Patent ID: 7510519
Filing Date: 2009-03-31
Classification: B04B

Abstract:
1. A solid bowl screw centrifuge comprising: a drum having a solids discharge at a conical end and at least one discharge opening at an end opposite the conical end, the at least one discharge opening arranged with an axial drum lid; a screw rotatable at a different speed relative to the drum; a centripetal chamber section connected behind the drum lid with the at least one discharge opening; a centripetal pump arranged to discharge a liquid phase from the solid bowl screw centrifuge; an adjustable throttling device connected in front of the centripetal pump in the centripetal chamber section, the adjustable throttling device being assigned to the at least one discharge opening; wherein the throttling device is constructed as a throttle disk arranged in the centripetal chamber section, connected behind the at least one discharge opening and connected in front of the centripetal pump; and wherein the throttle disk is axially adjacent the centripetal pump and is axially movable in the centripetal chamber to cooperate with a surface of the centripetal chamber to adjust an amount of flow out of the discharge opening.