CN102872691A - Paint waste gas treatment process - Google Patents
Paint waste gas treatment process Download PDFInfo
- Publication number
- CN102872691A CN102872691A CN2012103580349A CN201210358034A CN102872691A CN 102872691 A CN102872691 A CN 102872691A CN 2012103580349 A CN2012103580349 A CN 2012103580349A CN 201210358034 A CN201210358034 A CN 201210358034A CN 102872691 A CN102872691 A CN 102872691A
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- Prior art keywords
- waste gas
- treatment process
- gas treatment
- paint waste
- air
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002912 waste gas Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000003973 paint Substances 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000007789 gas Substances 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 239000000428 dust Substances 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 230000001939 inductive effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 230000037452 priming Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000746 purification Methods 0.000 abstract description 6
- 239000007921 spray Substances 0.000 abstract description 4
- 239000010815 organic waste Substances 0.000 abstract description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 8
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 6
- 239000004922 lacquer Substances 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000007084 catalytic combustion reaction Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000002336 sorption--desorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- -1 NMHC Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The invention provides a paint waste gas treatment process with stable operating effect and low cost. The paint waste gas treatment process comprises the following steps of: (1) removing dust, namely collecting paint waste gas by using a pipeline, and filtering and removing dust by using an air filter; (2) performing circulating water cooling, namely cooling the waste gas subjected to dust removal through a channel provided with a water cooling pipeline; (3) performing plasma purification, namely allowing the waste gas to pass through a low temperature plasma purifier, and making the organic waste gas perform glow discharge through ultrahigh pressure pulse corona, so that the organic waste gas is converted into CO2 and H2O; and (4) exhausting by using induced air. The steps are carried out in a closed channel, and the waste gas enters through a collection pipeline and is exhausted through an exhaust stack under the action of an induced draft fan. The invention has the advantages that 1) the process is simple and quick, and the purifying rate is high; 2) multi-path equipment works simultaneously to match a multiple spray process in a mirror production line; 3) the equipment is convenient to use, is started and used at any time without preheating process, and the waste gas treatment is started as long as a spray chamber starts working; and 4) the operating cost is low, the operating state is stable, and the cost is low.
Description
Technical field
The present invention relates to a kind of paint waste gas treatment process that is applied to mirror production line processed.
Background technology
The spray paint waste gas of generation of process of mirror processed mainly is toluene, dimethylbenzene, NMHC, and its chemical constituent is complicated, and the raw material of product is different, and composition and concentration differ, the As-Is analysis data that can only administer by present industry.What wherein mainly need control is the contained ratio of toluene and dimethylbenzene.In addition, add in polishing table polishing and also can produce simultaneously dust waste gas man-hour.The VOCs treatment method that generally adopts both at home and abroad at present mainly contains heat accumulating type catalytic combustion method, adsorption/desorption catalyzing method, and adsorption/desorption catalyzing method use cost is higher, and the long-time running effect is unstable, undulate, invest higher, complex management, secondary pollution is arranged, belong to traditional handicraft; And the used equipment investment of heat accumulating type catalytic combustion method is higher, and floor space is large, safeguards complicatedly, needs the professional to control, and the limitation high-concentration waste gas is main, needs preheating, and heat loss is serious.
Technique by the plasma purifier purification has appearred during air off gas is processed at present, plasma organic waste gas purifier operation principle: use the super-high pressure pulse corona technology, when there being face waste gas to enter in the high voltage electric field module, the high voltage electric field generator is under the impulse electric corona effect of operating voltage, strong glow discharge occurs, spread all over strong purple light in the electricity piece template, organic matter in the organic exhaust gas is under strong purple light effect, can be within the extremely short time (ns), waste gas moment is activated, the free energy surge becomes anakmetomeres, these activation divided in the moment that frequent impact occurs, and kinetic transformation were become intramolecular potential energy, original chemical bond fracture, generate new harmless single atomic gas, thereby reach the purification purpose.After reaction, harmful HC compound is converted into nontoxic CO2 and H2O, but the paint exhaust-gas treatment of plasma purification applications in mirror technique processed also exists corresponding problem to need to solve, and be large such as paint exhaust-gas treatment air quantity, EGT is high, have water smoke (waste gas that enters plasma purifier should avoid there is hydrone as far as possible) etc. in the waste gas.
Summary of the invention
The present invention is directed to prior art and have defects, adopt the plasma purification method, the paint waste gas treatment process that a kind of operational effect is stable, cost is low is provided.
The present invention is achieved through the following technical solutions:
The lacquer waste gas treatment process may further comprise the steps: (1) dedusting, and paint waste gas is collected by the air cleaner dust removal by filtration by pipeline; (2) recirculated water cooling, the waste gas after the dedusting is by being furnished with the passage cooling of water cooled pipeline; (3) plasma purifies, and waste gas is by low-temperature plasma purifier, and by the super-high pressure pulse corona, organic exhaust gas glow discharge is converted into
With
(4) air inducing is discharged; Above step is all carried out in closed channel, and waste gas enters and discharges from blowdown stack from collection conduit under the air-introduced machine effect.
Further, described step (1) Air filter element material is glass fibre and offset paper; Its initial resistance 230～240Pa, dust containing capacity are 500～1000g.
Further, the waste gas initial temperature is 100～105 ° of C in the described step (2), and the temperature behind recirculated water cooling is 55～60 ° of C.
Further, air-introduced machine air inducing amount is 50000～70000 in the described step (4)
, rated power is 37KW.
Further, the outlet of blowdown stack overhead highly is 15～18m in the described step (4).
Further, the concentration of nuisance in the porch in the paint waste gas is 150～200
For adapting to the multi-coat lacquer technique in the mirror production line processed, the present invention adopts following further scheme: by at least two pipeline equipments difference completing steps (1)～step (4), wherein be that the circulating water pool that step (2) supplies water shares, recirculated water flows back to circulating water pool through anti-corrosion centrifugal pump, cooling tower, water cooled pipeline successively from circulating water pool.
Further, be provided with level alarm for water, priming device and deslagging device in the circulating water pool.
Further, the air cleaner in the step (1) and the water cooled pipeline in the step (2) all are arranged in the spindle gas wash tower of vertical placement; The gas wash tower top connects the plasma purifier of laterally placing by closed conduct, and the entrance and exit of plasma purifier arranges respectively the tubaeform connector to the plasma purifier interior expansion, and the processing air quantity of plasma purifier is 60000～80000
Air-introduced machine is arranged in the blowdown stack for completing steps (4).
Be easy to assembly and assurance seal, the interconnective port of gas wash tower, plasma purifier and blowdown stack is provided with the retractable and flexible Petrochemical Pipe Joints.
Compared with prior art, beneficial effect of the present invention is: 1) technique is simply rapid, and purifying rate is high; 2) multichannel equipment moves simultaneously, to cooperate the multi-coat lacquer technique in the mirror production line processed; 3) equipment is easy to use, and at any time start is used at any time, does not need warm, as long as start working in the spray room, exhaust-gas treatment is enabled thereupon; 4) operating cost is low, and running status is stable, and cost is low.
Description of drawings
Fig. 1 is the structural representation for the treatment of facility of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail:
With reference to Fig. 1, the lacquer waste gas treatment process is characterized in that may further comprise the steps: (1) dedusting, and paint waste gas is collected by the air cleaner dust removal by filtration by pipeline; (2) recirculated water cooling, the waste gas after the dedusting is by being furnished with the passage cooling of water cooled pipeline; (3) plasma purifies, and waste gas is by low-temperature plasma purifier 2, and by the super-high pressure pulse corona, organic exhaust gas glow discharge is converted into
With
(4) air inducing is discharged; Above step is all carried out in closed channel, and waste gas enters and discharges from blowdown stack 6 from collection conduit under air-introduced machine 3 effect.Relevant device only arranges opening in waste gas introducing place and discharge place.
Described step (1) Air filter element material is glass fibre and offset paper; Its initial resistance 230～240Pa, dust containing capacity are 500～1000g, and the material of above-mentioned filter core and parameter are chosen in the mirror production line exhaust-gas treatment processed optimum, satisfy various operating mode needs, long service life, and maintenance cost is low.
The waste gas initial temperature is 100～105 ° of C in the described step (2), and the temperature behind recirculated water cooling is 55～60 ° of C, enters plasma purifier after being reduced to EGT in this scope and just can reach better clean-up effect.
Air-introduced machine air inducing amount is 50000～70000 in the step in the present embodiment (4)
, rated power is 37KW.Adaptability is good, and clean-up effect and purification speed significantly improve.For satisfying relevant emission standards, the outlet of blowdown stack 6 overhead highly is 15～18m in the described step (4).
The concentration of nuisance in the porch in the paint waste gas is 150～200
Nuisance is mainly benzene, toluene and dimethylbenzene, accounts for more than 95% of whole nuisances.
Shown in Fig. 1, for adapting to the multi-coat lacquer technique in the mirror production line processed, the present invention adopts following further scheme: by at least two pipeline equipments difference completing steps (1)～step (4), wherein be that the circulating water pool 4 that step (2) supplies water shares, recirculated water flows back to circulating water pool 4 through anti-corrosion centrifugal pump 5, cooling tower, water cooled pipeline successively from circulating water pool 4.To guarantee the stable operation of water-cooled step.
Be provided with level alarm for water, priming device and deslagging device in the circulating water pool 4.There is the water evaporation in the Cooling Process, therefore level alarm for water is reported to the police when water level is lower than setting value, makes by priming device that water level meets the requirements in the circulating water pool, and circulation is long-term also can to form waste residue after using, so being set, deslagging device automatically removes waste residue, unobstructed to guarantee the water route.
In the present embodiment, the water cooled pipeline in the air cleaner in the step (1) and the step (2) all is arranged in the spindle gas wash tower 1 of vertical placement; Gas wash tower 1 top connects the plasma purifier 2 of laterally placing by closed conduct, and the entrance and exit of plasma purifier 2 arranges respectively the tubaeform connector to the plasma purifier interior expansion, and the processing air quantity of plasma purifier 2 is 60000～80000
Air-introduced machine is arranged in the blowdown stack for completing steps (4).
Be easy to assembly and assurance seal, the interconnective port of gas wash tower 1, plasma purifier 2 and blowdown stack 6 is provided with the retractable and flexible Petrochemical Pipe Joints.
Although the present invention illustrates and describes by the reference preferred embodiment,, those of ordinary skills should understand, and can be not limited to the description of above-described embodiment, in the scope of claims, can do the various variations on form and the details.
Claims (10)
1. paint waste gas treatment process is characterized in that may further comprise the steps: (1) dedusting, and paint waste gas is collected by the air cleaner dust removal by filtration by pipeline; (2) recirculated water cooling, the waste gas after the dedusting is by being furnished with the passage cooling of water cooled pipeline; (3) plasma purifies, and waste gas is by low-temperature plasma purifier, and by the super-high pressure pulse corona, organic exhaust gas glow discharge is converted into
With
(4) air inducing is discharged; Above step is all carried out in closed channel, and waste gas enters and discharges from blowdown stack from collection conduit under the air-introduced machine effect.
2. paint waste gas treatment process according to claim 1, it is characterized in that: described step (1) Air filter element material is glass fibre and offset paper; Its initial resistance 230～240Pa, dust containing capacity are 500～1000g.
3. paint waste gas treatment process according to claim 1 is characterized in that: the waste gas initial temperature is 100～105 ° of C in the described step (2), and the temperature behind recirculated water cooling is 55～60 ° of C.
4. paint waste gas treatment process according to claim 1 is characterized in that: air-introduced machine air inducing amount is 50000～70000 in the described step (4)
, rated power is 37KW.
5. paint waste gas treatment process according to claim 1 is characterized in that: the outlet of blowdown stack overhead highly is 15～18m in the described step (4).
6. paint waste gas treatment process according to claim 1 is characterized in that: the concentration of nuisance in the porch in the paint waste gas is 150～200
7. according to claim 1 to 6 each described paint waste gas treatment process, it is characterized in that: by at least two pipeline equipments difference completing steps (1)～step (4), wherein be that the circulating water pool that step (2) supplies water shares, recirculated water flows back to circulating water pool through anti-corrosion centrifugal pump, cooling tower, water cooled pipeline successively from circulating water pool.
8. paint waste gas treatment process according to claim 7 is characterized in that: be provided with level alarm for water, priming device and deslagging device in the circulating water pool.
9. according to claim 1 to 6 each described paint waste gas treatment process, it is characterized in that: the water cooled pipeline in the air cleaner in the step (1) and the step (2) all is arranged in the spindle gas wash tower of vertical placement; The gas wash tower top connects the plasma purifier of laterally placing by closed conduct, and the entrance and exit of plasma purifier arranges respectively the tubaeform connector to the plasma purifier interior expansion, and the processing air quantity of plasma purifier is 60000～80000
Air-introduced machine is arranged in the blowdown stack for completing steps (4).
10. paint waste gas treatment process according to claim 9, it is characterized in that: the interconnective port of gas wash tower, plasma purifier and blowdown stack is provided with the retractable and flexible Petrochemical Pipe Joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210358034.9A CN102872691B (en) | 2012-09-24 | 2012-09-24 | Paint waste gas treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210358034.9A CN102872691B (en) | 2012-09-24 | 2012-09-24 | Paint waste gas treatment process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102872691A true CN102872691A (en) | 2013-01-16 |
| CN102872691B CN102872691B (en) | 2014-09-17 |
Family
ID=47474338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210358034.9A Expired - Fee Related CN102872691B (en) | 2012-09-24 | 2012-09-24 | Paint waste gas treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102872691B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071376A (en) * | 2013-01-24 | 2013-05-01 | 江苏新阪神太阳能有限公司 | Waste gas treatment device |
| CN103736351A (en) * | 2014-01-13 | 2014-04-23 | 苏州克利亚环保科技有限公司 | Painting-waste-gas treating device |
| CN105233646A (en) * | 2015-11-18 | 2016-01-13 | 温州伟诚环保科技有限公司 | Organic waste gas treatment device |
| CN105983300A (en) * | 2015-01-31 | 2016-10-05 | 福建省首融环境科技有限公司 | Treatment process for paint exhaust gas |
| CN108325328A (en) * | 2018-04-25 | 2018-07-27 | 济南永新环境科技有限公司 | It is melt into the ultra-clean abatement equipment of fine exhaust gas integration and its application method |
| CN110270570A (en) * | 2018-03-14 | 2019-09-24 | 上海强精金属制品有限公司 | A kind of spraying waste gas recovery utilizes system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327719A (en) * | 2011-07-23 | 2012-01-25 | 天津天任车料有限公司 | System and method for treating exhaust gas generated during varnish baking by using water for industrial cycle |
-
2012
- 2012-09-24 CN CN201210358034.9A patent/CN102872691B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102327719A (en) * | 2011-07-23 | 2012-01-25 | 天津天任车料有限公司 | System and method for treating exhaust gas generated during varnish baking by using water for industrial cycle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071376A (en) * | 2013-01-24 | 2013-05-01 | 江苏新阪神太阳能有限公司 | Waste gas treatment device |
| CN103736351A (en) * | 2014-01-13 | 2014-04-23 | 苏州克利亚环保科技有限公司 | Painting-waste-gas treating device |
| CN105983300A (en) * | 2015-01-31 | 2016-10-05 | 福建省首融环境科技有限公司 | Treatment process for paint exhaust gas |
| CN105233646A (en) * | 2015-11-18 | 2016-01-13 | 温州伟诚环保科技有限公司 | Organic waste gas treatment device |
| CN110270570A (en) * | 2018-03-14 | 2019-09-24 | 上海强精金属制品有限公司 | A kind of spraying waste gas recovery utilizes system |
| CN108325328A (en) * | 2018-04-25 | 2018-07-27 | 济南永新环境科技有限公司 | It is melt into the ultra-clean abatement equipment of fine exhaust gas integration and its application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102872691B (en) | 2014-09-17 |
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