A multi-stage vocs industrial tail gas treatment system

Abstract

The invention belongs to the field of gas treatment equipment, specifically a multi-stage VOCs industrial tail gas treatment system, including a dust removal chamber, a conveyor belt, a dust washing pool, a washing tank, a connecting pipe and an activated carbon adsorption box, and also includes a dust removal module and a sand filter module , stirring module and washing module, the dust removal module is used for the preliminary treatment of industrial tail gas; the sand filter module is used to separate the solid sand and water in the industrial tail gas; the stirring module is used to wash away the dust in the industrial tail gas; the washing module is used for Wash the industrial tail gas after the dust has been removed, and pass the industrial tail gas into the dust removal chamber through the No. 1 air inlet. After the industrial tail gas is processed by the dust removal module, sand filter module, mixing module and washing module in turn, it reaches the activated carbon through the connecting pipe. In the treatment box, the drying layer inside the connecting pipe absorbs the liquid in the industrial exhaust gas, and the activated carbon in the activated carbon adsorption box reabsorbs the harmful organic substances in the industrial exhaust gas to ensure the cleanliness of the exhaust gas.

Description

technical field [0001] The invention belongs to the field of gas treatment equipment, in particular to a multi-stage VOCs industrial tail gas treatment system. Background technique [0002] VOCs waste gas is a common industrial waste gas in the chemical industry. It has complex components and contains a large amount of organic substances such as hydrocarbons, aldehydes, chlorinated hydrocarbons, etc. Most of the components are carcinogenic pollutants. If they are discharged into the atmosphere without treatment, It will seriously endanger human health and cause great harm to the environment. Therefore, the requirements for VOCs tail gas treatment technology are getting higher and higher, and it is necessary to efficiently complete tail gas treatment in limited equipment. [0003] At present, the VOCs tail gas treatment methods commonly used in industry include: incineration method, plasma purification method, activated carbon adsorption method, and photocatalytic method. Am...

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Problems solved by technology

[0005] In the above-mentioned patent documents, the VOCs tail gas is treated in multiple stages by setting the dust removal box, the washing tank and the activated carbon adsorption box connected in sequence, and the acidic substances in the washing tank are removed to improve the tail gas treatment effect, but this device cannot treat the VOCs in the washing tank. The washing liquid and the solid sand in the tail gas are recycled, which is not conducive to the full utilization of resources

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