CN109364748A - Based on emulsion foaming sponge production line exhaust treatment system and waste gas processing method - Google Patents
Based on emulsion foaming sponge production line exhaust treatment system and waste gas processing method Download PDFInfo
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- CN109364748A CN109364748A CN201811471697.5A CN201811471697A CN109364748A CN 109364748 A CN109364748 A CN 109364748A CN 201811471697 A CN201811471697 A CN 201811471697A CN 109364748 A CN109364748 A CN 109364748A
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- free radical
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- 238000005187 foaming Methods 0.000 title claims abstract description 36
- 239000000839 emulsion Substances 0.000 title claims abstract description 34
- 239000002912 waste gas Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000003672 processing method Methods 0.000 title abstract description 4
- 230000003647 oxidation Effects 0.000 claims abstract description 55
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 55
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 52
- 150000003254 radicals Chemical class 0.000 claims abstract description 40
- 239000007789 gas Substances 0.000 claims abstract description 37
- 239000000203 mixture Substances 0.000 claims abstract description 30
- 238000005201 scrubbing Methods 0.000 claims abstract description 28
- 239000011953 free-radical catalyst Substances 0.000 claims abstract description 27
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 24
- 231100000719 pollutant Toxicity 0.000 claims abstract description 24
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 19
- 239000012855 volatile organic compound Substances 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims description 83
- 239000007788 liquid Substances 0.000 claims description 63
- 239000007921 spray Substances 0.000 claims description 44
- 230000003197 catalytic effect Effects 0.000 claims description 30
- 239000000945 filler Substances 0.000 claims description 29
- 241000243142 Porifera Species 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 22
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000012856 packing Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 7
- 230000001590 oxidative effect Effects 0.000 claims description 7
- -1 polypropylene Polymers 0.000 claims description 7
- 241000264877 Hippospongia communis Species 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000002195 synergetic effect Effects 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052570 clay Inorganic materials 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000005406 washing Methods 0.000 abstract description 3
- 239000007864 aqueous solution Substances 0.000 abstract description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 14
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 14
- 238000012545 processing Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000004816 latex Substances 0.000 description 8
- 229920000126 latex Polymers 0.000 description 8
- 238000004073 vulcanization Methods 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 7
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002440 industrial waste Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 238000006303 photolysis reaction Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 1
- 239000005695 Ammonium acetate Substances 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241001477893 Mimosa strigillosa Species 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229940043376 ammonium acetate Drugs 0.000 description 1
- 235000019257 ammonium acetate Nutrition 0.000 description 1
- 239000000908 ammonium hydroxide Substances 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
- 230000037237 body shape Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000011787 zinc oxide 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
- B01D53/86—Catalytic processes
- B01D53/869—Multiple step processes
-
- 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
- B01D53/34—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
- B01D53/8603—Removing sulfur compounds
- B01D53/8612—Hydrogen sulfide
-
- 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
- B01D53/8621—Removing nitrogen compounds
- B01D53/8634—Ammonia
-
- 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
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (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 one kind to be based on emulsion foaming sponge production line exhaust treatment system and waste gas processing method, and the exhaust treatment system includes that ozone causes free radical scrubbing tower, photic free radical catalyst oxidation reactor, air-introduced machine, exhaust tube；According to gas flow direction, the ozone causes free radical scrubbing tower, photic free radical catalyst oxidation reactor, air-introduced machine, exhaust tube to pass sequentially through pipeline connection.The present invention is that mix waste gas is introduced to the system for causing free-atom aqueous solution washing and the building of photic free radical catalysis oxidation based on ozone, realizes NH in mix waste gas3、H2S, VOCs multiple pollutant exhaustive oxidation is degraded, and exhaust treatment system of the invention realizes exhaust gas qualified discharge, meets environmental requirement.
Description
Technical field
The present invention relates to environmental protection technologies and industrial waste gas Treatment process field, more particularly to are produced based on emulsion foaming sponge
Line exhaust treatment system and waste gas processing method.
Background technique
Emulsion foaming technique using physically or chemically mode by the raw and auxiliary materials such as liquid emulsion and additive (natural emulsion,
Carboxylic styrene butadiene latex, butadiene-styrene latex, industrial soap, water, zinc oxide vulcanizing agent, ammonium acetate, silicone oil, sulphur, calcium carbonate, vulcanization add
Fast agent, mill base, ammonium hydroxide, cloth etc.) it foams, to obtain emulsion foaming sponge, emulsion foaming sponge can be used for making latex
The various daily household items of pillow, latex bed mattress, latex footwear material, latex insole, latex powder puff, latex foam toy etc..It is based on
The main pollution node of production line that emulsion foaming sponge technique is established has ingredient, weighing, stirring, foaming, sizing, vulcanization drying,
It wherein weighs, stir, foaming process can generate dust and NH3Etc. atmosphere pollutions, sizing, vulcanization drying course can generate volatilization
Property organic matter (VOCs) and H2The atmosphere pollution such as S, the atmosphere pollution that entire emulsion foaming sponge production line generates summarizes can be just
It forms including dust, NH3、H2S, the mix waste gas of VOCs.
Currently, industrial waste gas Treatment process mainly has solution absorption method, active carbon adsorption, flame combustion method, catalysis combustion
Burning method, photodissociation method etc., solution absorption method is to the NH that can be removed in emulsion foaming sponge exhaust gas3And H2S, but treatment effeciency is low, inhales
It is big to receive liquid dosage；Active carbon absorption process can adsorb emulsion foaming sea using seed activity or the absorption property of cellular activated carbon
VOCs in continuous exhaust gas, but the NH in exhaust gas can not be effectively removed3And H2S, while a large amount of waste active carbon dangerous waste can be generated
Object；Heating power incineration method handles emulsion foaming sponge production line mix waste gas, can generate NOx, SO2Etc. toxic by-products, disappear simultaneously
Consume a large amount of natural gas energy resources；Production by Catalytic Combustion Process purifies emulsion foaming sponge production line mix waste gas, because of NH3And H2S exists, and holds
Easily lead to active constituent poison deactivation in catalyst；Photodissociation method mainly utilizes ultraviolet light to generate light wave and ozone decomposing pollutant point
Son cannot achieve the thorough mineralising of pollutant, and treatment effeciency is relatively low, and is difficult to effectively remove the NH in exhaust gas3.To sum up, existing
Some industrial waste gas processing techniques are difficult to be applicable in the processing of emulsion foaming sponge production line mix waste gas, to solve emulsion foaming sponge
Dust, NH in production line mix waste gas3、H2S, VOCs multiple pollutant purifies problem, and it is still necessary to develop completely new environmental protection technology and be
System.
Summary of the invention
The present invention is to solve the defect and deficiency of prior art processing emulsion foaming sponge production line mix waste gas, provides one
Emulsion foaming sponge production line mix waste gas processing system of the kind based on free radical catalysis oxidation is to be based on mix waste gas introducing
The system that ozone causes free-atom aqueous solution washing and the building of photic free radical catalysis oxidation, realizes NH in mix waste gas3、H2S、VOCs
The degradation of multiple pollutant exhaustive oxidation.
To achieve the above object, the technical solution adopted by the present invention is that a kind of exhaust treatment system, including ozone cause freely
Base scrubbing tower, photic free radical catalyst oxidation reactor, air-introduced machine, exhaust tube；According to gas flow direction, the ozone is caused certainly
Pipeline connection is passed sequentially through by base scrubbing tower, photic free radical catalyst oxidation reactor, air-introduced machine, exhaust tube.
Preferably, it includes tower body, catalytic filler layer, absorbing liquid spray thrower, demisting that the ozone, which causes free radical scrubbing tower,
Packing layer, absorbing liquid collecting tank, water circulating pump, ejector, ozone machine；The tower body wall is equipped with tower body air inlet, tower body goes out
Port, tower body inlet set gradually catalytic filler layer, absorbing liquid spray thrower, demisting packing layer in the tower body from bottom to top；
The tower body is connected with the bottom of absorbing liquid collecting tank, water circulating pump, ejector, the tower body feed liquor on absorbing liquid collecting tank top
Mouth, absorbing liquid spray thrower are connected by pipeline；Ejector is connected to by pipeline with ozone machine.
Preferably, the catalytic filler layer includes first order catalytic filler layer, second level catalytic filler layer, the absorbing liquid
Spray thrower includes first order absorbing liquid spray thrower, second level absorbing liquid spray thrower, and the tower body inlet includes first order tower body
Inlet, second level tower body inlet；First order catalytic filler layer is set gradually in the tower body from bottom to top, the first order absorbs
Liquid spray thrower, second level catalytic filler layer, second level absorbing liquid spray thrower, demisting packing layer；The first order tower body inlet
It is arranged on the pipeline of first order spray thrower connection, the pipe of second level spray thrower connection is arranged in the second level tower body inlet
On road.
Preferably, it is cylindrical body that the ozone, which causes the tower body shape of free radical scrubbing tower, making material be glass reinforced plastic or
Polypropylene.
Preferably, the ozone causes the catalytic filler layer of free radical scrubbing tower by hollow sphere and is placed in urging in hollow sphere
Agent is constituted, and hollow ball material is polypropylene；Catalyst shape is sphere, and the catalyst is by active carbon, clay, iron filings, two
Titanium oxide, manganese dioxide composition.
Preferably, the photic free radical catalyst oxidation reactor includes reactor cabinet, ultraviolet lamp group, catalyst
Layer；Reactor tank ends are respectively equipped with cabinet air inlet and cabinet gas outlet；According to gas flow direction, ultraviolet lamp group is urged
Agent layer is successively set in reactor cabinet.
Preferably, the ultraviolet lamp group include the ultraviolet lamp group of the first order, the ultraviolet lamp group in the second level, the ultraviolet lamp group of the third level and
The ultraviolet lamp group of the fourth stage, the catalyst layer include first order catalyst layer, second level catalyst layer, third level catalyst layer,
Fourth stage catalyst layer, according to gas flow direction, the ultraviolet lamp group of the first order, first order catalyst layer, the ultraviolet lamp group in the second level,
The ultraviolet lamp group of second level catalyst layer, the third level, third level catalyst layer, the ultraviolet lamp group of the fourth stage, fourth stage catalyst layer according to
It is secondary to be arranged in reactor cabinet.
Preferably, the U that the ultraviolet lamp group of the photic free radical catalyst oxidation reactor is 185nm by energy generation wavelength
Type vacuum UV lamp composition, the long 810mm of vacuum UV lamp.
Preferably, the first order catalyst layer of the photic free radical catalyst oxidation reactor, second level catalyst layer,
Third level catalyst layer is by absorbent-type TiO2-MnO2Honeycomb catalyst is constituted, it is preferable that TiO2-MnO2Honeycomb catalyst with
100mm × 100mm × 50mm ceramic honey comb is carrier；The fourth stage catalyst of the photic free radical catalyst oxidation reactor
Layer is by absorbent-type MnO2Honeycomb catalyst is constituted, MnO2Honeycomb catalyst is using 100mm × 100mm × 50mm ceramic honey comb as carrier.
The present invention also provides a kind of methods of exhaust-gas treatment emulsion foaming sponge production line mix waste gas, including following step
It is rapid:
1) starting ozone causes the water circulating pump of free radical scrubbing tower, ozone machine, photic free radical catalyst oxidation reactor
The ultraviolet lamp group of the first order, the ultraviolet lamp group in the second level, the ultraviolet lamp group of the third level, the ultraviolet lamp group of the fourth stage and air-introduced machine；Absorbing liquid is received
Absorbing liquid enters absorbing liquid spray thrower (first order absorbing liquid spray thrower and second level absorbing liquid spray by water circulating pump in collection slot
Device) before, pass through the ozone of ejector injection of ozone machine generation；
2) emulsion foaming sponge production line mix waste gas is entered smelly by the tower body air inlet of ozone cause free radical scrubbing tower
Oxygen causes free radical scrubbing tower, and mix waste gas passes through catalytic filler layer (first order catalytic filler layer and second with adsorption capacity
Grade catalytic filler layer), dust, the NH of carrying3、H2S, VOCs multiple pollutant is in absorbing liquid spray thrower (first order absorbing liquid spray
Device and second level absorbing liquid spray thrower) injection absorbing liquid absorb, catalyst absorb, absorbing liquid carry ozone oxidation, catalysis
Under the synergistic effect of the active component catalysis oxidation on agent periphery, being largely degraded is converted into harmless object (N and S is oxidized to high price
Compound, C, H and O transform into CO2、H2O), the pollutant that fraction is not degraded is arranged with mixed airflow from tower body gas outlet
Out；
3) mixed airflow enters photic free radical catalyst oxidation reactor, in ultraviolet lamp group (the ultraviolet lamp group of the first order, second
The ultraviolet lamp group of grade, the ultraviolet lamp group of the third level and the ultraviolet lamp group of the fourth stage) excitation oxidative free radical oxidation and catalyst layer (the
One stage catalyzing oxidant layer, second level catalyst layer, third level catalyst layer and fourth stage catalyst layer) active component catalysis oxidation
Under synergistic effect, the pollutant almost all not being degraded, which is degraded, is converted into harmless object, clean mixed airflow from it is photic from
Air-introduced machine is discharged by the reactor cabinet gas outlet of base catalyst oxidation reactor, introduces exhaust tube high altitude discharge.
Beneficial effects of the present invention:
1) free radical scrubbing tower is caused to remove NH using wet type ozone3、H2The multiple pollutants such as S and VOCs, scale easy to accomplish
Amplification and integrated high-efficiency mineralising remove multiple pollutant, it is ensured that exhaust gas is greater than 2s in dwell time in the tower, while to absorption
Injection of ozone in liquid, absorbing liquid are regenerated after the processing of free-radical oxidation derived from ozone and ozone, extend absorbing liquid
Replacement cycle solves the environment difficulties of the efficient Collaborative Control of emulsion foaming sponge production line mix waste gas multiple pollutant.
2) the ultraviolet lamp group of multistage of photic free radical catalyst oxidation reactor and absorbent-type catalyst replace series system, hold
Easily realize that scale amplification and integrated high-efficiency mineralising remove multiple pollutant, it is ensured that air-flow residence time in reactor is greater than
2s, can make full use of the oxidative free radical of ultraviolet lamp generation and the active component of catalyst, and efficient capture catalysis oxidation is super
Low concentration pollutant, while the oxidative free radical that ultraviolet lamp generates has palingenesis to catalyst, extends catalyst
Replacement cycle.
Detailed description of the invention
Fig. 1 is mix waste gas processing system process flow chart of the invention；
Fig. 2 is that ozone causes free radical structure of column scrubber schematic diagram；
Fig. 3 is photic free radical catalyst oxidation reactor structural schematic diagram.
In figure: 1, ozone cause free radical scrubbing tower, 11, tower body, 12, tower body air inlet, 13, first order catalytic filler layer,
14, first order absorbing liquid spray thrower, 15, second level catalytic filler layer, 16, second level absorbing liquid spray thrower, 17, demisting filler
Layer, 18, tower body gas outlet, 19, absorbing liquid collecting tank, 110, water circulating pump, 111, ejector, 112, ozone machine, 113, first
Grade tower body inlet, 114, second level tower body inlet；2, photic free radical catalyst oxidation reactor, 21, reactor cabinet,
22, cabinet air inlet, 23, the ultraviolet lamp group of the first order, 24, first order catalyst layer, 25, the ultraviolet lamp group in the second level, 26, the second level
Catalyst layer, 27, the ultraviolet lamp group of the third level, 28, third level catalyst layer, 29, the ultraviolet lamp group of the fourth stage, 210, fourth stage catalysis
Oxidant layer, 211, cabinet gas outlet；3, air-introduced machine, 4, exhaust tube.
Specific embodiment
The present invention is further described in detail with reference to the accompanying drawing, these attached drawings are simplified schematic diagram, only
The basic structure that the invention is illustrated in a schematic way, the direction of this specific implementation is using the direction Fig. 1 as standard.
In the production process of latex product, the main pollution node of production line established based on emulsion foaming sponge technique is had
Ingredient, weighing, stirring, foaming, sizing, vulcanization drying, wherein weighing, stirring, foaming process can generate dust and NH3Equal atmosphere
Pollutant, sizing, vulcanization drying course can generate volatile organic matter (VOCs) and H2The atmosphere pollution such as S, entire emulsion foaming
The atmosphere pollution that sponge production line generates, which summarizes, can be formed including dust, NH3、H2S, the 36000m of VOCs3/ h mixing is useless
Gas.According to environmentally friendly related request, latex foam line agitating procedure ammonia executes execution " rubber product emission of industrial pollutants mark
It is quasi- " 5 standard (ammonia≤10mg/m of (GB27632-2011) table3), it foams, non-methane hydrocarbon emission in shaping process and vulcanization plant
Execute 5 standard (non-methane total hydrocarbons≤10mg/m of " rubber product emission of industrial pollutants standard " (GB27632-2011) table3), hair
VOCs discharge implements " shoe-making industry volatile organic compounds discharge standard " in bubble, shaping process and vulcanization plant
(DB44/804-2010) Section II period VOCs emission limit (VOCs concentration≤40mg/m3, VOCs rate of discharge≤2.6kg/h),
Hydrogen sulfide, odorant pollutant discharge execute discharge standard in " emission standard for odor pollutants " (GB14554-93) in vulcanization process
It is worth (15m high exhaust tube odor concentration≤2000 (dimensionless)；15m high exhaust tube hydrogen sulfide emission rate≤0.33kg/h).
The invention discloses a kind of emulsion foaming sponge production line mix waste gas processing system, which can be realized mixing
NH in exhaust gas3、H2S, VOCs multiple pollutant exhaustive oxidation is degraded, and meets discharge standard.
As shown in Figure 1, the emulsion foaming sponge production line mix waste gas processing system includes that ozone causes free radical washing
Tower 1, photic free radical catalyst oxidation reactor 2, air-introduced machine 3, exhaust tube 4；According to gas flow direction, the ozone is caused freely
Base scrubbing tower 1, photic free radical catalyst oxidation reactor 2, air-introduced machine 3, exhaust tube 4 pass sequentially through pipeline connection.Of the invention
Model selection of ID fan are as follows: specifications and models LF-1200C-30kW, power of motor 30kW, air quantity 36000m3/ h, wind pressure 1400Pa.Exhaust
Cylinder 15m high, diameter 1500mm.Exhaust treatment system of the invention is capable of handling emulsion foaming sponge production line 36000m3/ h's
Mix waste gas.
As shown in Fig. 2, it includes tower body 11, first order catalytic filler layer 13, first order absorption that ozone, which causes free radical scrubbing tower 1,
Liquid spray thrower 14, second level catalytic filler layer 15, second level absorbing liquid spray thrower 16, demisting packing layer 17, absorbing liquid collecting tank
19, water circulating pump 110, ejector 111, ozone machine 112；Tower body wall is equipped with tower body air inlet 12, tower body gas outlet 18, first
Grade tower body inlet 113 and second level tower body inlet 114, the bottom end of tower body 11, tower body is arranged in the tower body air inlet 12
The top of tower body 11 is arranged in gas outlet 18.First order catalytic filler layer 13, first is set gradually in the tower body from bottom to top
Grade absorbing liquid spray thrower 14, second level catalytic filler layer 15, second level absorbing liquid spray thrower 16, demisting packing layer 17；Tower body 11
It is connected with the bottom of absorbing liquid collecting tank 19, water circulating pump 110, the ejector 111, the first order on 19 top of absorbing liquid collecting tank
Tower body inlet 113, first order spray thrower 14, second level tower body inlet 114 and second level spray thrower 16 are connected by pipeline
It is logical；The first order tower body inlet 113 is arranged on the pipeline of the connection of first order spray thrower 14, the second level tower body feed liquor
Mouth 114 is arranged on the pipeline of the connection of second level spray thrower 16, and ejector 111 is connected to by pipeline with ozone machine 112.
It is cylindrical body that ozone, which causes 11 shape of tower body of free radical scrubbing tower 1, and making material is glass reinforced plastic, diameter 3200mm,
High 5100mm.Ozone cause the first order catalytic filler layer 13 of free radical scrubbing tower 1, second level catalytic filler layer 15 by hollow sphere and
The catalyst being placed in hollow sphere is constituted, and hollow ball material is polypropylene, diameter 80mm；Catalyst shape is sphere, diameter
35mm is made of active carbon 30%, clay 6%, iron filings 50%, titanium dioxide 8%, manganese dioxide 6%.
As shown in figure 3, photic free radical catalyst oxidation reactor 2 include reactor cabinet 21, the ultraviolet lamp group 23 of the first order,
First order catalyst layer 24, the ultraviolet lamp group 25 in the second level, second level catalyst layer 26, the ultraviolet lamp group 27 of the third level, the third level are urged
The ultraviolet lamp group 29 of agent layer 28, the fourth stage, fourth stage catalyst layer 210；Reactor tank ends are respectively equipped with cabinet air inlet
22 and cabinet gas outlet 211；According to gas flow direction, the ultraviolet lamp group 23 of the first order, first order catalyst layer 24, the second level are purple
The ultraviolet lamp group 27 of outer lamp group 25, second level catalyst layer 26, the third level, third level catalyst layer 28, the ultraviolet lamp group 29 of the fourth stage,
Fourth stage catalyst layer 210 is sequentially arranged in reactor cabinet 21.Certainly, catalyst layer of the invention, ultraviolet lamp group are unlimited
Be previously mentioned 4 grades of present embodiment processed, can according to need setting.
21 shape of reactor cabinet of photic free radical catalyst oxidation reactor 2 is cuboid, and making material is stainless steel,
Long 4000mm, wide 2300mm, high 2400mm.
The ultraviolet lamp group 23 of the first order of photic free radical catalyst oxidation reactor 2, the ultraviolet lamp group 25 in the second level, the third level are purple
The ultraviolet lamp group 29 of outer lamp group 27, the fourth stage is made of the U-shaped vacuum UV lamp that energy generation wavelength is 185nm, and vacuum UV lamp is long
810mm, power 150W/ branch.The ultraviolet lamp group 23 of the first order, the ultraviolet lamp group 25 in the second level, the ultraviolet lamp group 27 of the third level, the fourth stage are purple
29 every groups of outer lamp group installs 6 ultraviolet lamps respectively.
The first order catalyst layer 24 of photic free radical catalyst oxidation reactor 2, second level catalyst layer 26, the third level are urged
Agent layer 28 is by absorbent-type TiO2-MnO2Honeycomb catalyst is constituted, TiO2-MnO2Honeycomb catalyst with 100mm × 100mm ×
50mm ceramic honey comb is carrier, using H-ZSM-5 molecular sieve to TiO2、MnO2Active component carries out structure regulating, passes through infusion process
Preparation.
The fourth stage catalyst layer 210 of photic free radical catalyst oxidation reactor 2 is by absorbent-type MnO2Honeycomb catalyst structure
At MnO2Honeycomb catalyst is using 100mm × 100mm × 50mm ceramic honey comb as carrier, using H-ZSM-5 molecular sieve to TiO2It is living
Property component carry out structure regulating, prepared by infusion process.
The step of emulsion foaming sponge production line mix waste gas processing system of the invention, is as follows:
1) starting ozone causes the water circulating pump 110, ozone machine 112, photic free radical catalysis oxidation of free radical scrubbing tower 1 anti-
Answer the ultraviolet lamp group 23 of the first order of device 2, the ultraviolet lamp group 25 in the second level, the ultraviolet lamp group 27 of the third level, the ultraviolet lamp group 29 of the fourth stage and
Air-introduced machine 3；Absorbing liquid enters the (first order absorbing liquid spray of absorbing liquid spray thrower by water circulating pump 110 in absorbing liquid collecting tank 19
Drench device 113 and second level absorbing liquid spray thrower 114) before, pass through the ozone of 111 injection of ozone machine 112 of ejector generation；
2) emulsion foaming sponge production line 36000m3/ h mix waste gas causes the tower body 11 of free radical scrubbing tower 1 by ozone
Air inlet enters ozone and causes free radical scrubbing tower 1, and mix waste gas passes through the catalytic filler layer (first order catalysis with adsorption capacity
Packing layer 13 and second level catalytic filler layer 15), dust, the NH of carrying3、H2S, VOCs multiple pollutant is in absorbing liquid spray thrower
The absorbing liquid of (first order absorbing liquid spray thrower 14 and second level absorbing liquid spray thrower 16) injection absorbs, catalyst absorbs, absorbs
Ozone oxidation that liquid carries under the synergistic effect of the active component catalysis oxidation on catalyst periphery, is largely degraded and is converted into
(N and S are oxidized to high price compound to harmless object, and C, H and O transform into CO2、H2O), the pollutant that fraction is not degraded is with mixed
Air-flow is closed to be discharged from tower body gas outlet 18；
3) mixed airflow enter photic free radical catalyst oxidation reactor 2, ultraviolet lamp group (the ultraviolet lamp group 23 of the first order,
The ultraviolet lamp group 25 in the second level, the ultraviolet lamp group 27 of the third level, the ultraviolet lamp group 29 of the fourth stage) excitation oxidative free radical oxidation and urge
Agent layer (first order catalyst layer 24, second level catalyst layer 26, third level catalyst layer 28 and fourth stage catalyst layer 210)
Under the synergistic effect of active component catalysis oxidation, the pollutant almost all not being degraded, which is degraded, is converted into harmless object, cleaning
Mixed airflow be discharged into air-introduced machine 3 from 21 gas outlet of reactor cabinet of photic free radical catalyst oxidation reactor 2, introduce
4 high altitude discharge of 15m high exhaust tube.
Comparative example 1
The emulsion foaming sponge production line mix waste gas processing system that this comparative example provides, structure with it is of the invention described
Processing system it is essentially identical, the difference is that only, not include photic free radical catalyst oxidation reactor 2, this comparative example
Exhaust treatment system by gas flow direction include pass sequentially through pipeline connection ozone cause free radical scrubbing tower 1, air-introduced machine 3,
Exhaust tube 4.
Comparative example 2
The emulsion foaming sponge production line mix waste gas processing system that this comparative example provides, structure with it is of the invention described
Processing system it is essentially identical, the difference is that only, the photic free radical catalyst oxidation reactor 2 does not include ultraviolet lamp
Group.
Detection is by the present invention, comparative example 1 and the purified NH of 2 exhaust treatment system of comparative example respectively3、H2S's and VOCs
Removal rate, testing result are as shown in table 1:
Table 1
| Group | NH3Removal rate | H2S removal rate | VOCs removal rate |
| The present invention | 95% | 96% | 95% |
| Comparative example 1 | 85% | 83% | 84% |
| Comparative example 2 | 87% | 89% | 87% |
By upper table data it is found that emulsion foaming sponge production line mix waste gas is handled through exhaust treatment system of the invention
Afterwards, NH3、H2The removal rate of S and VOCs is obviously better than comparative example 1 and comparative example 2.Exhaust treatment system of the invention realizes
Exhaust gas qualified discharge, meets environmental requirement.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (10)
1. a kind of exhaust treatment system, which is characterized in that cause free radical scrubbing tower, photic free radical catalysis oxidation anti-including ozone
Answer device, air-introduced machine, exhaust tube；According to gas flow direction, the ozone causes free radical scrubbing tower, photic free radical catalysis oxidation
Reactor, air-introduced machine, exhaust tube pass sequentially through pipeline connection.
2. exhaust treatment system according to claim 1, which is characterized in that the ozone causes the free radical scrubbing tower to include
Tower body, catalytic filler layer, absorbing liquid spray thrower, demisting packing layer, absorbing liquid collecting tank, water circulating pump, ejector, ozone machine；
The tower body wall is equipped with tower body air inlet, tower body gas outlet, tower body inlet, sets gradually and urges from bottom to top in the tower body
Change packing layer, absorbing liquid spray thrower, demisting packing layer；The tower body is connected with the bottom of absorbing liquid collecting tank, and absorbing liquid is received
Collect the water circulating pump on slot top, ejector, tower body inlet, absorbing liquid spray thrower, be connected by pipeline；Ejector passes through pipe
Road is connected to ozone machine.
3. exhaust treatment system according to claim 2, which is characterized in that the catalytic filler layer includes first order catalysis
Packing layer, second level catalytic filler layer, the absorbing liquid spray thrower include first order absorbing liquid spray thrower, the spray of second level absorbing liquid
Device is drenched, the tower body inlet includes first order tower body inlet, second level tower body inlet；In the tower body from bottom to top according to
Secondary setting first order catalytic filler layer, first order absorbing liquid spray thrower, second level catalytic filler layer, second level absorbing liquid spray
Device, demisting packing layer；The first order tower body inlet is arranged on the pipeline of first order spray thrower connection, the second level tower
Body inlet is arranged on the pipeline of second level spray thrower connection.
4. exhaust treatment system according to claim 2, which is characterized in that the ozone causes the tower of free radical scrubbing tower
External shape is cylindrical body, and making material is glass reinforced plastic or polypropylene.
5. exhaust treatment system according to claim 2 or 3, which is characterized in that the ozone causes free radical scrubbing tower
Catalytic filler layer be made of hollow sphere and the catalyst that is placed in hollow sphere, hollow ball material is polypropylene；Catalyst shape
For sphere, the catalyst is made of active carbon, clay, iron filings, titanium dioxide, manganese dioxide.
6. exhaust treatment system according to claim 1, which is characterized in that the photic free radical catalytic oxidation
Device includes reactor cabinet, ultraviolet lamp group, catalyst layer；Reactor tank ends are respectively equipped with cabinet air inlet and cabinet outlet
Mouthful；According to gas flow direction, ultraviolet lamp group, is successively set in reactor cabinet catalyst layer.
7. exhaust treatment system according to claim 6, which is characterized in that the ultraviolet lamp group includes first order ultraviolet lamp
Group, the ultraviolet lamp group in the second level, the ultraviolet lamp group of the third level and the ultraviolet lamp group of the fourth stage, the catalyst layer include first order catalyst
Layer, second level catalyst layer, third level catalyst layer, fourth stage catalyst layer, according to gas flow direction, first order ultraviolet lamp
Group, first order catalyst layer, the ultraviolet lamp group in the second level, second level catalyst layer, the ultraviolet lamp group of the third level, third level catalyst
Layer, the ultraviolet lamp group of the fourth stage, fourth stage catalyst layer are successively set in reactor cabinet.
8. the exhaust treatment system according to claim 7 or 6, which is characterized in that the photic free radical catalysis oxidation
The ultraviolet lamp group of reactor is made of the U-shaped vacuum UV lamp that energy generation wavelength is 185nm, it is preferable that vacuum UV lamp is long
810mm。
9. exhaust treatment system according to claim 7, which is characterized in that the photic free radical catalytic oxidation
The first order catalyst layer of device, second level catalyst layer, third level catalyst layer are by absorbent-type TiO2-MnO2Honeycomb catalyst structure
At, it is preferable that TiO2-MnO2Honeycomb catalyst is using 100mm × 100mm × 50mm ceramic honey comb as carrier；The photic freedom
The fourth stage catalyst layer of base catalyst oxidation reactor is by absorbent-type MnO2Honeycomb catalyst is constituted, MnO2Honeycomb catalyst with
100mm × 100mm × 50mm ceramic honey comb is carrier.
10. a kind of method of exhaust-gas treatment emulsion foaming sponge production line mix waste gas, which comprises the following steps:
1) starting ozone cause the water circulating pump of free radical scrubbing tower, ozone machine, photic free radical catalyst oxidation reactor first
The ultraviolet lamp group of grade, the ultraviolet lamp group in the second level, the ultraviolet lamp group of the third level, the ultraviolet lamp group of the fourth stage and air-introduced machine；Absorbing liquid collecting tank
Before middle absorbing liquid enters absorbing liquid spray thrower by water circulating pump, pass through the ozone of ejector injection of ozone machine generation；
2) emulsion foaming sponge production line mix waste gas causes the tower body air inlet of free radical scrubbing tower to enter ozone cause by ozone
Free radical scrubbing tower, mix waste gas pass through the catalytic filler layer with adsorption capacity, dust, the NH of carrying3、H2S, more kinds of VOCs
The absorbing liquid that pollutant is sprayed in absorbing liquid spray thrower absorbs, catalyst absorbs, absorbing liquid carries ozone oxidation, catalyst week
Under the synergistic effect of the active component catalysis oxidation on side, largely it is degraded and is converted into harmless object, the dirt that fraction is not degraded
It contaminates object and is discharged with mixed airflow from tower body gas outlet；
3) mixed airflow enter photic free radical catalyst oxidation reactor, ultraviolet lamp group excitation oxidative free radical oxidation and
Under the synergistic effect of catalyst layer active component catalysis oxidation, the pollutant almost all not being degraded be degraded be converted into it is harmless
Object, clean mixed airflow are discharged into air-introduced machine from the reactor cabinet gas outlet of photic free radical catalyst oxidation reactor,
Introduce exhaust tube high altitude discharge.
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