Classifying – separating – and assorting solids – Plural – diverse separating operations – Aqueous suspension and sifting
Patent
1979-04-24
1981-02-24
Hill, Ralph J.
Classifying, separating, and assorting solids
Plural, diverse separating operations
Aqueous suspension and sifting
209211, 209273, D21D 504, B04C 510
Patent
active
042526400
ABSTRACT:
An apparatus for sorting a fibrous suspension for removing both heavy weight and light weight particulate impurities is disclosed. An antechamber is positioned above a main chamber. Fibrous stock suspension is inletted tangentially to the antechamber and moves down to the main chamber. An annular rotor in the main chamber creates a vortex of the fibrous stock suspension, which drives the heavier particulate impurities to the side wall of the main chamber and moves the lighter weight impurities toward the center of the vortex. The heavier weight impurities fall to the bottom of the main chamber from which they are removed. The lighter weight impurities are removed by a drainage line extending toward the center of the antechamber. Above the rotor is a strainer and the rotor cooperates with the strainer to drive purified fluid suspension to an annular outlet chamber surrounding the bottom of the antechamber and from there into an outlet line.
REFERENCES:
patent: 3912622 (1975-10-01), Bolton et al.
patent: 4107033 (1978-08-01), Holz
patent: 4165841 (1979-08-01), Musselmann et al
Hill Ralph J.
J. M. Voith GmbH
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