Coating chamber organic waste gas catalytic combustion treatment system

Abstract

The invention discloses a coating chamber organic waste gas catalytic combustion treatment system, which comprises a dry filter, adsorption desorption boxes, a catalytic combustion device, an adsorption fan, a desorption fan and an air supplement fan, and the number of the adsorption desorption boxes is three. The catalytic combustion device is provided with a preheating chamber, a catalytic bed,a heat exchanger and a first thermocouple, and also includes a PLC control system. The PLC control system includes a PLC controller, a first thermocouple and a first over temperature alarm which are installed in the adsorption desorption box, a second over temperature alarm installed on the catalytic combustion device, and a differential pressure gauge arranged on the dry filter. The coating chamber organic waste gas catalytic combustion treatment system solves the problem that paint spraying exhaust gas is easy to block and the exhaust gas cannot stably reach standards, and the system has high automation and intelligence, the treatment effect on the exhaust gas is good, the purification efficiency is greater than 98%, the noise is lower than 30 dB, meets and exceeds the national emissionstandard; and the coating chamber organic waste gas catalytic combustion treatment system can be used for on-line catalytic combustion treatment of the exhaust gas and can achieve zero emissions of the exhaust gas.

Description

technical field [0001] The invention relates to the technical field of exhaust gas treatment, in particular to an exhaust gas treatment system for a painting room. Background technique [0002] The main components of spray paint exhaust gas are paint spray dust and volatilized benzene, toluene, xylene, etc. Random discharge will have a certain impact on the surrounding environment. Therefore, it needs to be discharged after certain treatment. [0003] The traditional treatment process mainly includes: paint exhaust gas→water spray tower→dry-wet separation→primary effect filter→activated carbon adsorption→discharge. [0004] Due to the viscosity of the paint powder, activated carbon adsorption is used to treat organic waste gas. After the activated carbon is saturated, catalytic combustion is used to desorb it. The exhaust gas discharged from the painting room contains a certain amount of paint mist, which is a viscous substance. Therefore, before the exhaust gas enters the a...

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Problems solved by technology

[0009] Aiming at the problems existing in the prior art, the present invention provides a catalytic combustion treatment system for organic waste gas in the painting room, which solves the problems that the waste gas from spray painting is easy to block and the waste gas cannot meet the standard stably, and the system has a high degree of automation and intelligence, and the waste gas The treatment effect is good, the purification efficiency is >98%, the noise is lower than 30dB, and the emission process of gas and noise meets and exceeds the national emission standard; and it can perform catalytic combustion treatment of exhaust gas online to achieve zero emission of exhaust gas

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