Self-dumping centrifugal separator drum
AssigneeWestfalia Separator AG
InventorOtto Kulker
Life of this patent
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Abstract
Centrifugal separator having a piston valve 3 for opening and closing of apertures adjacent the periphery of the drum for discharge of solids through passageway 19. The drum is provided with a ring 16 which in part defines the passageway, and which has a lip 15. The piston valve has a lip 13. When the piston valve 3 moves down, the apertures are open, and after a short interval the lip 13 strikes the lip 15 closing the passageway 19. Thereby discharge of solids is stopped. Thus, the piston valve need move in only one direction, up or down, for a discontinuous discharge of solids. That provides better control, since for a discharge, the piston need be accelerated in only one direction.
Claims6
In a centrifugal separator comprising a drum for the separation of a liquid mass into a heavier fraction and a lighter fraction and collection of the heavier fraction adjacent the drum periphery, ejection aperture means at the drum periphery for ejection of heavier fraction, valve means for opening the aperture means for discharge of heavier fraction from the drum by movement of a valve member from a first position to a second position, and for closing of the aperture means by movement of the valve member from the second position to the first position, a passageway for receiving heavier fraction from the valve means, the improvement which comprises means for closing said passageway upon arrival of the valve member at said second position, whereby upon movement of the valve member from the first position to the second position, the aperture means is opened, heavier fraction is discharged from the drum and said passageway is closed so that the discharge of heavier fraction is stopped, and upon movement from the second position to the first position the passageway is opened, heavier fraction is discharged from the drum, and said aperture means is closed so that the discharge of heavier fraction is stopped.
Dependencies are inferred from the claim text.