Paper pulp centrifugal pump with gas separation

Details Paper pulp centrifugal pump with gas separation Paper pulp centrifugal pump with gas separation

1990-06-15

1992-02-11

Look, Edward K.

Rotary kinetic fluid motors or pumps

Including means for handling portion separated from working...

415 24, 162380, 162275, F03B 1104, F04D 110

Patent

active

050871714

ABSTRACT:
The invention relates to a centrifugal pump particularly adapted for pumping fibrous suspensions from within a reservoir, wherein the pump includes a rotor arranged wholly within the reservoir for cooperation with the bottom wall thereof to effect fluidization of suspension and discharge of the fluidized suspension from the reservoir for passage through the pump, wherein an entrained gas, such as air, is withdrawn from the pump by means of a unique pump-out mechanism disposed rearwardly of a shroud of an impeller of the pump and including pump-out vanes and a repeller shroud cooperating with the impeller shroud and pump-out vanes to define radially opening flow paths, wherein flow openings extend across the impeller shroud for flow communication with the radially opening flow paths. The mechanism may also include repeller vanes carried by the repeller shroud to extend rearwardly of pump-out vanes.

REFERENCES:
patent: 4770604 (1988-09-01), Luthi et al.
patent: 4936744 (1990-06-01), Dosch et al.

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