Method and apparatus for pumping fiber suspensions

Rotary kinetic fluid motors or pumps – Plural runners having different type flow paths

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F04D 110

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active

047800534

ABSTRACT:
A method and apparatus for pumping fiber suspensions of high consistency. Shear forces disrupting fiber flocs are induced in the front of the impeller in a centrifugal pump which fluidize the fiber suspension thus converting it into an easily pumpable state. This is effected by an inlet part of the pump having rib-shaped 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 in to the outlet part of the vessel during operation.

REFERENCES:
patent: 3961758 (1976-06-01), Morgan
patent: 4275988 (1981-06-01), Kalashnikov et al.
patent: 4435122 (1984-03-01), Niskanen et al.
patent: 4476886 (1984-10-01), Niskanen et al.
patent: 4637779 (1987-01-01), Sherman et al.
patent: 4650342 (1987-03-01), Goodwin

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