Screening apparatus

Classifying – separating – and assorting solids – Sifting – With liquid treatment

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Details

209306, B07B 120

Patent

active

040678008

ABSTRACT:
The pressurized screening apparatus for screening fibrous material in liquid suspensions includes a fixed cylindrical screen mounted within a housing to form an inner chamber. An axially extending annular channel receives the suspension. A dilution liquid is passed tangentially into the channel. The dilution liquid helps in the separation of the acceptable fibers from the undesired constituent so that a large proportion of the acceptable fibers is fed through the cylindrical screen and a minimal amount of undesired material flows to the bottom of the annular channel as part of the rejects.

REFERENCES:
patent: 3420373 (1969-01-01), Hunter
patent: 3437204 (1969-04-01), Clarke-Pounder
patent: 3533505 (1970-10-01), Nelson
patent: 3933649 (1976-01-01), Ahlfors

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