Classifying – separating – and assorting solids – Precedent preparation of items or materials to facilitate... – Sorting special items or sorting by methods and apparatus...
Patent
1980-04-07
1981-08-11
Hill, Ralph J.
Classifying, separating, and assorting solids
Precedent preparation of items or materials to facilitate...
Sorting special items or sorting by methods and apparatus...
209 17, 209234, 209273, 209358, 162 4, 162 55, 241 4617, 241 20, 241 24, 241 28, D21D 504
Patent
active
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
Heinbockel Wolfgang
Kahmann Albrecht
Lambrecht Gerhard
Siewert Wolfgang
Escher Wyss GmbH
Hill Ralph J.
Kleeman Werner W.
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