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Device and method for treating automobile maintenance spraying waste gas through activated carbon adsorption and desorption catalytic combustion

A technology of activated carbon adsorption and catalytic combustion, which is applied in combustion methods, chemical instruments and methods, gas treatment, etc., can solve problems such as unsatisfactory treatment effect of the device and inability to meet environmental protection management, etc., to achieve continuous adsorption, improve adsorption efficiency and use. Longevity, the effect of reducing the workload

Pending Publication Date: 2020-11-17
深圳义信环保产业发展有限公司 +1
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing treatment process and equipment have unsatisfactory treatment effects and cannot meet the requirements of environmental protection management, the present invention provides a high-efficiency treatment technology with high treatment efficiency and low operating cost that is suitable for the characteristics of the exhaust gas working conditions in the automobile maintenance industry.

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  • Device and method for treating automobile maintenance spraying waste gas through activated carbon adsorption and desorption catalytic combustion
  • Device and method for treating automobile maintenance spraying waste gas through activated carbon adsorption and desorption catalytic combustion
  • Device and method for treating automobile maintenance spraying waste gas through activated carbon adsorption and desorption catalytic combustion

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Embodiment Construction

[0041] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0042] The invention provides an activated carbon adsorption-desorption catalytic combustion device for treating exhaust gas from automobile maintenance, including a collection and mixing unit 1 , a pretreatment unit 2 , an activated carbon adsorption-desorption unit 3 , a catalytic combustion unit 4 and a control unit 5 .

[0043] The collection and mixing unit 1 communicates with the exhaust system of the paint mixing room, the spray gun cleaning room, the paint spraying room, the leveling room, the drying room and the hazardous waste room respectively through the collecting pipeline. The induced draft fans 11 of each process link are installed in the corresponding collection pipelines. The exhaust gas in the paint mixing room, spray gun cleaning room, spray paint room, leveling room, drying room and hazardous waste room plays an important role in the ind...

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Abstract

The invention relates to the technical field of environmental protection, particularly to a device and a method for treating waste gas containing volatile organic compounds and generated in a sprayingprocess of automobile maintenance industry. The device comprises a collecting and mixing unit, a pretreatment unit, an activated carbon adsorption and desorption unit, a catalytic combustion unit anda control unit, wherein the collecting and mixing unit, the pretreatment unit, the activated carbon adsorption and desorption unit and the catalytic combustion unit are sequentially arranged in a waste gas flowing direction. The method comprises the following steps that waste gas generated in all process links of paint mixing, spraying, leveling, drying and spray gun cleaning in the maintenance process is collected in a dispersed mode, and purification and up-to-standard emission are achieved after paint mist and particulate matter removal, mixing, pretreatment and filtration, activated carbon adsorption and desorption and catalytic combustion reaction are conducted in sequence. The method has high treatment and purification efficiency on low-concentration and large-air-volume spraying waste gas containing volatile organic compounds (VOCs) generated in the production process of the automobile maintenance industry.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a device and method for treating waste gas containing volatile organic compounds (VOCs) generated during the spraying process of the automobile maintenance industry. Background technique [0002] In the automotive maintenance industry, during the process of sheet metal painting maintenance, such as paint mixing, spraying, leveling, baking, and spray gun cleaning, a large amount of spraying exhaust gas containing volatile organic compounds (VOCs) will be generated. The main components of the pollutants in the spraying exhaust gas are Benzene series, alcohol ethers, esters and paint mist, etc. Since the production characteristics of the automobile maintenance industry are intermittent production and unbalanced output, the spraying exhaust gas also shows a large air volume (the rated air volume of a single spray booth is 15000-20000m³ / h), low concentrati...

Claims

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Application Information

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IPC IPC(8): B01D53/04B01D46/00F23G7/07
CPCB01D53/04F23G7/07B01D2258/0258B01D2253/102B01D2257/708B01D46/62
Inventor 吴项林胡远远桓耀辉严明
Owner 深圳义信环保产业发展有限公司
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