Feed accelerator system including accelerating vane apparatus
First Claim
1. A feed accelerator system for use in a centrifuge, the system comprisinga conveyor hub rotatably mounted substantially concentrically within a rotating bowl, the hub including an inside surface and an outside surface,an accelerator secured within the conveyor hub and including a distributor having a distributor surface,a feed pipe mounted substantially concentrically within the conveyor hub for delivering a feed slurry to the centrifuge, the feed pipe including a discharge opening positioned proximate to the distributor surface,at least one feed slurry passageway between the inside surface of conveyor hub and the outside surface of the conveyor hub, andan overspeeding apparatus associated with the passageway, the apparatus including a baffle extending outwardly from the passageway,a plurality of partitions extending in a circumferential direction from the baffle so as to form a plurality of discharge channels, anda flow directing and overspeeding vane disposed within each discharge channel and extending radially and circumferentially from the baffle, each vane having a different forward discharge angle with respect to the direction of rotation.
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Abstract
A feed accelerator system for use in a centrifuge, the system comprising a conveyor hub rotatably mounted within a rotating bowl, the hub including an inside surface and an outside surface. At least one feed slurry passageway is disposed between the inside surface of conveyor hub and the outside surface of the conveyor hub, and at least one helical blade having a plurality of turns is mounted to the outside surface of the conveyor hub. A vane apparatus is associated with the passageway and is disposed between two adjacent turns of the helical blade. The vane apparatus may include an inwardly extending baffle and/or an outwardly extending accelerator vane. Alternatively, a U-shaped channel may be associated with the passageway, the U-shaped channel including a plurality partitions attached to the discharge end of such channel so as to form a plurality of discharge channels and a flow directing and overspeeding vane disposed within each channel, each vane having a different forward discharge angle.
80 Citations
7 Claims
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1. A feed accelerator system for use in a centrifuge, the system comprising
a conveyor hub rotatably mounted substantially concentrically within a rotating bowl, the hub including an inside surface and an outside surface, an accelerator secured within the conveyor hub and including a distributor having a distributor surface, a feed pipe mounted substantially concentrically within the conveyor hub for delivering a feed slurry to the centrifuge, the feed pipe including a discharge opening positioned proximate to the distributor surface, at least one feed slurry passageway between the inside surface of conveyor hub and the outside surface of the conveyor hub, and an overspeeding apparatus associated with the passageway, the apparatus including a baffle extending outwardly from the passageway, a plurality of partitions extending in a circumferential direction from the baffle so as to form a plurality of discharge channels, and a flow directing and overspeeding vane disposed within each discharge channel and extending radially and circumferentially from the baffle, each vane having a different forward discharge angle with respect to the direction of rotation.
Specification