CN106621798A - Waste gas purifying device with ozone catalyst layer - Google Patents

Waste gas purifying device with ozone catalyst layer Download PDF

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Publication number
CN106621798A
CN106621798A CN201611183004.3A CN201611183004A CN106621798A CN 106621798 A CN106621798 A CN 106621798A CN 201611183004 A CN201611183004 A CN 201611183004A CN 106621798 A CN106621798 A CN 106621798A
Authority
CN
China
Prior art keywords
filter layer
layer
drawer
drawer interlayer
interlayer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611183004.3A
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Chinese (zh)
Inventor
周至山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Wanshanhong Environmental Protection Technology Co Ltd
Original Assignee
Anhui Wanshanhong Environmental Protection Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Wanshanhong Environmental Protection Technology Co Ltd filed Critical Anhui Wanshanhong Environmental Protection Technology Co Ltd
Priority to CN201611183004.3A priority Critical patent/CN106621798A/en
Publication of CN106621798A publication Critical patent/CN106621798A/en
Pending legal-status Critical Current

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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
    • B01D53/86Catalytic processes
    • B01D53/8671Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
    • B01D53/8675Ozone
    • 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
    • B01D53/66Ozone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/80Type of catalytic reaction
    • B01D2255/802Photocatalytic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/90Physical characteristics of catalysts
    • B01D2255/902Multilayered catalyst
    • B01D2255/9027More than three layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/90Physical characteristics of catalysts
    • B01D2255/92Dimensions
    • B01D2255/9202Linear dimensions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/10Single element gases other than halogens
    • B01D2257/106Ozone
    • 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 waste gas purifying device with an ozone catalyst layer. The waste gas purifying device comprises a box body, filter layers, an air inlet and an air outlet, wherein the air inlet is arranged in the right side of the box body; and the air outlet is arranged in the left side of the box body. The waste gas purifying device has the beneficial effects that (1) the purifying device is not affected by weather, not limited by the aeration intensity and has multiple filter layers, so that the waste gas purification is more thorough; (2) ozone catalyst particles used in the purifying device are in a honeycomb ball form, after a waste gas enters, ozone in the waste gas can be well decomposed and filtered; and (3) the ozone is removed by the purifying device by adopting the ozone catalyst particles, and compared with an existing ozone removal technology by using electricity or a pipe, the waste gas purifying device, provided by the invention, has the advantage that the space and the energy are saved.

Description

A kind of waste gas purification apparatus with ozone catalytic layer
Technical field
The invention belongs to field of environment protection, and in particular to a kind of waste gas purification apparatus with ozone catalytic layer.
Background technology
Waste gas purification (Flue gas purification) be primarily referred to as industrial site produce industrial waste gas such as The work that dust granules thing, flue gas flue dust, gas with foreign flavor, toxic and harmful are administered.Common exhaust gas purifying method has Dilution diffusion method, water absorption method, aeration type activated sludge deodorization method and multimedium catalytic oxidation technique, in existing these methods There is low purification efficiency when easily being limited by meteorological condition, be used alone, restriction by aeration intensity and purification successively incomplete Shortcoming, while it is existing remove ozone technology in be substantially automatic classifying in electricity consumption, photo-thermal or pipeline, electricity consumption and photo-thermal The wasting of resources is easily caused, pipeline automatic classifying haves the shortcomings that occupation of land space is big.
The content of the invention
The invention aims to overcome deficiency of the prior art, there is provided a kind of waste gas purification with ozone catalytic layer Device, the device is not limited by meteorological effect and aeration intensity, combines spray process, there is single ozone catalytic layer, can be with The ozone produced during catalytic decomposition waste gas purification, and it is more to filter the number of plies so that more fully and completely, ozone catalytic layer makes for purification It is ozone catalyst particle, does not result in the wasting of resources of electricity, photo-thermal, takes up an area space also little.
To solve above-mentioned technical problem, the technical scheme is that:
A kind of waste gas purification apparatus with ozone catalytic layer, including casing, filter layer, air inlet, gas outlet, the air inlet sets In casing right side, the gas outlet is located at casing left side;
In the casing from the air inlet side to the gas outlet side be sequentially provided with the first drawer interlayer, the second drawer every Layer, the 3rd drawer interlayer, the 4th drawer interlayer, the 5th drawer interlayer, the 6th drawer interlayer, the 7th drawer interlayer, the 8th drawer Interlayer;Between the 3rd drawer interlayer and the 4th drawer interlayer and the 5th drawer interlayer and the 6th drawer every Ballast is equipped between layer;
The filter layer include the first filter layer, the second filter layer, the 3rd filter layer, the 4th filter layer, the 5th filter layer, the 6th Filter layer, the 7th filter layer, the 8th filter layer, first filter layer, the second filter layer, the 3rd filter layer, the 4th filter layer, 5th filter layer, the 6th filter layer, the 7th filter layer, the 8th filter layer respectively with the first drawer interlayer, the second drawer every Layer, the 3rd drawer interlayer, the 4th drawer interlayer, the 5th drawer interlayer, the 6th drawer interlayer, the 7th drawer interlayer, the 8th drawer Interlayer correspondence;The first filter layer upper end is provided with inlet opening, and the first filter layer lower end is provided with apopore;Second mistake Filtering layer is built-in with primarily efficient filter wool;3rd filter layer, the 4th filter layer, the 5th filter layer, the 6th filter layer are ultraviolet Light lamp layers, at the 3rd filter layer, the 4th filter layer, the 5th filter layer, the 6th every layer of header board of filter layer under upper successively Six fluorescent tube installing holes are uniformly provided with, the ultraviolet lamp of respective model is separately installed with the fluorescent tube installing hole, it is described ultraviolet Light lamp is the six roots of sensation, and per ultraviolet lamp both sides described in root photocatalyst reflector is provided with;7th filter layer is built-in with multilayer activity Charcoal filter cotton;8th filter layer is built-in with ozone catalyst particle.
Preferred version, the first drawer interlayer, the second drawer interlayer, the 3rd drawer interlayer, the 4th drawer interlayer, the 5th Drawer interlayer, the 6th drawer interlayer, the 7th drawer interlayer, the 8th drawer interlayer are divided into upper and lower two-layer.
Preferred version, first filter layer, the second filter layer, the 3rd filter layer, the 4th filter layer, the 5th filter layer, 6th filter layer, the 7th filter layer, the 8th filter layer are divided into upper and lower two-layer.
Preferred version, the ozone catalyst particle is that honeycomb is spherical.
Preferred version, first filter layer, the second filter layer, the 3rd filter layer, the 4th filter layer, the 5th filter layer, 6th filter layer, the 7th filter layer, the 8th filter layer both sides are equipped with screen pack.
Preferred version, the filter layer header board center is equipped with handle.
Beneficial effects of the present invention are:(1)The purifier is not limited and filter layer by meteorological effect and aeration intensity Number is more so that waste gas purification is more thorough;(2)Ozone catalyst particle used in the purifier is that honeycomb is spherical, and waste gas enters After entering, the ozone in waste gas can be obtained preferably decomposing and filtered;(3)The purifier is removed using ozone catalyst particle Ozone, compares existing electricity consumption or pipeline removes ozone technology, saves space and the energy.
Description of the drawings
Accompanying drawing 1 is schematic structural view of the invention;
Accompanying drawing 2 is the first filtering layer structure schematic diagram;
Accompanying drawing 3 is the second filtering layer structure schematic diagram;
Accompanying drawing 4 is ultraviolet lamp Rotating fields schematic diagram;
Accompanying drawing 5 is the 7th filtering layer structure schematic diagram;
Accompanying drawing 6 is the 8th filtering layer structure schematic diagram;
Accompanying drawing 7 is gas outlet structural representation;
Accompanying drawing 8 is ozone catalyst grain structure schematic diagram.
In accompanying drawing:1st, casing;11st, the first drawer interlayer;12nd, the second drawer interlayer;13rd, the 3rd drawer interlayer;14th, the 4th Drawer interlayer;15th, the 5th drawer interlayer;16th, the 6th drawer interlayer;17th, the 7th drawer interlayer;18th, the 8th drawer interlayer;2nd, mistake Filtering layer;21st, the first filter layer;211st, inlet opening;212nd, apopore;22nd, the second filter layer;221st, primarily efficient filter wool;23rd, the 3rd Filter layer;231st, fluorescent tube installing hole;232nd, ultraviolet lamp;233rd, photocatalyst reflector;24th, the 4th filter layer;25th, the 5th filter Layer;26th, the 6th filter layer;27th, the 7th filter layer;271st, activated carbon filter cotton;28th, the 8th filter layer;281st, ozone catalyst Particle;3rd, air inlet;4th, shake hands;5th, gas outlet;6th, ballast;7th, screen pack.
Specific embodiment
Effect to make the architectural feature to the present invention and reached has a better understanding and awareness, to preferably Embodiment and accompanying drawing coordinate detailed description, are described as follows:
A kind of waste gas purification apparatus with ozone catalytic layer, including casing 1, filter layer 2, air inlet 3, gas outlet 5, the air inlet , located at the right side of the casing 1, the gas outlet 5 is located at the left side of the casing 1 for mouth 3;
The first drawer interlayer 11, second is sequentially provided with the casing 1 from the side of the air inlet 3 to the side of the gas outlet 5 Drawer interlayer 12, the 3rd drawer interlayer 13, the 4th drawer interlayer 14, the 5th drawer interlayer 15, the 6th drawer interlayer the 16, the 7th are taken out Drawer interlayer 17, the 8th drawer interlayer 18;Between the 3rd drawer interlayer 13 and the 4th drawer interlayer 14 and the described 5th Ballast 6 is equipped between drawer interlayer 15 and the 6th drawer interlayer 16;The ballast 6 controls following ultraviolet lamps Irradiation;
The filter layer 2 includes the first filter layer 21, the second filter layer 22, the 3rd filter layer 23, the 4th filter layer 24, the 5th mistake Filtering layer 25, the 6th filter layer 26, the 7th filter layer 27, the 8th filter layer 28, first filter layer 21, the second filter layer 22, 3rd filter layer 23, the 4th filter layer 24, the 5th filter layer 25, the 6th filter layer 26, the 7th filter layer 27, the 8th filter layer 28 Take out with the first drawer interlayer 11, the second drawer interlayer 12, the 3rd drawer interlayer 13, the 4th drawer interlayer the 14, the 5th respectively Drawer interlayer 15, the 6th drawer interlayer 16, the 7th drawer interlayer 17, the correspondence of the 8th drawer interlayer 18;On first filter layer 21 End is provided with inlet opening 211, and the lower end of the first filter layer 21 is provided with apopore 212;Second filter layer 22 is built-in with just effect Filter cotton 221;3rd filter layer 23, the 4th filter layer 24, the 5th filter layer 25, the 6th filter layer 26 are ultraviolet lamp Layer, because ultraviolet light lamp layers are all identical, specifically introduces the 3rd filter layer 23 herein, and other are repeated no more.3rd mistake Six are uniformly provided with successively under upper at filtering layer 23, the 4th filter layer 24, the 5th filter layer 25, the every layer of header board of the 6th filter layer 26 The ultraviolet lamp 232 of respective model, the ultraviolet light are separately installed with individual fluorescent tube installing hole 231, the fluorescent tube installing hole 231 Lamp 232 is the six roots of sensation, and per the both sides of ultraviolet lamp described in root 232 photocatalyst reflector 233 is provided with;7th filter layer 27 is built-in with Multilayer activated carbon filter cotton 271;8th filter layer 28 is built-in with ozone catalyst particle 281.
The first drawer interlayer 11, the second drawer interlayer 12, the 3rd drawer interlayer 13, the 4th drawer interlayer the 14, the 5th Drawer interlayer 15, the 6th drawer interlayer 16, the 7th drawer interlayer 17, the 8th drawer interlayer 18 are divided into upper and lower two-layer.
First filter layer 21, the second filter layer 22, the 3rd filter layer 23, the 4th filter layer 24, the 5th filter layer 25, 6th filter layer 26, the 7th filter layer 27, the 8th filter layer 28 are divided into upper and lower two-layer.
The ozone catalyst particle 281 is that honeycomb is spherical, advantageously in the absorption and decomposition of ozone.
First filter layer 21, the second filter layer 22, the 3rd filter layer 23, the 4th filter layer 24, the 5th filter layer 25, 6th filter layer 26, the 7th filter layer 27, the both sides of the 8th filter layer 28 are equipped with screen pack 7.
The header board center of the filter layer 2 is equipped with handle 4, and the design of drawer type is advantageously in filter layer internal material Replacement and cleaning.
First, waste gas is entered from the air inlet 3, after the Water spray of the first filter layer 21, big portion in waste gas Divide dust and impurity to be eliminated a part, second filter layer 22 is gone successively to, through the mistake of the primarily efficient filter wool 221 Filter, part little particle dust is further filtered, and the waste gas for subsequently tentatively being filtered enters the 3rd filter layer 23(Due to institute State the 3rd filter layer 23, the 4th filter layer 24, the 5th filter layer 25, the 6th filter layer 26 and be ultraviolet lamp irradiation layer, herein The work principle of filter of the filter layer 23 of specific explanations the 3rd), the ballast 6 controls the ultraviolet lamp 232 and irradiates, and the light is touched Photocatalyst on matchmaker's reflector 233 can be by water in air or oxygen catalytic into hydroxyl, and hydroxyl can have in formaldehyde in waste gas etc. Machine thing decomposes, and some ozone can be produced in the process, and ozone can together enter described with the waste gas purified by ultraviolet lamp 7th filter layer 27, the activated carbon filter cotton 271 can further adsorb the organic matters such as unnecessary dust, formaldehyde, last waste gas Into the 8th filter layer 28, because the ozone catalyst particle 281 is honeycomb particulate, advantageously in the suction of ozone Catalytic decomposition is echoed, the waste gas after being finally cleaned is discharged from the gas outlet 5, complete primary purification process.The device is filtered The number of plies is more, and combines various different purification methods so that waste gas purification more fully and completely, and the device has single ozone Purifying layer so that purified gas is cleaner.
Beneficial effects of the present invention are:(1)The purifier is not limited and filter layer by meteorological effect and aeration intensity Number is more so that waste gas purification is more thorough;(2)Ozone catalyst particle used in the purifier is that honeycomb is spherical, and waste gas enters After entering, the ozone in waste gas can be obtained preferably decomposing and filtered;(3)The purifier is removed using ozone catalyst particle Ozone, compares existing electricity consumption or pipeline removes ozone technology, saves space and the energy.
It should be understood by those skilled in the art that, the present invention is not restricted to the described embodiments, above-described embodiment and explanation The principle of the simply present invention described in book, it is of the invention without departing from the spirit and scope of the present invention also to have various changes Change and improve, these changes and improvements are both fallen within the range of claimed invention.The protection domain of application claims by Appending claims and its equivalent are defined.

Claims (6)

1. a kind of waste gas purification apparatus with ozone catalytic layer, it is characterised in that:Including casing, filter layer, air inlet, outlet Mouthful, located at casing right side, the gas outlet is located at casing left side for the air inlet;
In the casing from the air inlet side to the gas outlet side be sequentially provided with the first drawer interlayer, the second drawer every Layer, the 3rd drawer interlayer, the 4th drawer interlayer, the 5th drawer interlayer, the 6th drawer interlayer, the 7th drawer interlayer, the 8th drawer Interlayer;Between the 3rd drawer interlayer and the 4th drawer interlayer and the 5th drawer interlayer and the 6th drawer every Ballast is equipped between layer;
The filter layer include the first filter layer, the second filter layer, the 3rd filter layer, the 4th filter layer, the 5th filter layer, the 6th Filter layer, the 7th filter layer, the 8th filter layer, first filter layer, the second filter layer, the 3rd filter layer, the 4th filter layer, 5th filter layer, the 6th filter layer, the 7th filter layer, the 8th filter layer respectively with the first drawer interlayer, the second drawer every Layer, the 3rd drawer interlayer, the 4th drawer interlayer, the 5th drawer interlayer, the 6th drawer interlayer, the 7th drawer interlayer, the 8th drawer Interlayer correspondence;The first filter layer upper end is provided with inlet opening, and the first filter layer lower end is provided with apopore;Second mistake Filtering layer is built-in with primarily efficient filter wool;3rd filter layer, the 4th filter layer, the 5th filter layer, the 6th filter layer are ultraviolet Light lamp layers, at the 3rd filter layer, the 4th filter layer, the 5th filter layer, the 6th every layer of header board of filter layer under upper successively Six fluorescent tube installing holes are uniformly provided with, the ultraviolet lamp of respective model is separately installed with the fluorescent tube installing hole, it is described ultraviolet Light lamp is the six roots of sensation, and per ultraviolet lamp both sides described in root photocatalyst reflector is provided with;7th filter layer is built-in with multilayer activity Charcoal filter cotton;8th filter layer is built-in with ozone catalyst particle.
2. a kind of waste gas purification apparatus with ozone catalytic layer according to claim 1, it is characterised in that:Described first takes out Drawer interlayer, the second drawer interlayer, the 3rd drawer interlayer, the 4th drawer interlayer, the 5th drawer interlayer, the 6th drawer interlayer, the 7th Drawer interlayer, the 8th drawer interlayer are divided into upper and lower two-layer.
3. a kind of waste gas purification apparatus with ozone catalytic layer according to claim 1, it is characterised in that:First mistake Filtering layer, the second filter layer, the 3rd filter layer, the 4th filter layer, the 5th filter layer, the 6th filter layer, the 7th filter layer, the 8th mistake Filtering layer is divided into upper and lower two-layer.
4. a kind of waste gas purification apparatus with ozone catalytic layer according to claim 1, it is characterised in that:The ozone is urged Catalyst particles are that honeycomb is spherical.
5. a kind of waste gas purification apparatus with ozone catalytic layer according to claim 1, it is characterised in that:First mistake Filtering layer, the second filter layer, the 3rd filter layer, the 4th filter layer, the 5th filter layer, the 6th filter layer, the 7th filter layer, the 8th mistake Filtering layer both sides are equipped with screen pack.
6. a kind of waste gas purification apparatus with ozone catalytic layer according to claim 1, it is characterised in that:The filter layer Header board center is equipped with handle.
CN201611183004.3A 2016-12-20 2016-12-20 Waste gas purifying device with ozone catalyst layer Pending CN106621798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611183004.3A CN106621798A (en) 2016-12-20 2016-12-20 Waste gas purifying device with ozone catalyst layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611183004.3A CN106621798A (en) 2016-12-20 2016-12-20 Waste gas purifying device with ozone catalyst layer

Publications (1)

Publication Number Publication Date
CN106621798A true CN106621798A (en) 2017-05-10

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1594999A (en) * 2004-06-17 2005-03-16 上海交通大学 Combined type air purification and sterilization device
CN204051388U (en) * 2014-08-29 2014-12-31 鹤山四海电路板有限公司 A kind of exhaust gas centralized-control treatment system of water curtain active carbon filtration
CN204447570U (en) * 2015-02-17 2015-07-08 宁国市志诚机械制造有限公司 A kind of photochemical catalytic oxidation waste gas treatment equipment
CN204582928U (en) * 2015-01-27 2015-08-26 江苏现代环保科技有限公司 Waste water, refuse depot foul gas cleaning equipment
CN205448055U (en) * 2016-03-14 2016-08-10 西安交通大学 Photocatalytic air purification ware that contains drainage formula water bath unit
CN105854590A (en) * 2016-04-12 2016-08-17 东莞市技塑塑胶科技有限公司 Floor type air purifier
CN205650079U (en) * 2016-04-11 2016-10-19 四川浩景环保科技有限公司 Advanced oxidation modularization equipment is united in peculiar smell waste gas ozone - photocatalysis
CN205747221U (en) * 2016-07-08 2016-11-30 浙江兴昌风机有限公司 Composite air purifying and dedusting device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1594999A (en) * 2004-06-17 2005-03-16 上海交通大学 Combined type air purification and sterilization device
CN204051388U (en) * 2014-08-29 2014-12-31 鹤山四海电路板有限公司 A kind of exhaust gas centralized-control treatment system of water curtain active carbon filtration
CN204582928U (en) * 2015-01-27 2015-08-26 江苏现代环保科技有限公司 Waste water, refuse depot foul gas cleaning equipment
CN204447570U (en) * 2015-02-17 2015-07-08 宁国市志诚机械制造有限公司 A kind of photochemical catalytic oxidation waste gas treatment equipment
CN205448055U (en) * 2016-03-14 2016-08-10 西安交通大学 Photocatalytic air purification ware that contains drainage formula water bath unit
CN205650079U (en) * 2016-04-11 2016-10-19 四川浩景环保科技有限公司 Advanced oxidation modularization equipment is united in peculiar smell waste gas ozone - photocatalysis
CN105854590A (en) * 2016-04-12 2016-08-17 东莞市技塑塑胶科技有限公司 Floor type air purifier
CN205747221U (en) * 2016-07-08 2016-11-30 浙江兴昌风机有限公司 Composite air purifying and dedusting device

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