Biotrickling filter of coating production line waste gas

Abstract

The invention discloses a biotrickling filter of a coating production line waste gas. The biotrickling filter comprises a biotrickling filter body, wherein a gas inlet tube is connected with one sideof the lower part of the biotrickling filter body in a communicating manner; a gas outlet tube is connected with one side of the upper part of the biotrickling filter body in a communicating manner; atricking filler chamber comprises an upper uniform distribution plate, a lower holding plate, a middle partition plate and a filler layer; the middle partition plate is arranged in the center betweenthe upper uniform distribution plate and the lower holding plate; the filler layer comprises an upper filler plate, a lower filler plate, a middle filler and a microorganism filtering plate; the partbetween the upper filler plate and the lower filler plate is filled with a filler layer; the microorganism filtering plate is arranged between the upper filler plate and the lower filler plate; the microorganism filtering plate comprises a connecting rod and a filtering plate; both ends of t he connecting rod are respectively fixedly connected with the upper filler plate and the lower filler plate; the filtering plate is arranged on the connecting rod; and a spraying tube is arranged on the inner side of the top of the biotrickling filter. The combined biotrickling filter system disclosed bythe invention has the advantages of being high in deodorization efficiency, low in operation cost, high in security, and the like, and is particularly applicable to waste gases with paint on a coatingproduction line.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a biological trickling filter for waste gas in a coating production line. Background technique [0002] The existing spraying line includes: automatic assembly line (conveyor system), fixed automatic spraying room (spraying system), oven-type drying room (drying system), UV curing room (curing system), and dust removal system. The workpiece to be sprayed enters the spraying system through the automatic assembly line. After being sprayed by the fixed automatic spray gun, it enters the drying system for drying, and then enters the UV curing room for curing, and the spraying is completed. In the whole production line, the spraying room, curing room, and drying room all need to be connected to the dust removal system for effective dust removal. [0003] The paint during the spraying process contains sulfides, nitrides, oxygen organics, and hydrocarbons. These gases are i...

AI Technical Summary

Problems solved by technology

[0005] The main problem of the biological trickling filter in the prior art is: the growth of microorganisms will naturally fall off, and the packing will be blocked after falling off, and a spray water system is required to spray and wash the blocked and fallen microorganisms in the packing, and the cleaning is time-consuming and laborious. It will affect the effect and speed of filtering and treating exhaust gas

On the other hand, the effect of biological treatment is slow

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