Disc separator is a kind of mechanical equipment for continuous separation of two kinds of liquid or solid-liquid suspensions with density difference by centrifugal sedimentation principle. It has the advantages such as high speed, smooth operation, closed import and export system, low noise and good separation effect.

When the turbid liquid was fed into the high-speed rotating drum, it enters the disc stack along the channel, under the strong centrifugal force, the multi-components with different densities form three dynamic concentric rings: a small amount of solid particles with the greatest density move outward and accumulate on the wall of the drum to form the outermost layer; the denser heavy phase liquid is thrown onto the lower surface of the disc and slides down out of the disc area to form an intermediate layer; the denser light phase liquid moves toward the center of the drum to form the innermost layer. Then, the three components are discharged from the drum by their respective channels.