Centrifuge:
1.A shake-out or grind-out machine.
Samples of oil are placed in the machine and whirled at high speed to settle out sediment.
2.
An item of solids-removal equipment that removes fine and ultrafine solids.
It consists of a conical drum that rotates at 2000 to 4000 rpm.
Drilling fluid is fed into one end and the separated solids are moved up the bowl by a rotating scroll to exit at the other end.
Centrifuges generally have limited processing capacity (50 to 250 gpm) but are useful for processing weighted drilling fluids and can remove finer solids than can hydrocyclones or shaker screens.
They can also be used for water clarification or for processing oily cuttings.
