CN105727733B - A kind of low-concentration organic exhaust gas fluidization tower - Google Patents

A kind of low-concentration organic exhaust gas fluidization tower Download PDF

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CN105727733B
CN105727733B CN201610057205.2A CN201610057205A CN105727733B CN 105727733 B CN105727733 B CN 105727733B CN 201610057205 A CN201610057205 A CN 201610057205A CN 105727733 B CN105727733 B CN 105727733B
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CN105727733A (en
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王莉
万玉山
邹涛
李大伟
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Shanghai Bosco Industry And Trade Co ltd
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Changzhou University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84Biological processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/72Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84Biological processes
    • B01D53/85Biological processes with gas-solid contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/95Specific microorganisms
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Life Sciences & Earth Sciences (AREA)
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Abstract

A kind of low-concentration organic exhaust gas fluidization tower is followed successively by muddy water area, fluidization regions, adsorption and oxidation area, dehumidifying area, activated carbon adsorption area and exhaust fan from tower bottom upwards;Muddy water area is designed to pyramidal structure, collects the muddy water from top, and the bottom of pyramidal structure is equipped with drain valve, and drain valve connects the sludge concentration tank outside tower;Fluidisation cylinder is equipped in fluidization regions, fluidisation cylinder is cylindrical barrel structure, positioned at the center of fluidization regions, the lower ending opening of fluidisation cylinder is located at the bottom of fluidization regions, upper end opening is located at the top of fluidization regions, and the lower end for fluidizing cylinder is equipped with air inlet pipe and gas distribution pipe, and gas distribution pipe is arranged to concentric circles;Adsorption and oxidation area is located at the top of fluidization regions;Adsorption and oxidation area top is equipped with dehumidifying area;Area top dehumidify equipped with activated carbon adsorption area.

Description

一种低浓度有机废气流化塔A low-concentration organic waste fluidization tower

技术领域technical field

本发明涉及大气污染治理技术领域,尤其是一种低浓度有机废气流化塔。The invention relates to the technical field of air pollution control, in particular to a low-concentration organic waste fluidization tower.

背景技术Background technique

随着人类经济活动和生产的迅速发展,人们在大量消耗能源的同时也将大量的废气和烟尘等物质排入大气,特别是汽油、油漆、各种有机溶剂及其它化学品的大量使用造成了挥发性有机物(VOCs)的排放迅速增加,从而使VOCs成为除CO、SOx、NOx之外的另一重要的气态污染物,其中工业生产部门成为VOCs污染的最主要行业之一。这些有机废气主要包括烃类(丁烷、二氯甲烷)、苯系物(苯、甲苯、二甲苯)、醇类(乙醇、甲醇)、醛酮类(甲醛、丙酮、环己酮)等。这些污染物往往具有成分复杂、种类繁多、毒性大、易转化、难降解易积累、易生物富集、能长期存留在环境中等特点,甚至是致癌致畸致突变的“三致”物质或是干扰人体内分泌物质,严重影响环境质量,影响人类健康,因此削减VOCs的排放量成为各国环境保护工作的一项重要内容。With the rapid development of human economic activities and production, while people consume a lot of energy, they also discharge a lot of waste gas and smoke into the atmosphere, especially the massive use of gasoline, paint, various organic solvents and other chemicals. The emission of volatile organic compounds (VOCs) has increased rapidly, making VOCs another important gaseous pollutant besides CO, SOx, and NOx. Among them, the industrial production sector has become one of the most important industries polluted by VOCs. These organic waste gases mainly include hydrocarbons (butane, methylene chloride), benzene series (benzene, toluene, xylene), alcohols (ethanol, methanol), aldehydes and ketones (formaldehyde, acetone, cyclohexanone), etc. These pollutants often have the characteristics of complex components, various types, high toxicity, easy transformation, refractory degradation and easy accumulation, easy bioaccumulation, and long-term persistence in the environment. Interfering with human endocrine substances seriously affects environmental quality and human health. Therefore, reducing VOCs emissions has become an important part of environmental protection work in various countries.

由于有机废气的污染物往往浓度低、气量大、污染面广,热力焚烧、催化燃烧、冷凝、吸收和吸附等传统的处理技术或多或少会存在着经济、技术的局限性。等离子体技术用于处理各类污染物成为国内外研究的热门之一。它在处理难降降有机废气方面具有处理量大、适用面广、化学反应迅速、易于操作等优点而被广泛应用,然而目前该技术也存在一些问题。Because the pollutants of organic waste gas often have low concentration, large gas volume and wide pollution area, traditional treatment technologies such as thermal incineration, catalytic combustion, condensation, absorption and adsorption will have more or less economic and technical limitations. The use of plasma technology to treat various pollutants has become one of the hot research topics at home and abroad. It is widely used in the treatment of difficult-to-reduce organic waste gas due to its advantages of large processing capacity, wide application range, rapid chemical reaction, and easy operation. However, there are still some problems in this technology at present.

近年来,生物净化技术用于处理有机废气越来越受到重视。生物净化技术是指在滤料介质上培养微生物,微生物利用废气中的有机成分作为碳源和能源,将有机物分解为二氧化碳和水,生物净化技术适合处理低浓度、生物可降解性好的气态污染物。目前,国外许多国家如德国、荷兰、美国和日本等国应用该技术处理有机废气均取得了成功,而我国应用较少。In recent years, more and more attention has been paid to the use of biological purification technology in the treatment of organic waste gas. Biological purification technology refers to the cultivation of microorganisms on the filter medium. Microorganisms use the organic components in the waste gas as carbon sources and energy sources to decompose organic matter into carbon dioxide and water. Biological purification technology is suitable for treating low-concentration, biodegradable gaseous pollution thing. At present, many foreign countries such as Germany, the Netherlands, the United States and Japan have achieved success in the application of this technology to treat organic waste gas, while my country's application is less.

发明内容Contents of the invention

本发明要解决的技术问题是:克服现有有机废气处理中的问题,提供一种低浓度有机废气流化塔,能有效处理各种低浓度有机废气,结构简单,操作方便。The technical problem to be solved by the present invention is: to overcome the existing problems in the treatment of organic waste gas, to provide a low-concentration organic waste gas fluidization tower, which can effectively treat various low-concentration organic waste gases, and has a simple structure and convenient operation.

本发明解决其技术问题所采用的技术方案是:一种低浓度有机废气流化塔,从塔底部向上依次为泥水区、流化区、吸附氧化区、除湿区、活性炭吸附区和排气扇。The technical solution adopted by the present invention to solve the technical problem is: a low-concentration organic waste fluidization tower, which consists of a muddy water area, a fluidization area, an adsorption oxidation area, a dehumidification area, an activated carbon adsorption area, and an exhaust fan from the bottom of the tower upwards. .

所述的泥水区位于整个塔的最下部;所述的泥水区设计成锥形结构,收集来自上部的泥水,锥形结构的底部设有排放阀,排放阀连接塔外的污泥浓缩池。The muddy water area is located at the bottom of the entire tower; the muddy water area is designed as a conical structure to collect muddy water from the upper part, and the bottom of the conical structure is provided with a discharge valve, which is connected to the sludge concentration tank outside the tower.

所述的泥水区和流化区之间设置带有孔洞的隔离板。An isolation plate with holes is arranged between the muddy water zone and the fluidized zone.

所述的流化区内设有流化筒,流化筒为圆柱形筒状结构,位于流化区的中心,流化筒的下端开口位于流化区的底部,上端开口位于流化区的上部,流化筒的下端设有进气管和布气管,所述的布气管设置成同心圆形状;流化筒的上部设有营养液喷淋装置,所述的营养液喷淋装置连接有营养液添加装置,所述的营养液添加装置包括营养液罐和搅拌装置,营养液添加装置通过管路和阀门连通营养液循环泵,所述的营养液喷淋装置为螺旋状喷淋装置,喷射出的液体呈现雾状,且水雾之间交叉融合,不留死角。流化区内充满聚乙烯流化空心球,所述聚乙烯流化空心球具有单位体积生物量大的优点。The fluidization zone is provided with a fluidization cylinder, the fluidization cylinder is a cylindrical structure, located in the center of the fluidization zone, the lower opening of the fluidization cylinder is located at the bottom of the fluidization zone, and the upper opening is located at the bottom of the fluidization zone. In the upper part, the lower end of the fluidization cylinder is provided with an air inlet pipe and an air distribution pipe, and the air distribution pipe is arranged in a concentric shape; the upper part of the fluidization cylinder is provided with a nutrient solution spray device, and the nutrient solution spray device is connected with a nutrient solution Adding device, the nutrient solution adding device includes a nutrient solution tank and a stirring device, the nutrient solution adding device communicates with the nutrient solution circulating pump through pipelines and valves, and the nutrient solution spraying device is a spiral spraying device, spraying out The liquid is in the form of mist, and the water mist intersects and merges without leaving any dead ends. The fluidized area is filled with polyethylene fluidized hollow spheres, which have the advantage of large biomass per unit volume.

进一步的,所述营养液为低浓度有机废气流化塔外的污泥浓缩池的上清液。Further, the nutrient solution is the supernatant of the sludge thickening tank outside the low-concentration organic waste fluidization tower.

所述的吸附氧化区位于流化区的上部,所述的吸附氧化区设有吸附填料,所述的吸附填料由浓缩池污泥、畜禽粪便、木屑和聚乙烯空心球按体积比1:1:5:10混合制成。Described adsorption oxidation zone is positioned at the top of fluidization zone, and described adsorption oxidation zone is provided with adsorption filler, and described adsorption filler is made of thickening tank sludge, livestock and poultry excrement, sawdust and polyethylene hollow ball by volume ratio 1: Made with a 1:5:10 mix.

所述的吸附氧化区上部设有除湿区,除湿区是将气体中的大液滴进行收集,并使之返回,减少气体中的水分,其工作原理是气体进入除湿区,经过一系列弯道,从顶部排出,而水滴由于其质量和动能的作用,在经过弯道部分时,直线下落,冲撞除湿区的表面,并在重力作用下弹回。除湿区设置有丝网除湿器。The upper part of the adsorption oxidation zone is provided with a dehumidification zone. The dehumidification zone collects the large liquid droplets in the gas and returns them to reduce the moisture in the gas. The working principle is that the gas enters the dehumidification zone and passes through a series of curves. , is discharged from the top, and the water droplets, due to their mass and kinetic energy, fall straight down when passing through the curved part, collide with the surface of the dehumidification area, and bounce back under the action of gravity. The dehumidification area is equipped with a wire mesh dehumidifier.

所述的除湿区上部设有活性炭吸附区,所述的活性炭吸附区中设置活性炭,活性炭要求具有孔隙发达、比表面积大、吸附速度快、抗摩擦、耐冲洗的优点,经过较长时间的运行,发现活性炭变粘,气速降低时需及时更换活性炭。The upper part of the dehumidification area is provided with an activated carbon adsorption area, and activated carbon is set in the activated carbon adsorption area. The activated carbon is required to have the advantages of developed pores, large specific surface area, fast adsorption speed, anti-friction, and washing resistance. , It is found that the activated carbon becomes viscous, and the activated carbon needs to be replaced in time when the gas velocity decreases.

具体的,所述的低浓度有机废气流化塔中间为圆柱形、上下两端为圆锥形塔体,所述塔体上开设有观测口和检修更换口,塔体体积大小根据待处理气体量的多少而定,采用立式竖直放置。Specifically, the middle of the low-concentration organic waste fluidization tower is cylindrical, and the upper and lower ends are conical towers. The tower is provided with observation ports and inspection and replacement ports. It depends on the number, and it is placed vertically.

为便于处理完的洁净气体排出,所述的低浓度有机废气流化塔最上部的圆锥形塔体处安装有排气扇。In order to facilitate the discharge of the treated clean gas, an exhaust fan is installed at the uppermost conical tower body of the low-concentration organic waste fluidization tower.

本发明的有益效果是,废气通过进气管和布气管进入流化区内,布气管实现均匀布气,流化筒内的气流带动聚乙烯流化空心球产生流化作用,并向上流动,同时对聚乙烯流化空心球进行冲刷,气流带动聚乙烯流化空心球进入流化筒的周围区域,并在重力的作用下不断从上往下移动,同时营养液喷淋装置对聚乙烯流化空心球喷洒营养液,聚乙烯流化空心球上的微生物利用营养液中的营养物质和废气中的污染物进行自身繁殖,聚乙烯流化空心球脱落的污泥和多余的营养液流入泥水区中,通过排放阀排入塔外的污泥浓缩池,污泥浓缩池的上清液作为营养液,通过管道和循环泵再进入营养液喷淋装置,循环使用;废气上升进入吸附氧化区,废气中的污染物被吸附填料中的微生物吸附并发生生化反应;气体然后进入除湿区,气体中的液滴在这里被拦截下来;接着气体进入活性炭吸附区,气体中所夹杂的物质和液滴在这里被拦截吸附下来,至此废气被处理成洁净的气体,实现达标排放;本发明的低浓度有机废气流化塔结构简单,易于制造,操作方便,运行成本低,能有效处理各种低浓度有机废气。The beneficial effect of the present invention is that the exhaust gas enters the fluidization zone through the air inlet pipe and the air distribution pipe, the air distribution pipe realizes uniform air distribution, and the airflow in the fluidization cylinder drives the polyethylene fluidization hollow ball to produce fluidization and flow upwards, and at the same time The polyethylene fluidized hollow balls are washed, and the airflow drives the polyethylene fluidized hollow balls into the surrounding area of the fluidized cylinder, and continuously moves from top to bottom under the action of gravity. At the same time, the nutrient solution spray device The ball sprays the nutrient solution, and the microorganisms on the polyethylene fluidized hollow ball use the nutrients in the nutrient solution and the pollutants in the exhaust gas to reproduce themselves, and the sludge and excess nutrient solution shed by the polyethylene fluidized hollow ball flow into the muddy water area , discharged into the sludge thickening tank outside the tower through the discharge valve, the supernatant of the sludge thickening tank is used as the nutrient solution, and then enters the nutrient solution spraying device through the pipeline and the circulating pump for recycling; the waste gas rises into the adsorption oxidation zone, and the waste gas The pollutants in the adsorption filler are adsorbed by the microorganisms in the adsorption filler and undergo biochemical reactions; the gas then enters the dehumidification zone, where the liquid droplets in the gas are intercepted; then the gas enters the activated carbon adsorption zone, and the substances and liquid droplets in the gas It is intercepted and adsorbed here, and the waste gas is processed into clean gas so far to achieve standard discharge; the low-concentration organic waste fluidization tower of the present invention is simple in structure, easy to manufacture, easy to operate, low in operating cost, and can effectively treat various low-concentration organic wastes. exhaust gas.

附图说明Description of drawings

下面结合附图和实施例对本发明进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

图1是本发明的实施例的结构示意图;Fig. 1 is the structural representation of the embodiment of the present invention;

图中:1.泥水区,1-1.排放阀,1-2.隔离板,2.流化区,2-1.流化筒,2-2.进气管,2-3.布气管,2-4.营养液喷淋装置,2-5.营养液添加装置,2-6.营养液循环泵,2-7.聚乙烯流化空心球,3.吸附氧化区,3-1.吸附填料,4.除湿区,5.活性炭吸附区,6.排气扇。In the figure: 1. muddy water area, 1-1. discharge valve, 1-2. isolation plate, 2. fluidization area, 2-1. fluidization cylinder, 2-2. intake pipe, 2-3. air distribution pipe, 2-4. Nutrient solution spraying device, 2-5. Nutrient solution adding device, 2-6. Nutrient solution circulation pump, 2-7. Polyethylene fluidized hollow ball, 3. Adsorption oxidation zone, 3-1. Adsorption Filling, 4. Dehumidification zone, 5. Activated carbon adsorption zone, 6. Exhaust fan.

具体实施方式Detailed ways

现在结合附图对本发明作进一步详细的说明。这些附图均为简化的示意图,仅以示意方式说明本发明的基本结构,因此其仅显示与本发明有关的构成。The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

实施例Example

如图1所示的本发明的一种低浓度有机废气流化塔,从塔底部向上依次为泥水区1、流化区2、吸附氧化区3、除湿区4、活性炭吸附区5和排气扇6。As shown in Figure 1, a low-concentration organic waste fluidization tower of the present invention, from the bottom of the tower upwards, is followed by muddy water zone 1, fluidization zone 2, adsorption oxidation zone 3, dehumidification zone 4, activated carbon adsorption zone 5 and exhaust fan6.

所述的泥水区1位于整个塔的最下部;所述的泥水区1设计成锥形结构,收集来自上部的泥水,锥形结构的底部设有排放阀1-1,排放阀1-1连接塔外的污泥浓缩池。The muddy water area 1 is located at the bottom of the entire tower; the muddy water area 1 is designed as a conical structure to collect muddy water from the upper part, and the bottom of the conical structure is provided with a discharge valve 1-1, which is connected to the The sludge thickening tank outside the tower.

所述的泥水区1和流化区2之间设置带有孔洞的隔离板1-2。A separation plate 1-2 with holes is arranged between the muddy water zone 1 and the fluidized zone 2.

所述的流化区2内设有流化筒2-1,流化筒2-1为圆柱形筒状结构,位于流化区2的中心,流化筒2-1的下端开口位于流化区的底部,上端开口位于流化区的上部,流化筒2-1的下端设有进气管2-2和布气管2-3,所述的布气管2-3设置成同心圆形状;流化筒2-1的上部设有营养液喷淋装置2-4,所述的营养液喷淋装置2-4连接有营养液添加装置2-5,所述的营养液添加装置包括营养液罐和搅拌装置,营养液添加装置通过管路和阀门连通营养液循环泵2-6,所述的营养液喷淋装置2-4为螺旋状喷淋装置,喷射出的液体呈现雾状,且水雾之间交叉融合,不留死角。流化区内充满聚乙烯流化空心球2-7,所述聚乙烯流化空心球具有单位体积生物量大的优点。The fluidization zone 2 is provided with a fluidization cylinder 2-1, the fluidization cylinder 2-1 is a cylindrical cylindrical structure, located in the center of the fluidization zone 2, and the lower end opening of the fluidization cylinder 2-1 is located in the fluidization zone. At the bottom of the zone, the upper end opening is located at the top of the fluidization zone, and the lower end of the fluidization cylinder 2-1 is provided with an air inlet pipe 2-2 and an air distribution pipe 2-3, and the air distribution pipe 2-3 is arranged in a concentric circle shape; the fluidization The upper part of the cylinder 2-1 is provided with a nutrient solution spraying device 2-4, and the nutrient solution spraying device 2-4 is connected with a nutrient solution adding device 2-5, and the nutrient solution adding device includes a nutrient solution tank and The stirring device and the nutrient solution adding device are connected to the nutrient solution circulating pump 2-6 through pipelines and valves. The nutrient solution spraying device 2-4 is a spiral spraying device, and the sprayed liquid is in the form of mist, and the water mist Intersect and merge between them without leaving any dead ends. The fluidized area is filled with polyethylene fluidized hollow balls 2-7, and the polyethylene fluidized hollow balls have the advantage of large biomass per unit volume.

进一步的,所述营养液为低浓度有机废气流化塔外的污泥浓缩池的上清液。Further, the nutrient solution is the supernatant of the sludge thickening tank outside the low-concentration organic waste fluidization tower.

所述的吸附氧化区3位于流化区2的上部,所述的吸附氧化区3设有吸附填料3-1,所述的吸附填料3-1由浓缩池污泥、畜禽粪便、木屑和聚乙烯空心球按体积比1:1:5:10混合制成。The adsorption oxidation zone 3 is located on the upper part of the fluidized zone 2, and the adsorption oxidation zone 3 is provided with an adsorption filler 3-1, and the adsorption filler 3-1 is composed of thickening pool sludge, livestock manure, sawdust and Polyethylene hollow spheres are made by mixing them at a volume ratio of 1:1:5:10.

所述的吸附氧化区上部设有除湿区4,除湿区4是将气体中的大液滴进行收集,并使之返回,减少气体中的水分,其工作原理是气体进入除湿区4,经过一系列弯道,从顶部排出,而水滴由于其质量和动能的作用,在经过弯道部分时,直线下落,冲撞除湿区的表面,并在重力作用下弹回。除湿区设置有丝网除湿器。The upper part of the adsorption oxidation zone is provided with a dehumidification zone 4. The dehumidification zone 4 collects the large liquid droplets in the gas and returns them to reduce the moisture in the gas. The working principle is that the gas enters the dehumidification zone 4 and passes through a A series of curves are discharged from the top, and the water droplets, due to their mass and kinetic energy, fall straight down when passing through the curves, collide with the surface of the dehumidification area, and bounce back under the action of gravity. The dehumidification area is equipped with a wire mesh dehumidifier.

所述的除湿区上部设有活性炭吸附区5,所述的活性炭吸附区5中设置活性炭,活性炭要求具有孔隙发达、比表面积大、吸附速度快、抗摩擦、耐冲洗的优点,经过较长时间的运行,发现活性炭变粘,气速降低时需及时更换活性炭。The upper part of the dehumidification area is provided with an activated carbon adsorption area 5, and activated carbon is arranged in the described activated carbon adsorption area 5. The activated carbon is required to have the advantages of developed pores, large specific surface area, fast adsorption speed, anti-friction, and washing resistance. It is found that the activated carbon becomes viscous, and the activated carbon needs to be replaced in time when the gas velocity decreases.

具体的,所述的低浓度有机废气流化塔中间为圆柱形、上下两端为圆锥形塔体,所述塔体上开设有观测口和检修更换口,塔体体积大小根据待处理气体量的多少而定,采用立式竖直放置。Specifically, the middle of the low-concentration organic waste fluidization tower is cylindrical, and the upper and lower ends are conical towers. The tower is provided with observation ports and inspection and replacement ports. It depends on the number, and it is placed vertically.

为便于处理完的洁净气体排出,所述的低浓度有机废气流化塔最上部的圆锥形塔体处安装有排气扇6。In order to facilitate the discharge of the treated clean gas, an exhaust fan 6 is installed at the uppermost conical tower body of the low-concentration organic waste fluidization tower.

本发明的有益效果是:废气通过进气管2-2和布气管2-3进入流化区2内,布气管2-3实现均匀布气,流化筒2-1内的气流带动聚乙烯流化空心球2-7产生流化作用,并向上流动,同时对聚乙烯流化空心球2-7进行冲刷,气流带动聚乙烯流化空心球2-7进入流化筒的周围区域,并在重力的作用下不断从上往下移动,同时营养液喷淋装置2-4对聚乙烯流化空心球喷洒营养液,聚乙烯流化空心球上的微生物利用营养液中的营养物质和废气中的污染物进行自身繁殖,聚乙烯流化空心球2-7脱落的污泥和多余的营养液流入泥水区1中,通过排放阀1-1排入塔外的污泥浓缩池,污泥浓缩池的上清液作为营养液,通过管道和循环泵再进入营养液喷淋装置2-4,循环使用;废气上升进入吸附氧化区3,废气中的污染物被吸附填料3-1中的微生物吸附并发生生化反应;气体然后进入除湿区4,气体中的液滴在这里被拦截下来;接着气体进入活性炭吸附区5,气体中所夹杂的物质和液滴在这里被拦截吸附下来,至此废气被处理成洁净的气体,实现达标排放。The beneficial effect of the present invention is that the exhaust gas enters the fluidized zone 2 through the air inlet pipe 2-2 and the air distribution pipe 2-3, the air distribution pipe 2-3 realizes uniform air distribution, and the airflow in the fluidization cylinder 2-1 drives the polyethylene fluidization The hollow balls 2-7 produce fluidization and flow upwards, and at the same time scour the polyethylene fluidized hollow balls 2-7, and the airflow drives the polyethylene fluidized hollow balls 2-7 into the surrounding area of the fluidization cylinder, and Under the action of continuous movement from top to bottom, at the same time, the nutrient solution spraying device 2-4 sprays the nutrient solution on the polyethylene fluidized hollow sphere, and the microorganisms on the polyethylene fluidized hollow sphere use the nutrient substance in the nutrient solution and the waste gas. Pollutants reproduce themselves, and the sludge and excess nutrient solution shed by polyethylene fluidized hollow balls 2-7 flow into the muddy water area 1, and are discharged into the sludge thickening tank outside the tower through the discharge valve 1-1, and the sludge thickening tank The supernatant is used as the nutrient solution, and then enters the nutrient solution spraying device 2-4 through the pipeline and the circulating pump for recycling; the waste gas rises into the adsorption oxidation zone 3, and the pollutants in the waste gas are adsorbed by the microorganisms in the adsorption packing 3-1 And a biochemical reaction occurs; the gas then enters the dehumidification zone 4, where the liquid droplets in the gas are intercepted; then the gas enters the activated carbon adsorption zone 5, where the substances and liquid droplets contained in the gas are intercepted and adsorbed, and the exhaust gas is thus Treat it into clean gas to achieve emission standards.

以上述依据本发明的理想实施例为启示,通过上述的说明内容,相关工作人员完全可以在不偏离本项发明技术思想的范围内,进行多样的变更以及修改。本项发明的技术性范围并不局限于说明书上的内容,必须要根据权利要求范围来确定其技术性范围。Inspired by the above-mentioned ideal embodiment according to the present invention, through the above-mentioned description content, relevant workers can make various changes and modifications within the scope of not departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, but must be determined according to the scope of the claims.

Claims (1)

1. a kind of low-concentration organic exhaust gas fluidization tower, it is characterised in that:It is followed successively by muddy water area (1), fluidization regions upwards from tower bottom (2), adsorption and oxidation area (3), dehumidifying area (4), activated carbon adsorption area (5) and exhaust fan (6);
The muddy water area (1) is positioned at the lowest part of entire tower, and the muddy water area (1) is designed to pyramidal structure, and collection comes from The muddy water on top, the bottom of pyramidal structure are equipped with drain valve (1-1), and drain valve (1-1) connects the sludge concentration tank outside tower;
The isolation board (1-2) of hole is provided between the muddy water area (1) and fluidization regions (2);
Fluidisation cylinder (2-1) is equipped in the fluidization regions (2), fluidisation cylinder (2-1) is cylindrical barrel structure, positioned at fluidization regions (2) center, the lower ending opening of fluidisation cylinder (2-1) are located at the bottom of fluidization regions, and upper end opening is located at the top of fluidization regions, fluidizes The lower part of cylinder (2-1) is equipped with air inlet pipe (2-2) and gas distribution pipe (2-3), and the gas distribution pipe (2-3) is arranged to concentric circles; The top for fluidizing cylinder (2-1) is equipped with nutrient solution spray equipment (2-4), and the nutrient solution spray equipment (2-4) connection is nutritious Liquid adding set (2-5), the nutrient solution adding device include nutrient tank and agitating device, and nutrient solution adding device passes through Pipeline connects nutrient solution circulating pump (2-6) with valve, and the nutrient solution spray equipment (2-4) is helical form spray equipment, is sprayed Mist, and mixing together between water mist is presented in the liquid of injection, does not stay dead angle;In fluidization regions hollow ball is fluidized full of polyethylene (2-7), the polyethylene fluidisation hollow ball have the advantages that unit volume biomass is big;
Supernatant of the nutrient solution for the sludge concentration tank outside low-concentration organic exhaust gas fluidization tower;
The adsorption and oxidation area (3) is positioned at the top of fluidization regions (2), and the adsorption and oxidation area (3) is equipped with adsorption stuffing (3- 1), the adsorption stuffing (3-1) is by concentration basin sludge, feces of livestock and poultry, sawdust and polyethylene hollow ball by volume 1:1:5: 10 are mixed;
The adsorption and oxidation area top is equipped with dehumidifying area (4), and dehumidifying area (4) is to be collected the big drop in gas, and It is allowed to return, reduces the moisture in gas, operation principle is that gas enters dehumidifying area (4), by a series of bends, from top Discharge, and water droplet when by racetrack portion, collides the surface in dehumidifying area, and in gravity due to the effect of its quality and kinetic energy It rebounds under effect;Dehumidifying area is provided with silk screen dehumidifier;
The dehumidifying area top is equipped with activated carbon adsorption area (5), setting activated carbon in the activated carbon adsorption area (5), living Property charcoal the advantages of requiring hole prosperity, large specific surface area, adsorption rate fast, anti-friction, resistance to flushing, by the long period Operation finds to replace in time when activated carbon becomes sticky, gas velocity reduces;
The low-concentration organic exhaust gas fluidization tower centre is cylindrical, upper and lower ends are conical tower body, is offered on tower body Observation port and maintenance replacement port, tower body volume size according to pending gas flow number depending on, using vertical vertical placement;
Clean gas for ease of having handled is discharged, at the conical tower body of the low-concentration organic exhaust gas fluidization tower topmost Exhaust fan (6) is installed.
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