B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
233/8
B01D 17/038 (2006.01) B01D 45/16 (2006.01)
Patent
CA 1292459
P-301 CONTINUOUS FLOW CENTRIFUGAL SEPARATION ABSTRACT An apparatus and method for centrifugally separating a continuous flow of substances having differing densities along a constrained helical course. The assembly (10) comprises A helical conduit for constraining the flow having a velocity established along a closed helical tubular course (25), including an inlet (26) and an outlet (28) respectively situated at opposite terminal ends of the conduit. The invention is characterized by a peripheral outlet duct (42) disposed in either of an inner or preferably an outer periphery of the conduit between the inlet (26) and outlet (28) terminals for removing a peripheral fraction concentrated by centrifugal forces in either of the inner and outer periphery, respectively, of the conduit. An unremoved fraction of the flow is allowed to continue along the helical course to and through the terminal outlet. The method comprises the steps of defining the closed helical conduit, subjecting the flow to centrifugal force generated by the constrained flow velocity established therealong, forcing a denser substance by inertia to migrate through the flow to an outer periphery of the helical conduit, concentrating in an outer peripheral fraction of the flow leaving a lesser density peripheral fraction remaining concentrated at the inner periphery of the conduit. The method is characterized by the steps of stripping or diverting either of the inner or outer concentrated P-301 peripheral fractions through a peripheral outlet duct (42) situated in the inner or outer periphery of the conduit.
528710
Shortt William C.
Smart & Biggar
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