CN110772905A - Environment-friendly treatment cleaning device - Google Patents
Environment-friendly treatment cleaning device Download PDFInfo
- Publication number
- CN110772905A CN110772905A CN201911122855.0A CN201911122855A CN110772905A CN 110772905 A CN110772905 A CN 110772905A CN 201911122855 A CN201911122855 A CN 201911122855A CN 110772905 A CN110772905 A CN 110772905A
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- China
- Prior art keywords
- fixedly connected
- pipe
- water
- base
- filter screen
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Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000007921 spray Substances 0.000 claims abstract description 27
- 239000000796 flavoring agent Substances 0.000 claims abstract description 17
- 235000019634 flavors Nutrition 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 230000007613 environmental effect Effects 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims description 17
- 238000009423 ventilation Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 239000002912 waste gas Substances 0.000 abstract description 10
- 238000007599 discharging Methods 0.000 abstract description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 2
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 2
- 241001330002 Bambuseae Species 0.000 abstract description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 2
- 239000011425 bamboo Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 4
- 230000001877 deodorizing effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
-
- 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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
-
- 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
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
-
- 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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/79—Regeneration of the filtering material or filter elements inside the filter by liquid process
-
- 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
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
- B01D53/185—Liquid distributors
-
- 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
- B01D53/79—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The invention discloses an environment-friendly treatment cleaning device, which relates to the technical field of waste gas environment-friendly treatment cleaning equipment and comprises a base, wherein a water leakage groove is formed in the base, a water collecting tank is arranged at the bottom of the water leakage groove, a water discharging pipe is fixedly connected to the side surface of the water collecting tank, a control valve is fixedly connected to the inside of the water discharging pipe, a treatment box is fixedly connected to the top of the base, a filter screen cylinder is arranged in the treatment box and fixedly connected with the treatment box, two sides of the inner wall of the treatment box are fixedly connected with clamping hoops which are uniformly distributed, and a first spraying pipe is clamped in the clamping hoops. This environmental protection processing cleaning device sets up through the cooperation between cylinder, push rod and the clean brush, need not to pull down the change when clearing up the filter screen section of thick bamboo, has made things convenient for staff's operation, through setting up the second spray pipe and removing the flavor liquid case, has reached and has carried out the purpose that removes the flavor to waste gas.
Description
Technical Field
The invention relates to the technical field of waste gas environment-friendly treatment and cleaning equipment, in particular to an environment-friendly treatment and cleaning device.
Background
Along with the rapid development of society and the updating of industrial products, more and more waste gas is discharged, the living environment around is seriously polluted, the waste gas refers to toxic and harmful gas discharged by human beings in the production and life processes, particularly chemical plants, steel plants, pharmaceutical plants, coking plants and the like, the discharged waste gas has large smell, and the waste gas contains a large amount of dust particles and harmful substances.
Disclosure of Invention
The present invention is directed to an environmental protection cleaning device to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: an environment-friendly treatment cleaning device comprises a base, wherein a water leakage groove is formed in the base, a water collecting tank is arranged at the bottom of the water leakage groove, a drain pipe is fixedly connected to the side surface of the water collecting tank, a control valve is fixedly connected to the inside of the drain pipe, a treatment box is fixedly connected to the top of the base, a filter screen cylinder is arranged in the treatment box and fixedly connected with the treatment box, clamps which are uniformly arranged are fixedly connected to two sides of the inner wall of the treatment box, a first spraying pipe is clamped in the clamps, and a first spraying head is fixedly connected to the side surface of the first spraying pipe;
the water collecting tank is provided with water storage tanks on two sides, a water inlet pipe is fixedly connected to the side surface of the water storage tank, a first lifting pump is fixedly connected to one end, away from the water storage tank, of the water inlet pipe, a water outlet pipe is fixedly connected to the side surface of the first lifting pump, one end, away from the first lifting pump, of the water outlet pipe is fixedly connected with a first spray pipe, a supporting frame is fixedly connected to the top of the treatment tank, a cylinder is arranged on one side of the supporting frame, the bottom of the cylinder is fixedly connected with an installation seat, the bottom surface of the installation seat is fixedly connected with the top surface of the treatment tank, a push rod is movably connected to the interior of;
the utility model discloses a deodorizing device for the automobile, including support frame, the inside fixedly connected with second spray pipe of removing the flavor case, the bottom fixedly connected with second sprinkler head of second spray pipe, the equal fixedly connected with breather pipe in both sides of removing the flavor case, the top of breather pipe is provided with the gas vent, the top fixedly connected with who removes the flavor case removes the flavor liquid case, remove one side fixedly connected with transfer line of flavor liquid case, one side fixedly connected with second elevator pump of transfer line, the bottom of second elevator pump with remove flavor case fixed connection, one side fixedly connected with connecting pipe of second elevator pump, the front side and the rear side of handling the case all are provided with the fan, the bottom surface of fan and the top surface fixed connection of base, one side fixedly connected with aspiration channel of fan, the opposite side fixedly connected with ventilation pipe of fan.
Preferably, the first and second spraying heads are both in a T shape, and the number of the water leakage grooves is two.
Preferably, the push rod penetrates through the mounting seat, and the drain pipe penetrates through the left side wall of the base and is fixedly connected with the base.
Preferably, the bottom surface of the water storage tank is fixedly connected with the top surface of the base, and the bottom of the first lifting pump is fixedly connected with the top of the water storage tank.
Preferably, the outer side surface of the cleaning brush is movably connected with the filter screen cylinder, and the bottom of the cylinder is fixedly connected with the top of the treatment box.
Preferably, the ventilation pipe penetrates through the treatment box and is fixedly connected with the filter screen cylinder, and the connecting pipe penetrates through the top wall of the odor removal box and is fixedly connected with the second spraying pipe.
Compared with the prior art, the invention has the beneficial effects that:
(1) this environmental protection processing cleaning device sets up through the cooperation between cylinder, push rod and the clean brush, need not to pull down the change when clearing up the filter screen section of thick bamboo, has made things convenient for staff's operation, through setting up the second spray line and removing the flavor liquid case, has reached and has removed the purpose of flavor to waste gas.
(2) This environmental protection processing cleaning device through setting up the second spray line, has strengthened the treatment effect to peculiar smell in the waste gas, through setting up the clamp, has reached the purpose of fixed first spray line, through setting up first spray line and first sprinkler head, has made things convenient for wasing the incasement portion of handling.
Drawings
FIG. 1 is a schematic cross-sectional front view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic side view of the cross-sectional structure of the present invention;
fig. 4 is a schematic perspective view of the base of the present invention.
In the figure: 1. a base; 2. a water leakage groove; 3. a water collection tank; 4. a drain pipe; 5. a control valve; 6. a treatment tank; 7. a filter screen cylinder; 8. clamping a hoop; 9. a first spray pipe; 10. a first sprinkler head; 11. a water storage tank; 12. a water inlet pipe; 13. a first lift pump; 14. a water outlet pipe; 15. a support frame; 16. a cylinder; 17. a mounting seat; 18. a push rod; 19. cleaning the brush; 20. a deodorizing box; 21. a second spray pipe; 22. a second spray head; 23. a breather pipe; 24. an exhaust port; 25. a deodorizing liquid tank; 26. a transfusion tube; 27. a second lift pump; 28. a connecting pipe; 29. a fan; 30. an air suction pipe; 31. and a vent pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: an environment-friendly treatment cleaning device comprises a base 1, wherein a water leakage groove 2 is formed in the base 1, the number of the water leakage grooves 2 is two, a water collecting tank 3 is arranged at the bottom of the water leakage groove 2, a water discharging pipe 4 is fixedly connected to the side surface of the water collecting tank 3, the water discharging pipe 4 penetrates through the left side wall of the base 1 and is fixedly connected with the base 1, a control valve 5 is fixedly connected to the inside of the water discharging pipe 4, a treatment tank 6 is fixedly connected to the top of the base 1, a filter screen cylinder 7 is arranged in the treatment tank 6, the filter screen cylinder 7 is fixedly connected with the treatment tank 6, evenly-arranged clamps 8 are fixedly connected to two sides of the inner wall of the treatment tank 6, a first spray pipe 9 is clamped in the clamp 8, the purpose of fixing the first spray pipe 9 is achieved by arranging the clamp 8, a first spray head 10 is fixedly connected to the side surface of the first spray pipe 9, and the first spray head 9, the inside of the treatment box 6 is convenient to clean;
both sides of the water collecting tank 3 are provided with water storage tanks 11, the bottom surface of the water storage tank 11 is fixedly connected with the top surface of the base 1, the side surface of the water storage tank 11 is fixedly connected with a water inlet pipe 12, one end of the water inlet pipe 12 far away from the water storage tank 11 is fixedly connected with a first lifting pump 13, the bottom of the first lifting pump 13 is fixedly connected with the top of the water storage tank 11, one side of the first lifting pump 13 is fixedly connected with a water outlet pipe 14, one end of the water outlet pipe 14 far away from the first lifting pump 13 is fixedly connected with a first spraying pipe 9, the top of the treatment tank 6 is fixedly connected with a supporting frame 15, one side of the supporting frame 15 is provided with a cylinder 16, the bottom of the cylinder 16 is fixedly connected with the top of the treatment tank 6, the bottom of the cylinder 16 is fixedly connected with a mounting seat 17, the bottom surface of the mounting seat 17 is fixedly connected with the top, the outer side surface of the cleaning brush 19 is movably connected with the filter screen cylinder 7, and the filter screen cylinder 7 is not required to be detached and replaced when cleaned through the matching arrangement of the air cylinder 16, the push rod 18 and the cleaning brush 19, so that the operation of workers is facilitated;
the top of the support frame 15 is fixedly connected with a smell removing box 20, the inside of the smell removing box 20 is fixedly connected with a second spray pipe 21, the bottom of the second spray pipe 21 is fixedly connected with a second spray head 22, the first spray head 10 and the second spray head 22 are both in a T shape, both sides of the smell removing box 20 are fixedly connected with vent pipes 23, the top of the vent pipes 23 is provided with exhaust ports 24, the top of the smell removing box 20 is fixedly connected with a smell removing liquid box 25, the aim of removing smell of waste gas is achieved by arranging the second spray pipe 21 and the smell removing liquid box 25, one side of the smell removing liquid box 25 is fixedly connected with a liquid conveying pipe 26, one side of the liquid conveying pipe 26 is fixedly connected with a second lift pump 27, the bottom of the second lift pump 27 is fixedly connected with the smell removing box 20, one side of the second lift pump 27 is fixedly connected with a connecting pipe 28, the connecting pipe 28 penetrates through the top, the front side and the rear side of the treatment box 6 are both provided with a fan 29, the bottom surface of the fan 29 is fixedly connected with the top surface of the base 1, one side of the fan 29 is fixedly connected with an air suction pipe 30, the other side of the fan 29 is fixedly connected with a ventilation pipe 31, and the ventilation pipe 31 penetrates through the treatment box 6 and is fixedly connected with the filter screen cylinder 7.
The working principle is as follows: by starting the fan 29, the exhaust suction pipe 30 sucks in the exhaust gas, the exhaust gas is conveyed to the inside of the treatment box 6 through the ventilation pipe 31, dust particles in the exhaust gas are filtered through the filter screen cylinder 7, the filtered exhaust gas enters the inside of the odor removal box 20 through the ventilation pipe 23, the second lift pump 27 is started, the odor removal liquid is conveyed from the inside of the odor removal liquid box 25 to the second spray pipe 21 through the liquid conveying pipe 26 and the connecting pipe 28 and is sprayed through the second spray head 22, the odor removal is further performed on the filtered exhaust gas, so as to avoid the situation of physical discomfort of workers, when the filter screen cylinder 7 needs to be cleaned, the push rod 18 drives the cleaning brush 19 to move up and down by starting the air cylinder 16, the filter screen cylinder 7 is cleaned in the up and down moving mode, the cleaning effect on the filter screen cylinder 7 is improved, meanwhile, the first lift pump 13 conveys the water in the water storage tank 11 to the inside of the first spray pipe 9 through the water inlet pipe 12 and the water outlet pipe 14, and sprayed out through the first spraying head 10 to clean the inside of the treatment tank 6, and the cleaned sewage flows into the water collection tank 3 through the water leakage tank 2 to wait for discharge.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an environmental protection processing cleaning device, includes base (1), its characterized in that: a water leakage groove (2) is formed in the base (1), a water collecting tank (3) is arranged at the bottom of the water leakage groove (2), a drain pipe (4) is fixedly connected to the side surface of the water collecting tank (3), a control valve (5) is fixedly connected to the inside of the drain pipe (4), a treatment tank (6) is fixedly connected to the top of the base (1), a filter screen cylinder (7) is arranged in the treatment tank (6), the filter screen cylinder (7) is fixedly connected with the treatment tank (6), two sides of the inner wall of the treatment tank (6) are fixedly connected with clamp hoops (8) which are uniformly arranged, a first spraying pipe (9) is clamped in the clamp hoops (8), and a first spraying head (10) is fixedly connected to the side surface of the first spraying pipe (9);
both sides of the water collecting tank (3) are provided with water storage tanks (11), the side surfaces of the water storage tanks (11) are fixedly connected with water inlet pipes (12), one end of the water inlet pipe (12) far away from the water storage tank (11) is fixedly connected with a first lifting pump (13), a water outlet pipe (14) is fixedly connected to the side surface of the first lifting pump (13), one end of the water outlet pipe (14) far away from the first lifting pump (13) is fixedly connected with the first spraying pipe (9), the top of the treatment box (6) is fixedly connected with a support frame (15), one side of the support frame (15) is provided with an air cylinder (16), the bottom of the cylinder (16) is fixedly connected with an installation seat (17), the bottom surface of the installation seat (17) is fixedly connected with the top surface of the treatment box (6), a push rod (18) is movably connected inside the air cylinder (16), and the bottom of the push rod (18) is fixedly connected with a cleaning brush (19);
the top fixedly connected with of support frame (15) removes flavor case (20), the inside fixedly connected with second spray tube (21) of removing flavor case (20), the bottom fixedly connected with second sprinkler head (22) of second spray tube (21), the equal fixedly connected with breather pipe (23) in both sides of removing flavor case (20), the top of breather pipe (23) is provided with gas vent (24), the top fixedly connected with that removes flavor case (20) removes flavor liquid case (25), one side fixedly connected with transfer line (26) of removing flavor liquid case (25), one side fixedly connected with second elevator pump (27) of transfer line (26), the bottom of second elevator pump (27) with remove flavor case (20) fixed connection, one side fixedly connected with connecting pipe (28) of second elevator pump (27), the front side and the rear side of handling case (6) all are provided with fan (29), the bottom surface of fan (29) and the top surface fixed connection of base (1), one side fixedly connected with aspiration channel (30) of fan (29), the opposite side fixedly connected with ventilation pipe (31) of fan (29).
2. The environmental-friendly disposal cleaning apparatus according to claim 1, wherein: the first sprinkler head (10) and the second sprinkler head (22) are both in a T shape, and the number of the water leakage grooves (2) is two.
3. The environmental-friendly disposal cleaning apparatus according to claim 1, wherein: the push rod (18) penetrates through the mounting seat (17), and the drain pipe (4) penetrates through the left side wall of the base (1) and is fixedly connected with the base (1).
4. The environmental-friendly disposal cleaning apparatus according to claim 1, wherein: the bottom surface of the water storage tank (11) is fixedly connected with the top surface of the base (1), and the bottom of the first lifting pump (13) is fixedly connected with the top of the water storage tank (11).
5. The environmental-friendly disposal cleaning apparatus according to claim 1, wherein: the outer side surface of the cleaning brush (19) is movably connected with the filter screen cylinder (7), and the bottom of the cylinder (16) is fixedly connected with the top of the treatment box (6).
6. The environmental-friendly disposal cleaning apparatus according to claim 1, wherein: the ventilation pipe (31) penetrates through the treatment box (6) and is fixedly connected with the filter screen cylinder (7), and the connecting pipe (28) penetrates through the top wall of the odor removal box (20) and is fixedly connected with the second spraying pipe (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911122855.0A CN110772905A (en) | 2019-11-16 | 2019-11-16 | Environment-friendly treatment cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911122855.0A CN110772905A (en) | 2019-11-16 | 2019-11-16 | Environment-friendly treatment cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110772905A true CN110772905A (en) | 2020-02-11 |
Family
ID=69391607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911122855.0A Pending CN110772905A (en) | 2019-11-16 | 2019-11-16 | Environment-friendly treatment cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110772905A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113244715A (en) * | 2021-06-15 | 2021-08-13 | 杭州老板电器股份有限公司 | Oil filter device and lampblack absorber |
| CN113932240A (en) * | 2021-10-26 | 2022-01-14 | 平湖德润环保节能科技有限责任公司 | Multi-stage harmful gas purification device for boiler waste heat recovery power generation equipment |
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| JP2019002605A (en) * | 2017-06-13 | 2019-01-10 | 株式会社竹中工務店 | Open air processing unit |
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2019
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| JP2019002605A (en) * | 2017-06-13 | 2019-01-10 | 株式会社竹中工務店 | Open air processing unit |
| CN206965494U (en) * | 2017-06-27 | 2018-02-06 | 重庆融通绿源环保股份有限公司 | A kind of dedusting deodoration system |
| CN107952334A (en) * | 2017-11-17 | 2018-04-24 | 淮安龙马羽绒制品有限公司 | A kind of air cleaning unit for livestock-raising |
| CN207722490U (en) * | 2017-12-04 | 2018-08-14 | 陇东学院 | A kind of exhaust-gas treatment environmental protecting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113244715A (en) * | 2021-06-15 | 2021-08-13 | 杭州老板电器股份有限公司 | Oil filter device and lampblack absorber |
| CN113932240A (en) * | 2021-10-26 | 2022-01-14 | 平湖德润环保节能科技有限责任公司 | Multi-stage harmful gas purification device for boiler waste heat recovery power generation equipment |
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Application publication date: 20200211 |