3-Phase Decanter Centrifuge Working Principle

The feed is led into the bowl through a stationary inlet tube and then smoothly accelerated by an inlet rotor. Centrifugal force causes instant sedimentation of these solids on the wall of the bowl. The screw conveyor rotates in the same direction
as the bowl, but at a different speed, and thus transports the
solid phase to the conical end. These solids are then lifted clear of the liquid, and the capillary liquid is then drained centrifugally, before being discharged into the casing through the solids discharge port.
Separation into two liquid phases takes place over the entire
length of the cylindrical part of the bowl, and the clarified
heavy and light liquid phases are discharged from the bowl
by flowing over two sets of level tubes.