Waste paper processing system

Classifying – separating – and assorting solids – Plural – diverse separating operations – Aqueous suspension and sifting

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Details

209211, 162 4, 2105121, B04B 304

Patent

active

047042010

ABSTRACT:
A waste paper processing system in which a fibrous suspension of waste paper is cleaned and sorted. The fine cleaning of the suspension is carried out by means of one or more conical centrifuges in a subsidiary stream which branches off from the mainstream and is later recombined therewith. The portion containing the largest content of coarse substances is introduced from a vertical sorter located in the mainstream into the subsidiary stream in which it is sorted and cleaned. There is practically no need to process the waste from the conical centrifuges and the conical centrifuge unit can be designed to be substantially smaller and thus more economical in terms of energy because of the smaller flow of material therethrough.

REFERENCES:
patent: 3849246 (1974-11-01), Raymond et al.
patent: 4334984 (1982-06-01), Vagac et al.

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