Method and apparatus for pumping fibre suspensions

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

1987-12-10

1989-08-08

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Plural runners having different type flow paths

F04D 110

Patent

active

048548197

ABSTRACT:
A method and a device for pumping fibre suspensions of high consistency are described. Shear forces disrupting fibre flocs are induced in the front of the impeller in a centrifugal pump which fluidize the fibre suspension thus converting it into an easily pumpable state. This is effected by an inlet part of the pump having recesses and/or lobes in its inner surface in front of the impeller which cooperate with a rotor having an outer surface in which there are lobes. The rotor is disposed into the outlet part of the vessel during operation.

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patent: 4275988 (1981-06-01), Kalashnikov et al.
patent: 4426190 (1984-01-01), Shapiro et al.
patent: 4435122 (1984-03-01), Niskanen et al.
patent: 4619736 (1986-10-01), Henricson et al.
patent: 4637779 (1987-01-01), Sherman et al.
patent: 4770604 (1988-09-01), Luthi et al.

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