CN107670492A - High-efficiency type industrial waste gas purifying processing unit - Google Patents

High-efficiency type industrial waste gas purifying processing unit Download PDF

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Publication number
CN107670492A
CN107670492A CN201711000755.1A CN201711000755A CN107670492A CN 107670492 A CN107670492 A CN 107670492A CN 201711000755 A CN201711000755 A CN 201711000755A CN 107670492 A CN107670492 A CN 107670492A
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CN
China
Prior art keywords
chamber
waste gas
processing unit
pipe
box
Prior art date
Application number
CN201711000755.1A
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Chinese (zh)
Inventor
郜佩环
Original Assignee
郑州格瑞塔电子信息技术有限公司
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Priority to CN201711000755.1A priority Critical patent/CN107670492A/en
Publication of CN107670492A publication Critical patent/CN107670492A/en

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Classifications

    • 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
    • B01D50/00Combinations of devices for separating particles from gases or vapours
    • B01D50/006Combinations of devices relating to groups B01D46/00 and B01D47/00
    • 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
    • B01D53/007Separation 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 by irradiation
    • 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
    • B01D53/02Separation 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 by adsorption, e.g. preparative gas chromatography
    • 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
    • B01D53/32Separation 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 by electrical effects other than those provided for in group B01D61/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2253/00Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10Inorganic adsorbents
    • B01D2253/102Carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/91Bacteria; Microorganisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2259/00Type of treatment
    • B01D2259/80Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/804UV light
    • 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

Abstract

The invention provides a kind of high-efficiency type industrial waste gas purifying processing unit, belongs to waste gas purification technical field, including filter and sterilizing unit;The dedusting baffle plate is staggered in the inner chamber of dust cleaning case;The light decomposes fluorescent tube and is arranged on the upside of the inner chamber of purifying box;The right-hand member of the exhaust pump is connected by escape pipe with the upper end of triple valve, and graphite linings are provided with the inside of circulation pipe, is provided with three altogether;The lower end of the anion generator is connected by delivery pipe with exhaust manifolds;The ultraviolet sterilizer is arranged in the inner chamber of sterilization box;Apparatus of the present invention have the function of carrying out physical filtering absorption and biological cleaning to waste gas respectively by being provided with sponge filter layer, active carbon layer and biofiltration layer in purifying box;The inner chamber upper end of sterilization box is provided with anion generator, there is the function of being sterilized by the way of anion to gas;The present apparatus has the characteristics of simple in construction, practical and purified treatment effect is good.

Description

High-efficiency type industrial waste gas purifying processing unit
Technical field
The present invention relates to a kind of environmental purification facility, specifically a kind of high-efficiency type industrial waste gas purifying processing unit.
Background technology
As city is increasingly modernized, industrial pattern is more and more, and the living environment quality of people becomes increasingly Difference;Waste gas, refer to the mankind in the poisonous and hazardous gas for producing with being discharged in life process, particularly chemical plant, steel plant, system Pharmaceutical factory, and coking plant and oil plant etc., the exhaust gas smell of discharge is big, serious to pollute environment and influence health, big at present Gas pollution is increasingly severe, and industrial waste gas can not be directly discharged in air, if directly discharged in air, will result in ring The pollution in border, it is in the prior art, bad to the treatment effect of waste gas, it is impossible to thoroughly gas to be purified, it is impossible to reach ring The effect of guarantor;Because unreasonable some factors of grade of structure design, treatment effect is bad, does not reach emission request, after discharge still Polluted to environment.
The content of the invention
For above-mentioned the deficiencies in the prior art, it is recycled to the technical problem to be solved in the present invention is to provide a kind of High-efficiency type industrial waste gas purifying processing unit.
In order to solve the above technical problems, the invention provides following technical scheme:
A kind of high-efficiency type industrial waste gas purifying processing unit, including filter and sterilizing unit;The filter includes the One breather check valve, air intake pump, air inlet pipe, dust cleaning case, dedusting baffle plate, water spray plate, escape pipe, purifying box, light decompose fluorescent tube, sea Continuous filter layer, active carbon layer, biofiltration layer, exhaust pump, triple valve, purification of waste water device, drainpipe, agitating device, second enter Gas check valve, graphite linings, circulation pipe and threeway threshold switch;The air inlet pipe is arranged on the left bottom of dust cleaning case, air inlet pipe Upper left side of face is provided with the first breather check valve, and right side is provided with air intake pump above air inlet pipe;The dedusting baffle plate is staggeredly set Put in the inner chamber of dust cleaning case;The drainpipe is arranged on the left side lower end of dust cleaning case, and it is net to be provided with waste water above drainpipe Change device;The purifying box is arranged on the right side of dust cleaning case, and the left bottom of purifying box is connected by escape pipe with dust cleaning case;Institute State light and decompose the inner chamber upside that fluorescent tube is arranged on purifying box;The left end of the exhaust pump passes through on the right side of escape pipe and purifying box Side is connected, and the right-hand member of exhaust pump is connected by escape pipe with the upper end of triple valve, and second is provided with the left of circulation pipe and is entered Gas check valve, graphite linings are provided with the inside of circulation pipe, are provided with three altogether;The sterilizing unit includes sterilization box, exhaust is led Pipe, through hole, delivery pipe, anion generator, ultraviolet sterilizer and air outlet grate;The lower end of the anion generator passes through Delivery pipe is connected with exhaust manifolds, and exhaust manifolds are arranged on above the inner chamber of sterilization box, is provided with above exhaust manifolds Even through hole;The ultraviolet sterilizer is arranged in the inner chamber of sterilization box;The air outlet grate is arranged on the right side of sterilization box Top;Uniform shower nozzle is provided with above the water spray plate;The agitating device include motor, driving wheel, the first agitating shaft, Auger piece, driven pulley and the second agitating shaft;The right-hand member of the motor is provided with driving wheel, and the right-hand member of driving wheel is provided with One agitating shaft, auger piece is provided with above the first agitating shaft;The driven pulley is arranged on below driving wheel, driven pulley Right-hand member be provided with the second agitating shaft.
As the further improvement project of the present invention:The inner chamber upper end of the dust cleaning case is provided with water spray plate.
As the further improvement project of the present invention:Agitating device is provided with the downside of the inner chamber of the purifying box.
As the further improvement project of the present invention:Sponge filter layer is provided with the purifying box, sponge filter layer Active carbon layer is provided with above, and biofiltration layer is provided with above active carbon layer.
As the further improvement project of the present invention:Threeway threshold switch is provided with above the triple valve, triple valve Left end is connected by circulation pipe with the right side lower end of purifying box.
As further improvement of the present invention scheme:The inner chamber upper end of the sterilization box is provided with anion generator.
Compared with prior art, the beneficial effects of the invention are as follows:
Apparatus of the present invention are provided with water spray plate by the inner chamber upper end in dust cleaning case, have the work(that spray waste gas uniformly washes dedusting Energy;Agitating device is provided with the downside of the inner chamber of purifying box, waste gas is stirred and carries out the function that even gas is easy to follow-up dedusting; Sponge filter layer is provided with purifying box, active carbon layer is provided with above sponge filter layer, is provided with above active carbon layer Biofiltration layer, there is the function of carrying out physical filtering absorption and biological cleaning to waste gas respectively;Set above triple valve There is threeway threshold switch, the left end of triple valve is connected by circulation pipe with the right side lower end of purifying box, has control gas flow So as to realize the function of circulating filtration purification;The inner chamber upper end of sterilization box is provided with anion generator, have using bear from The function that the mode of son is sterilized to gas;The present apparatus has spy simple in construction, practical and that waste gas purification effect is good Point.
Brief description of the drawings
Fig. 1 is the structural representation of high-efficiency type industrial waste gas purifying processing unit;
Fig. 2 is the structural representation of water spray plate in high-efficiency type industrial waste gas purifying processing unit;
Fig. 3 is the structural representation of agitating device in high-efficiency type industrial waste gas purifying processing unit;
In figure:The breather check valves of 1- first, 2- air intake pumps, 3- air inlet pipe, 4- dust cleaning cases, 5- dedustings baffle plate, 6- water spray plates, 7- go out Tracheae, 8- purifying boxs, 9- light decompose fluorescent tube, 10- biofiltrations layer, 11- active carbon layers, 12- sponges filter layer, 13- exhaust pumps, 14- triple valves, 15- sterilization boxes, 16- exhaust manifolds, 17- through holes, 18- delivery pipes, 19- anion generators, 20- ultraviolets kill Bacterium device, 21- air outlet grates, 22- purifications of waste water device, 23- drainpipes, 24- agitating devices, the breather check valves of 25- second, 26- stones Layer of ink, 27- circulation pipes, 28- threeways threshold switch, 29- shower nozzles, 30- motors, 31- driving wheels, the agitating shafts of 32- first, 33- spirals Stirring sheet, 34- driven pulleys, the agitating shafts of 35- second.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
The embodiment of this patent is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, is only used for explaining this patent, and it is not intended that limitation to this patent.
In the description of this patent, it is to be understood that term " " center ", " on ", " under ", "front", "rear", " left side ", The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are based on shown in the drawings Orientation or position relationship, are for only for ease of description this patent and simplify and describe, rather than instruction or imply signified device or Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to this patent.
, it is necessary to illustrate in the description of this patent, unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection ", " setting " should be interpreted broadly, for example, it may be being fixedly linked, setting or being detachably connected, set Put, or be integrally connected, set.For the ordinary skill in the art, above-mentioned art can be understood as the case may be The concrete meaning of language in this patent.
Referring to Fig. 1, present embodiments provide a kind of high-efficiency type industrial waste gas purifying processing unit, including filter and Sterilizing unit;The filter includes the first breather check valve 1, air intake pump 2, air inlet pipe 3, dust cleaning case 4, dedusting baffle plate 5, spray Water plate 6, escape pipe 7, purifying box 8, light decompose fluorescent tube 9, sponge filter layer 10, active carbon layer 11, biofiltration layer 12, exhaust pump 13rd, triple valve 14, purification of waste water device 22, drainpipe 23, agitating device 24, the second breather check valve 25, graphite linings 26, circulation pipe 27 and threeway threshold switch 28;The air inlet pipe 3 is arranged on the left bottom of dust cleaning case 4, and left side is provided with the above air inlet pipe 3 One breather check valve 1, right side is provided with air intake pump 2 above air inlet pipe 3;The dedusting baffle plate 5 is staggered in dust cleaning case 4 In inner chamber, there is the function of dedusting and mitigation of gases flow velocity;The water spray plate 6 is arranged on the inner chamber upper end of dust cleaning case 4, has spray Drench the function of dedusting;The drainpipe 23 is arranged on the left side lower end of dust cleaning case 4, and purification of waste water is provided with above drainpipe 23 Device 22, have to purification of waste water to reach the function of discharge standard;The purifying box 8 is arranged on the right side of dust cleaning case 4, purifying box 8 left bottom is connected by escape pipe 7 with dust cleaning case 4, is provided with agitating device 24 on the downside of the inner chamber of purifying box 8, has The function of the even gas of stirring gas;The sponge filter layer 12 is arranged in purifying box 8, and work is provided with above sponge filter layer 12 Property layer of charcoal 11, be provided with biofiltration layer 10 above active carbon layer 11, have and waste gas is carried out filtering absorption and biology respectively The function of purification;The light decomposes fluorescent tube 9 and is arranged on the upside of the inner chamber of purifying box 8, has the work(that toxic gas is decomposed in light reaction Energy;The left end of the exhaust pump 13 is connected by escape pipe 7 with the right side top of purifying box 8, and the right-hand member of exhaust pump 13 passes through Escape pipe 7 is connected with the upper end of triple valve 14, and threeway threshold switch 28 is provided with above triple valve 14, has control gas stream To so as to realizing the function of circulating filtration purification, the right side lower end phase that the left end of triple valve 14 passes through circulation pipe 27 and purifying box 8 Connection, the left side of circulation pipe 27 are provided with the second breather check valve 25, and gas can only flow to left end from the right-hand member of circulation pipe 27, follow The inner side of endless tube 27 is provided with graphite linings 26, is provided with three altogether, has the function to the further absorption of waste gas;The sterilization dress Put including sterilization box 15, exhaust manifolds 16, through hole 17, delivery pipe 18, anion generator 19, ultraviolet sterilizer 20 and outlet Grid 21;The inner chamber upper end of the sterilization box 15 is provided with anion generator 19, and the lower end of anion generator 19 passes through defeated Pipe 18 is sent to be connected with exhaust manifolds 16, exhaust manifolds 16 are arranged on above the inner chamber of sterilization box 15, above exhaust manifolds 16 Uniform through hole 17 is provided with, there is the function of being sterilized by the way of anion to gas;The ultraviolet sterilizer 20 are arranged in the inner chamber of sterilization box 15, have the function of being sterilized by the way of ultraviolet to gas;The outlet lattice Grid 21 are arranged on above the right side of sterilization box 15.
Referring to Fig. 2, in the present invention, uniform shower nozzle 29 is provided with above the water spray plate 6, has spray waste gas equal The function of even washing dedusting.
Referring to Fig. 3, in the present invention, the agitating device 24 includes motor 30, driving wheel 31, the first agitating shaft 32, spiral shell Revolve stirring sheet 33, the agitating shaft 35 of driven pulley 34 and second;The right-hand member of the motor 30 is provided with driving wheel 31, the right side of driving wheel 31 End is provided with the first agitating shaft 32, and auger piece 33 is provided with above the first agitating shaft 32, and it is even to be stirred waste gas progress Gas is easy to the function of follow-up dedusting;The driven pulley 34 is arranged on below driving wheel 31, and the right-hand member of driven pulley 34 is provided with Two agitating shafts 35.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge Make a variety of changes.

Claims (6)

1. a kind of high-efficiency type industrial waste gas purifying processing unit, including filter and sterilizing unit;It is characterized in that the filtering Device includes the first breather check valve, air intake pump, air inlet pipe, dust cleaning case, dedusting baffle plate, water spray plate, escape pipe, purifying box, light Decompose fluorescent tube, sponge filter layer, active carbon layer, biofiltration layer, exhaust pump, triple valve, purification of waste water device, drainpipe, stirring Device, the second breather check valve, graphite linings, circulation pipe and threeway threshold switch;The air inlet pipe is arranged on the left side bottom of dust cleaning case Portion, left side is provided with the first breather check valve above air inlet pipe, and right side is provided with air intake pump above air inlet pipe;The dedusting Baffle plate is staggered in the inner chamber of dust cleaning case;The drainpipe is arranged on the left side lower end of dust cleaning case, is set above drainpipe It is equipped with purification of waste water device;The purifying box is arranged on the right side of dust cleaning case, and the left bottom of purifying box passes through escape pipe and dedusting Case is connected;The light decomposes fluorescent tube and is arranged on the upside of the inner chamber of purifying box;The left end of the exhaust pump is by escape pipe and only Change and be connected above the right side of case, the right-hand member of exhaust pump is connected by escape pipe with the upper end of triple valve, the left side of circulation pipe The second breather check valve is provided with, graphite linings are provided with the inside of circulation pipe, is provided with three altogether;The sterilizing unit includes killing Bacterium case, exhaust manifolds, through hole, delivery pipe, anion generator, ultraviolet sterilizer and air outlet grate;The anion occurs The lower end of device is connected by delivery pipe with exhaust manifolds, and exhaust manifolds are arranged on above the inner chamber of sterilization box, exhaust manifolds Uniform through hole is provided with above;The ultraviolet sterilizer is arranged in the inner chamber of sterilization box;The air outlet grate is arranged on Above the right side of sterilization box;Uniform shower nozzle is provided with above the water spray plate;The agitating device includes motor, active Wheel, the first agitating shaft, auger piece, driven pulley and the second agitating shaft;The right-hand member of the motor is provided with driving wheel, driving wheel Right-hand member be provided with the first agitating shaft, auger piece is provided with above the first agitating shaft;The driven pulley is arranged on actively Below wheel, the right-hand member of driven pulley is provided with the second agitating shaft.
2. high-efficiency type industrial waste gas purifying processing unit according to claim 1, it is characterized in that, the inner chamber of the dust cleaning case Upper end is provided with water spray plate.
3. high-efficiency type industrial waste gas purifying processing unit according to claim 1, it is characterized in that, the inner chamber of the purifying box Downside is provided with agitating device.
4. high-efficiency type industrial waste gas purifying processing unit according to claim 1, it is characterized in that, set in the purifying box There is sponge filter layer, active carbon layer is provided with above sponge filter layer, biofiltration layer is provided with above active carbon layer.
5. high-efficiency type industrial waste gas purifying processing unit according to claim 1, it is characterized in that, above the triple valve Threeway threshold switch is provided with, the left end of triple valve is connected by circulation pipe with the right side lower end of purifying box.
6. high-efficiency type industrial waste gas purifying processing unit according to claim 1, it is characterized in that, the inner chamber of the sterilization box Upper end is provided with anion generator.
CN201711000755.1A 2017-10-24 2017-10-24 High-efficiency type industrial waste gas purifying processing unit CN107670492A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711000755.1A CN107670492A (en) 2017-10-24 2017-10-24 High-efficiency type industrial waste gas purifying processing unit

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Application Number Priority Date Filing Date Title
CN201711000755.1A CN107670492A (en) 2017-10-24 2017-10-24 High-efficiency type industrial waste gas purifying processing unit

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108404573A (en) * 2018-03-13 2018-08-17 兰斌 A kind of equipment for treating industrial waste gas
CN108758852A (en) * 2018-06-12 2018-11-06 合肥职业技术学院 A kind of environmental protection air air purifying apparatus
CN108837676A (en) * 2018-06-29 2018-11-20 郑州郑先医药科技有限公司 A kind of chemical products research and development sour gas reclaiming clean processing unit
CN109012139A (en) * 2018-07-05 2018-12-18 曾小敏 Using the device of biological cleaning exhaust gas
CN109012135A (en) * 2018-07-05 2018-12-18 曾小敏 Biological purification device for chemical waste gas

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CN203177328U (en) * 2012-11-01 2013-09-04 党庆风 Air cleaning generator with UV disinfection and oxygenation
CN204684884U (en) * 2015-04-09 2015-10-07 成都赋阳技术开发有限公司 A kind of industrial waste gas purifying self-stripping unit of stable performance
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CN206215039U (en) * 2016-09-21 2017-06-06 东莞市金森工业机械有限公司 A kind of plasma light catalytic control equipment
CN206252995U (en) * 2016-11-18 2017-06-16 永康市信政恒涂装设备有限公司 A kind of photooxidation catalytic waste gas processing unit

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CN203177328U (en) * 2012-11-01 2013-09-04 党庆风 Air cleaning generator with UV disinfection and oxygenation
CN204684884U (en) * 2015-04-09 2015-10-07 成都赋阳技术开发有限公司 A kind of industrial waste gas purifying self-stripping unit of stable performance
CN205783364U (en) * 2016-05-18 2016-12-07 深圳市美兆能源环境科技有限公司 A kind of ventilating system air pollutant purification apparatus
CN206215039U (en) * 2016-09-21 2017-06-06 东莞市金森工业机械有限公司 A kind of plasma light catalytic control equipment
CN206252995U (en) * 2016-11-18 2017-06-16 永康市信政恒涂装设备有限公司 A kind of photooxidation catalytic waste gas processing unit

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108404573A (en) * 2018-03-13 2018-08-17 兰斌 A kind of equipment for treating industrial waste gas
CN108758852A (en) * 2018-06-12 2018-11-06 合肥职业技术学院 A kind of environmental protection air air purifying apparatus
CN108758852B (en) * 2018-06-12 2020-06-02 江门市印星机器人有限公司 Environment-friendly air purification device
CN108837676A (en) * 2018-06-29 2018-11-20 郑州郑先医药科技有限公司 A kind of chemical products research and development sour gas reclaiming clean processing unit
CN109012139A (en) * 2018-07-05 2018-12-18 曾小敏 Using the device of biological cleaning exhaust gas
CN109012135A (en) * 2018-07-05 2018-12-18 曾小敏 Biological purification device for chemical waste gas

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