面的直径，h是在筛网上所要截留的颗粒状活性炭圆柱体长度的最小值。a＝0.833h。As shown in Figure 5, the size (screen retention size) of the finished activated carbon recycled in the desulfurization and denitrification device is required to be Then design a kind of screen cloth to be used in the one deck screen cloth of vibrating screen 3, wherein the width a and the length L of the rectangular mesh are: 5mm (width a) * 27mm (length L). Wherein D is the diameter of the circular cross-section of the activated carbon cylinder to be retained on the screen, and h is the minimum length of the granular activated carbon cylinder to be retained on the screen. a=0.833h.
实施例BExample B
如图5中所示，在脱硫脱硝装置中循环使用的成品活性炭的尺寸(筛网截留尺寸)要求为则设计一种筛网用于振动筛3的一层筛网中，其中长方形筛孔的宽度a和长度L为：3mm(宽度a)×27mm(长度L)。其中D是在筛网上所要截留的颗粒状活性炭圆柱体的圆形横截面的直径。a＝0.75h。该筛孔尺寸的筛网用于截留中等粒径的活性炭。As shown in Figure 5, the size (screen retention size) of the finished activated carbon recycled in the desulfurization and denitrification device is required to be Then design a kind of screen cloth and be used in the one deck screen cloth of vibrating screen 3, wherein the width a and the length L of the rectangular screen hole are: 3mm (width a) * 27mm (length L). where D is the diameter of the circular cross-section of the granular activated carbon cylinder to be retained on the screen. a=0.75h. This mesh size screen is designed to retain medium particle size activated carbon.
实施例CExample C
如图5中所示，在脱硫脱硝装置中循环使用的成品活性炭的尺寸(筛网截留尺寸)要求为则设计一种筛网用于振动筛3的一层筛网中，其中长方形筛孔的宽度a和长度L为：1.6mm(宽度a)×16mm(长度L)。其中D是在筛网上所要截留的颗粒状活性炭圆柱体的圆形横截面的直径。a＝0.75h。As shown in Figure 5, the size (screen retention size) of the finished activated carbon recycled in the desulfurization and denitrification device is required to be Then design a kind of screen cloth to be used in one layer of screen cloth of vibrating screen 3, wherein the width a and the length L of rectangular mesh are: 1.6mm (width a) * 16mm (length L). where D is the diameter of the circular cross-section of the granular activated carbon cylinder to be retained on the screen. a=0.75h.
吸附塔一般具有至少2个活性炭料室。The adsorption tower generally has at least 2 activated carbon chambers.
优选的是，在吸附塔的每一个活性炭料室AC-c的底部具有一个圆辊给料机或排料圆辊G。一般，吸附塔具有至少两个活性炭料室AC-c。Preferably, there is a circular roller feeder or discharge circular roller G at the bottom of each activated carbon chamber AC-c of the adsorption tower. Generally, the adsorption tower has at least two activated carbon chambers AC-c.
对于这里所述的圆辊给料机或排料圆辊G，可以使用现有技术中的圆辊给料机或排料圆辊G，如图8和9中所示。但是，优选的是，代替圆辊给料机或排料圆辊G，可以使用一种新型的星轮式活性炭排料装置G，如图10中所示。新型的星轮式活性炭排料装置G包括：活性炭料室下部的前挡板AC-I和后挡板AC-II，和位于由活性炭料室下部的前挡板AC-I和后挡板AC-II和两个侧板所构成的排料口下方的星轮式活性炭排料辊G；其中星轮式活性炭排料辊G包括圆辊G01和沿着圆辊的圆周等角度分布或基本上等角度分布的多个叶片G02。更具体地说，在由活性炭料室下部的前挡板AC-I和后挡板AC-II和两个侧板所构成的排料口下方使用一种新型的星轮式活性炭排料辊G。也就是说，在下部的活性炭床层部分(A)的每一个料室的底部或在由活性炭料室下部的前挡板(AC-I)和后挡板(AC-II)和两个侧板所构成的排料口下方，装有星轮式活性炭排料辊(G)。For the drum feeder or discharge drum G described here, the drum feeder or discharge drum G in the prior art can be used, as shown in FIGS. 8 and 9 . However, preferably, instead of the roller feeder or the discharge roller G, a new star-wheel type activated carbon discharge device G can be used, as shown in FIG. 10 . The new star-wheel type activated carbon discharge device G includes: the front baffle AC-I and the rear baffle AC-II at the lower part of the activated carbon material chamber, and the front baffle AC-I and the rear baffle AC at the lower part of the activated carbon material chamber. -Star wheel type activated carbon discharge roller G below the discharge port formed by II and two side plates; wherein the star wheel type activated carbon discharge roller G includes a round roller G01 and is equiangularly distributed along the circumference of the round roller or basically A plurality of blades G02 distributed at equal angles. More specifically, a new type of star-wheel type activated carbon discharge roller G is used below the discharge port formed by the front baffle AC-I, the rear baffle AC-II and the two side panels in the lower part of the activated carbon chamber. . That is to say, at the bottom of each chamber of the activated carbon bed part (A) in the lower part or at the bottom of the front baffle (AC-I) and the rear baffle (AC-II) and the two sides of the lower part of the activated carbon chamber Below the discharge port formed by the plate, there is a star wheel activated carbon discharge roller (G).
从星轮式活性炭排料辊G的横截面上看，呈现星轮式构型或外形。Seen from the cross-section of the star wheel activated carbon discharge roller G, it presents a star wheel configuration or shape.
另外。新型的星轮式活性炭排料装置也可以简称星轮式活性炭排料辊G，或两者可互换使用。in addition. The new star-wheel type activated carbon discharge device can also be referred to as the star-wheel type activated carbon discharge roller G, or both can be used interchangeably.
星轮式活性炭下料装置主要由活性炭排料口的前挡板AC-I、后挡板AC-II和两个侧板与叶片G02和圆辊G01组成。前挡板和后挡板固定设置，前挡板和后挡板之间留有活性炭下料通道，即排料口，该排料口由前挡板AC-I、后挡板AC-II和两个侧板构成。圆辊设置在前挡板AC-I与后挡板AC-II的下端，叶片G02均布固定在圆辊G01上，圆辊G01由电机带动做回转运动，回转方向由后挡板AC-II向前挡板AC-I方向。叶片G02之间的夹角或间距不能过大，叶片之间的夹角θ一般设计为小于64°，例如12-64°，优选15-60°,优选20-55°，更优选25-50°，更优选30-45°。叶片与后挡板底端之间设计一间隙或间距s。该s一般取0.5-5mm，优选0.7-3mm，优选1-2mm。The star-wheel type activated carbon feeding device is mainly composed of the front baffle AC-I of the activated carbon discharge port, the rear baffle AC-II, two side panels, blades G02 and round rollers G01. The front baffle and the rear baffle are fixed, and there is an activated carbon discharge channel between the front baffle and the rear baffle, that is, the discharge port. The discharge port is composed of front baffle AC-I, rear baffle AC-II and Consists of two side panels. The round roller is set at the lower end of the front baffle AC-I and the rear baffle AC-II, and the blades G02 are uniformly fixed on the round roller G01. Forward the AC-I direction of the baffle. The included angle or spacing between the blades G02 cannot be too large, and the included angle θ between the blades is generally designed to be less than 64°, such as 12-64°, preferably 15-60°, preferably 20-55°, more preferably 25-50° °, more preferably 30-45 °. A gap or spacing s is designed between the blade and the bottom end of the tailgate. The s is generally 0.5-5mm, preferably 0.7-3mm, preferably 1-2mm.
星轮式活性炭排料辊G的外周半径(或圆辊上的叶片的外周旋转半径)是r。r是圆辊G01的横截面(圆)的半径+叶片G02的宽度。The outer circumference radius (or the outer circumference rotation radius of the blade on the round roll) of the star-wheel type activated carbon discharge roller G is r. r is the radius of the cross section (circle) of the round roller G01+the width of the blade G02.
一般，圆辊G01的横截面(圆)的半径是30-120mm，叶片G02的宽度是40-130mm。Generally, the radius of the cross section (circle) of the round roller G01 is 30-120 mm, and the width of the blade G02 is 40-130 mm.
圆辊中心与前挡板下端之间的距离为h，h一般要大于r+(12-30)mm，但小于r/sin58°，这样既能保证活性炭下料顺畅，又能保证圆辊不动时活性炭不自行滑落。The distance between the center of the round roller and the lower end of the front baffle is h, and h is generally greater than r+(12-30)mm, but less than r/sin58°, which can not only ensure smooth feeding of activated carbon, but also ensure that the round roller does not move Activated carbon does not slip off by itself.
一般，在本申请中，星轮式活性炭排料装置的排料口的横截面为正方形或长方形，优选为长度大于宽度的长方形(或矩形)。即，长度大于宽度的长方形(或矩形)。Generally, in this application, the cross-section of the discharge opening of the star wheel activated carbon discharge device is a square or a rectangle, preferably a rectangle (or rectangle) whose length is greater than its width. That is, a rectangle (or rectangle) whose length is greater than its width.
优选的是，在吸附塔的下料仓或底仓107具有一个或多个泄料旋转阀F。Preferably, there are one or more discharge rotary valves F in the lower silo or bottom silo 107 of the adsorption tower.
对于这里所述的旋转阀F，可以使用现有技术的旋转阀，如图8中所示。但是，优选的是，使用一种新型的旋转阀F，如图11-14所示。新型的旋转阀F包括：上部进料口F04，阀芯F01，叶片F02，阀壳F03，下部出料口F05，位于阀的内腔的上部空间的缓冲区F06，和平料板F07；其中缓冲区F06与进料口F04的下部空间相邻且彼此联通，缓冲区F06在水平方向上的横截面的长度大于进料口F04在水平方向上的横截面的长度；其中平料板设置于缓冲区F06内，平料板F07的上端固定在缓冲区F06的顶部，平料板F07在水平方向上的横截面呈现“V”形。For the rotary valve F described here, a prior art rotary valve as shown in FIG. 8 can be used. However, it is preferred to use a new type of rotary valve F, as shown in Figures 11-14. The new type of rotary valve F includes: upper feed port F04, valve core F01, vane F02, valve housing F03, lower discharge port F05, buffer zone F06 located in the upper space of the inner cavity of the valve, and flat plate F07; The area F06 is adjacent to the lower space of the feed port F04 and communicates with each other. The length of the cross section of the buffer zone F06 in the horizontal direction is greater than the length of the cross section of the feed port F04 in the horizontal direction; In the area F06, the upper end of the flat sheet F07 is fixed on the top of the buffer zone F06, and the horizontal cross section of the flat sheet F07 presents a "V" shape.
优选，上部进料口F04的横截面是长方形或矩形，而缓冲区F06的横截面是长方形或矩形。Preferably, the cross section of the upper feeding port F04 is rectangular or rectangular, and the cross section of the buffer zone F06 is rectangular or rectangular.
优选，缓冲区F06的横截面的长度小于叶片F02在水平方向上的横截面的长度。Preferably, the length of the cross-section of the buffer zone F06 is smaller than the length of the cross-section of the blade F02 in the horizontal direction.
优选，平料板F07是由两片单板(F0701,F0702)拼接而成，或者平料板F07是由一片板弯折成两个板面(F0701,F0702)。Preferably, the flat material board F07 is spliced by two veneers (F0701, F0702), or the flat material board F07 is bent from one board into two board surfaces (F0701, F0702).
优选，两片单板(F0701,F0702)或两个板面(F0701,F0702)的夹角2α≤120°，优选2α≤90°。因此，α≤60°，优选α≤45°。Preferably, the angle 2α≤120° between the two veneers (F0701, F0702) or the two panels (F0701, F0702), preferably 2α≤90°. Therefore, α≦60°, preferably α≦45°.
优选，每一个单板(F0701或F0702)或每一个板面(F0701或F0702)与缓冲区F06的长度方向之间的夹角Φ≥30°，优选，≥45°，更优选的是，Φ≥活性炭物料的摩擦角。Preferably, the angle between each single plate (F0701 or F0702) or each plate surface (F0701 or F0702) and the length direction of the buffer zone F06 is Φ≥30°, preferably ≥45°, more preferably, Φ ≥Friction angle of activated carbon material.
优选，两片单板(F0701,F0702)各自的底部或两个板面(F0701,F0702)各自的底部都呈现圆弧形。Preferably, the respective bottoms of the two veneers (F0701, F0702) or the respective bottoms of the two board surfaces (F0701, F0702) are arc-shaped.
优选，两片单板(F0701,F0702)或两个板面(F0701,F0702)之间的中心线段的长度等于或小于缓冲区F06在水平方向上的横截面的宽度。Preferably, the length of the central line segment between two veneers (F0701, F0702) or two board surfaces (F0701, F0702) is equal to or smaller than the width of the cross section of the buffer zone F06 in the horizontal direction.
显然，α+Φ＝90°。Obviously, α+Φ=90°.
一般，在本申请中，新型的旋转阀F的排料口F05的横截面为正方形或长方形，优选为长度大于宽度的长方形(或矩形)。即，长度大于宽度的长方形(或矩形)。Generally, in this application, the cross-section of the discharge port F05 of the novel rotary valve F is a square or a rectangle, preferably a rectangle (or rectangle) whose length is greater than its width. That is, a rectangle (or rectangle) whose length is greater than its width.
实施例1Example 1
一种高效脱硝的脱硫脱硝装置，该装置包括：吸附塔1，解析塔2，气体混合器3，第一活性炭输送机4，第二活性炭输送机5和在吸附塔1的上方设置的活性炭料仓AC，A high-efficiency denitrification desulfurization and denitrification device, the device includes: an adsorption tower 1, a desorption tower 2, a gas mixer 3, a first activated carbon conveyor 4, a second activated carbon conveyor 5 and an activated carbon material arranged above the adsorption tower 1 Bin AC,
其中吸附塔1在其一侧具有烟气入口A，在其另一侧具有烟气出口B，和Wherein adsorption tower 1 has flue gas inlet A on its one side, has flue gas outlet B on its other side, and
其中从气体混合器3的出气口引出的第一气体管道L1连接至活性炭料仓AC的进气口，从气体混合器3的出气口引出的第二气体管道L2连接至烟气入口A，从活性炭料仓AC的出气口引出的第三气体管道L3与第二气体管道L2汇合。Wherein the first gas pipeline L1 drawn from the gas outlet of the gas mixer 3 is connected to the air inlet of the activated carbon storage bin AC, and the second gas pipeline L2 drawn from the gas outlet of the gas mixer 3 is connected to the flue gas inlet A, from The third gas pipeline L3 drawn from the gas outlet of the activated carbon silo AC merges with the second gas pipeline L2.
吸附塔1具有两个活性炭料室AC-c，如图8所示。每一个料室AC-c的出料口装有圆辊给料机G。下料斗或底仓H的出料口装有旋转阀F。优选的是，解析塔2排料口的下方设有振动筛Sc，其中振动筛Sc装有实施例A的筛网，参见图2。The adsorption tower 1 has two activated carbon chambers AC-c, as shown in FIG. 8 . The discharge port of each material chamber AC-c is equipped with a round roller feeder G. The outlet of the lower hopper or the bottom bin H is equipped with a rotary valve F. Preferably, a vibrating sieve Sc is provided below the discharge port of the analysis tower 2, wherein the vibrating sieve Sc is equipped with the screen cloth of the embodiment A, referring to FIG. 2 .
实施例2Example 2
重复实施例1，只是烟气入口下游为烟道，在烟气入口下游的烟道分为三层，分别为烟道上部101、烟道中部102和烟道下部103，从气体混合器3的出气口引出的第二气体管道L2连接至烟气入口A烟道中部102。Repeat Example 1, except that the downstream of the flue gas inlet is a flue, and the flue downstream of the flue gas inlet is divided into three layers, which are respectively the upper part of the flue 101, the middle part of the flue 102 and the lower part of the flue 103, from the gas mixer 3 The second gas pipe L2 drawn from the gas outlet is connected to the middle part 102 of the flue gas inlet A flue.
实施例3Example 3
重复实施例2，只是在活性炭料仓AC的上方的活性炭输送管道上设置两个旋转阀Vr；优选在这两个旋转阀Vr之间连接有氮气输送管，用于氮气密封、防止烟气泄漏。在第一气体管道L1和第二气体管道L2的前端分别设置了第一气体阀门V1和第二气体阀门V2。Repeat Example 2, but two rotary valves Vr are set on the activated carbon delivery pipeline above the activated carbon silo AC; preferably, a nitrogen delivery pipe is connected between the two rotary valves Vr, for nitrogen sealing and preventing smoke leakage . A first gas valve V1 and a second gas valve V2 are respectively provided at the front ends of the first gas pipeline L1 and the second gas pipeline L2.
实施例4Example 4
重复实施例3，只是解析塔2的上方进料管上设有两个旋转阀Vr，解析塔2的上方进料管上的两个旋转阀Vr之间连接有氮气输送管；解析塔2的下方卸料管上设有的两个旋转阀Vr，在解析塔2的下方卸料管上的两个旋转阀Vr之间连接有氮气输送管。Repeat embodiment 3, just be provided with two rotary valves Vr on the top feed pipe of analysis tower 2, be connected with nitrogen delivery pipe between the two rotary valves Vr on the top feed pipe of analysis tower 2; The two rotary valves Vr provided on the discharge pipe below are connected with a nitrogen delivery pipe between the two rotary valves Vr on the discharge pipe below the desorption tower 2 .
实施例5Example 5
一种高效脱硝的脱硫脱硝装置，该装置包括：吸附塔1，解析塔2，气体混合器3，第一活性炭输送机4，第二活性炭输送机5和在吸附塔1的上方设置的活性炭料仓AC，A high-efficiency denitrification desulfurization and denitrification device, the device includes: an adsorption tower 1, a desorption tower 2, a gas mixer 3, a first activated carbon conveyor 4, a second activated carbon conveyor 5 and an activated carbon material arranged above the adsorption tower 1 Bin AC,
其中吸附塔1在其一侧具有烟气入口A，在其另一侧具有烟气出口B，Wherein the adsorption tower 1 has a flue gas inlet A on one side thereof and a flue gas outlet B on its other side,
其中解析塔2配有氮气输送管L4，该氮气输送管L4具有四个支路即第一氮气支路L4a、第二氮气支路L4b、第三氮气支路L4c和第四氮气支路L4d，该第一氮气支路L4a连接至解析塔2的下部冷却区段202，该第二氮气支路L4b连接至解析塔2的上部加热区段201，该第三氮气支路L4c连接至解析塔2的上方进料管上的两个旋转阀Vr之间，该第四氮气支路L4d连接至解析塔2的下方卸料管上的两个旋转阀Vr之间；和Wherein the analytical tower 2 is equipped with a nitrogen delivery pipe L4, and the nitrogen delivery pipe L4 has four branches, namely the first nitrogen branch L4a, the second nitrogen branch L4b, the third nitrogen branch L4c and the fourth nitrogen branch L4d, The first nitrogen branch L4a is connected to the lower cooling section 202 of the desorption tower 2, the second nitrogen branch L4b is connected to the upper heating section 201 of the desorption tower 2, and the third nitrogen branch L4c is connected to the desorption tower 2 Between the two rotary valves Vr on the upper feed pipe of the above, the fourth nitrogen branch L4d is connected between the two rotary valves Vr on the lower discharge pipe of the desorption tower 2; and
其中氨气输送管被分成两路即第一气体管道L1和第二气体管道L2，该第一气体管道L1连接至第一氮气支路L4a，第二气体管道L2连接至气体混合器3的氨气进口，从气体混合器3的混合气体出口引出的第三气体管道L3连通至吸附塔1的烟气入口A。Wherein the ammonia delivery pipe is divided into two paths, namely the first gas pipeline L1 and the second gas pipeline L2, the first gas pipeline L1 is connected to the first nitrogen branch L4a, and the second gas pipeline L2 is connected to the ammonia of the gas mixer 3 The third gas pipeline L3 drawn from the mixed gas outlet of the gas mixer 3 is connected to the flue gas inlet A of the adsorption tower 1 .
吸附塔1具有两个活性炭料室AC-c，如图8所示。每一个料室AC-c的出料口装有圆辊给料机G。下料斗或底仓H的出料口装有旋转阀F。优选的是，解析塔2排料口的下方设有振动筛Sc，其中振动筛Sc装有实施例A的筛网，参见图2。The adsorption tower 1 has two activated carbon chambers AC-c, as shown in FIG. 8 . The discharge port of each material chamber AC-c is equipped with a round roller feeder G. The outlet of the lower hopper or the bottom bin H is equipped with a rotary valve F. Preferably, a vibrating sieve Sc is provided below the discharge port of the analysis tower 2, wherein the vibrating sieve Sc is equipped with the screen cloth of the embodiment A, referring to FIG. 2 .
实施例6Example 6
重复实施例5，只是烟气入口A下游为烟道，在烟气入口A下游的烟道分为三层，分别为烟道上部101、烟道中部102和烟道下部103，从气体混合器3的出气口引出的第二气体管道L2连接至烟气入口A烟道中部102和连接至烟道上部101。Repeat Example 5, except that the downstream of the flue gas inlet A is a flue, and the flue downstream of the flue gas inlet A is divided into three layers, which are respectively the upper part of the flue 101, the middle part of the flue 102 and the lower part of the flue 103, from the gas mixer The second gas pipe L2 drawn from the gas outlet of 3 is connected to the middle part 102 of the flue gas inlet A and connected to the upper part 101 of the flue.
实施例7Example 7
重复实施例6，只是解析塔2的上部加热区段201为壳管换热结构，其中加热气体走壳程，而活性炭走管程，下部冷却区段202也为壳管换热结构，其中冷却气体走壳程，而活性炭走管程；Repeat embodiment 6, only the upper heating section 201 of the desorption tower 2 is a shell-and-tube heat exchange structure, wherein the heating gas walks the shell side, and the activated carbon walks the tube side, and the lower cooling section 202 is also a shell-and-tube heat exchange structure, wherein the cooling The gas goes through the shell side, while the activated carbon goes through the tube side;
该第一氮气支路L4a输送氮气进入到下部冷却区段202的管程中。该第二氮气支路L4b输送氮气进入到上部加热区段201的管程中；The first nitrogen branch L4 a delivers nitrogen gas into the tube side of the lower cooling section 202 . The second nitrogen branch L4b transports nitrogen into the tube side of the upper heating section 201;
在吸附塔1的活性炭料仓AC的上方的活性炭输送管道上设置两个旋转阀Vr；优选在这两个旋转阀Vr之间连接有氮气输送管，用于氮气密封、防止烟气泄漏。Two rotary valves Vr are arranged on the activated carbon delivery pipeline above the activated carbon storage bin AC of the adsorption tower 1; preferably, a nitrogen delivery pipe is connected between the two rotary valves Vr for nitrogen sealing and preventing flue gas leakage.
实施例8Example 8
重复实施例7，只是在第一气体管道L1和第二气体管道L2的前端分别设置了第一气体阀门V1和第二气体阀门V2；解析塔2的上方进料管上设有两个旋转阀Vr，解析塔2的上方进料管上的两个旋转阀Vr之间连接有氮气输送管。Repeat embodiment 7, just be respectively provided with first gas valve V1 and the second gas valve V2 at the front end of the first gas pipeline L1 and the second gas pipeline L2; The top feed pipe of desorption tower 2 is provided with two rotary valves Vr, a nitrogen delivery pipe is connected between the two rotary valves Vr on the feed pipe above the analytical tower 2.
在上述实施例中，通过使用装有特定的筛网的振动筛代替在解析塔2排料口的下方的普通振动筛，消除了药片活性炭发生架桥现象，筛下除去了耐磨耐压强度均很低的药片状活性炭，避免在脱硫脱硝装置中产生碎片和粉尘，减少活性炭移动阻力，降低了吸附塔内活性炭高温燃烧风险，让高强度的活性炭在装置中的再循环、减少振动筛筛下料和降低运行费用。In the foregoing embodiment, by using a vibrating screen equipped with a specific screen to replace the common vibrating screen below the discharge port of the analysis tower 2, the bridging phenomenon of the tablet activated carbon is eliminated, and the wear-resistant compressive strength is removed under the screen. The tablet-shaped activated carbon with a very low average can avoid the generation of debris and dust in the desulfurization and denitrification device, reduce the resistance of activated carbon to move, reduce the risk of high-temperature combustion of activated carbon in the adsorption tower, and allow the recirculation of high-strength activated carbon in the device to reduce vibration. Undersize and reduce operating costs.
实施例9Example 9
重复实施例1，只是代替排料圆辊G，而使用一种新型的星轮式活性炭排料装置，如图10所示。在一个活性炭料室的底部设置1个排料口。排料口由前挡板AC-I和后挡板AC-II和两个侧板(图中未示出)构成。Repeat Example 1, but instead of the discharge round roller G, a new type of star wheel activated carbon discharge device is used, as shown in FIG. 10 . A discharge opening is arranged at the bottom of an activated carbon material chamber. The discharge opening is made of front baffle AC-I, rear baffle AC-II and two side panels (not shown).
吸附塔的主体结构的高度是21m(米)。吸附塔1具有2个活性炭料室。其中处于左边的第一料室的厚度是180mm。处于右边的第二料室的厚度是900mm。The height of the main structure of the adsorption tower is 21 m (meter). The adsorption tower 1 has two activated carbon chambers. Wherein the thickness of the first feed chamber on the left is 180mm. The thickness of the second chamber on the right is 900 mm.
星轮式活性炭排料装置包括：活性炭料室下部的前挡板AC-I和后挡板AC-II，和位于由活性炭料室下部的前挡板AC-I和后挡板AC-II和两个侧板所构成的排料口下方的星轮式活性炭排料辊G；其中星轮式活性炭排料辊G包括圆辊G01和沿着圆辊的圆周等角度(θ＝30°)分布的12个叶片G02。The star wheel activated carbon discharge device includes: the front baffle AC-I and the rear baffle AC-II at the lower part of the activated carbon material chamber, and the front baffle AC-I and the rear baffle AC-II at the lower part of the activated carbon material chamber. The star-wheel activated carbon discharge roller G below the discharge port formed by the two side plates; wherein the star-wheel activated carbon discharge roller G includes a round roller G01 and is distributed at an equal angle (θ=30°) along the circumference of the round roller of 12 blades G02.
从星轮式活性炭排料辊G的横截面上看，呈现星轮式构型。Seen from the cross-section of the star-wheel type activated carbon discharge roller G, it presents a star-wheel configuration.
该排料口由前挡板AC-I、后挡板AC-II和两个侧板构成。圆辊设置在前挡板AC-I与后挡板AC-II的下端，叶片G02均布固定在圆辊G01上，圆辊G01由电机带动做回转运动，回转方向由后挡板AC-II向前挡板AC-I方向。叶片G02之间的夹角θ为30°。叶片与后挡板底端之间设计一间隙或间距s。该s取2mm。The discharge port is composed of front apron AC-I, rear apron AC-II and two side panels. The round roller is set at the lower end of the front baffle AC-I and the rear baffle AC-II, and the blades G02 are uniformly fixed on the round roller G01. Forward the AC-I direction of the baffle. The angle θ between the blades G02 is 30°. A gap or spacing s is designed between the blade and the bottom end of the tailgate. The s is taken as 2mm.
星轮式活性炭排料辊G的外周半径(或圆辊上的叶片的外周旋转半径)是r。r是圆辊G01的横截面(圆)的半径+叶片G02的宽度。The outer circumference radius (or the outer circumference rotation radius of the blade on the round roll) of the star-wheel type activated carbon discharge roller G is r. r is the radius of the cross section (circle) of the round roller G01+the width of the blade G02.
圆辊G01的横截面(圆)的半径是60mm，叶片G02的宽度是100mm。The radius of the cross section (circle) of the round roller G01 is 60 mm, and the width of the blade G02 is 100 mm.
圆辊中心与前挡板下端之间的距离为h，h一般要大于r+(12-30)mm，但小于r/sin58°，这样既能保证活性炭下料顺畅，又能保证圆辊不动时活性炭不自行滑落。The distance between the center of the round roller and the lower end of the front baffle is h, and h is generally greater than r+(12-30)mm, but less than r/sin58°, which can not only ensure smooth feeding of activated carbon, but also ensure that the round roller does not move Activated carbon does not slip off by itself.
实施例10Example 10
重复实施例2，只是代替排料圆辊G，而使用一种新型的星轮式活性炭排料装置，如图10所示。在一个活性炭料室的底部设置1个排料口。排料口由前挡板AC-I和后挡板AC-II和两个侧板(图中未示出)构成。Repeat Example 2, except that instead of the discharge circular roller G, a new type of star wheel activated carbon discharge device is used, as shown in FIG. 10 . A discharge opening is arranged at the bottom of an activated carbon material chamber. The discharge opening is made of front baffle AC-I, rear baffle AC-II and two side panels (not shown).
吸附塔的主体结构的高度是21m(米)。左边的第一料室的厚度是160mm。右边的第二料室的厚度是1000mm。The height of the main structure of the adsorption tower is 21 m (meter). The thickness of the first chamber on the left is 160mm. The thickness of the second chamber on the right is 1000mm.
星轮式活性炭排料装置包括：活性炭料室下部的前挡板AC-I和后挡板AC-II，和位于由活性炭料室下部的前挡板AC-I和后挡板AC-II和两个侧板所构成的排料口下方的星轮式活性炭排料辊G；其中星轮式活性炭排料辊G包括圆辊G01和沿着圆辊的圆周等角度(θ＝45°)分布的8个叶片G02。The star wheel activated carbon discharge device includes: the front baffle AC-I and the rear baffle AC-II at the lower part of the activated carbon material chamber, and the front baffle AC-I and the rear baffle AC-II at the lower part of the activated carbon material chamber. The star-wheel activated carbon discharge roller G below the discharge port formed by the two side plates; wherein the star-wheel activated carbon discharge roller G includes a round roller G01 and is distributed at an equal angle (θ=45°) along the circumference of the round roller The 8 blades of G02.
从星轮式活性炭排料辊G的横截面上看，呈现星轮式构型。Seen from the cross-section of the star-wheel type activated carbon discharge roller G, it presents a star-wheel configuration.
该排料口由前挡板AC-I、后挡板AC-II和两个侧板构成。圆辊设置在前挡板AC-I与后挡板AC-II的下端，叶片G02均布固定在圆辊G01上，圆辊G01由电机带动做回转运动，回转方向由后挡板AC-II向前挡板AC-I方向。叶片G02之间的夹角θ为45°。叶片与后挡板底端之间设计一间隙或间距s。该s取1mm。The discharge port is composed of front apron AC-I, rear apron AC-II and two side panels. The round roller is set at the lower end of the front baffle AC-I and the rear baffle AC-II, and the blades G02 are uniformly fixed on the round roller G01. Forward the AC-I direction of the baffle. The angle θ between the blades G02 is 45°. A gap or spacing s is designed between the blade and the bottom end of the tailgate. The s is taken as 1mm.
星轮式活性炭排料辊G的外周半径是r。r是圆辊G01的横截面(圆)的半径+叶片G02的宽度。The outer circumference radius of the star wheel activated carbon discharge roller G is r. r is the radius of the cross section (circle) of the round roller G01+the width of the blade G02.
圆辊G01的横截面(圆)的半径是90mm，叶片G02的宽度是70mm。The radius of the cross section (circle) of the round roller G01 is 90 mm, and the width of the blade G02 is 70 mm.
圆辊中心与前挡板下端之间的距离为h，h一般要大于r+(12-30)mm，但小于r/sin58°，这样既能保证活性炭下料顺畅，又能保证圆辊不动时活性炭不自行滑落。The distance between the center of the round roller and the lower end of the front baffle is h, and h is generally greater than r+(12-30)mm, but less than r/sin58°, which can not only ensure smooth feeding of activated carbon, but also ensure that the round roller does not move Activated carbon does not slip off by itself.
实施例11Example 11
重复实施例2，只是代替普通的泄料旋转阀F，而使用一种新型的泄料旋转阀F，如图11-14所示。Example 2 is repeated, except that instead of the common discharge rotary valve F, a new type of discharge rotary valve F is used, as shown in Figures 11-14.
新型的旋转阀F包括：上部进料口F04，阀芯F01，叶片F02，阀壳F03，下部出料口F05，位于阀的内腔的上部空间的缓冲区F06，和平料板F07。其中缓冲区F06与进料口F04的下部空间相邻且彼此联通，缓冲区F06在水平方向上的横截面的长度大于进料口F04在水平方向上的横截面的长度；其中平料板设置于缓冲区F06内，平料板F07的上端固定在缓冲区F06的顶部，平料板F07在水平方向上的横截面呈现“V”形。The new rotary valve F includes: upper feed port F04, valve core F01, blade F02, valve housing F03, lower discharge port F05, buffer zone F06 located in the upper space of the inner cavity of the valve, and flat plate F07. Wherein the buffer zone F06 is adjacent to the lower space of the feed port F04 and communicates with each other, the length of the cross section of the buffer zone F06 in the horizontal direction is greater than the length of the cross section of the feed port F04 in the horizontal direction; wherein the flat material plate is set In the buffer zone F06, the upper end of the flat material plate F07 is fixed on the top of the buffer zone F06, and the horizontal cross section of the flat material plate F07 presents a “V” shape.
上部进料口F04的横截面是长方形，而缓冲区F06的横截面也是长方形。The cross section of the upper feed port F04 is rectangular, and the cross section of the buffer zone F06 is also rectangular.
缓冲区F06的横截面的长度小于叶片F02在水平方向上的横截面的长度。The length of the cross section of the buffer zone F06 is smaller than the length of the cross section of the blade F02 in the horizontal direction.
平料板F07是由两片单板(F0701,F0702)拼接而成。Flat sheet F07 is spliced by two veneers (F0701, F0702).
两片单板(F0701,F0702)的夹角2α为90°。The angle 2α between the two veneers (F0701, F0702) is 90°.
优选，每一个单板(F0701或F0702)或每一个板面(F0701或F0702)与缓冲区F06的长度方向之间的夹角Φ为30°。确保Φ大于活性炭物料的摩擦角。Preferably, the angle Φ between each single plate (F0701 or F0702) or each plate surface (F0701 or F0702) and the length direction of the buffer zone F06 is 30°. Make sure that Φ is greater than the friction angle of the activated carbon material.
两片单板(F0701,F0702)各自的底部都呈现圆弧形。The respective bottoms of the two veneers (F0701, F0702) are arc-shaped.
两片单板(F0701,F0702)或两个板面(F0701,F0702)之间的中心线段的长度稍小于缓冲区F06在水平方向上的横截面的宽度。The length of the center line segment between two veneers (F0701, F0702) or two board surfaces (F0701, F0702) is slightly smaller than the width of the cross-section of the buffer zone F06 in the horizontal direction.
α+Φ＝90°。α+Φ=90°.
旋转阀的叶片的外周旋转半径是r。r是阀芯F01的横截面(圆)的半径+叶片F02的宽度。The radius of rotation of the blades of the rotary valve is r. r is the radius of the cross section (circle) of the spool F01 + the width of the vane F02.
阀芯F01)的横截面(圆)的半径是30mm，叶片F02的宽度是100mm。即，r是130mm。The radius of the cross section (circle) of the spool F01) is 30 mm, and the width of the blade F02 is 100 mm. That is, r is 130mm.
叶片F02的长度是380mm。The length of the blade F02 is 380mm.
实施例12Example 12
重复实施例10，只是代替普通的泄料旋转阀F，而使用一种新型的泄料旋转阀F，如图11-14所示。Example 10 is repeated, except that instead of the common discharge rotary valve F, a new type of discharge rotary valve F is used, as shown in Figures 11-14.
旋转阀F包括：上部进料口F04，阀芯F01，叶片F02，阀壳F03，下部出料口F05，位于阀的内腔的上部空间的缓冲区F06，和平料板F07。其中缓冲区F06与进料口F04的下部空间相邻且彼此联通，缓冲区F06在水平方向上的横截面的长度大于进料口F04在水平方向上的横截面的长度；其中平料板设置于缓冲区F06内，平料板F07的上端固定在缓冲区F06的顶部，平料板F07在水平方向上的横截面呈现“V”形。The rotary valve F includes: an upper feed port F04, a valve core F01, a blade F02, a valve housing F03, a lower discharge port F05, a buffer zone F06 located in the upper space of the inner cavity of the valve, and a flat plate F07. Wherein the buffer zone F06 is adjacent to the lower space of the feed port F04 and communicates with each other, the length of the cross section of the buffer zone F06 in the horizontal direction is greater than the length of the cross section of the feed port F04 in the horizontal direction; wherein the flat material plate is set In the buffer zone F06, the upper end of the flat material plate F07 is fixed on the top of the buffer zone F06, and the horizontal cross section of the flat material plate F07 presents a “V” shape.
上部进料口F04的横截面是长方形，而缓冲区F06的横截面也是长方形。The cross section of the upper feed port F04 is rectangular, and the cross section of the buffer zone F06 is also rectangular.
缓冲区F06的横截面的长度小于叶片F02在水平方向上的横截面的长度。The length of the cross section of the buffer zone F06 is smaller than the length of the cross section of the blade F02 in the horizontal direction.
平料板F07是由两片单板(F0701,F0702)拼接而成。Flat sheet F07 is spliced by two veneers (F0701, F0702).
两片单板(F0701,F0702)的夹角2α为90°。The angle 2α between the two veneers (F0701, F0702) is 90°.
优选，每一个单板(F0701或F0702)或每一个板面(F0701或F0702)与缓冲区F06的长度方向之间的夹角Φ为30°。确保Φ大于活性炭物料的摩擦角。Preferably, the angle Φ between each single plate (F0701 or F0702) or each plate surface (F0701 or F0702) and the length direction of the buffer zone F06 is 30°. Make sure that Φ is greater than the friction angle of the activated carbon material.
两片单板(F0701,F0702)各自的底部都呈现圆弧形。The respective bottoms of the two veneers (F0701, F0702) are arc-shaped.
两片单板(F0701,F0702)或两个板面(F0701,F0702)之间的中心线段的长度稍小于缓冲区F06在水平方向上的横截面的宽度。The length of the center line segment between two veneers (F0701, F0702) or two board surfaces (F0701, F0702) is slightly smaller than the width of the cross-section of the buffer zone F06 in the horizontal direction.
α+Φ＝90°。α+Φ=90°.
旋转阀的叶片的外周旋转半径是r。r是阀芯F01的横截面(圆)的半径+叶片F02的宽度。The radius of rotation of the blades of the rotary valve is r. r is the radius of the cross section (circle) of the spool F01 + the width of the vane F02.
阀芯F01)的横截面(圆)的半径是30mm，叶片F02的宽度是100mm。即，r是130mm。The radius of the cross section (circle) of the spool F01) is 30 mm, and the width of the blade F02 is 100 mm. That is, r is 130mm.
叶片F02的长度是380mm。The length of the blade F02 is 380mm.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810305906.2ACN108371872B (en) | 2018-04-08 | 2018-04-08 | High-efficiency denitrification desulfurization and denitrification device |
| KR1020207023074AKR102422222B1 (en) | 2018-04-08 | 2018-12-17 | Desulfurization and denitration device with high denitrification efficiency |
| PCT/CN2018/121452WO2019196486A1 (en) | 2018-04-08 | 2018-12-17 | Desulfurization and denitration device having high-efficiency denitration |
| BR112020016922-6ABR112020016922B1 (en) | 2018-04-08 | 2018-12-17 | DESULFURIZATION AND DENITRIFICATION DEVICE WITH HIGH EFFICIENCY DENITRIFICATION |
| MYPI2020003706AMY205899A (en) | 2018-04-08 | 2018-12-17 | Desulfurization and denitration device having high-efficiency denitration |
| RU2020127249ARU2760553C1 (en) | 2018-04-08 | 2018-12-17 | Desulphurisation and denitration apparatus exhibiting high efficiency |
| PH12020551257APH12020551257A1 (en) | 2018-04-08 | 2020-08-17 | Desulfurization and denitration device having high-efficiency denitration |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810305906.2ACN108371872B (en) | 2018-04-08 | 2018-04-08 | High-efficiency denitrification desulfurization and denitrification device |
| Publication Number | Publication Date |
|---|---|
| CN108371872Atrue CN108371872A (en) | 2018-08-07 |
| CN108371872B CN108371872B (en) | 2023-07-25 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810305906.2AActiveCN108371872B (en) | 2018-04-08 | 2018-04-08 | High-efficiency denitrification desulfurization and denitrification device |
| Country | Link |
|---|---|
| KR (1) | KR102422222B1 (en) |
| CN (1) | CN108371872B (en) |
| MY (1) | MY205899A (en) |
| PH (1) | PH12020551257A1 (en) |
| RU (1) | RU2760553C1 (en) |
| WO (1) | WO2019196486A1 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110075664A (en)* | 2019-06-12 | 2019-08-02 | 中冶北方（大连）工程技术有限公司 | Gas column type activated coke regeneration gas air seal set |
| CN110201527A (en)* | 2019-07-08 | 2019-09-06 | 北京中航泰达环保科技股份有限公司 | A kind of pre- spray ammonia system and technique of active carbon desulfurization denitration |
| WO2019196486A1 (en)* | 2018-04-08 | 2019-10-17 | 中冶长天国际工程有限责任公司 | Desulfurization and denitration device having high-efficiency denitration |
| CN110559851A (en)* | 2019-09-30 | 2019-12-13 | 中冶东方工程技术有限公司 | Ultra-low temperature modularization flue gas denitration system |
| CN110856791A (en)* | 2018-08-23 | 2020-03-03 | 中国石化工程建设有限公司 | Active coke desulfurization and denitrification adsorption tower, and system and method for adsorbing and purifying flue gas by using active coke |
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| CN111841240A (en)* | 2019-04-26 | 2020-10-30 | 英特佳工程与环境技术有限公司 | Container and method for loading ammonia gas into adsorbent and/or absorbent |
| CN112275129A (en)* | 2020-09-04 | 2021-01-29 | 山西太钢工程技术有限公司 | Flue gas emission treatment method and equipment |
| CN116510482A (en)* | 2023-04-25 | 2023-08-01 | 河钢集团有限公司 | Counter-flow type activated carbon denitration device and control method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| KR102542967B1 (en)* | 2021-07-07 | 2023-06-14 | 한국에너지기술연구원 | Continuous Direct Air Capture system and Method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6071029A (en)* | 1983-09-28 | 1985-04-22 | Kawasaki Heavy Ind Ltd | How to simultaneously remove sulfur oxides and nitrogen oxides |
| JPH05220338A (en)* | 1991-03-12 | 1993-08-31 | Sumitomo Heavy Ind Ltd | Treating equipment for exhaust gas of refuse incinerator |
| JPH08155299A (en)* | 1994-11-30 | 1996-06-18 | Sumitomo Heavy Ind Ltd | Enhancement of desulfurizing and denitrating capacity of carbonaceous catalyst |
| JP2003290624A (en)* | 2002-04-03 | 2003-10-14 | Sumitomo Heavy Ind Ltd | Exhaust gas treatment method, exhaust gas treatment apparatus, gas treatment method and gas treatment apparatus |
| US20110195003A1 (en)* | 2010-02-04 | 2011-08-11 | Ada Environmental Solutions, Llc | Method and system for controlling mercury emissions from coal-fired thermal processes |
| CN102824809A (en)* | 2012-09-21 | 2012-12-19 | 中冶长天国际工程有限责任公司 | Adsorption tower |
| CN104107629A (en)* | 2014-08-04 | 2014-10-22 | 上海龙净环保科技工程有限公司 | System and method for capturing carbon dioxide in smoke |
| CN105056711A (en)* | 2015-08-21 | 2015-11-18 | 马鞍山艺诚机电有限公司 | Multi-stage nested absorption-analysis citrate process for purifying SO2 in smoke |
| CN105080332A (en)* | 2015-07-24 | 2015-11-25 | 中冶华天工程技术有限公司 | Resource utilization system for pellet sintering waste gas and method |
| CN105233673A (en)* | 2015-11-12 | 2016-01-13 | 国电科学技术研究院 | Carbon-based catalyst desulfurization and denitrification system and method |
| CN205145970U (en)* | 2015-11-12 | 2016-04-13 | 国电科学技术研究院 | Charcoal base catalyst SOx/NOx control system |
| KR20160070914A (en)* | 2014-12-10 | 2016-06-21 | 재단법인 포항산업과학연구원 | Method for absorbing carbon dixoxide from flue gas and apparatus for absorbing carbon dioxide using the same |
| CN105688622A (en)* | 2014-11-28 | 2016-06-22 | 中冶长天国际工程有限责任公司 | A flue gas desulphurization denitration method adopting two adsorption columns in series connection and a device therefor |
| CN205627632U (en)* | 2016-05-12 | 2016-10-12 | 西安西热锅炉环保工程有限公司 | High performance SCR minimum discharge control system based on subregion mixes to be adjusted |
| CN107469561A (en)* | 2017-09-19 | 2017-12-15 | 中国科学院过程工程研究所 | A kind of gas cleaning absorption tower and its processing method |
| WO2018028243A1 (en)* | 2016-08-08 | 2018-02-15 | 中冶长天国际工程有限责任公司 | Ammonia injection amount control method and apparatus for activated carbon desulfurization and denitration system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5940052B2 (en)* | 1980-06-16 | 1984-09-27 | 株式会社荏原製作所 | Electron beam multistage irradiation exhaust gas desulfurization and denitrification method and equipment |
| RU2006268C1 (en)* | 1991-10-24 | 1994-01-30 | Государственное предприятие - Научно-исследовательский и проектно-изыскательский институт "Теплоэлектропроект" | Method of purifying gases from sulfur- and nitrogen-oxides |
| JP3361200B2 (en)* | 1994-12-12 | 2003-01-07 | 日本原子力研究所 | Exhaust gas treatment method and equipment for electron beam irradiation |
| JP3725013B2 (en)* | 2000-08-25 | 2005-12-07 | 住友重機械工業株式会社 | Medium regeneration tower, medium regeneration method, exhaust gas treatment device, and exhaust gas treatment method |
| JP5319934B2 (en)* | 2008-02-28 | 2013-10-16 | 三菱重工業株式会社 | Exhaust gas treatment method and apparatus |
| CN101732948B (en)* | 2009-12-31 | 2012-10-03 | 中电投远达环保工程有限公司 | Three-stage integrated treatment system and method for purification and regeneration of activated coke flue gas |
| CN105214457B (en)* | 2014-06-05 | 2018-04-17 | 魏雄辉 | A kind of fume desulfuring and denitrifying Processes and apparatus |
| CN105727708B (en)* | 2016-02-29 | 2018-08-03 | 中国科学院过程工程研究所 | A kind of multicompartment fluidized bed two-part activated carbon/coke flue gas and desulfurizing and denitrifying system and method |
| CN107551757A (en)* | 2016-06-30 | 2018-01-09 | 中冶长天国际工程有限责任公司 | A kind of flue gas desulfurization and denitration method and device |
| CN108371872B (en)* | 2018-04-08 | 2023-07-25 | 中冶长天国际工程有限责任公司 | High-efficiency denitrification desulfurization and denitrification device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6071029A (en)* | 1983-09-28 | 1985-04-22 | Kawasaki Heavy Ind Ltd | How to simultaneously remove sulfur oxides and nitrogen oxides |
| JPH05220338A (en)* | 1991-03-12 | 1993-08-31 | Sumitomo Heavy Ind Ltd | Treating equipment for exhaust gas of refuse incinerator |
| JPH08155299A (en)* | 1994-11-30 | 1996-06-18 | Sumitomo Heavy Ind Ltd | Enhancement of desulfurizing and denitrating capacity of carbonaceous catalyst |
| JP2003290624A (en)* | 2002-04-03 | 2003-10-14 | Sumitomo Heavy Ind Ltd | Exhaust gas treatment method, exhaust gas treatment apparatus, gas treatment method and gas treatment apparatus |
| US20110195003A1 (en)* | 2010-02-04 | 2011-08-11 | Ada Environmental Solutions, Llc | Method and system for controlling mercury emissions from coal-fired thermal processes |
| CN102824809A (en)* | 2012-09-21 | 2012-12-19 | 中冶长天国际工程有限责任公司 | Adsorption tower |
| CN104107629A (en)* | 2014-08-04 | 2014-10-22 | 上海龙净环保科技工程有限公司 | System and method for capturing carbon dioxide in smoke |
| CN105688622A (en)* | 2014-11-28 | 2016-06-22 | 中冶长天国际工程有限责任公司 | A flue gas desulphurization denitration method adopting two adsorption columns in series connection and a device therefor |
| KR20160070914A (en)* | 2014-12-10 | 2016-06-21 | 재단법인 포항산업과학연구원 | Method for absorbing carbon dixoxide from flue gas and apparatus for absorbing carbon dioxide using the same |
| CN105080332A (en)* | 2015-07-24 | 2015-11-25 | 中冶华天工程技术有限公司 | Resource utilization system for pellet sintering waste gas and method |
| CN105056711A (en)* | 2015-08-21 | 2015-11-18 | 马鞍山艺诚机电有限公司 | Multi-stage nested absorption-analysis citrate process for purifying SO2 in smoke |
| CN105233673A (en)* | 2015-11-12 | 2016-01-13 | 国电科学技术研究院 | Carbon-based catalyst desulfurization and denitrification system and method |
| CN205145970U (en)* | 2015-11-12 | 2016-04-13 | 国电科学技术研究院 | Charcoal base catalyst SOx/NOx control system |
| CN205627632U (en)* | 2016-05-12 | 2016-10-12 | 西安西热锅炉环保工程有限公司 | High performance SCR minimum discharge control system based on subregion mixes to be adjusted |
| WO2018028243A1 (en)* | 2016-08-08 | 2018-02-15 | 中冶长天国际工程有限责任公司 | Ammonia injection amount control method and apparatus for activated carbon desulfurization and denitration system |
| CN107469561A (en)* | 2017-09-19 | 2017-12-15 | 中国科学院过程工程研究所 | A kind of gas cleaning absorption tower and its processing method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019196486A1 (en)* | 2018-04-08 | 2019-10-17 | 中冶长天国际工程有限责任公司 | Desulfurization and denitration device having high-efficiency denitration |
| CN110856791A (en)* | 2018-08-23 | 2020-03-03 | 中国石化工程建设有限公司 | Active coke desulfurization and denitrification adsorption tower, and system and method for adsorbing and purifying flue gas by using active coke |
| CN111841240A (en)* | 2019-04-26 | 2020-10-30 | 英特佳工程与环境技术有限公司 | Container and method for loading ammonia gas into adsorbent and/or absorbent |
| CN110075664A (en)* | 2019-06-12 | 2019-08-02 | 中冶北方（大连）工程技术有限公司 | Gas column type activated coke regeneration gas air seal set |
| CN110075664B (en)* | 2019-06-12 | 2024-04-02 | 中冶北方（大连）工程技术有限公司 | Air column type active coke regenerated gas sealing device |
| CN110201527A (en)* | 2019-07-08 | 2019-09-06 | 北京中航泰达环保科技股份有限公司 | A kind of pre- spray ammonia system and technique of active carbon desulfurization denitration |
| CN110201527B (en)* | 2019-07-08 | 2020-07-07 | 北京中航泰达环保科技股份有限公司 | Pre-ammonia spraying system and process for activated carbon desulfurization and denitrification |
| CN110559851A (en)* | 2019-09-30 | 2019-12-13 | 中冶东方工程技术有限公司 | Ultra-low temperature modularization flue gas denitration system |
| CN111408263A (en)* | 2020-03-20 | 2020-07-14 | 北京海顺德钛催化剂有限公司 | Flue gas treatment device |
| CN112275129A (en)* | 2020-09-04 | 2021-01-29 | 山西太钢工程技术有限公司 | Flue gas emission treatment method and equipment |
| CN116510482A (en)* | 2023-04-25 | 2023-08-01 | 河钢集团有限公司 | Counter-flow type activated carbon denitration device and control method |
| Publication number | Publication date |
|---|---|
| WO2019196486A1 (en) | 2019-10-17 |
| CN108371872B (en) | 2023-07-25 |
| MY205899A (en) | 2024-11-19 |
| KR20200104404A (en) | 2020-09-03 |
| KR102422222B1 (en) | 2022-07-19 |
| BR112020016922A2 (en) | 2020-12-15 |
| PH12020551257A1 (en) | 2021-04-19 |
| RU2760553C1 (en) | 2021-11-29 |
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