CN108043216A - A kind of paint exhaust treatment device and method - Google Patents
A kind of paint exhaust treatment device and method Download PDFInfo
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- CN108043216A CN108043216A CN201711110486.4A CN201711110486A CN108043216A CN 108043216 A CN108043216 A CN 108043216A CN 201711110486 A CN201711110486 A CN 201711110486A CN 108043216 A CN108043216 A CN 108043216A
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- activated carbon
- exhaust gas
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- water
- carbon adsorption
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- 239000003973 paint Substances 0.000 title claims abstract description 42
- 238000011282 treatment Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 109
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000007789 gas Substances 0.000 claims abstract description 65
- 238000001179 sorption measurement Methods 0.000 claims abstract description 45
- 238000004140 cleaning Methods 0.000 claims abstract description 22
- 239000011490 mineral wool Substances 0.000 claims abstract description 17
- 230000015556 catabolic process Effects 0.000 claims abstract description 16
- 238000006731 degradation reaction Methods 0.000 claims abstract description 16
- 239000002912 waste gas Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000004064 recycling Methods 0.000 claims abstract description 13
- 238000003672 processing method Methods 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims abstract description 6
- 230000001351 cycling effect Effects 0.000 claims abstract description 3
- 239000003610 charcoal Substances 0.000 claims description 36
- 238000003795 desorption Methods 0.000 claims description 29
- 238000001914 filtration Methods 0.000 claims description 16
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 15
- 238000009833 condensation Methods 0.000 claims description 9
- 230000005494 condensation Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 238000007539 photo-oxidation reaction Methods 0.000 claims description 8
- 125000004122 cyclic group Chemical group 0.000 claims description 7
- 230000003197 catalytic effect Effects 0.000 claims description 6
- 239000004922 lacquer Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 125000002091 cationic group Chemical group 0.000 claims description 5
- 239000000701 coagulant Substances 0.000 claims description 5
- 239000003595 mist Substances 0.000 claims description 5
- OTEKOJQFKOIXMU-UHFFFAOYSA-N 1,4-bis(trichloromethyl)benzene Chemical class ClC(Cl)(Cl)C1=CC=C(C(Cl)(Cl)Cl)C=C1 OTEKOJQFKOIXMU-UHFFFAOYSA-N 0.000 claims description 3
- 238000002336 sorption--desorption measurement Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052753 mercury Inorganic materials 0.000 claims description 2
- 231100001234 toxic pollutant Toxicity 0.000 claims description 2
- 238000010410 dusting Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 238000000354 decomposition reaction Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 239000002250 absorbent Substances 0.000 description 8
- 230000002745 absorbent Effects 0.000 description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 230000037452 priming Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010504 bond cleavage reaction Methods 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002114 biscuit porcelain Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000008096 xylene 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
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- 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
- B01D53/007—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 irradiation
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Toxicology (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to a kind of paint exhaust treatment device and method, cleaned including dust, exhaust gas collected by collecting pipe after by cycling water curtain cleaning systems, dusting, curing；Baffle plate removes water；Mineral wool filters；Vacuum ultraviolet light degradation, waste gas decomposition；Activated carbon adsorption；Above step carries out in closed channel, and exhaust gas enters from collection conduit under air-introduced machine effect and discharged from blowdown stack；Activated carbon is desorbed；Simultaneously recycling design is condensed by shunting condenser.Present invention paint waste gas processing method is simple for process, and purifying rate is high, and two groups of activated carbons can be run simultaneously, can also isolated operation, effectively processing paint exhaust gas.
Description
Technical field
The present invention relates to paint exhaust-gas treatment field, more particularly, to a kind of paint exhaust treatment device and method.
Background technology
The exhaust gas that industrial activity generates is one of source for polluting environment.Work post work progress oil paint volatilization of painting is produced
The VOCs treatments such as raw voc (triphen), it is common to use " combustion method " and " active carbon adsorption ".The former is due to cost is excessive
It does not use generally, the latter is one of common method.But it often only rests on projects to start acceptance phase, really use
Greatest difficulty when the exhaust gas such as paint volatilization generates when constructing benzene,toluene,xylene in carry sticky particle secretly.It cannot expire
The various required cleaning ambients of emission-control equipment of foot, such as the activated carbon in activated carbon absorption plant, often by oiliness particle
Adhesion is blocking, and acceleration causes secondary pollution.The row of stealing that economic can not be used continuously and in line present situation are formed, often gives government's environmental protection
Department supervises and the enterprise operation of production and pollution administration causes very big puzzlement.More of the emission-control equipment of the prior art into
Row exhaust-gas treatment, shortcoming consideration in terms of cost, waste gas content is unstable or the big problem of amount, increase activated carbon second adsorption are imitated
Rate, activated carbon is of high cost, and fixed-end forces are costly, and service life is short, and paint exhaust-gas treatment is costly.
The content of the invention
It is an object of the invention to provide a kind of paint waste gas processing method, including
A kind of paint waste gas processing method, specific steps include:
(1) dust clean, exhaust gas collected by collecting pipe after through cycling water curtain cleaning systems, dusting, curing；
(2) baffling removes water, and the exhaust gas after dusting is removed the moisture carried secretly in exhaust gas by baffle plate；
(3) mineral wool filters, and exhaust gas further removes moisture and dust remaining in exhaust gas by mineral wool filtration system；
(4) vacuum ultraviolet light degradation drops the benzene in exhaust gas or hexichol class toxic pollutant under the low pressure close to vacuum
It solves as CO2And H2O；
(5) activated carbon adsorption, by the exhaust gas utilization activated carbon adsorption dedusting after vacuum-ultraviolet light degradation treatment；
(6) gas is discharged, and the exhaust gas after activated carbon adsorption dedusting is discharged under air-introduced machine effect from blowdown stack；
(7) activated carbon is desorbed, and periodically uses steam pressurization, condensation displacement will the charcoal canister that adsorb exhaust gas to saturation
Exhaust gas is desorbed and recycled in activated carbon, while another spare absorbent charcoal adsorption tank is switched to adsorbed state, avoids equipment
It shuts down；Absorbent charcoal adsorption tank-activated carbon desorption two groups of the using and the reserved of tank are used alternatingly, and line can produce, mutually switch online
Absorption or separating process, need not shut down；
(8) reuse, the charcoal canister after desorption is used into absorption exhaust gas in step (7) again.
Further, the recirculated water in the step (1) in Xun Huan water curtain system also added cationic liquid type coating cloud
Flocculating agent TH602A and cationic lacquer mist coagulant TH602B.
Further, vacuum-ultraviolet light degradation condition is in the step (4)：The a length of 185nm of ultraviolet light wave, low pressure mercury lamp
23W。
Further, activated carbon selects the activated carbon that specific surface area is 900-1000m/g in the step (5).
Further, air-introduced machine absorbing quantity is 45000~80000m in the step (6)3/ h, rated power 35KW.
A kind of paint exhaust treatment device, including water curtain cleaning system, deflector means, mineral wool filtration system, photooxidation
Change decomposition apparatus, cyclic water tank, booster pump, activated carbon adsorption and desorption system, air-introduced machine, circulating water cooling tower, steam generation
Device, condenser, the booster pump control loop water tank provide water curtain, water curtain cleaning system air outlet and oil to water curtain cleaning system
The collecting pipe air taking port of paint exhaust gas is connected, and the deflector means air inlet passes through pipeline and water curtain cleaning system air outlet phase
Even, the mineral wool filtration system air inlet is connected by pipeline with deflector means air outlet, the photooxidative degradation device
Air inlet is connected by pipeline with mineral wool filtration system air outlet, and the activated carbon adsorption and desorption system air inlet pass through pipe
Road is connected with photooxidation catalytic unit air outlet, and the air-introduced machine is arranged on the air outlet of activated carbon adsorption desorption system, described
Steam generator, condenser are connected respectively with activated carbon adsorption and desorption system, and the circulating water cooling tower is connected with condenser.
Further, the activated carbon adsorption and desorption system mainly include charcoal canister one, control valve, charcoal canister
2nd, recycling bins device is condensed, the charcoal canister one is connected by parallel pipeline with charcoal canister two and passes through control valve to be cut automatically
Adsorption tanks or desorption tank are changed to, the steam generator is connected with parallel pipeline and provided to activated carbon adsorption and desorption system high
For the charcoal canister one or charcoal canister two that are adsorbed to saturation to be desorbed, the condenser connects simultaneously pressure steam with parallel pipeline
The gas for desorbing release and steam mixed liquor by circulating water cooling tower are condensed and are delivered to condensation recycling bins.
Advantageous effect of the present invention：
1st, equipment manufacturing costs are low, easy to operate, maintenance is simple, equipment is used in operation without security risk；
2nd, equipment running cost is low, energy consumption also can be very low；
3rd, vacuum-ultraviolet light degradation equipment auxiliary mating accessory year is at low cost, and safety coefficient is high, no burning point risk；
4th, work efficiency is high；Vacuum-ultraviolet light degeneration system can work continuously, and activated carbon adsorption can design two groups, and (one with one
It is standby) connection line operation, continuous production need not shut down, and activated carbon tank body can switch separating process online；
5th, regenerating active carbon is reused, and extends the service life, reduces fixed-end forces cost advantages；
6th, exhaust gas organic matter recycling, for low side make paint or factory other with solvent or diluent machine demand, save production
Cost.
Description of the drawings
Fig. 1 is the paint exhaust treatment device structure diagram of the present invention.
Fig. 2 is the paint exhaust-gas treatment flow figure of the present invention.
Fig. 3 is the flow chart of present invention absorption and desorption.
In figure:1st, water curtain cleaning system；2nd, deflector means；3rd, mineral wool filtration system；4th, photooxidative degradation device；5、
Cyclic water tank；6th, booster pump；7th, activated carbon adsorption and desorption system；71st, safety valve；8th, air-introduced machine；9th, collecting pipe；10th, cigarette
Chimney；11st, condenser；12nd, recycling bins are condensed；13rd, steam generator；14th, circulating water cooling tower；15th, charcoal canister one；16th, it is living
Property canister two.
Specific embodiment
- 3 are please referred to Fig.1, the invention discloses a kind of paint exhaust treatment device, including collecting pipe 9, water curtain cleaning system
System 1, deflector means 2, mineral wool filtration system 3, photooxidative degradation device 4, cyclic water tank 5, booster pump 6, activated carbon adsorption
And desorption system 7, air-introduced machine 8, the 6 control loop water tank 5 of booster pump provide continuous water curtain, water to water curtain cleaning system 1
Curtain cleaning system air outlet is connected with painting 9 air taking port of collecting pipe of exhaust gas, and 2 air inlet of deflector means passes through pipeline
It is connected with 1 air outlet of water curtain cleaning system, 3 air inlet of mineral wool filtration system passes through pipeline and 2 outlet air of deflector means
Mouth is connected, and 4 air inlet of photooxidation catalytic unit is connected by pipeline with 3 air outlet of mineral wool filtration system, the activity
Charcoal adsorbs and 7 air inlet of desorption system is connected by pipeline with 4 air outlet of photooxidation catalytic unit, and the air-introduced machine 8 is arranged on
The air outlet of activated carbon adsorption desorption system 7.
The activated carbon adsorption and desorption system 7 mainly include charcoal canister 1, control valve, charcoal canister 2 16, cold
Solidifying recycling bins 12, condenser 11, steam generator 13, charcoal canister 1 are arranged at activated carbon adsorption with charcoal canister 2 16
And it is connected in desorption system 7 and by parallel pipeline, charcoal canister 1 and charcoal canister 2 16 is automatically switched by control valve
It is used alternatingly for adsorption tanks or desorption tank, charcoal canister 1 with charcoal canister 2 16, prevents equipment downtime.The steam generation
Device 13 connects charcoal canister 1 or the desorption of charcoal canister 2 16 for providing that high steam will be adsorbed to saturation with parallel pipeline, by
The substance adsorbed in activated carbon is desorbed out, and the condenser 11 connects with parallel pipeline and will desorb the gas and steam of release
Mixed liquor is delivered to condensation recycling bins 12 by the condensation of circulating water cooling tower 14.
Present invention paint exhaust-gas treatment detailed process is as shown in Fig. 2, specific steps include：
(1) dedusting is washed：Recirculated water addition liquid cationic lacquer mist coagulant TH602A and sun into cyclic water tank 5
Ionic lacquer mist coagulant TH602B paints special curing agent, is uniformly mixed and by the recirculated water multistage filtering of cleaning, paint
After exhaust gas is collected by collecting pipe 9, into water curtain cleaning system 1,6 control loop water tank 5 of booster pump is to water curtain cleaning system 1
It sprays water and forms curtain and exhaust gas is carried out sufficiently to clean, is cured, dusting；
(2) baffling removes water, and exhaust gas is delivered to deflector means 2 removes what is carried secretly in exhaust gas by the multiple baffling of baffle plate
Moisture, and enter subsequent processing；
(3) effects of demand is reached in order to ensure to clean coating cloud bisque, exhaust gas again passes by glass after over cleaning, water removal
Cotton filtration system 3 further removes residual moisture and dust in exhaust gas, into photooxidation catalytic unit 4；
(4) vacuum ultraviolet light degradation：Exhaust gas is fully degraded into CO2 and H2O in low vacuum, a length of 185nm of ultraviolet light wave.
Degradation principles：Vacuum ultraviolet just under the low pressure close to vacuum, the halide of rare gas or rare gas and generate
185nm ultraviolet wavelengths carry out exhaust gas light radiation, while oxygen and the hydroxyl and ozone of water generation strong oxidizing property in air,
After enhancing the material absorbings ultraviolet radiation power such as the organic matter benzene in exhaust gas, hexichol, triphen, scission of link open loop is decomposed into small
Micel, i.e., by ozone oxidation into carbon dioxide and water, the small organic molecule group not being completely broken down purifies rank into photodissociation
Section by length ultraviolet line scission of link, forms carbon dioxide and the purification of water twin-stage, it is ensured that spraying organic exhaust gas purification up to standard, specifically
Scheme can be found in what in November, 2008 Song Yan dragons et al. were delivered《The Research Literature of vacuum ultraviolet light degradation benzene》；
(5) activated carbon adsorption and desorption：After photooxidation catalytic treatment, at least obtain 80% exhaust gas and be decomposed,
Remaining exhaust gas is handled using activated carbon adsorption and desorption system 7, in the hope of meeting equipment treatment effect qualified discharge mesh
's；
(6) air inducing is discharged:Above step carries out in closed channel, and exhaust gas is under the effect of air-introduced machine 8, from collecting pipe
It is discharged into exhaust treatment system equipment, and from 15 meters or more blowdown stacks 10.In order to meet emission request, blowdown stack 10
At least 15 meters from bottom surface or more of outlet；
(7) regenerating active carbon is desorbed:Activated carbon passes through the adsorption saturation phase, and periodically carrying out desorption using steam pressurization puts
It changes, is given simultaneously in steam pressurization saturation certain pressure and slowly discharge into condenser 11 and replace, the activated carbon adsorption and de-
Attached system 7 is additionally provided with safety valve 71, prevents air pressure from crossing huge explosion, it is 900-1000m/g that the activated carbon, which selects specific surface area,
Work；Property charcoal；
(8) organic matter condensation recycling:It is desorbed steam and heat exchange is carried out using condenser 11, condensate liquid is sent to circulating water
Tower 14 is condensed and recycled by recycling bins 12；
Absorption is as shown in Figure 3 with desorption process：Absorbent charcoal adsorption tank 1 is controlled with absorbent charcoal adsorption tank 2 16 by valve
Automatically switch.For example, when one 15 adsorption saturation of absorbent charcoal adsorption tank, valve control is switched it into desorption system, and activated carbon is inhaled
Attached tank 2 16 is switched in adsorption system, and steam generator 13 continuously provides high pressure to absorbent charcoal adsorption tank 1 at this time
Steam makes the gas or liquid that are adsorbed in absorbent charcoal adsorption tank 1 be desorbed out, and at the same time, condenser 11 will be desorbed out
The gas-liquid mixture condensation come, which is sent to circulating water cooling tower 14, to condense and is recycled by recycling bins 12.Water level report is equipped in cyclic water tank 5
Alarm device, priming device and deslagging device.
The present invention is filled to three kinds of varnish, priming paint, colored paint paint gas samplings and using present invention paint exhaust-gas treatment respectively
It puts processing, paints in exhaust gas that the concentration of non-methane total hydrocarbons is 69.1mg/m in varnish at collecting pipe 93, particle concentration is
18.2mg/m3；The concentration of non-methane total hydrocarbons is 14.8mg/m in priming paint at collecting pipe 9 in paint exhaust gas3, particle concentration is
17.7mg/m3；The concentration of non-methane total hydrocarbons is 230mg/m in colored paint at collecting pipe 9 in paint exhaust gas3, particle concentration is
17.6mg/m3, by using the paint exhaust treatment device of the present invention, waste gas purification rate can reach 80%.
Air containing coating cloud enters gas-water channel after being hit with water curtain, through water curtain, is generated with the water in passage
Strong mixing, then baffling removes water successively, and flow velocity reduces suddenly, and gas-water separation, after air is by baffling water fender, water curtain is clear
It washes system 1 treated in lacquer spraying waste gas also containing a large amount of particulate matters, it, need to will be useless to prevent from blocking consequent activities carbon purifying facility
Gas is further passed through mineral wool filtration system 3 and further removes purification to paint particle object.Mineral wool filtration system 3 is also coating cloud
Felt, resistance paint net, resistance paint cotton, the fluffy felt of glass fibre, paint filter screen, by the continuous monofilament of high intensity, glass fibre composition is in
It is incremented by structure, catch rate is high, coating cloud isolation effect is good；Good compression property can keep its external form constant, then be dropped by photooxidation
4 oxygenolysis of device is solved, is further pumped by air-introduced machine 8 in activated carbon adsorption and desorption system 7；Activated carbon adsorption principle：It adopts
Raw material is crushed by physics and chemical method with the activated carbon that specific surface area is 900-1000m/g, is sieved, catalyst is lived
The series of processes such as change, rinsing, drying and screening fabricate.Activated carbon has the dual of physical absorption and chemisorbed
Characteristic can selectively adsorb the various substances in gas phase, liquid phase, be purified with reaching decolorizing and refining, disinfecting, deodorizing and decontamination
The purpose of.Active carbon adsorption is exactly by the use of activated carbon as physical absorbent, the nuisance generated in electrostatic spray process
Matter ingredient, is concentrated in solid phase surface, so as to obtain the effect of waste gas purification improvement.This adsorption process is in solid phase-gas
The physical process that interphase interface occurs.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every utilization
It is related to be directly or indirectly used in other for the equivalent structure or equivalent flow shift that description of the invention and accompanying drawing content are made
Technical field, be included within the scope of the present invention.
Claims (7)
1. a kind of paint waste gas processing method, which is characterized in that include the following steps：(1) dust cleans, and exhaust gas is by collecting pipe
By cycling water curtain cleaning systems after collection；(2) baffling removes water, and the exhaust gas after cleaning is removed water by baffle plate multiple baffling
Point；(3) mineral wool filters, and exhaust gas further removes moisture and dust remaining in exhaust gas by mineral wool filtration system；(4) it is true
Empty ultraviolet degradation drops the benzene in exhaust gas or hexichol class toxic pollutant under the conditions of the low pressure UV close to vacuum completely
It solves as CO2And H2O；(5) activated carbon adsorption, by the activated carbon adsorption dedusting of the exhaust gas after vacuum-ultraviolet light degradation treatment；
(6) gas is discharged, and the exhaust gas after activated carbon adsorption dedusting is discharged under air-introduced machine effect from blowdown stack；(7) activated carbon takes off
It is attached, the charcoal canister periodicity for adsorbing exhaust gas to saturation is desorbed exhaust gas in activated carbon simultaneously using steam pressurization, condensation displacement
Recycling, while another spare charcoal canister is switched to adsorption tanks absorption exhaust gas, avoid equipment downtime；(8) reuse,
Charcoal canister after desorption is switched to adsorption tanks absorption exhaust gas again.
2. a kind of paint waste gas processing method according to claim 1, it is characterised in that：Recirculated water in the step (1)
Recirculated water in curtain system also added cationic liquid type lacquer mist coagulant TH602A and cationic lacquer mist coagulant
TH602B。
3. a kind of paint waste gas processing method according to claim 1, it is characterised in that：Vacuum is purple in the step (4)
Outer light degradation condition is：The a length of 185nm of ultraviolet light wave, low pressure mercury lamp 23W.
4. a kind of paint waste gas processing method according to claim 1, it is characterised in that：Activated carbon in the step (5)
Select the activated carbon that specific surface area is 900-1000m/g.
5. a kind of paint waste gas processing method according to claim 1, it is characterised in that：Air-introduced machine in the step (6)
Absorbing quantity is 45000~80000m3/ h, rated power 35KW.
6. a kind of utilize the paint exhaust treatment device that waste gas processing method is painted described in claim 1, it is characterised in that：Including
Collecting pipe, water curtain cleaning system, deflector means, mineral wool filtration system, photooxidative degradation device, cyclic water tank, supercharging
Pump, activated carbon adsorption and desorption system, air-introduced machine, circulating water cooling tower, steam generator, condenser, the booster pump control
Cyclic water tank provides water curtain to water curtain cleaning system, and water curtain cleaning system air outlet is connected with the collecting pipe air taking port of exhaust gas,
The deflector means air inlet is connected by pipeline with water curtain cleaning system air outlet, the mineral wool filtration system air inlet
It is connected by pipeline with deflector means air outlet, the photooxidative degradation device air inlet is by pipeline and mineral wool filtering
System air outlet is connected, and the activated carbon adsorption and desorption system air inlet pass through pipeline and photooxidation catalytic unit air outlet phase
Even, the air-introduced machine is arranged on the air outlet of activated carbon adsorption desorption system, the steam generator, condenser respectively with activity
Charcoal adsorbs and desorption system connection, the circulating water cooling tower are connected with condenser.
7. a kind of paint exhaust treatment device according to claim 6, it is characterised in that：The activated carbon adsorption and desorption
System mainly includes charcoal canister one, control valve, charcoal canister two, condensation recycling bins device, the charcoal canister one and activated carbon
Tank two be connected by parallel pipeline and pass through control valve automatically switches to adsorption tanks or desorption tank, the steam generator with it is in parallel
Pipeline connects and provides high steam to activated carbon adsorption and desorption system for that will be adsorbed to the charcoal canister one of saturation or living
Property canister two desorb, the condenser connected with parallel pipeline and will desorb release gas and steam mixed liquor pass through recirculated water
Cooling tower condenses and is delivered to condensation recycling bins.
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| CN201711110486.4A CN108043216A (en) | 2017-11-12 | 2017-11-12 | A kind of paint exhaust treatment device and method |
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| CN201711110486.4A CN108043216A (en) | 2017-11-12 | 2017-11-12 | A kind of paint exhaust treatment device and method |
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| CN108043216A true CN108043216A (en) | 2018-05-18 |
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| CN201711110486.4A Pending CN108043216A (en) | 2017-11-12 | 2017-11-12 | A kind of paint exhaust treatment device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108993113A (en) * | 2018-09-07 | 2018-12-14 | 山东百川同创能源有限公司 | A kind of the Alternative combined system and method for organic exhaust gas odor treatment |
| CN115608104A (en) * | 2022-12-15 | 2023-01-17 | 山东尚维医疗用品有限公司 | System and method for separating water vapor and tobacco tar and recovering viscosity reducer |
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| CN107051109A (en) * | 2017-04-20 | 2017-08-18 | 东莞德尔激光科技有限公司 | Exhaust treatment system |
| CN107362647A (en) * | 2017-09-06 | 2017-11-21 | 上海瑞尔实业有限公司 | A kind of paint exhaust treatment device and method |
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| CN106693573A (en) * | 2016-12-01 | 2017-05-24 | 易能环境技术有限公司 | Purifying device and method for spraying industry VOCs exhaust gas |
| CN107051109A (en) * | 2017-04-20 | 2017-08-18 | 东莞德尔激光科技有限公司 | Exhaust treatment system |
| CN107362647A (en) * | 2017-09-06 | 2017-11-21 | 上海瑞尔实业有限公司 | A kind of paint exhaust treatment device and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108993113A (en) * | 2018-09-07 | 2018-12-14 | 山东百川同创能源有限公司 | A kind of the Alternative combined system and method for organic exhaust gas odor treatment |
| CN115608104A (en) * | 2022-12-15 | 2023-01-17 | 山东尚维医疗用品有限公司 | System and method for separating water vapor and tobacco tar and recovering viscosity reducer |
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Application publication date: 20180518 |
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