Abstract: A sedimentation centrifuge includes a bowl which is supplied with a feed mixture, i.e., a solid-liquid mixture, from a supply pipe. When the bowl rotates at high speed, heavy solids are displaced radially outwardly toward and sedimented on the inner wall surface of the bowl. The solid particles are then discharged through a discharge hole of the bowl and an outlet passage by a screw conveyor in the bowl. During rotation of the bowl, fins on the screw conveyor assist in separating the liquid into heavy and light liquid phases with increased separation efficiency. The separated heavy and light liquids are separately discharged from the bowl through respective outlet passages.

Abstract: A sedimentation centrifuge includes a bowl which is supplied with a feed mixture, i.e., a solid-liquid mixture, from a supply pipe. When the bowl rotates at high speed, heavy solids are displaced radially outwardly toward and sedimented on the inner wall surface of the bowl. The solid particles are then discharged through a discharge hole of the bowl and an outlet passage by a screw conveyor in the bowl. During rotation of the bowl, fins on the screw conveyor assist in separating the liquid into heavy and light liquid phases with increased separation efficiency. The screw conveyor has screw flights with an inner portion which is inclined with respect to the axis of rotation of the bowl and an outer portion which is normal to an inner wall surface of the bowl. The separated heavy and light liquids are separately discharged from the bowl through respective outlet passages.

Abstract: A solid-and-liquid separation device revolving at high speed, comprising a bowl having a screw therein, said bowl being formed with cylindrical and canted sections, thereby permitting separation of a fluid containing solids into light and heavy liquids and solids.