CN108201782A - A kind of boiler flue gas purification technique - Google Patents
A kind of boiler flue gas purification technique Download PDFInfo
- Publication number
- CN108201782A CN108201782A CN201810038224.XA CN201810038224A CN108201782A CN 108201782 A CN108201782 A CN 108201782A CN 201810038224 A CN201810038224 A CN 201810038224A CN 108201782 A CN108201782 A CN 108201782A
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- CN
- China
- Prior art keywords
- sulphur
- denitrogenation
- flue gas
- deodorant
- consolidated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003546 flue gas Substances 0.000 title claims abstract description 58
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000000746 purification Methods 0.000 title claims abstract description 24
- 239000007921 spray Substances 0.000 claims abstract description 82
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000005864 Sulphur Substances 0.000 claims abstract description 69
- 239000002781 deodorant agent Substances 0.000 claims abstract description 65
- 239000007864 aqueous solution Substances 0.000 claims abstract description 41
- 239000007789 gas Substances 0.000 claims abstract description 35
- 239000000126 substance Substances 0.000 claims abstract description 26
- 231100000614 poison Toxicity 0.000 claims abstract description 19
- 230000007096 poisonous effect Effects 0.000 claims abstract description 19
- HXELDDLUAGVKCK-UHFFFAOYSA-N [N]=O.[S] Chemical class [N]=O.[S] HXELDDLUAGVKCK-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000001954 sterilising effect Effects 0.000 claims abstract description 15
- 231100000331 toxic Toxicity 0.000 claims abstract description 14
- 230000002588 toxic effect Effects 0.000 claims abstract description 14
- 230000000249 desinfective effect Effects 0.000 claims abstract description 11
- 230000005855 radiation Effects 0.000 claims abstract description 7
- 239000007800 oxidant agent Substances 0.000 claims abstract description 6
- 231100001261 hazardous Toxicity 0.000 claims abstract description 4
- 238000004064 recycling Methods 0.000 claims abstract description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 16
- 238000001179 sorption measurement Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000003517 fume Substances 0.000 claims description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims description 7
- 238000006555 catalytic reaction Methods 0.000 claims description 6
- 230000015556 catabolic process Effects 0.000 claims description 5
- 238000006731 degradation reaction Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000006303 photolysis reaction Methods 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims description 4
- 241000628997 Flos Species 0.000 claims description 4
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 4
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims description 4
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 4
- JYLNVJYYQQXNEK-UHFFFAOYSA-N 3-amino-2-(4-chlorophenyl)-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(CN)C1=CC=C(Cl)C=C1 JYLNVJYYQQXNEK-UHFFFAOYSA-N 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 claims description 3
- 229910001486 lithium perchlorate Inorganic materials 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 claims description 3
- 229960002218 sodium chlorite Drugs 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- BAZAXWOYCMUHIX-UHFFFAOYSA-M sodium perchlorate Chemical compound [Na+].[O-]Cl(=O)(=O)=O BAZAXWOYCMUHIX-UHFFFAOYSA-M 0.000 claims description 2
- 229910001488 sodium perchlorate Inorganic materials 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 12
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000004332 deodorization Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000009967 tasteless effect Effects 0.000 description 3
- FRXSZNDVFUDTIR-UHFFFAOYSA-N 6-methoxy-1,2,3,4-tetrahydroquinoline Chemical compound N1CCCC2=CC(OC)=CC=C21 FRXSZNDVFUDTIR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- PFRUBEOIWWEFOL-UHFFFAOYSA-N [N].[S] Chemical compound [N].[S] PFRUBEOIWWEFOL-UHFFFAOYSA-N 0.000 description 1
- HGWOWDFNMKCVLG-UHFFFAOYSA-N [O--].[O--].[Ti+4].[Ti+4] Chemical compound [O--].[O--].[Ti+4].[Ti+4] HGWOWDFNMKCVLG-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001925 catabolic effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- -1 flue gas Oxygen compound Chemical class 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000006902 nitrogenation reaction Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
-
- 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
- B01D53/32—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 by electrical effects other than those provided for in group B01D61/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—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
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
- B01D53/70—Organic halogen compounds
-
- 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
-
- 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
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
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- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biomedical Technology (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dispersion Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of boiler flue gas purification techniques, flue gas is purified successively by multi-stage spray clarifier box and ultraviolet radiation for sterilizing and disinfecting clarifier, nitrogen consolidates sulphur deodorant and is pumped into multi-stage spray clarifier box by recycling, the sulphur nitrogen oxides and poisonous and hazardous gaseous matter progress multi-stage spray in flue gas to entering multi-stage spray clarifier box, denitrogenation is made to consolidate sulphur deodorant to be come into full contact with sulphur nitrogen oxides, the toxic and harmful gas substance in flue gas, fully reaction, removing purification.The present invention utilizes the extremely strong oxidisability of strong oxidizer and broad-spectrum disinfecting characteristic, sulphur deodorant aqueous solution is consolidated in denitrogenation and is sent into multi-stage spray purifier, it is come into full contact with sulphur nitrogen oxides, dioxin toxic and harmful gas, fully reaction, it is irradiated again by ultraviolet beam, sterilizing, achievees the purpose that remove sulphur nitrogen oxides and toxic and harmful gas.
Description
Technical field
The present invention relates to technical field of environment pollution control, specifically a kind of boiler flue gas purification technique.
Background technology
In recent years, atmosphere pollution is more serious, the coal-burning boiler that is used in thermal power plant, Industrial Boiler, heating boiler,
Iron and steel enterprise all can discharge a large amount of flue gas using kiln of the coal for fuel to air, have a large amount of sulfur dioxide, nitrogen in flue gas
Oxygen compound and dust, these noxious materials are also arranged with flue gas to air, this is the primary pollution source of atmosphere pollution, conventional
Although oneself reaches 99% to Electric Scrubber Efficiency, for too thin dust, its efficiency of dust collection is still very low；Bag filter
There is higher efficiency for tiny dust, but resistance is but very big, to consume a large amount of electric energy, it is big with current energy-saving and emission-reduction
Good situation is incompatible with, very few using unit, this just makes subtle grey particle in air and poisonous and harmful substance largely surpass
Mark, the generation for mist thunderbolt provide sufficient material base.
At present, the smoke pollution of coal-burning boiler, Industrial Stoves, waste incinerator, nitrogen and desulfurization, removing dioxin are administered
The technology and device of poisonous and harmful substance, equipment is complicated, takes up an area more, investment greatly, and operating cost is high, and effect is poor, and cost is big.By
This, need invent that a kind of simple for process, section emulates the advanced, practical and convenient waste gas purification technology is of great significance.
Invention content
The purpose of the present invention is to provide a kind of boiler flue gas purification technique simple for process, practical and convenient, in solution
State the problem of being proposed in background technology.
To achieve the above object, the present invention provides following technical solution：
A kind of boiler flue gas purification technique, flue gas purify successively by multi-stage spray clarifier box and ultraviolet radiation for sterilizing and disinfecting
Device is purified, and first, denitrogenation consolidates sulphur deodorant and is pumped into multi-stage spray clarifier box by recycling, and is purified to entering multi-stage spray
Sulphur nitrogen oxides and poisonous and hazardous gaseous matter in the flue gas of babinet carry out multi-stage spray, and denitrogenation is made to consolidate sulphur deodorant and cigarette
Sulphur nitrogen oxides, toxic and harmful gas substance in gas are come into full contact with, and are fully reacted, removing purification；Then, it is sprayed through multistage
It is smelly by multigroup ultraviolet (UV) photodissociation lamp, plasma that the leaching purified flue gas of clarifier box enters ultraviolet radiation for sterilizing and disinfecting clarifier
Oxygen lamp, nano titania catalysis net carry out the poisonous and harmful substance in oxygenolysis flue gas, make organic or inorganic macromolecule chemical combination
Object is irradiated through ultraviolet beam, plasma ozone sterilization, and degradation is transformed into low molecular compound；
The denitrogenation is consolidated sulphur deodorant and is made of a variety of strong oxidizers；The multi-stage spray clarifier box is included by partition board point
Sulphur deodorant aqueous solution spray unit is consolidated in the level-one denitrogenation opened, sulphur deodorant aqueous solution spray unit is consolidated in two level denitrogenation, three-level takes off
Nitrogen consolidates sulphur deodorant aqueous solution spray unit, sulphur deodorant aqueous solution spray unit and demisting dewatering unit, level-one are consolidated in grade denitrogenation
Sulphur deodorant aqueous solution spray unit is consolidated in denitrogenation, sulphur deodorant aqueous solution spray unit is consolidated in two level denitrogenation, three-level denitrogenation is consolidated sulphur and removed
Smelly dose of aqueous solution spray unit and grade denitrogenation, which are consolidated, to be both provided with one group of denitrogenation in sulphur deodorant aqueous solution spray unit and consolidates sulphur deodorization
Agent nozzle and filtering adsorption layer；The demisting dewatering unit includes PP nets demister and fiberglass S type demisters.
As further embodiment of the present invention：The strong oxidizer is by potassium permanganate, sodium permanganate, potassium hyperchlorate, high chlorine
One or more of sour sodium, lithium perchlorate, sodium chlorite, sodium hypochlorite, calcium hypochlorite, Ozone Water composition.
As further embodiment of the present invention：Sulphur deodorant aqueous solution spray unit, two level denitrogenation are consolidated in the level-one denitrogenation
Gu sulphur deodorant aqueous solution spray unit, three-level denitrogenation consolidate sulphur deodorant aqueous solution spray unit and sulphur deodorant water is consolidated in grade denitrogenation
Solution spraying unit S-type vent communication successively.
As further embodiment of the present invention：The denitrogenation consolidates sulphur deodorant nozzle as stainless steel.
As further embodiment of the present invention：The filtering adsorption layer is by rare earth oxide, titanium dioxide and volcanic rock group
Into.
As further scheme of the invention：The bottom righthand side of the multi-stage spray clarifier box is additionally provided with gas inlet
With combustible fumes return port, gas inlet is located at the lower section of combustible fumes return port；The left upper end of multi-stage spray clarifier box is also
It is provided with purification gas floss hole.
Compared with prior art, the beneficial effects of the invention are as follows：
It is water-soluble to be consolidated sulphur deodorant using the extremely strong oxidisability of strong oxidizer and broad-spectrum disinfecting characteristic by the present invention for denitrogenation
Liquid is sent into multi-stage spray purifier, is come into full contact with sulphur nitrogen oxides, dioxin toxic and harmful gas, fully reacts, then
It is irradiated by ultraviolet beam, sterilizing, achievees the purpose that remove sulphur nitrogen oxides and toxic and harmful gas；It is fired suitable for administering
Coal burning boiler, Industrial Stoves, flue gas of garbage furnace pollute, energy fast denitrogenation, the toxic harmful exhaust gas object in fast eliminating flue gas
Matter.
Description of the drawings
Fig. 1 is the structure diagram of multi-stage spray clarifier box in the present invention.
Fig. 2 is the structure diagram of middle-ultraviolet lamp sterilization disinfection purifier of the present invention.
Specific embodiment
The technical solution of this patent is described in more detail With reference to embodiment.
Please refer to Fig.1-2, a kind of boiler flue gas purification technique, flue gas is successively by multi-stage spray clarifier box 2 and ultraviolet
Line sterilization disinfection purifier 3 is purified, and first, denitrogenation consolidates sulphur deodorant and is pumped into multi-stage spray clarifier box 2 by recycling, right
Multi-stage spray is carried out into the sulphur nitrogen oxides in the flue gas of multi-stage spray clarifier box 2 and poisonous and hazardous gaseous matter, is made
Denitrogenation is consolidated sulphur deodorant and is come into full contact with sulphur nitrogen oxides, the toxic and harmful gas substance in flue gas, fully reacts, removing
Purification；Then, enter ultraviolet radiation for sterilizing and disinfecting clarifier 3 through 2 purified flue gas of multi-stage spray clarifier box and pass through multigroup purple
Outside line UV photodissociation lamp 15, plasma ozone lamp 16, nano titania catalysis net 17 come poisonous and harmful in oxygenolysis flue gas
Substance makes organic or inorganic high-molecular compound be irradiated through ultraviolet beam, plasma ozone sterilization, and degradation is transformed into low molecule
Compound；Nano titania catalysis net 17 has extremely strong redox ability, can directly decompose the pollutant in flue gas
Into harmless tasteless substance, the cell wall of bacterium is destroyed, kill bacterium and decomposes its silk screen thalline, air dirt is eliminated so as to reach
The purpose of dye.
The denitrogenation is consolidated sulphur deodorant and is made of a variety of strong oxidizers；The multi-stage spray clarifier box 2 is included by partition board
Sulphur deodorant aqueous solution spray unit 4 is consolidated in separated level-one denitrogenation, sulphur deodorant aqueous solution spray unit 5, three is consolidated in two level denitrogenation
Sulphur deodorant aqueous solution spray unit 6 is consolidated in denitrogenation to grade, sulphur deodorant aqueous solution spray unit 7, demisting dewatering unit are consolidated in grade denitrogenation
8, sulphur deodorant aqueous solution spray unit 4 is consolidated in level-one denitrogenation, sulphur deodorant aqueous solution spray unit 5 is consolidated in two level denitrogenation, three-level takes off
Nitrogen consolidates sulphur deodorant aqueous solution spray unit 6 and grade denitrogenation consolidates and is both provided with one group in sulphur deodorant aqueous solution spray unit 7 and takes off
Nitrogen consolidates sulphur deodorant nozzle 1 and filtering adsorption layer 12；The demisting dewatering unit 8 includes PP nets demister 13 and fiberglass S types
Demister 14.
The strong oxidizer by potassium permanganate, sodium permanganate, potassium hyperchlorate, sodium perchlorate, lithium perchlorate, sodium chlorite,
One or more of sodium hypochlorite, calcium hypochlorite, Ozone Water composition；Denitrogenation consolidate sulphur deodorant with extremely strong oxidation and
Broad-spectrum disinfecting characteristic to sulphur nitrogen oxides, foul gas, has poisonous and harmful substance the elimination effect to get instant result, special
It is not Ozone Water, sodium hypochlorite, calcium hypochlorite to the sulphur nitrogen oxides, dioxin poisonous and harmful substances in flue gas, have fast
The effect of fast oxidation, fast decoupled, fast eliminating.
It is single that sulphur deodorant aqueous solution spray unit 4 is consolidated in the level-one denitrogenation, sulphur deodorant aqueous solution spray is consolidated in two level denitrogenation
Member 5, three-level denitrogenation consolidate sulphur deodorant aqueous solution spray unit 6 and grade denitrogenation consolidates sulphur deodorant aqueous solution spray unit 7 successively in S
Type vent communication.Multiple-unit combination inside multi-stage spray clarifier box 2 forms multi-stage spray, multistage filtering absorption.Increase
The way of contact of Ozone Water and exhaust gas, increases time of contact, comes into full contact with, fully reacts.
The denitrogenation consolidates sulphur deodorant nozzle 1 as stainless steel, and the filtering adsorption layer 12 is by rare earth oxide, dioxy
Change titanium and volcanic rock composition；Rare earth oxide, titanium dioxide have catalysis well to the toxic and harmful gas substance in flue gas
Decomposition；Volcanic rock is not easy to plug, natural cellular is porous, and surface area is big, excellent adsorption, and intensity is high, tool small flow resistance
There is the features such as nontoxic, tasteless, pollution-free, anticorrosive, acid and alkali-resistance, "dead".Make filtering adsorption layer with volcanic rock, can effectively inhale
Poisonous and harmful substance in attached flue gas；The bottom righthand side of the multi-stage spray clarifier box 2 is additionally provided with gas inlet 9 and can burning smoke
Gas return port 10, gas inlet 9 are located at the lower section of combustible fumes return port 10；The left upper end of multi-stage spray clarifier box 2 is also set
It is equipped with purification gas floss hole 11.Combustible fumes return port 10, which is formed, to be forced to return burning system, the harmful substance in combustible exhaust gas
It returns in stove and burns, not only contribute to removing sulphur nitrogen oxidation species pernicious gas, and can also be energy-saving.
Denitrogenation consolidates sulphur deodorant and adds in agitation and dilution in recirculated water, and multi-stage spray clarifier box is pumped by cycle；Flue gas
It into after multi-stage spray clarifier box 2, is leaked out with S types, the spray of sulphur deodorant aqueous solution is consolidated in the denitrogenation for passing sequentially through multiple units
Leaching, passes sequentially through the filtering adsorption layers 12 of multiple units, the sulphur nitrogen oxides, dioxin poisonous and harmful substances in flue gas, quilt
Aqueous solution Quick Oxidation, fast decoupled, the fast eliminating of sulphur deodorant are consolidated in denitrogenation, quick to absorb, then by 12 mistake of filtering adsorption layer
Filter absorbs, the pernicious gas in flue gas, by multi-stage oxidizing, decomposition, absorption, filtering, enters back into ultraviolet radiation for sterilizing and disinfecting purification
Device 3, the poisonous and harmful substance of escape are irradiated, photodissociation by ultraviolet beam, make organic or inorganic macromolecule malodorous compound molecule
Chain, degradation are transformed into CO2、H2O etc. is discharged after purification is up to standard by air-introduced machine；Detailed process is as follows：
After flue gas enters multi-stage spray clarifier box 2 by gas inlet 9, leaked out with S types, consolidate sulphur deodorization into level-one denitrogenation
Agent aqueous solution spray unit 4, during by by-pass filtration adsorption layer, due to the catalyticing decomposition action of by-pass filtration adsorption layer, flue gas
In fuel gas stopped by filter layer, pass through combustible fumes return port 10 and return to boiler very hot oven area and burn；Other phosphorus content compared with
Few flue gas consolidates sulphur deodorant nozzle spray unit by adsorption filter layer into level-one denitrogenation；The flue gas warp come in from boiler
After sulphur deodorant aqueous solution spray is consolidated in level-one denitrogenation, enter two level denitrogenation from top and consolidate sulphur deodorant nozzle spray unit, with cigarette
Poisonous and harmful substance contact, reaction in gas, enter three-level denitrogenation from bottom and consolidate sulphur deodorant nozzle spray unit；By filtering
Absorption, spray cleaning, come into full contact with the poisonous and harmful substance in flue gas, react, entering level Four denitrogenation from top consolidates sulphur deodorization
Agent nozzle spray unit is consolidated by the denitrogenation of level Four grade in sulphur deodorant nozzle spray unit filtering absorption, spray cleaning, with flue gas
Poisonous and harmful substance come into full contact with, react after, enter demisting dewatering unit 8 from bottom to top from bottom.Flue gas consolidates sulphur through denitrogenation
After deodorant aqueous solution multi-stage spray, containing a large amount of moisture, demisting is needed to be discharged after being dehydrated, humid flue gas is dehydrated by demisting
During unit 8, the water mist in flue gas is condensed into big water droplet, by the blocking of demisting dehydrator, intercepts.Boiler smoke is consolidated through level Four denitrogenation
Sulphur deodorant aqueous solution spray cleaning, filtering absorption, it is longer with the sulphur nitrogen oxides, dioxin poisonous and harmful substances in flue gas
Time comes into full contact with, and fully reacts, and demisting is dehydrated after purified treatment, purification gas floss hole 11 is walked out, into ultraviolet
Oxygen clarifier.
Ultraviolet (UV) photodissociation lamp 15, ion lamp and nano titania catalysis net 17 can be in oxygenolysis flue gas toxic have
Evil substance, makes organic or inorganic high-molecular compound be irradiated through ultraviolet beam, and degradation is transformed into low molecular compound, titanium dioxide
Titanium nano-catalytic net 17 has extremely strong oxidationreduction ability, can directly resolve into the pollutant in flue gas harmless tasteless
Substance destroys the cell wall of bacterium, kills bacterium and decomposes its silk screen thalline, so as to achieve the purpose that eliminate air pollution, makes
Dioxin poisonous and harmful substance is decomposed within the anxious short time, is purified, and gas passes through the reactor of ion manipulation arrangement
During region, under the multiple actions such as high energy electron and free radical Strong oxdiative, the organic molecule chain in gas is disconnected, and occurs one
Serial complicated redox reaction, generates CO2、H2The innocuous substances such as O.
In the tail gas that flue gas discharges after processing, atmosphere pollution whole project pollutant is below GB18485-2014
《Consumer waste incineration pollutant catabolic gene standard》In, " pollutant emission limit in 4 domestic waste incineration of table discharge flue gas " rule
Fixed limit value.Wherein dioxin Air Pollutants Emissions≤0.01ngTEQ/m3。
It is water-soluble to be consolidated sulphur deodorant using the extremely strong oxidisability of strong oxidizer and broad-spectrum disinfecting characteristic by the present invention for denitrogenation
Liquid is sent into multi-stage spray purifier, is come into full contact with sulphur nitrogen oxides, dioxin toxic and harmful gas, fully reacts, then
It is irradiated by ultraviolet beam, sterilizing, achievees the purpose that remove sulphur nitrogen oxides and toxic and harmful gas；It is fired suitable for administering
Coal burning boiler, Industrial Stoves, flue gas of garbage furnace pollute, energy fast denitrogenation, the toxic harmful exhaust gas object in fast eliminating flue gas
Matter.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be under the premise of this patent objective not be departed from the knowledge that one skilled in the relevant art has
Various changes can be made.
Claims (6)
1. a kind of boiler flue gas purification technique, flue gas is net by multi-stage spray clarifier box (2) and ultraviolet radiation for sterilizing and disinfecting successively
Change device (3) to be purified, which is characterized in that first, denitrogenation consolidates sulphur deodorant and is pumped into multi-stage spray clarifier box by recycling
(2), the sulphur nitrogen oxides in the flue gas to entering multi-stage spray clarifier box (2) and poisonous and hazardous gaseous matter carry out multistage
Spray, makes denitrogenation consolidate sulphur deodorant and is come into full contact with sulphur nitrogen oxides, the toxic and harmful gas substance in flue gas, fully anti-
Should, removing purification；Then, enter ultraviolet radiation for sterilizing and disinfecting clarifier (3) through multi-stage spray clarifier box (2) purified flue gas
By multigroup ultraviolet (UV) photodissociation lamp (15), plasma ozone lamp (16), nano titania catalysis net (17) come oxygenolysis
Poisonous and harmful substance in flue gas makes organic or inorganic high-molecular compound be irradiated through ultraviolet beam, plasma ozone sterilization,
Degradation is transformed into low molecular compound；
The denitrogenation is consolidated sulphur deodorant and is made of a variety of strong oxidizers；The multi-stage spray clarifier box (2) is including by partition board point
Sulphur deodorant aqueous solution spray unit (4) is consolidated in the level-one denitrogenation opened, sulphur deodorant aqueous solution spray unit (5) is consolidated in two level denitrogenation,
Sulphur deodorant aqueous solution spray unit (6) is consolidated in three-level denitrogenation, sulphur deodorant aqueous solution spray unit (7) is consolidated in grade denitrogenation and demisting takes off
Water unit (8), it is single that sulphur deodorant aqueous solution spray unit (4) is consolidated in level-one denitrogenation, sulphur deodorant aqueous solution spray is consolidated in two level denitrogenation
First (5), sulphur deodorant aqueous solution spray unit (6) is consolidated in three-level denitrogenation and sulphur deodorant aqueous solution spray unit (7) is consolidated in grade denitrogenation
In be both provided with one group of denitrogenation consolidate sulphur deodorant nozzle (1) and filtering adsorption layer (12)；The demisting dewatering unit (8) is including PP
Net demister (13) and fiberglass S types demister (14).
2. boiler flue gas purification technique according to claim 1, which is characterized in that the strong oxidizer by potassium permanganate,
One kind in sodium permanganate, potassium hyperchlorate, sodium perchlorate, lithium perchlorate, sodium chlorite, sodium hypochlorite, calcium hypochlorite, Ozone Water
Or several compositions.
3. boiler flue gas purification technique according to claim 1, which is characterized in that sulphur deodorant water is consolidated in the level-one denitrogenation
Solution spraying unit (4), two level denitrogenation consolidate sulphur deodorant aqueous solution spray unit (5), sulphur deodorant aqueous solution is consolidated in three-level denitrogenation
Sulphur deodorant aqueous solution spray unit (7) S-type vent communication successively is consolidated in spray unit (6) and grade denitrogenation.
4. boiler flue gas purification technique according to claim 1, which is characterized in that the denitrogenation consolidates sulphur deodorant nozzle and is
Stainless steel.
5. boiler flue gas purification technique according to claim 1, which is characterized in that the filtering adsorption layer (12) is by rare earth
Oxide, titanium dioxide and volcanic rock composition.
6. boiler flue gas purification technique according to claim 1, which is characterized in that the multi-stage spray clarifier box (2)
Bottom righthand side be additionally provided with gas inlet (9) and combustible fumes return port (10), gas inlet (9) is positioned at combustible fumes return port
(10) lower section；The left upper end of multi-stage spray clarifier box (2) is additionally provided with purification gas floss hole (11).
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| CN201810038224.XA CN108201782A (en) | 2018-01-16 | 2018-01-16 | A kind of boiler flue gas purification technique |
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| CN108889105A (en) * | 2018-07-31 | 2018-11-27 | 王保行 | Sulphur purification system and its purification process are consolidated in the strength denitration of cement furnace coal-fired flue-gas |
| CN110500612A (en) * | 2019-08-28 | 2019-11-26 | 杭州易灿网络科技有限公司 | A kind of environment protection warming stove coal full combustion equipment |
| CN110585906A (en) * | 2019-09-11 | 2019-12-20 | 肖涛 | Hazardous waste high-temperature flue gas treatment process |
| CN110585820A (en) * | 2019-09-24 | 2019-12-20 | 周成宗 | Industrial waste gas purification method |
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