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US 5,205,933 AGranted
Pusher centrifuge
AssigneeSulzer-Escher Wyss GmbH
InventorHoppe Bernd
Life of this patent
Estimating the term…
Abstract
A pusher centrifuge which includes a housing and at least two screening drums for dewatering infed material. The screening drums and a pusher ring are mounted for rotary movement about a longitudinal axis. The pusher ring is further mounted for oscillatory movement, with respect to the longitudinal axis. During advancing movement of the pusher ring, the screening drums are rotated relative to each other about the longitudinal axis.
Claims14
A pusher centrifuge comprising:
- (a) a housing;
- (b) at least two screening drums, comprising a first screening drum and a second screening drum, arranged in longitudinal succession, said screening drums being mounted for rotary movement about a longitudinal axis, each of said screening drums having a respective inner surface, said first screening drum being positioned within said second screening drum for movement along said inner surface of said second screening drum;
- (c) at least one pusher ring mounted for rotary movement about within said second screening drum said longitudinal axis, said pusher ring having a surface facing axially of said longitudinal axis;
- (d) means for feeding material to be centrifuged into said housing proximate an end of said first screening drum;
- (e) an outlet through which material exits from said housing proximate an end of a said screening drum remote from said end of said first screening drum, said surface of said pusher ring facing in a direction toward said outlet;
- (f) means for oscillating said pusher ring along said longitudinal axis for advancing said material towards said outlet along said inner surface of said second screening drum;
- and
- (g) means for simultaneously rotating said pusher ring with respect to said inner surface of said second screening drum during said advancing of said material toward said outlet.
5 more elements
A pusher centrifuge comprising:
- a housing provided with a solid material outlet;
- at least two screening drums having a common axis of rotation;
- said at least two screening drums being arranged in succession for rotation in a first direction within said housing about said axis of rotation;
- each screening drum having a respective inner surface, said at least two screening drums comprising a first screening drum positioned within a second screening drum for movement along said inner surface of said second screening drum;
- said two screening drums defining an internal chamber;
- means for infeeding material to be centrifuged into said internal chamber at an end region thereof;
- at least one pusher ring located at said inner surface of one of said second screening drum;
- means for imparting an oscillating movement to the at least one pusher ring in the direction of said axis of said at least two screening drums, to advance towards said solid material outlet partially dewatered material to be centrifuged, along said inner surface of a next following screening drum of said at least two screening drums arranged in succession;
- and
- means for simultaneously imposing a rotary movement on said at least one pusher ring, with respect to said inner surface of said second screening drum, about said axis of said at least two screening drums during said oscillating movement of said at least one pusher ring.
7 more elements
A pusher centrifuge comprising:
- a housing;
- two screening drums, comprising a first screening drum and a second screening drum, arranged in longitudinal succession, said screening drums being mounted for rotary movement about a longitudinal axis, each of said screening drums having a respective inner surface, at least an end portion of said first screening drum positioned within at least an end position of said second screening drum;
- a pusher ring mounted for rotary movement about said longitudinal axis, said pusher ring comprising an end portion of said first screening drum;
- an inlet pipe for feeding material to be centrifuged into said housing and within said first screening drum;
- an outlet through which material exits from said housing;
- means for transmitting oscillatory movement to said pusher ring along said longitudinal axis, for advancing said material towards said outlet along said inner surface of said second screening drum;
- and
- means for rotating said pusher ring with respect to said inner surface of said second screening drum during said advancing of said material toward said outlet.
5 more elements
Dependencies are inferred from the claim text.