Separation of Fine Particles from Gas in Paint-Spraying Booths

Rustem Ya Bikkulov,Andrey V Dmitriev,Vadim E Zinurov,Guzel R Badretdinova,S Bratan,S Roshchupkin

doi:10.1051/matecconf/202134603070

Abstract

Nowadays, at production facilities with paint-spraying booths that use paint and varnish materials to cover the surfaces of product, the problem of gas flow contamination with finely dispersed solid particles of dust and rubbish, which negatively affect the quality of products, is increasingly being raised. In order to minimize the content of solid particles in the gas flow, coarse and fine filters are installed in the paint-spraying booths, which prevent dust particles from entering the surface of products. However, the existing purification devices have a number of disadvantages that affect the efficiency of collecting finely dispersed particles from the gas flow with a size of 0.5-5 microns. The authors of article developed a square separator to increase the efficiency of collecting finely dispersed particles from gas flows in the paint-spraying booths. The installation of proposed separation device in the paint-spraying booths affects not only the quality of collecting solid particles, but also increases the service life of fine and coarse filters In the course of numerical studies, the results of impact of structural and technological parameters, namely, the impact of inlet rate and scale of separation device on the efficiency of collecting solid particles from the gas flow, were obtained.

Highlights

The problem of low efficiency of collecting finely dispersed solid particles in the paintspraying industrial booths is gaining large scale, entailing significant energy and economic costs
As a result of numerical studies of impact of changing in the square separator scale on the efficiency of collecting finely dispersed particles from the gas flow, when an inlet rate is equal to 5 m/s, it is observed that a decrease in the geometric dimensions of device leads to the efficiency increase
The results obtained by numerical study demonstrate that the geometric parameters of structure and the inlet gas rate significantly affect the efficiency of collecting finely dispersed particles from the dusty gas in the paint-spraying booths

Summary

Introduction

The problem of low efficiency of collecting finely dispersed solid particles in the paintspraying industrial booths is gaining large scale, entailing significant energy and economic costs. All paint-spraying booths are fully automated and sealed, as well as equipped with drying devices. They are used for painting, and for drying painted products. Air purification in the paint-spraying booths is carried out in two stages: first, pre-filtration by means of floor filters of coarse purification, - ceiling filters of fine purification. The appearance and durability of products depend on the efficiency of collecting solid particles by filters in the paint-spraying booths. The development of new devices to improve the efficiency of collecting finely dispersed particles in paint-spraying booths is currently an urgent task

Description of developed square separation device

Research results and description of them

Findings

Conclusion