Cyclic regeneration process system for governing VOCs exhaust gas

Abstract

The invention relates to the technical field of environmental protection, in particular to a cyclic regeneration process system for governing VOCs exhaust gas. The system is characterized by comprising a desorption pyrolyzing furnace, a chain transmission grate bed, an induced draught system and an adsorbent moving bed. The desorption pyrolyzing furnace comprises a desorption pyrolyzing furnace body and a material supply system. The desorption pyrolyzing furnace body is provided with a flame path and a vertical path, high-temperature glue gas circulates in the flame path, an adsorbent moves tofall off in the vertical path, and the flame path and the vertical path are built adjacently. The material supply system comprises a storage tank and an air injection container. The air injection container introduces tail gas discharged by the flame path into a purging adsorbent, is then mixed with desorbed VOCs exhaust gas and is then conveyed to a pyrolyzing room to be oxidized and pyrolyzed through a grate brick in the bottom of a desorption room. The chain transmission grate bed comprises material legs and a chain transmission grate bed body. A kiln box and a chain transmission grate bedrow are designed on the chain transmission grate bed, an exhaust port is formed in the kiln box, the chain transmission grate bed row comprises a chain wheel, a chain, a grate row and an air distributing plate, and the induced draught system is responsible for introducing and conveying tail gas of an exhaust barrel of the adsorbent moving bed into the air distributing plate of the chain transmission grate bed.

Description

Technical field [0001] The invention relates to the technical field of environmental protection, and in particular to a recycling and regeneration process system for treating VOCs waste gas. Background technique [0002] The gaseous pollutants emitted by industry are the main source of atmospheric environmental pollutants. Among them, volatile organic compounds (VOCs) are gaseous pollutants that have serious effects on the environment, and they are also occupational hazards that affect the health of operators in the workplace. The source of the factors, it is widely derived from paint, coating, coating, lubricants, rubber and other chemical industries. Because of its huge damage to the human body and the natural environment, the country has issued relevant laws and regulations to strictly control its governance and emissions. Organic waste gas treatment technology currently commonly used treatment methods include combustion, chemical oxidation, chemical absorption, adsorption, b...

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Problems solved by technology

[0003] Existing technology-Aiming at the practical problems of large air volume VOCs waste gas treatment, the technical solution of the electrothermal purification filter element is proposed for the enclosure structure, the air inlet surface, and the air outlet surface with one or more layers of porous sieve plates or adsorption beds filled with sieves. However, there is no solution for how to replace the electrothermal purification filter element in normal production after the adsorption of VOCs exhaust gas is saturated; prior art 2 proposes the use of molecular sieve runners and honeycomb activated carbon runners for VOCs exhaust gas adsorption and desorption for the practical problems of VOCs exhaust gas treatment , Concentration, and combustion technical solutions, it is undoubtedly feasible to use a mechanical runner to solve the technical solution of replacing the adsorbent after the VOCs exhaust gas is saturated, but the sealing problem must be solved for moving equipment such as the runner, especially the rotary The problem of VOCs exhaust gas leakage due to seal failure under continuous production conditions during wheel replacement

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