System for treatment of waste paper having a pulping drum and a

Details System for treatment of waste paper having a pulping drum and a System for treatment of waste paper having a pulping drum and a

1997-10-23

2000-07-04

Alvo, Steven

Paper making and fiber liberation

Apparatus

With beating, refining, and/or disintegrating means

241 72, 241 73, 241 793, 162 4, 162 55, D21B 132, D21B 502

Patent

active

060833505

ABSTRACT:
A wastepaper treatment method and system which combines the pulping and sorting in a pulping drum (10) with a following wet-strength processing, performed with high mechanical intensity, e.g., in a pulper (20). With the easily pulping paper materials being separated already from the drum (10) in a fines fraction (3), particular advantages result in terms of quality and economy.

REFERENCES:
patent: 1759385 (1930-05-01), Witham, Jr.
patent: 5094715 (1992-03-01), Ljokkoi et al.
patent: 5334285 (1994-08-01), Ortner et al.
patent: 5518580 (1996-05-01), Ortner et al.
patent: 5762756 (1998-06-01), Scott et al.

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