Apparatus for recovering paper-making fiber from contaminated wa

Details Apparatus for recovering paper-making fiber from contaminated wa Apparatus for recovering paper-making fiber from contaminated wa

1984-11-27

1985-09-03

Goldberg, Howard N.

Solid material comminution or disintegration

Apparatus

With separation or classification of material

209270, 209298, 241 62, B02C 1313

Patent

active

045387672

ABSTRACT:
A system for the recovery of paper-making fiber from contaminated waste paper products including plastic film and other lightweight non-paper contaminants includes a novel rotary screening machine comprising a perforated drum rotatable about a generally horizontal axis and having openings at opposite ends for the delivery of liquid and paper furnished to the drum and the discharge of contaminants, respectively, a plurality of vanes for lifting material from the bottom of the drum to an upper region as the drum rotates, and a rotor mounted within the drum and having blades which are disposed in spaced relation to the drum vanes in a position to intercept material falling from the upper region of the drum and fling it back against the drum. The resulting fibers or flakes of useful paper are washed through the drum perforations while the rejected contaminants are conveyed to and removed via the discharge end of the drum.

REFERENCES:
patent: 1500170 (1924-07-01), Werner
patent: 2060685 (1936-11-01), Murphy
patent: 2846153 (1958-08-01), Krogh
patent: 3507387 (1970-04-01), Alldred, Jr. et al.
patent: 3931937 (1976-01-01), Hahn et al.
patent: 4124168 (1978-11-01), Bialski et al.
patent: 4382559 (1983-05-01), Hellberg

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