Automobile 4S store spraying waste gas treatment device and technology thereof

An exhaust gas treatment device and 4S shop technology, applied in the direction of dispersed particle filtration, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of secondary pollution, expensive, complex catalyst preparation, etc., to improve efficiency and promote active substances Effect

Inactive Publication Date: 2017-05-10
杭州科瑞特环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

In this process, the filtering effect of the filter bag is not ideal, and the filter material of the baking room developed in recent years can better solve this problem; the preparation of the catalyst used in the catalytic oxidation method is complicated and expensive; the plasma will produce a relatively high concentration of ozone , when placed at the end, untreated ozone is easily discharged into the atmosphere to cause secondary pollution

Method used

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  • Automobile 4S store spraying waste gas treatment device and technology thereof
  • Automobile 4S store spraying waste gas treatment device and technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In this embodiment, the length of the dry paint mist treatment unit 1 of the spraying waste gas treatment device of the automobile 4S shop is 1000mm, the length of the UV enhanced plasma treatment unit 2 is 1000mm, the length of the adsorption degradation unit 3 is 1000mm, and the length of the return pipe 12 is 2200mm. The total length is 4000mm, the width is 1500mm, and the processing unit height is 2000mm. The dry paint mist treatment unit 1 is equipped with 3 layers of dry paint mist filter materials 5, one layer in the front section is Hengshunda brand glass fiber filter cotton, the filtration accuracy is ≥ 5 μm, and the rear section is a total of two layers of Handu brand glass fiber Filter cotton, the filtration accuracy is ≥1μm. The UV enhanced plasma treatment unit 2 adopts double dielectric barrier discharge as the plasma generation method, and the discharge voltage is 35kV. The size of a single module is 500mm×700mm×1000mm, and there are 20 double dielectric...

Embodiment 2

[0049] In this embodiment, the whole device is exactly the same as in Embodiment 1, and the design air volume is 22000 m 3 / h, the design intake interface size is 2000mm×1500mm, and the design exhaust gas flow rate is 2.03m / s. The difference is that in this embodiment, the return pipe is firmly blocked and there is no return process. The main components of the exhaust gas are xylene, butyl acetate and toluene, and the temperature is normal temperature. The contents of pollutants and ozone before and after waste gas treatment are shown in Table 2.

[0050] Table 2 Concentrations before and after treatment of spray paint exhaust gas under the condition of no reflux

[0051]

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Abstract

The invention discloses an automobile 4S store spraying waste gas treatment device and a technology thereof. The device mainly comprises a dry paint mist processing unit, a UV enhanced plasma processing unit, an adsorption degradation unit and a backflow unit. The spraying waste gas enters the dry paint mist processing unit, a dry paint mist filtering material is used for filtering out paint mist, and the dry paint mist filtering material is regularly replaced and treated in the unified mode; the UV enhanced plasma processing unit comprises a DBD plasma tube and an ultraviolet lamp tube, ultraviolet light plays a role of promoting generation of active substances such as ozone and assisting degradation; the adsorption unit is used for adsorbing the undecomposed organic matters by honeycomb activated carbon, the organic matter continues to react with the active particles under the action of ultraviolet light to generate micromolecule substances and the micromolecule substances are desorbed and discharged; strong oxidizing substances such as ozone are left in the backflow gas, so that the degradation rate of the pollutants can be improved, and the concentration of ozone in the tail gas can be reduced. According to the invention, the problems of low degradation rate of pollutants, secondary pollution, high cost and the like in the prior art are effectively solved.

Description

technical field [0001] The invention belongs to the field of waste gas treatment, and in particular relates to a spraying waste gas treatment device and a process of an automobile 4S shop. Background technique [0002] Automobile spraying is an important process in automobile manufacturing, and a large amount of exhaust gas will be generated during the spraying process. Auto 4S shop is the main place for car maintenance and maintenance. The total amount of sprayed exhaust gas in auto 4S shop is even higher than the total amount of sprayed exhaust gas in automobile manufacturing process. The main components of spraying exhaust gas are paint mist and organic exhaust gas. The main components of organic waste gas are triphenyl, ester, aldehyde, ketone, ether and other compounds. Paint mist and organic waste gas will cause great harm to people's health. [0003] Paint mist has the characteristics of small particles, high viscosity, and easy adhesion to the material surface. Be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/76B01D53/44B01D46/00B01D53/32B01D53/04
Inventor 邵振华田汝斌姜建清
Owner 杭州科瑞特环境技术有限公司
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