Patent ID: 6187080
Filing Date: 2001-02-13
Classification: B01D,B08B,C23C,Y02C

Abstract:
An exhaust gas treatment apparatus including a water vortex means and a discharge pipe for treating exhaust gas generated in diffusion and deposition steps in wafer production processes, comprising:a main pipe including an inlet for receiving the exhaust gases, a scraper located on the inside wall of the main pipe, a transmission located at a lower portion of the main pipe and an outlet;wherein exhaust gas forms waste powder which is discharged out through the outlet, the waste powder forming lump type waste power on the inside wall of the main pipe and being removed from the inside wall by the turning scraper;a gas vortex means located below the transmission for generating an annular downward gas flow;a water vortex means located below the gas vortex means for generating an annular downward water flow;a U-pipe having a first connector connecting with the outlet and a second connector which has a drain located thereunder, the first and the second connector having respectively upward openings; anda discharge pipe connecting at one end thereof with the second connector.