Printing VOC waste gas treatment system

Abstract

The invention relates to a printing VOC waste gas treatment system, which comprises a primary purification mechanism used for filtering impuritiesand a photocatalysis mechanism, wherein VOC waste gas sequentially passes through the primary purification mechanism and the photocatalysis mechanism, the photocatalysis mechanism comprises a shell and at least two catalysis assemblies, at least one cylindrical purification cavity is formed in the shell, the catalysis assemblies are arranged in the purification cavity, the primary purification mechanism communicates with the interior of the purification cavity through a pipeline, the catalysis assembly comprises annular catalysis rings, a plurality of ultraviolet lamps arranged on the inner sides of the catalysis rings and a plurality of catalysis blades used for being matched with the ultraviolet lamps to degrade waste gas, the catalysis rings are coaxially and rotationally connected to the cavity wall of the purification cavity, the multiple catalysis blades are arranged around the central axis of the catalysis rings and fixedly connected with each other, the projections of the multiple catalysis blades in the axial direction of the catalysis rings coincide with each other, the shell is provided with a driving assembly used for driving the catalysis rings to rotate, and the rotating directions of any two adjacent catalysis rings are opposite. According to the invention, the catalytic degradation efficiency of the VOC waste gas can be effectively optimized.

Description

technical field [0001] This application relates to the field of waste gas treatment technology, in particular to a printing VOC waste gas treatment system. Background technique [0002] VOC waste gas is the waste gas produced by commanding volatile organic compounds. It is commonly found in the manufacturing process of materials, textiles, printing and other industries. In order to reduce the impact of VOC waste gas on the environment, it is necessary to treat VOC waste gas first in the production and manufacturing process. After being purified to the emission standard, it can be discharged into the atmosphere. However, in the prior art, photocatalytic technology is often used to degrade VOC waste gas. [0003] The Chinese patent with the notification number CN106861389B in the prior art discloses a VOC exhaust gas purification equipment and purification method. A catalytic unit and a plasma purification unit, the photocatalytic unit includes a photocatalytic net coated wi...

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Problems solved by technology

[0004] Regarding the above-mentioned related technologies, the inventor believes that in the process of actual use, because in the process of photocatalysis, the exhaust gas needs to be in contact with the photocatalyst before it can be degraded by photocatalysis. The VOC waste gas is treated through the cooperation of the photocatalytic net and the ultraviolet lamp. The contact between the photocatalytic net and the VOC waste gas is limited, resulting in a relatively low efficiency in the treatment of the VOC waste gas.

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