CN112844014A - VOCs exhaust gas filter - Google Patents
VOCs exhaust gas filter Download PDFInfo
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- CN112844014A CN112844014A CN202011419372.XA CN202011419372A CN112844014A CN 112844014 A CN112844014 A CN 112844014A CN 202011419372 A CN202011419372 A CN 202011419372A CN 112844014 A CN112844014 A CN 112844014A
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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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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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
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/106—Peroxides
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a VOCs waste gas filter. VOCs exhaust gas filter includes the box, oxidation mechanism, first mounting panel, second mounting panel and defeated logical mechanism, baffle through fixed mounting in the box divide into feed liquor chamber and process chamber, and feed liquor chamber and process chamber distribute from top to bottom, and oxidation mechanism installs in the box, and oxidation mechanism includes splint, the cavernosum, the through-hole, arc and flowing liquid hole, two splint fixed mounting that the specification is the same are in the process chamber, and the both ends of splint respectively with two upper and lower chamber wall fixed connection in process chamber, set up a plurality of evenly distributed's through-hole on two splint, and fixed gomphosis has the cavernosum between two splint, two arc fixed mounting are in the feed liquor intracavity, and the flowing liquid hole that communicates each other with the cavernosum top is seted up to the bottom in feed liquor chamber, and the bottom of box is installed album liquid mechanism. The VOCs waste gas filter provided by the invention has the advantages of improving the filtering effect and the cleanliness of the filtering efficiency.
Description
Technical Field
The invention relates to the technical field of waste treatment, in particular to a VOCs waste gas filter.
Background
VOCs (volatile organic compounds) are organic compounds with saturated vapor pressure of more than 70Pa at normal temperature and boiling point of 260 ℃ below under normal pressure, or all organic compounds with corresponding volatility with vapor pressure of more than or equal to 10Pa at 20 ℃, mainly come from petrochemical industry, automobile engine tail gas, pharmacy, printing and other industries, and comprise main components such as hydrocarbons, phenols, aromatics and the like. VOCs can form optical smoke in the atmosphere, causing great harm to the environment and human bodies, and after entering the human bodies through respiratory tracts and skins, the VOCs cause temporary or permanent damage to systems and organs such as human breath, blood, liver and the like, and especially polycyclic aromatic hydrocarbons such as benzenes and aromatics have carcinogenic effect on the human bodies. The disposal of VOCs is therefore becoming more and more appreciated by countries throughout the world.
The filter filtration structure that has now adopts simple flat structure's filter frame, and the single structure, gaseous from the air inlet get into the back concentrate from filter frame's middle part through, and filtering material low-usage, the change time is frequent, and equipment inner space utilization is low.
Therefore, it is necessary to provide a VOCs exhaust filter to solve the above problems.
Disclosure of Invention
The invention aims to provide a VOCs waste gas filter capable of improving the filtering effect and the filtering efficiency cleanliness.
In order to solve the above technical problem, the present invention provides a VOCs exhaust filter comprising: the box body is divided into a liquid inlet cavity and a treatment cavity by a fixedly installed partition plate, and the liquid inlet cavity and the treatment cavity are distributed up and down; the oxidation mechanism is arranged in the box body and comprises clamping plates, a sponge body, through holes, arc-shaped plates and liquid flowing holes, the two clamping plates with the same specification are fixedly arranged in the treatment cavity, two ends of each clamping plate are fixedly connected with the upper cavity wall and the lower cavity wall of the treatment cavity respectively, a plurality of uniformly distributed through holes are formed in the two clamping plates, the sponge body is fixedly embedded between the two clamping plates, the two arc-shaped plates are fixedly arranged in the liquid inlet cavity, and the bottom of the liquid inlet cavity is provided with the liquid flowing holes mutually communicated with the top of the sponge body; the first mounting plate is fixedly mounted on the inner top wall of the processing cavity and is close to the front end face of the box body, and an adsorption mechanism is mounted on the front end face of the first mounting plate; the second mounting plate is fixedly mounted on the inner top wall of the processing cavity and is close to the rear end face of the box body, and the rear end face of the second mounting plate is provided with a filtering mechanism; the conveying mechanism is arranged on the box body.
Preferably, adsorption apparatus constructs including circular casing, puddler, air inlet hose and exhaust net, circular casing fixed mounting is at the preceding terminal surface of first mounting panel, and the centre of a circle department fixed mounting of circular casing outer wall has driving motor, driving motor's output extends to in the circular casing and fixed mounting has a plurality of puddler, the top fixed mounting of circular casing has two air inlet hoses that admit air, and the bottom of circular casing installs and is used for carminative exhaust net.
Preferably, a proper amount of activated carbon particles are stored in the circular shell, and the diameter of the activated carbon particles is larger than the meshes of the exhaust net.
Preferably, the filtering mechanism comprises an installation frame, an activated carbon screen plate and through holes, the installation frame is fixedly installed on the rear end face of the second installation plate, the other side wall of the installation frame is fixedly connected with the inner wall of the rear side of the treatment cavity, a plurality of groups of activated carbon screen plates are fixedly installed in the installation frame, and a plurality of through holes are formed in the bottom of the installation frame.
Preferably, the first mounting plate and the second mounting plate are spaced 8-12cm from the inner bottom wall of the treatment chamber.
Preferably, the dredging mechanism comprises air inlet guide pipes, exhaust guide pipes and a liquid inlet pipe, the two air inlet guide pipes are fixedly connected with the air inlet formed in the front end face of the box body, the inner wall of the air inlet is fixedly connected with one end of an air inlet hose, the exhaust guide pipes are fixedly arranged on the rear end face of the box body and are located above the mounting frame, and the liquid inlet pipe is fixedly arranged at the top of the box body.
Preferably, the bottom of the box body is provided with the liquid collecting mechanism, the liquid collecting mechanism comprises a waste liquid box and a liquid discharge pipe, and two side walls of the waste liquid box are fixedly connected with the liquid discharge cavity formed in two side walls of the treatment cavity through the liquid discharge pipe respectively.
Compared with the related art, the VOCs waste gas filter provided by the invention has the following beneficial effects:
1. VOCs waste gas is discharged into the air inlet hose from the air inlet guide pipe, the driving motor is started to drive the stirring rod to stir the activated carbon particles, so that the VOCs waste gas entering the circular shell through the air inlet hose is absorbed by the activated carbon particles, the adsorption capacity of the stirred activated carbon particles is improved, and the situation that the adsorption capacity cannot be utilized due to the fact that partial activated carbon particles are located at the bottom is avoided;
2. hydrogen peroxide is injected into the liquid inlet cavity from the liquid inlet pipe, and then the sponge body is soaked through the liquid flow hole, so that VOCs waste gas entering the sponge body through the through hole of the clamping plate can be subjected to oxidation treatment;
3. VOCs waste gas treated by the oxidation mechanism is discharged to the bottom of the mounting frame along a gap between the second mounting plate and the inner bottom wall of the treatment cavity, enters the mounting frame along with the through hole and is further treated by the activated carbon screen plate in the mounting frame, so that the treatment of the VOCs waste gas is enhanced.
Drawings
FIG. 1 is a schematic diagram of a preferred embodiment of a VOCs exhaust filter according to the present invention;
FIG. 2 is a schematic view of a partial cross-sectional structure of the tank shown in FIG. 1;
FIG. 3 is a schematic diagram of the structure of the adsorption mechanism provided in the present invention;
fig. 4 is a schematic structural view of a filter mechanism provided in the present invention.
Reference numbers in the figures: 1. the device comprises a box body, 2, a liquid inlet cavity, 3, a treatment cavity, 4, an oxidation mechanism, 41, a clamping plate, 42, a sponge body, 43, a through hole, 44, an arc-shaped plate, 45, a liquid flow hole, 5, a first mounting plate, 6, a second mounting plate, 7, an adsorption mechanism, 71, a circular shell, 72, a stirring rod, 73, an air inlet hose, 74, an air exhaust net, 8, a filtering mechanism, 81, a mounting frame, 82, an activated carbon net plate, 83, a through hole, 9, a conveying mechanism, 91, an air inlet conduit, 92, an air exhaust conduit, 93, a liquid inlet pipe, 9a, a liquid collection mechanism, 91a, a waste liquid box, 92a and a liquid discharge pipe.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a VOCs exhaust filter according to the present invention; FIG. 2 is a schematic view of a partial cross-sectional structure of the tank shown in FIG. 1; FIG. 3 is a schematic diagram of the structure of the adsorption mechanism provided in the present invention; fig. 4 is a schematic structural view of a filter mechanism provided in the present invention. The VOCs exhaust gas filter includes: the oxidation device comprises a box body 1, an oxidation mechanism 4, a first mounting plate 5, a second mounting plate 6 and a transmission mechanism 9.
In the specific implementation process, as shown in fig. 1 and 2, the interior of the box body 1 is divided into a liquid inlet cavity 2 and a treatment cavity 3 by a fixedly installed partition plate, the liquid inlet cavity 2 and the treatment cavity 3 are distributed up and down, the oxidation mechanism 4 is installed in the box body 1, the oxidation mechanism 4 comprises a clamping plate 41, a sponge body 42, through holes 43, arc-shaped plates 44 and liquid flow holes 45, the two clamping plates 41 with the same specification are fixedly installed in the treatment cavity 3, two ends of the clamping plate 41 are respectively fixedly connected with the upper cavity wall and the lower cavity wall of the treatment cavity 3, the two clamping plates 41 are provided with a plurality of uniformly distributed through holes 43, the sponge body 42 is fixedly embedded between the two clamping plates 41, the two arc-shaped plates 44 are fixedly installed in the liquid inlet cavity 2, the bottom of the liquid inlet cavity 2 is provided with the liquid flow holes 45 mutually communicated with the top of the sponge body 42, the bottom of the box body 1 is provided with a liquid collection mechanism 9a, and the liquid collection mechanism, two side walls of the waste liquid tank 91a are fixedly connected with liquid discharge cavities formed in two side walls of the treatment cavity 3 through liquid discharge pipes 92a, respectively.
It should be noted that: hydrogen peroxide is injected into the liquid inlet cavity 2 from the liquid inlet pipe 93, and then the sponge body 42 is soaked through the liquid flowing hole 45, so that VOCs waste gas entering the sponge body 42 through the through hole 43 of the clamping plate 41 can be subjected to oxidation treatment, and the generated waste water enters the waste liquid tank 91a through the liquid discharging pipe 92a to be collected.
Referring to fig. 2 and 3, the first mounting plate 5 is fixedly mounted on the inner top wall of the processing chamber 3 and is close to the front end face of the tank 1, and the adsorption mechanism 7 is mounted on the front end face of the first mounting plate 5, and the adsorption mechanism 7 includes a circular housing 71, a plurality of stirring rods 72, an air inlet hose 73 and an air outlet net 74, the circular housing 71 is fixedly mounted on the front end face of the first mounting plate 5, and a driving motor is fixedly mounted at the center of the outer wall of the circular housing 71, the output end of the driving motor extends into the circular housing 71 and is fixedly mounted with the plurality of stirring rods 72, two air inlet hoses 73 are fixedly mounted on the top of the circular housing 71, and the air outlet net 74 for air outlet is mounted at the bottom of the circular housing 71, and a proper amount of activated carbon particles are stored in the circular housing 71, and the diameter of the activated carbon particles is larger.
It should be noted that: open driving motor and drive puddler 72 and stir the active carbon granule, thereby pass through the VOCs waste gas that intake hose 73 entered into in the circular casing 71 and absorb through the active carbon granule, and the active carbon granule after the stirring has increaseed adsorption efficiency, avoided local active carbon granule to make adsorption efficiency not obtain utilizing because of being in the bottom, make VOCs waste gas flow more smooth and easy after the active carbon granule stirring in the circular casing 71 simultaneously, and the waste gas after the processing is discharged through exhaust net 74 and is arranged to splint 41 department along the clearance of diapire in first mounting panel 5 and the treatment chamber 3.
Referring to fig. 2 and 4, the second mounting plate 6 is fixedly mounted on the inner top wall of the processing chamber 3 and is close to the rear end face of the box body 1, the rear end face of the second mounting plate 6 is provided with the filter mechanism 8, the filter mechanism 8 comprises a mounting frame 81, activated carbon screen plates 82 and through holes 83, the mounting frame 81 is fixedly mounted on the rear end face of the second mounting plate 6, the other side wall of the mounting frame 81 is fixedly connected with the inner wall of the rear side of the processing chamber 3, a plurality of groups of activated carbon screen plates 82 are fixedly mounted in the mounting frame 81, the bottom of the mounting frame 81 is provided with a plurality of through holes 83, and the distance between the first mounting plate 5 and the inner bottom wall of the processing chamber 3 and the distance between the second mounting plate.
It should be noted that: VOCs waste gas after oxidation mechanism 4 handles is arranged to the installing frame 81 bottom along the clearance of second mounting panel 6 and the interior diapire of process chamber 3, along with through-hole 83 enter into in the installing frame 81 and by the active carbon otter board 82 further processing in the installing frame 81, consequently strengthened the processing to VOCs waste gas.
Referring to fig. 1, the communicating mechanism 9 is installed on the box body 1, the communicating mechanism 9 includes air inlet conduits 91, air outlet conduits 92 and a liquid inlet pipe 93, the two air inlet conduits 91 are fixedly connected with an air inlet opened on the front end surface of the box body 1, the inner wall of the air inlet is fixedly connected with one end of the air inlet hose 73, the air outlet conduits 92 are fixedly installed on the rear end surface of the box body 1, the air outlet conduits 92 are located above the installation frame 81, and the liquid inlet pipe 93 is fixedly installed on the top of the box body 1.
The working principle of the VOCs waste gas filter provided by the invention is as follows:
VOCs waste gas is discharged into the air inlet hose 73 from the air inlet guide pipe 91, the driving motor is started to drive the stirring rod 72 to stir the activated carbon particles, so that the VOCs waste gas entering the circular shell 71 through the air inlet hose 73 is absorbed through the activated carbon particles, the adsorption capacity of the stirred activated carbon particles is improved, the situation that the adsorption capacity of partial activated carbon particles cannot be utilized due to the fact that the partial activated carbon particles are located at the bottom is avoided, meanwhile, the VOCs waste gas flows more smoothly after the activated carbon particles in the circular shell 71 are stirred, the treated waste gas is discharged through the exhaust net 74 and is discharged to the clamping plate 41 along the gap between the first mounting plate 5 and the inner bottom wall of the treatment cavity 3, hydrogen peroxide is injected into the liquid inlet cavity 2 from the liquid inlet pipe 93, then the sponge 42 is soaked through the liquid flow hole 45, so that the VOCs waste gas entering the sponge 42 through the through hole 43 of the clamping plate 41 can be subjected to oxidation treatment, and the generated waste water enters the waste liquid tank 91a through the, and VOCs waste gas after oxidation mechanism 4 handles arranges to the installing frame 81 bottom along the clearance of diapire in second mounting panel 6 and the treatment chamber 3, along with through-hole 83 enters into in the installing frame 81 and by the active carbon otter board 82 further processing in the installing frame 81, consequently strengthened the processing to VOCs waste gas, can improve filter effect and filtration efficiency cleanliness factor.
The driving motor adopts a Y80M1-2 model, the driving motor operates as an existing conventional circuit, a power supply interface of the driving motor is connected with a power supply system through a switch to realize rotation control of the driving motor, and circuits and control related to the driving motor are the prior art and are not described in detail herein.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A VOCs exhaust filter comprising:
the device comprises a box body (1), wherein the box body (1) is internally divided into a liquid inlet cavity (2) and a treatment cavity (3) through a fixedly installed partition plate, and the liquid inlet cavity (2) and the treatment cavity (3) are distributed up and down;
the oxidation mechanism (4) is installed in the box body (1), the oxidation mechanism (4) comprises clamping plates (41), sponge bodies (42), through holes (43), arc-shaped plates (44) and liquid flowing holes (45), the two clamping plates (41) with the same specification are fixedly installed in the treatment cavity (3), two ends of each clamping plate (41) are fixedly connected with the upper cavity wall and the lower cavity wall of the treatment cavity (3) respectively, the two clamping plates (41) are provided with the through holes (43) which are uniformly distributed, the sponge bodies (42) are fixedly embedded between the two clamping plates (41), the two arc-shaped plates (44) are fixedly installed in the liquid inlet cavity (2), and the bottom of the liquid inlet cavity (2) is provided with the liquid flowing holes (45) which are communicated with the top of the sponge bodies (42);
the first mounting plate (5) is fixedly mounted on the inner top wall of the processing cavity (3) and is close to the front end face of the box body (1), and an adsorption mechanism (7) is mounted on the front end face of the first mounting plate (5);
the second mounting plate (6) is fixedly mounted on the inner top wall of the processing cavity (3) and is close to the rear end face of the box body (1), and a filtering mechanism (8) is mounted on the rear end face of the second mounting plate (6);
the conveying mechanism (9), the conveying mechanism (9) is installed on the box body (1).
2. A VOCs exhaust gas filter according to claim 1, wherein the adsorption mechanism (7) comprises a circular housing (71), stirring rods (72), an air inlet hose (73) and an exhaust net (74), the circular housing (71) is fixedly mounted on the front end surface of the first mounting plate (5), a driving motor is fixedly mounted at the center of the outer wall of the circular housing (71), the output end of the driving motor extends into the circular housing (71) and is fixedly mounted with a plurality of stirring rods (72), two air inlet hoses (73) are fixedly mounted at the top of the circular housing (71), and the exhaust net (74) for exhausting is mounted at the bottom of the circular housing (71).
3. A VOCs exhaust filter as claimed in claim 2 wherein a suitable amount of activated carbon particles are stored in the circular housing (71) and the diameter of the activated carbon particles is greater than the mesh of the exhaust net (74).
4. The VOCs exhaust gas filter of claim 1, wherein the filtering mechanism (8) comprises an installation frame (81), an activated carbon screen plate (82) and through holes (83), the installation frame (81) is fixedly installed on the rear end face of the second installation plate (6), the other side wall of the installation frame (81) is fixedly connected with the inner wall of the rear side of the processing cavity (3), a plurality of groups of activated carbon screen plates (82) are fixedly installed in the installation frame (81), and the bottom of the installation frame (81) is provided with the through holes (83).
5. A VOCs exhaust filter as claimed in claim 1 wherein the first (5) and second (6) mounting plates are spaced 8-12cm from the inner bottom wall of the process chamber (3).
6. A VOCs exhaust gas filter according to any one of claims 1-4, wherein the ducting mechanism (9) comprises an air inlet duct (91), an air outlet duct (92) and an air inlet pipe (93), the two air inlet ducts (91) are fixedly connected with an air inlet opening on the front end face of the box body (1), the inner wall of the air inlet is fixedly connected with one end of an air inlet hose (73), the air outlet duct (92) is fixedly installed on the rear end face of the box body (1), the air outlet duct (92) is located above the installation frame (81), and the air inlet pipe (93) is fixedly installed on the top of the box body (1).
7. A VOCs filter as claimed in claim 1, wherein a liquid collecting mechanism (9a) is mounted at the bottom of the casing (1), the liquid collecting mechanism (9a) comprises a waste liquid tank (91a) and a liquid discharging pipe (92a), and two side walls of the waste liquid tank (91a) are fixedly connected with liquid discharging cavities formed in two side walls of the processing cavity (3) through the liquid discharging pipe (92 a).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011419372.XA CN112844014A (en) | 2020-12-07 | 2020-12-07 | VOCs exhaust gas filter |
| PCT/CN2020/135299 WO2022120729A1 (en) | 2020-12-07 | 2020-12-10 | Vocs waste gas filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011419372.XA CN112844014A (en) | 2020-12-07 | 2020-12-07 | VOCs exhaust gas filter |
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| Publication Number | Publication Date |
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| CN112844014A true CN112844014A (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011419372.XA Pending CN112844014A (en) | 2020-12-07 | 2020-12-07 | VOCs exhaust gas filter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112844014A (en) |
| WO (1) | WO2022120729A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115282754B (en) * | 2022-07-11 | 2024-03-22 | 安徽昊源化工集团有限公司 | Organic waste gas treatment device in chemical production |
| CN115228230B (en) * | 2022-08-17 | 2024-04-09 | 湖南澜焰生物科技有限公司 | High-efficient desulfurization dust collector of retort tail gas |
| CN116183346B (en) * | 2022-12-09 | 2023-07-21 | 河南省产品质量监督检验院 | Quick drying device of heating of food detection |
| CN117225158B (en) * | 2023-06-29 | 2024-05-14 | 上海震福实验室设备有限公司 | Laboratory air supply and exhaust system for improving air supply purification |
| CN116550070B (en) * | 2023-07-07 | 2023-08-29 | 山东和润环保科技有限公司 | Industrial waste gas environmental protection processing apparatus |
| CN117122997B (en) * | 2023-10-08 | 2024-06-14 | 南通汉造装备制造有限公司 | Chemical waste gas treatment equipment |
| CN118718716A (en) * | 2024-09-03 | 2024-10-01 | 四川永沁环境工程有限公司 | Laboratory exhaust treatment device |
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2020
- 2020-12-07 CN CN202011419372.XA patent/CN112844014A/en active Pending
- 2020-12-10 WO PCT/CN2020/135299 patent/WO2022120729A1/en active Application Filing
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| CN105817132A (en) * | 2016-05-26 | 2016-08-03 | 保护伞环保科技成都有限公司 | Formaldehyde purifier |
| CN209848604U (en) * | 2019-01-14 | 2019-12-27 | 广州怡仁环保工程有限公司 | Waste gas purification device with sterilization and disinfection functions |
| CN210302853U (en) * | 2019-07-09 | 2020-04-14 | 江苏中电联瑞玛节能技术有限公司 | Combined type activated carbon efficient adsorption box |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2022120729A1 (en) | 2022-06-16 |
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