System for feeding a suspension to a pressurized vessel

Details System for feeding a suspension to a pressurized vessel System for feeding a suspension to a pressurized vessel

1996-08-20

1998-04-28

Czaja, Donald E.

Paper making and fiber liberation

Apparatus

Digester

162237, 162241, 162242, D21C 706

Patent

active

057440042

ABSTRACT:
System for feeding a suspension, preferably a suspension of chips in a liquid carrier, to a pressurized vessel in a cellulose pulp mill, which system comprises at least one pump (25, 26) between a low-pressure part and the pressurized vessel for driving the suspension from the low-pressure part into the vessel, which pump is of the type which comprises a number of parallel discs (40, 42) which are held together to form a stack (39) and rotate in a pump chamber (36) in a pump housing about a common axis of rotation, with the spaces (46) between the discs being greater than the particles in the suspension, and with an axial inlet and a tangential outlet for the suspension. The invention also includes a pump and an apparatus unit which are intended to form part of the system.

REFERENCES:
patent: 3411986 (1968-11-01), Buchberger et al.
patent: 4071399 (1978-01-01), Prough
patent: 4773819 (1988-09-01), Gurth
patent: 5300195 (1994-04-01), Richter et al.
patent: 5476572 (1995-12-01), Prough
patent: 5622598 (1997-04-01), Prough

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