公开(公告)号：US3825177A

公开(公告)日：1974-07-23

申请号：US35027973

申请日：1973-04-11

Applicant: WESTFALIA SEPARATOR AG

Inventor： KOHLSTETTE W ,  HEMFORT H

IPC: B04B1/14

CPC classification number: B04B1/14

Abstract: Self dumping centrifugal separator having a paring chamber and disk for removal of clarified liquid, and, for dumping, a main valve at the periphery of the drum for periodic ejection of solids and a secondary valve for removal of liquid from the separating zone to reduce the discharge of liquid through the main valve during dumping. Means, such as springs, urge the secondary valve into a normally closed position. A control chamber is provided for receiving liquid to urge the secondary valve to the open position and a passageway communicates the control chamber with an annular groove separated by a weir from the paring chamber, the weir being of greater inside diameter than the inside diameter of the paring chamber cover. Upon interruption of flow of clarified liquid from the paring disk, during initiation of dumping, liquid in the paring chamber overflows the weir and flows into the annular groove, through said passageway to the control chamber and forces the secondary valve to the open position for discharge of liquid from the separating zone.