CN101279193A - Medicinal bath process for treating paint spray booth tail gas and equipment thereof - Google Patents

Medicinal bath process for treating paint spray booth tail gas and equipment thereof Download PDF

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Publication number
CN101279193A
CN101279193A CNA2008100282712A CN200810028271A CN101279193A CN 101279193 A CN101279193 A CN 101279193A CN A2008100282712 A CNA2008100282712 A CN A2008100282712A CN 200810028271 A CN200810028271 A CN 200810028271A CN 101279193 A CN101279193 A CN 101279193A
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China
Prior art keywords
paint
tail gas
spray booth
grease
paint spray
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CNA2008100282712A
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Chinese (zh)
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CN101279193B (en
Inventor
何耀波
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何耀波
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Priority to CN2008100282712A priority Critical patent/CN101279193B/en
Publication of CN101279193A publication Critical patent/CN101279193A/en
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Publication of CN101279193B publication Critical patent/CN101279193B/en

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Abstract

The invention discloses a medicated bath technique for treating tail gas in spray painting booth and a device thereof, which is characterized in that: the technique comprises the following steps: A. medicated-bath treating tail gas: sending the spray-painting tail gas into a medicated bath room and then into a demist device, further into a medicine liquid pool by using a suction fan to cause the spray painting tail gas and the medicament to fully react and the paint molecule to be decomposed into grease; B. medicament circulation treating: sending the medicine liquid obtained from the step A from the medicine liquid pool into a medicated bath water fall through a corrosion protection pump, the medicine liquid driving the grease decomposed from paint molecule to go through a mediated bath pool, entering a grease precipitation pool, distributing the grease after precipitation, counterflowing the medicine liquid into the medicine liquid pool, pumping the medicine liquid again to the medicine absorption tower and the medicated bath water fall for use; C. directly discharging the gas filtered in the medicine absorption tower of the step B into atmosphere from the discharge pipes, which achieves the environment protective standard. The process method and the device of the invention can ensure that the paint is not sticky any more, decompose the paint into grease, effectively neutralize the toxicity of benzopyrene during decomposing, and also has the functions of absorbing phenol and formaldehyde, degrading, decoloring, filtering, odor removing and purifying.

Description

Paint spray booth tail gas dipping treatment process and equipment
Technical field
The present invention relates to the organic exhaust gas processing technology field, more particularly relate to a kind of paint spray booth tail gas treatment process and equipment.
Background technology
At present, it is a relatively engineering of difficulty that organic exhaust gas is handled, particularly paint spray booth tail gas is handled, main cause is that paint can be to the adhesion of object, can make the bonding of ventilating system, to pipe lead, blower fan, filtration object produce bonding, makes fan blade produce harmful effects such as non-equilibrium state, vibration, behaviour be dark, shortens blower fan service life; Produce and adhere to filtering object, influence the normal function of use of filtrate, filtrate is constantly changed and is produced the expense that manually reaches material loss greatly.What at present domestic and international organic waste gas treatment method was commonly used has following four kinds: one is to use direct firing method, its characteristics need be used the fuel cost height, the treatment temperature height, apparatus cost height such as burner, combustion chamber, to handle the paint spray booth gas concentration low, the waste gas that air quantity is big is uneconomical, exists to be easy to generate fire etc. in the combustion process; The 2nd, Production by Catalytic Combustion Process, characteristics are catalyst price height, must carry out pre-treatment, remove dust, coating cloud etc., and catalyst and equipment investment cost height can produce catalyst poisoning in the catalytic process and catalyst life is short; The 3rd, active carbon adsorption, active carbon regeneration is many with the additional useless usefulness of cost that needs, and also will anticipate the thick coating cloud that sprays paint, and anticipate fog moisture, will constantly be changed by active carbon material after the paint adhesion; The 4th, the water-bath absorption process, restricted to coating variety, because of oil paint water is to dissolve, pernicious gas can not be absorbed in the water, so water is to eliminate pernicious gas, paint can adhere to once more to object in advance.Nowadays energy-conserving and environment-protective are top priorities of current people, for this reason, how to develop the New Method for Processing of a kind of not only energy-conservation but also environmental protection, the problem that has become people and inquired into.
Summary of the invention
Purpose of the present invention is exactly that a kind of paint that not only can make that provides for the deficiency that solves prior art can not adhere to again, and paint resolved into fat, in decomposition simultaneously effectively in and the toxicity of BaP, absorb the paint spray booth tail gas dipping treatment process of phenol, formaldehyde, degraded, decolouring, filtration, taste removal, purification.
Another object of the present invention provides a kind of paint that not only can make and can not adhere to again, and paint is resolved into the paint spray booth tail gas dipping treatment facility of fat.
The present invention adopts following technical solution to realize above-mentioned purpose: a kind of paint spray booth tail gas dipping treatment process is characterized in that it comprises following method step:
A, tail gas dipping handle, and the tail gas that will spray paint is sent into Medicated Bathroom, enters demister again, and through air-introduced machine gas are sent into medical solution pool, and spray paint tail gas and medicament are fully reacted, and will paint molecular breakdown and become fat;
B, medicament circular treatment, soup in a process is entered the liquid for medicinal bath Lian by corrosion protection pump by medical solution pool, soup drives the paint that has resolved into fat, pass through medicated bath pools, enter the precipitation of grease pond again, post precipitation is shunted grease, and soup is back to the medicine liquid pool, and use medicine absorption tower and soup water Lian on the pump once more;
C, the gas after will filtering through b process drug absorption tower are from the blast pipe qualified discharge.
As further specifying of such scheme, in above-mentioned processing step a process, also need Medicated Bathroom, medical solution pool regularly, are quantitatively added medicament, the medicament adding method adopts the electrical autocontrol method.
The medicament that uses in described Medicated Bathroom, medical solution pool and the liquid for medicinal bath Lian adopts microemulsion technology, stop the adhesion once more of paint, make paint resolve into hydroaropic substance, adopt flocculating agent, macromolecule coagent, dispersant, nertralizer, absorption cleaning agent, grease absorption degraded is sterilized.
The method that paint is resolved into fat has two kinds in addition to the above methods, and a kind of is to fall to subsurface layer after grease is decomposed, and another kind is to float on the water surface on resolving into behind the fat to paint.
A kind of paint spray booth tail gas dipping treatment facility, the workbench that sprays paint that comprises paint spray booth and interior setting thereof, paint spray booth is provided with outdoor air inlet and coating cloud gas suction inlet, the spray paint below of workbench is provided with the pond, it is characterized in that, described coating cloud gas suction inlet is circumscribed with Medicated Bathroom, the top of this Medicated Bathroom disposes anti-smog device, the output of anti-smog device is connected with air-introduced machine, the air outlet place of air-introduced machine is provided with medical solution pool and goes up the drug absorption tower that is provided with, the drug absorption tower is provided with exhaust port, and the periphery of medical solution pool is equipped with the soup EGR, and this device is connected with paint spray booth and absorption tower respectively by pipeline.
Described soup EGR comprises circulating pump, automatic part flow arrangement and switch valve, and the junction of circulating pump and paint spray booth is provided with water Lian curtain wall, and part flow arrangement is provided with two delivery outlets automatically, links to each other with grease gatherer and medical solution pool respectively.The grease gatherer is provided with automatic collection function, can be set with planned, the automatic collection work of intersexuality sometimes, is provided with grease reserves depth gauge rule simultaneously.
The pond that the described workbench below of spraying paint is provided with is provided with on the ground, is made of several grids.
Described Medicated Bathroom and medical solution pool are respectively equipped with feeding opening, the feeding opening place is connected with the automatically feeding medicament device, but this device comprises conveying device, sensor, electric-controlled switch valve setting-up time work time switch etc., adds medicament according to the work deal, and medical solution pool has automatic water-replenishing device.
The beneficial effect that the present invention adopts above-mentioned technical solution to reach is:
1, the present invention adopts dipping technology flow process to make paint molecule and STRUCTURE DECOMPOSITION, can not adhere to once more, and drive the paint resolved into fat by the medicament cyclic processing device, by medicated bath pools, enter the precipitation of grease pond again, post precipitation is shunted grease, soup is back to the medicine liquid pool, the recyclable utilization of the grease that distributes reduces a large amount of cleaning works, both energy-conservation also environmental protection; Compared with prior art, can avoid paint to gather at air-line system etc., the time is long can to increase resistance, hinder outer throughput, avoid spheroid or filtrate in the treatment system to produce bonding, gas can not often will be changed material production writing material and labour cost by forming very big resistance.
2, the medicament adding method adopts the electrical autocontrol method, as long as start this paint spray booth tail gas dipping treatment system, native system in a planned way replenishes medicament automatically, and is easy to use.
Description of drawings
Fig. 1 is a process flow diagram of the present invention;
Fig. 2 is a structural representation of the present invention.
Description of reference numerals: 1, paint spray booth 1-1, outdoor air inlet 1-2, coating cloud gas suction inlet 2, the workbench 3 that sprays paint, pond 4, Medicated Bathroom 5, demister 6, air-introduced machine 7, medical solution pool 8, drug absorption tower 9, exhaust port 10, soup EGR 11, water Lian curtain wall 12, precipitation of grease pond 13, water and oil separator
The specific embodiment
As shown in Figure 1, paint spray booth tail gas dipping treatment process of the present invention, it comprises following method step:
A, the tail gas dipping is handled, at first thick coating cloud is adhered to through medicine water Lian, the tail gas that will spray paint is sent into Medicated Bathroom, enter demister again, and the process air-introduced machine is sent gas into medical solution pool, spray paint tail gas and medicament are fully reacted, and will paint molecular breakdown and become fat, Medicated Bathroom, the medicament that uses in medical solution pool and the liquid for medicinal bath Lian adopts microemulsion technology, stop the adhesion once more of paint, make paint resolve into hydrophily, adopt flocculating agent, the macromolecule coagent, dispersant, nertralizer, the absorption cleaning agent, grease absorption degraded sterilization, can use the polymeric material through acid reaction or chlorine reaction gained of one or more iron or aluminium in the middle of the flocculating agent of described employing.On May 4th, 2008, efficient by green product authentication checks center, south China, Guangdong Province test agents, its examining report 080047 numbering shows, eliminate the clearance 94.5% of pernicious gas benzene, remove efficient 97.16% of toluene, remove the efficient 97% of dimethylbenzene, remove efficient 100% of butanone.
The method that paint is resolved into fat has two kinds in addition to the above methods, and a kind of is to fall to subsurface layer after grease is decomposed, and another kind is to float on the water surface on resolving into behind the fat to paint.
B, medicament circular treatment, soup in a process is entered the liquid for medicinal bath Lian by corrosion protection pump by medical solution pool, soup drives the paint that has resolved into fat, pass through medicated bath pools, enter the precipitation of grease pond again, post precipitation is shunted grease, and soup is back to the medicine liquid pool, and use medicine absorption tower and soup water Lian on the pump once more;
C, the gas after will filtering through b process drug absorption tower are from the blast pipe qualified discharge.
In above-mentioned processing step a process, also need to Medicated Bathroom, medical solution pool regularly, quantitative interpolation medicament, medicament adding technology flow process generally adopts the electrical autocontrol method, as long as start this paint spray booth tail gas dipping treatment system, native system in a planned way replenishes medicament automatically.
Shown in Figure 2, the equipment that is complementary with above-mentioned paint spray booth tail gas dipping treatment process, the workbench 2 that sprays paint that comprises paint spray booth 1 and interior setting thereof, paint spray booth 1 is provided with outdoor air inlet 1-1 and coating cloud gas suction inlet 1-2, the spray paint below of workbench 2 is provided with pond 3, this pond 3 is provided with on the ground, constitute by several grids, coating cloud gas is contact medicine water Lian earlier, Medicated Bathroom 4 is gone in inspiration again through entering the mouth, the bottom of Medicated Bathroom 4 is connected with precipitation of grease pond 12, the top of Medicated Bathroom 4 disposes demister 5, and again through air-introduced machine 6, the air outlet place of air-introduced machine 6 is provided with medical solution pool 7 and goes up the drug absorption tower 8 that is provided with after demister 5 is vent gas treatment, drug absorption tower 8 is provided with exhaust port 9, Medicated Bathroom 4 is provided with feeding opening, and the feeding opening place is connected with the automatically feeding medicament device, and this device comprises conveying device, sensor, the electric-controlled switch valve, but setting-up time timework switch etc., add medicament according to the work deal, medical solution pool 7 has automatic water-replenishing device.The periphery of medical solution pool 7 is equipped with soup EGR 10, this device 10 is connected with paint spray booth medicine water Lian and absorption tower 8 respectively by pipeline, in the present embodiment, soup EGR 10 comprises circulating pump, automatic part flow arrangement and switch valve, the junction of circulating pump and paint spray booth is provided with water Lian curtain wall 11, automatically part flow arrangement is provided with two delivery outlets, links to each other with grease gatherer and medical solution pool respectively.The grease gatherer is provided with automatic collection function, and water and oil separator 13 is housed on it, can be set with planned, the automatic collection work of intersexuality sometimes, is provided with grease reserves depth gauge rule simultaneously.
The present invention is not limited to the foregoing description; the mode of described interpolation medicament is except adopting auto-control mode; can also be by artificial allotment or alternate manner; those skilled in the art can do numerous modifications and variations; under the spirit that does not break away from patent of invention, all in the claimed scope of patent of the present invention.

Claims (7)

1, a kind of paint spray booth tail gas dipping treatment process is characterized in that it comprises following method step:
A, tail gas dipping handle, and the tail gas that will spray paint is sent into Medicated Bathroom, enters demister again, and through air-introduced machine gas are sent into medical solution pool, and spray paint tail gas and medicament are fully reacted, and will paint molecular breakdown and become fat;
B, medicament circular treatment, soup in a process is entered the liquid for medicinal bath Lian by corrosion protection pump by medical solution pool, soup drives the paint that has resolved into fat, pass through medicated bath pools, enter the precipitation of grease pond again, post precipitation is shunted grease, and soup is back to the medicine liquid pool, and use medicine absorption tower and soup water Lian on the pump once more;
C, the gas after will filtering through b process drug absorption tower are from emission by exhaust pipe.
2, paint spray booth tail gas dipping treatment process according to claim 1 is characterized in that, in above-mentioned processing step a process, also needs Medicated Bathroom, medical solution pool regularly, are quantitatively added medicament, and the medicament adding method adopts the electrical autocontrol method.
3, paint spray booth tail gas dipping treatment process according to claim 1, it is characterized in that, the medicament that uses in described Medicated Bathroom, medical solution pool and the liquid for medicinal bath Lian adopts microemulsion technology, paint is resolved into hydroaropic substance, adopt flocculating agent, macromolecule coagent, dispersant, nertralizer, absorption cleaning agent grease absorption degraded sterilization.
4, the any equipment that described paint spray booth tail gas dipping treatment process matches of a kind of claim 1~3, the workbench that sprays paint that comprises paint spray booth and interior setting thereof, paint spray booth is provided with outdoor air inlet and coating cloud gas suction inlet, the spray paint below of workbench is provided with the pond, it is characterized in that, described coating cloud gas is contact medicine water Lian earlier, Medicated Bathroom is gone in inspiration again through entering the mouth, the top of this Medicated Bathroom disposes demister, the output of demister is connected with air-introduced machine, the air outlet place of air-introduced machine is provided with medical solution pool and goes up the drug absorption tower that is provided with, the drug absorption tower is provided with exhaust port, the periphery of medical solution pool is equipped with the soup EGR, and this device is connected with paint spray booth and absorption tower respectively by pipeline.
5, paint spray booth tail gas dipping treatment process according to claim 4, it is characterized in that, described soup EGR comprises circulating pump, automatic part flow arrangement and switch valve, the junction of circulating pump and paint spray booth is provided with water Lian curtain wall, automatically part flow arrangement is provided with two delivery outlets, links to each other with grease gatherer and medical solution pool respectively.
6, paint spray booth tail gas dipping treatment process according to claim 4 is characterized in that, the pond that the described workbench below of spraying paint is provided with is provided with on the ground, is made of several grids.
7, paint spray booth tail gas dipping treatment process according to claim 4, it is characterized in that, described Medicated Bathroom and medical solution pool are respectively equipped with feeding opening, the feeding opening place is connected with the automatically feeding medicament device, but this device comprises the work time switch of conveying device, sensor, electric-controlled switch valve setting-up time, and medical solution pool has automatic water-replenishing device.
CN2008100282712A 2008-05-26 2008-05-26 Medicinal bath process for treating paint spray booth tail gas and equipment thereof CN101279193B (en)

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Application Number Priority Date Filing Date Title
CN2008100282712A CN101279193B (en) 2008-05-26 2008-05-26 Medicinal bath process for treating paint spray booth tail gas and equipment thereof

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CN101279193B CN101279193B (en) 2011-06-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102580451A (en) * 2011-12-24 2012-07-18 浙江环泰环保设备有限公司 Treatment method for paint spraying waste gas
CN111687719A (en) * 2020-06-22 2020-09-22 蔡乐意 Fine arts palette processing equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1846837A (en) * 2005-04-13 2006-10-18 刘贵明 Treating method of lacquer spraying waste gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102580451A (en) * 2011-12-24 2012-07-18 浙江环泰环保设备有限公司 Treatment method for paint spraying waste gas
CN102580451B (en) * 2011-12-24 2014-08-20 浙江环泰环保设备有限公司 Treatment method for paint spraying waste gas
CN111687719A (en) * 2020-06-22 2020-09-22 蔡乐意 Fine arts palette processing equipment

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