Classifying – separating – and assorting solids – Plural – diverse separating operations – Aqueous suspension – sifting – and stratifying
Patent
1977-11-10
1979-01-23
Halper, Robert
Classifying, separating, and assorting solids
Plural, diverse separating operations
Aqueous suspension, sifting, and stratifying
209240, 209273, 210512R, B03B 532
Patent
active
041360184
ABSTRACT:
Method and apparatus for pulping and grading waste material in which the waste material is introduced into a cylindrical chamber having two end walls with a perforate screen in one of the end walls. An impeller in the chamber adjacent the perforate screen provides for pulping and pumping of the stock as well as provides rotational movement of the stock within the chamber. Lightweight rejects are continuously removed through an outlet centrally located in the end wall opposite the screen and heavy rejects are removed through an outlet in the cylindrical wall adjacent the end wall opposite the screen. The stock is introduced to the chamber through an annular inlet which surrounds and is coaxial with respect to the lightweight rejects outlet line.
REFERENCES:
patent: 1355270 (1920-10-01), Roberts
patent: 2220676 (1940-11-01), Cowles
patent: 3458038 (1969-07-01), Young
patent: 3844488 (1974-10-01), Neitzel
patent: 3859206 (1975-01-01), Baggaley
patent: 3912622 (1975-10-01), Bolton et al.
patent: 4017033 (1977-04-01), Tra
Clark Llewellyn E.
Matthew John B.
Nunn Bruce E.
Beloit Corporation
Gill Michael L.
Halper Robert
Hokanson Jon E.
Mathews Gerald A.
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