B - Operations – Transporting – 04 – B
Patent
B - Operations, Transporting
04
B
233/25
B04B 1/20 (2006.01)
Patent
CA 1038837
ABSTRACT. This invention relates to centrifugal separators but more particularly to a solid bowl centrifugal separator for seperating a coarse solids fraction, a fine solids fraction and one or two liquid fractions having different specific gravities from feed comprising a liquid-solids mixture. The present invention relates to a solid bowl centrifugal separator which comprises an elongated bowl tapered at both ends and mounted for rotation about an axis. Coaxially mounted within the bowl is a helical screw conveyor having portions of opposite pitch to transport each of the two solids fractions towards their respective discharge ports located in the tapered ends of the bowl. Means are also provided for the discharge from the bowl of two liquid fractions of differing specific gravity. Each of the fractions in discharged into separate segments in the collector casing. More efficient separation is accomplished and efficient separation may be achieved in a single centrifuging step where heretofore two or more consecutive contrifuging operations were required.
249317
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