CN105498527A - Device for deep purification of smoke - Google Patents
Device for deep purification of smoke Download PDFInfo
- Publication number
- CN105498527A CN105498527A CN201610003971.0A CN201610003971A CN105498527A CN 105498527 A CN105498527 A CN 105498527A CN 201610003971 A CN201610003971 A CN 201610003971A CN 105498527 A CN105498527 A CN 105498527A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- deep cleaning
- gas device
- rotating shaft
- cylindrical shell
- 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.)
- Pending
Links
- 238000000746 purification Methods 0.000 title abstract description 8
- 239000000779 smoke Substances 0.000 title abstract description 5
- 239000011941 photocatalyst Substances 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims abstract description 10
- 239000003546 flue gas Substances 0.000 claims description 50
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 49
- 238000004140 cleaning Methods 0.000 claims description 40
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 7
- 239000000443 aerosol Substances 0.000 abstract description 6
- 238000006477 desulfuration reaction Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229910010413 TiO 2 Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B01D53/86—Catalytic processes
- B01D53/8637—Simultaneously removing sulfur oxides and nitrogen oxides
-
- 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
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a device for deep purification of smoke. The device comprises a cylinder body with the inner wall coated with a photocatalyst substance, a light source arranged in the cylinder body and used for exciting the photocatalyst substance, and a rotational flow generating mechanism used for making smoke entering the cylinder body transformed into rotational flow, wherein the rotational flow generating mechanism is fixed in the cylinder body through a fixing structure. By the adoption of the device, tiny particles including SO2, NOX, NH3 and PM2.5 aerosol in smoke generated after dehumidificating desulfuration can be effectively removed, system energy consumption is low, operation cost is low, the structure is simple, operation and maintenance are easy, system reliability is high, and purification efficiency is high.
Description
Technical field
The present invention relates to flue gases purification field.More specifically, relate to a kind of for the flue gas device for deep cleaning after wet desulphurization, be applicable to the flue gas advanced purification technology of the industries such as fire coal, fuel oil, combustion gas thermal power plant, metallurgy, chemical industry, solid waste (rubbish) process.
Background technology
At present, domestic flue gas or industrial tail gas pollutant abatement technology more, wherein comparative maturity, representative technology have: administer sulfur dioxide (SO
2) Wet Flue Gas Desulfurization Technique such as limestone-gypsum method, ammonia process, Dual alkali that pollutes, but still there is the SO failing to remove completely in neat stress after these wet desulphurizations
2, NO
x, NH
3and PM2.5 aerosol etc., be difficult to reach new environmental requirement.
Therefore, wet desulphurization device rear end all needs to install Wet type electric dust-removing device additional and carries out further gas cleaning, to meet more and more strict environmental requirement.
For prior art Problems existing, special proposition the present invention.
Summary of the invention
The object of the present invention is to provide a kind of flue gas device for deep cleaning, this device can improve gas cleaning efficiency, plant energy consumption is low, operating cost is low, safeguard simple, simple for structure, reliability is high.
Another object of the present invention is to provide a kind of wet desulphurization device containing described flue gas device for deep cleaning.
For achieving the above object, the present invention adopts following technical proposals:
A kind of flue gas device for deep cleaning, comprising:
Inwall is coated with the cylindrical shell of photocatalyst substance;
Be located at the top of cylindrical shell for exciting the ultraviolet source of described photocatalyst substance;
One or more layers blade be located at the rotating shaft on the central axis of barrel lenght direction and be fixedly arranged on described rotating shaft.
Further, the length of described rotating shaft is the 1/3-1/2 of barrel lenght.
Further, described rotating shaft is fixed by the flange being located at cylinder body bottom, and the diameter of described flange is the 1/5-1/2 of described barrel diameter.
Further, described blade has angle of inclination relative to the radial section of cylindrical shell.
Further, described blade pitch angle is 20 °-60 °.
Further, the upper strata blade in described multiple layers of vanes structure and lower leave are 1-50% relative to the orthographic projection Duplication of cylindrical shell radial section.
Further, described device also comprises the flooding nozzle be located on described rotating shaft.
A kind of wet desulphurization device containing described flue gas device for deep cleaning, comprise the gas approach be set in turn in absorption tower, spraying layer, demister, clean flue from bottom to top, it is characterized in that: also comprise at least one the flue gas device for deep cleaning be located between demister and clean flue, described flue gas device for deep cleaning is fixed by the bracing or strutting arrangement being installed in absorption tower inwall.
Further, described flue gas device for deep cleaning is fixedly arranged on the brace summer of inside, absorption tower, and is uniformly distributed in 1-3 rice above demister.
Beneficial effect of the present invention is as follows:
1, flue gas device for deep cleaning SR of the present invention is low.
2, to SO residual in wet desulfurization flue gas
2, NO
x, NH
3and the purification efficiency such as PM2.5 aerosol is high.SO after effectively can removing wet desulphurization by this device in flue gas
2, NO
x, NH
3and the finely ground particles such as PM2.5 aerosol.
3, system energy consumption is low, and operating cost is low, simple for structure, and operation maintenance is simple, and system reliability is high.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 illustrates the wet desulphurization device absorption tower vertical section structure schematic diagram having installed flue gas device for deep cleaning additional;
Fig. 2 illustrates the vertical section structure schematic diagram of flue gas device for deep cleaning;
Fig. 3 illustrates the top view of flue gas device for deep cleaning;
Fig. 4 illustrates the vertical section structure schematic diagram of multiple flue gas device for deep cleaning distribution in absorption tower;
Fig. 5 illustrates the top view of multiple flue gas device for deep cleaning distribution in absorption tower.
In figure: 1-absorption tower; 2-gas approach; 3-spraying layer; 4-demister; 5-flue gas device for deep cleaning; The clean flue of 6-; 7-flange; 8-rotating shaft; 9-blade; 10-flooding nozzle; 11-ultraviolet lamp tube.
Detailed description of the invention
In order to be illustrated more clearly in the present invention, below in conjunction with preferred embodiments and drawings, the present invention is described further.
As shown in Figure 1, on the basis of existing wet method flue gas-desulfurizing absorption tower, set up flue gas device for deep cleaning 5 of the present invention, absorption tower 1 in the present invention is disposed with gas approach 2 from the bottom up, spraying layer 3, demister 4, flue gas device for deep cleaning 5 and clean flue 6, flue gas device for deep cleaning 5 is arranged between demister 4 and clean flue 6; Preferred flue gas device for deep cleaning 5 is arranged on about 1-3 rice above demister 4; In order to abundant purifying smoke and raising purification efficiency, as shown in Figure 4 and Figure 5, above demister 4, be uniformly distributed several flue gas device for deep cleaning 5; Flue gas device for deep cleaning 5 carries out support by the brace summer on the inwall of absorption tower 1 to be fixed.
As shown in Figures 2 and 3, flue gas device for deep cleaning 5 is tube structure, and the inwall of cylindrical shell is coated with photocatalyst substance, and the top of cylindrical shell is provided with the ultraviolet source 11 exciting described photocatalyst substance; Rotating shaft 8 is arranged on the central axis of barrel lenght direction, and the length of described rotating shaft 8 is the 1/3-1/2 of barrel lenght, and rotating shaft 8 is fixed by the flange 7 being located at cylinder body bottom, and the diameter of described flange 7 is the 1/5-1/2 of described barrel diameter; Rotating shaft 8 is provided with one or more layers blade 9; Described blade 9 has angle of inclination relative to the radial section of cylindrical shell; Angle of inclination is 20 °-60 °; Establish one or more layers blade in cylindrical shell, arrange the blade 9 of multilayer, then the blade on upper strata and the blade 9 of lower floor are 1-50% relative to the orthographic projection Duplication of cylindrical shell radial section; The material of blade 9 is selected from acid-resistant stainless steel, adds the carbon steel, fiberglass, PP or PVC that are coated with glass flake anticorrosive coat, is also provided with flooding nozzle 10 on rotating shaft 8.
When flue gas is by flue gas device for deep cleaning 5, flue gas is changed direction by blade 9, and scribbles photocatalyst substance TiO
2the wall of cylindrical shell fully repeatedly contact; SO in flue gas
2, NO
x, NH
3be adsorbed to the wall surface of cylindrical shell, with the TiO of wall surface being coated in cylindrical shell
2contact, under the irradiation of ultraviolet light, TiO
2absorb from the photon energy of ultraviolet radiation, discharge hole and electronics and produce free radical with oxygen and water molecule reaction and by the SO adsorbed
2, NO
x, NH
3reaction generates NO
2 -, SO
4 -; The NO that reaction generates
2 -, SO
4 -be stored in reaction base table, N
2be released out; Reach and remove SO
2, NO
x, NH
3object; TiO
2photocatalytic effect can circulate, therefore can not be consumed in course of reaction.
Purification efficiency depends on that namely can flue gas device for deep cleaning structure make flue gas fully contact with photocatalyst.Therefore, flue gas device for deep cleaning is designed to tube structure, and inside the wall of cylindrical shell, apply photocatalyst, body centre adds ultraviolet source, adds N layer air guide blade in cylindrical shell.When making flue gas enter cartridge type purifier, the air guide effect of the kinetic energy of flue gas and blade 9 is utilized to make flue gas form eddy flow in cylindrical shell, fully contact with the photocatalyst that the wall of cylindrical shell applies, simultaneously, the reunion that collides with each other of the finely ground particles such as the fine drop in flue gas, fine solid particle particle, aerosol is condensed into large drop, large drop is caught by the wall surface liquid film of cylindrical shell again, and the wall stream that large drop is formed will adhere to photocatalyst surface and generate NO
2 -, SO
4 -and fine drop, fine solid particle particle, aerosol etc. wash, thus reach the object in gas cleaning.
Obviously; the above embodiment of the present invention is only for example of the present invention is clearly described; and be not the restriction to embodiments of the present invention; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here cannot give exhaustive to all embodiments, every belong to technical scheme of the present invention the apparent change of extending out or variation be still in the row of protection scope of the present invention.
Claims (9)
1. a flue gas device for deep cleaning, is characterized in that: this device comprises
Inwall is coated with the cylindrical shell of photocatalyst substance;
Be located at the top of cylindrical shell for exciting the ultraviolet source of described photocatalyst substance;
One or more layers blade be located at the rotating shaft on the central axis of barrel lenght direction and be fixedly arranged on described rotating shaft.
2. flue gas device for deep cleaning according to claim 1, is characterized in that: the length of described rotating shaft is the 1/3-1/2 of barrel lenght.
3. flue gas device for deep cleaning according to claim 1, is characterized in that: described rotating shaft is fixed by the flange being located at cylinder body bottom, the diameter of described flange is the 1/5-1/2 of described barrel diameter.
4. flue gas device for deep cleaning according to claim 1, is characterized in that: described blade has angle of inclination relative to the radial section of cylindrical shell.
5. flue gas device for deep cleaning according to claim 4, is characterized in that: described blade pitch angle is 20 °-60 °.
6. flue gas device for deep cleaning according to claim 1, is characterized in that: the upper strata blade in described multiple layers of vanes structure and lower leave are 1-50% relative to the orthographic projection Duplication of cylindrical shell radial section.
7. flue gas device for deep cleaning according to claim 1, is characterized in that: described device also comprises the flooding nozzle be located on described rotating shaft.
8. the wet desulphurization device containing flue gas device for deep cleaning according to claim 1, comprise the gas approach be set in turn in absorption tower, spraying layer, demister, clean flue from bottom to top, it is characterized in that: also comprise at least one the flue gas device for deep cleaning be located between demister and clean flue, described flue gas device for deep cleaning is fixed by the bracing or strutting arrangement being installed in absorption tower inwall.
9. wet desulphurization device according to claim 8, is characterized in that: described flue gas device for deep cleaning is fixedly arranged on the brace summer of inside, absorption tower, and is uniformly distributed in 1-3 rice above demister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610003971.0A CN105498527A (en) | 2016-01-04 | 2016-01-04 | Device for deep purification of smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610003971.0A CN105498527A (en) | 2016-01-04 | 2016-01-04 | Device for deep purification of smoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105498527A true CN105498527A (en) | 2016-04-20 |
Family
ID=55707060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610003971.0A Pending CN105498527A (en) | 2016-01-04 | 2016-01-04 | Device for deep purification of smoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105498527A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771600A (en) * | 2016-04-12 | 2016-07-20 | 刘杨先 | Method and device for integrally removing multiple pollutants in tail gas through plant ash seriflux |
| CN106237799A (en) * | 2016-09-30 | 2016-12-21 | 江苏绿叶环境工程集团有限公司 | A kind of flue gas desulphurization system |
| CN106474921A (en) * | 2016-12-03 | 2017-03-08 | 福建众辉环保设备有限公司 | A kind of waste gas cleaning system |
| CN107158945A (en) * | 2017-07-20 | 2017-09-15 | 重庆阳正环保科技股份有限公司 | VOC cleaning system and its purification method in a kind of removal industrial waste gas |
| CN113773883A (en) * | 2021-09-08 | 2021-12-10 | 新兴铸管股份有限公司 | Turbulent flow device for inlet pipeline of desulfurization conversion tower |
| CN115253649A (en) * | 2022-07-12 | 2022-11-01 | 关兔 | Flue gas denitration and desulfurization washing device and denitration and desulfurization method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201658921U (en) * | 2009-11-20 | 2010-12-01 | 中国石油化工股份有限公司 | Gas cleaning and filtering device |
| CN202621016U (en) * | 2012-06-22 | 2012-12-26 | 天津市绿净源环保科技有限公司 | Novel acid gas treatment device |
| JP5142549B2 (en) * | 2007-02-15 | 2013-02-13 | 株式会社日立製作所 | Smoke removal system |
| CN204320099U (en) * | 2014-12-03 | 2015-05-13 | 田鹏程 | A kind of flue gas device for deep cleaning |
| CN104888600A (en) * | 2015-06-18 | 2015-09-09 | 田鹏程 | Dual-cyclone dust removal and desulfurization multiplier for wet flue gas desulfurization absorption tower |
| CN104906949A (en) * | 2015-06-18 | 2015-09-16 | 田鹏程 | Device for deep purification of wet desulphurization absorption towersmoke |
-
2016
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5142549B2 (en) * | 2007-02-15 | 2013-02-13 | 株式会社日立製作所 | Smoke removal system |
| CN201658921U (en) * | 2009-11-20 | 2010-12-01 | 中国石油化工股份有限公司 | Gas cleaning and filtering device |
| CN202621016U (en) * | 2012-06-22 | 2012-12-26 | 天津市绿净源环保科技有限公司 | Novel acid gas treatment device |
| CN204320099U (en) * | 2014-12-03 | 2015-05-13 | 田鹏程 | A kind of flue gas device for deep cleaning |
| CN104888600A (en) * | 2015-06-18 | 2015-09-09 | 田鹏程 | Dual-cyclone dust removal and desulfurization multiplier for wet flue gas desulfurization absorption tower |
| CN104906949A (en) * | 2015-06-18 | 2015-09-16 | 田鹏程 | Device for deep purification of wet desulphurization absorption towersmoke |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105771600A (en) * | 2016-04-12 | 2016-07-20 | 刘杨先 | Method and device for integrally removing multiple pollutants in tail gas through plant ash seriflux |
| CN105771600B (en) * | 2016-04-12 | 2018-09-14 | 刘杨先 | The method and device that plant ash slurries remove multi-pollutant integration in tail gas |
| CN106237799A (en) * | 2016-09-30 | 2016-12-21 | 江苏绿叶环境工程集团有限公司 | A kind of flue gas desulphurization system |
| CN106237799B (en) * | 2016-09-30 | 2020-02-14 | 江苏绿叶环境工程集团有限公司 | Flue gas desulfurization system |
| CN106474921A (en) * | 2016-12-03 | 2017-03-08 | 福建众辉环保设备有限公司 | A kind of waste gas cleaning system |
| CN107158945A (en) * | 2017-07-20 | 2017-09-15 | 重庆阳正环保科技股份有限公司 | VOC cleaning system and its purification method in a kind of removal industrial waste gas |
| CN113773883A (en) * | 2021-09-08 | 2021-12-10 | 新兴铸管股份有限公司 | Turbulent flow device for inlet pipeline of desulfurization conversion tower |
| CN115253649A (en) * | 2022-07-12 | 2022-11-01 | 关兔 | Flue gas denitration and desulfurization washing device and denitration and desulfurization method |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160420 |