技术领域technical field
本发明涉及一种电力、化工、冶金等行业燃煤烟气排放物的深度净化技术，特别涉及一种去除燃煤烟气中金属汞的方法及装置。The invention relates to a deep purification technology for coal-burning flue gas emissions in industries such as electric power, chemical industry, and metallurgy, and in particular to a method and device for removing metallic mercury in coal-burning flue gas.
背景技术Background technique
电力、化工、冶金行业的燃煤烟气排放物对于大气污染的影响极大。其中，燃煤烟气所含的烟尘、二氧化硫、氮氧化物、各种形态的重金属等有害物质是造成大气污染、酸雨和温室效应的根源之一。目前，我国已经开展了大规模的烟气脱硫和脱硝项目，但是烟气中汞之类的重金属排放依然不能满足现行标准要求，仍需进一步治理。Coal-fired flue gas emissions from electric power, chemical, and metallurgical industries have a great impact on air pollution. Among them, harmful substances such as soot, sulfur dioxide, nitrogen oxides, and various forms of heavy metals contained in coal-burning flue gas are one of the root causes of air pollution, acid rain, and greenhouse effect. At present, my country has carried out large-scale flue gas desulfurization and denitrification projects, but the emission of heavy metals such as mercury in flue gas still cannot meet the current standard requirements, and further treatment is still needed.
燃煤烟气中的汞以多种形态存在：元素态汞和氧化态汞。不同形态汞具有不同的物理和化学性质。氧化态汞易溶于水，而元素态汞在大气污染物控制设备操作温度和高压下具有较高的饱和蒸汽压力，易挥发且难溶于水。Mercury in coal combustion flue gas exists in multiple forms: elemental mercury and oxidized mercury. Different forms of mercury have different physical and chemical properties. Oxidized mercury is easily soluble in water, while elemental mercury has a high saturated vapor pressure under the operating temperature and high pressure of air pollution control equipment, and is volatile and difficult to dissolve in water.
《载溴活性炭去除烟气中的单质汞》(中国环境科学，2006年第26卷，孙巍等)中通过实验分析了利用载溴活性炭去除烟气中的金属单质汞的技术方案，实验结果表明，载溴可使活性炭对单质汞的吸附量显著增加，并加快对单质汞的吸附速率。实验条件下，当载溴量为0.33％时，活性炭对汞的饱合吸附量可增加约80倍，吸附容量达0.2mg/g；相对吸附系数增加了约40倍。溴负载量越高，吸附强化作用越显著。温度升高，载溴活性炭对单质汞的吸附能力下降。上述现有技术基于基础研究的目的在实验室条件下对载溴活性炭去除烟气中的单质汞提供了原理性的描述，但是该现有技术并未提供应用于实际生产的工业化解决方案。"Removal of Elemental Mercury in Flue Gas by Brominated Activated Carbon" (China Environmental Science, Volume 26, 2006, Sun Wei, etc.) analyzed the technical scheme of using brominated activated carbon to remove elemental mercury in flue gas through experiments, and the experimental results It shows that bromine can significantly increase the adsorption capacity of activated carbon to elemental mercury, and accelerate the adsorption rate of elemental mercury. Under the experimental conditions, when the bromine load is 0.33%, the saturated adsorption capacity of activated carbon to mercury can be increased by about 80 times, and the adsorption capacity can reach 0.2mg/g; the relative adsorption coefficient has increased by about 40 times. The higher the bromine loading, the more significant the adsorption enhancement effect. As the temperature rises, the adsorption capacity of bromine-loaded activated carbon to elemental mercury decreases. The above prior art provides a theoretical description of the removal of elemental mercury in flue gas by bromine-loaded activated carbon under laboratory conditions for the purpose of basic research, but this prior art does not provide an industrialized solution for actual production.
发明内容Contents of the invention
本发明要解决的技术问题是提供一种去除燃煤烟气中金属汞的方法及装置，以减少或避免前面所提到的问题。The technical problem to be solved by the present invention is to provide a method and device for removing metallic mercury in coal-burning flue gas, so as to reduce or avoid the aforementioned problems.
为解决上述技术问题，本发明提出了一种去除燃煤烟气中金属汞的装置，其中，所述装置包括一个设置于所述燃煤烟气的排放路径中的镂空容器，所述镂空容器垂直于所述燃煤烟气的排放方向的底面和顶面，具有多个镂空的孔洞，所述镂空容器的侧壁为实心面板，所述镂空容器中部通过实心隔板分隔成相互连通的进气通道和排气通道，所述进气通道连接有气体输送管道，所述气体输送管道上旁路连接有装有载溴活性炭的载溴活性炭容器，所述载溴活性炭通过所述进气通道的负压吸入所述气体输送管道并进入所述镂空容器的进气通道，并经由所述排气通道排出所述镂空容器。In order to solve the above technical problems, the present invention proposes a device for removing metallic mercury in coal-burning flue gas, wherein the device includes a hollow container arranged in the discharge path of the coal-burning flue gas, and the hollow container The bottom surface and the top surface perpendicular to the discharge direction of the coal-fired flue gas have a plurality of hollow holes, the side wall of the hollow container is a solid panel, and the middle part of the hollow container is separated into interconnected inlets by a solid partition. Gas passage and exhaust passage, described air inlet passage is connected with gas conveying pipe, and the bypass on described gas conveying pipe is connected with the bromine-carrying activated carbon container that bromine-carrying activated carbon is housed, and described bromine-carrying activated carbon passes through described air inlet passage The negative pressure is drawn into the gas delivery pipe and enters the air intake channel of the hollow container, and is discharged from the hollow container through the exhaust channel.
优选地，至少所述镂空容器的底面和顶面上覆盖有一层纱布。Preferably, at least the bottom surface and the top surface of the hollow container are covered with a layer of gauze.
优选地，所述底面上的所述孔洞的总面积大于所述顶面上的所述孔洞的总面积。Preferably, the total area of the holes on the bottom surface is greater than the total area of the holes on the top surface.
优选地，由所述排气通道排出所述镂空容器的所述载溴活性炭循环输入所述载溴活性炭容器。Preferably, the bromine-carrying activated carbon discharged from the hollow container through the exhaust channel is circulated into the bromine-carrying activated carbon container.
优选地，所述载溴活性炭容器设置于所述气体输送管道的上方，所述载溴活性炭容器的下部开口与所述气体输送管道旁路连接。Preferably, the bromine-loaded activated carbon container is arranged above the gas delivery pipeline, and the lower opening of the bromine-loaded activated carbon container is connected to the gas delivery pipeline by a bypass.
优选地，所述气体输送管道中输送的气体为空气和溴蒸汽的混合气体。Preferably, the gas transported in the gas transport pipeline is a mixed gas of air and bromine vapor.
优选地，所述溴蒸汽占所述混合气体的体积百分比为0.01～0.05％。Preferably, the volume percentage of the bromine vapor in the mixed gas is 0.01-0.05%.
优选地，紧贴所述镂空容器的侧壁设置有冷却管道。Preferably, a cooling duct is provided close to the side wall of the hollow container.
本发明还提出了一种利用前述装置去除燃煤烟气中金属汞的方法，其中，所述方法包括如下步骤：将所述镂空容器设置在所述燃煤烟气的排放路径中；利用所述气体输送管道输送所述混合气体时所产生的负压将所述载溴活性炭吸入所述气体输送管道并进入所述镂空容器的进气通道；通过所述排气通道将进入所述镂空容器的所述载溴活性炭排出所述镂空容器，并循环输入所述载溴活性炭容器。The present invention also proposes a method for removing metallic mercury in coal-burning flue gas by using the aforementioned device, wherein the method includes the following steps: setting the hollow container in the discharge path of the coal-burning flue gas; using the The negative pressure generated when the gas delivery pipeline transports the mixed gas sucks the bromine-carrying activated carbon into the gas delivery pipeline and enters the air intake channel of the hollow container; through the exhaust channel, it will enter the hollow container The bromine-loaded activated carbon is discharged from the hollow container, and is circulated into the bromine-loaded activated carbon container.
综上所述，本发明通过提供镂空容器，使燃煤烟气中的金属汞在燃煤烟气穿过镂空容器的时候，与镂空容器中流动的载溴活性炭接触，从而可以将金属汞吸附在载溴活性炭上并带出镂空容器。本发明的上述装置中，载溴活性炭以流动的方式分散在整个镂空容器中，载溴活性炭与燃煤烟气可以获得最大的接触面积，大大提高了载溴活性炭的吸附效率，可以将金属汞以极高的脱除率从燃煤烟气中去除。To sum up, the present invention provides a hollowed container so that the metallic mercury in the coal-fired flue gas will contact the bromine-carrying activated carbon flowing in the hollowed container when the coal-fired flue gas passes through the hollowed container, so that the metallic mercury can be adsorbed. on bromine-laden activated carbon and out of the hollowed-out container. In the above-mentioned device of the present invention, the bromine-carrying activated carbon is dispersed in the whole hollow container in a flowing manner, and the bromine-carrying activated carbon and the coal-fired flue gas can obtain the largest contact area, which greatly improves the adsorption efficiency of the bromine-carrying activated carbon, and can remove metal mercury It is removed from coal combustion flue gas with a very high removal rate.
附图说明Description of drawings
以下附图仅旨在于对本发明做示意性说明和解释，并不限定本发明的范围。其中，The following drawings are only intended to illustrate and explain the present invention schematically, and do not limit the scope of the present invention. in,
图1显示的是根据本发明的一个具体实施例的一种去除燃煤烟气中金属汞的装置的结构示意图；What Fig. 1 shows is a kind of structural schematic diagram of the device for removing metallic mercury in coal-fired flue gas according to a specific embodiment of the present invention;
图2显示的是图1所示去除燃煤烟气中金属汞的装置的俯视图。Fig. 2 shows a top view of the device shown in Fig. 1 for removing metallic mercury in coal combustion flue gas.
具体实施方式Detailed ways
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图说明本发明的具体实施方式。其中，相同的部件采用相同的标号。In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings. Wherein, the same parts adopt the same reference numerals.
正如背景技术部分所述，现有技术中利用载溴活性炭去除燃煤烟气中的金属汞的实验原理已经比较明了，但是如何将实验成果应用于实际的工业化生产尚无可供借鉴的成熟经验。基于此，本发明提供了一种去除燃煤烟气中金属汞的方法和装置，其目的就是为了将仅适用于实验条件下的研究成果转换成一种可应用于实际生产的工业化解决方案。As mentioned in the background technology section, the experimental principle of using bromine-loaded activated carbon to remove metallic mercury in coal-fired flue gas is relatively clear in the prior art, but there is no mature experience for reference on how to apply the experimental results to actual industrial production . Based on this, the present invention provides a method and device for removing metallic mercury in coal-burning flue gas, the purpose of which is to transform the research results that are only applicable under experimental conditions into an industrialized solution that can be applied to actual production.
如图所示，图1显示的是根据本发明的一个具体实施例的一种去除燃煤烟气中金属汞的装置的结构示意图；图2显示的是图1所示去除燃煤烟气中金属汞的装置的俯视图。As shown in the figure, what Fig. 1 shows is a structural schematic diagram of a device for removing metallic mercury in coal-fired flue gas according to a specific embodiment of the present invention; Fig. 2 shows the device shown in Fig. Top view of the device for metallic mercury.
如图1-2所示，本发明的去除燃煤烟气中金属汞的装置整体上用附图标记1表示，所述装置1包括一个设置于燃煤烟气的排放路径中的镂空容器10。燃煤烟气可以在管道或烟囱中沿图示箭头F方向从下往上排放，如图1所示。As shown in Figures 1-2, the device for removing metallic mercury in coal-burning flue gas according to the present invention is generally indicated by reference numeral 1, and the device 1 includes a hollow container 10 arranged in the discharge path of coal-burning flue gas . Coal-fired flue gas can be discharged from bottom to top in the pipe or chimney along the direction of arrow F in the illustration, as shown in Figure 1.
镂空容器10垂直于燃煤烟气的排放方向的底面11和顶面12具有多个镂空的孔洞100(如图2所示)，镂空容器10的侧壁13为实心面板，也就是镂空容器10在图1所示视图中的上下两个面(底面11和顶面12)是镂空的，允许燃煤烟气通过，而镂空容器10的侧壁13是实心面板不透风的，如图1-2所示。The bottom surface 11 and the top surface 12 of the hollow container 10 perpendicular to the discharge direction of coal-burning smoke have a plurality of hollow holes 100 (as shown in FIG. 2 ), and the side wall 13 of the hollow container 10 is a solid panel, that is, the hollow container 10 In the view shown in Figure 1, the upper and lower surfaces (bottom surface 11 and top surface 12) are hollowed out to allow coal-burning smoke to pass through, while the side wall 13 of the hollowed-out container 10 is a solid panel that is airtight, as shown in Figure 1- 2.
镂空容器10中部通过实心隔板14分隔成相互连通的进气通道15和排气通道16，进气通道15连接有气体输送管道151，气体输送管道151上旁路连接有装有载溴活性炭152的载溴活性炭容器153，所述载溴活性炭152通过进气通道15的负压吸入所述气体输送管道151并进入镂空容器10的进气通道15，并经由排气通道16排出镂空容器10。The middle part of the hollow container 10 is divided into interconnected intake channels 15 and exhaust channels 16 by a solid partition 14. The intake channel 15 is connected with a gas delivery pipeline 151, and the gas delivery pipeline 151 is bypassed with a bromine-loaded activated carbon 152. The bromine-carrying activated carbon container 153, the bromine-carrying activated carbon 152 is sucked into the gas delivery pipe 151 by the negative pressure of the air inlet channel 15 and enters the air inlet channel 15 of the hollow container 10, and is discharged from the hollow container 10 through the exhaust channel 16.
图1由于是正面视图，图中仅示出了图2的下半部分，亦即从图1中仅仅可以看到进气通道15以及相关联的气体输送管道151以及载溴活性炭容器153等。至于本发明所用到的载溴活性炭152可以参照背景技术部分所述，采用市售产品或利用现有技术加以制备，本发明不涉及这部分内容，在此不再一一赘述。Since Fig. 1 is a front view, only the lower half of Fig. 2 is shown in the figure, that is, only the intake passage 15 and the associated gas delivery pipeline 151 and the bromine-carrying activated carbon container 153 can be seen from Fig. 1 . As for the bromine-carrying activated carbon 152 used in the present invention, it can be prepared by using commercially available products or using existing technologies with reference to the background technology, which is not involved in the present invention and will not be repeated here.
本发明的上述具体实施例中，提供了一个可供燃煤烟气通过的镂空容器10，通过将镂空容器10分隔成进气通道15和排气通道16，从而可以将载溴活性炭152从进气通道15输入镂空容器10，然后从排气通道16排出镂空容器10。燃煤烟气中的金属单质汞在燃煤烟气穿过镂空容器10的时候，与镂空容器10中流动的载溴活性炭152接触，从而可以将金属单质汞吸附在载溴活性炭152上并带出镂空容器10以进行进一步的处理。In the above specific embodiments of the present invention, a hollow container 10 is provided through which coal-fired flue gas can pass. The air channel 15 enters the hollow container 10 , and then exits the hollow container 10 from the exhaust channel 16 . When the coal-fired flue gas passes through the hollow container 10, the metal elemental mercury in the coal-fired flue gas contacts the bromine-carrying activated carbon 152 flowing in the hollow container 10, so that the metal elemental mercury can be adsorbed on the bromine-carrying activated carbon 152 and carried The hollowed container 10 is removed for further processing.
至此，本发明的上述装置1可以将金属汞以极高的脱除率从燃煤烟气中去除，并且相较于背景技术中的实验设备，本发明的装置1中，载溴活性炭152并非固定于容器中被动与燃煤烟气接触，而是以流动的方式分散在整个镂空容器10中，载溴活性炭152与燃煤烟气可以获得最大的接触面积，大大提高了载溴活性炭152的吸附效率。So far, the above-mentioned device 1 of the present invention can remove metallic mercury from coal-fired flue gas with a very high removal rate, and compared with the experimental equipment in the background technology, in the device 1 of the present invention, the bromine-carrying activated carbon 152 is not Fixed in the container and passively contact with the coal-fired flue gas, but dispersed in the whole hollow container 10 in a flowing manner, the bromine-loaded activated carbon 152 can obtain the largest contact area with the coal-fired flue gas, greatly improving the bromine-loaded activated carbon 152 adsorption efficiency.
另外，为了维持载溴活性炭152在镂空容器10的进气通道15和排气通道16之间高效、顺利地流动，本发明在镂空容器10的底面11和顶面12设置了供燃煤烟气通过的孔洞100，镂空容器10的侧壁13设置成了实心状态，使得气体输送管道151中的气体可以沿着镂空容器10的侧壁13形成一个流动的气体输送通道，从而可以顺利的将载溴活性炭152从进气通道15输入，从排气通道16排出。In addition, in order to maintain the efficient and smooth flow of the bromine-carrying activated carbon 152 between the air intake passage 15 and the exhaust passage 16 of the hollowed container 10, the present invention provides a coal combustion flue gas supply on the bottom surface 11 and the top surface 12 of the hollowed container 10. Through the hole 100, the side wall 13 of the hollow container 10 is set to a solid state, so that the gas in the gas delivery pipeline 151 can form a flowing gas delivery channel along the side wall 13 of the hollow container 10, so that The bromine activated carbon 152 is input from the intake channel 15 and discharged from the exhaust channel 16 .
如果侧壁13上也设置孔洞，则气体输送管道151中的气体大部分会从进气通道15进入镂空容器10之后就从侧壁13上的孔洞跑出去了，难以回到排气通道16，因而无法形成有效的气体输送通道，通过负压吸入的载溴活性炭152只会聚集到进气通道15的尾端，很少能够从排气通道16排出，去除金属汞的效率会大大降低。If holes are also set on the side wall 13, most of the gas in the gas delivery pipeline 151 will enter the hollowed container 10 from the air intake passage 15 and then run out from the holes on the side wall 13, making it difficult to return to the exhaust passage 16. Therefore, an effective gas delivery channel cannot be formed, and the bromine-loaded activated carbon 152 inhaled by negative pressure will only gather at the tail end of the intake channel 15, and rarely be discharged from the exhaust channel 16, and the efficiency of removing metallic mercury will be greatly reduced.
为了方便燃煤烟气进入镂空容器10，同时为了防止载溴活性炭152从镂空容器10的底面11和顶面12上的孔洞100流出镂空容器10，在本发明的一个优选实施例中，至少在镂空容器10的底面11和顶面12上覆盖有一层纱布(图中未示出)。纱布相对细小的网眼可以避免载溴活性炭152漏出来，同时也可以允许燃煤烟气通过。采用覆盖纱布的方案的优点是可以在堵塞、破损的情况下方便对纱布进行更换。如果镂空容器10的底面11和顶面12本身就是用纱布制成也是可行的一种方案，只是由于纱布强度不高，需要设置支撑框架以承载载溴活性炭152，同时发生堵塞、破损的情况下需要进行整体更换，相对该优选实施例而言效率相对较差而且成本较高。Enter the hollow container 10 for the convenience of coal-fired flue gas, simultaneously in order to prevent the bromine-loaded activated carbon 152 from flowing out of the hollow container 10 from the bottom surface 11 and the hole 100 on the top surface 12 of the hollow container 10, in a preferred embodiment of the present invention, at least The bottom surface 11 and the top surface 12 of the hollow container 10 are covered with a layer of gauze (not shown in the figure). The relatively fine mesh of the gauze can prevent the bromine-loaded activated carbon 152 from leaking out, and can also allow the coal-fired smoke to pass through. The advantage of adopting the scheme of covering the gauze is that the gauze can be replaced conveniently in the case of blockage or damage. If the bottom surface 11 and the top surface 12 of the hollow container 10 are made of gauze itself, it is also a feasible solution, but because the strength of the gauze is not high, a support frame needs to be provided to carry the bromine-loaded activated carbon 152, and in the case of blockage and damage A complete replacement is required, which is relatively inefficient and expensive relative to the preferred embodiment.
由于燃煤烟气的流动方向是从下往上的，为便于燃煤燃气更多的进入镂空容器10且停留相对较长的时间，以便燃煤烟气与载溴活性炭反应接触的时间更长一些，去除效果更好一些，在另一个优选实施例中，在底面11上的孔洞100的总面积大于顶面12上的孔洞100的总面积。事实上，这种设计方案是将迎着燃煤烟气一侧的孔洞的总面积设置得更大一些，背着燃煤烟气一侧的孔洞的总面积设置得相对小一些。Since the flow direction of the coal-fired flue gas is from bottom to top, in order to facilitate the coal-fired gas to enter the hollow container 10 and stay for a relatively long time, so that the coal-fired flue gas can react with the bromine-carrying activated carbon for a longer time. Some, the removal effect is better. In another preferred embodiment, the total area of the holes 100 on the bottom surface 11 is larger than the total area of the holes 100 on the top surface 12 . In fact, this design scheme is to set the total area of the holes on the side facing the coal-fired flue gas to be larger, and to set the total area of the holes on the side facing away from the coal-fired flue gas to be relatively small.
由于载溴活性炭处于流动状态，其与燃煤烟气接触的时间相对较短，因此排出镂空容器10的载溴活性炭距离其吸附极限仍然很远，为提高载溴活性炭的利用效率，在又一个优选实施例中，由排气通道16排出镂空容器10的载溴活性炭152可以设置循环输入载溴活性炭容器153，如图1-2中箭头B所示，这种循环可以设定恰当的时间后将载溴活性炭一次性进行更换，从而可以提高载溴活性炭的利用效率，节约成本。Since the bromine-loaded activated carbon is in a flowing state, its contact time with the coal-fired flue gas is relatively short, so the bromine-loaded activated carbon discharged from the hollow container 10 is still far away from its adsorption limit. In order to improve the utilization efficiency of the bromine-loaded activated carbon, in another In a preferred embodiment, the bromine-carrying activated carbon 152 discharged from the hollow container 10 by the exhaust passage 16 can be set to circulate into the bromine-carrying charcoal container 153, as shown by the arrow B in Figure 1-2, after this cycle can be set after an appropriate time The bromine-loaded activated carbon is replaced at one time, so that the utilization efficiency of the bromine-loaded activated carbon can be improved and the cost can be saved.
进一步的，为了便于载溴活性炭吸附进入气体输送管道151，如图1所示，可以将载溴活性炭容器153设置于气体输送管道151的上方，载溴活性炭容器153的下部开口与气体输送管道151旁路连接，而载溴活性炭容器153的上部也便于接收循环利用的载溴活性炭。Further, in order to facilitate the adsorption of bromine-carrying activated carbon into the gas delivery pipeline 151, as shown in Figure 1, the bromine-carrying activated carbon container 153 can be arranged on the top of the gas delivery pipeline 151, and the lower opening of the bromine-carrying activated carbon container 153 is connected to the gas delivery pipeline 151 Bypass connection, and the top of the bromine-carrying activated carbon container 153 is also convenient to receive recycled bromine-carrying activated carbon.
优选地，气体输送管道151中输送的气体为空气和溴蒸汽的混合气体。亦即，背景技术中利用氮气作为载气对于工业生产是不可能的，本发明可以采用鼓风机吹入空气作为载气，同时为了提高载溴活性炭的吸附能力，在本实施例中在空气中混合有一定量的溴蒸汽。当然，从成本和气体毒性方面考虑，混入空气的溴蒸汽的量相对是很少的，更优选地，所述溴蒸汽占混合气体的体积百分比为0.01～0.05％。Preferably, the gas transported in the gas transport pipeline 151 is a mixed gas of air and bromine vapor. That is to say, it is impossible to utilize nitrogen as carrier gas in the background technology for industrial production, the present invention can adopt air blower to blow into air as carrier gas, simultaneously in order to improve the adsorptive capacity of bromine-carrying activated carbon, mix in air in the present embodiment A certain amount of bromine vapor is present. Certainly, considering cost and gas toxicity, the amount of bromine vapor mixed into the air is relatively small, and more preferably, the volume percentage of the bromine vapor in the mixed gas is 0.01-0.05%.
另外，正如背景技术部分所述的，实验表明，温度升高，载溴活性炭对单质汞的吸附能力会下降，因此，在还有一个具体实施例中，可以设置紧贴镂空容器10的侧壁13设置冷却管道(图中未示出)，可以根据燃煤烟气的温度情况控制镂空容器10中的温度，从而达到最佳的吸附效果。In addition, as described in the background technology section, experiments have shown that as the temperature increases, the adsorption capacity of bromine-loaded activated carbon to elemental mercury will decrease. Therefore, in another specific embodiment, it is possible to set the 13 is provided with a cooling pipeline (not shown in the figure), which can control the temperature in the hollow container 10 according to the temperature of the coal-fired flue gas, so as to achieve the best adsorption effect.
根据上述多个具体实施例的描述，可以归纳一种利用本发明的上述装置1来去除燃煤煤烟气中金属汞的方法，所述方法可以融合前述优选实施例，以如下步骤加以实施：首先，将所述镂空容器10设置在燃煤烟气的排放路径中，如图1所示；然后，利用气体输送管道151输送混合气体时所产生的负压将载溴活性炭152吸入气体输送管道151并进入镂空容器10的进气通道15；最后，通过排气通道16将进入镂空容器10的载溴活性炭152排出镂空容器10，并循环输入载溴活性炭容器153。According to the description of the above-mentioned multiple specific embodiments, a method for removing metallic mercury in coal-fired coal flue gas by using the above-mentioned device 1 of the present invention can be summarized, and the method can be implemented by integrating the above-mentioned preferred embodiments with the following steps: First, the hollow container 10 is arranged in the discharge path of coal-fired flue gas, as shown in Figure 1; then, the bromine-loaded activated carbon 152 is sucked into the gas delivery pipeline by the negative pressure generated when the gas delivery pipeline 151 is used to deliver the mixed gas 151 and enter the air intake channel 15 of the hollow container 10; finally, the bromine-carrying activated carbon 152 entering the hollow container 10 is discharged from the hollow container 10 through the exhaust channel 16, and is circulated into the bromine-carrying activated carbon container 153.
本领域技术人员应当理解，虽然本发明是按照多个实施例的方式进行描述的，但是并非每个实施例仅包含一个独立的技术方案。说明书中如此叙述仅仅是为了清楚起见，本领域技术人员应当将说明书作为一个整体加以理解，并将各实施例中所涉及的技术方案看作是可以相互组合成不同实施例的方式来理解本发明的保护范围。Those skilled in the art should understand that although the present invention is described in terms of multiple embodiments, not each embodiment only includes an independent technical solution. The description in the description is only for the sake of clarity, and those skilled in the art should understand the description as a whole, and understand the present invention by considering the technical solutions involved in each embodiment as being able to be combined with each other to form different embodiments scope of protection.
以上所述仅为本发明示意性的具体实施方式，并非用以限定本发明的范围。任何本领域的技术人员，在不脱离本发明的构思和原则的前提下所作的等同变化、修改与结合，均应属于本发明保护的范围。The above descriptions are only illustrative specific implementations of the present invention, and are not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations made by those skilled in the art without departing from the concept and principle of the present invention shall fall within the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103405.2ACN104707442B (en) | 2015-03-10 | 2015-03-10 | Method and device for removing metallic mercury in fire coal flue gas |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510103405.2ACN104707442B (en) | 2015-03-10 | 2015-03-10 | Method and device for removing metallic mercury in fire coal flue gas |
| Publication Number | Publication Date |
|---|---|
| CN104707442Atrue CN104707442A (en) | 2015-06-17 |
| CN104707442B CN104707442B (en) | 2017-02-01 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510103405.2AExpired - Fee RelatedCN104707442B (en) | 2015-03-10 | 2015-03-10 | Method and device for removing metallic mercury in fire coal flue gas |
| Country | Link |
|---|---|
| CN (1) | CN104707442B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889698A (en)* | 1986-07-16 | 1989-12-26 | A/S Niro Atomizer | Process for removal or mercury vapor and/or vapor of noxious organic compounds and/or nitrogen oxides from flue gas from an incinerator plant |
| US20040003716A1 (en)* | 2002-05-06 | 2004-01-08 | Nelson Sidney G. | Sorbents and methods for the removal of mercury from combustion gases |
| CN101502737A (en)* | 2009-01-21 | 2009-08-12 | 东华大学 | Method and device for removing heavy metal mercy in fire coal flue gas by carbon powder treated by brominating process |
| CN204447675U (en)* | 2015-03-10 | 2015-07-08 | 中国环境科学研究院 | A kind of coal burning fume mercury-removing device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889698A (en)* | 1986-07-16 | 1989-12-26 | A/S Niro Atomizer | Process for removal or mercury vapor and/or vapor of noxious organic compounds and/or nitrogen oxides from flue gas from an incinerator plant |
| US4889698B1 (en)* | 1986-07-16 | 2000-02-01 | Niro Atomizer As | Process for removal or mercury vapor and/ or vapor of noxious organic compounds and/ or nitrogen oxides from flue gas from an incinerator plant |
| US20040003716A1 (en)* | 2002-05-06 | 2004-01-08 | Nelson Sidney G. | Sorbents and methods for the removal of mercury from combustion gases |
| CN101502737A (en)* | 2009-01-21 | 2009-08-12 | 东华大学 | Method and device for removing heavy metal mercy in fire coal flue gas by carbon powder treated by brominating process |
| CN204447675U (en)* | 2015-03-10 | 2015-07-08 | 中国环境科学研究院 | A kind of coal burning fume mercury-removing device |
| Publication number | Publication date |
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| CN104707442B (en) | 2017-02-01 |
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