A printing workshop air purification device

Abstract

The invention discloses an air purifying device of a printing workshop. The air purifying device comprises a dust collection cover, a fan, a water filtering tower, a photocatalysis device, an activated carbon purifying device and an air exhaust cylinder which are sequentially connected, wherein the dust collection cover is connected with the water filtering tower through the fan and an air intakepipe; an air distribution pipe, an adsorbing and filtering membrane assembly and an air outlet are sequentially arranged in the water filtering tower from bottom to top; the air distribution pipe is connected with the air intake pipe; a water drain pipe, a blowdown pipe and a water supplementing pipe are arranged on the water filtering tower; an air outlet of the water filtering tower is connectedwith the photocatalysis device through a pipeline. The air purifying device of the printing workshop has the advantages that the air in the printing workshop is purified by multiple stages, and the components of the air in the printing workshop are complicated, such as dust and other particulates, and organic VOC (volatile organic compound) gas volatized by ink; by utilizing the multi-stage filtering and purifying device, the purifying effect is good, the equipment maintenance is simple, the cost is low, and the air purifying device is suitable for being popularized and applied.

Description

technical field [0001] The invention belongs to the technical field of printing, and in particular relates to an air purification device in a printing workshop. Background technique [0002] In the production process of the packaging and printing industry, a large amount of waste gas will be discharged. The waste gas is mainly produced in the process of inking, drying and compounding, and the volatilized organic solvent is the main source of waste gas pollution. The components of printing waste gas are complex, including organic gases such as ethanol, ethyl acetate, butyl acetate, propyl acetate, toluene, xylene, etc., which have a strong odor, are flammable and explosive, and the waste gas is harmful to the surrounding environment after being discharged without purification. There will be a lot of dust in the packaging and printing production workshop, and the exhaust gas of the existing packaging and printing workshop is usually discharged directly into the atmosphere, wh...

AI Technical Summary

Problems solved by technology

At the same time, due to the complex composition of VOC and the different characteristics of various pollutants, any single VOC control method is affected by its removal performance, investment and operation costs and scope of application.

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