Disc Centrifuge Working Principle

April 7, 2021 Disc Centrifuge

Disc centrifuge is a mechanical filter based on the principle of centrifugal sedimentation. It is widely used for the continuous separation of liquids with density difference and solid-liquid mixture.

When the raw liquid was fed into the high-speed rotating drum, it enters the disc stack along the channel. With the effect of strong centrifugal force, raw liquid with different densities forms 3D concentric rings. Small amounts of solid particles with most significant density keep moving outward and pile up on the drum, forming the outer layer.

Heavy liquid with bigger viscosity is thrown to the lower surface of the disc and then slip out of the disc area to create the middle layer. Light liquid with smaller density keeps moving toward the drum center and forms the inner layer. Finally, the components of each layer will be discharged from different channels.