CN211659691U - Desulfurization and denitrification tail gas purification device - Google Patents
Desulfurization and denitrification tail gas purification device Download PDFInfo
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- CN211659691U CN211659691U CN201922063554.7U CN201922063554U CN211659691U CN 211659691 U CN211659691 U CN 211659691U CN 201922063554 U CN201922063554 U CN 201922063554U CN 211659691 U CN211659691 U CN 211659691U
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- liquid
- feed inlet
- outlet
- barrel
- centrifuge
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- 238000006477 desulfuration reaction Methods 0.000 title claims description 19
- 230000023556 desulfurization Effects 0.000 title claims description 19
- 238000000746 purification Methods 0.000 title claims description 8
- 239000007788 liquid Substances 0.000 claims abstract description 63
- 239000007921 spray Substances 0.000 claims abstract description 39
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 29
- 230000003647 oxidation Effects 0.000 claims abstract description 28
- 239000002893 slag Substances 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 21
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 3
- 150000004767 nitrides Chemical class 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 20
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 18
- 239000007789 gas Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- 229910052815 sulfur oxide Inorganic materials 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- ODUCDPQEXGNKDN-UHFFFAOYSA-N Nitrogen oxide(NO) Natural products O=N ODUCDPQEXGNKDN-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model provides a SOx/NOx control tail gas cleanup unit, including the spray column, the spray column includes the barrel, both ends difference fixed connection left side head and right head about the barrel, be equipped with the air inlet in the middle of the left side head left end, be equipped with the gas outlet in the middle of the right side head right-hand member, be equipped with the inlet in the middle of the barrel top, be equipped with the liquid outlet in the middle of the barrel bottom, the liquid outlet is connected with the feed inlet of swirler, the slag notch and the centrifuge's of swirler feed inlet are connected, the delivery port and the feed inlet of oxidation circulation case of centrifuge are connected, centrifuge's delivery port is connected with the feed inlet of oxidation circulation case, oxidation circulation case delivery port is connected with the feed inlet of circulating pump, the liquid outlet and. The utility model discloses can be with the reuse of recovery liquid, air current and absorption liquid maldistribution, the absorption liquid is strong to sulphide and nitride capture ability, and SOx/NOx control is efficient.
Description
Technical Field
The utility model relates to a SOx/NOx control technical field, in particular to SOx/NOx control tail gas cleanup unit.
Background
China is the worldThe world with the largest energy consumption always has the dominant position of coal in the energy structure of China. As a low-grade fuel, coal is directly used for combustion to generate sulfur dioxide (SO)2) Nitrogen Oxide (NO)x) Carbon dioxide (CO)2) And dust particles and the like. The emission of a large amount of pollutants can cause environmental problems such as acid rain, photochemical smog, ozone cavities, total suspended particulate matter rising and the like, and threaten the quality of human health and ecological environment. At present, SO is generally adopted in China thermal power industry2And NOxThe method of step-by-step removal is used for controlling the emission of sulfur dioxide and nitrogen oxides, namely Wet Flue Gas Desulfurization (WFGD) combined with NH3The selective catalytic reduction denitration (SCR) technology, and the combined method can realize high pollutant removal efficiency. However, the simple series-connected desulfurization and denitrification system inevitably has the problems of large size, complexity, large floor area, high investment and operation cost and the like. Therefore, research and application of simultaneous desulfurization and denitrification technologies are receiving wide attention.
Meanwhile, the desulfurization and denitrification technologies can be classified into a dry-method simultaneous desulfurization and denitrification technology and a wet-method simultaneous desulfurization and denitrification technology according to different operating conditions. The dry-method simultaneous desulfurization and denitrification technology refers to a simultaneous sulfur and denitrification technology without using water or solution in the whole process, and the wet-method simultaneous desulfurization and denitrification technology refers to a process in which a liquid phase participates in the absorption or oxidation-absorption of sulfur oxides and nitrogen oxides in the whole process. At present, the main research direction for simultaneously desulfurizing and denitrating by a wet method is to promote the dissolution and absorption of NO by adding an additive on the basis of a flue gas wet desulfurization (FGD) device so as to meet the requirement of controlling nitrogen oxides.
The FGD spray tower is the mainstream tower type of the wet desulphurization process. In the desulfurization process, because the washing thick liquid that is close to the tower wall is less in the spray column, and the atmospheric pressure in this region is lower moreover, and the flue gas can flow to spray column wall department, and the flue gas is very easily escaped here, leads to washing thick liquid extremely poor to the sulphide entrapment ability of tower wall department, and SOx/NOx control efficiency reduces, and the recycle ratio of current wet flue gas SOx/NOx control absorbing solution is low simultaneously, leads to absorbing solution waste volume great, and manufacturing cost improves.
SUMMERY OF THE UTILITY MODEL
The not enough to prior art, the utility model provides a SOx/NOx control tail gas cleanup unit has solved current SOx/NOx control device absorption liquid tail gas and has caught inhomogeneously, leads to the problem that SOx/NOx control efficiency reduces, and the recycle ratio of absorption liquid is low, leads to the great problem of absorption liquid waste volume.
The utility model provides a desulfurization and denitrification tail gas purification device, which comprises a spray tower, a swirler, a centrifuge, an oxidation circulation box, a drying box and a circulating pump, wherein the spray tower comprises a barrel body, the barrel body is horizontally arranged, the left end and the right end of the barrel body are respectively and fixedly connected with a left end socket and a right end socket, an air inlet is arranged in the middle of the left end socket, an air outlet is arranged in the middle of the right end socket, a liquid inlet is arranged in the middle of the top of the barrel body, a liquid outlet is arranged in the middle of the bottom of the barrel body and is connected with a feed inlet of the swirler through a pipeline, a slag outlet of the swirler is connected with the feed inlet of the centrifuge through a pipeline, a water outlet of the swirler is connected with the feed inlet of the oxidation circulation box through a pipeline, a slag outlet of the centrifuge is connected with the, the liquid outlet end of the circulating pump is connected with the liquid inlet through a pipeline.
Preferably, the inside both ends fixed mounting baffle of barrel, the air vent has been seted up in the middle of the baffle, the inside even equidistance of barrel is equipped with a plurality of vertical last baffles and lower baffle, it sets up with baffle is crisscross down to go up the baffle, it installs at barrel top inner wall to go up baffle fixed mounting, baffle fixed mounting is at barrel both sides inner wall down, lower baffle bottom is equipped with the clearance with barrel bottom inner wall, a plurality of units that spray of barrel top inner wall fixed mounting, the unit setting that sprays is in baffle top down, barrel top outer wall fixed mounting feed liquor pipe, a plurality of units that spray all are connected with the feed liquor pipe, be equipped with.
Preferably, the spraying unit comprises a liquid separating plate, the top of the liquid separating plate is connected with the liquid inlet pipe through a pipeline, a plurality of spray heads are fixedly installed at the bottom of the liquid separating plate, and the spray heads are atomizing spray heads.
Preferably, the top of the oxidation circulation box is provided with a feed inlet and a dosing port, the inside of the oxidation circulation box is provided with a stirring rod, the outer wall of the oxidation circulation box is fixedly provided with a motor, and the bottom of the oxidation circulation box is provided with a water outlet.
Preferably, the demister is vertically and fixedly arranged in the right end socket.
Compared with the prior art, the utility model has the advantages that:
the utility model discloses SOx/NOx control tail gas cleanup unit includes spray column, swirler, centrifuge, oxidation circulation case, drying cabinet and circulating pump, can detach the sulfur dioxide (SO) in the tail gas through one step through the spray column2) And Nitrogen Oxides (NO)x) Impurity particles in the absorption liquid are removed through a cyclone and a centrifugal machine, and then the absorption liquid is introduced into an oxidation circulation box for recycling the recovery liquid; the utility model discloses be equipped with a plurality of last baffles in the barrel and cut apart into S type passageway with barrel inside with lower baffle, tail gas can fully contact with the absorption liquid in the barrel, has overcome traditional vertical spray column air current and absorption liquid and has distributed unevenly, leads to the absorption liquid to the problem that sulphide and nitride capture ability is poor, SOx/NOx control inefficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the spray tower of the present invention.
In the figure:
1-spray tower, 2-cyclone, 3-centrifuge, 4-oxidation circulation box, 5-drying box, 6-circulation pump, 7-cylinder, 8-left end socket, 9-right end socket, 10-air inlet, 11-air outlet, 12-liquid inlet, 13-liquid outlet, 14-baffle, 15-upper baffle, 16-lower baffle, 17-spray unit, 18-liquid inlet pipe, 19-liquid separation plate, 20-spray head, 21-demister.
Detailed Description
In order to better enable those skilled in the art to understand the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in figure 1-2, a desulfurization and denitrification tail gas purification device comprises a spray tower 1, a cyclone 2, a centrifuge 3, an oxidation circulation box 4, a drying box 5 and a circulating pump 6, wherein the spray tower 1 comprises a cylinder 7, the cylinder 7 is horizontally arranged, the left end and the right end of the cylinder 7 are respectively and fixedly connected with a left seal head 8 and a right seal head 9, an air inlet 10 is arranged in the middle of the left end of the left seal head 8, an air outlet 11 is arranged in the middle of the right end of the right seal head 9, a liquid inlet 12 is arranged in the middle of the top of the cylinder 7, a liquid outlet 13 is arranged in the middle of the bottom of the cylinder 7, the liquid outlet 13 is connected with a feed inlet of the cyclone 2 through a pipeline, a slag outlet of the cyclone 2 is connected with a feed inlet of the centrifuge 3 through a pipeline, a water outlet of the cyclone 2 is connected with a feed inlet of the oxidation circulation, the water outlet of the oxidation circulation box 4 is connected with the liquid inlet end of the circulation pump 6 through a pipeline, and the liquid outlet end of the circulation pump 6 is connected with the liquid inlet 12 through a pipeline.
Inside both ends fixed mounting baffle 14 of barrel 7, the air vent has been seted up in the middle of the baffle 14, the inside even equidistance of barrel 7 is equipped with a plurality of vertical last baffle 15 and lower baffle 16, it sets up with baffle 16 crisscross down to go up baffle 15, go up baffle 15 fixed mounting at the 7 top inner walls of barrel, 16 fixed mounting of lower baffle is at the 7 both sides inner wall of barrel, 16 bottoms of lower baffle are equipped with the clearance with the 7 bottom inner walls of barrel, a plurality of units 17 that spray of 7 top inner walls fixed mounting of barrel, spray the unit 17 setting and be in 16 tops of baffle down, 7 top outer wall fixed mounting inlet tube 18 of barrel, a plurality of units 17 that spray all are connected with feed liquor pipe 18, be equipped with.
The spraying unit 17 comprises a liquid separating plate 19, the top of the liquid separating plate 19 is connected with a liquid inlet pipe 18 through a pipeline, a plurality of spray heads 20 are fixedly installed at the bottom of the liquid separating plate 19, and the spray heads 20 are atomizing spray heads.
The top of the oxidation circulation box 4 is provided with a feed inlet and a dosing port, the inside of the oxidation circulation box 4 is provided with a stirring rod, the outer wall of the oxidation circulation box 4 is fixedly provided with a motor, and the bottom of the oxidation circulation box 4 is provided with a water outlet.
A demister 21 is vertically and fixedly arranged in the right seal head 9.
The working principle is as follows:
when the device is used for tail gas desulfurization and denitration, the circulating pump 6 is opened to convey the absorption liquid into the spray tower 1, the absorption liquid is sprayed out through the spray head 20, the absorption liquid falls into the bottom of the barrel 1 and is accumulated at the bottom of the barrel 1, the gap between the bottom end of the lower partition plate 16 and the bottom of the barrel 1 can be plugged to a certain amount, at the moment, an S-shaped tail gas spray channel is formed inside the barrel 7, and the channel contains sulfur dioxide (SO)2) And Nitrogen Oxides (NO)x) The tail gas enters the spray tower 1 from the gas inlet, flows in a channel formed by the upper partition plate 15 and the lower partition plate 16 and is fully contacted with the absorption liquid sprayed by the spray head 20, and the absorption liquid captures sulfur dioxide (SO) in the tail gas2) And Nitrogen Oxides (NO)x) The treated tail gas is discharged from a gas outlet 11 on the right seal head 9 after passing through a demister 21, a liquid outlet 13 at the bottom of the cylinder 1 is opened, the speed of liquid outlet is kept equivalent to the speed of liquid inlet, the bottom end of a lower partition plate 16 and the bottom of the cylinder 1 are always in a liquid seal state, the solid of the absorption liquid after reaction is separated by a cyclone 2 and a centrifugal machine is dried by a drying box 5, the liquid flows into an oxidation circulation box 4, an oxidation reducing agent is added into the oxidation circulation box 4, a motor is opened to drive a stirring rod to rotate and stir, the absorption agent is conveyed to a spray tower through a circulation pump after oxidation reduction reaction, and the absorption liquid is recycled.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the specific implementations of the invention. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The utility model provides a SOx/NOx control tail gas cleanup unit which characterized in that: comprises a spray tower (1), a swirler (2), a centrifuge (3), an oxidation circulation box (4), a drying box (5) and a circulation pump (6), wherein the spray tower (1) comprises a barrel body (7), the barrel body (7) is horizontally arranged, the left end and the right end of the barrel body (7) are respectively and fixedly connected with a left seal head (8) and a right seal head (9), an air inlet (10) is arranged in the middle of the left end of the left seal head (8), an air outlet (11) is arranged in the middle of the right end of the right seal head (9), a liquid inlet (12) is arranged in the middle of the top of the barrel body (7), a liquid outlet (13) is arranged in the middle of the bottom of the barrel body (7), the liquid outlet (13) is connected with a feed inlet of the swirler (2) through a pipeline, a slag outlet of the swirler (2) is connected with the feed inlet of the centrifuge, the slag outlet of the centrifuge (3) is connected with the feed inlet of the drying box (5) through a pipeline, the water outlet of the centrifuge (3) is connected with the feed inlet of the oxidation circulation box (4) through a pipeline, the water outlet of the oxidation circulation box (4) is connected with the liquid inlet end of the circulating pump (6) through a pipeline, and the liquid outlet end of the circulating pump (6) is connected with the liquid inlet (12) through a pipeline.
2. The desulfurization and denitrification exhaust gas purification device according to claim 1, characterized in that: baffles (14) are fixedly arranged at two ends of the interior of the cylinder body (7), a vent hole is formed in the middle of each baffle (14), a plurality of vertical upper partition plates (15) and lower partition plates (16) are uniformly arranged in the cylinder body (7) at equal intervals, the upper partition plates (15) and the lower partition plates (16) are arranged in a staggered manner, the upper partition plates (15) are fixedly arranged on the inner wall of the top of the cylinder body (7), the lower partition plates (16) are fixedly arranged on the inner walls of the two sides of the cylinder body (7), a gap is arranged between the bottom end of each lower partition plate (16) and the inner wall of the bottom of the cylinder body (7), a plurality of spraying units (17) are fixedly arranged on the inner wall of the top of the cylinder body (, the spray unit (17) is arranged above the lower partition plate (16), a liquid inlet pipe (18) is fixedly installed on the outer wall of the top of the barrel body (7), the spray unit (17) is connected with the liquid inlet pipe (18), and a liquid inlet (12) is arranged in the middle of the top of the liquid inlet pipe (18).
3. The desulfurization and denitrification exhaust gas purification device according to claim 2, characterized in that: spray unit (17) including dividing liquid board (19), divide liquid board (19) top to be connected with feed liquor pipe (18) through the pipeline, divide liquid board (19) bottom fixed mounting a plurality of shower nozzles (20), shower nozzle (20) are atomizer.
4. The desulfurization and denitrification exhaust gas purification device according to claim 1, characterized in that: the top of the oxidation circulation box (4) is provided with a feed inlet and a dosing port, a stirring rod is arranged inside the oxidation circulation box (4), the outer wall of the oxidation circulation box (4) is fixedly provided with a motor, and the bottom of the oxidation circulation box (4) is provided with a water outlet.
5. The desulfurization and denitrification exhaust gas purification device according to claim 1, characterized in that: and a demister (21) is vertically and fixedly arranged in the right seal head (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922063554.7U CN211659691U (en) | 2019-11-26 | 2019-11-26 | Desulfurization and denitrification tail gas purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922063554.7U CN211659691U (en) | 2019-11-26 | 2019-11-26 | Desulfurization and denitrification tail gas purification device |
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| Publication Number | Publication Date |
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| CN211659691U true CN211659691U (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922063554.7U Expired - Fee Related CN211659691U (en) | 2019-11-26 | 2019-11-26 | Desulfurization and denitrification tail gas purification device |
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| CN (1) | CN211659691U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495108A (en) * | 2020-11-30 | 2021-03-16 | 江苏新中金环保科技股份有限公司 | A dust removal defogging device for SOx/NOx control system |
| CN112717600A (en) * | 2020-12-23 | 2021-04-30 | 李艺 | Rotary disc and spray head combined repeated high-speed collision centrifugal tail gas purifying device |
| CN115364602A (en) * | 2022-07-28 | 2022-11-22 | 陕西彩虹工业智能科技有限公司 | Dust collection box and method for TFT glass kiln flue gas treatment |
| CN117695815A (en) * | 2024-02-05 | 2024-03-15 | 长盛(廊坊)科技有限公司 | PAN-based carbon fiber polymerization liquid single-removal tail gas treatment device and control method |
-
2019
- 2019-11-26 CN CN201922063554.7U patent/CN211659691U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495108A (en) * | 2020-11-30 | 2021-03-16 | 江苏新中金环保科技股份有限公司 | A dust removal defogging device for SOx/NOx control system |
| CN112717600A (en) * | 2020-12-23 | 2021-04-30 | 李艺 | Rotary disc and spray head combined repeated high-speed collision centrifugal tail gas purifying device |
| CN115364602A (en) * | 2022-07-28 | 2022-11-22 | 陕西彩虹工业智能科技有限公司 | Dust collection box and method for TFT glass kiln flue gas treatment |
| CN117695815A (en) * | 2024-02-05 | 2024-03-15 | 长盛(廊坊)科技有限公司 | PAN-based carbon fiber polymerization liquid single-removal tail gas treatment device and control method |
| CN117695815B (en) * | 2024-02-05 | 2024-04-16 | 长盛(廊坊)科技有限公司 | PAN-based carbon fiber polymerization liquid single-removal tail gas treatment device and control method |
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