Method and apparatus for pumping fibre suspensions

Details Method and apparatus for pumping fibre suspensions Method and apparatus for pumping fibre suspensions

F - Mech Eng,Light,Heat,Weapons

04

D

103/102, 103/115

F04D 1/06 (2006.01) F04D 7/04 (2006.01)

Patent

CA 1128368

ABSTRACT OF THE DISCLOSURE The disclosure describes a method and a device for pumping fibre suspensions of high consistency. Shear forces disrupting fibre flocs are induced near the front edge of the vanes of the impeller in a centrifugal pump which fluidize the fibre suspension thereby converting it into an easily pumpable state. This is effected by an inlet port having recesses and/or lobes in its inner surface in front of the impeller and/or at the front edge of the impeller vanes, which cooperate with the impeller vanes and/or a rotor having an outer surface in which there are recesses and/or lobes disposed into the inlet port.

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