| 摘要 |
A conveyor (40) for a centrifuge for separating a feed material into solid and fluid parts, which conveyor (40) comprises a tapered portion of gradually tapering external diameter and at least one impeller (250) thereadjacent, the arrangement being such that in use, feed material can be passed through an interior of said conveyor (40), rotational speed being imparted thereto by said at least one impeller (250) prior to leaving said conveyor from said tapered portion, characterised in that in use, said feed material impinges on said at least one impeller (250) with an axial velocity substantially parallel to the longitudinal axis of said conveyor (40), whereby said at least one impeller (250) can impart radial speed to said feed material whilst it moves with axial velocity. <IMAGE> <IMAGE>
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