CN210699384U - Novel exhaust-gas treatment device - Google Patents
Novel exhaust-gas treatment device Download PDFInfo
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- CN210699384U CN210699384U CN201921644514.5U CN201921644514U CN210699384U CN 210699384 U CN210699384 U CN 210699384U CN 201921644514 U CN201921644514 U CN 201921644514U CN 210699384 U CN210699384 U CN 210699384U
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- gas treatment
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- 239000007921 spray Substances 0.000 claims abstract description 45
- 238000001035 drying Methods 0.000 claims abstract description 11
- 238000002955 isolation Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 239000000919 ceramic Substances 0.000 claims description 65
- 239000007788 liquid Substances 0.000 claims description 55
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 33
- 229910052799 carbon Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 238000005507 spraying Methods 0.000 claims description 14
- 239000002274 desiccant Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 7
- 238000011049 filling Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 239000002912 waste gas Substances 0.000 abstract description 45
- 239000007789 gas Substances 0.000 abstract description 32
- 238000000746 purification Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 9
- 238000001914 filtration Methods 0.000 description 16
- 239000000428 dust Substances 0.000 description 7
- 239000003463 adsorbent Substances 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a novel exhaust-gas treatment device, including the box that has air inlet and gas vent, the air inlet of box is equipped with the filter pulp, the gas vent is equipped with the air exhauster, be equipped with the spray room of following the circulation of gas direction and arranging in proper order in the box, surge chamber and filter layer, the spray room is separated by the isolation layer with the surge room, the spray room is equipped with the drying layer from top to bottom in proper order, shower and filter screen, the shower is equipped with a plurality of shower nozzles, the air inlet is located between shower and the filter screen, the inlet end lateral wall of box is equipped with the inlet, the bottom surface of box is equipped with the leakage fluid dram, waste gas is handled the rethread filter layer through the spray room and is absorbed, clean gas is discharged from the gas vent, the spray room has improved exhaust purification efficiency and exhaust purification effect.
Description
Technical Field
The utility model belongs to the technical field of exhaust-gas treatment, concretely relates to novel exhaust-gas treatment device.
Background
The waste gas purification mainly refers to the treatment of industrial waste gas generated in industrial places, such as dust particles, smoke and dust, peculiar smell gas and toxic and harmful gas. The waste gas components contain a large amount of organic pollutants and other toxic and harmful substances, and if the waste gas components are directly discharged, the waste gas components can pollute the atmosphere and the surrounding environment, so the waste gas components need to be treated and discharged after reaching the national waste gas discharge standard. Waste gas treatment device among the prior art generally adopts multiple filter element direct filtration waste gas, and exhaust purification is inefficient, then discharges after adsorbent adsorbs, along with filtering and absorbent going on, has accumulated the condensation thing of more waste gas in filter element and the adsorbent, leads to the filtration and the adsorption efficiency reduction of waste gas, and exhaust purification effect is poor.
In conclusion, exhaust treatment device has direct filtration waste gas among the prior art, and exhaust purification is inefficient, along with filtering and absorbent going on, has accumulated the condensate of more waste gas in filter element and the adsorbent, leads to the filtration and the absorption efficiency reduction of waste gas, the poor problem of exhaust purification effect.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel exhaust-gas treatment device for solve the direct filtration waste gas that exists among the prior art, exhaust purification is inefficient, along with filtering and absorbent going on, has accumulated the coagulum of more waste gas in filter element and the adsorbent, leads to the filtration and the absorption efficiency reduction of waste gas, the poor problem of exhaust purification effect.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a novel waste gas treatment device, includes the box that has air inlet and gas vent, the air inlet of box is equipped with the filter pulp, and the gas vent is equipped with the air exhauster, is equipped with spray room, buffer chamber and the filter layer of arranging in proper order along the gas flow direction in the box, and spray room and buffer chamber are separated by the isolation layer, and spray room is equipped with drying layer, shower and filter screen from top to bottom in proper order, and the shower is equipped with a plurality of shower nozzles, and the air inlet is located between shower and the filter screen, the inlet end lateral wall of box is equipped with the inlet, and the bottom surface of box is equipped with.
Furthermore, the drying layer comprises a demister and a drying agent, the isolation layer comprises a partition plate and a first metal mesh, the first metal mesh is arranged above the partition plate, the drying agent is filled in a space formed by the first metal mesh, the demister and the inner wall of the box body, and the demister is arranged above the spray pipe.
Furthermore, the filter screen is obliquely arranged and is of a drawer type structure, a second sliding groove which is in sliding fit with the filter screen is formed in the inner wall of the box body, a mounting opening A which is in pull fit with the filter screen is formed in the side wall of the box body, and a cover plate A which is connected with the box body through bolts is arranged at the mounting opening A.
Furthermore, the lateral wall of box inlet end still is equipped with the liquid feed mouth with the shower intercommunication, and the liquid feed mouth sets up between filter screen and inlet, and liquid feed mouth department is equipped with the delivery pump that is used for carrying the spraying liquid.
Furthermore, a liquid level control device for detecting the height of the spraying liquid is further arranged below the filter screen and electrically connected with the controller.
Further, the filter layer includes first ceramic filter and second ceramic filter, is equipped with the active carbon between first ceramic filter and the second ceramic filter.
Furthermore, second metal meshes are respectively arranged between the two sides of the activated carbon and the first ceramic filter plate and between the two sides of the activated carbon and the second ceramic filter plate.
Further, first ceramic filter and second ceramic filter all adopt drawer type structure, and the box inner wall correspondence is equipped with and supplies first ceramic filter and the gliding first spout of second ceramic filter, and installing port B and installing port C that are used for first ceramic filter and second ceramic filter pull are offered to the top of box, are equipped with the filler opening of packing the active carbon between installing port B and the installing port C of first ceramic filter and second ceramic filter, and the bottom of box is corresponding to be equipped with the discharge gate that discharges the active carbon.
Furthermore, the mounting ports B and C of the first ceramic filter plate and the second ceramic filter plate are respectively provided with a cover plate B and a cover plate C which are connected with the box body through bolts, and the filling port and the discharge port are respectively provided with a cover plate D and a cover plate E which are connected with the box body through bolts.
Furthermore, the liquid inlet and the liquid outlet are both provided with valves.
The utility model discloses owing to adopted foretell structure, it compares with prior art, and the technical progress who gains lies in: be equipped with the filter pulp at exhaust treatment device's box air inlet, the gas vent is equipped with the air exhauster, be equipped with spray room, surge chamber and filter layer along the gas flow direction in exhaust treatment device's the box in proper order, spray room and surge chamber are separated by the isolation layer, spray room is equipped with drying layer, shower and filter screen from top to bottom in proper order, the shower is equipped with a plurality of shower nozzles, the air inlet is located between shower and the filter screen, the box inlet end lateral wall is equipped with the inlet, the bottom surface of box is equipped with the leakage fluid dram. The waste gas enters a spray chamber after being coarsely filtered by filter cotton at an air inlet, the waste gas entering the spray chamber is fully contacted with vaporous liquid sprayed by a spray head, most of smoke dust and harmful substances in the waste gas fall to a filter screen along with atomized liquid, the liquid stays on the filter screen in the form of waste gas condensate after being filtered by the filter screen, the liquid flows into the bottom of the spray chamber, the primarily filtered gas is dried by a drying layer, then enters a buffer chamber, and is purified by the filter layer under the action of an exhaust fan at an air outlet and then is discharged; after the waste gas is purified by the spray chamber, most of smoke dust and harmful substances in the waste gas are treated, the waste gas purification efficiency is improved, only a small part of residual clean gas is filtered and absorbed by the filter layer, the pollution degree of a filter element and an adsorbent in the filter layer is reduced, good filtering and adsorption capacity is kept for a longer time, and the waste gas purification effect is improved; to sum up, the utility model has the advantages of exhaust-gas purification is efficient, and the pollution degree of filter element and adsorbent in the filter layer is low, keeps good filtration and adsorption efficiency longer, has improved exhaust-gas purification effect, is applicable to exhaust-gas treatment technical field.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a top view of an embodiment of the present invention.
Labeling components: 1-box body, 2-demister, 3-drying agent, 4-first metal net, 5-first chute, 6-first ceramic filter plate, 7-cover plate B, 8-filling port, 9-active carbon, 10-cover plate C, 11-second ceramic filter plate, 12-exhaust fan, 13-second metal net, 14-discharge port, 15-liquid discharge port, 16-liquid level control device, 17-liquid inlet, 18-delivery pump, 19-second chute, 20-filter screen, 21-cover plate A, 22-filter cotton, 23-spray pipe, 24-spray head and 25-partition plate.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
The embodiment discloses a novel waste gas treatment device, as shown in fig. 1, which comprises a box body 1 with an air inlet and an air outlet, wherein the air inlet of the box body 1 is provided with filter cotton 22, the air outlet is provided with an exhaust fan 12, a spray chamber, a buffer chamber and a filter layer which are sequentially arranged along the gas circulation direction are arranged in the box body 1, the spray chamber and the buffer chamber are separated by an isolation layer, the spray chamber is sequentially provided with a drying layer, a spray pipe 23 and a filter screen 20 from top to bottom, the spray pipe 23 is provided with a plurality of spray heads 24, the air inlet is positioned between the spray pipe 23 and the filter screen 20, the side wall of the air inlet end of the box body 1 is provided with a liquid inlet; the drying layer comprises a demister 2 and a drying agent 3, the isolation layer comprises a partition plate 25 and a first metal mesh 4, the first metal mesh 4 is arranged above the partition plate 25, the drying agent 3 is filled in a space formed by the first metal mesh 4, the demister 2 and the inner wall of the box body 1, and the demister 2 is arranged above the spray pipe 23; the liquid inlet 17 and the liquid outlet 15 are both provided with valves. The beneficial effects of the utility model reside in that: be equipped with filter pulp 22 at exhaust treatment device's box 1 air inlet, the gas vent is equipped with air exhauster 12, be equipped with the shower room along the gas flow direction in exhaust treatment device's box 1 in proper order, surge chamber and filter layer, the shower room is separated by the isolation layer with the surge chamber, the shower room is equipped with the drying layer from top to bottom in proper order, shower 23 and filter screen 20, shower 23 is equipped with a plurality of shower nozzles 24, the air inlet is located between shower 23 and the filter screen 20, box 1 inlet end lateral wall is equipped with inlet 17, the bottom surface of box 1 is equipped with leakage fluid dram 15. The waste gas enters the spray chamber after being coarsely filtered by the filter cotton 22 at the air inlet, the waste gas entering the spray chamber is fully contacted with the vaporific liquid sprayed by the spray head 24, so that most of smoke dust and harmful substances in the waste gas fall to the filter screen 20 along with the atomized liquid, the waste gas is filtered by the filter screen 20 and stays on the filter screen 20 in the form of waste gas condensate, the liquid flows into the bottom of the spray chamber, the primarily filtered gas is subjected to mist removal by the demister 2, is dried by the drying agent 3 and then enters the buffer chamber, and is purified by the filter layer under the action of the exhaust fan 12 at the air outlet and then is discharged; after the waste gas is subjected to purification treatment in the spray chamber, most of smoke and dust and harmful substances in the waste gas are treated, the waste gas purification efficiency is improved, only a small part of residual clean gas is filtered and absorbed by the filter layer, the pollution degree of the first ceramic filter plate, the second ceramic filter plate and the active carbon of the filter layer is reduced, the filter layer can keep good filtering and adsorption capacity for a longer time, and the waste gas purification effect is improved.
As a preferred embodiment of the present invention, as shown in fig. 1, the filter screen 20 is obliquely arranged and has a drawer-type structure, the inner wall of the box 1 is provided with a second chute 19 for slidably fitting with the filter screen 20, the side wall of the box 1 is provided with an installation opening a for drawing and fitting with the filter screen 20, and the installation opening a is provided with a cover plate a21 bolted to the box 1; the side wall of the air inlet end of the box body 1 is also provided with a liquid supply port communicated with the spray pipe 23, the liquid supply port is arranged between the filter screen 20 and the liquid inlet 17, and the liquid supply port is provided with a delivery pump 18 for delivering spray liquid; a liquid level control device 16 for detecting the height of the spraying liquid is also arranged below the filter screen 20, and the liquid level control device 16 is electrically connected with the controller. The filter screen 20 is obliquely arranged, so that the spraying liquid can flow downwards, and the spraying liquid can pass through the filter screen 2 more smoothly; the drawer type structure has the advantages that when the filter screen 20 is cleaned, only the cover plate A21 at the mounting opening A needs to be opened, the filter screen 20 is pulled to slide out along the second sliding groove 19, the filter screen 20 is cleaned, and then the filter screen 20 is mounted, so that the operation is convenient; the liquid supply port is provided with a delivery pump 18 communicated with a spray pipe 23, so that the circulating use of spray liquid is realized; when the spraying liquid level height below the spraying chamber is reduced and the spraying liquid needs to be supplemented, the liquid level control device 16 feeds back a signal to the control system, the control system sends a signal for supplementing the spraying liquid, the spraying liquid is supplemented into the spraying chamber through the liquid inlet 17, the spraying liquid level height keeps dynamic balance, the liquid level control device 16 can adopt a floating ball type liquid level switch, and also can adopt a pressure type water level switch or other liquid level control devices 16, specifically, the floating ball type liquid level switch with wide application is adopted in the embodiment.
As a preferred embodiment of the present invention, as shown in fig. 1 and 2, the filter layer includes a first ceramic filter plate 6 and a second ceramic filter plate 11, and activated carbon 9 is disposed between the first ceramic filter plate 6 and the second ceramic filter plate 11; second metal nets 13 are respectively arranged between two sides of the activated carbon 9 and the first ceramic filter plate 6 and the second ceramic filter plate 11, and the activated carbon 9 is filled in a space formed by the second metal nets 13 and the side wall of the box body 1 to form an adsorption layer; the first ceramic filter plate 6 and the second ceramic filter plate 11 both adopt drawer type structures, the inner wall of the box body 1 is correspondingly provided with a first chute 5 for sliding the first ceramic filter plate 6 and the second ceramic filter plate 11, the top of the box body 1 is provided with a mounting port B and a mounting port C for drawing the first ceramic filter plate 6 and the second ceramic plate, a filling port 8 for filling active carbon 9 is arranged between the mounting port B and the mounting port C of the first ceramic filter plate 6 and the second ceramic filter plate 11, and the bottom of the box body 1 is correspondingly provided with a discharge port 14 for discharging the active carbon 9; the mounting ports B and C of the first ceramic filter plate 6 and the second ceramic filter plate 11 are respectively provided with a cover plate B7 and a cover plate C10 which are connected with the box body 1 through bolts, and the filling port 8 and the discharge port 14 are respectively provided with a cover plate D and a cover plate E which are connected with the box body 1 through bolts. The ceramic filter plate is adopted for filtering, and based on the capillary micropore structure of the ceramic filter plate, the gas filtering device has a good filtering effect, is convenient to clean and can be repeatedly used; the first ceramic filter plate 6 and the second ceramic filter plate 11 are of drawer type structures, so that the ceramic filter plates can be conveniently disassembled and assembled during cleaning, the cover plate B7 and the cover plate C10 are opened during cleaning, then the first ceramic filter plate 6 and the second ceramic filter plate are respectively pulled out from the mounting port B and the mounting port C along the corresponding first sliding grooves 5 for cleaning, and after the ceramic filter plates are cleaned, the ceramic filter plates can be installed, so that the operation is convenient; when changing active carbon 9, open the apron D of exhaust treatment device's box 1 top, then open the apron E of box 1 below, the active carbon 9 that will treat to change is discharged the back from discharge gate 14, installs apron E, again with new active carbon 9 from the filler opening 8 put into can, for the discharge of active carbon 9, the inside position department bottom that holds active carbon 9 of box 1 is the toper structure.
The working principle of the utility model is as follows:
waste gas to be treated firstly enters a spray chamber after being coarsely filtered by filter cotton 22 at an air inlet of a waste gas treatment device, the waste gas entering the spray chamber is fully contacted with vaporific liquid sprayed by a spray head 24, most of smoke dust and harmful substances in the waste gas fall to a filter screen 20 along with the atomized liquid, the waste gas filtered by the filter screen 20 stays on the filter screen 20 in the form of waste gas condensate, the liquid flows into the bottom of the spray chamber, the primarily filtered gas is dried by a drying layer and then enters a buffer chamber, only a small part of residual clean gas is filtered by a first ceramic filter plate 6 under the action of an exhaust fan 12, then the residual clean gas is adsorbed by activated carbon 9 and is discharged after passing through a second ceramic filter plate 11 again. Waste gas is sprayed and treated by the spray chamber, so that the waste gas purification efficiency is improved, the pollution degree of the first ceramic filter plate 6, the second ceramic filter plate 11 and the active carbon 9 of the filter layer is reduced, good filtering and adsorbing capabilities are kept for a longer time, and the waste gas purification effect is improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the protection of the claims of the present invention.
Claims (10)
1. The utility model provides a novel exhaust-gas treatment device, includes the box that has air inlet and gas vent, its characterized in that: the air inlet of box is equipped with the filter pulp, and the gas vent is equipped with the air exhauster, is equipped with spray room, surge chamber and the filter layer of following the gas flow direction and arranging in proper order in the box, and spray room and surge chamber are separated by the isolation layer, and spray room from top to bottom is equipped with drying layer, shower and filter screen in proper order, and the shower is equipped with a plurality of shower nozzles, and the air inlet is located between shower and the filter screen, the inlet end lateral wall of box is equipped with the inlet, and the bottom surface of box is equipped with the leakage fluid dram.
2. The novel exhaust gas treatment device according to claim 1, wherein: the drying layer comprises a demister and a drying agent, the isolation layer comprises a partition plate and a first metal mesh, the first metal mesh is arranged above the partition plate, the drying agent is filled in a space formed by the first metal mesh, the demister and the inner wall of the box body, and the demister is arranged above the spray pipe.
3. The novel exhaust gas treatment device according to claim 1, wherein: the filter screen sets up and is drawer type structure in the slope, and the box inner wall is equipped with and is used for with filter screen sliding fit's second spout, the box lateral wall be equipped with be used for with filter screen pull complex installing port A, installing port A department be equipped with box bolted connection's apron A.
4. The novel exhaust gas treatment device according to claim 1, wherein: the lateral wall of box inlet end still is equipped with the liquid feed mouth with the shower intercommunication, and the liquid feed mouth sets up between filter screen and inlet, and liquid feed mouth department is equipped with the delivery pump that is used for carrying spraying liquid.
5. The novel exhaust gas treatment device according to claim 1, wherein: and a liquid level control device for detecting the height of the spraying liquid is also arranged below the filter screen and is electrically connected with the controller.
6. The novel exhaust gas treatment device according to claim 1, wherein: the filter layer comprises a first ceramic filter plate and a second ceramic filter plate, and activated carbon is arranged between the first ceramic filter plate and the second ceramic filter plate.
7. The novel exhaust gas treatment device according to claim 6, wherein: and second metal nets are respectively arranged between the two sides of the activated carbon and the first ceramic filter plate and between the two sides of the activated carbon and the second ceramic filter plate.
8. The novel exhaust gas treatment device according to claim 6, wherein: first ceramic filter and second ceramic filter all adopt drawer type structure, and the box inner wall correspondence is equipped with and supplies the gliding first spout of first ceramic filter and second ceramic filter, and installing port B and installing port C that are used for first ceramic filter and second ceramic filter pull are offered at the top of box, are equipped with the filler opening of packing the active carbon between installing port B and the installing port C of first ceramic filter and second ceramic filter, and the bottom of box is corresponding to be equipped with the discharge gate of emission active carbon.
9. The novel exhaust gas treatment device according to claim 8, wherein: the mounting port B and the mounting port C of the first ceramic filter plate and the second ceramic filter plate are respectively provided with a cover plate B and a cover plate C which are connected with the box body through bolts, and the filling port and the discharge port are respectively provided with a cover plate D and a cover plate E which are connected with the box body through bolts.
10. The novel exhaust gas treatment device according to claim 1, wherein: and the liquid inlet and the liquid outlet are respectively provided with a valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921644514.5U CN210699384U (en) | 2019-09-29 | 2019-09-29 | Novel exhaust-gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921644514.5U CN210699384U (en) | 2019-09-29 | 2019-09-29 | Novel exhaust-gas treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN210699384U true CN210699384U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921644514.5U Expired - Fee Related CN210699384U (en) | 2019-09-29 | 2019-09-29 | Novel exhaust-gas treatment device |
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| Country | Link |
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| CN (1) | CN210699384U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111991937A (en) * | 2020-09-10 | 2020-11-27 | 南京航空航天大学 | Air purification device based on online virus killing of multilevel filtration |
| CN117547936A (en) * | 2024-01-12 | 2024-02-13 | 泊头市环森环保设备有限公司 | Waste gas treatment device and treatment method |
-
2019
- 2019-09-29 CN CN201921644514.5U patent/CN210699384U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111991937A (en) * | 2020-09-10 | 2020-11-27 | 南京航空航天大学 | Air purification device based on online virus killing of multilevel filtration |
| CN117547936A (en) * | 2024-01-12 | 2024-02-13 | 泊头市环森环保设备有限公司 | Waste gas treatment device and treatment method |
| CN117547936B (en) * | 2024-01-12 | 2024-03-15 | 泊头市环森环保设备有限公司 | Waste gas treatment device and treatment method |
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Granted publication date: 20200609 |