Apparatus and method for treating a pulp slurry of waste paper

Details Apparatus and method for treating a pulp slurry of waste paper Apparatus and method for treating a pulp slurry of waste paper

1993-04-14

1998-09-29

Hastings, Karen M.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 55, 209273, D21C 502

Patent

active

058141871

ABSTRACT:
An apparatus for treating a pulp slurry of waste paper including long fibers, short fibers and large and fine impurities includes the step of spraying the slurry through a gaseous medium upon a screen to separate long fibers and large impurities from small fibers and fine impurities.

REFERENCES:
patent: 3827567 (1974-08-01), Rundquist
patent: 4167438 (1979-09-01), Holz
patent: 4332638 (1982-06-01), Mauer et al.
patent: 4334984 (1982-06-01), Vagac et al.
patent: 4360402 (1982-11-01), Ortner et al.
patent: 4865690 (1989-09-01), Bernard et al.
patent: 4915821 (1990-04-01), Lamort
patent: 5124029 (1992-06-01), Fjallstrom et al.

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