A method and device for centralized emission reduction of enamelling machine groups

Abstract

A method for concentrated emission reduction of enamelling machine groups, comprising: a. connecting the secondary catalytic exhaust gas discharge flues (3) of at least two enamelling machines (1) to form a centralized flue (6); b. The centralized flue (6) is connected to the centralized three-time catalytic combustion chamber (7); c. the final waste gas discharged from the concentrated three-time catalytic combustion chamber (7) is introduced into the final waste gas pipeline (10); d. the final waste gas pipeline (10) ) into the final spray chamber (11); the final waste gas enters the final spray chamber (11) from the final waste gas pipeline (10); e. the exhaust gas escapes from the final spray chamber (11). What the present invention escapes finally is clean gas, without peculiar smell. The exhaust gas escape temperature is only 40°C, much lower than the 300°C of the prior art. The atmospheric environment and corporate image around the factory area have been significantly improved.

Description

technical field [0001] The invention relates to a method and equipment for baking and drying enameled wire coated paint film, in particular to a process for reducing exhaust gas after catalytic combustion to the lowest re-emission, and in particular to a method and equipment for centralized treatment of tail gas by multiple enameling machines online. Background technique [0002] At present, the enameled wire industry consumes 150,000 tons of solvents (cresol and xylene) every year, consumes 1.224 billion kWh of energy (equivalent to 495,000 tons of standard coal), and emits 1.53 billion cubic meters of organic waste gas at 300 °C. [0003] The State Council's comprehensive work plan for energy conservation and emission reduction: In 2010, China's energy consumption per 10,000 yuan of GDP will drop from 1.22 tons of standard coal in 2005 to below 1 ton of standard coal, a reduction of about 20%; water consumption per unit of industrial added value will be reduced by 30% %. ...

AI Technical Summary

Problems solved by technology

[0012] The peculiar smell in the exhaust gas is caused by substances smaller than the particles in the exhaust gas. The exhaust gas is discharged after the secondary catalytic combustion of each enamelling machine, and the combustible substances in it are already very low. The academic community believes that it is no longer possible to further eliminate the particles and odors in such exhaust gas through catalytic combustion, and there are no relevant reports at home and abroad.

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