Horizontal decanter centrifuge is mainly composed of conical drum, screw pusher, differential system, bearing base, frame, housing, main and auxiliary motor and electrical system. The main motor drives the drum and the secondary motor drives the planetary gear differential, which generates the drum and spiral differential. Under the strong centrifugal force produced by the high-speed rotation, the centrifuge can be separated continuously.

The drum and the screw pusher rotate at a certain differential speed and high speed. The material continuously enters the spiral feeding chamber from the feeding tube, and then accelerates and enters the drum. Under the action of centrifugal force field, the heavier solid phase deposits on the drum wall to form the sediment layer. The solid deposits are continuously pushed to the cone end of the drum by the screw pusher, and discharged from the slag discharge outlet after drying in the drying zone. The lighter liquid phase forms an inner liquid ring, which continuously overflows the drum from the overflow outlet at the large end of the drum and discharges out of the machine through the outlet.