CN112604499A - General tail gas processing apparatus of energy-concerving and environment-protective machinery - Google Patents
General tail gas processing apparatus of energy-concerving and environment-protective machinery Download PDFInfo
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- CN112604499A CN112604499A CN202011325403.5A CN202011325403A CN112604499A CN 112604499 A CN112604499 A CN 112604499A CN 202011325403 A CN202011325403 A CN 202011325403A CN 112604499 A CN112604499 A CN 112604499A
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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
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
- B01D53/885—Devices in general for catalytic purification of waste gases
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- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0038—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions with means for influencing the odor, e.g. deodorizing substances
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- 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
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- 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
- B01D46/88—Replacing filter elements
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
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Abstract
The invention discloses a general tail gas treatment device for energy-saving and environment-friendly machinery, relates to the technical field of tail gas treatment, and aims to solve the problem that tail gas of existing environment-friendly equipment is directly discharged without being effectively treated and pollutes air. The bottom of tail gas processing apparatus is provided with the supporting leg, one side of tail gas processing apparatus is provided with the air inlet, tail gas processing apparatus's opposite side is provided with the gas vent, tail gas processing apparatus's last surface mounting has the display screen, one side of display screen is provided with the button, one side of button is provided with the feed inlet, tail gas processing apparatus's internally mounted has purifier, and purifier's one side and air inlet fixed connection.
Description
Technical Field
The invention relates to the technical field of tail gas treatment, in particular to a universal tail gas treatment device for energy-saving and environment-friendly machinery.
Background
The environmental protection equipment refers to mechanical products, structures and systems manufactured and built by production units or building and installation units for controlling environmental pollution and improving environmental quality. It is also believed that the environmental protection equipment refers to the mechanical processing products for treating environmental pollution, such as dust remover, welding fume purifier, monomer water treatment equipment, noise controller, etc. This knowledge is not comprehensive. The environment-friendly equipment also comprises power equipment for conveying the fluid substance containing the pollutants, such as a water pump, a fan, a conveyor and the like; meanwhile, the device also comprises monitoring and controlling instruments, such as a detecting instrument, a pressure gauge, a flow monitoring device and the like, which ensure the normal operation of the pollution prevention and control facility. Environmental governance is a very slow matter, and people should pay more attention to environmental protection. The environmental protection equipment should include a complete set of equipment: such as air purifiers, sewage treatment equipment, ozone generators, industrial oxygen generators, and the like. The device can improve or treat the environment in industry or at home.
Tail gas of the existing environment-friendly equipment is not effectively treated when being discharged, is directly discharged, can pollute air, and is difficult to match due to different types of exhaust ports of the environment-friendly equipment; therefore, the existing requirements are not met, and an energy-saving and environment-friendly mechanical universal tail gas treatment device is provided for the requirements.
Disclosure of Invention
The invention aims to provide a tail gas treatment device for energy-saving and environment-friendly machinery, which aims to solve the problem that tail gas of the existing environment-friendly equipment provided in the background art is not effectively treated and is directly discharged to pollute air.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a general tail gas processing apparatus of energy-concerving and environment-protective machinery, includes tail gas processing apparatus, tail gas processing apparatus's bottom is provided with the supporting leg, one side of tail gas processing apparatus is provided with the air inlet, tail gas processing apparatus's opposite side is provided with the gas vent, tail gas processing apparatus's last surface mounting has the display screen, one side of display screen is provided with the button, one side of button is provided with the feed inlet, tail gas processing apparatus's internally mounted has purifier, and purifier's one side and air inlet fixed connection.
Preferably, one side of air inlet is provided with the connector, the air inlet valve is installed to the preceding terminal surface of air inlet, the air discharge valve is installed to the preceding terminal surface of gas vent, the internally mounted of gas vent has the waffle slab, and the waffle slab is provided with two, install the air discharge fan between the waffle slab, the delivery port is installed to tail gas processing apparatus's bottom, install out water valve on the delivery port, the universal wheel is installed to the supporting leg inboard.
Preferably, the top of universal wheel is provided with the mounting panel, and the universal wheel passes through mounting panel and tail gas processing apparatus's bottom fixed connection, install the buckle on the universal wheel, the preceding terminal surface of mounting panel is provided with the spout, install smooth button on the spout, and smooth button and spout sliding connection.
Preferably, the access door is installed to tail gas processing apparatus's preceding terminal surface, and the access door is provided with two, the door-hinge is installed to one side of access door, and the access door passes through the door-hinge and is connected with tail gas processing apparatus's preceding terminal surface rotation, the doorknob is installed to the preceding terminal surface of access door, the below of doorknob is provided with the key hole.
Preferably, install the closing cap on the feed inlet, fixed the knot is installed to the preceding terminal surface of closing cap, and fixed the knot is provided with two, the heat dissipation frame is installed to tail gas processing apparatus's rear end face, and the heat dissipation frame is provided with two, the preceding terminal surface of heat dissipation frame is provided with the louvre, and the louvre is provided with a plurality of.
Preferably, one side of the purification device is provided with a heater, a fixing frame is arranged on the heater, a connecting pipe is arranged above the heater, a fixing plate is arranged in the purification device, and a heating ring is arranged on the fixing plate.
Preferably, one side of connecting pipe is provided with filter equipment, the mounting bracket is installed to filter equipment's rear end face, the both sides of mounting bracket all are provided with set screw, and the mounting bracket passes through set screw and tail gas treatment device's inner wall threaded connection.
Preferably, the wireless sensor is installed on the filtering device, a filtering plate is installed inside the filtering device, the number of the filtering plates is three, the filtering plate is connected with the filtering device in a sliding mode, and a handle is installed on the front end face of the filtering plate.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention arranges a purifying device and a filtering device in the tail gas processing device, one side of the filtering device is provided with a heater, the inside of the filtering device is provided with a heating ring, catalyst is poured into the purifying device through a feed inlet, a sealing cover is covered and fixed by a fixing buckle, a sealing ring is arranged on the sealing cover to prevent tail gas from leaking out through the feed inlet, a tail gas discharge port is fixedly connected with an air inlet through a connecting port, an air inlet valve is opened to ensure that the tail gas enters the purifying device, the heater ensures that the heating ring heats the purifying device, accelerates the chemical reaction of harmful substances in the waste gas under the action of the catalyst and the temperature to be converted into nontoxic water and carbon dioxide, improves the working efficiency of the tail gas processing device, the carbon dioxide can enter the filtering device through a connecting pipe, the filtering device is internally provided with, be metal respectively and separate gauze, import cotton fiber filter and active carbon filter, filter the carbon dioxide to deodorization effect is obvious when filterable, makes tail gas environmental protection more when discharging, reduces the atmosphere pollution.
2. Through installing wireless sensor on filter equipment, its type is NH156, can monitor the in service behavior of the filter in the filter equipment, and with the data transmission who detects on the display screen, be convenient for observe the in service behavior of filter, in time change the filter through the access door, and be provided with the air discharge fan in the inside of gas vent, accelerate to discharging the gas that has handled, install the shrink ring in the connection, the accessible rotates the connector and adjusts the shrink ring, thereby make the connector can adapt to different environmental protection equipment's gas vent model, the suitability of improving the device.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the back structure of the present invention;
FIG. 4 is a schematic top view of the present invention;
FIG. 5 is an enlarged view of the internal structure of the exhaust port of the present invention;
in the figure: 1. a tail gas treatment device; 2. supporting legs; 3. an access door; 4. an air inlet; 5. a connecting port; 6. an intake valve; 7. a feed inlet; 8. sealing the cover; 9. a fixing buckle; 10. an exhaust port; 11. an exhaust valve; 12. a door shaft; 13. a door handle; 14. a key hole; 15. mounting a plate; 16. buckling; 17. a universal wheel; 18. a slide button; 19. a chute; 20. a purification device; 21. a filtration device; 22. a connecting pipe; 23. a heater; 24. a fixed mount; 25. a heating ring; 26. a fixing plate; 27. a mounting frame; 28. a set screw; 29. a wireless sensor; 30. a heat dissipation frame; 31. heat dissipation holes; 32. a display screen; 33. a button; 34. a grid plate; 35. an exhaust fan; 36. a filter plate; 37. a handle; 38. a water outlet; 39. and a water outlet valve.
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.
Referring to fig. 1-5, an embodiment of the present invention is shown: the utility model provides a general tail gas processing apparatus of energy-concerving and environment-protective machinery, including tail gas processing apparatus 1, the bottom of tail gas processing apparatus 1 is provided with supporting leg 2, one side of tail gas processing apparatus 1 is provided with air inlet 4, the opposite side of tail gas processing apparatus 1 is provided with gas vent 10, tail gas processing apparatus 1's last surface mounting has display screen 32, one side of display screen 32 is provided with button 33, one side of button 33 is provided with feed inlet 7, the internally mounted of tail gas processing apparatus 1 has purifier 20, and one side and 4 fixed connection of air inlet of purifier 20.
Furthermore, a connecting port 5 is arranged on one side of the air inlet 4, an air inlet valve 6 is arranged on the front end face of the air inlet 4, an exhaust valve 11 is arranged on the front end face of the exhaust port 10, grid plates 34 are arranged inside the exhaust port 10, two grid plates 34 are arranged, an exhaust fan 35 is arranged between the grid plates 34, a water outlet 38 is arranged at the bottom of the tail gas treatment device 1, a water outlet valve 39 is arranged on the water outlet 38, universal wheels 17 are arranged on the inner sides of the supporting legs 2, contraction rings are arranged in the connecting port 5 and can be adjusted by rotating the connecting port 5, so that the connecting port 5 can adapt to exhaust port models of different environmental protection equipment, the applicability of the device is improved, the exhaust fan 35 in the exhaust port 10 can accelerate the emission of treated gas, the working efficiency of the device is improved, and the universal wheels 17 improve the flexibility, when the water needs to be drained, the water outlet valve 39 is opened, and the water is drained through the water outlet 38.
Further, the top of universal wheel 17 is provided with mounting panel 15, and the universal wheel 17 passes through mounting panel 15 and tail gas processing apparatus 1's bottom fixed connection, install buckle 16 on the universal wheel 17, the preceding terminal surface of mounting panel 15 is provided with spout 19, install smooth button 18 on the spout 19, and smooth button 18 and spout 19 sliding connection, smooth button 18 on the accessible slip spout 19 is receive and release universal wheel 17, when needs move the device, emit universal wheel 17 can the mobile device, when need not to remove, can pack up universal wheel 17, can put down buckle 16 again, fix universal wheel 17, and is convenient and fast.
Further, access door 3 is installed to the preceding terminal surface of tail gas processing apparatus 1, and access door 3 is provided with two, door-hinge 12 is installed to one side of access door 3, and access door 3 rotates with the preceding terminal surface of tail gas processing apparatus 1 through door-hinge 12 and is connected, door handle 13 is installed to the preceding terminal surface of access door 3, the below of door handle 13 is provided with key hole 14, access door 3 conveniently overhauls and maintains the inside of device, it can to lock through key hole 14 not using access door 3, the mistake of access door 3 when using has also been avoided simultaneously to open.
Further, install the closing cap 8 on the feed inlet 7, the preceding terminal surface of closing cap 8 is installed and is fixed detained 9, and fixed detain 9 and be provided with two, heat dissipation frame 30 is installed to tail gas processing apparatus 1's rear end face, and heat dissipation frame 30 is provided with two, the preceding terminal surface of heat dissipation frame 30 is provided with louvre 31, and louvre 31 is provided with a plurality of, closing cap 8 on the feed inlet 7 opens and closes through fixed knot 9, do not use and utilize fixed knot 9 to close the entering of avoiding the dust, and the sealing washer has been installed on the closing cap 8, it leaks away through feed inlet 7 to avoid untreated putting into tail gas, louvre 31 can dispel the heat to the inside of device, avoid the inside of device overheated, the life of problem appears and influences the device.
Further, one side of the purification device 20 is provided with a heater 23, the heater 23 is provided with a fixing frame 24, a connecting pipe 22 is installed above the heater 23, a fixing plate 26 is arranged inside the purification device 20, a heating ring 25 is installed on the fixing plate 26, a catalyst is poured into the purification device 20 through the feed inlet 7, a tail gas discharge port is fixedly connected with the gas inlet 4 through the connecting port 5, the gas inlet valve 6 is opened to enable tail gas to enter the purification device 20, the heater 23 enables the heating ring 25 to heat the purification device 20, chemical reaction of harmful substances in the waste gas is accelerated under the action of the catalyst and the temperature, the harmful substances are converted into nontoxic water and carbon dioxide, and the working efficiency of the tail gas treatment device 1 is improved.
Further, one side of connecting pipe 22 is provided with filter equipment 21, mounting bracket 27 is installed to filter equipment 21's rear end face, mounting bracket 27's both sides all are provided with set screw 28, and mounting bracket 27 passes through set screw 28 and tail gas processing apparatus 1's inner wall threaded connection, carbon dioxide that generates through purifier 20 can pass through in connecting pipe 22 gets into filter equipment 21, there is three-layer filter 36 in the filter equipment, it separates the gauze to be the metal respectively, import cotton fiber filter and active carbon filter, filter carbon dioxide, and deodorization effect is obvious when filterable, make tail gas environmental protection more when discharging, reduce the atmosphere pollution.
Further, install wireless sensor 29 on filter equipment 21, filter equipment 21's internally mounted has filter 36, and filter 36 is provided with threely, filter 36 and filter equipment 21 sliding connection, handle 37 is installed to the preceding terminal surface of filter 36, wireless sensor 29 can monitor the in service behavior of filter 36 in filter equipment 21, and data transmission to the display screen 32 of monitoring, be convenient for observe the in service behavior of filter 36, in time change filter 36 through access door 3, it can to change to only need to pull out filter 36 through handle 37 when changing filter 36 simultaneously, convenient and fast.
The working principle is as follows: when in use, firstly, the catalyst is poured into the purification device 20 through the feed inlet 7, the sealing cover 8 is covered and fixed by the fixing buckle 9, the sealing ring is arranged on the sealing cover 8 to prevent tail gas from leaking out through the feed inlet 7, then the tail gas discharge port is fixedly connected with the air inlet 4 through the connecting port 5, the contraction ring is arranged in the connecting port 5, the contraction ring can be adjusted by rotating the connecting port 5, so that the connecting port 5 can adapt to the exhaust port models of different environment-friendly equipment, the applicability of the device is improved, the tail gas enters the purification device 20 by opening the air inlet valve 6, the heating ring 25 heats the purification device 20 by the heater 23, the chemical reaction of harmful substances in the waste gas is accelerated under the action of the catalyst and the temperature, the harmful water and the carbon dioxide are converted into nontoxic water and carbon dioxide, the working efficiency of the tail gas treatment device 1 is improved, and the water discharged, carbon dioxide enters the filter device 21 through the connecting pipe 22, three layers of filter plates 36 are arranged in the filter device 21 and are respectively a metal screen, an inlet cotton fiber filter plate and an active carbon filter plate, the carbon dioxide is filtered, the deodorization effect is obvious during filtering, the tail gas is more environment-friendly during emission, the atmosphere pollution is reduced, the exhaust valve 11 is opened, the treated tail gas is discharged through the exhaust port 10, the exhaust fan 35 is arranged inside the exhaust port 10, the emission of the treated gas is accelerated, the wireless sensor 29 arranged on the filter device 21 can monitor the use condition of the filter plates 36 in the filter device 21 and send the monitored data to the display screen 32, the use condition of the filter plates 36 can be observed conveniently, the filter plates 36 can be replaced through the access door 3 in time, and meanwhile, the filter plates 36 only need to be pulled out by the handle 37 for replacement when the filter plates 36 are replaced, convenient and fast installs slide button 18 on the spout 19 simultaneously, and slide button 18 and spout 19 sliding connection, and slide button 18 on the accessible slide spout 19 receive and releases universal wheel 17, when needs move the device, emits universal wheel 17 can the mobile device, when need not to remove, can pack up universal wheel 17, can put down buckle 16 again, fixes universal wheel 17.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a general tail gas processing apparatus of energy-concerving and environment-protective machinery, includes tail gas processing apparatus (1), its characterized in that: the bottom of tail gas processing apparatus (1) is provided with supporting leg (2), one side of tail gas processing apparatus (1) is provided with air inlet (4), the opposite side of tail gas processing apparatus (1) is provided with gas vent (10), the last surface mounting of tail gas processing apparatus (1) has display screen (32), one side of display screen (32) is provided with button (33), one side of button (33) is provided with feed inlet (7), the internally mounted of tail gas processing apparatus (1) has purifier (20), and one side and air inlet (4) fixed connection of purifier (20).
2. The general tail gas treatment device of energy-saving and environment-friendly machinery of claim 1, characterized in that: one side of air inlet (4) is provided with connector (5), air inlet valve (6) are installed to the preceding terminal surface of air inlet (4), air discharge valve (11) are installed to the preceding terminal surface of gas vent (10), the internally mounted of gas vent (10) has net board (34), and net board (34) are provided with two, install air discharge fan (35) between net board (34), delivery port (38) are installed to the bottom of tail gas processing apparatus (1), install outlet valve (39) on delivery port (38), universal wheel (17) are installed to supporting leg (2) inboard.
3. The general tail gas treatment device of energy-saving and environment-friendly machinery of claim 2, characterized in that: the top of universal wheel (17) is provided with mounting panel (15), and universal wheel (17) passes through the bottom fixed connection of mounting panel (15) and tail gas processing apparatus (1), install buckle (16) on universal wheel (17), the preceding terminal surface of mounting panel (15) is provided with spout (19), install slide button (18) on spout (19), and slide button (18) and spout (19) sliding connection.
4. The general tail gas treatment device of energy-saving and environment-friendly machinery of claim 1, characterized in that: access door (3) are installed to the preceding terminal surface of tail gas processing apparatus (1), and access door (3) are provided with two, door-hinge (12) are installed to one side of access door (3), and access door (3) rotate with the preceding terminal surface of tail gas processing apparatus (1) through door-hinge (12) and be connected, doorknob (13) are installed to the preceding terminal surface of access door (3), the below of doorknob (13) is provided with key hole (14).
5. The general tail gas treatment device of energy-saving and environment-friendly machinery of claim 1, characterized in that: install closing cap (8) on feed inlet (7), fixed knot (9) are installed to the preceding terminal surface of closing cap (8), and fixed knot (9) are provided with two, heat dissipation frame (30) are installed to the rear end face of tail gas processing apparatus (1), and heat dissipation frame (30) are provided with two, the preceding terminal surface of heat dissipation frame (30) is provided with louvre (31), and louvre (31) are provided with a plurality of.
6. The general tail gas treatment device of energy-saving and environment-friendly machinery of claim 1, characterized in that: one side of purifier (20) is provided with heater (23), be provided with mount (24) on heater (23), connecting pipe (22) are installed to the top of heater (23), the inside of purifier (20) is provided with fixed plate (26), install heating ring (25) on fixed plate (26).
7. The general tail gas treatment device of energy-saving and environment-friendly machinery of claim 6, characterized in that: one side of connecting pipe (22) is provided with filter equipment (21), mounting bracket (27) are installed to the rear end face of filter equipment (21), the both sides of mounting bracket (27) all are provided with set screw (28), and mounting bracket (27) pass through set screw (28) and tail gas treatment device (1) inner wall threaded connection.
8. The general tail gas treatment device of energy-saving and environment-friendly machinery of claim 7, characterized in that: install wireless sensor (29) on filter equipment (21), the internally mounted of filter equipment (21) has filter (36), and filter (36) are provided with threely, filter (36) and filter equipment (21) sliding connection, handle (37) are installed to the preceding terminal surface of filter (36).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011325403.5A CN112604499A (en) | 2020-11-24 | 2020-11-24 | General tail gas processing apparatus of energy-concerving and environment-protective machinery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011325403.5A CN112604499A (en) | 2020-11-24 | 2020-11-24 | General tail gas processing apparatus of energy-concerving and environment-protective machinery |
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| CN112604499A true CN112604499A (en) | 2021-04-06 |
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| CN202011325403.5A Pending CN112604499A (en) | 2020-11-24 | 2020-11-24 | General tail gas processing apparatus of energy-concerving and environment-protective machinery |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4300921A (en) * | 1980-03-04 | 1981-11-17 | Rexnord, Inc. | Apparatus and method for removing finely divided solids from gases |
| CN211753802U (en) * | 2019-12-17 | 2020-10-27 | 新疆宜中天环保科技有限公司 | Organic waste gas purification device |
| CN211799700U (en) * | 2019-12-12 | 2020-10-30 | 云和县锐泽玩具设计工作室 | Waste gas innocent treatment device for chemical production |
| CN211936329U (en) * | 2020-02-26 | 2020-11-17 | 陈勇 | Industrial environment-friendly exhaust treatment device |
-
2020
- 2020-11-24 CN CN202011325403.5A patent/CN112604499A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4300921A (en) * | 1980-03-04 | 1981-11-17 | Rexnord, Inc. | Apparatus and method for removing finely divided solids from gases |
| CN211799700U (en) * | 2019-12-12 | 2020-10-30 | 云和县锐泽玩具设计工作室 | Waste gas innocent treatment device for chemical production |
| CN211753802U (en) * | 2019-12-17 | 2020-10-27 | 新疆宜中天环保科技有限公司 | Organic waste gas purification device |
| CN211936329U (en) * | 2020-02-26 | 2020-11-17 | 陈勇 | Industrial environment-friendly exhaust treatment device |
Non-Patent Citations (1)
| Title |
|---|
| 周兴求主编: "《环保设备设计手册—大气污染控制设备》", 29 February 2004, 化学工业出版社 * |
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