CN108744927A - A kind of environment-friendly type industrial waste-gas purifier - Google Patents
A kind of environment-friendly type industrial waste-gas purifier Download PDFInfo
- Publication number
- CN108744927A CN108744927A CN201810577937.3A CN201810577937A CN108744927A CN 108744927 A CN108744927 A CN 108744927A CN 201810577937 A CN201810577937 A CN 201810577937A CN 108744927 A CN108744927 A CN 108744927A
- Authority
- CN
- China
- Prior art keywords
- scrubber tower
- pipe
- gas
- mounting plate
- filtering tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Abstract
The invention discloses a kind of environment-friendly type industrial waste-gas purifiers, including mounting plate, the four corners of the mounting plate bottom are all provided with chassis, one end at the top of the mounting plate is equipped with two rows of mounting brackets, and assembling pipe is installed at the top of mounting bracket, one end of the assembling pipe is equipped with downtake pipe, and the other end of assembling pipe is equipped with three-way pipe, the inside of the assembling pipe is equipped with two groups of wind turbines, middle position above the mounting plate is equipped with filtering tank, and the one end of downtake pipe far from assembling pipe is connected to filtering tank, the middle position of both sides is all equipped with sliding slot inside the filtering tank.The present invention uses the processing method of gas washing formula, it can be effective cost-effective, purification efficiency and effect of the device to air can be improved again, it is cooperated by acid scrubber tower and alkaline scrubber tower, so as to be cleaned to inside air heterogeneity gas, the clean-up effect of device is further increased.
Description
Technical field
The present invention relates to air cleaning and environment-friendly technical field, specially a kind of environment-friendly type industrial waste-gas purifier.
Background technology
With the quickening of modern industrialization process, environmental problem is also on the rise caused by industrial production, especially work
Exhaust gas caused by industry production, causes serious pollution, general industry exhaust-gas treatment includes organic exhaust gas to air environment
Processing, dust exhaust-gas treatment, soda acid exhaust-gas treatment, peculiar smell exhaust-gas treatment and air sterilizing purification etc., industrial waste gas
Processing gas specifically include acetone, butanone, butanol, methanol, formaldehyde, benzene,toluene,xylene, styrene, methyl tertiary butyl ether(MTBE),
Ethyl acetate, ethane, is defended alkane, natural gas, vehicle exhaust, hydrogen sulfide, hydrogen sulfide, mercaptan, ammonia and various is had methine chlorine
Machine exhaust gas, soda acid exhaust gas.
Current waste gas purification apparatus generally by plasma technology or by way of layering to exhaust gas
It is handled, the cost input by plasma technology is higher, and common simple by way of filtering and adsorbing
Reason, effect is poor, and generally only one group of the air inlet of current purifier, causes to be inhaled from an orientation
Gas, the discharge of gas piece is uneven, and the flexibility used is poor, and less efficient.
Invention content
The purpose of the present invention is to provide a kind of environment-friendly type industrial waste-gas purifiers, to solve to carry in above-mentioned background technology
The relevant issues gone out.
To achieve the above object, the present invention provides the following technical solutions：A kind of environment-friendly type industrial waste-gas purifier, including
The four corners of mounting plate, the mounting plate bottom are all provided with chassis, and one end at the top of the mounting plate is equipped with two rows of installations
Frame, and assembling pipe is installed at the top of mounting bracket, one end of the assembling pipe is equipped with downtake pipe, and wind turbine
The other end of installing pipe is equipped with three-way pipe, and the inside of the assembling pipe is equipped with two groups of wind turbines, the mounting plate top
Middle position filtering tank is installed, and the one end of downtake pipe far from assembling pipe is connected to filtering tank, the mistake
The middle position of both sides is all equipped with sliding slot inside filter tank, and rectangular frame is equipped on the inside of sliding slot, the rectangular frame
Inside filter screen is installed, the both sides far from mounting bracket one end are separately installed with alkaline scrubber tower and acid above the mounting plate
Property scrubber tower, and condenser pipe, and the top of condenser pipe and acid are installed at one jiao of acid scrubber tower at the top of filtering tank
Property scrubber tower top connection, second exhaust pipe, and second have been installed at the top of the acidity scrubber tower and alkaline scrubber tower
Exhaust pipe is connected to alkaline scrubber tower and acid scrubber tower respectively, and the top inside the acidity scrubber tower is equipped with the second air guide
Pipe, and the top of the second gas-guide tube is connected to the output end of condenser pipe, the top inside the acidity scrubber tower passes through motor branch
Frame is equipped with the second motor, and the output end of the second motor is equipped with the second rotating bar, on the side wall of second rotating bar
Even to be equipped with one and arrange the 2nd paddle, the top inside the alkalinity scrubber tower is equipped with the first gas-guide tube, and the first gas-guide tube
Top be connected to second exhaust pipe, it is described alkalinity scrubber tower inside top first motor is equipped with by electric machine support, and
The output end of first motor is equipped with the first rotating bar, and the side wall of first rotating bar is uniformly equipped with one and arranges the first stirring
Bar is equipped with gas outlet at the top of the alkalinity scrubber tower, close to the interposition of alkaline scrubber tower side at the top of the mounting plate
The place of setting is equipped with control panel, and the control panel is electrically connected with wind turbine, first motor and the second motor respectively by conducting wire.
Preferably, the both sides of the three-way pipe are all provided with exhaust duct, and one end peace of the exhaust duct far from assembling pipe
Equipped with hood, the outside of the hood is all provided with annular mounting plate, and fixed spiral shell is evenly arranged on annular mounting plate
Bolt；
Preferably, the middle position of the filtering tank inner bottom is equipped with the second gasket, and at the top of filtering tank
Middle position is equipped with filtering tank lid, and the both ends at the top of the filtering tank lid are all equipped with handle, and filtering tank lid
Bottom the first gasket is installed；
Preferably, the condenser pipe is in the shape of a spiral；
Preferably, the angle of inclination of first stirring rod and the second paddle is all 30 °；
Preferably, the top of the alkaline scrubber tower filling opening and acid scrubber tower filling opening is all equipped with sealing cover；
Preferably, the bottom of the alkaline gas washing pot sidewall is equipped with alkaline scrubber tower leakage fluid dram, the acidity scrubber tower
The bottom of side wall is equipped with acid scrubber tower leakage fluid dram.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) the environment-friendly type industrial waste-gas purifier uses the processing method of gas washing formula, you can with effective cost-effective,
Purification efficiency and effect of the device to air can be improved again, cooperated by acid scrubber tower and alkaline scrubber tower, to
Inside air heterogeneity gas can be cleaned, further increase the clean-up effect of device.
(2) inside of the alkaline scrubber tower of the environment-friendly type industrial waste-gas purifier and acid air-breathing tank is all provided with stirring
Structure can be stirred when gas passes through scrubber tower, be conducive to reacting for harmful substance in gas and gas washing liquid,
To effectively improve the clean-up effect of scrubber tower, and the efficiency of its purification can be improved.
(3) the environment-friendly type industrial waste-gas purifier is filtered by multigroup filter screen, can improve the filtering of device
Effect, while filter screen is installed by sliding slot, is carried out and is dismantled to filter screen so as to be convenient for, consequently facilitating to filtering
Net is cleaned and is replaced, and to effectively improve the practicability and durability of device, and coordinates the condensation pipe of screw type, can
With by gas cooling, so that falling into the inside of filtering cabin after a part of particle cooling, auxiliary plays certain filtration,
Improve its filter effect.
The environment-friendly type industrial waste-gas purifier is provided with two groups of carry out gas hoods, and airscoop shroud can be fixed on to different positions
It sets so that device can be from different location air inlet so that the pumping effect of device is more preferable, coordinates the pattern of two fans, can be with
The further intake efficiency for improving device, while airscoop shroud can be fixed by the fixing bolt on annular mounting plate,
So that the fixation enhanced convenience of fixed cover, use are more flexible.
Description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is the vertical view of the present invention；
Fig. 3 is the side view of the present invention；
Fig. 4 is the scrubber tower schematic internal view of the present invention；
Fig. 5 is the filtering cabin schematic internal view of the present invention；
Fig. 6 is the assembling pipe schematic internal view of the present invention；
Fig. 7 is the filtering net installation schematic diagram of the present invention.
In figure：1, alkaline scrubber tower；101, gas outlet；102, the first gas-guide tube；103, first motor；104, the first rotation
Bar；105, the first stirring rod；106, alkaline scrubber tower leakage fluid dram；107, alkaline scrubber tower filling opening；2, acid scrubber tower；201,
Acid scrubber tower leakage fluid dram；202, acid scrubber tower filling opening；203, the second motor；204, the second rotating bar；205, it second stirs
Mix leaf；206, the second gas-guide tube；3, filtering tank；301, filtering tank lid；302, the first gasket；303, sliding slot；304, rectangle
Frame；305, filter screen；306, the second gasket；4, assembling pipe；401, three-way pipe；402, annular mounting plate；403, solid
Determine bolt；404, hood；405, exhaust duct；406, mounting bracket；407, wind turbine；5, condenser pipe；6, mounting plate；7, chassis；8,
Downtake pipe；9, second exhaust pipe；10, control panel.
Specific implementation mode
Below in conjunction with the attached drawing in the present invention, the technical solution in the present invention is clearly and completely described, is shown
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
- 7 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of environment-friendly type industrial waste-gas purifier, including peace
The four corners of loading board 6,6 bottom of mounting plate are all provided with chassis 7, and the one end at 6 top of mounting plate is equipped with two rows of mounting brackets 406,
And the top of mounting bracket 406 is equipped with assembling pipe 4, one end of assembling pipe 4 is equipped with downtake pipe 8, and wind turbine
The other end of installing pipe 4 is equipped with three-way pipe 401, and the inside of assembling pipe 4 is equipped with two groups of wind turbines 407,6 top of mounting plate
Middle position filtering tank 3 is installed, and the one end of downtake pipe 8 far from assembling pipe 4 is connected to filtering tank 3, mistake
The middle position of 3 inside both sides of filter tank is all equipped with sliding slot 303, and the inside of sliding slot 303 is equipped with rectangular frame 304, square
The inside of shape frame 304 is equipped with filter screen 305, and 6 both sides of the top far from 406 one end of mounting bracket of mounting plate are separately installed with alkali
Property scrubber tower 1 and acid scrubber tower 2, and 3 top of filtering tank is equipped with condenser pipe 5 at one jiao of acid scrubber tower 2, and
The top of condenser pipe 5 be connected to the top of acid scrubber tower 2, and the top of acid scrubber tower 2 and alkalinity scrubber tower 1 has been equipped with the
Two exhaust pipes 9, and second exhaust pipe 9 is connected to alkaline scrubber tower 1 and acid scrubber tower 2 respectively, the top inside acid scrubber tower 2
End is equipped with the second gas-guide tube 206, and the top of the second gas-guide tube 206 is connected to the output end of condenser pipe 5, acid scrubber tower 2
Internal top is equipped with the second motor 203, the model Y90S-2 of second motor 203, and the second electricity by electric machine support
The output end of machine 203 is equipped with the second rotating bar 204, and one is uniformly equipped on the side wall of the second rotating bar 204 and arranges the 2nd stirring
Leaf 205, the top inside alkaline scrubber tower 1 are equipped with the first gas-guide tube 102, and the top of the first gas-guide tube 102 and second row
Tracheae 9 is connected to, and the top inside alkaline scrubber tower 1 is equipped with first motor 103 by electric machine support, the first motor 103
The model Y90S-2 of the second motor of model 203, and the output end of first motor 103 is equipped with the first rotating bar 104, first
The side wall of rotating bar 104 is uniformly equipped with one and arranges the first stirring rod 105, and the top of alkaline scrubber tower 1 is equipped with gas outlet 101,
Middle position of 6 top of mounting plate close to 1 side of alkaline scrubber tower is equipped with control panel 10, and control panel 10 passes through conducting wire
It is electrically connected respectively with wind turbine 407, first motor 103 and the second motor 203.
Embodiment 1, as the device of Fig. 1,2,3,5,7 can be by the fixing bolt 403 on annular mounting plate 402 by hood
404 are fixed on different positions so that wind turbine 407 can be specified gas punching by different both directions in pumping
It is pumped into device in space, the discharge of gas in designated space can be made more uniform, two groups of wind turbines 407 can be promoted preferably
The speed of air draft improves the efficiency of device.
Embodiment 2 opens first motor 103 and second picture 1-4 when being cleaned to gas by control panel 10
Motor 203 can make the first stirring rod 105 and the second paddle 205 respectively in alkaline scrubber tower 1 and acid scrubber tower 2
The liquid in portion is stirred, and acid and alkali substance and harmful components in gas can preferably be made to be cleaned.
Operation principle：Device is powered on using preceding, two groups of hoods 404 are individually positioned in designated position first
Device, is then fixed on the wall by fixing bolt 403, is then washed to alkalinity by alkaline scrubber tower filling opening 107 by place
Alkaline cleaning fluid is added in the inside of gas tank 1, is then added to the inside of acid scrubber tower 2 by acid scrubber tower filling opening 202
Acidic cleaning solution opens wind turbine 407 so that industrial waste is pumped by hood 404 and is filled by wind turbine 407 by control panel 10
It sets, then drains into the inside of filtering tank 3, by being filtered to gas for the filter screen 305 inside filtering tank 3, then pass through
Condenser pipe 5 by gas break through filter tank 3 inside be discharged, while the inside of condenser pipe 5 to by gas cool down, to
So that some particles drop backs after cooling are to the inside of filtering tank 3, then gas passes through the second gas-guide tube 206 and enters acid gas washing
Bottom end inside tank 2, while the second motor 203 is opened by control panel 10, drive the second paddle 205 to stir liquid
It mixes, liquids and gases fast reaction, then gas is discharged into the inside of alkaline scrubber tower 1 by second exhaust pipe 9, is led by first
Tracheae 102 introduces gas into the bottom end inside alkaline scrubber tower 1, then opens first motor 103 by control panel 10 so that
First motor 103 drives the rotation of the first stirring rod 105 so that the first stirring rod 105 is stirred liquid, then so that gas
It is quickly adequately reacted with the liquid inside alkaline scrubber tower 1, then alkaline scrubber tower 1 is discharged by gas outlet 101 in gas
Inside, may then pass through alkaline scrubber tower leakage fluid dram 106 and alkaline scrubber tower is discharged in liquid by acid scrubber tower leakage fluid dram 201
1 can open filtering tank lid 301 by rectangular frame 304 with acid scrubber tower 2 when needing to clean filter screen 305
It is extracted out from the inside of sliding slot 303, then filter screen 305 is cleaned and replaced.
Finally it should be noted that the above content is merely illustrative of the technical solution of the present invention, rather than the present invention is protected
The limitation of range, those skilled in the art to technical scheme of the present invention carry out it is simple modification or equivalent replacement,
All without departing from the spirit and scope of technical solution of the present invention.
Claims (7)
1. a kind of environment-friendly type industrial waste-gas purifier, including mounting plate (6), it is characterised in that：Mounting plate (6) bottom
Four corners are all provided with chassis (7), and one end at the top of the mounting plate (6) is equipped with two rows of mounting brackets (406), and mounting bracket
(406) assembling pipe (4) is installed at the top of, one end of the assembling pipe (4) is equipped with downtake pipe (8), and
The other end of assembling pipe (4) is equipped with three-way pipe (401), and the inside of the assembling pipe (4) is equipped with two groups of wind turbines
(407), the middle position above the mounting plate (6) is equipped with filtering tank (3), and downtake pipe (8) is pacified far from wind turbine
One end of tubulature (4) is connected to filtering tank (3), and the middle position of the internal both sides of the filtering tank (3) is all equipped with sliding slot
(303), rectangular frame (304) and on the inside of sliding slot (303) is installed, filtering is installed on the inside of the rectangular frame (304)
Net (305), both sides of mounting plate (6) top far from mounting bracket (406) one end are separately installed with alkaline scrubber tower (1) and acid
Property scrubber tower (2), and condenser pipe (5) is installed at one jiao of acid scrubber tower (2) at the top of filtering tank (3), and condense
The top for managing (5) is connected to the top of acid scrubber tower (2), the top peace of the acidity scrubber tower (2) and alkaline scrubber tower (1)
Equipped with there is a second exhaust pipe (9), and second exhaust pipe (9) is connected to alkaline scrubber tower (1) and acid scrubber tower (2) respectively, institute
It states the internal top of acid scrubber tower (2) and the second gas-guide tube (206), and the top of the second gas-guide tube (206) and condensation is installed
The output end connection of (5) is managed, the internal top of the acidity scrubber tower (2) is equipped with the second motor (203) by electric machine support,
And second the output end of motor (203) the second rotating bar (204) is installed, on the side wall of second rotating bar (204) uniformly
It being equipped with one and arranges the 2nd paddle (205), the internal top of the alkalinity scrubber tower (1) is equipped with the first gas-guide tube (102), and
The top of first gas-guide tube (102) is connected to second exhaust pipe (9), and the internal top of the alkalinity scrubber tower (1) passes through motor
Holder is equipped with first motor (103), and the output end of first motor (103) is equipped with the first rotating bar (104), and described first
The side wall of rotating bar (104) is uniformly equipped with one and arranges the first stirring rod (105), is equipped at the top of the alkalinity scrubber tower (1)
Gas outlet (101), middle position of mounting plate (6) top close to alkaline scrubber tower (1) side are equipped with control panel
(10), the control panel (10) is electrically connected with wind turbine (407), first motor (103) and the second motor (203) respectively by conducting wire
It connects.
2. a kind of environment-friendly type industrial waste-gas purifier as described in claim 1, it is characterised in that：The three-way pipe (401)
Both sides be all provided with exhaust duct (405), and the one end of exhaust duct (405) far from assembling pipe (4) is equipped with hood
(404), the outside of the hood (404) is all provided with annular mounting plate (402), and is uniformly set on annular mounting plate (402)
It is equipped with fixing bolt (403).
3. a kind of environment-friendly type industrial waste-gas purifier as described in claim 1, it is characterised in that：In the filtering tank (3)
The middle position of portion bottom end is equipped with the second gasket (306), and the middle position at the top of filtering tank (3) is equipped with filtering
Cover body (301), the both ends at the top of the filtering tank lid (301) are all equipped with handle, and the bottom of filtering tank lid (301)
First gasket (302) is installed.
4. a kind of environment-friendly type industrial waste-gas purifier as described in claim 1, it is characterised in that：The condenser pipe (5) is in
Helical form.
5. a kind of environment-friendly type industrial waste-gas purifier as described in claim 1, it is characterised in that：First stirring rod
(105) and the angle of inclination of the second paddle (205) is all 30 °.
6. a kind of environment-friendly type industrial waste-gas purifier as described in claim 1, it is characterised in that：The alkalinity scrubber tower adds
The top of liquid mouth (107) and acid scrubber tower filling opening (202) is all equipped with sealing cover.
7. a kind of environment-friendly type industrial waste-gas purifier as described in claim 1, it is characterised in that：The alkalinity scrubber tower
(1) bottom of side wall is equipped with alkaline scrubber tower leakage fluid dram (106), and the bottom of described acidity scrubber tower (2) side wall is equipped with acid
Property scrubber tower leakage fluid dram (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810577937.3A CN108744927B (en) | 2018-06-07 | 2018-06-07 | A kind of environment-friendly type industrial waste-gas purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810577937.3A CN108744927B (en) | 2018-06-07 | 2018-06-07 | A kind of environment-friendly type industrial waste-gas purifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108744927A true CN108744927A (en) | 2018-11-06 |
| CN108744927B CN108744927B (en) | 2019-11-15 |
Family
ID=64000295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810577937.3A Active CN108744927B (en) | 2018-06-07 | 2018-06-07 | A kind of environment-friendly type industrial waste-gas purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108744927B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354668A (en) * | 2019-07-28 | 2019-10-22 | 南京涵曦月自动化科技有限公司 | A kind of industrial plant waste gas purification dust arrester |
| CN113786684A (en) * | 2021-10-12 | 2021-12-14 | 上海市计量测试技术研究院 | Environment-friendly industrial waste gas purification device |
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| WO2006118369A1 (en) * | 2005-04-30 | 2006-11-09 | Dai Sung Engineering Environment Co., Ltd. | Hybrid-type apparatus for treating exhaust gas having a condenser |
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| CN207342487U (en) * | 2017-09-30 | 2018-05-11 | 广东石油化工学院 | A kind of coal-fired plant flue gas purifier of improved structure |
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| WO1998016301A1 (en) * | 1996-10-15 | 1998-04-23 | Thomas Thomassen | A method for removing mercury and sulphur dioxide from gases |
| WO2006118369A1 (en) * | 2005-04-30 | 2006-11-09 | Dai Sung Engineering Environment Co., Ltd. | Hybrid-type apparatus for treating exhaust gas having a condenser |
| CN101011642A (en) * | 2007-01-10 | 2007-08-08 | 北京大学 | Apparatus and method for treating multi-component complex waste gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354668A (en) * | 2019-07-28 | 2019-10-22 | 南京涵曦月自动化科技有限公司 | A kind of industrial plant waste gas purification dust arrester |
| CN113786684A (en) * | 2021-10-12 | 2021-12-14 | 上海市计量测试技术研究院 | Environment-friendly industrial waste gas purification device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108744927B (en) | 2019-11-15 |
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