Patent ID: 6306020
Filing Date: 2001-10-23
Classification: B01F,B24B

Abstract:
A multistage recirculating slurry system for providing different sized grit to a polisher, comprising:a tank for holding a slurry of said different sized grit;an adjustable intake pipe for extracting slurry from said tank, said adjustable intake pipe having at least two positions that are at different depths in said tank;an intake valve coupled to said adjustable intake pipe for controlling a flow of slurry through said adjustable intake pipe;a bypass pipe coupled to said adjustable intake pipe for returning slurry to said tank;a bypass valve coupled to said bypass pipe for controlling a flow of slurry in said bypass pipe;a delivery pipe coupled to said adjustable intake pipe for supplying slurry to said polisher;a delivery valve coupled to said delivery pipe for controlling a flow of slurry in said delivery pipe;a return pipe coupled to said polisher for returning said slurry from said polisher to said tank;a pump coupled to said adjustable intake pipe for pumping the slurry in said bypass pipe and said delivery pipe.