A treatment device for flammable and explosive high-concentration multi-component organic waste gas

Abstract

The invention discloses a treatment device for flammable and explosive high-concentration multi-component organic waste gas. The device comprises a catalytic combustion chamber and an exhaust fan, and is characterized by further comprising a water washing tower, an air replenishing chamber, a PLC system and an air replenishing fan; flammable and explosive organic waste gas after pretreatment enters from the bottom of the water washing tower; diluted mixed gas exhausted by the air replenishing chamber after water washing and air replenishing enters the catalytic combustion chamber; and an outlet of the catalytic combustion chamber is connected with the exhaust fan. Compared with the prior art, the device has the following advantages: the device is excellent in safety and reliability, overcomes the problem of low safety in a traditional VOC treatment technology for treating flammable and explosive high-concentration organic waste gas, breaks through the traditional ideas, uses water washing for dilution, dilutes gas to be treated by an air supply method, and achieves the purpose of safe production; and meanwhile, for reducing the air blowing quantity, the water washing is performed beforehand, so that the concentration of gas soluble in water is reduced, and the subsequent gas treatment quantity in the catalytic combustion chamber is reduced.

Description

technical field [0001] The invention relates to the technical field of organic waste gas treatment, in particular to a treatment device for flammable and explosive high-concentration multi-component organic waste gas. Background technique [0002] Volatile organic compounds, referred to as VOC (Volatile Organic Compounds) for short), are usually used as solvents in industrial production, and are released into the atmosphere after use. At this stage, its widely used fields include petrochemical, printing, artificial leather and electronic components, baking varnish and medicine. The main components of VOC are: hydrocarbons, halogenated hydrocarbons, oxygen hydrocarbons and nitrogen hydrocarbons, which include: benzene series, organic chlorides, Freon series, organic ketones, amines, alcohols, ethers, esters, acids and petroleum hydrocarbon compounds wait. When VOC reaches a certain concentration, it will cause headache, nausea, vomiting, fatigue and other symptoms. In sever...

AI Technical Summary

Problems solved by technology

However, some components in VOC are flammable and explosive gases with many components, and their explosion limit range is very wide.

Aromatic compounds in VOC are generally treated by direct combustion, but for aliphatic compounds, accidents are prone to occur due to their wide explosion limit range

In the actual production process, this kind of flammable and explosive VOC often does not appear in the form of a single component, and the multi-component and high-concentration flammable and explosive organic waste gas is the most difficult to deal with

The traditional direct incineration method and regenerative incineration method both require fuel ignition as a heat source for heating organic waste gas. For flammable and explosive high-concentration multi-component organic waste gas, the risk of treating it with open flames and higher temperatures is too high. , the low-temperature plasma method is also prone to explosion accidents due to sparks generated by high-voltage discharge

The cost of the condensation method is too high and the back-end needs to undergo adsorption treatment, resulting in secondary pollution

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