달비계 하부에 설치된 집진 장치의 사용에 따른 페인트 입자비산 저감에 관한 연구

Abstract

Recently, the exterior walls of apartments are being painted using airless paint spray guns rather than paint rollers. However, despite the fact that a large amount of paint mist spreads into the atmosphere during spray painting andseriously affects workers’ health and atmospheric air quality, no research has been conducted on reducing thedispersion of paint particles. In this study, the lower part of a suspended scaffold used for painting the exteriorwalls of apartments was modified to hold a paint particle dispersion reduction device comprising a cyclone separator,high-efficiency particulate air (HEPA) filter, and Sirocco fan. Experiments were conducted to verify the paint particledispersion reduction efficiency of the designed device by operating it when a worker sprayed the paint mist towardthe exterior wall of an apartment building. The experiments were repeated 10 times by measuring the numberconcentration of atmospheric particles in the vicinity of the suspended scaffold using an optical particle counter withor without operating the paint particle dispersion reduction device, and the paint particle dispersion reductionefficiency was determined to be 69% on average. Therefore, the designed device is expected to be extremelyeffective in reducing the dispersion of paint particles generated during painting using airless spray guns.