Treatment system for harmful gases generated in the printing process

Abstract

The invention relates to a treatment system for harmful gases produced in a printing process, which includes an air intake pipe and an exhaust pipe. Tower, combustion chamber; during the printing process, when drying the ink, turn on the external power supply, so that the main fan will suck the exhaust gas generated during the ink drying process into the filter box through the intake pipe, and the exhaust gas will pass through the filter cotton, Then through the activated carbon in the activated carbon adsorption tower, the waste gas will enter the UV photocatalytic treatment equipment, and then enter the spray tower. At this time, the organic waste gas in the waste gas will undergo oxidation reaction with the residual ozone in the water, and finally The exhaust gas will enter the combustion chamber, and after the hydrocarbons in the exhaust gas are oxidized into water and carbon dioxide at a low temperature, the exhaust gas will be discharged to the outdoors through the exhaust pipe. Effect.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a treatment system for harmful gas generated in a printing process. Background technique [0002] Currently, printing ink is in the list of Class 3 carcinogens. Because printing inks and thinners contain a large amount of harmful ingredients, printing inks and thinners will volatilize in large quantities during the printing process, and the volatilized gas will cause great harm to operators and the atmospheric environment, and also cause A large amount of waste of diluent is caused. [0003] The Chinese patent application publication number CN108211576A discloses a printing waste gas treatment device, which includes an air suction device, a filter device and a catalytic combustion device. The air suction device includes an air intake pipe and a fan arranged in the air intake pipe. The shape of the air inlet end is a bell mouth and is located above the printing machi...

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Problems solved by technology

[0004] However, in the above technical solution, some particulate matter, some organic matter and hydrocarbons in the exhaust gas are removed through the filter device and the catalytic combustion device, which reduces the harm of harmful gases to the staff, but the exhaust gas discharged after such treatment may still be harmful to the environment. air pollution

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