CN107670483A - The discharging processing device of sour gas - Google Patents
The discharging processing device of sour gas Download PDFInfo
- Publication number
- CN107670483A CN107670483A CN201711023883.8A CN201711023883A CN107670483A CN 107670483 A CN107670483 A CN 107670483A CN 201711023883 A CN201711023883 A CN 201711023883A CN 107670483 A CN107670483 A CN 107670483A
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- exchange box
- flow
- tank
- air inlet
- 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.)
- Withdrawn
Links
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000007599 discharging Methods 0.000 title claims abstract description 9
- 239000000428 dust Substances 0.000 claims abstract description 31
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 28
- 230000002378 acidificating effect Effects 0.000 abstract description 9
- 239000003513 alkali Substances 0.000 abstract description 8
- 239000013618 particulate matter Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000004062 sedimentation Methods 0.000 abstract description 4
- 239000002918 waste heat Substances 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- -1 flow tank Chemical compound 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- 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
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of discharging processing device of sour gas, is provided with spiral air-conducting groove along sedimentation chamber interior wall, spiral air-conducting groove is connected with air inlet, and multiple flow-stopping plates are transversely provided with flow tank；The sidewall upper of flow tank is connected by pipeline with heat exchange box, and the inside of heat exchange box is provided with spiral helicine heat exchanger tube, and the bottom even in heat exchange box is provided with multiple dust boards, and the upper end of dust board tilts to the inlet end of heat exchange box；The side wall of heat exchange box and one end of air inlet pipe connect, the other end of air inlet pipe is stretched into lye tank, stretch into the air inlet pipe in lye tank and be uniformly provided with multiple breather pipes, the port of each breather pipe is equipped with lid, covered body wall, multiple taper gas outlets are along the circumferential direction uniformly provided with, exhaust port is provided with the top of heat exchange box.The particulate matter in sour gas can be removed, and carries out waste heat recovery so that sour gas fully contacts with alkali lye, improves the absorption efficiency of acidic materials, solves problems of the prior art.
Description
Technical field
The invention belongs to waste treatment technical field, is related to a kind of discharging processing device of sour gas.
Background technology
As society continues to develop, environmental problem is increasingly taken seriously, but is deposited in the production and processing of factory mostly
Particulate matter is carried in the emission problem of sour gas, and in actual production in sour gas and temperature is higher, particulate matter is to row
Put or processing equipment has different degrees of damage, reduce the service life of equipment；High-temperature gas directly discharges, and pollutes environment；
The processing tapping equipment of existing sour gas is low to the acidic materials absorptivity in gas, it is difficult to reaches discharge standard.
The content of the invention
In order to achieve the above object, the present invention provides a kind of discharging processing device of sour gas, can remove sour gas
Particulate matter in body, and carry out waste heat recovery so that sour gas fully contacts with alkali lye, improves the absorption effect of acidic materials
Rate, solve problems of the prior art.
The technical solution adopted in the present invention is a kind of discharging processing device of sour gas, including flow tank, flow tank
Casing be cylinder, be provided with spiral air-conducting groove along sedimentation chamber interior wall, spiral air-conducting groove connects with air inlet, horizontal in flow tank
Provided with multiple flow-stopping plates, the flow-stopping plate of opposite sides is staggered, and the inwall of flow-stopping plate and flow tank is detachably connected, flow tank
Bottom be taper, the bottom least significant end of flow tank is connected with dust flue, and dust flue is provided with valve；The sidewall upper of flow tank
It is connected by pipeline with the heat exchange box of titanium matter, the inside of heat exchange box is provided with the spiral helicine heat exchanger tube of titanium matter, heat exchange box
Bottom, delivery port is provided with inlet end, heat exchange box bottom, is provided with water inlet at outlet side, water inlet, delivery port are equal
It is connected with heat exchanger tube；Bottom even in heat exchange box is provided with multiple dust boards, and lower end and the heat exchange box of dust board are detachably connected,
The upper end of dust board tilts to the inlet end of heat exchange box, and the upper end of dust board is reclinate arc；The side wall of heat exchange box with
One end connection of air inlet pipe, the other end of air inlet pipe stretched into lye tank, stretch into the air inlet pipe in lye tank be uniformly provided with it is more
Individual breather pipe, the port of each breather pipe are equipped with lid, the side wall of lid, are along the circumferential direction uniformly provided with multiple taper outlets
Mouthful, aperture of the taper gas outlet along gas discharge direction gradually increases, and the junction of heat exchange box and breather pipe is provided with filter, changes
The top of hot tank is provided with exhaust port.
The present invention is further characterized in that further, the both ends of lye tank bottom are respectively equipped with lye import, alkali lye goes out
Mouthful.
Further, the dust board and the angle of heat exchange box bottom surface are 40-50 °.
The beneficial effects of the invention are as follows：The high-temperature acidic gas that need to be handled is passed through flow tank by the present invention by air inlet,
Sour gas flows along spiral air-conducting groove in flow tank, in the presence of flow-stopping plate, can effectively promote the mixability of gas, promotees
Fine particulates coacervating large particle thing in inlet air flow, got rid of in the presence of inertia force to sedimentation chamber interior wall, fall into sedimentation
The conical lower portion of case；High-temperature acidic gas after dedusting is entered in heat exchange box by pipeline, is flowed along the outer wall of heat exchanger tube,
By the heat transfer of carrying to the cold water in heat exchanger tube, waste heat recovery recycling is carried out, heat exchanger tube is helical form, increases heat exchange
The length of pipe, extend residence time of the sour gas in heat exchange box, promote heat exchange efficiency to improve；By the sour gas of cooling
Fully contacted with the alkali lye in lye tank through air inlet pipe, absorb the acidic materials in gas, reach discharge standard.
Bottom even in heat exchange box is provided with multiple dust boards, and lower end and the heat exchange box of dust board are detachably connected, dust-break
The upper end of plate tilts to the inlet end of heat exchange box, and the upper end of dust board be reclinate arc, the gas process in heat exchange box
During dust board, air-flow changes, and in local turbulization, extends the air-flow residence time, improves heat exchanger effectiveness；It is simultaneously acid
The partial particulate thing and the outer wall collision rift of heat exchanger tube that are carried in gas fall to the bottom of heat exchange box, and dust board can contain
The particulate matter of precipitation rises again, reduces influence of the particulate matter to heat exchanger effectiveness.
To stretch into the air inlet pipe in lye tank and be uniformly provided with multiple breather pipes, the port of each breather pipe is equipped with lid,
The side wall of lid, be along the circumferential direction uniformly provided with multiple taper gas outlets, aperture of the taper gas outlet along gas discharge direction by
It is cumulative big, there is diffusion to the sour gas of discharge, be advantageous to sour gas and fully contacted with alkali lye, improve sour gas
Assimilation effect；The junction of heat exchange box and breather pipe is provided with filter, for the debris in filter acid gases, avoids taper
Gas outlet blocks.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure, 1. flow tanks, 2. heat exchange box, 3. lye tanks, 4. air inlets, 5. spiral air-conducting grooves, 6. flow-stopping plates, 7. dust discharges
Pipe, 8. valves, 9. heat exchanger tubes, 10. dust boards, 11. water inlets, 12. delivery ports, 13. lids, 14. taper gas outlets, 15. is logical
Tracheae, 16. filters, 17. lye imports, 18. lye exports, 19. exhaust ports, 20. air inlet pipe.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The structure of the embodiment of the present invention, as shown in figure 1, the casing of flow tank 1 is cylinder, it is provided with along the inwall of flow tank 1
Spiral air-conducting groove 5, spiral air-conducting groove 5 are connected with air inlet 4, and multiple flow-stopping plates 6 are transversely provided with flow tank 1, opposite sides
Flow-stopping plate 6 is staggered, and the inwall of flow-stopping plate 6 and flow tank 1 is detachably connected, and the bottom of flow tank 1 is taper, flow tank 1
Bottom least significant end be connected with dust flue 7, dust flue 7 is provided with valve 8；The sidewall upper of flow tank 1 passes through pipeline and titanium
The heat exchange box 2 of matter connects, and the inside of heat exchange box 2 is provided with the spiral helicine heat exchanger tube 9 of titanium matter, the bottom of heat exchange box 2, close to entering
Be provided with delivery port 12 at gas end, the bottom of heat exchange box 2, be provided with water inlet 11 at outlet side, water inlet 11, delivery port 12 with
Heat exchanger tube 9 connects；So that the cold water (flow) direction and the flow direction of sour gas in heat exchange box 2 in heat exchanger tube 9 are changed on the contrary, strengthening
Thermal effect；Bottom even in heat exchange box 2 is provided with multiple dust boards 10, and lower end and the heat exchange box 2 of dust board 10 are detachably connected,
The upper end of dust board 10 tilts to the inlet end of heat exchange box 2, and dust board 10 and the angle of the bottom surface of heat exchange box 2 are 40-50 °, dust-break
The upper end of plate 10 is reclinate arc；When gas in heat exchange box 2 passes through dust board 10, air-flow changes, in part
Turbulization, extend the air-flow residence time, improve heat exchanger effectiveness；The partial particulate thing carried simultaneously in sour gas and heat exchange
The outer wall collision rift of pipe 9 falls to the bottom of heat exchange box 2, and dust board 10 can contain that settled particulate matter rises again, drop
Influence of the low particulate matter to heat exchanger effectiveness；The side wall of heat exchange box 2 is connected with one end of air inlet pipe 20, the other end of air inlet pipe 20
Stretch into lye tank 3, multiple breather pipes 15, the end of each breather pipe 15 are uniformly provided with the air inlet pipe 20 stretched into lye tank 3
Mouth is equipped with lid 13, the side wall of lid 13, is along the circumferential direction uniformly provided with multiple taper gas outlets 14, the edge of taper gas outlet 14
The aperture of gas discharge direction gradually increases, and has diffusion to the sour gas of discharge, is advantageous to sour gas and alkali lye
Fully contact, improve the assimilation effect of sour gas；Heat exchange box 2 and the junction of air inlet pipe 20 are provided with filter 16, are used for
The debris in sour gas is filtered, avoids taper gas outlet 14 from blocking；The top of heat exchange box 2 is provided with exhaust port 19；Lye tank 3
The both ends of bottom are respectively equipped with lye import 17, lye export 18, for changing the alkali lye in lye tank 3.
Heat exchange box 2, heat exchanger tube 9 are made using titanium matter, have the characteristics of density is small, heat transfer is fast, and corrosion resisting property is good.
The operation principle of the embodiment of the present invention：In use, valve 8 is closed, by the high-temperature acidic gas that need to be handled by entering
Gas port 4 is passed through flow tank 1, and sour gas flows along spiral air-conducting groove 5 in flow tank 1, can be effective in the presence of flow-stopping plate 6
Promote the mixability of gas, promote the fine particulates coacervating large particle thing in air-flow, got rid of in the presence of inertia force
To the inwall of flow tank 1, the conical lower portion of flow tank 1 is fallen into；High-temperature acidic gas after dedusting is entered by pipeline to exchange heat
In case 2, flowed along the outer wall of heat exchanger tube 9, by the heat transfer of carrying to the cold water in heat exchanger tube 9, it is sharp again to carry out waste heat recovery
With heat exchanger tube 9 is helical form, increases the length of heat exchanger tube 9, extends residence time of the sour gas in heat exchange box 2, promotes
Heat exchange efficiency improves；Sour gas by cooling fully contacts through air inlet pipe 20 with the alkali lye in lye tank 3, absorbs in gas
Acidic materials, reach discharge standard；After being disposed, valve 8, the precipitum of discharge flow tank 1 bottom are opened.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or equipment including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or equipment institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including institute
State in process, method, article or the equipment of key element and other identical element also be present.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., are all contained in protection scope of the present invention
It is interior.
Claims (3)
1. a kind of discharging processing device of sour gas, it is characterised in that including flow tank (1), the casing of flow tank (1) is circle
Cylindricality, spiral air-conducting groove (5) is provided with along flow tank (1) inwall, spiral air-conducting groove (5) connects with air inlet (4), flow tank (1)
Multiple flow-stopping plates (6) are inside transversely provided with, the flow-stopping plate (6) of opposite sides is staggered, and flow-stopping plate (6) is interior with flow tank (1)
Wall is detachably connected, and the bottom of flow tank (1) is taper, and the bottom least significant end of flow tank (1) is connected with dust flue (7), dust discharge
Pipe (7) is provided with valve (8)；The sidewall upper of flow tank (1) is connected by pipeline with the heat exchange box (2) of titanium matter, heat exchange box
(2) inside is provided with the spiral helicine heat exchanger tube (9) of titanium matter, heat exchange box (2) bottom, is provided with delivery port at inlet end
(12), heat exchange box (2) bottom, be provided with water inlet (11) at the outlet side, water inlet (11), delivery port (12) are and heat exchanger tube
(9) connect；Bottom even in heat exchange box (2) is provided with multiple dust boards (10), and lower end and the heat exchange box (2) of dust board (10) can
Dismantling connection, the upper end of dust board (10) tilt to the inlet end of heat exchange box (2), and the upper end of dust board (10) is reclinate
Arc；The side wall of heat exchange box (2) is connected with one end of air inlet pipe (20), and the other end of air inlet pipe (20) is stretched into lye tank (3),
Multiple breather pipes (15) are uniformly provided with the air inlet pipe (20) stretched into lye tank (3), the port of each breather pipe (15) is all provided with
There is lid (13), the side wall of lid (13), be along the circumferential direction uniformly provided with multiple taper gas outlets (14), taper gas outlet (14)
Gradually increase along the aperture of gas discharge direction, heat exchange box (2) and the junction of air inlet pipe (20) are provided with filter (16), exchange heat
The top of case (2) is provided with exhaust port (19).
A kind of 2. discharging processing device of sour gas according to claim 1, it is characterised in that lye tank (3) bottom
Both ends be respectively equipped with lye import (17), lye export (18).
A kind of 3. discharging processing device of sour gas according to claim 1, it is characterised in that the dust board (10)
Angle with heat exchange box (2) bottom surface is 40-50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023883.8A CN107670483A (en) | 2017-10-27 | 2017-10-27 | The discharging processing device of sour gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711023883.8A CN107670483A (en) | 2017-10-27 | 2017-10-27 | The discharging processing device of sour gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107670483A true CN107670483A (en) | 2018-02-09 |
Family
ID=61143187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711023883.8A Withdrawn CN107670483A (en) | 2017-10-27 | 2017-10-27 | The discharging processing device of sour gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107670483A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113244750A (en) * | 2021-05-03 | 2021-08-13 | 陈强 | Acid gas processing apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2057372U (en) * | 1989-11-22 | 1990-05-23 | 何绍基 | Powerless low-resistance vortex flow duster of kiln |
| CN102416366A (en) * | 2011-12-19 | 2012-04-18 | 江苏新中环保股份有限公司 | Cyclone dust remover |
| CN104001402A (en) * | 2014-06-13 | 2014-08-27 | 龙飞 | Off-gas treatment system |
| CN106807202A (en) * | 2017-02-14 | 2017-06-09 | 何小平 | A kind of high-efficient treatment device for sour gas |
| CN206304472U (en) * | 2016-12-26 | 2017-07-07 | 台州市旌羽电器有限公司 | A kind of emission-control equipment with waste heat recovery |
| CN207413132U (en) * | 2017-10-27 | 2018-05-29 | 陕西钛普稀有金属材料有限公司 | The discharging processing device of sour gas |
-
2017
- 2017-10-27 CN CN201711023883.8A patent/CN107670483A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2057372U (en) * | 1989-11-22 | 1990-05-23 | 何绍基 | Powerless low-resistance vortex flow duster of kiln |
| CN102416366A (en) * | 2011-12-19 | 2012-04-18 | 江苏新中环保股份有限公司 | Cyclone dust remover |
| CN104001402A (en) * | 2014-06-13 | 2014-08-27 | 龙飞 | Off-gas treatment system |
| CN206304472U (en) * | 2016-12-26 | 2017-07-07 | 台州市旌羽电器有限公司 | A kind of emission-control equipment with waste heat recovery |
| CN106807202A (en) * | 2017-02-14 | 2017-06-09 | 何小平 | A kind of high-efficient treatment device for sour gas |
| CN207413132U (en) * | 2017-10-27 | 2018-05-29 | 陕西钛普稀有金属材料有限公司 | The discharging processing device of sour gas |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113244750A (en) * | 2021-05-03 | 2021-08-13 | 陈强 | Acid gas processing apparatus |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180209 |