Apparatus for processing waste paper

Classifying – separating – and assorting solids – Precedent preparation of items or materials to facilitate... – Sorting special items or sorting by methods and apparatus...

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209 17, 209234, 209273, 209358, 162 4, 162 55, 241 4617, 241 20, 241 24, 241 28, D21D 504

Patent

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042832756

ABSTRACT:
An installation for processing waste paper containing a stock pulper or slusher equipped with a rotor and two sieves or screens having different size holes or openings. By means of the sieve having the larger size openings there is conducted the obtained stock suspension through a primary line system which, for instance, leads to a papermaking machine. Cooperating with the sieve having the larger size openings or holes is an auxiliary circulation circuit containing a device for the removal of contaminants or rejects. There is preferably arranged at the auxiliary circulation circuit or system a separator for heavy contaminants or rejects, a pump, a secondary stock pulper or fiberizer and a sieve or filtering device.

REFERENCES:
patent: 2033123 (1936-03-01), Cowles
patent: 3942728 (1976-03-01), Christ et al.
patent: 4127479 (1978-11-01), Kurth et al.
patent: 4129259 (1978-12-01), Vokes

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