CN105833645B - Waste gas treatment equipment and method - Google Patents
Waste gas treatment equipment and method Download PDFInfo
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- CN105833645B CN105833645B CN201610292253.XA CN201610292253A CN105833645B CN 105833645 B CN105833645 B CN 105833645B CN 201610292253 A CN201610292253 A CN 201610292253A CN 105833645 B CN105833645 B CN 105833645B
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- 239000002912 waste gas Substances 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000007789 gas Substances 0.000 claims abstract description 55
- 239000002245 particle Substances 0.000 claims abstract description 39
- 239000007921 spray Substances 0.000 claims abstract description 34
- 238000001179 sorption measurement Methods 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 19
- 239000000428 dust Substances 0.000 claims description 10
- 230000003647 oxidation Effects 0.000 claims description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 5
- 239000012855 volatile organic compound Substances 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002894 chemical waste Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910021392 nanocarbon Inorganic materials 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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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
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- 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
- B01D53/75—Multi-step processes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a waste gas treatment device and a waste gas treatment method, wherein the waste gas treatment device comprises: the waste gas collecting device, the particle collecting device, the circulating water spraying device and the activated carbon adsorption device are connected in sequence; the waste gas collecting device comprises a circulating water tank, a spray water pump and a centrifugal fan, wherein a water inlet of the spray water pump is connected with the circulating water tank; the lower end of the circulating water spraying device is provided with an air inlet, and the upper end of the circulating water spraying device is provided with a circulating water inlet; the circulating water inlet is connected with the water outlet of the spray water pump. The waste gas treatment equipment can comprehensively treat waste gas, the treated waste gas can meet the gas emission requirement, and the pollution of waste gas emission to the atmospheric environment can be avoided; the waste gas treatment equipment adopts an integrated design, has the characteristics of small occupied space, convenient operation, small equipment investment and high purification efficiency, can realize the coordinated treatment of various treatment modes, and meets the purification treatment requirements of various waste gases.
Description
Technical Field
The invention belongs to the field of waste gas treatment, and particularly relates to waste gas treatment equipment and a waste gas treatment method.
Background
Along with the development of society, more and more severe environmental protection problems are brought, atmospheric pollution is aggravated by waste gas of chemical production, tail gas of combustion of gasoline, diesel oil and the like and oil smoke and the like generated by catering, the chemical waste gas, the combustion tail gas of the gasoline and the diesel oil and the oil smoke have complex components, and great troubles are brought to purification treatment. The existing purification treatment equipment has a single treatment mode, and the exhausted gas is difficult to meet the environmental protection requirement; adopt the comprehensive processing mode, multiple purification treatment equipment installation is complicated and occupation space is great to multiple purification treatment equipment coordination handles the difficulty, is difficult to satisfy the purification treatment demand of gas such as present waste gas, tail gas and oil smoke.
Disclosure of Invention
The invention mainly aims to provide waste gas treatment equipment and a waste gas treatment method, which can realize comprehensive purification treatment of various waste gases and meet the emission requirement of gases, and adopts the following technical scheme:
an exhaust gas treatment device comprising: the waste gas collecting device, the particle collecting device, the circulating water spraying device and the activated carbon adsorption device are connected in sequence; the waste gas collecting device comprises a circulating water tank, a spray water pump and a centrifugal fan connected with a waste gas discharge pipeline, wherein a water inlet of the spray water pump is connected with the circulating water tank; the lower end of the circulating water spraying device is provided with an air inlet, and the upper end of the circulating water spraying device is provided with a circulating water inlet; the circulating water inlet is connected with the water outlet of the spray water pump.
Further, still include intelligent control device, waste gas collection device particle entrapment device circulating water spray set with active carbon adsorption device with intelligent control device electric connection.
Further, still include the base, waste gas collection device, the granule entrapment device, circulating water spray set, active carbon adsorption device with intelligent control device all install in on the base.
Further, the waste gas collecting device still includes waste gas and collects cover and waste gas collection pipeline, waste gas is collected the cover and is connected with the waste gas discharge port, waste gas collect the cover with centrifugal fan's induction port is connected, waste gas collection pipeline connects respectively centrifugal fan's gas vent with particle trapping device.
Further, the circulation water tank is provided with a water discharge port for discharging the circulation water out of the circulation water tank.
Further, the particulate trap device includes a particulate trap, an oxidation catalyst, and an electronic controller; the oxidation type catalyst is arranged inside the particle catcher.
Further, the particle catcher is a ceramic wall-flow particle catcher.
Further, the circulating water spraying device comprises a cylinder body, and the bottom of the cylinder body is conical; the circulating water inlet is provided with a plurality of nozzles tangentially arranged with the inner wall of the cylinder body, and the nozzles are distributed at the upper part of the cylinder body; the air inlet is arranged at the lower part of the cylinder body and arranged tangentially to the inner wall of the cylinder body.
Furthermore, granular activated carbon, activated carbon fiber and/or honeycomb activated carbon are arranged in the activated carbon adsorption device.
An exhaust gas treatment method comprising the steps of:
1) collecting waste gas: the waste gas enters a waste gas collecting device due to the negative pressure generated by the centrifugal fan;
2) particle trapping: carrying out reduction treatment on the waste gas, and then carrying out particle capture on the waste gas after the reduction treatment;
3) spraying and purifying: adsorbing dust particles in the gas discharged in the step 2) by using a water film formed by circulating water, wherein the circulating water is obtained from a circulating water tank by a spray water pump;
4) activated carbon adsorption: adsorbing volatile organic compounds in the gas discharged in the step 3) by using activated carbon, and then discharging the treated gas through a discharge chimney;
wherein, centrifugal fan with spray water pump linkage.
The waste gas treatment equipment can comprehensively treat waste gas, the treated waste gas can meet the gas emission requirement, and the pollution of waste gas emission to the atmospheric environment can be avoided; the waste gas treatment equipment adopts an integrated design, has the characteristics of small occupied space, convenient operation, small equipment investment and high purification efficiency, can realize the coordinated treatment of various treatment modes, and meets the purification treatment requirements of various waste gases.
Drawings
FIG. 1 is a schematic top view of an exhaust gas treating apparatus according to embodiment 1 of the present invention;
fig. 2 is a block schematic diagram of the embodiment shown in fig. 1.
In the figure: 11 is a centrifugal fan; 12 is a circulating water tank; 13 is a spray water pump; 14 is an exhaust gas collecting cover; 5 is a waste gas collecting pipeline; 20 is a particle trapping device; 21 is a particle catcher; 22 is an oxidation type catalyst; 23 is an electronic controller; 30 is a circulating water spraying device; 31 is a connecting pipe; 32 is a cylinder body; 40 is an active carbon adsorption device; 50 is an intelligent control device; 60 is a base; 70 is a blower; and 80 is a sewer.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and 2, the schematic diagram of an embodiment 1 of the exhaust gas treatment apparatus of the present invention includes an exhaust gas collection device (not shown), a particle collection device 20, a circulating water spray device 30, an activated carbon adsorption device 40, an intelligent control device 50, and a base 60, where the exhaust gas collection device, the particle collection device 20, the circulating water spray device 30, the activated carbon adsorption device 40, and the intelligent control device 50 are installed on the base 60, the exhaust gas collection device, the particle collection device 20, the circulating water spray device 30, and the activated carbon adsorption device 40 are connected in sequence, and the exhaust gas collection device, the particle collection device 20, the circulating water spray device 30, and the activated carbon adsorption device 40 are all electrically connected to the intelligent control device 50.
The exhaust gas collecting device includes: centrifugal fan 11, circulating water tank 12, spray water pump 13, waste gas collection cover 14 and waste gas collection pipeline 15. Wherein, centrifugal fan 11 sets up between cover 14 and the waste gas collecting pipe 15 are collected to the waste gas, and centrifugal fan 11 sucks, makes waste gas collecting cover 14, waste gas collecting pipe 15 and granule entrapment device 20, circulating water spray set 30 and active carbon adsorption device 40 in form the negative pressure, makes waste gas can pass through. Circulating water is filled in the circulating water tank 12, and in order to remove organic pollutants and Ringelmann blackness in the waste gas, a medicament sodium hydroxide is added into the circulating water tank 12 to make the circulating water alkaline. The inlet of the spray water pump 13 is connected to the circulation water tank 12, and circulating water can be pumped from the circulation water tank. The exhaust gas collecting hood 14 is connected to an exhaust gas discharge port, and the exhaust gas collecting duct 15 connects the exhaust gas collecting hood 14 and the particulate trap device 20.
The particle trap device 20 includes a particle trap 21, an oxidation catalyst 22, and an electronic controller 23, wherein the oxidation catalyst 22 is disposed in the particle trap 21, and the oxidation catalyst 22 is electrically connected to the electronic controller 23. The particulate trap 21 may be a ceramic wall-flow particulate trap, carbon monoxide, hydrocarbons and the like in the exhaust gas are reduced into ultra-fine nano soot particulates, and the particulate trap 21 traps the ultra-fine nano soot particulates in the particulate trap 21. The electronic controller 23 detects the pressure value in the particle catcher 21 in real time, when the pressure value reaches the regeneration set value, the electronic controller 23 controls the oxidation type catalytic converter 22 to increase the temperature in the particle catcher 21, and the ultrafine nano carbon smoke particles are oxidized into carbon dioxide and water to be discharged, so that the particle catcher 21 is automatically cleaned.
The circulating water spraying device 30 comprises a cylinder 32, the bottom of the cylinder 32 is conical, and a circulating water inlet (not shown) is provided with a plurality of nozzles tangentially arranged with the inner wall of the cylinder 32 and arranged at the upper part of the cylinder 32. The lower end of the circulating water spraying device 30 is provided with an air inlet (not shown in the figure), and the air inlet is arranged at the lower part of the cylinder 32 and is tangential to the inner wall of the cylinder.
The inlet of the circulating water is connected with the outlet of the spray water pump 13, and the circulating water is obtained from the circulating water tank 12; the circulating water enters the cylinder 32 through the nozzle, and because the nozzle is arranged tangentially to the inner wall of the cylinder 32, the circulating water is sprayed onto the inner wall of the cylinder 32 tangentially and flows downwards in a rotating direction on the inner wall of the cylinder 32, so that a thin water film which covers the inner wall of the cylinder 32 and flows downwards in a rotating direction is formed. The dust-containing gas enters the cylinder 32 through the air inlet, is introduced into the inner wall of the cylinder 32 in a tangential direction, rotates and rises, dust particles are thrown to the inner wall of the cylinder 32 under the action of centrifugal force, are adsorbed by a water film layer flowing on the inner wall of the cylinder 32, and are discharged from the bottom of the cylinder 32 along with water flow, so that a good dust removal effect is achieved. The dust-containing water discharged from the bottom of the cylinder 32 flows back to the circulation water tank 12, and when the dust content in the circulation water reaches a certain concentration, the dust-containing water is directly discharged to the sewer 80.
The activated carbon adsorption device 40 is connected to the circulating water spray device 30 through a connection pipe 31, and receives the exhaust gas treated by the circulating water spray device 30. The activated carbon adsorption device 40 is internally provided with granular activated carbon, activated carbon fiber and/or honeycomb activated carbon, and the granular activated carbon, the activated carbon fiber and/or the honeycomb activated carbon all have porous structures and can adsorb volatile organic compounds in gas. The gas treated by the activated carbon adsorption device 40 enters an exhaust stack (not shown in the figure) and is discharged through the exhaust stack.
The intelligent control device 50 has the functions of liquid crystal display, intelligent remote control, remote signaling and remote measuring, and can realize remote starting. The intelligent control device 50 is electrically connected with the waste gas collecting device, the particle trapping device 20, the circulating water spraying device 30 and the active carbon adsorption device 40, can display gas online analysis, PH control, differential pressure transmission, pressure sensing, flow sensing, conductivity, liquid level control, an electromagnetic valve, fault alarm and the like, and realizes monitoring and control of the waste gas collecting device, the particle trapping device 20, the circulating water spraying device 30 and the active carbon adsorption device 40.
In order to improve the exhaust gas treatment efficiency, a blower 70 is provided at the exhaust port of the activated carbon adsorption device 40 to further increase the negative pressure in the exhaust gas collection device, the particle trap device 20, the circulating water spray device 30, the activated carbon adsorption device 40, and the piping.
When the device is implemented, the waste gas collecting pipeline, the connecting pipe and the like are made of PVC materials, and the pipe diameters are selected according to requirements; the centrifugal fan adopts a low-noise frequency conversion centrifugal fan. In order to save space, the circulating water tank, the spray water pump and the circulating water spray device are integrally designed, and dust-containing water discharged from the bottom of the cylinder directly flows back into the circulating water tank.
The invention also provides a waste gas treatment method, which specifically comprises the following steps of 1) waste gas collection: the waste gas enters a waste gas collecting device due to the negative pressure generated by the centrifugal fan; 2) particle trapping: carrying out reduction treatment on the waste gas, and then carrying out particle capture on the waste gas after the reduction treatment; 3) spraying and purifying: adsorbing dust particles in the gas discharged in the step 2) by using a water film formed by circulating water, wherein the circulating water is obtained from a circulating water tank by a spray water pump; 4) activated carbon adsorption: adsorbing volatile organic compounds in the gas discharged in the step 3) by using activated carbon, and then discharging the treated gas through a discharge chimney.
When the centrifugal fan is started, the spray water pump is started, and when the centrifugal fan is closed, the spray water pump is closed.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. An exhaust gas treatment device, comprising: the waste gas collecting device, the particle collecting device, the circulating water spraying device and the activated carbon adsorption device are connected in sequence; the waste gas collecting device comprises a circulating water tank, a spray water pump and a centrifugal fan, wherein a water inlet of the spray water pump is connected with the circulating water tank; the lower end of the circulating water spraying device is provided with an air inlet, and the upper end of the circulating water spraying device is provided with a circulating water inlet; the circulating water inlet is connected with the water outlet of the spray water pump;
the particle trapping device comprises a particle trap, an oxidation type catalyst and an electronic controller; the oxidation type catalyst is arranged inside the particle catcher;
the circulating water spraying device comprises a cylinder and a motor, and the bottom of the cylinder is conical; the circulating water inlet is provided with a plurality of nozzles tangentially arranged with the inner wall of the cylinder body, and the nozzles are distributed at the upper part of the cylinder body; the air inlet is arranged at the lower part of the cylinder body and arranged tangentially to the inner wall of the cylinder body.
2. The exhaust gas treatment apparatus according to claim 1, further comprising an intelligent control device, wherein the exhaust gas collection device, the particle trapping device, the circulating water spray device, and the activated carbon adsorption device are electrically connected to the intelligent control device.
3. The exhaust gas treatment apparatus according to claim 2, further comprising a base on which the exhaust gas collection device, the particulate collection device, the circulating water spray device, the activated carbon adsorption device, and the intelligent control device are mounted.
4. The exhaust gas treatment apparatus according to claim 1 or 2, wherein the exhaust gas collecting device further includes an exhaust gas collecting hood connected to the exhaust gas discharge port and an exhaust gas collecting duct connected to the suction port of the centrifugal fan, the exhaust gas collecting duct being connected to the exhaust port of the centrifugal fan and the particle trap device, respectively.
5. The exhaust gas treatment apparatus according to claim 1 or 2, wherein the circulation tank is provided with a drain port for discharging the circulation water out of the circulation tank.
6. The exhaust treatment device of claim 1, wherein the particulate trap is a ceramic wall-flow particulate trap.
7. The exhaust gas treatment apparatus according to claim 1 or 2, wherein the activated carbon adsorption device is provided with granular activated carbon, activated carbon fiber and/or honeycomb activated carbon therein.
8. An exhaust gas treatment method, characterized by comprising the steps of:
1) collecting waste gas: the waste gas enters a waste gas collecting device due to the negative pressure generated by the centrifugal fan;
2) particle trapping: carrying out reduction treatment on the waste gas, and then carrying out particle capture on the waste gas after the reduction treatment;
3) spraying and purifying: adsorbing dust particles in the gas discharged in the step 2) by using a water film formed by circulating water, wherein the circulating water is obtained from a circulating water tank by a spray water pump;
4) activated carbon adsorption: adsorbing volatile organic compounds in the gas discharged in the step 3) by using activated carbon, and then discharging the treated gas through discharged smoke;
wherein, centrifugal fan with spray water pump linkage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610292253.XA CN105833645B (en) | 2016-05-05 | 2016-05-05 | Waste gas treatment equipment and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610292253.XA CN105833645B (en) | 2016-05-05 | 2016-05-05 | Waste gas treatment equipment and method |
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| CN105833645A CN105833645A (en) | 2016-08-10 |
| CN105833645B true CN105833645B (en) | 2022-07-29 |
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| CN109157965A (en) * | 2018-09-25 | 2019-01-08 | 深圳市高德威技术有限公司 | The fume purifier of fume of scavenging solution concentration real time monitoring adjustment |
| CN109395519B (en) * | 2018-11-28 | 2023-05-23 | 兰州大学 | Vehicle-mounted movable urban air purifying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4222786B2 (en) * | 2001-12-28 | 2009-02-12 | 株式会社オメガ | Deodorizing / purifying method and apparatus for exhaust or smoke |
| CN101307705B (en) * | 2008-02-04 | 2010-09-15 | 北京英泰世纪环境科技有限公司 | Hierarchical type granule capturing device and its regeneration method |
| CN201807272U (en) * | 2010-10-13 | 2011-04-27 | 苗祝威 | Waste gas collecting and purifying processor |
| CN102743968A (en) * | 2012-06-22 | 2012-10-24 | 徐旭 | Waste gas integrated treatment device |
| CN102979599A (en) * | 2012-11-27 | 2013-03-20 | 上海理工大学 | Mechanical high-temperature electrostatic diesel exhaust particle purifier |
| CN103670605B (en) * | 2013-11-14 | 2016-06-08 | 潍柴动力股份有限公司 | A kind of diesel engine and particulate matter trap regenerating unit thereof |
| CN204219998U (en) * | 2014-10-16 | 2015-03-25 | 常州宝新防腐材料有限公司 | A kind of off-gas cleaning equipment |
| CN205109281U (en) * | 2015-09-17 | 2016-03-30 | 广东三合环保通风设备有限公司 | Waste gas treatment device |
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