CN109647166A - A kind of exhaust gas anti-block filtering device in sewage treatment - Google Patents
A kind of exhaust gas anti-block filtering device in sewage treatment Download PDFInfo
- Publication number
- CN109647166A CN109647166A CN201910069724.4A CN201910069724A CN109647166A CN 109647166 A CN109647166 A CN 109647166A CN 201910069724 A CN201910069724 A CN 201910069724A CN 109647166 A CN109647166 A CN 109647166A
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- CN
- China
- Prior art keywords
- shell
- filter
- exhaust gas
- sewage treatment
- filtering device
- 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
-
- 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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- 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
- B01D50/10—Combinations of devices covered by groups B01D45/00, B01D46/00 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
- B01D53/96—Regeneration, reactivation or recycling of reactants
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (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)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses the exhaust gas anti-block filtering devices in a kind of sewage treatment, including shell, spray piping, filter miscellaneous box, filter chamber, sieve plate and circulating pump, the shell upper end is equipped with air inlet, bottom is movably set with the miscellaneous box of filter in shell, the shell right side central is provided through slag-drip opening, the shell left lower is provided through venthole, upper inside wall is provided with spray piping on the right side of the shell, the filter miscellaneous box right wall bottom is connected with circulating pump, it is connected in the input terminal of the circulating pump and the miscellaneous box of filter, the output end of the circulating pump is connected to by corrugated conduit with the spray piping；The housing central section is horizontally disposed sieve plate；Riveting is provided with the riveting of shell right wall described in filter chamber and is provided with impurity-accumulating cavity on the outside of shell left wall.The present invention, which can recycle, is efficiently filtered cleaning treatment to exhaust gas, and can effectively prevent blocking automatically in long-play, to guarantee the continuous and effective of processing effect.
Description
Technical field
Exhaust gas anti-block filtering device the present invention relates to sewage treatment field, in specifically a kind of sewage treatment.
Background technique
Fast-developing today is industrialized, water pollution phenomenon is very serious, and areas at different levels all start to pay attention to the place of sewage
Reason problem, sewage during processing because it is various pollution impurity presence, can also generate a large amount of exhaust gas, these exhaust gas gas
It smells foul and injury will also result in environment.
In the prior art, when handling exhaust gas after multi-pass peracid/aqueous slkali cleaning, filtration drying discharge, but for a long time
In the case where filtering, impurity is easy to be attached on filter structure, so as to cause filter effect decline, while also will affect and passing through
Efficiency then influences entire processing system.
Summary of the invention
The purpose of the present invention is to provide the exhaust gas anti-block filtering devices in a kind of sewage treatment, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme:
A kind of exhaust gas anti-block filtering device in sewage treatment, including shell, spray piping, the miscellaneous box of filter, filter chamber, sieve plate and
Circulating pump, the shell upper end are equipped with air inlet, and bottom is movably set with the miscellaneous box of filter in shell, and the shell right side central runs through
It is provided with slag-drip opening, the shell left lower is provided through venthole, and upper inside wall is provided with spray on the right side of the shell
Pipeline, the filter miscellaneous box right wall bottom are connected with circulating pump, are connected in the input terminal of the circulating pump and the miscellaneous box of filter,
The output end of the circulating pump is connected to by corrugated conduit with the spray piping；The housing central section is horizontally disposed strainer
Plate；Riveting is provided with filter chamber on the outside of shell left wall, and filter chamber right wall lower part is connected to the venthole left end, the shell
The riveting of body right wall is provided with impurity-accumulating cavity, and impurity-accumulating cavity left wall top is connected to correspondence on the right side of the slag-drip opening.
As a further solution of the present invention: zeolite has been filled in the miscellaneous box of filter, the miscellaneous box of filter passes through described
Shell right edge activity is pushed into shell, and the miscellaneous box right edge of filter is inlaid with rubber edges.
As a further solution of the present invention: the slag-drip opening bottom right tilts down, front and back two in the slag-drip opening
Side is symmetrically embedded in and is provided with vertical sliding slot.
As a further solution of the present invention: being tilted down on the right side of the venthole.
As a further solution of the present invention: the spray piping is to be fixed on the inner walls by fastener riveting
The pipeline being vertically arranged equidistantly distributes on the pipeline and is communicated with wide-angle spray head.
As a further solution of the present invention: being rotated between the sieve plate left end and the shell inner left wall by torsional spring
Connection, the sieve plate and the inner walls activity agree with, and the sieve plate keeps horizontal under the effect of torsion spring.
As a further solution of the present invention: two sidewalls, which are symmetrically welded, in the filter chamber is provided with baffle, the institute of two sides
It states baffle and is staggeredly equipped with multiple groups, the baffle end tilts down, and the filter chamber upper end is by being threadedly engaged flexible connection
It is provided with filtering exhaust pipe, the filtering exhaust pipe is inlaid with filling active carbon in the pipeline of strainer by both ends and formed.
As a further solution of the present invention: the sieve plate is by frame, metal mesh, horizontal concrete chute, sliding strainer and cunning
Dynamic protrusion composition, the frame internal upper part welding are provided with metal mesh, symmetrical insertion setting on the right side of front-rear side walls in the frame
There is horizontal concrete chute, be slidably connected between the horizontal concrete chute and be provided with sliding strainer, the sliding strainer right end sliding runs through institute
It states and extends outwardly on the right side of frame, sliding strainer right end front and rear sides are symmetrically arranged with slide protrusion, and the slide protrusion is sliding
Dynamic cooperation is connected between bottom by compressed spring in the slide protrusion lower end and the vertical sliding slot in vertical sliding slot.
As a further solution of the present invention: vertical welding is provided with brush stroke, the brush stroke point in the impurity-accumulating cavity
Cloth is provided with multiple groups.
Compared with prior art, the beneficial effects of the present invention are:
1, alkaline solution is added in filtering miscellaneous box, solution can be sprayed by spray piping after starting circulating pump, in this way may be used
To go the harmful substance in removing exhaust gas, the floating material in exhaust gas can also be cleaned and be allowed to fall, impurity is retained by sieve plate, molten
Liquid is filtered in miscellaneous box and be can also continue to after zeolite adsorption filtration for exhaust-gas treatment；
2, it after air-flow is by alkaline solution cleaning and sieve plate filtering, is entered in filter chamber by venthole, by keeping off
Remaining partial impurities condense and pass through venthole and can flow back into the miscellaneous box of filter when plate, and tail gas is arranged by filtering exhaust pipe
Out, high-efficiency cleaning, easy to use, filtering exhaust pipe can be backed out with activity and be replaced；
3, air-flow can filter floating impurity therein by sieve plate after over cleaning, after impurity long-term accumulation, air-flow and alkali
Property solution constantly reduced by efficiency, so that the upper surface stress of sieve plate is gradually increased, sieve plate in air-flow motive force and
Right end tilts down under the action of hydraulic shock power, and simultaneously slide protrusion and vertical sliding slot are slidably matched, sliding strainer by
The gradually Slideslip to the right from horizontal concrete chute, not only ensure that filter effect continuous and effective, but also can pass through the impact force of air-flow in this way
The impurity of strainer plate surface is flushed to by slag-drip opening with the impact force-fitting of solution in the impurity-accumulating cavity in the outside of shell, impurity twines
It is wound on brush stroke.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the exhaust gas anti-block filtering device in sewage treatment.
Fig. 2 be a kind of sewage treatment in exhaust gas anti-block filtering device in filtering exhaust pipe structural schematic diagram.
Fig. 3 be a kind of sewage treatment in exhaust gas anti-block filtering device in sieve plate structural schematic diagram.
In figure: 1- shell, 11- slag-drip opening, 12- venthole, the vertical sliding slot of 13-, 2- air inlet, 3- spray piping, 4- filter
Miscellaneous box, 5- filter chamber, 51- baffle, 52- filtering exhaust pipe, 6- sieve plate, 61- frame, 62- metal mesh, 63- horizontal concrete chute,
64- slides strainer, 65- slide protrusion, 7- circulating pump, 71- corrugated conduit, 8- impurity-accumulating cavity, 81- brush stroke.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Please refer to Fig. 1~2, in the embodiment of the present invention, a kind of exhaust gas anti-block filtering device in sewage treatment, including shell 1, spray
Shower pipe road 3, the miscellaneous box 4 of filter, filter chamber 5, sieve plate 6 and circulating pump 7,1 upper end of shell are equipped with air inlet 2, exhaust gas by into
Port 2 enters in shell 1, and bottom is movably set with the miscellaneous box 4 of filter in shell 1, has been filled with zeolite in the miscellaneous box 4 of filter,
The miscellaneous box 4 of filter is pushed into shell 1 by the 1 right edge activity of shell, and miscellaneous 4 right edge of box of filter is inlaid with rubber edge
Edge can leak in this way to avoid gas, and 1 right side central of shell is provided through slag-drip opening 11,11 bottom of slag-drip opening
Right side tilts down, and front and rear sides, which are symmetrically embedded in, in the slag-drip opening 11 is provided with vertical sliding slot 13,1 left lower of shell
It is provided through venthole 12, is tilted down on the right side of the venthole 12, the 1 right side upper inside wall of shell is provided with spray tube
Road 3, the spray piping 3 is that the pipeline being vertically arranged for being fixed on 1 inner wall of shell is riveted by fastener, on the pipeline
Equidistantly distribute and be communicated with wide-angle spray head, the miscellaneous 4 right wall bottom of box of the filter is connected with circulating pump 7, the circulating pump 7 it is defeated
Entering and is connected in end and the miscellaneous box 4 of the filter, the output end of the circulating pump 7 is connected to by corrugated conduit 71 with the spray piping 3,
Alkaline solution is added in filtering miscellaneous box 4, solution can be sprayed by spray piping 3 after starting circulating pump 7, can be gone in this way
Floating material in exhaust gas can also be cleaned and be allowed to fall by the harmful substance in removing exhaust gas；
Being horizontally disposed in the middle part of the shell 1 has sieve plate 6, passes through torsion between 1 inner left wall of 6 left end of sieve plate and the shell
Spring rotation connection, the sieve plate 6 and 1 inner wall activity of the shell agree with, and the sieve plate 6 keeps water under the effect of torsion spring
Flat, when 6 surface impurity of sieve plate depends on excessive blocking, sieve plate 6 can rotate under air-flow and hydraulic shock, at this time
The impurity on surface can be swept away, and then restored horizontal, effectively avoided blocking in this way；
Riveting is provided with filter chamber 5 on the outside of 1 left wall of shell, and the 5 right wall lower part of filter chamber is connected to 12 left end of venthole,
Two sidewalls, which are symmetrically welded, in the filter chamber 5 is provided with baffle 51, and the baffle 51 of two sides is staggeredly equipped with multiple groups, the gear
51 end of plate tilts down, and 5 upper end of filter chamber is provided with filtering exhaust pipe 52, the mistake by being threadedly engaged flexible connection
Filter exhaust pipe 52 is inlaid with filling active carbon in the pipeline of strainer by both ends and formed；
1 right wall of the shell riveting is provided with impurity-accumulating cavity 8, corresponds on the right side of the 8 left wall top of impurity-accumulating cavity and the slag-drip opening 11
It is connected to, vertical welding is provided with brush stroke 81 in the impurity-accumulating cavity 8, and the distribution of brush stroke 81 is provided with multiple groups.
Embodiment 2
Referring to Fig. 3, the exhaust gas anti-block filtering device in a kind of sewage treatment, wherein the sieve plate 6 is by frame 61, metal mesh
62, horizontal concrete chute 63, sliding strainer 64 and slide protrusion 65 form, and 61 internal upper part of the frame welding is provided with metal mesh 62,
Symmetrical insertion is provided with horizontal concrete chute 63 on the right side of front-rear side walls in the frame 61, is slidably connected and sets between the horizontal concrete chute 63
It is equipped with sliding strainer 64,64 right end of the sliding strainer sliding extends outwardly on the right side of the frame 61, the sliding strainer
64 right end front and rear sides are symmetrically arranged with slide protrusion 65, and the slide protrusion 65 is slidably fitted in vertical sliding slot 13, described
It is connected between bottom by compressed spring in 65 lower end of slide protrusion and the vertical sliding slot 13, air-flow passes through filter after over cleaning
Web plate 6 can filter floating impurity therein, and after impurity long-term accumulation, air-flow and alkaline solution are constantly reduced by efficiency,
To which the upper surface stress of sieve plate 6 is gradually increased, right end under the action of air-flow motive force and hydraulic shock power of sieve plate 6
It tilts down, simultaneously slide protrusion 65 and vertical sliding slot 13 are slidably matched, and sliding strainer 64 is gradually from horizontal concrete chute 63
Slideslip to the right not only ensure that filter effect continuous and effective in this way, but also can pass through the impact force of air-flow and the impact force of solution
The impurity on 6 surface of sieve plate is flushed to the outside of shell 1 by cooperation by slag-drip opening 11.
The standardized element that the present invention uses can commercially, and shaped piece is according to specification and attached drawing note
Load can carry out customized, and the specific connection type of each part is all made of in the prior art mature bolt, rivet, welding etc.
Conventional means, mechanical, part and equipment are all made of in the prior art, conventional model, in addition circuit connection uses the prior art
Middle conventional connection type, this will not be detailed here.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (9)
1. the exhaust gas anti-block filtering device in a kind of sewage treatment, including shell (1), spray piping (3), the miscellaneous box (4) of filter, filtering
Chamber (5), sieve plate (6) and circulating pump (7), shell (1) upper end are equipped with air inlet (2), the interior bottom activity setting of shell (1)
There is the miscellaneous box (4) of filter, shell (1) right side central is provided through slag-drip opening (11), and shell (1) left lower, which runs through, to be set
It is equipped with venthole (12), upper inside wall is provided with spray piping (3) on the right side of the shell (1), which is characterized in that the miscellaneous box of filter
(4) right wall bottom is connected with circulating pump (7), is connected in the input terminal of the circulating pump (7) and the miscellaneous box (4) of filter, institute
The output end for stating circulating pump (7) is connected to by corrugated conduit (71) with the spray piping (3)；It is horizontal in the middle part of the shell (1)
It is provided with sieve plate (6)；Riveting is provided with filter chamber (5) on the outside of shell (1) left wall, filter chamber (5) the right wall lower part and institute
The connection of venthole (12) left end is stated, shell (1) the right wall riveting is provided with impurity-accumulating cavity (8), impurity-accumulating cavity (8) the left wall top
It is connected to correspondence on the right side of the slag-drip opening (11).
2. the exhaust gas anti-block filtering device in a kind of sewage treatment according to claim 1, which is characterized in that the filter is miscellaneous
Zeolite is filled in box (4), the miscellaneous box (4) of filter is pushed into shell (1) by the shell (1) right edge activity, institute
It states miscellaneous box (4) right edge of filter and is inlaid with rubber edges.
3. the exhaust gas anti-block filtering device in a kind of sewage treatment according to claim 1, which is characterized in that the deslagging
Mouth (11) bottom right tilts down, and the interior front and rear sides of the slag-drip opening (11), which are symmetrically embedded in, is provided with vertical sliding slot (13).
4. the exhaust gas anti-block filtering device in a kind of sewage treatment according to claim 1, which is characterized in that the ventilation
It is tilted down on the right side of hole (12).
5. the exhaust gas anti-block filtering device in a kind of sewage treatment according to claim 1, which is characterized in that the spray
Pipeline (3) is that the pipeline being vertically arranged for being fixed on the shell (1) inner wall is riveted by fastener, equidistant point on the pipeline
Cloth is communicated with wide-angle spray head.
6. the exhaust gas anti-block filtering device in a kind of sewage treatment according to claim 1, which is characterized in that the filtering
Chamber (5) interior two sidewalls, which are symmetrically welded, to be provided with baffle (51), and the baffle (51) of two sides is staggeredly equipped with multiple groups, the baffle
(51) end tilts down, and filter chamber (5) upper end is provided with filtering exhaust pipe (52), institute by being threadedly engaged flexible connection
It states filtering exhaust pipe (52) and is inlaid with filling active carbon in the pipeline of strainer by both ends and form.
7. the exhaust gas anti-block filtering device in a kind of sewage treatment according to claim 1, which is characterized in that the strainer
It is rotatablely connected between plate (6) left end and the shell (1) inner left wall by torsional spring, in the sieve plate (6) and the shell (1)
Wall activity agrees with, and the sieve plate (6) keeps horizontal under the effect of torsion spring.
8. the exhaust gas anti-block filtering device in a kind of sewage treatment according to claim 7, which is characterized in that the strainer
Plate (6) is made of frame (61), metal mesh (62), horizontal concrete chute (63), sliding strainer (64) and slide protrusion (65), the side
The welding of frame (61) internal upper part is provided with metal mesh (62), and symmetrical insertion is provided with level on the right side of the interior front-rear side walls of frame (61)
Sliding slot (63) is slidably connected between the horizontal concrete chute (63) and is provided with sliding strainer (64), sliding strainer (64) right end
Sliding extends outwardly on the right side of the frame (61), and it is convex that sliding strainer (64) the right end front and rear sides are symmetrically arranged with sliding
It rises (65), the slide protrusion (65) is slidably fitted in vertical sliding slot (13), slide protrusion (65) lower end and described hangs down
It is connected between straight runner (13) interior bottom by compressed spring.
9. the exhaust gas anti-block filtering device in a kind of sewage treatment according to claim 1, which is characterized in that the collection is miscellaneous
Chamber (8) interior vertical welding is provided with brush stroke (81), and brush stroke (81) distribution is provided with multiple groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069724.4A CN109647166A (en) | 2019-01-24 | 2019-01-24 | A kind of exhaust gas anti-block filtering device in sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069724.4A CN109647166A (en) | 2019-01-24 | 2019-01-24 | A kind of exhaust gas anti-block filtering device in sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109647166A true CN109647166A (en) | 2019-04-19 |
Family
ID=66121389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910069724.4A Withdrawn CN109647166A (en) | 2019-01-24 | 2019-01-24 | A kind of exhaust gas anti-block filtering device in sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109647166A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112452074A (en) * | 2020-10-28 | 2021-03-09 | 北京北方华创微电子装备有限公司 | Exhaust gas treatment device and semiconductor device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108311384A (en) * | 2018-02-08 | 2018-07-24 | 遵义市聚源建材有限公司 | One kind being convenient for fines collection powder concentrator |
| CN108786288A (en) * | 2018-06-20 | 2018-11-13 | 耿学威 | A kind of pharmacy emission-control equipment |
-
2019
- 2019-01-24 CN CN201910069724.4A patent/CN109647166A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108311384A (en) * | 2018-02-08 | 2018-07-24 | 遵义市聚源建材有限公司 | One kind being convenient for fines collection powder concentrator |
| CN108786288A (en) * | 2018-06-20 | 2018-11-13 | 耿学威 | A kind of pharmacy emission-control equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112452074A (en) * | 2020-10-28 | 2021-03-09 | 北京北方华创微电子装备有限公司 | Exhaust gas treatment device and semiconductor device |
| CN112452074B (en) * | 2020-10-28 | 2023-07-14 | 北京北方华创微电子装备有限公司 | Exhaust gas treatment device and semiconductor device |
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Application publication date: 20190419 |