CN113069871A - Plastic processing active carbon adsorption device with dust removal function - Google Patents
Plastic processing active carbon adsorption device with dust removal function Download PDFInfo
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- CN113069871A CN113069871A CN202110524131.XA CN202110524131A CN113069871A CN 113069871 A CN113069871 A CN 113069871A CN 202110524131 A CN202110524131 A CN 202110524131A CN 113069871 A CN113069871 A CN 113069871A
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- dust removal
- fixedly connected
- plastic processing
- removal function
- carbon adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a plastic processing activated carbon adsorption device with a dust removal function, and particularly relates to the technical field of adsorption devices. According to the invention, the circulating mechanism is arranged, liquid is sent to the stirring mechanism from the first conduit, the second conduit and the third conduit through the water pump, and is filtered through the adsorption mechanism and the filter screen, so that the generated waste gas and impurity smoke dust are filtered and purified, and the effect of purifying the waste gas is achieved.
Description
Technical Field
The invention relates to the technical field of adsorption devices, in particular to a plastic processing activated carbon adsorption device with a dust removal function.
Background
With the development of science, rubber products become a common industrial product in daily life, with the rapid development of modern chemical industry, especially chemical industry, the variety of rubber products is various, but the production process is basically the same, the raw material of the existing rubber products is usually solid rubber, the solid rubber is plasticated, mixed, molded and vulcanized to form a finished product in turn, the active carbon adsorption device has the advantages of high adsorption efficiency, wide application range, convenient maintenance, and capability of treating various mixed waste gases simultaneously, the equipment is an adsorption equipment for purifying higher-concentration organic waste gases and paint spraying waste gases, and the adsorption equipment utilizes the high-strength adsorption force of the active carbon itself and combines the action of a fan to adsorb organic waste gas molecules, and has good adsorption effect on the waste gases of organic solvents such as benzene, alcohol, ketone, ester, gasoline and the like, and the active carbon adsorption device can be applied to chemical plants, The waste gas purifying agent is used in medicine producing factory, food brewing factory, metallurgy industry and other industry.
In the plastication process, the long-chain rubber molecules are degraded and shortened under the action of mechanical extrusion and friction force of a plasticator, and the long-chain rubber molecules are converted into a plastic state from high-elasticity filling. The mixing is that the plasticated raw rubber is mixed with the compounding ingredients, and the mixture is placed in a rubber mixing mill, and the compounding ingredients are completely and uniformly dispersed in the raw rubber through the mechanical mixing action. In the molding stage, calendering molding, extrusion molding and compression molding are generally adopted, wherein the calendering molding is to press the rubber compound into a rubber sheet with a certain shape and a certain size through a calender; the extrusion molding is to put the rubber compound with certain plasticity into the hopper of an extruder, and perform continuous molding through various types of dies under the extrusion of a screw, wherein the compression molding is to manufacture certain rubber products with complex shapes by using a compression molding method.
Because rubber is usually made of solid rubber, when the rubber or a rubber semi-finished product is heated, part of components in the rubber or the rubber semi-finished product are heated and decomposed, harmful gas is released, and some dust is accompanied, the existing device is not provided with any recovery device to absorb and treat the released harmful gas and dust, but directly discharges the harmful gas and dust into the air, seriously pollutes the air, causes certain damage to the body of constructors, and has the improvement part.
Disclosure of Invention
In order to overcome the above drawbacks of the prior art, embodiments of the present invention provide an adsorption apparatus for plastic processing activated carbon with dust removal function, so as to solve the above problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a plastic processing activated carbon adsorption device with a dust removal function comprises a box body, wherein a stirring mechanism is arranged on the inner bottom surface of the box body, a stirring mechanism is arranged above the stirring mechanism, an exhaust seat is arranged above the adsorption mechanism, the two sides of the box body are provided with symmetrical circulating mechanisms, each circulating mechanism comprises a water pump, the water pumps are arranged on the box body, the bottom of the box body is communicated with a first conduit, the bottom of the first conduit is arranged on the side wall of the box body in a penetrating way and extends to the inside of the stirring mechanism, the top of the water pump is communicated with a second conduit, the top of the second conduit is communicated with a third conduit, the bottom end of the third conduit extends to the inside of the stirring mechanism, the bottom of the box body is provided with a conveying unit, the conveying unit extends to the inside of the stirring mechanism, and air outlet holes are formed in the two sides of the exhaust seat in a penetrating mode.
Further, rabbling mechanism includes the motor, the motor is installed in the inner wall bottom surface of box, the output fixedly connected with pivot of motor, the top of motor is provided with the reservoir, the bottom surface of reservoir is worn to locate by the top of pivot extends to the inside of reservoir and the blade of fixedly connected with symmetry.
Further, the conveying unit comprises a conveying pipe, one end of the conveying pipe penetrates through the side wall of the box body and the bottom surface of the liquid storage tank and extends to the inside of the liquid storage tank, and a valve is installed on the conveying pipe.
Furthermore, the inner wall both sides of reservoir are provided with the fixed block of symmetry, two the top of fixed block is provided with the filter screen.
Further, adsorption equipment is including installing the piece, two installation piece difference fixed connection is in the box, two the top of installation piece is provided with the filter layer, first screw thread through-hole has been seted up in the installation piece, the filter layer has been run through and has been seted up second screw thread through-hole, first screw thread through-hole and second screw thread through-hole threaded connection have the bolt.
Furthermore, the bottom surface of the box body is provided with vibration reduction mechanisms which are arranged in a rectangular array in a pairwise symmetry manner, and the bottom surfaces of the vibration reduction mechanisms are fixedly connected with suckers.
Further, damping mechanism includes the fixing base, the bottom surface fixed connection of fixing base in the top surface of sucking disc, the cavity has been seted up to the inside of fixing base, the fixing base is in the first fixed plate of the top surface fixedly connected with of cavity, the bottom surface fixedly connected with spring of first fixed plate, the bottom surface fixedly connected with second fixed plate of spring, the top surface fixedly connected with telescopic link of second fixed plate, the top surface of first fixed plate and fixing base is worn to locate on the top of telescopic link extends to the outside and the fixed connection in the bottom surface of box of fixing base.
Furthermore, the fixing seat is fixedly connected with a limiting partition plate on the bottom surface of the cavity, and the limiting partition plate is located under the spring and the second fixing plate.
Furthermore, air guide plates are respectively arranged below the two air outlet holes, and the top surfaces of the two air guide plates are fixedly connected to the bottom surface of the exhaust seat.
The invention has the technical effects and advantages that:
1. compared with the prior art, through setting up circulation mechanism, in sending liquid to rabbling mechanism from first pipe, second pipe and third pipe through the water pump, filter through adsorption equipment and filter screen to waste gas and impurity smoke and dust that will produce filter, reach the effect of purification.
2. Compared with the prior art, through setting up damping mechanism, the device during operation can produce the vibration, and during vibration transmission to damping mechanism's spring, the spring stretches out and draws back through deformation to reach the purpose that the buffering was inhaled and is inhaled, reduce the vibration of device.
3. Compared with the prior art, through setting up adsorption apparatus structure and filter screen, carry out first filtration with large granule waste gas smoke and dust by the filter screen after the mixture intensive mixing stirring after stirring in the rabbling mechanism and adsorb the back, tiny waste gas smoke and dust is filtered once more to the smoke and dust through adsorption apparatus structure's filter layer again to carry out secondary filter with the waste gas smoke and dust, reach the purpose of purifying gas smoke and dust.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the tank and the liquid storage tank according to the present invention.
FIG. 3 is a schematic view of a partial cross-sectional structure of the adsorption mechanism of the present invention.
FIG. 4 is a schematic view of the internal structure of the fixing base of the present invention.
The reference signs are: 1. a box body; 2. a stirring mechanism; 3. an adsorption mechanism; 4. a conveying unit; 5. a circulating mechanism; 6. a water pump; 7. a first conduit; 8. a second conduit; 9. a third conduit; 10. an air outlet; 11. a motor; 12. a rotating shaft; 13. a blade; 14. filtering with a screen; 15. a fixed block; 16. mounting blocks; 17. a filter layer; 18. a first threaded through hole; 19. a second threaded through hole; 20. a bolt; 21. a delivery catheter; 22. a valve; 23. a vibration reduction mechanism; 24. a suction cup; 25. a fixed seat; 26. a cavity; 27. a first fixing plate; 28. a spring; 29. a second fixing plate; 30. a telescopic rod; 31. an exhaust seat; 32. a liquid storage tank; 33. a spacing clapboard; 34. an induced draft plate.
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.
As shown in fig. 1-4, a plastic processing activated carbon adsorption device with dust removal function, including box 1, the inside bottom surface of box 1 is provided with rabbling mechanism 2, the top of rabbling mechanism 2 is provided with rabbling mechanism 2, the top of adsorption apparatus 3 is provided with exhaust seat 31, the both sides of box 1 are provided with symmetrical circulation mechanism 5, circulation mechanism 5 includes water pump 6, water pump 6 is installed in box 1, the bottom intercommunication of box 1 has first pipe 7, the bottom of first pipe 7 is worn to locate the lateral wall that box 1 extends to the inside of rabbling mechanism 2, the top intercommunication of water pump 6 has second pipe 8, the top intercommunication of second pipe 8 has third pipe 9, the bottom of third pipe 9 extends to the inside of rabbling mechanism 2, the bottom of box 1 is provided with conveying unit 4, conveying unit 4 extends to the inside of rabbling mechanism 2, exhaust seat 31's both sides run through and have seted up venthole 10.
In a preferred embodiment, rabbling mechanism 2 includes motor 11, motor 11 is installed in the inner wall bottom surface of box 1, motor 11's output fixedly connected with pivot 12, motor 11's top is provided with reservoir 32, the bottom surface that reservoir 32 was worn to locate by the top of pivot 12 extends to the inside of reservoir 32 and the blade 13 of fixedly connected with symmetry, so as to stir the liquid mixture, open motor 11, motor 11 drives pivot 12 and rotates, pivot 12 drives blade 13 and rotates and stir the mixture, thereby reach the mesh of intensive mixing.
In a preferred embodiment, the conveying unit 4 comprises a conveying pipe 21, one end of the conveying pipe 21 is arranged on the side wall of the box body 1 and the bottom surface of the liquid storage tank 32 and extends into the liquid storage tank 32, a valve 22 is arranged on the conveying pipe 21 so as to control the conveying of the materials, and the valve 22 is opened to convey the liquid from the conveying pipe 21 to the interior of the liquid storage tank 32.
In a preferred embodiment, the two sides of the inner wall of the liquid storage tank 32 are provided with symmetrical fixing blocks 15, and a filter screen 14 is arranged above the two fixing blocks 15, so that the mixed liquid is sequentially filtered, and waste residues in the mixed liquid are directly filtered at one side through the filter screen 14.
In a preferred embodiment, the adsorption mechanism 3 includes mounting blocks 16, two mounting blocks 16 are respectively and fixedly connected to the box 1, a filter layer 17 is disposed above the two mounting blocks 16, a first threaded through hole 18 is formed through the mounting blocks 16, a second threaded through hole 19 is formed through the filter layer 17, and bolts 20 are screwed into the first threaded through hole 18 and the second threaded through hole 19, so as to filter the waste residue for the second time, and the gas is delivered to the filter layer 17, so that the impurities in the waste gas are filtered through the filter layer 17.
In a preferred embodiment, the bottom surface of the box 1 is provided with two symmetric vibration damping mechanisms 23 arranged in a rectangular array, the bottom surface of the vibration damping mechanism 23 is fixedly connected with a suction cup 24 so as to enhance the stability of the device, the bottom surface of the box 1 is connected with the suction cup 24 through the vibration damping mechanism 23 and is sucked on the ground through the suction cup 24, thereby achieving the purpose of fixing the device.
In a preferred embodiment, the vibration damping mechanism 23 includes a fixed base 25, the bottom surface of the fixed base 25 is fixedly connected to the top surface of the suction cup 24, a cavity 26 is opened inside the fixed base 25, the fixed base 25 is fixedly connected to a first fixed plate 27 on the top surface of the cavity 26, the bottom surface of the first fixed plate 27 is fixedly connected to a spring 28, the bottom surface of the spring 28 is fixedly connected to a second fixed plate 29, the top surface of the second fixed plate 29 is fixedly connected to an expansion link 30, the top end of the expansion link 30 penetrates through the top surfaces of the first fixed plate 27 and the fixed base 25 to extend to the outside of the fixed base 25 and is fixedly connected to the bottom surface of the box body 1, so as to damp the device, certain mechanical vibration can be generated during the operation of the device, the vibration is transmitted to the spring 28 of the vibration damping mechanism.
In a preferred embodiment, the fixing seat 25 is fixedly connected with a limiting partition plate 33 on the bottom surface of the cavity 26, the limiting partition plate 33 is located right below the spring 28 and the second fixing plate 29, so as to limit and protect the spring 28, when the spring 28 deforms in the cavity 26 in a telescopic manner, the second fixing plate 29 contacts the limiting partition plate 33, the limiting partition plate 33 limits the spring 28 from continuing to deform, a certain space is reserved for the deformation of the spring 28, and the spring 28 is prevented from plastically deforming.
In a preferred embodiment, the air inducing plates 34 are respectively arranged below the two air outlet holes 10, the top surfaces of the two air inducing plates 34 are fixedly connected to the bottom surface of the air exhaust seat 31 so as to accelerate the flow rate of the gas, the air inducing plates 34 are respectively arranged below the two air outlet holes 10, the flow rate of the gas is increased through the air inducing plates 34, the flowing gas is rapidly introduced into the air outlet holes 10 through the air inducing plates 34, and thus the flow rate of the gas is increased, and the gas flow efficiency is accelerated.
The working principle of the invention is as follows: after the device is accomplished, at first open valve 22, send into the reservoir 32 with the material from the inside of conveying pipe 21 inside, open motor 11, motor 11 drives pivot 12 and rotates, pivot 12 drives blade 13 and rotates and stirs the mixture, open water pump 6, water pump 6 takes the mixture out from reservoir 32 is inside, through first pipe 7, second pipe 8, third pipe 9 circulation is sent to reservoir 32 inside, and simultaneously, filter through filter screen 14 one side, waste gas passes through filtering layer 17 secondary filter, thereby filter impurity in the material and doping waste water multiple cycle, thereby reach the purpose of purifying harmful gas such as waste gas, smoke and dust.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. The utility model provides a plastic processing active carbon adsorption device with dust removal function, includes box (1), its characterized in that: the stirring device is characterized in that a stirring mechanism (2) is arranged on the bottom surface inside the box body (1), the stirring mechanism (2) is arranged above the stirring mechanism (2), an exhaust seat (31) is arranged above the adsorption mechanism (3), symmetrical circulating mechanisms (5) are arranged on two sides of the box body (1), each circulating mechanism (5) comprises a water pump (6), each water pump (6) is installed on the box body (1), a first guide pipe (7) is communicated with the bottom of the box body (1), the bottom of each first guide pipe (7) penetrates through the side wall of the box body (1) and extends to the inside of the stirring mechanism (2), a second guide pipe (8) is communicated with the top of each water pump (6), a third guide pipe (9) is communicated with the top of each second guide pipe (8), the bottom of each third guide pipe (9) extends to the inside of the stirring mechanism (2), and a conveying unit (4) is arranged at the bottom of the box body (1), conveying unit (4) extend to the inside of rabbling mechanism (2), venthole (10) have run through to the both sides of exhaust seat (31).
2. The plastic processing activated carbon adsorption device with dust removal function of claim 1, wherein: rabbling mechanism (2) include motor (11), install in the inner wall bottom surface of box (1) motor (11), the output fixedly connected with pivot (12) of motor (11), the top of motor (11) is provided with reservoir (32), the bottom surface that reservoir (32) were worn to locate on the top of pivot (12) extends to inside and the blade (13) of fixedly connected with symmetry of reservoir (32).
3. The plastic processing activated carbon adsorption device with dust removal function of claim 1, wherein: the conveying unit (4) comprises a conveying pipe (21), one end of the conveying pipe (21) penetrates through the side wall of the box body (1) and the bottom surface of the liquid storage tank (32) and extends to the inside of the liquid storage tank (32), and a valve (22) is installed on the conveying pipe (21).
4. The plastic processing activated carbon adsorption device with dust removal function of claim 2, wherein: two sides of the inner wall of the liquid storage tank (32) are provided with symmetrical fixing blocks (15), and filter screens (14) are arranged above the two fixing blocks (15).
5. The plastic processing activated carbon adsorption device with dust removal function of claim 1, wherein: adsorption equipment constructs (3) including installation piece (16), two installation piece (16) fixed connection respectively in box (1), two the top of installation piece (16) is provided with filter layer (17), first screw thread through-hole (18) have been seted up in installation piece (16) run through, second screw thread through-hole (19) have been seted up in filter layer (17), first screw thread through-hole (18) and second screw thread through-hole (19) threaded connection have bolt (20).
6. The plastic processing activated carbon adsorption device with dust removal function of claim 1, wherein: the bottom surface of the box body (1) is provided with vibration reduction mechanisms (23) which are arranged in a rectangular array in a pairwise symmetry mode, and sucking discs (24) are fixedly connected to the bottom surfaces of the vibration reduction mechanisms (23).
7. The plastic processing activated carbon adsorption device with dust removal function of claim 6, wherein: damping mechanism (23) include fixing base (25), the bottom surface fixed connection of fixing base (25) in the top surface of sucking disc (24), cavity (26) have been seted up to the inside of fixing base (25), fixing base (25) are in the first fixed plate (27) of the top surface fixedly connected with of cavity (26), the bottom surface fixedly connected with spring (28) of first fixed plate (27), the bottom surface fixedly connected with second fixed plate (29) of spring (28), the top surface fixedly connected with telescopic link (30) of second fixed plate (29), the top of telescopic link (30) is worn to locate the outside and the fixed connection in the bottom surface of box (1) that the top surface of first fixed plate (27) and fixing base (25) extended to fixing base (25).
8. The plastic processing activated carbon adsorption device with dust removal function of claim 7, wherein: the fixing seat (25) is fixedly connected with a limiting partition plate (33) on the bottom surface of the cavity (26), and the limiting partition plate (33) is located under the spring (28) and the second fixing plate (29).
9. The plastic processing activated carbon adsorption device with dust removal function of claim 1, wherein: and air guide plates (34) are respectively arranged below the two air outlet holes (10), and the top surfaces of the two air guide plates (34) are fixedly connected to the bottom surface of the exhaust seat (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110524131.XA CN113069871A (en) | 2021-05-13 | 2021-05-13 | Plastic processing active carbon adsorption device with dust removal function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110524131.XA CN113069871A (en) | 2021-05-13 | 2021-05-13 | Plastic processing active carbon adsorption device with dust removal function |
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| Publication Number | Publication Date |
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| CN113069871A true CN113069871A (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110524131.XA Withdrawn CN113069871A (en) | 2021-05-13 | 2021-05-13 | Plastic processing active carbon adsorption device with dust removal function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20150112366A (en) * | 2014-03-27 | 2015-10-07 | 주식회사 에이치엔티 | Moving type dust collector |
| CN206924624U (en) * | 2017-07-19 | 2018-01-26 | 青岛同方环境工程设备有限公司 | A kind of desalinization handles apparatus for energy recovery |
| CN206950882U (en) * | 2017-06-15 | 2018-02-02 | 江西奥赛光电有限公司 | A kind of plastic cement processing active carbon adsorbent equipment with dedusting function |
| KR101923502B1 (en) * | 2018-01-25 | 2019-02-27 | 한관우 | Method For Purifying Waste Gas Ann Purification System Using The Method |
| CN211913062U (en) * | 2019-12-26 | 2020-11-13 | 阿拉山口市科学技术局 | Waste gas purification device for desulfurization and denitrification of environmental protection engineering |
| CN212012989U (en) * | 2020-06-22 | 2020-11-24 | 深圳市格信通电子科技有限公司 | Formula of taking precautions against earthquakes integration's audio equipment |
| CN212039560U (en) * | 2020-04-26 | 2020-12-01 | 蔡江燕 | Waste gas treatment equipment |
| CN212237121U (en) * | 2020-05-13 | 2020-12-29 | 浙江捷升建材有限公司 | Dust removal device for coating stirrer |
-
2021
- 2021-05-13 CN CN202110524131.XA patent/CN113069871A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150112366A (en) * | 2014-03-27 | 2015-10-07 | 주식회사 에이치엔티 | Moving type dust collector |
| CN206950882U (en) * | 2017-06-15 | 2018-02-02 | 江西奥赛光电有限公司 | A kind of plastic cement processing active carbon adsorbent equipment with dedusting function |
| CN206924624U (en) * | 2017-07-19 | 2018-01-26 | 青岛同方环境工程设备有限公司 | A kind of desalinization handles apparatus for energy recovery |
| KR101923502B1 (en) * | 2018-01-25 | 2019-02-27 | 한관우 | Method For Purifying Waste Gas Ann Purification System Using The Method |
| CN211913062U (en) * | 2019-12-26 | 2020-11-13 | 阿拉山口市科学技术局 | Waste gas purification device for desulfurization and denitrification of environmental protection engineering |
| CN212039560U (en) * | 2020-04-26 | 2020-12-01 | 蔡江燕 | Waste gas treatment equipment |
| CN212237121U (en) * | 2020-05-13 | 2020-12-29 | 浙江捷升建材有限公司 | Dust removal device for coating stirrer |
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Application publication date: 20210706 |