Decanter centrifuge

Decanter centrifuge

Decanter centrifuge is a machine that uses centrifugal sedimentation method to separate suspension. It passes the suspension of fine particles (particle size d>10μm) through a high-speed rotating drum to accelerate the solid-liquid sedimentation speed to achieve solid-liquid separation and make the suspension The liquid becomes relatively clean liquid and solid sludge. The decanter centrifuge is mainly composed of a drum, a screw, a differential system, a liquid level baffle, a drive system and a control system.

 
Separation Process

The separation process of the decanter centrifuge is as follows: the suspension is fed into the drum, and a cone section is designed in front of the drum. A concentric liquid layer, called the liquid ring layer. The solid contained in the material is deposited on the drum wall under the action of centrifugal force, and then the dry material is pushed to the conical end of the drum through the screw operation, and the supernatant liquid is discharged from the large end of the drum to achieve solid-liquid separation. In the casing, the drum and the screw conveyor are connected by two concentric bearings, the main motor drives the drum to rotate through the V pulley, and the drum is connected to the casing of the differential through the hollow shaft at the left bearing. The output shaft of the conveyor drives the screw conveyor and the drum to rotate in the same direction, but the rotation speed is different.

Parameter List