CN104147885A - Paint-spraying waste gas integrated treatment method - Google Patents
Paint-spraying waste gas integrated treatment method Download PDFInfo
- Publication number
- CN104147885A CN104147885A CN201410415633.9A CN201410415633A CN104147885A CN 104147885 A CN104147885 A CN 104147885A CN 201410415633 A CN201410415633 A CN 201410415633A CN 104147885 A CN104147885 A CN 104147885A
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- Prior art keywords
- waste gas
- treatment
- gas
- treating apparatus
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- 239000002912 waste gas Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005507 spraying Methods 0.000 title claims abstract description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002904 solvent Substances 0.000 claims abstract description 13
- 238000010521 absorption reaction Methods 0.000 claims abstract description 12
- 238000001179 sorption measurement Methods 0.000 claims abstract description 8
- 238000001764 infiltration Methods 0.000 claims abstract description 7
- 230000008595 infiltration Effects 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 239000004922 lacquer Substances 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000010721 machine oil Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 238000007591 painting process Methods 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000001172 regenerating effect Effects 0.000 claims 1
- 239000003973 paint Substances 0.000 abstract description 7
- 239000003595 mist Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000809 air pollutant Substances 0.000 abstract description 2
- 231100001243 air pollutant Toxicity 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 239000007921 spray Substances 0.000 description 3
- 208000028659 discharge Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229940040145 liniment Drugs 0.000 description 1
- 239000000865 liniment Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention discloses a paint-spraying waste gas integrated treatment method. Waste gas produced in a paint-spraying process and containing paint mists and VOC is collected by a collecting hood, then is conveyed to a treatment device by a conveying pipeline and under the negative pressure action of a draught fan, and is up to standard for discharging after successively undergoing impact type dust-mist removal, solvent infiltration absorption, two-stage cyclone dust-mist removal and activated carbon adsorption treatment from bottom to top. The method organically combines various treatment technologies, not only achieves the integrated treatment of the paint mists and the VOC, but also has the advantages of simple and compact process equipment and structure and good treatment effect; and the waste gas after treatment can reach the ''integrated emission standard of air pollutants'' (GB16297-1996) second-grade emission standards, and the treatment efficiency of the VOC in the waste gas is high and can reach 99% or more.
Description
Technical field
The invention belongs to lacquer spraying waste gas processing technology field, particularly a kind of integral treatment method of lacquer spraying waste gas.
Background technology
In the prior art, at machinery, electrical equipment, household electrical appliances, automobile, boats and ships, extensive use lacquer spraying technique in the industries such as furniture, the adopted spray liniment that sprays paint is mainly paint, in production process, there is a certain amount of waste gas to arrange outward, the main component of waste gas is the organic pollution such as benzene and benzene homologues (being called for short VOC) of paint dust (coating cloud) and volatilization, cause environmental air pollution, must administer and reach environment protection emission requirement, therefore, the exhaust-gas treatment of paint spray booth is the important step in spraying production process, existing paint waste gas processing method mainly contains isolation method, combustion method, absorption process, condensation method, plasma low-temperature catalytic oxidation, absorption method etc., these methods all respectively have pluses and minuses, existing enterprise adopts single processing method mostly, liquid coating cloud and the insoluble in water VOC that can not realize in synchronous waste gas process, although some realizations the combination of several different methods, but it is long to exist technological process, equipment complexity, whole treatment system floor space is large, control inconvenient, the shortcomings such as treatment effect is not good.
Summary of the invention
The object of the invention is to solve the problem that prior art exists, design provides a kind of integral treatment method of lacquer spraying waste gas, the method organically combines lector mist, the technology such as dissolving, rotational flow dust-removing mist, activated carbon absorption that absorb, not only realize the integrated treatment of coating cloud and VOC, and process equipment simple structure, compactness, treatment effect is good, and whole treatment system can move as required or carry.
Technical scheme of the present invention is:
A kind of integral treatment method of lacquer spraying waste gas, after being collected by collecting hood containing the waste gas of coating cloud and VOC, painting process generation is transported in treating apparatus under air-introduced machine suction function by conveyance conduit, the impact type demister that described treating apparatus mainly sets gradually from bottom to up by housing and in housing, gas whirling device, activated carbon adsorption unit composition, waste gas enters in treating apparatus by air inlet, in treating apparatus, first utilize impact type demister to carry out sedimentation to the coating cloud in waste gas and fine dust, and utilize the solvent in housing bottom to come in contact infiltration and absorption reaction, regulate solvent level by liquid level regulation device, realize regulating simultaneously and control the reaction time, regulate the pressure in treating apparatus, gas through the processing of impact type demister and solvent infiltration and after absorbing continues to rise, utilize cyclonic action to remove oil droplet residual in gas and coating cloud dust by secondary gas swirl-flow devices, rise and enter activated carbon adsorption unit through gas whirling device gas after treatment, utilize the absorption property of activated carbon excellence to remove VOC, waste gas is after treatment emptying by exhaust outlet.
Described housing is the circular cylinder body of straight carbon steel, and the pressure limit in treating apparatus is 1.2～1.5 atmospheric pressure.
Described solvent is 10W-30 or 10W-40 type machine oil, after losing efficacy, adopts burning to process.
Described activated carbon was regenerated by Steam Heating mode after losing efficacy.
Beneficial effect of the present invention and advantage are:
This method organically combines lector mist, the technology such as dissolving, rotational flow dust-removing mist, activated carbon absorption that absorb, not only realize the integrated treatment of coating cloud and VOC, and process equipment simple structure, compactness, treatment effect is good, whole treatment system can move as required or carry, waste gas can reach " discharge standard of air pollutants " (GB16297-1996) secondary discharge standard after treatment, and the VOC treatment effeciency in waste gas is high, can reach more than 99%.
Brief description of the drawings
Fig. 1 is the inventive method process chart;
Fig. 2 is the treating apparatus structural representation that the present invention uses;
In figure: 1-housing, 2-exhaust outlet, 3-impact type demister, 301-lower baffle plate, 302 overhead gage 4-air inlets, 5-liquid level regulation device, 6-gas whirling device, 7-activated carbon adsorption unit.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, but the scope that should at this point not be interpreted as theme of the present invention only limits to following embodiment, without departing from the idea case in the present invention described above, all various amendments, replacement and changes of making according to ordinary skill knowledge and customary means, include within the scope of the invention.
As Fig. 1, shown in 2, a kind of integral treatment method of lacquer spraying waste gas, after being collected by collecting hood containing the waste gas of coating cloud and VOC, painting process generation is transported in treating apparatus under air-introduced machine suction function by conveyance conduit, the impact type demister 3 that described treating apparatus mainly sets gradually from bottom to up by housing 1 and in housing 1, gas whirling device 6, activated carbon adsorption unit 7 forms, waste gas enters in treating apparatus by air inlet 4, in treating apparatus, first utilize impact type demister 3 to carry out sedimentation to the coating cloud in waste gas and fine dust, and utilize the solvent in housing 1 bottom to come in contact infiltration and absorption reaction, regulate solvent level by liquid level regulation device 5, realize regulating simultaneously and control the reaction time, regulate the pressure in treating apparatus, gas through 3 processing of impact type demister and solvent infiltration and after absorbing continues to rise, utilize cyclonic action to remove oil droplet residual in gas and coating cloud dust by secondary gas swirl-flow devices 6, rise and enter activated carbon adsorption unit 7 through gas whirling device 6 gas after treatment, utilize the absorption property of activated carbon excellence to remove VOC, waste gas is after treatment emptying by exhaust outlet 2.
The circular cylinder body that described housing 1 is straight carbon steel, the pressure limit in treating apparatus is 1.2～1.5 atmospheric pressure.
Described solvent is 10W-30 or 10W-40 type machine oil, after losing efficacy, adopts burning to process.
Described activated carbon was regenerated by Steam Heating mode after losing efficacy.
Claims (4)
1. the integral treatment method of a lacquer spraying waste gas, it is characterized in that: after painting process generation is collected by collecting hood containing the waste gas of coating cloud and VOC, be transported in treating apparatus under air-introduced machine suction function by conveyance conduit, the impact type demister (3) that described treating apparatus mainly sets gradually from bottom to up by housing (1) and in housing (1), gas whirling device (6), activated carbon adsorption unit (7) composition, waste gas enters in treating apparatus by air inlet (4), in treating apparatus, first utilize impact type demister (3) to carry out sedimentation to the coating cloud in waste gas and fine dust, and utilize the solvent in housing (1) bottom to come in contact infiltration and absorption reaction, regulate solvent level by liquid level regulation device (5), realize regulating simultaneously and control the reaction time, regulate the pressure in treating apparatus, process through impact type demister (3), gas after solvent infiltration and absorption continues to rise, utilize cyclonic action to remove oil droplet residual in gas and coating cloud dust by secondary gas swirl-flow devices (6), rise and enter activated carbon adsorption unit (7) through gas whirling device (6) gas after treatment, utilize the absorption property of activated carbon excellence to remove VOC, waste gas is after treatment emptying by exhaust outlet (2).
2. the integral treatment method of lacquer spraying waste gas according to claim 1, is characterized in that the circular cylinder body that described housing (1) is straight carbon steel, and the pressure limit in treating apparatus is 1.2～1.5 atmospheric pressure.
3. the integral treatment method of lacquer spraying waste gas according to claim 1, is characterized in that described solvent is 10W-30 or 10W-40 type machine oil, after losing efficacy, adopts burning to process.
4. the integral treatment method of lacquer spraying waste gas according to claim 1, is characterized in that regenerating by Steam Heating mode after described activated carbon lost efficacy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415633.9A CN104147885A (en) | 2014-08-21 | 2014-08-21 | Paint-spraying waste gas integrated treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415633.9A CN104147885A (en) | 2014-08-21 | 2014-08-21 | Paint-spraying waste gas integrated treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104147885A true CN104147885A (en) | 2014-11-19 |
Family
ID=51873631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410415633.9A Pending CN104147885A (en) | 2014-08-21 | 2014-08-21 | Paint-spraying waste gas integrated treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104147885A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422622A (en) * | 2016-09-29 | 2017-02-22 | 重庆大学 | Pretreatment system and separation method for VOCs (volatile organic compounds) containing industrial paint mist |
| CN107670434A (en) * | 2017-09-30 | 2018-02-09 | 佛山市柏益环保设备有限公司 | A kind of spraying containing paint and VOCs exhaust treatment system |
| CN108926966A (en) * | 2018-07-19 | 2018-12-04 | 李田英 | A kind of exhaust gas combined treatment equipment and its treatment process containing coating cloud and VOCs |
| CN109499361A (en) * | 2018-12-28 | 2019-03-22 | 中科新天地（合肥）环保科技有限公司 | The exhaust device and technique of white domestic appliances industry are administered based on plasma technique |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2445798Y (en) * | 2000-08-25 | 2001-09-05 | 威海市龙润科技开发有限公司 | Impact fume/smoke purifier |
| CN2448439Y (en) * | 2000-07-17 | 2001-09-19 | 孙伊凡 | Vortex flow-guiding desulfurization dust remover |
-
2014
- 2014-08-21 CN CN201410415633.9A patent/CN104147885A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2448439Y (en) * | 2000-07-17 | 2001-09-19 | 孙伊凡 | Vortex flow-guiding desulfurization dust remover |
| CN2445798Y (en) * | 2000-08-25 | 2001-09-05 | 威海市龙润科技开发有限公司 | Impact fume/smoke purifier |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422622A (en) * | 2016-09-29 | 2017-02-22 | 重庆大学 | Pretreatment system and separation method for VOCs (volatile organic compounds) containing industrial paint mist |
| CN107670434A (en) * | 2017-09-30 | 2018-02-09 | 佛山市柏益环保设备有限公司 | A kind of spraying containing paint and VOCs exhaust treatment system |
| CN107670434B (en) * | 2017-09-30 | 2023-11-03 | 佛山市柏益环保设备有限公司 | Waste gas treatment system containing paint spray and VOCs |
| CN108926966A (en) * | 2018-07-19 | 2018-12-04 | 李田英 | A kind of exhaust gas combined treatment equipment and its treatment process containing coating cloud and VOCs |
| CN109499361A (en) * | 2018-12-28 | 2019-03-22 | 中科新天地（合肥）环保科技有限公司 | The exhaust device and technique of white domestic appliances industry are administered based on plasma technique |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141119 |