CN115155192A - A purify discharging equipment for flue gas desulfurization denitration - Google Patents
A purify discharging equipment for flue gas desulfurization denitration Download PDFInfo
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- CN115155192A CN115155192A CN202210815386.6A CN202210815386A CN115155192A CN 115155192 A CN115155192 A CN 115155192A CN 202210815386 A CN202210815386 A CN 202210815386A CN 115155192 A CN115155192 A CN 115155192A
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- desulfurization
- parts
- denitrification
- pipe
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 87
- 230000023556 desulfurization Effects 0.000 title claims abstract description 87
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000003546 flue gas Substances 0.000 title claims abstract description 22
- 238000007599 discharging Methods 0.000 title claims description 3
- 238000001514 detection method Methods 0.000 claims abstract description 47
- 238000001035 drying Methods 0.000 claims abstract description 38
- 238000001914 filtration Methods 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 238000000746 purification Methods 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 22
- 238000005192 partition Methods 0.000 claims description 21
- 239000007921 spray Substances 0.000 claims description 14
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000008187 granular material Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 7
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- 239000004202 carbamide Substances 0.000 claims description 6
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims description 6
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 6
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 239000002918 waste heat Substances 0.000 claims description 6
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 6
- JVXHQHGWBAHSSF-UHFFFAOYSA-L 2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate;hydron;iron(2+) Chemical compound [H+].[H+].[Fe+2].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O JVXHQHGWBAHSSF-UHFFFAOYSA-L 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 5
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910000365 copper sulfate Inorganic materials 0.000 claims description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 4
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims description 3
- 239000005695 Ammonium acetate Substances 0.000 claims description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 3
- 239000005751 Copper oxide Substances 0.000 claims description 3
- -1 alkyl glyceryl ether Chemical compound 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 229940043376 ammonium acetate Drugs 0.000 claims description 3
- 235000019257 ammonium acetate Nutrition 0.000 claims description 3
- 235000019270 ammonium chloride Nutrition 0.000 claims description 3
- VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 claims description 3
- 229960000892 attapulgite Drugs 0.000 claims description 3
- RCMWGBKVFBTLCW-UHFFFAOYSA-N barium(2+);dioxido(dioxo)molybdenum Chemical compound [Ba+2].[O-][Mo]([O-])(=O)=O RCMWGBKVFBTLCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- 235000012255 calcium oxide Nutrition 0.000 claims description 3
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- 229910000361 cobalt sulfate Inorganic materials 0.000 claims description 3
- 229940044175 cobalt sulfate Drugs 0.000 claims description 3
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 claims description 3
- 229910000431 copper oxide Inorganic materials 0.000 claims description 3
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
- UQYMPAFTBYDYCN-UHFFFAOYSA-N n'-[2-(dioctadecylamino)ethyl]ethane-1,2-diamine Chemical compound CCCCCCCCCCCCCCCCCCN(CCNCCN)CCCCCCCCCCCCCCCCCC UQYMPAFTBYDYCN-UHFFFAOYSA-N 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 3
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052625 palygorskite Inorganic materials 0.000 claims description 3
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 3
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 3
- 229960001763 zinc sulfate Drugs 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000004094 surface-active agent Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 8
- 238000002485 combustion reaction Methods 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 7
- 238000007667 floating Methods 0.000 abstract description 6
- 238000001179 sorption measurement Methods 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 8
- 239000010815 organic waste Substances 0.000 description 6
- 238000003795 desorption Methods 0.000 description 5
- 239000003208 petroleum Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000007084 catalytic combustion reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
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- 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
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- 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
- 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
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- 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
- B01D53/30—Controlling by gas-analysis apparatus
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- 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
Abstract
The invention discloses a purification and discharge device for desulfurization and denitrification of flue gas, and relates to the technical field of flue gas treatment. The device comprises a filtering device, a desulfurization and denitrification reaction device, a drying device and a first detection device; the first detection device is provided with two outlet ends, one outlet end is directly communicated with the exhaust device, the other outlet end is communicated with the secondary treatment device through a pipeline A, and the outlet of the secondary treatment device is communicated with a second detection device; the pipeline A between the one-way valve and the secondary treatment device is communicated with an air return pipe, one end of the air return pipe is communicated with one air outlet of the second detection device, the other air outlet of the second detection device is communicated with an exhaust pipe, and the exhaust pipe is communicated with the exhaust device. According to the invention, high-temperature industrial flue gas is introduced into the filtering device, and the filtering device is utilized to filter and adsorb oily particle floating dust impurities generated by fossil energy combustion.
Description
Technical Field
The invention belongs to the technical field of flue gas treatment, and particularly relates to a purification and discharge device for flue gas desulfurization and denitrification.
Background
Industrial waste gases are an important source of atmospheric pollutants; the organic waste gas is mainly from waste gas discharged in the production process of petroleum and chemical industry, and is characterized by large quantity, large fluctuation of organic matter content, combustibility, certain toxicity, and malodor in some cases, and the discharge of chlorofluorocarbon can also cause the destruction of ozone layer. Storage facilities for petroleum and chemical plants and petrochemical products, printing and other industries related to petroleum and chemical industry, places and combustion equipment using petroleum and petrochemical products, and various vehicles using petroleum products as fuel are sources of organic waste gas.
As fossil energy such as petroleum burns, organic waste gas is generated, and gases such as particle floating dust impurities and carbon dioxide are also generated; conventionally, for example, CN112156612A discloses an organic waste gas treatment system based on fossil energy combustion. This organic waste gas treatment system includes two at least parallelly connected active carbon adsorption casees, the bottom of active carbon adsorption case is provided with first admission line, be provided with the A valve on the first admission line, the top of active carbon adsorption case is connected with the adsorption fan through purifying the pipeline, purifying the pipeline is provided with the B valve, the top of active carbon adsorption case is connected with catalytic combustion equipment through desorption pipeline, be provided with the C valve on the desorption pipeline, catalytic combustion equipment is connected with desorption fan, desorption fan is connected to active carbon adsorption bottom of the case portion through hot-blast main, the last D valve that is provided with of hot-blast main, be provided with the tonifying qi pipeline between D valve and the desorption fan, the top of active carbon adsorption case still is provided with the second admission line, be provided with the E valve on the second admission line, second admission line negative pressure is higher than first admission line. When the device is used, the activated carbon adsorption box is adopted for adsorption, the device is used for a long time, and floating dust impurities such as oily particles are adsorbed by the activated carbon, so that the activated carbon in the activated carbon adsorption box needs to be frequently replaced, and the cost is high; and the use of the activated carbon adsorbing the organic waste gas also has the problem of inconvenient treatment.
Disclosure of Invention
The invention aims to provide a purification and discharge device for flue gas desulfurization and denitration, which is characterized in that high-temperature industrial flue gas is introduced into a filtering device, and the filtering device is used for filtering and adsorbing oily particle floating dust impurities generated by fossil energy combustion, so that the problem that the cost is high because active carbon in an active carbon adsorption box needs to be frequently replaced in the prior art is solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a purification and discharge device for desulfurization and denitrification of flue gas, which comprises a filtering device, a desulfurization and denitrification reaction device, a drying device and a first detection device, wherein the filtering device is connected with the first detection device; the first detection device is provided with two outlet ends, one outlet end is directly communicated with the exhaust device, the other outlet end is communicated with the secondary treatment device through a pipeline A, and the outlet of the secondary treatment device is communicated with a second detection device; a check valve is arranged on the pipeline A, an air return pipe is communicated with the pipeline A between the check valve and the secondary treatment device, one end of the air return pipe is communicated with one air outlet of the second detection device, the other air outlet of the second detection device is communicated with an exhaust pipe, the exhaust pipe is communicated with the exhaust device, and a valve C is arranged on the exhaust pipe; the air return pipe is provided with a valve A; and the valve A, the valve C, the first detection device and the second detection device are all connected with a processing module.
Furthermore, filter equipment includes the box, the bottom and the top of box communicate respectively and are provided with intake pipe A and outlet duct A, are located inside the box between intake pipe A and the outlet duct A is provided with porous partition plate, porous partition plate upper berth is equipped with first stone layer, saw dust layer and second stone layer.
Furthermore, an annular water replenishing spray pipe is arranged in the box body right above the porous partition plate, and a spray head is arranged on the water replenishing spray pipe; a raindrop sensor is arranged under the porous partition plate, and the water replenishing spray pipe is communicated with a water replenishing pipe provided with a valve B; and the raindrop sensor and the valve B are both connected with the processing module.
Further, the desulfurization and denitrification reaction device comprises a closed device body, two vertical partition plates are arranged in the device body in parallel, and a desulfurization and denitrification cavity A, a desulfurization and denitrification cavity B and a drying cavity are formed by the partition plates in a separating manner; the desulfurization and denitrification cavity A is filled with desulfurization and denitrification granules; a desulfurization and denitrification solution is filled into the desulfurization and denitrification cavity B; the drying cavity is filled with drying particles; the bottom of the device body is also provided with an air inlet pipe B and an air outlet pipe B which are communicated with the desulfurization and denitrification cavity A and the drying cavity respectively; a first pipe penetrates through a partition plate between the desulfurization and denitrification cavity A and the desulfurization and denitrification cavity B, the air inlet end of the first pipe is positioned at the top of the desulfurization and denitrification cavity A and is higher than the liquid level of a desulfurization and denitrification solution, and the air outlet end of the first pipe extends to the bottom of the desulfurization and denitrification cavity B; run through on the baffle between SOx/NOx control chamber B and the drying chamber and be provided with the second pipe, the inlet end of second pipe is located SOx/NOx control chamber B top, and exceeds SOx/NOx control solution liquid level, the end of giving vent to anger of second pipe extends to the bottom in drying chamber.
Further, the desulfurization and denitrification granules are prepared from the following raw materials in parts by weight: 2-7 parts of sodium carbonate, 1-3 parts of aluminum oxide, 2-8 parts of aluminum hydroxide, 2-5 parts of ferric trichloride, 2-6 parts of ferric oxide, 3-10 parts of potassium permanganate, 3-10 parts of potassium chlorate, 10-35 parts of active attapulgite clay, 15-30 parts of urea, 2-4 parts of ammonium formate, 2-4 parts of ammonium chloride, 6-23 parts of ammonium acetate, 3-9 parts of manganese oxide, 9-12 parts of copper chloride, 1-3 parts of copper oxide, 2-4 parts of zinc sulfate, 1-3 parts of zinc nitrate, 7-18 parts of potassium dichromate, 1.0-1.5 parts of titanium dioxide, 0.5-1.0 part of barium molybdate, 0.5-1.5 parts of cobalt sulfate, 0.5-1.5 parts of vanadium pentoxide, 0.3-0.7 part of cerium oxide, 0.1-0.2 part of sodium dodecyl benzene sulfonate and 0.1-0.2 part of alkyl glyceryl ether sulfonate; the dry particles are quicklime particles or activated carbon particles.
Further, the desulfurization and denitrification solution is dimethyl sulfoxide solution; or mixing 40-50 parts of urea, 60-80 parts of sodium carbonate, 0.2-0.8 part of EDTA iron, 0.2-0.8 part of absorption aid and 0.5-0.8 part of distearyl diethylenetriamine; the total weight of EDTA iron, absorption aid and surfactant is more than 1.2 weight parts, deionized water 700-900 weight parts is added, the mixture is stirred evenly, a proper amount of sodium hydroxide is added, and the pH value is adjusted to 10-12.
Further, the drying device comprises a drying box, the bottom of the drying box is provided with an air inlet, the top of the drying box is provided with an air outlet, and the drying box is filled with dry particles; the air outlet is a transparent column body, and anhydrous copper sulfate is filled in the transparent column body.
Further, the secondary treatment device and the desulfurization and denitrification reaction device have the same structure; the second detection device and the first detection device have the same structure; the first detection device comprises a bin body, and a detection sensor is arranged in the bin body; NO detected by the detection sensor X Concentration and SO 2 And (4) concentration.
Further, a waste heat recovery device is arranged between the desulfurization and denitrification reaction device and the filtering device.
The invention has the following beneficial effects:
according to the invention, high-temperature industrial flue gas is introduced into the filtering device, and the filtering device is utilized to filter and adsorb oily particle floating dust impurities generated by fossil energy combustion; meanwhile, the flue gas is removed and then subjected to desulfurization and denitrification, so that the consumption of the desulfurization and denitrification liquid in the desulfurization and denitrification process is reduced, and the treatment efficiency of the desulfurization and denitrification liquid is synchronously improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
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 the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of a purification and discharge device according to the present invention;
FIG. 2 is a schematic view of the structure of the filtering apparatus of the present invention;
FIG. 3 is a schematic structural diagram of a desulfurization and denitrification reaction device according to the present invention.
Detailed Description
Referring to fig. 1, a clean-up exhaust device for desulfurization and denitrification of flue gas;
during use, flue gas generated by combustion of fossil fuel enters the filtering device 1 and is filtered in the filtering device 1, oily particle floating dust impurities generated by combustion of fossil energy are absorbed and filtered, tail gas without solid impurity particles generated after filtering enters the desulfurization and denitrification reaction device 2 to perform desulfurization and denitrification reaction, then enters the drying device 3 to be dried, and then is introduced into the first detection device 4 to detect the treatment condition, if the treatment is finished, the tail gas is directly discharged through the exhaust device 7, otherwise, the tail gas is introduced into the secondary treatment device 5 to perform secondary treatment; the treated gas is introduced into a second detection device 6, the treatment condition is detected at the moment, if the treatment is finished, the treated gas is directly discharged through an exhaust device 7, otherwise, the treated gas is introduced into a secondary treatment device 5 through a gas return pipe 43 for treatment again until the detection shows that the treatment is finished and the treated gas is discharged through the exhaust device 7;
the purification and discharge device comprises a filtering device 1, a desulfurization and denitrification reaction device 2, a drying device 3 and a first detection device 4; the first detection device 4 is provided with two outlet ends, one outlet end is directly communicated with the exhaust device 7, the other outlet end is communicated with the secondary treatment device 5 through a pipeline A41, and the outlet of the secondary treatment device 5 is communicated with a second detection device 6; a one-way valve 42 is arranged on the pipeline A41, an air return pipe 43 is communicated with the pipeline A41 between the one-way valve 42 and the secondary treatment device 5, one end of the air return pipe 43 is communicated with one air outlet of the second detection device 6, the other air outlet of the second detection device 6 is communicated with an exhaust pipe 61, the exhaust pipe 61 is communicated with the exhaust device 7, and a valve C62 is arranged on the exhaust pipe 61; the air return pipe 43 is provided with a valve A44; the valve A44, the valve C62, the first detection device 4 and the second detection device 6 are all connected with a processing module;
in the above, the first detection device 4 and the second detection device 6 acquire the detection parameters, and the processing module controls the opening and closing of the valve a44 and the valve C62.
The filtering device 1 comprises a box body 10, wherein the bottom and the top of the box body 10 are respectively provided with an air inlet pipe A11 and an air outlet pipe A12 in a communication mode, a porous partition plate 13 is arranged inside the box body and positioned between the air inlet pipe A11 and the air outlet pipe A12, and a first stone layer 131, a sawdust layer 132 and a second stone layer 133 are paved on the porous partition plate 13; an annular water replenishing spray pipe 14 is arranged in the box body 10 right above the porous partition plate 13, and a spray head is arranged on the water replenishing spray pipe 14; a raindrop sensor is arranged under the porous partition plate 13, and a water replenishing spray pipe 14 is communicated with a water replenishing pipe provided with a valve B; and the raindrop sensor and the valve B are connected with the processing module.
Clear water is sprayed into the sawdust layer 132 and the like through the water replenishing spray pipe 14, so that the sawdust layer 132 is always in a wet state;
detecting whether water drops fall from the first stone layer 131 through a raindrop sensor; if the water drops fall, the valve B is opened to spray water, and if the water drops fall, the valve B is closed to stop spraying water.
The desulfurization and denitrification reaction device 2 comprises a closed device body 20, two vertical partition plates 21 are arranged in the device body 20 in parallel and are separated by the partition plates 21 to form a desulfurization and denitrification cavity A22, a desulfurization and denitrification cavity B23 and a drying cavity 24; the desulfurization and denitrification cavity A22 is filled with desulfurization and denitrification granules; a desulfurization and denitrification solution is filled into the desulfurization and denitrification cavity B23; the drying cavity 24 is filled with drying particles; the bottom of the device body 20 is also respectively provided with an air inlet pipe B201 and an air outlet pipe B202 which are communicated with the desulfurization and denitrification cavity A22 and the drying cavity 24; a first pipe 25 penetrates through the partition plate 21 between the desulfurization and denitrification cavity A22 and the desulfurization and denitrification cavity B23, the air inlet end of the first pipe 25 is positioned at the top of the desulfurization and denitrification cavity A22 and is higher than the liquid level of the desulfurization and denitrification solution, and the air outlet end of the first pipe 25 extends to the bottom of the desulfurization and denitrification cavity B23; run through on the baffle 21 between SOx/NOx control chamber B23 and the dry chamber 24 and be provided with second pipe 26, the inlet end of second pipe 26 is located SOx/NOx control chamber B23 top, and exceeds SOx/NOx control solution liquid level, and the end of giving vent to anger of second pipe 26 extends to the bottom in dry chamber 24.
The tail gas without solid impurity particles generated after filtration enters a desulfurization and denitrification cavity A22 of the desulfurization and denitrification reaction device 2, first desulfurization and denitrification treatment is carried out under the action of the desulfurization and denitrification granules, then the gas enters a desulfurization and denitrification cavity B23, and second desulfurization and denitrification treatment is carried out under the action of a desulfurization and denitrification solution; and then passed into the drying chamber 24 for drying.
The desulfurization and denitrification granules are composed of the following raw materials in parts by weight of desulfurization and denitrification solution: 5 parts of sodium carbonate, 2 parts of aluminum oxide, 5 parts of aluminum hydroxide, 3 parts of ferric trichloride, 3 parts of ferric oxide, 8 parts of potassium permanganate, 8 parts of potassium chlorate, 20 parts of active attapulgite clay, 20 parts of urea, 3 parts of ammonium formate, 3 parts of ammonium chloride, 18 parts of ammonium acetate, 6 parts of manganese oxide, 10 parts of copper chloride, 2 parts of copper oxide, 23 parts of zinc sulfate, 2 parts of zinc nitrate, 12 parts of potassium dichromate, 1.2 parts of titanium dioxide, 1.0 part of barium molybdate, 1.5 parts of cobalt sulfate, 1.5 parts of vanadium pentoxide, 0.3 part of cerium oxide, 0.1 part of sodium dodecyl benzene sulfonate and 0.1 part of alkyl glyceryl ether sulfonate; the dry granules are quicklime granules.
45 parts of urea, 70 parts of sodium carbonate, 0.5 part of EDTA iron, 0.25 part of an absorption aid and 0.5 part of distearyl diethylenetriamine are mixed to form the desulfurization and denitrification solution; adding 750 parts of deionized water, stirring uniformly, adding a proper amount of sodium hydroxide, and adjusting the pH value to 11.
The drying device 3 comprises a drying box, the bottom of the drying box is provided with an air inlet, the top of the drying box is provided with an air outlet, and the drying box is filled with dry particles; the air outlet is a transparent cylinder filled with anhydrous copper sulfate; through the setting of drying device 3, detect after drying to the tail gas after handling, the setting of anhydrous copper sulfate simultaneously can in time judge whether tail gas contains water.
The secondary treatment device 5 and the desulfurization and denitrification reaction device 2 have the same structure; and a second detecting device 6 and a first detecting deviceThe structure of the device 4 is the same; the first detection device 4 comprises a bin body, and a detection sensor is arranged in the bin body; NO for detection by detection sensor X Concentration and SO 2 And (4) concentration.
A waste heat recovery device is arranged between the desulfurization and denitrification reaction device 2 and the filtering device 1, and the temperature of the gas entering the desulfurization and denitrification reaction device 2 is reduced by using the waste heat recovery device, so that a large amount of desulfurization and denitrification solution is prevented from being brought out due to overhigh temperature; meanwhile, the waste heat recovery is convenient to carry out heat recovery on the high-temperature gas, and the waste heat recovery device can be used for heating water and the like.
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 invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. 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 the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides a purify discharging equipment for flue gas desulfurization denitration which characterized in that: comprises a filtering device (1), a desulfurization and denitrification reaction device (2), a drying device (3) and a first detection device (4);
the first detection device (4) is provided with two outlet ends, one outlet end is directly communicated with the exhaust device (7), the other outlet end is communicated with the secondary treatment device (5) through a pipeline A (41), and the outlet of the secondary treatment device (5) is communicated with a second detection device (6);
a check valve (42) is arranged on the pipeline A (41), an air return pipe (43) is communicated with the pipeline A (41) between the check valve (42) and the secondary treatment device (5), one end of the air return pipe (43) is communicated with one air outlet of the second detection device (6), the other air outlet of the second detection device (6) is communicated with an exhaust pipe (61), the exhaust pipe (61) is communicated with the exhaust device (7), and a valve C (62) is arranged on the exhaust pipe (61);
a valve A (44) is arranged on the air return pipe (43);
the valve A (44), the valve C (62), the first detection device (4) and the second detection device (6) are all connected with a processing module.
2. The purification and emission device for desulfurization and denitrification of flue gas according to claim 1, wherein the filtering device (1) comprises a box body (10), the bottom and the top of the box body (10) are respectively provided with an air inlet pipe A (11) and an air outlet pipe A (12) in a communication manner, a porous partition plate (13) is arranged inside the box body between the air inlet pipe A (11) and the air outlet pipe A (12), and a first stone layer (131), a sawdust layer (132) and a second stone layer (133) are paved on the porous partition plate (13).
3. The purification and emission device for desulfurization and denitrification of flue gas according to claim 2, wherein an annular water replenishing spray pipe (14) is arranged in the box body (10) right above the porous partition plate (13), and a spray head is arranged on the water replenishing spray pipe (14);
a raindrop sensor is arranged under the porous partition plate (13), and the water replenishing spray pipe (14) is communicated with a water replenishing pipe provided with a valve B;
and the raindrop sensor and the valve B are both connected with the processing module.
4. The purification and discharge device for desulfurization and denitrification of flue gas according to claim 1, wherein the desulfurization and denitrification reaction device (2) comprises a closed device body (20), two vertical partition plates (21) are arranged in parallel in the device body (20), and a desulfurization and denitrification cavity A (22), a desulfurization and denitrification cavity B (23) and a drying cavity (24) are formed by the partition plates (21) in a separating way;
the desulfurization and denitrification cavity A (22) is filled with desulfurization and denitrification granules; a desulfurization and denitrification solution is filled in the desulfurization and denitrification cavity B (23); the drying cavity (24) is filled with drying particles;
the bottom of the device body (20) is also respectively provided with an air inlet pipe B (201) and an air outlet pipe B (202) which are communicated with the desulfurization and denitrification cavity A (22) and the drying cavity (24);
a first pipe (25) penetrates through a partition plate (21) between the desulfurization and denitrification cavity A (22) and the desulfurization and denitrification cavity B (23), the gas inlet end of the first pipe (25) is positioned at the top of the desulfurization and denitrification cavity A (22) and is higher than the liquid level of the desulfurization and denitrification solution, and the gas outlet end of the first pipe (25) extends to the bottom of the desulfurization and denitrification cavity B (23);
run through on baffle (21) between SOx/NOx control chamber B (23) and dry chamber (24) and be provided with second pipe (26), the inlet end of second pipe (26) is located SOx/NOx control chamber B (23) top and exceeds SOx/NOx control solution liquid level, the end of giving vent to anger of second pipe (26) extends to the bottom in dry chamber (24).
5. The device as claimed in claim 4, wherein the granular desulfurization and denitrification agent is prepared from the following raw materials in parts by weight: 2-7 parts of sodium carbonate, 1-3 parts of aluminum oxide, 2-8 parts of aluminum hydroxide, 2-5 parts of ferric trichloride, 2-6 parts of ferric oxide, 3-10 parts of potassium permanganate, 3-10 parts of potassium chlorate, 10-35 parts of active attapulgite clay, 15-30 parts of urea, 2-4 parts of ammonium formate, 2-4 parts of ammonium chloride, 6-23 parts of ammonium acetate, 3-9 parts of manganese oxide, 9-12 parts of copper chloride, 1-3 parts of copper oxide, 2-4 parts of zinc sulfate, 1-3 parts of zinc nitrate, 7-18 parts of potassium dichromate, 1.0-1.5 parts of titanium dioxide, 0.5-1.0 part of barium molybdate, 0.5-1.5 parts of cobalt sulfate, 0.5-1.5 parts of vanadium pentoxide, 0.3-0.7 part of cerium oxide, 0.1-0.2 part of sodium dodecyl benzene sulfonate and 0.1-0.2 part of alkyl glyceryl ether sulfonate;
the dry particles are quicklime particles or activated carbon particles.
6. The device as claimed in claim 4, wherein the desulfurization and denitrification solution is dimethyl sulfoxide solution; or mixing 40-50 parts of urea, 60-80 parts of sodium carbonate, 0.2-0.8 part of EDTA iron, 0.2-0.8 part of absorption aid and 0.5-0.8 part of distearyl diethylenetriamine;
wherein, the weight sum of EDTA iron, absorption aid and surfactant is more than 1.2 parts, 700-900 parts of deionized water is added, the mixture is stirred evenly, a proper amount of sodium hydroxide is added, and the pH value is adjusted to 10-12.
7. The purification and discharge device for desulfurization and denitrification of flue gas according to claim 1, wherein the drying device (3) comprises a drying oven, the bottom of the drying oven is provided with an air inlet, the top of the drying oven is provided with an air outlet, and the drying oven is filled with dry particles; the air outlet is a transparent column body, and anhydrous copper sulfate is filled in the transparent column body.
8. The clean exhaust device for desulfurization and denitrification of flue gas according to claim 1, wherein the secondary treatment device (5) and the desulfurization and denitrification reaction device (2) are identical in structure; the second detection device (6) and the first detection device (4) have the same structure; the first detection device (4) comprises a bin body, and a detection sensor is arranged in the bin body.
9. The clean exhaust apparatus for desulfurization and denitrification of flue gas according to claim 8, wherein said detection sensor is used for detecting NO X Concentration and SO 2 And (4) concentration.
10. The purification and emission device for desulfurization and denitrification of flue gas as recited in claim 1, wherein a waste heat recovery device is arranged between the desulfurization and denitrification reaction device (2) and the filtering device (1).
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| CN202210815386.6A CN115155192B (en) | 2022-07-08 | 2022-07-08 | Purifying and discharging device for flue gas desulfurization and denitrification |
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