CN102492444A - Spiral feeder used for fluidized-bed-type fast biomass pyrolysis - Google Patents

Abstract

Translated fromChinese

本发明涉及一种进料装置，特别是一种用于流化床生物质快速热解的螺旋进料器。料仓位于关风器的上方，通过关风器将料仓内的物料输送到进料器壳体内，生物质再由壳体内的绞龙连续推入流化床反应器内。通过关风器的机械密封以及输料管内填充的物料的隔压锁风，保证了进料器不会出现反喷现象；搅动杆构件位于料仓内，关风器旋转卸料的同时为搅动杆构件提供动力，使搅动杆构件上下运动并搅动物料，避免出现搭桥、挂壁等现象；变频电机连接齿轮变速箱为绞龙及关风器提供动力，同时通过速度配比保证二者的进料量一致。

The invention relates to a feeding device, in particular to a screw feeder for rapid pyrolysis of fluidized bed biomass. The silo is located above the air locker, and the material in the silo is transported to the feeder shell through the air locker, and the biomass is continuously pushed into the fluidized bed reactor by the auger in the shell. Through the mechanical seal of the air locker and the pressure and air lock of the material filled in the delivery pipe, it is ensured that the feeder will not have back spray phenomenon; The rod member provides power to make the agitating rod member move up and down and stir the material, avoiding bridging, hanging on the wall, etc.; the frequency conversion motor is connected to the gear box to provide power for the auger and the air lock, and at the same time, the speed ratio ensures the progress of the two. The amount of material is consistent.

Description

Translated fromChinese

一种用于流化床生物质快速热解的螺旋进料器A screw feeder for rapid pyrolysis of fluidized bed biomass

技术领域technical field

本发明涉及一种进料装置，特别是一种用于流化床生物质快速热解的螺旋进料器。The invention relates to a feeding device, in particular to a screw feeder for rapid pyrolysis of fluidized bed biomass.

背景技术Background technique

我国生物质能源十分丰富，目前全国农作物秸秆每年可获得约6.87亿t，约60％可以能源化利用，即每年约有4.2亿t秸秆可作为生物质原料，折合约2.1亿t标准煤；林业剩余物每年可获得约1.25亿t，折合约7125万t标准煤。据预测，到2050年我国可开发生物质资源量至少可以达到15亿t。对生物质的有效利用，不仅能解决能源问题，而且可解决环境问题，在节能减排、降低碳排放、能源回收等方面有很好的效果。流化床式快速热解技术可以将低能量密度的生物质转换为高品位的生物油和其他能源产品，以制取燃料或化工产品，被认为是最具发展潜力的生物质能利用技术之一。my country is very rich in biomass energy. At present, about 687 million tons of crop straw can be obtained every year in the country, and about 60% can be used as energy, that is, about 420 million tons of straw can be used as biomass raw materials every year, equivalent to about 210 million tons of standard coal; forestry The remainder can obtain about 125 million tons per year, equivalent to about 71.25 million tons of standard coal. It is predicted that by 2050 my country's exploitable biomass resources will reach at least 1.5 billion tons. The effective use of biomass can not only solve energy problems, but also solve environmental problems, and has good effects in energy saving, emission reduction, carbon emission reduction, energy recovery, etc. Fluidized bed fast pyrolysis technology can convert biomass with low energy density into high-grade bio-oil and other energy products to produce fuel or chemical products. It is considered to be one of the biomass energy utilization technologies with the most development potential. one.

生物质快速热解过程中，必须保证物料连续、均匀地进入流化床反应器，并且要求进料器和流化床反应器严格密封。由于生物质具有密度小、休止角大、流动性差等特点，在加料过程中料仓内很容易出现搭桥、挂壁等问题，从而导致加料不稳定或停止供料。流化床生物质快速热解系统为正压系统，如果密封不好会导致反应器内的热气流逸出，形成反喷，使物料难以进入反应器。During the rapid pyrolysis of biomass, it is necessary to ensure that the material enters the fluidized bed reactor continuously and uniformly, and the feeder and the fluidized bed reactor are required to be strictly sealed. Due to the characteristics of low density, large angle of repose, and poor fluidity of biomass, problems such as bridging and hanging on the wall are prone to occur in the silo during the feeding process, resulting in unstable feeding or stop feeding. The rapid pyrolysis system of fluidized bed biomass is a positive pressure system. If the seal is not good, the hot air flow in the reactor will escape, forming back spray, making it difficult for materials to enter the reactor.

现有的生物质进料器还不能彻底解决由于生物质具有密度小、休止角大、流动性差等原因导致的架桥、挂壁等问题。同时，现有的生物质进料器不能在保证连续、均匀进料的同时防止反喷。这两种因素在很大程度上限制了流化床生物质快速热解技术的发展。The existing biomass feeder still cannot completely solve the problems of bridging and wall hanging caused by biomass having low density, large angle of repose, and poor fluidity. At the same time, the existing biomass feeder cannot prevent backspray while ensuring continuous and uniform feeding. These two factors largely limit the development of fluidized bed biomass fast pyrolysis technology.

发明内容Contents of the invention

本发明的目的是为了克服现有生物质进料器存在的各种不足，提出了一种既可以避免进料不畅又可以防止反喷的用于流化床生物质快速热解的螺旋进料器。The purpose of the present invention is to overcome various deficiencies existing in the existing biomass feeder, and propose a screw feeder for fast pyrolysis of fluidized bed biomass that can avoid feeding blockage and prevent back-spraying. Feeder.

本发明通过以下技术方式实现：进料器壳体、关风器、料仓通过法兰竖直连接，进料绞龙位于进料器壳体内，生物质经关风器进入进料器壳体内，再由绞龙推入流化床反应器，保证了进料的连续、均匀。同时，关风器的隔压锁风和进料器壳体内物料的料封起到了防反喷的作用；位于料仓内的搅动杆构件由直搅动杆、弯搅动杆、连杆、触头组成，一端通过螺栓与料仓壁连接，另一端连接弹簧构件。直搅动杆和弯搅动杆由导轨连接，搅动杆上焊接连杆，连杆两端为触头；弯搅动杆的下端与关风器的叶片接触，通过关风器的旋转运动为搅动杆构件提供动力，使搅动杆构件向上运动并挤压弹簧构件。当搅动杆构件的下端脱离关风器的叶片时，弹簧构件将搅动杆构件推向即将旋转过来的叶片，通过搅动杆构件的上下运动搅动物料，避免出现搭桥、挂壁等现象；调频电机带动齿轮变速箱为绞龙和关风器提供动力，同时保证二者的进料量一致；进料器壳体与齿轮变速箱通过螺栓固定在底座上。The present invention is realized through the following technical means: the feeder shell, the air shutoff, and the silo are vertically connected through flanges, the feeding auger is located in the feeder shell, and the biomass enters the feeder shell through the air shutoff , and then pushed into the fluidized bed reactor by the auger to ensure the continuous and uniform feeding. At the same time, the air lock of the air lock and the material seal of the material in the feeder shell play the role of anti-spray; One end is connected to the silo wall by bolts, and the other end is connected to the spring member. The straight agitating rod and the curved agitating rod are connected by guide rails, the connecting rod is welded on the agitating rod, and the two ends of the connecting rod are contacts; the lower end of the curved agitating rod is in contact with the blade of the air lock, and the rotating motion of the air lock is used as a stirring rod member Power is provided to move the agitator rod member upward and compress the spring member. When the lower end of the agitating rod member is separated from the blade of the air shutter, the spring member will push the agitating rod member to the blade that is about to rotate, and agitate the material through the up and down movement of the agitating rod member to avoid phenomena such as bridging and hanging on the wall; the frequency modulation motor drives The gear box provides power for the auger and the air lock, and at the same time ensures that the feeding volume of the two is consistent; the feeder housing and the gear box are fixed on the base by bolts.

所述连杆成不规则、不同角度布置，保证良好的扰动效果。The connecting rods are arranged irregularly and at different angles to ensure a good disturbance effect.

所述触头为铝球，焊接在连杆两端。The contacts are aluminum balls welded at both ends of the connecting rod.

所述的弹簧构件内部为止推弹簧。The inside of the spring member is a thrust spring.

与现有技术相比，由于关风器具有良好的机械密封作用，绞龙与进料管间填充的物料能起到料封作用，实现了流化床反应器与螺旋进料器的隔压锁风；由于在料仓内设置了搅动杆构件，以关风器叶片的转动提供动力，即不需要额外提供动力又实现了物料在料仓内的扰动，避免出现搭桥、挂壁等现象。Compared with the existing technology, due to the good mechanical sealing effect of the air lock, the material filled between the auger and the feeding pipe can play a role of material sealing, realizing the pressure isolation between the fluidized bed reactor and the screw feeder Wind lock: Since the agitating rod member is installed in the silo, the rotation of the air lock blade is used to provide power, that is, no additional power is needed and the disturbance of the material in the silo is realized, avoiding bridges and hanging on the wall.

附图说明Description of drawings

图1为本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.

图2为本发明的左视图。Fig. 2 is a left view of the present invention.

图3为本发明的局部放大图Fig. 3 is the local enlargement figure of the present invention

图中标号：Labels in the figure:

1-绞龙；2-进料器壳体；3-关风器；4-料仓；5-触头；6-连杆；7-齿轮变速箱；8-调频电机；9-底座；10-弹簧构件；11-直搅动杆；12-导轨；13-弯搅动杆。1-Auger; 2-Feeder shell; 3-Air shut-off device; 4-Main bin; 5-Contact; 6-Connecting rod; 7-Gear gearbox; 8-FM motor; 9-Base; 10 - spring member; 11 - straight stirring rod; 12 - guide rail; 13 - curved stirring rod.

具体实施方式Detailed ways

本发明提供了一种用于流化床生物质快速热解的螺旋进料器，下面通过附图和具体实施方式对本发明作进一步说明。The present invention provides a screw feeder for rapid pyrolysis of fluidized bed biomass, and the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

如图1和图2所示，该生物质螺旋进料器的结构为：进料器壳体2、关风器3、料仓4通过法兰竖直连接，进料绞龙1位于进料器壳体2内，生物质经关风器3进入进料器壳体2内，再由绞龙1推入流化床反应器，保证了进料的连续、均匀。同时，关风器3的隔压锁风和进料器壳体2内物料的料封起到了防反喷的作用；位于料仓4内的搅动杆构件由直搅动杆11、弯搅动杆13、连杆6、触头5组成，一端通过螺栓与料仓壁连接，另一端连接弹簧构件10，直搅动杆11和弯搅动杆13由导轨12连接，搅动杆上焊接连杆6，连杆6两端为触头5；弯搅动杆13的下端与关风器3的叶片接触，通过关风器3的旋转运动为搅动杆构件提供动力，使搅动杆向上运动并挤压弹簧构件10。当弯搅动杆13的下端脱离关风器3的叶片时，弹簧构件10将搅动杆构件推向即将旋转过来的叶片，通过搅动杆构件的上下运动搅动物料，避免出现搭桥、挂壁等现象；调频电机8带动齿轮变速箱7为绞龙1和关风器3提供动力，同时保证二者的进料量一致；进料器壳体2与齿轮变速箱7通过螺栓固定在底座9上。As shown in Figure 1 and Figure 2, the structure of the biomass screw feeder is as follows: the feeder housing 2, the air lock 3, and the silo 4 are vertically connected by flanges, and thefeed auger 1 is located at the feeder Biomass enters the feeder housing 2 through the air shutoff device 3, and then is pushed into the fluidized bed reactor by theauger 1, which ensures continuous and uniform feeding. Simultaneously, the pressure-isolated air lock of the air shutoff device 3 and the material seal of the material in the feeder housing 2 have played the role of anti-spray; , connecting rod 6 andcontact 5, one end is connected to the silo wall by bolts, the other end is connected to thespring member 10, thestraight stirring rod 11 and thecurved stirring rod 13 are connected by theguide rail 12, the connecting rod 6 is welded on the stirring rod, and the connecting rod 6. Both ends arecontacts 5; the lower end of thecurved stirring rod 13 is in contact with the blades of the air lock 3, and the rotating motion of the wind lock 3 provides power for the stirring rod member, so that the stirring rod moves upward and squeezes thespring member 10. When the lower end of thecurved stirring rod 13 is separated from the blade of the air lock 3, thespring member 10 pushes the stirring rod member to the blade that is about to rotate, and stirs the material through the up and down movement of the stirring rod member to avoid phenomena such as bridging and hanging on the wall; The frequency modulation motor 8 drives the gear box 7 to provide power for theauger 1 and the air locker 3, while ensuring that the feeding volume of the two is consistent; the feeder housing 2 and the gear box 7 are fixed on the base 9 by bolts.

Claims (4)

Translated fromChinese

1.一种用于流化床生物质快速热解的螺旋进料器，其特征在于：进料器壳体(2)、关风器(3)、料仓(4)通过法兰竖直连接，进料绞龙(1)位于进料器壳体内，生物质经关风器(3)进入进料器壳体(2)内，再由绞龙(1)推入流化床反应器，保证了进料的连续、均匀。同时，关风器(3)的隔压锁风和进料器壳体(2)内物料的料封起到了防反喷的作用；位于料仓(4)内的搅动杆构件由直搅动杆(11)、弯搅动杆(13)、连杆(6)、触头(5)组成，一端通过螺栓与料仓壁连接，另一端连接弹簧构件(10)，直搅动杆(11)和弯搅动杆(13)由导轨(12)连接，搅动杆上焊接连杆(6)，连杆(6)两端为触头(5)；弯搅动杆(13)的下端与关风器(3)的叶片接触，通过关风器(3)的旋转运动为搅动杆构件提供动力，使搅动杆构件向上运动并挤压弹簧构件(10)。当弯搅动杆(13)的下端脱离关风器(3)的叶片时，弹簧构件(10)将搅动杆构件推向即将旋转过来的叶片，通过搅动杆构件的上下运动搅动物料，避免出现搭桥、挂壁等现象；调频电机(8)带动齿轮变速箱(7)为绞龙(1)和关风器(3)提供动力，同时保证二者的进料量一致；进料器壳体(2)与齿轮变速箱(7)通过螺栓固定在底座(9)上。1. A screw feeder for rapid pyrolysis of fluidized bed biomass, characterized in that: the feeder housing (2), air shutoff device (3), feed bin (4) are vertically connected by flanges Connection, the feed auger (1) is located in the feeder shell, the biomass enters the feeder shell (2) through the air shutoff (3), and then is pushed into the fluidized bed reactor by the auger (1) , to ensure the continuous and uniform feeding. Simultaneously, the pressure-isolated air lock of the air shutoff device (3) and the material seal of the material in the feeder housing (2) have played the role of anti-spray; (11), curved stirring rod (13), connecting rod (6), contact (5), one end is connected with the silo wall by bolts, the other end is connected with spring member (10), straight stirring rod (11) and curved Stirring bar (13) is connected by guide rail (12), and welding connecting rod (6) is welded on the stirring bar, and the two ends of connecting rod (6) are contacts (5); ), the blades of the air locker (3) provide power to the agitating rod member through the rotational movement of the air locker (3), so that the agitating rod member moves upward and squeezes the spring member (10). When the lower end of the curved agitating rod (13) is separated from the blade of the air shutter (3), the spring member (10) pushes the agitating rod member to the blade that is about to rotate, and agitates the material through the up and down movement of the agitating rod member to avoid bridging , hanging on the wall, etc.; the frequency modulation motor (8) drives the gear box (7) to provide power for the auger (1) and the air shutoff device (3), while ensuring that the feeding amount of the two is consistent; the feeder housing ( 2) and the gear box (7) are fixed on the base (9) by bolts.2.根据权利要求1所述的用于流化床生物质快速热解的螺旋进料器，其特征在于：所述连杆(6)在直搅动杆(11)和弯搅动杆(13)上呈不规则、不同角度布置，保证良好的扰动效果。2. The screw feeder for rapid pyrolysis of fluidized bed biomass according to claim 1, characterized in that: the connecting rod (6) is connected between the straight stirring rod (11) and the curved stirring rod (13) The top is irregular and arranged at different angles to ensure a good disturbance effect.3.根据权利要求1所述的用于流化床生物质快速热解的螺旋进料器，其特征在于：所述触头(5)为铝球，焊接在连杆(6)两端，增强搅动效果。3. The screw feeder for rapid pyrolysis of fluidized bed biomass according to claim 1, characterized in that: the contact (5) is an aluminum ball welded to both ends of the connecting rod (6), Enhances agitation.4.根据权利要求1所述的用于流化床生物质快速热解的螺旋进料器，其特征在于：所述弹簧构件(10)内部为止推弹簧。4 . The screw feeder for rapid pyrolysis of fluidized bed biomass according to claim 1 , characterized in that: a thrust spring inside the spring member ( 10 ).

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