Method and apparatus for treating fiber suspension

Details Method and apparatus for treating fiber suspension Method and apparatus for treating fiber suspension

1988-10-02

1990-04-10

Hajec, Donald T.

Classifying, separating, and assorting solids

Sifting

With liquid treatment

209250, 209306, B07B 120

Patent

active

049158228

ABSTRACT:
A method and an apparatus for treating a fiber suspension wherein the fiber suspension is fed into a treatment apparatus having treatment zones and divided into two fractions, an accept and a reject, the reject being guided from one zone behind at least one adjacent treatment zone to a separate reject treatment zone, in which the remaining accept of the suspension is discharged. The apparatus being divided into a plurality of axial zones and having a rotor and at least one screen arranged in an outer housing, and in the treatment space between the screen and the rotor, members are arranged for guiding the suspension from the different treatment zones of the treatment space to the separate reject treatment zone.

REFERENCES:
patent: 2796809 (1957-06-01), Sprau
patent: 3759392 (1973-09-01), Syrjanen
patent: 4374728 (1985-02-01), Gauld
patent: 4585551 (1986-04-01), Musselmann et al.
patent: 4642189 (1987-02-01), Hooper
patent: 4744894 (1988-05-01), Gauld

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