Method and arrangement for the treatment of a fiber suspension

Details Method and arrangement for the treatment of a fiber suspension Method and arrangement for the treatment of a fiber suspension

1993-06-08

1995-11-28

Chin, Peter

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With classifying, separating or screening of pulp

162 60, D21C 908

Patent

active

054704324

ABSTRACT:
A method and apparatus for the treatment of fiber suspensions of the pulp and paper industry, in particular, the so-called postscreening of pulp in the bleaching stage. The method includes that the pulp discharged from a bleaching stage is diluted to the screening consistency, that the pulp is screened in a pressure screen and that the accept fraction is supplied to the subsequent treatment stage at the supply consistency of the stage without a separate thickening stage. The screening is preferably carried out in a narrow-slot screen.

REFERENCES:
patent: 3830688 (1974-08-01), Mannbro
patent: 4529520 (1985-07-01), Lampenius
patent: 4999085 (1991-03-01), Luntamo
patent: 5000842 (1991-03-01), Ljokkoi

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