CN1509798A - Paint spraying exhaust treating process and apparatus thereof - Google Patents
Paint spraying exhaust treating process and apparatus thereof Download PDFInfo
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- CN1509798A CN1509798A CNA021497400A CN02149740A CN1509798A CN 1509798 A CN1509798 A CN 1509798A CN A021497400 A CNA021497400 A CN A021497400A CN 02149740 A CN02149740 A CN 02149740A CN 1509798 A CN1509798 A CN 1509798A
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- absorbent
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Abstract
A process for treating the waste gas generated by spraying paint includes such steps as washing the paint-spraying bench with water to remove the resin and paint particles, pumping the waste gas in filler absorbing tower in which the diesel oil or the lubricating oil No.5-10 is used as absorbent, fractionating the used absorbent while collecting the fraction under 160 deg.C for using it as diluent, and reusing the treated absorbent. Its equipment is composed of waste gas collector, filler absorbing tower, regenerated absorbent tank, and pipeline with exhaust blower and circulating pump.
Description
Affiliated technical field
The invention belongs to the lacquer spraying waste gas processing technology field, more specifically to the processing method and the equipment of lacquer spraying waste gas.
Background technology
Lacquer spraying waste gas contains two pollutant matter-a, tackifying resin particle, the organic volatile that the diluent of b, paint vehicle solvent, diluent and curing agent is formed, and its Main Ingredients and Appearance is nonpolar organic matters such as aromatic hydrocarbon, acetic acid lipid, ketone.The existing washing of the industry of spraying paint Paint spraying platform, it can remove the tackifying resin particle effectively, just be discharged in the atmosphere but the organic volatile that the diluent of paint vehicle solvent, diluent and curing agent is formed is unprocessed, serious environment pollution, near resident's the quality of life influence, the toxic emission that some producer is produced owing to spraying paint does not meet national standard and is complained repeatly, even is forced to stop production.The treatment process and the equipment of the domestic organic exhaust gas that does not at present also have thoroughly to handle in the painting process and produced.
Summary of the invention
Technical problem to be solved by this invention is not meet national standard and a kind of lacquer spraying waste gas treatment process and equipment are provided in order to overcome the direct discharging of waste gas that is produced of spraying paint, it is the treatment and purification waste gas that sprays paint and produced effectively, makes it to reach national specified discharge standard.
Technology solution of the present invention is as follows:
Technological principle of the present invention is to use with the unlimited liquid-absorbant that dissolves mutually of organic exhaust gas and carries out the mass transfer exchange with organic exhaust gas in packed absorber, and absorbent has absorbed organic exhaust gas, thereby discharges after making waste gas purification.
The lacquer spraying waste gas treatment process, at first lacquer spraying waste gas is earlier removed resin enamel paint particle through the washing Paint spraying platform, and then through following step process:
A, the waste gas after the washing Paint spraying platform is handled absorb under normal temperature, normal pressure with air exhauster suction packed absorber, and the used absorbent of packed absorber is 5～No. 10 lubricating oil;
B, when reaching 10-30%, the absorbent absorption strength changes absorbent again;
C, send into the distillation still distillation when absorbent absorbs the absorbent that organic exhaust gas concentration reaches 10-30%, collect cut below 160 ℃, still make diluent and use, it is standby to be fed back to reservoir after the absorbent cooling of handling through distillation.
The equipment of above-mentioned lacquer spraying waste gas treatment process, the lacquer spraying waste gas treatment facility, the lacquer spraying waste gas treatment facility comprises the washing Paint spraying platform, the top of washing Paint spraying platform is fixed with the gas sampling cover.The gas sampling cover links to each other with pipeline with the air intake of packed absorber, and this pipeline is provided with air exhauster; The bottom of packed absorber is provided with pipeline and the absorption liquid storage tank interlinks, and the top of packed absorber is provided with pipeline and the absorption liquid storage tank is connected, and on this pipeline circulating pump is housed.
Need change the spray agent when the spray agent in the absorption liquid storage tank absorbs when saturated, spraying agent simultaneously also needs the processing of regenerating, and is the structure when the said equipment and its absorbent treatment facility are linked together below.
The absorption liquid storage tank adds cartridge control valve to the pipeline of packed absorber, absorption liquid storage tank and saturated solution storage tank lead to pipeline, control valve is installed on the pipeline, saturated solution storage tank and distillation still pipeline lead to, the level height that the saturated solution storage tank is placed is higher than the height of distillation still, distillation still and condenser tubes are led to, condenser and dehydrator pipeline lead to, on this pipeline control valve is installed, condenser and solvent storage tank pipeline lead to, and the saturated solution storage tank is equipped with flowmeter to the pipeline of distillation still, and distillation still ejects the gas port place thermometer is housed, there are pipeline and absorption liquid to lead at the bottom of the distillation still, control valve and tubing pump are housed on this pipeline.
Above-mentioned distillation still is provided with liquid level and observes visor.
Outstanding effect of the present invention is: it can effectively remove the low-concentration organic exhaust gas that the diluent of the two pollutants matter that contains in the lacquer spraying waste gas-tackifying resin lacquer particle and paint vehicle solvent, diluent and curing agent is formed, and its Main Ingredients and Appearance is volatile organic compounds such as aromatic hydrocarbon, acetic acid lipid, ketone; Lacquer spraying waste gas after the present invention handles can reach discharging standards.
Description of drawings
Fig. 1 is the structural representation of treatment facility of the present invention;
Fig. 2 installs structural representation behind the regeneration of absorption solution treatment facility additional for the present invention;
Process chart when Fig. 3 is lubricating oil for absorbent of the present invention.
The specific embodiment
See Fig. 1,2, the lacquer spraying waste gas treatment facility comprises washing Paint spraying platform 1, and the top of washing Paint spraying platform 1 is fixed with the gas sampling cover, and the gas sampling cover links to each other with pipeline 1-2 with the air intake of packed absorber 2, and pipeline 1-2 is provided with air exhauster 12; The bottom of packed absorber 2 is provided with pipeline 2-3 and absorption liquid storage tank 3 interlinks, and the top of packed absorber 2 is provided with pipeline 3-2 and absorption liquid storage tank 3 is connected, and on the pipeline 3-2 circulating pump 23 is housed.On pipeline 3-2, add cartridge control valve 230, absorption liquid storage tank 3 leads to saturated solution storage tank 4 usefulness pipeline 3-4, control valve 34 is installed on the pipeline 3-4, saturated solution storage tank 4 leads to distillation still 5 pipeline 4-5, the level height that saturated solution storage tank 4 is placed is higher than the height of distillation still 5, distillation still 5 is led to condenser 6 pipeline 5-6, condenser 6 leads to dehydrator 8 pipeline 6-8, control valve 68 is installed on the pipeline 6-8, condenser 6 leads to solvent storage tank 7 usefulness pipeline 6-7, and distillation still 5 bottoms have pipeline 5-3 to be connected with absorption liquid storage tank 3, establish pump 53 on this pipeline 5-3, on pipeline 4-5, flowmeter is housed, ejects in distillation still thermometer is housed on the gas port.Distillation still 5 is provided with liquid level and observes visor 51.
The lacquer spraying waste gas treatment process, a, the waste gas after washing Paint spraying platform 1 is handled absorb with air exhauster 12 suction packed absorbers 2, circulating pump 23 is extracted into packed absorber 2 cats head spray with the absorption liquid in the absorption liquid storage tank 3 and absorbs organic exhaust gas, packed absorber 2 used absorbents are 5～No. 10 lubricating oil, and absorbent absorbs organic exhaust gas concentration and reaches at 20% o'clock and change absorbent again.B, absorption strength is reached 20% absorbent send into distillation still 5 distillations, collect cut below 160 ℃, still make diluent and use to solvent storage tank 7.It is standby to be recycled to reservoir 3 after the absorbent cooling through the distillation processing.Repeat to come and go the utilization again that reaches absorbent by above-mentioned steps, isolate diluent simultaneously.
Claims (3)
1, lacquer spraying waste gas treatment process, at first lacquer spraying waste gas is removed the lacquer type organic coating particle through the washing Paint spraying platform earlier, it is characterized in that:
A, the waste gas after the washing Paint spraying platform is handled absorb under normal temperature, normal pressure with air exhauster suction packed absorber, and the used absorbent of packed absorber is 5～No. 10 lubricating oil;
B, absorbent absorb changes absorbent again when organic exhaust gas concentration reaches 10-30%;
C, the absorbent that absorption strength is reached 10-30% are sent into the distillation still distillation, collect cut below 160 ℃, still make diluent and use, and are fed back to reservoir after the absorbent cooling of handling through distillation and make next round and absorb and use.
2, the used lacquer spraying waste gas treatment facility of lacquer spraying waste gas treatment process according to claim 1, comprise washing Paint spraying platform (1), the top of washing Paint spraying platform (1) is fixed with the gas sampling cover, it is characterized in that: the gas sampling cover links to each other with pipeline (1-2) with the air intake of packed absorber (2), and pipeline (1-2) is provided with air exhauster (12); The bottom of packed absorber (2) is provided with pipeline (2-3) and interlinks with absorption liquid storage tank (3), and the top of packed absorber (2) is provided with pipeline (3-2) and is connected with absorption liquid storage tank (3), and circulating pump (23) is housed on the pipeline (3-2); On pipeline (3-2), add cartridge control valve (230), absorption liquid storage tank (3) leads to pipeline (3-4) with saturated solution storage tank (4), control valve (34) is installed on the pipeline (3-4), saturated solution storage tank (4) leads to distillation still (5) pipeline (4-5), the level height that saturated solution storage tank (4) is placed is higher than the height of distillation still (5), distillation still (5) is led to condenser (6) pipeline (5-6), condenser (6) leads to dehydrator (8) pipeline (6-8), control valve (68) is installed on the pipeline (6-8), condenser (6) leads to pipeline (6-7) with solvent storage tank (7), distillation still (5) is led to pipeline (5-3) and absorption liquid storage tank (3), establish pump (53) on the pipeline (5-3), on pipeline (4-5) flowmeter is housed, distillation still (5) ejects gas port thermometer is housed.
3, lacquer spraying waste gas treatment facility according to claim 2 is characterized in that: distillation still (5) is provided with liquid level and observes visor (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021497400A CN1509798A (en) | 2002-12-25 | 2002-12-25 | Paint spraying exhaust treating process and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021497400A CN1509798A (en) | 2002-12-25 | 2002-12-25 | Paint spraying exhaust treating process and apparatus thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1509798A true CN1509798A (en) | 2004-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021497400A Pending CN1509798A (en) | 2002-12-25 | 2002-12-25 | Paint spraying exhaust treating process and apparatus thereof |
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| Country | Link |
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| CN (1) | CN1509798A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188880A (en) * | 2010-03-19 | 2011-09-21 | 中国石油化工股份有限公司 | Improved method for recycling volatile organic matter |
| CN101496981B (en) * | 2009-01-20 | 2011-11-09 | 郝璐 | Method for purifying methyl isobutyl ketone exhaust gas in vacuum system using waste compressor oil |
| CN102423605A (en) * | 2011-08-26 | 2012-04-25 | 莱州诚源盐化有限公司 | Recovery device and recovery method of tail gas of bromine packing |
| CN102580465A (en) * | 2012-01-16 | 2012-07-18 | 梁晓琳 | Application of heavy oil adsorption method in organic waste gas treatment and organic waste gas treatment device |
| CN102764565A (en) * | 2011-05-05 | 2012-11-07 | 艾特克控股集团有限公司 | Method for processing malodorous gas |
| CN104147904A (en) * | 2014-08-19 | 2014-11-19 | 衡水中科信能源有限公司 | Low-boiling-point substance recovering device during furfural production and technology thereof |
| CN104548875A (en) * | 2014-11-04 | 2015-04-29 | 华文蔚 | Method for purifying volatile organic poison gas |
| CN105233607A (en) * | 2015-10-28 | 2016-01-13 | 重庆嘉宇世纪塑业有限公司 | Sliding-type exhaust gas recycling system |
| CN106287114A (en) * | 2016-07-21 | 2017-01-04 | 四川追月科技有限责任公司 | A kind of vacuum heat-preservation thermal-insulation device |
| CN106621695A (en) * | 2016-11-21 | 2017-05-10 | 湖北绿色家园材料技术股份有限公司 | Method for treating and recycling tail gas produced during benzaldehyde production |
| CN110314494A (en) * | 2019-08-06 | 2019-10-11 | 福建省宇洲环保集团有限公司 | A kind of processing method of organic exhaust gas |
-
2002
- 2002-12-25 CN CNA021497400A patent/CN1509798A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101496981B (en) * | 2009-01-20 | 2011-11-09 | 郝璐 | Method for purifying methyl isobutyl ketone exhaust gas in vacuum system using waste compressor oil |
| CN102188880A (en) * | 2010-03-19 | 2011-09-21 | 中国石油化工股份有限公司 | Improved method for recycling volatile organic matter |
| CN102764565A (en) * | 2011-05-05 | 2012-11-07 | 艾特克控股集团有限公司 | Method for processing malodorous gas |
| CN102423605A (en) * | 2011-08-26 | 2012-04-25 | 莱州诚源盐化有限公司 | Recovery device and recovery method of tail gas of bromine packing |
| CN102580465A (en) * | 2012-01-16 | 2012-07-18 | 梁晓琳 | Application of heavy oil adsorption method in organic waste gas treatment and organic waste gas treatment device |
| CN104147904A (en) * | 2014-08-19 | 2014-11-19 | 衡水中科信能源有限公司 | Low-boiling-point substance recovering device during furfural production and technology thereof |
| CN104548875A (en) * | 2014-11-04 | 2015-04-29 | 华文蔚 | Method for purifying volatile organic poison gas |
| CN105233607A (en) * | 2015-10-28 | 2016-01-13 | 重庆嘉宇世纪塑业有限公司 | Sliding-type exhaust gas recycling system |
| CN106287114A (en) * | 2016-07-21 | 2017-01-04 | 四川追月科技有限责任公司 | A kind of vacuum heat-preservation thermal-insulation device |
| CN106621695A (en) * | 2016-11-21 | 2017-05-10 | 湖北绿色家园材料技术股份有限公司 | Method for treating and recycling tail gas produced during benzaldehyde production |
| CN110314494A (en) * | 2019-08-06 | 2019-10-11 | 福建省宇洲环保集团有限公司 | A kind of processing method of organic exhaust gas |
| CN110314494B (en) * | 2019-08-06 | 2021-12-28 | 福建省宇洲环保集团有限公司 | Organic waste gas treatment method |
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