Waste gas treatment device in food packaging bag production

Abstract

The invention discloses a waste gas treatment device in food packaging bag production in the technical field of processing of packaging bags. The waste gas treatment device comprises a spray tower, wherein the interior of the spray tower sequentially comprises a circulating chamber, a spray chamber and an adsorption chamber from bottom to top; the circulating chamber comprises an air inlet and a circulating pool; a plurality of horizontally arranged baffles are arranged in the spray chamber; the plurality of baffles are arranged in the spray chamber in a cross manner, so that a 'Z' waste gas passage is formed in the spray chamber; discharge plates are connected to one ends of the baffles which are not connected with the spray tower; the baffles are connected with nozzles; an activated carbon adsorption layer and an air outlet are arranged in the adsorption chamber; the air outlet is positioned in the center on the top of the adsorption chamber; an exhaust fan is arranged in the air outlet. According to the waste gas treatment device disclosed by the invention, waste gases in the food packaging bag production can be effectively purified, the contact time of the waste gases and spray liquid is increased, and the absorption and purification effect is improved.

Description

technical field [0001] The invention relates to the technical field of packaging bag processing, in particular to a waste gas treatment device in the production of food packaging bags. Background technique [0002] With the rapid growth of the application of plastic food packaging bags and the rapid development of the economy, the production enterprises of flexible packaging bags are also increasing, but at the same time, the impact of various harmful gases on the atmospheric environment is becoming more and more prominent. In the discharge process, it pollutes the environment and consumes energy. [0003] The main raw material for plastic food packaging bags is polyethylene. When high-pressure polyethylene is heated to 150°C, it will decompose acids, esters, unsaturated hydrocarbons, peroxides, formaldehyde, acetaldehyde, CO2 and CO, etc.; its film products should be Pay attention to the toxicity hazards caused by antioxidants, stabilizers and colorants; low-pressure polye...

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Problems solved by technology

[0005] Aiming at the above-mentioned technical problems, the present invention provides a waste gas treatment device in the production of food packaging bags to solve the problem of short contact time between waste gas and circulating liquid in the current spray equipment for treating waste gas

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