Design and Test Analysis of Dust Removal System in Sandblast Room
Author of the article:ZHANG Jifa;DIAO Yongfa;SHEN Henggen
Author's Workplace：College of Environmental Science and Engineering,Donghua University,Shanghai 201620,China
Key Words：sandblasting room air supply and exhaust circulation zero discharge test
Abstract：
A large amount of dust was produced in the process of sand blasting by the falling sand Department. If it was not handled properly, it would have a great impact on the air quality of the workplace and the physical and mental health of workers, thus becoming the main source of pollution. Taking the transformation of the actual dust removal system as an example, by eliminating the common exhaust chimney, the gas after the dust removal was re-sent to the sandblasting room,forming the air supply and exhaust circulation, and then reaching zero row, and the system was tested on the spot. The results show that the monthly air usage of the modified system is reduced by 60.00% ~95.83%, and the monthly dust emission is 7.01~16.96 kg, reducing by more than 96%. The average dust concentration of PM2.5 at the bottom of the sandblasting room is 77.6 g/m3, lower than the concentration outside the workshop of 80 g/m3, which is in good operation.
