Combustible exhaust gas purification treatment system

Abstract

The invention relates to a combustible tail gas purification treatment system. An air supply channel communicates with a workshop, the outlet of the air supply channel is connected with a gas atomizing chamber, an electric control atomizing device is mounted in the gas atomizing chamber, a draught fan is arranged at the connection end of the gas atomizing chamber and the air supply channel, and the tail end of the gas atomizing chamber is connected with a high-temperature combustion chamber; the tail end of the high-temperature combustion chamber is connected with a physical and chemical reaction purification chamber; the tail end of the physical and chemical reaction purification chamber is connected with a tail gas emission device; the tail gas emission device comprises a tail gas delivery port and a tail gas emission port, and the tail gas delivery port is connected with a heat recycling apparatus; and a water cooling filter is arranged in the tail gas emission port, a throttle is arranged at the tail gas emission port, and tail gas passes through the water cooling filter before being introduced to the atmosphere. According to the above technical scheme, the combustible organic volatile tail gas in the workshop can be effectively treated, thereby conforming to the tail gas emission standard. Besides, the system has the advantages of simple structure, separate processing, flexible and convenient field assembly, convenient installation and use, thorough purification, stable operation, low operation cost and the like.

Description

technical field [0001] The invention belongs to the technical field of purification treatment systems, in particular to a combustible tail gas purification treatment system. Background technique [0002] At present, a lot of industrial production, such as printing, automobile, oil and gas, petroleum, chemical industry, pharmaceutical, food processing and many other industries will produce a lot of tail gas and waste gas. Part of the tail and exhaust gas contain low-concentration combustible gases, such as alkanes, toluene, and xylene. However, due to the low concentration, this kind of tail and exhaust gas cannot be burned directly, and it is usually emptied directly, which has brought serious pollution to the environment for a long time. [0003] At present, the main equipment in the purification system for treating industrial flammable and volatile organic pollutants includes adsorption bed and catalytic bed. The catalytic bed is usually made of heat-resistant steel plate...

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Problems solved by technology

However, due to the low concentration, this kind of tail and exhaust gas cannot be directly burned, and it is usually emptied directly, which has brought serious pollution to the environment for a long time

[0003] At present, the main equipment in the purification system for treating industrial flammable and volatile organic pollutants includes adsorption bed and catalytic bed. The catalytic bed is usually made of heat-resistant steel plates or industrial furnace masonry materials. The existing catalytic bed In the structure, the air inlet and air outlet are located at the upper and lower ends of the catalytic bed. Although the existing structure can realize catalytic combustion, there are the following problems: 1. The structure of the catalytic bed furnace itself has a large heat loss, and the efficiency of heat recovery and utilization is low; 2. , The temperature in the catalytic bed furnace body structure is not uniform, the overall temperature is high in the center and low in the edge, which reduces the combustion efficiency of industrial volatile organic pollutants and affects the purification rate of catalytic combustion. 3. The energy saving effect is poor and does not meet the requirements Energy saving and emission reduction requirements, in addition, the desorption gas concentration of the adsorption bed cannot be well controlled during the desorption process, which affects the catalytic combustion efficiency and heat energy utilization rate, and in some paint spraying workshops, industrial volatile organic pollutants are often mixed with paint When the adsorption bed is adsorbed, the paint mist will adhere to the adsorption material in the adsorption bed, causing the adsorption bed to not work normally, reducing the purification efficiency, increasing the purification treatment cost, and affecting normal production.

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