CN107497260A - The free radical collaboration seaweed bio charcoal that discharges removes the device of organic matter and fine particle - Google Patents
The free radical collaboration seaweed bio charcoal that discharges removes the device of organic matter and fine particle Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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Abstract
本发明提供了一种放电自由基协同海藻生物炭脱除有机物和细颗粒物的装置，包括进气通道、主反应器、尾部通道、引风机和高压电源；所述进气通道、主反应器、尾部通道、引风机依次连接；所述主反应器包括壳体、导流板、初级过滤装置、若干放电自由基协同海藻生物炭处理单元，绝缘层、高电压输入线、接地线。本发明充分发挥了等离子体和海藻生物炭的协同作用，利用低温等离子体放电产生的自由基等高活性物质，提高了海藻生物炭活性，提高了净化效率和速率，解决普通空气净化器滤芯频繁更换的问题。低温等离子体协同海藻生物炭的反应装置可广泛应用于空气净化领域，具有节能、无污染、使用周期长等优势。
The invention provides a device for discharging free radicals to cooperate with seaweed biochar to remove organic matter and fine particles, including an air intake channel, a main reactor, a tail channel, an induced draft fan and a high-voltage power supply; the air intake channel, the main reactor, The tail channel and the induced draft fan are connected in sequence; the main reactor includes a shell, a deflector, a primary filter device, a number of discharging free radicals in cooperation with seaweed biochar processing units, an insulating layer, a high voltage input line, and a grounding line. The present invention fully exerts the synergistic effect of plasma and seaweed biochar, utilizes high-active substances such as free radicals produced by low-temperature plasma discharge, improves the activity of seaweed biochar, improves the purification efficiency and speed, and solves the problem of frequent air purifier filter elements. replacement problem. The reaction device of low-temperature plasma combined with seaweed biochar can be widely used in the field of air purification, and has the advantages of energy saving, no pollution, and long service life.
Description
技术领域technical field
本发明属于空气污染控制领域，尤其涉及一种放电自由基协同海藻生物炭脱除有机物和细颗粒物的装置及其工作方法。The invention belongs to the field of air pollution control, and in particular relates to a device and a working method for removing organic matter and fine particles by discharging free radicals in cooperation with seaweed biochar.
背景技术Background technique
随着我国的经济增长，空气污染已经成为危害生态环境和人类身体健康的重要因素。工业制造和能源开采过程中会产生成分复杂的含有机化合物的有害气体，如挥发性有机化合物(VOCs)、多环芳烃(PAHs)等。有机废气是引起温室效应的重要来源，有些有机废气是形成光化学烟雾及PM2.5的重要前驱体，有些甚至具有强烈的致癌、致突变及致畸性。我国VOCs的绝对排放量巨大，2013年我国工业VOCs排放量为2935.6万吨，预计2020年我国工业源VOCs排放量将增长至3325.9万吨。低浓度有机废气由于可燃成份稀薄，处理非常困难，常直接排空，造成了大量能源浪费，导致了环境污染和温室效应的加剧。因此，发展高效低能耗处理有机废气的方法具有重要的理论意义和应用前景，已成为国内外的研究热点和难点。With my country's economic growth, air pollution has become an important factor that endangers the ecological environment and human health. Harmful gases containing complex organic compounds, such as volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs), are produced during industrial manufacturing and energy extraction. Organic waste gas is an important source of the greenhouse effect. Some organic waste gases are important precursors for the formation of photochemical smog and PM2.5, and some even have strong carcinogenic, mutagenic and teratogenic properties. The absolute emission of VOCs in my country is huge. In 2013, the emission of industrial VOCs in my country was 29.356 million tons. It is estimated that the emission of VOCs from industrial sources in my country will increase to 33.259 million tons in 2020. Low-concentration organic waste gas is very difficult to deal with due to the thinness of combustible components, and it is often emptied directly, causing a lot of energy waste, leading to environmental pollution and the aggravation of the greenhouse effect. Therefore, the development of efficient and low-energy treatment methods for organic waste gas has important theoretical significance and application prospects, and has become a research hotspot and difficulty at home and abroad.
海藻生物炭是海藻热解的产物，其孔隙丰富，且含有较多的K、Na等活性离子。同时由于海藻类生物质生活在海洋中，产量高、不占用耕地，且特定季节还出现泛滥成灾，其资源开发的潜力巨大。因此海藻生物炭作为一种吸附或催化材料，应用到能源环境领域中，具有较强理论意义和实用价值。Seaweed biochar is a product of pyrolysis of seaweed, which is rich in pores and contains more active ions such as K and Na. At the same time, because seaweed biomass lives in the ocean, has high yield, does not occupy arable land, and is also flooded in certain seasons, its potential for resource development is huge. Therefore, seaweed biochar, as an adsorption or catalytic material, has strong theoretical significance and practical value in the field of energy and environment.
发明内容Contents of the invention
本发明的目的是针对目前室内空气或烟气净化成本高，吸附剂寿命短，且可能有二次污染的技术问题，利用直流电晕放电产生的自由基与采用海藻热解制取的生物质焦之间的协同作用，提供一直可实现低温无污染脱除空气或烟气中有机物的直流电晕放电协同催化氧化脱除空气和烟气中有机物的方法。The purpose of the present invention is to solve the technical problems of high cost of indoor air or flue gas purification, short lifespan of adsorbent, and possible secondary pollution. The synergistic effect between these two methods provides a method for removing organic substances in air and flue gas through DC corona discharge synergistic catalytic oxidation that can achieve low-temperature and pollution-free removal of organic substances in air and flue gas.
本发明是通过如下技术方案实现的：The present invention is achieved through the following technical solutions:
一种放电自由基协同海藻生物炭脱除有机物和细颗粒物的装置，包括进气通道、主反应器、尾部通道、引风机和高压电源；所述进气通道、主反应器、尾部通道、引风机依次连接；A device for discharging free radicals to cooperate with seaweed biochar to remove organic matter and fine particles, including an air intake channel, a main reactor, a tail channel, an induced draft fan and a high-voltage power supply; The fans are connected sequentially;
所述主反应器包括壳体、导流板、初级过滤装置、若干放电自由基协同海藻生物炭处理单元，绝缘层、高电压输入线、接地线；The main reactor includes a shell, a deflector, a primary filter device, a plurality of discharge free radicals cooperative seaweed biochar processing units, an insulating layer, a high voltage input line, and a grounding line;
从进气通道到尾部通道，壳体内部依次设有第一导流板、初级过滤装置、若干放电自由基协同海藻生物炭处理单元、第二导流板；每个放电自由基协同海藻生物炭处理单元包括一个多孔板状电极、多条线状电极、带有海藻生物炭夹层的毛毡滤料；所述带有海藻生物炭夹层的毛毡滤料置于多孔板状电极和线状电极之间，且居中放置；线状电极之间相互平行，且线状电极平行于多孔板状电极，每条线状电极与多孔板状电极的间距相同；From the air intake channel to the tail channel, the shell is equipped with a first deflector, a primary filter device, a number of discharge radicals in cooperation with algae biochar treatment units, and a second deflector; each discharge radical in cooperation with algae biochar The processing unit includes a porous plate electrode, a plurality of wire electrodes, and a felt filter material with an interlayer of seaweed biochar; the felt filter material with an interlayer of seaweed biochar is placed between the porous plate electrode and the wire electrode , and placed in the center; the linear electrodes are parallel to each other, and the linear electrodes are parallel to the porous plate electrodes, and the distance between each linear electrode and the porous plate electrodes is the same;
所述多孔板状电极、线状电极、带有海藻生物炭夹层的毛毡滤料均与壳体连接，并通过绝缘层绝缘，壳体接地；The porous plate electrode, the wire electrode, and the felt filter material with seaweed biochar interlayer are all connected to the shell, and are insulated by an insulating layer, and the shell is grounded;
所述线状电极均通过高电压输入线与高压电源输出端连接；多孔板状电极通过接地线接地。The linear electrodes are all connected to the output end of the high voltage power supply through a high voltage input line; the porous plate electrodes are grounded through a grounding wire.
进一步，所述主反应器中放电自由基协同海藻生物炭处理单元的数量至少为2个。Further, the number of discharge free radical cooperative seaweed biochar treatment units in the main reactor is at least two.
进一步，每个放电自由基协同海藻生物炭处理单元之间的间距为100～500mm。Further, the distance between each discharge free radical cooperative seaweed biochar processing unit is 100-500 mm.
进一步，所述两个线状电极之间的间距为100～200mm，多孔板状电极与线状电极之间的间距为20～100mm。Further, the distance between the two linear electrodes is 100-200 mm, and the distance between the porous plate electrode and the linear electrode is 20-100 mm.
进一步，所述带有海藻生物炭夹层的毛毡滤料的厚度为多孔板状电极与线状电极之间的距离的30％～100％。Further, the thickness of the felt filter material with seaweed biochar interlayer is 30%-100% of the distance between the porous plate electrode and the wire electrode.
进一步，所述高压电源输出电压为5kV～50kV。Further, the output voltage of the high-voltage power supply is 5kV˜50kV.
进一步，所述初级过滤装置的过滤层采用可重复使用的滤网。Further, the filter layer of the primary filter device adopts a reusable filter screen.
进一步，主反应器的壳体的材料为不锈钢板，结构为方形结构。Further, the shell of the main reactor is made of stainless steel plate and has a square structure.
进一步，所述主反应器与高压电源之间设有电压、电流检测器和漏电保护装置。Further, voltage and current detectors and leakage protection devices are provided between the main reactor and the high-voltage power supply.
所述的放电自由基协同海藻生物炭脱除有机物和细颗粒物的装置的工作方法，步骤如下：The working method of the device for removing organic matter and fine particles in cooperation with seaweed biochar by discharging free radicals, the steps are as follows:
富含有机物的待净化的气体由引风机作用进入装置的进气通道，经导流板整流，经初级过滤装置过滤掉大颗粒物之后，进入放电自由基协同海藻生物炭处理单元；气体首先穿过多孔板状电极和带有海藻生物炭夹层的毛毡滤料，颗粒物被带有海藻生物炭夹层的毛毡滤料过滤在外面，有机物被滤料夹层里的的海藻生物炭吸附，具有氧化性能的自由基经多孔板状电极与线状电极放电产生；多孔板状电极与线状电极之间在一定电压下进行电晕放电高能电子、O3自由基、O自由基、OH自由基、N自由基等活性粒子，所述高能电子和自由基进入海藻生物炭表面的孔隙中，高能电子与有机物分子碰撞，使其化学键断裂，并被激化，被高能电子裂解激化的有机物分子在放电自由基的作用下被氧化成二氧化碳和水等无害物质；或者放电自由基直接与吸附在海藻生物炭表面的有机物反应，使其转化成无害的二氧化碳和水等；净化后的气体随气流进入下一级放电自由基协同海藻生物炭处理单元；气体经多级处理后，达到可排放的标准，进入尾部通道，排出。The gas rich in organic matter to be purified enters the air intake channel of the device through the action of the induced draft fan, is rectified by the deflector, and after filtering out large particles through the primary filter device, it enters the discharge free radical cooperative seaweed biochar treatment unit; the gas first passes through The porous plate electrode and the felt filter material with seaweed biochar interlayer, the particulate matter is filtered out by the felt filter material with seaweed biochar interlayer, and the organic matter is absorbed by the seaweed biochar in the filter material interlayer, which has the freedom of oxidation Radicals are generated by the discharge of porous plate electrodes and linear electrodes; corona discharge high-energy electrons, O 3 free radicals, O free radicals, OH free radicals, and N free radicals are carried out between the porous plate electrodes and the linear electrodes at a certain voltage and other active particles, the high-energy electrons and free radicals enter the pores on the surface of seaweed biochar, and the high-energy electrons collide with organic molecules to break their chemical bonds and be excited. oxidized into harmless substances such as carbon dioxide and water; or discharge free radicals directly react with organic matter adsorbed on the surface of seaweed biochar to convert them into harmless carbon dioxide and water; the purified gas enters the next stage with the airflow Discharge free radicals cooperate with seaweed biochar treatment unit; after multi-stage treatment, the gas reaches the dischargeable standard, enters the tail channel, and is discharged.
有益效果：Beneficial effect:
(1)海藻生物炭是一种采用海藻热解制取的生物质焦，具有较大的比表面积和发达的空隙结构，含有的K、Na等物质是极好的吸附有机物的活性位。且海藻是储量广泛的可再生资源，具有广阔的开发展和应用前景。海藻生物炭对有机物，尤其是对大分子有机物具有很强的吸附性。(1) Seaweed biochar is a kind of biomass coke produced by pyrolysis of seaweed. It has a large specific surface area and developed pore structure. The K, Na and other substances contained in it are excellent active sites for adsorbing organic matter. And seaweed is a renewable resource with a wide range of reserves, and has broad development and application prospects. Seaweed biochar has strong adsorption to organic matter, especially to macromolecular organic matter.
(2)海藻生物炭对有机物的吸附作用，提高了反应物浓度，海藻生物炭与自由基协同作用，延长了有机物与放电自由基的接触时间，提高了有机物的氧化效率，提高了能量利用效率。(2) The adsorption of seaweed biochar to organic matter increases the concentration of reactants, and the synergistic effect of seaweed biochar and free radicals prolongs the contact time between organic matter and discharge free radicals, improves the oxidation efficiency of organic matter, and improves energy utilization efficiency .
(3)高能电子和放电自由基作用于海藻生物炭表面，能提高海藻生物炭表面活性，增强海藻生物炭的吸附性。(3) High-energy electrons and discharge radicals act on the surface of seaweed biochar, which can improve the surface activity of seaweed biochar and enhance the adsorption of seaweed biochar.
(4)此外，因为海藻生物炭吸附的有机物源源不断的被氧化后排出，所以此装置中的海藻生物炭具有很长的使用寿命。(4) In addition, because the organic matter adsorbed by the seaweed biochar is continuously oxidized and discharged, the seaweed biochar in this device has a long service life.
该方法及装置具有能耗低、无二次污染和具有经济效益等优点，实现了低温低成本无污染脱除空气中有机物的目的。The method and device have the advantages of low energy consumption, no secondary pollution, economic benefits, etc., and realize the purpose of removing organic matter in the air at low temperature, low cost, and pollution-free.
所述的有机物包括脂肪烃类化合物如己烷、庚烷等、芳香烃类化合物如苯、甲苯等、醛类化合物如甲醛、乙醛等、醇类化合物甲醇、乙醇等、酮类化合物丙酮、一丁酮、环己酮等、脂类化合物乙酸乙酯、乙酸丁酯和乙酸戊酯等、醚类如乙醚、氯乙醚等等。The organic matter includes aliphatic hydrocarbon compounds such as hexane, heptane, etc., aromatic hydrocarbon compounds such as benzene, toluene, etc., aldehyde compounds such as formaldehyde, acetaldehyde, etc., alcohol compounds such as methanol, ethanol, etc., ketone compounds such as acetone, Butanone, cyclohexanone, etc., lipid compounds such as ethyl acetate, butyl acetate, and amyl acetate, etc., ethers such as diethyl ether, chloroethyl ether, etc.
本发明充分发挥了等离子体和海藻生物炭的协同作用，利用低温等离子体放电产生的自由基等高活性物质，提高了海藻生物炭活性，提高了净化效率和速率，解决普通空气净化器滤芯频繁更换的问题。低温等离子体协同海藻生物炭的反应装置可广泛应用于空气净化领域，具有节能、无污染、使用周期长等优势。The present invention fully exerts the synergistic effect of plasma and seaweed biochar, utilizes high-active substances such as free radicals produced by low-temperature plasma discharge, improves the activity of seaweed biochar, improves the purification efficiency and speed, and solves the problem of frequent air purifier filter elements. replacement problem. The reaction device of low-temperature plasma combined with seaweed biochar can be widely used in the field of air purification, and has the advantages of energy saving, no pollution, and long service life.
附图说明Description of drawings
图1是本发明装置的系统示意图；Fig. 1 is a schematic diagram of the system of the device of the present invention;
图2是图1中本发明放电自由基协同海藻生物炭处理单元的内部结构示意图，图a为从尾部通道观察的视图，图b为从进气通道观察的视图。Fig. 2 is a schematic diagram of the internal structure of the discharge radical synergistic seaweed biochar treatment unit of the present invention in Fig. 1, Fig. a is a view observed from the tail channel, and Fig. b is a view observed from the air intake channel.
图中：1-壳体、2-进气通道、3-第一导流板、4-初级过滤装置、5-多孔板状电极、6-线状电极、7-带有海藻生物炭夹层的毛毡滤料、8-绝缘层、9-高电压输入线、10-接地线、11-尾部通道、12-引风机、13-高压电源、14-清灰斗、15-接地装置，16-第二导流板。In the figure: 1-shell, 2-intake channel, 3-first deflector, 4-primary filter device, 5-porous plate electrode, 6-wire electrode, 7-with seaweed biochar interlayer Felt filter material, 8-insulation layer, 9-high voltage input line, 10-grounding wire, 11-tail channel, 12-induced fan, 13-high voltage power supply, 14-cleaning hopper, 15-grounding device, 16-section Two deflectors.
具体实施方式detailed description
下面结合附图对本发明的技术内容及实施方式进行进一步具体说明。The technical contents and implementation modes of the present invention will be further described in detail below in conjunction with the accompanying drawings.
如图1、2所示，一种放电自由基协同海藻生物炭脱除有机物和细颗粒物的装置，包括进气通道2、主反应器、尾部通道11、引风机12和高压电源13；所述进气通道2、主反应器、尾部通道11、引风机12依次连接；As shown in Figures 1 and 2, a device for discharging free radicals to cooperate with seaweed biochar to remove organic matter and fine particles includes an intake channel 2, a main reactor, a tail channel 11, an induced draft fan 12 and a high-voltage power supply 13; The air intake channel 2, the main reactor, the tail channel 11, and the induced draft fan 12 are connected in sequence;
所述主反应器包括壳体1、导流板、初级过滤装置4、若干放电自由基协同海藻生物炭处理单元，绝缘层8、高电压输入线9、接地线10；The main reactor includes a housing 1, a deflector, a primary filter device 4, a number of discharge radicals in cooperation with seaweed biochar processing units, an insulating layer 8, a high voltage input line 9, and a grounding line 10;
从进气通道2到尾部通道11，壳体1内部依次设有第一导流板3、初级过滤装置4、若干放电自由基协同海藻生物炭处理单元、第二导流板16；每个放电自由基协同海藻生物炭处理单元包括一个多孔板状电极5、多条线状电极6、带有海藻生物炭夹层的毛毡滤料7；所述带有海藻生物炭夹层的毛毡滤料7置于多孔板状电极5和线状电极6之间，且居中放置；线状电极6之间相互平行，且线状电极6平行于多孔板状电极5，每条线状电极6与多孔板状电极5的间距相同；From the intake channel 2 to the tail channel 11, the inside of the housing 1 is sequentially provided with a first deflector 3, a primary filter device 4, a number of discharge free radicals in cooperation with seaweed biochar processing units, and a second deflector 16; The free radical synergistic seaweed biochar treatment unit comprises a porous plate electrode 5, a plurality of wire electrodes 6, a felt filter material 7 with an interlayer of seaweed biochar; the felt filter material 7 with an interlayer of seaweed biochar is placed in Between the porous plate electrode 5 and the linear electrode 6, and placed in the center; the linear electrodes 6 are parallel to each other, and the linear electrode 6 is parallel to the porous plate electrode 5, and each linear electrode 6 is connected to the porous plate electrode. 5 with the same spacing;
所述多孔板状电极5、线状电极6、带有海藻生物炭夹层的毛毡滤料7均与壳体1连接，并通过绝缘层8绝缘，壳体1接地；The porous plate electrode 5, the wire electrode 6, and the felt filter material 7 with a seaweed biochar interlayer are all connected to the housing 1, and are insulated by an insulating layer 8, and the housing 1 is grounded;
所述线状电极6均通过高电压输入线9与高压电源13输出端连接；多孔板状电极5通过接地线10接地。The linear electrodes 6 are all connected to the output end of the high voltage power supply 13 through a high voltage input line 9 ; the porous plate electrodes 5 are grounded through a grounding line 10 .
所述主反应器中放电自由基协同海藻生物炭处理单元的数量至少为2个。In the main reactor, there are at least two discharging free radical cooperative seaweed biochar treatment units.
每个放电自由基协同海藻生物炭处理单元之间的间距为100～500mm。The distance between each discharging free radical cooperative seaweed biochar treatment unit is 100-500 mm.
所述两个线状电极6之间的间距为100～200mm，多孔板状电极5与线状电极之间6的间距为20～100mm。The distance between the two linear electrodes 6 is 100-200mm, and the distance 6 between the porous plate electrode 5 and the linear electrode is 20-100mm.
所述带有海藻生物炭夹层的毛毡滤料7的厚度为多孔板状电极5与线状电极6之间的距离的30％～100％。The thickness of the felt filter material 7 with seaweed biochar interlayer is 30%-100% of the distance between the porous plate electrode 5 and the wire electrode 6 .
所述高压电源13输出电压为5kV～50kV。The output voltage of the high voltage power supply 13 is 5kV˜50kV.
所述初级过滤装置4的过滤层采用可重复使用的滤网。The filter layer of the primary filter device 4 adopts a reusable filter screen.
主反应器的壳体1的材质为不锈钢板，结构为方形结构。The shell 1 of the main reactor is made of stainless steel plate and has a square structure.
所述主反应器与高压电源13之间设有电压、电流检测器和漏电保护装置。Voltage and current detectors and leakage protection devices are provided between the main reactor and the high voltage power supply 13 .
所述的放电自由基协同海藻生物炭脱除有机物和细颗粒物的装置的工作方法，步骤如下：The working method of the device for removing organic matter and fine particles in cooperation with seaweed biochar by discharging free radicals, the steps are as follows:
富含有机物的待净化的气体由引风机12作用进入装置的进气通道2，经导流板整流，经初级过滤装置4过滤掉大颗粒物之后，进入放电自由基协同海藻生物炭处理单元；气体首先穿过多孔板状电极5和带有海藻生物炭夹层的毛毡滤料7，颗粒物被带有海藻生物炭夹层的毛毡滤料7过滤在外面，有机物被滤料夹层里的的海藻生物炭吸附，具有氧化性能的自由基经多孔板状电极5与线状电极6放电产生；多孔板状电极5与线状电极6之间在一定电压下进行电晕放电高能电子、O3自由基、O自由基、OH自由基、N自由基等活性粒子，所述高能电子和自由基进入海藻生物炭表面的孔隙中，高能电子与有机物分子碰撞，使其化学键断裂，并被激化，被高能电子裂解激化的有机物分子在放电自由基的作用下被氧化成二氧化碳和水等无害物质；或者放电自由基直接与吸附在海藻生物炭表面的有机物反应，使其转化成无害的二氧化碳和水等；净化后的气体随气流进入下一级放电自由基协同海藻生物炭处理单元；气体经多级处理后，达到可排放的标准，进入尾部通道11，排出。The gas rich in organic matter to be purified enters the air intake channel 2 of the device through the induced draft fan 12, is rectified by the deflector, and after the primary filter device 4 filters out large particles, it enters the discharge free radical cooperative seaweed biochar treatment unit; the gas First pass through the porous plate electrode 5 and the felt filter material 7 with a seaweed biochar interlayer, the particulate matter is filtered out by the felt filter material 7 with a seaweed biochar interlayer, and the organic matter is adsorbed by the seaweed biochar in the filter material interlayer , free radicals with oxidative properties are generated by the discharge of the porous plate electrode 5 and the linear electrode 6; between the porous plate electrode 5 and the linear electrode 6, corona discharge high-energy electrons, O3 free radicals, O Active particles such as free radicals, OH free radicals, N free radicals, etc., the high-energy electrons and free radicals enter the pores on the surface of seaweed biochar, and the high-energy electrons collide with organic molecules to break their chemical bonds and become excited and cracked by high-energy electrons The excited organic molecules are oxidized into harmless substances such as carbon dioxide and water under the action of discharge radicals; or the discharge radicals directly react with organic substances adsorbed on the surface of seaweed biochar to convert them into harmless carbon dioxide and water; The purified gas enters the next-stage discharge free radical cooperative seaweed biochar processing unit along with the air flow; after multi-stage treatment, the gas reaches the dischargeable standard, enters the tail channel 11, and is discharged.
待净化的气体由引风机作用进入装置的进气通道2，经导流板整流，经初级过滤装置4过滤掉大颗粒物之后，进入放电自由基协同海藻生物炭处理单元。气体首先穿过多孔板状电极5和带有海藻生物炭夹层的毛毡滤料7，颗粒物被带有海藻生物炭夹层的毛毡滤料7过滤在外面，有机物被滤料夹层里的的海藻生物炭吸附，具有氧化性能的自由基经两个多孔极板放电产生。净化后的气体随气流进入下一级处理单元。气体经多级处理后，进入尾部通道11，排出。当高压电源13输出电压为15kV时，有机物脱除效率为89％，细颗粒物脱除效率95％。The gas to be purified enters the air intake channel 2 of the device through the induced draft fan, is rectified by the deflector, and after filtering out large particles by the primary filter device 4, enters the discharge free radical synergistic seaweed biochar treatment unit. The gas first passes through the porous plate electrode 5 and the felt filter material 7 with a seaweed biochar interlayer. Adsorption, free radicals with oxidation properties are generated by discharge through two porous plates. The purified gas enters the next-level processing unit along with the airflow. After multi-stage treatment, the gas enters the tail channel 11 and is discharged. When the output voltage of the high-voltage power supply 13 is 15kV, the removal efficiency of organic matter is 89%, and the removal efficiency of fine particles is 95%.
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Application publication date: 20171222 |