Comprehensive treatment system for decontamination chamber exhaust air

Abstract

The invention provides a comprehensive treatment system for decontamination chamber exhaust air, and relates to the technical field of exhaust gas treatment. The system comprises an air suction pipeline, a reaction tank connected with the air suction pipeline and a filter tank communicated with the reaction tank, the air suction pipeline is connected with a fan, the internal of the reaction tank is divided into an acidic reaction zone, an alkaline reaction zone and a condensation zone, a water mist filter device is arranged between the alkaline reaction zone and the acidic reaction zone, the air suction pipeline is connected from one side of the alkaline reaction zone, airflow in the reaction tank flow flows into the filter tank from one side of the acidic reaction zone, an acid liquid storage tank and an alkali liquid storage tank are arranged at the lateral side of the reaction tank, an alkali liquid communicating tube is connected between the alkali liquid storage tank and the air suction pipeline, an acid liquid communicating tube is connected between the acid liquid storage tank and the acidic reaction zone, and each of the alkali liquid communicating tube and the acid liquidcommunicating tube is provided with a liquid pump. The system has the advantage of stably purifying acidic and alkaline gases.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a comprehensive exhaust air treatment system for a clean room. Background technique [0002] In recent years, the country has paid more and more attention to environmental protection. Some chemical companies and pharmaceutical companies produce a large amount of acidic or alkaline waste gas during the process of operation, and these acidic and alkaline waste gases cause serious pollution to the atmosphere. Existing factories use Generally, the purification and exhaust system can only extract and treat the generated exhaust gas to reduce the pollution in the workshop, but cannot treat and purify it, so its transformation is imminent. [0003] In order to solve the problem of extraction and treatment of acid gas in the factory, the invention with the notification number CN204989855U discloses an acid-base neutralization exhaust system, including a tank body, and an exha...

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Problems solved by technology

[0005] But there is following defect in the prior art scheme among the above-mentioned: because lye is contained in the tank body, the reaction of acid gas and lye is also carried out in the tank body, thereby causes the concentration of lye to constantly reduce along with the carrying out of reaction, and During this process, the flow rate of the lye sprayed by the fog-making nozzle remains unchanged, so when the reaction is carried out for a period of time, the amount of alkaline solute in the same amount of liquid sprayed out by the spray-making nozzle will be significantly reduced, which will cause incomplete reaction phenomenon, which leads to unstable treatment effect of the system on acid gas

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