The dewatering centrifuge mainly consists of a rotating drum and a screw conveyor with a hollow shaft. Sludge is fed into the drum through the feed pipe and the hollow shaft. Under the centrifugal force generated by the high-speed rotation, the heavier solid particles are thrown onto the inner wall of the drum, forming a solid layer (solid ring layer); the water, with its lower density and less centrifugal force, forms a liquid layer (liquid ring layer) inside the solid layer.
The sludge in the solid layer is slowly propelled by the screw conveyor to the conical end of the drum and continuously discharged through outlets around the drum; the liquid in the liquid ring layer continuously overflows from the weir and is discharged outside the drum, where it collects and is then discharged.
