Fluidizing centrifugal pump

Details Fluidizing centrifugal pump Fluidizing centrifugal pump

F - Mech Eng,Light,Heat,Weapons

04

D

103/17

F04D 1/00 (2006.01) F04D 3/02 (2006.01) F04D 7/04 (2006.01) F04D 29/22 (2006.01)

Patent

CA 2002384

Abstract of the Disclosure A fluidizing centrifugal pump for medium to high consistency fiber suspension includes a housing having an inlet channel and an outlet and an impeller operatively rotatable about the pump axis. The impeller has a working vane and at least a blade extending substantially axially from the working vane and disposed in the inlet channel for fluidizing suspension which is received in the pump inlet. A feeding vane, preferably in the form of a spiral thread, is disposed in the inlet channel, radially-outwardly from the fluidizing blade and extending along at least a portion of the axial extension of the blade. The feeding vane, which may be operatively rotatable with the impeller or stationarily fixed to the pump housing, provides axially-directed feeding of suspension through the inlet channel toward the working vanes, concurrent with fluidizing of suspension in the channel by the impeller blade, thereby effectively preventing reverse flow of suspension in the inlet channel and correspondingly increasing the operating efficiency of the centrifugal pump.

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