CN203635019U - Spray paint waste gas treatment device - Google Patents

Spray paint waste gas treatment device Download PDF

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Publication number
CN203635019U
CN203635019U CN201420016413.4U CN201420016413U CN203635019U CN 203635019 U CN203635019 U CN 203635019U CN 201420016413 U CN201420016413 U CN 201420016413U CN 203635019 U CN203635019 U CN 203635019U
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CN
China
Prior art keywords
waste gas
demister
corona discharge
plasma
low temp
Prior art date
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.)
Expired - Fee Related
Application number
CN201420016413.4U
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Chinese (zh)
Inventor
蒋建平
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CLEAR ENVIRONMENT TECHNOLOGY SUZHOU Co Ltd
Original Assignee
CLEAR ENVIRONMENT TECHNOLOGY SUZHOU Co Ltd
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Priority to CN201420016413.4U priority Critical patent/CN203635019U/en
Application granted granted Critical
Publication of CN203635019U publication Critical patent/CN203635019U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a spray paint waste gas treatment device which is used for treating waste gas discharged from a spray paint waste gas discharging port. The spray paint waste gas treatment device comprises a wet-type cyclone separator, a corona discharging low-temperature plasma waste gas purifying device and a spraying washing tower, which are sequentially connected with the spray paint waste gas discharging port, wherein a gas outlet of the wet-type cyclone separator is connected with a gas inlet of the corona discharging low-temperature plasma waste gas purifying device, a gas outlet of the corona discharging low-temperature plasma waste gas purifying device is connected with a gas inlet of the spraying washing tower, and the spraying washing tower is provided with an exhaust port which is communicated with the atmosphere. The spray paint waste gas treatment device is designed for purifying the spray paint waste gas, the air pollution caused by the volatilization of organic pollutants such as methylbenzene and dimethylbenzene in the paint spraying and drying process can be reduced at relatively low cost, and a purpose of clean emission can be realized.

Description

A kind of lacquer spraying waste gas treating apparatus
Technical field
The utility model relates to waste gas purification processing technology field, relates in particular to a kind of lacquer spraying waste gas treating apparatus.
Background technology
Spraying paint is a kind of very common process of surface treatment, and in now widely used paint, the organic solvents such as benzene,toluene,xylene, NMHC occupy very large ratio.Spray paint and dry process in, these organic solvents can evaporate in air, form the pollution to air.Existing paint-spraying production line is all provided with air exhausting device at paint spray booth and baking room, and the organic matter volatilizing in paint is discharged.The emission-control equipment that at present only had a small amount of paint-spraying production line design and installation, in these emission-control equipments, majority is to adopt sorbing material to process organic pollution.The sorbing materials such as active carbon are to utilize the micro-pore of material surface that the molecule particle of pollutant is fixed, and in lacquer spraying waste gas, contain the dry coating cloud of significant proportion, these coating clouds are attached to sorbing material surface, after dry, the micropore of sorbing material can be blocked, stop sorbing material further to adsorb, because paint is dry rear firmly abnormal, sorbing material cannot be regenerated simultaneously, must change.Therefore adopt absorption method to process lacquer spraying waste gas and there is very large difficulty.Because the tolerance of lacquer spraying waste gas is huge, some efficient processing methods are as combustion method needs a large amount of heat energy, are that the producer of spraying paint often cannot bear.
Chinese patent (N202654901U) discloses a kind of absorbent charcoal adsorber of paint spray booth, adsorbs with two-layer active carbon, and this mode gas does not pass through pre-filtering, and the utilization rate of active carbon is reduced, and replacement frequency increases, and cost is huge.Therefore need to develop the treating apparatus of a kind of anti-pollution, low operating cost.
Utility model content
The technical problems to be solved in the utility model is: overcome the expensive technical problem of lacquer spraying waste gas treating apparatus in prior art, a kind of lacquer spraying waste gas treating apparatus is provided, under lower cost, reduce spray paint and dry process in the pollution that causes in evaporateing into air of the organic pollution such as toluene, dimethylbenzene.
The utility model solves the technical scheme that its technical problem adopts: a kind of lacquer spraying waste gas treating apparatus, the waste gas of discharging for the treatment of lacquer spraying waste gas floss hole, described lacquer spraying waste gas treating apparatus comprises the wet cyclone being connected successively with lacquer spraying waste gas floss hole, corona discharge low temp cleaning plant for waste gas of plasma and spray washing tower, described wet cyclone gas outlet connects the air inlet of corona discharge low temp cleaning plant for waste gas of plasma, the gas outlet of described corona discharge low temp cleaning plant for waste gas of plasma connects the air inlet of described spray washing tower, described spray washing tower is provided with the exhaust outlet communicating with atmosphere.
Further, described Waste gas outlet is communicated with the air inlet of the bottom that is positioned at described wet cyclone by pipeline, and the bottom of wet cyclone has liquid and/or solid-state coating cloud is concentrated outlet.
Further, described lacquer spraying waste gas treating apparatus also comprises demister, described demister is located between wet cyclone and corona discharge low temp cleaning plant for waste gas of plasma, the gas outlet of described wet cyclone is connected with the air inlet of described demister, and the gas outlet of described demister is connected with the air inlet of corona discharge low temp cleaning plant for waste gas of plasma.
Further, described demister is baffle plate type demister, the air foam separator that described baffle plate type demister is made up of several deflection plates, and described baffle plate type demister is two groups.
Further, described baffle plate type demister is made up of stainless steel.
Further, described corona discharge low temp cleaning plant for waste gas of plasma comprises housing and is located at the corona discharge low temp plasma electrode in housing.
Further, in described housing, be provided with the cleaning device that can clean described corona discharge low temp plasma electrode.
Further, described spray washing tower has two groups of spray heads.
The beneficial effects of the utility model are, lacquer spraying waste gas treating apparatus of the present utility model is removed the liquid and/or solid-state coating cloud that has a strong impact on described lacquer spraying waste gas treating apparatus operation in waste gas by wet cyclone, can further remove mist by flowing board-like demister, then remove the organic pollution in waste gas by corona discharge low temp cleaning plant for waste gas of plasma, remove by spray washing tower the acidic oxide forming after organic pollution oxidation again, emit by exhaust outlet through the waste gas of processing.The utility model under lower cost, reduce spray paint and dry process in the pollution that causes in evaporateing into air of the organic pollution such as toluene, dimethylbenzene, reached the object of clean emission.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
In figure: 1, Waste gas outlet; 2, wet cyclone; 3, demister; 4, corona discharge low temp plasma electrode; 5, cleaning device; 6, discharge low-temperature cleaning plant for waste gas of plasma; 7, outlet; 8, spray washing tower; 9, spray head; 10, exhaust outlet.
The specific embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, described lacquer spraying waste gas treating apparatus of the present utility model comprises the wet cyclone 2, corona discharge low temp cleaning plant for waste gas of plasma 6 and the spray washing tower 8 that are connected successively with lacquer spraying waste gas floss hole 1, described wet cyclone 2 gas outlets connect the air inlet of corona discharge low temp cleaning plant for waste gas of plasma 6, the gas outlet of described corona discharge low temp cleaning plant for waste gas of plasma 6 connects the air inlet of described spray washing tower 8, and described spray washing tower 8 is provided with the exhaust outlet 10 communicating with atmosphere.
The waste gas that enters described wet cyclone 2 through floss hole 1 is subject to revolving wind action and produces strong rotation, liquid and solid-state coating cloud is thrown toward the wall of wet cyclone 2 under the action of the centrifugal, under Action of Gravity Field, liquid and solid-state coating cloud falls through concentrating outlet 7 to discharge along wall.Gas after separation enters corona discharge low temp cleaning plant for waste gas of plasma 6 from the gas outlet of wet cyclone 2.
For the liquid state to larger in waste gas and solid-state coating cloud carry out pre-separation, to alleviate the load of wet cyclone 2, preferably, described Waste gas outlet 1 is communicated with the air inlet of the bottom that is positioned at described wet cyclone 2 by pipeline, and the bottom of wet cyclone 2 has liquid and/or solid-state coating cloud is concentrated outlet 7.Because from bottom air inlet, can make full use of the lower space of wet cyclone 2.
Entrainment in the gas of processing through wet cyclone 2, and these mist diameters are very little, described mist need to be removed, therefore, described lacquer spraying waste gas treating apparatus also comprises demister 3, described demister 3 is located between wet cyclone 2 and corona discharge low temp cleaning plant for waste gas of plasma 6, the gas outlet of described wet cyclone 2 is connected with the air inlet of described demister 3, and the gas outlet of described demister 3 is connected with the air inlet of corona discharge low temp cleaning plant for waste gas of plasma 6.
In order further to improve the efficiency of demist, described demister 3 is baffle plate type demister, the air foam separator that described baffle plate type demister is made up of several deflection plates, and described baffle plate type demister is two groups.When the waste gas that contains mist is flowed through baffle plate type demister with certain speed, in baffle plate type demister, the bend of V-type deflection plate composition causes the sharply variation of fluid flow direction, make to have compared with the mist of large inertia and deflection plate and collide and be attached on deflection plate surface, mist is separated from mobile gas.And gas is unimpeded due to the runner spaciousness forming between deflection plate, thereby can smooth and easy passing through.Two groups of baffle plate type demisters have increased the chance that mist is captured, and the mist not being removed is captured through identical effect at next group baffle plate type demister, thereby has greatly improved demist efficiency.Gas, by after baffle plate type demister, does not basically contain mist.
In order to strengthen the corrosion resistance of described baffle plate type demister, preferentially, described baffle plate type demister is made up of stainless steel.
Described corona discharge low temp cleaning plant for waste gas of plasma 6 comprises housing and is located at the corona discharge low temp plasma electrode 4 in housing.
Contaminated and cannot process waste gas due to corona discharge low temp plasma electrode 4 for fear of emission-control equipment, preferably, in described housing, be provided with the cleaning device 5 that can clean described corona discharge low temp plasma electrode 4.
In order to remove the acidic oxide forming after oxidation operation, preferably, described spray washing tower 8 comprises two groups of spray heads 9, and described spray head 9 sprays alkaline water, the waste gas of processing is washed, and after the acidic oxide forming after removal oxidation operation, gas is discharged from exhaust outlet 10.
The operation principle of lacquer spraying waste gas treating apparatus of the present utility model is as follows: first by wet cyclone 2, the liquid state and the solid-state coating cloud that in waste gas, have a strong impact on treating apparatus operation are removed, liquid and solid-state coating cloud is through concentrating outlet 7 to discharge; Gas is further removed mist by the board-like demister 3 of stream again; Then utilize resistant to pollution corona discharge low temp plasma electrode 4 in discharge low-temperature cleaning plant for waste gas of plasma 6 that the organic pollution being dissolved in gas is decomposed to removal; Finally utilize the spray head 9 in spray washing tower 8 to spray alkaline water, the gas of processing is washed, after the acidic oxide forming after removal oxidation operation, gas is discharged through exhaust outlet 10, reaches the object of clean emission.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on description, must determine its technical scope according to claim scope.

Claims (8)

1. a lacquer spraying waste gas treating apparatus, the waste gas of discharging for the treatment of lacquer spraying waste gas floss hole (1), it is characterized in that, comprise the wet cyclone (2) connecting successively, corona discharge low temp cleaning plant for waste gas of plasma (6) and spray washing tower (8), described wet cyclone (2) gas outlet connects the air inlet of corona discharge low temp cleaning plant for waste gas of plasma (6), the gas outlet of described corona discharge low temp cleaning plant for waste gas of plasma (6) connects the air inlet of described spray washing tower (8), described spray washing tower (8) is provided with the exhaust outlet (10) communicating with atmosphere.
2. lacquer spraying waste gas treating apparatus as claimed in claim 1, it is characterized in that, described Waste gas outlet (1) is communicated with the air inlet of the bottom that is positioned at described wet cyclone (2) by pipeline, and the bottom of wet cyclone (2) has liquid and/or solid-state coating cloud is concentrated outlet (7).
3. lacquer spraying waste gas treating apparatus as claimed in claim 1, it is characterized in that, also comprise demister (3), described demister is located between wet cyclone (2) and corona discharge low temp cleaning plant for waste gas of plasma (6), the gas outlet of described wet cyclone (2) is connected with the air inlet of described demister (3), and the gas outlet of described demister (3) is connected with the air inlet of corona discharge low temp cleaning plant for waste gas of plasma (6).
4. lacquer spraying waste gas treating apparatus as claimed in claim 3, it is characterized in that, described demister (3) is baffle plate type demister, the air foam separator that described baffle plate type demister is made up of several V-type deflection plates, and described baffle plate type demister is two groups.
5. lacquer spraying waste gas treating apparatus as claimed in claim 4, is characterized in that, described baffle plate type demister is made up of stainless steel.
6. lacquer spraying waste gas treating apparatus as claimed in claim 1, is characterized in that, described corona discharge low temp cleaning plant for waste gas of plasma (6) comprises housing and is located at the corona discharge low temp plasma electrode (4) in housing.
7. lacquer spraying waste gas treating apparatus as claimed in claim 6, is characterized in that, is provided with the cleaning device (5) that can clean described corona discharge low temp plasma electrode (4) in described housing.
8. lacquer spraying waste gas treating apparatus as claimed in claim 1, is characterized in that, has two groups of spray heads (9) in described spray washing tower (8).
CN201420016413.4U 2014-01-13 2014-01-13 Spray paint waste gas treatment device Expired - Fee Related CN203635019U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420016413.4U CN203635019U (en) 2014-01-13 2014-01-13 Spray paint waste gas treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420016413.4U CN203635019U (en) 2014-01-13 2014-01-13 Spray paint waste gas treatment device

Publications (1)

Publication Number Publication Date
CN203635019U true CN203635019U (en) 2014-06-11

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104083978A (en) * 2014-07-07 2014-10-08 中国轻工业武汉设计工程有限责任公司 Exhausting-recycling device of green liquid dissolving tank
CN104906910A (en) * 2015-06-24 2015-09-16 上海大众汽车有限公司 Paint mist purifying device
CN109876649A (en) * 2017-12-06 2019-06-14 天长市金陵电子有限责任公司 A kind of painting workshop emission-control equipment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104083978A (en) * 2014-07-07 2014-10-08 中国轻工业武汉设计工程有限责任公司 Exhausting-recycling device of green liquid dissolving tank
CN104083978B (en) * 2014-07-07 2015-11-18 中国轻工业武汉设计工程有限责任公司 A kind of green liquor dissolving tank exhaust recovery device
CN104906910A (en) * 2015-06-24 2015-09-16 上海大众汽车有限公司 Paint mist purifying device
CN104906910B (en) * 2015-06-24 2016-08-31 上汽大众汽车有限公司 Paint mist purification treatment device
CN109876649A (en) * 2017-12-06 2019-06-14 天长市金陵电子有限责任公司 A kind of painting workshop emission-control equipment

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140611

Termination date: 20180113