Classifying – separating – and assorting solids – Plural – diverse separating operations – Aqueous suspension and sifting
Patent
1990-06-19
1992-01-07
Hajec, Donald T.
Classifying, separating, and assorting solids
Plural, diverse separating operations
Aqueous suspension and sifting
209255, 209273, B03B 700, D21D 500
Patent
active
050788590
ABSTRACT:
A stock screening apparatus has a material supply port which communicates with a material supply passage, and a first discharge port which communicates with a first discharge passage. The first discharge passage is located within a downward projected image of the material supply passage. In consequence, the stock which flows into a primary chamber flows in a vortex along the periphery of the primary chamber, and the foreign materials contained in this vortex, such as stones or metals, can thus be discharged through the first discharge passage when they are moved to the first discharge port. Also, a rotary shaft of a drum-shaped rotary body is disposed horizontally. An opening of the portion of the primary chamber located downstream of the drum-shaped rotary body and that of the secondary chamber are closed by a cover. As a result, the opening of the portion of the primary chamber located downstream of the drum-shaped rotary body and that of the secondary chamber can be opened by removing the cover, and maintenance of the apparatus, such as washing with water, can be easily performed without removing the plate screen.
REFERENCES:
patent: 3586172 (1971-06-01), Young
patent: 3664501 (1972-05-01), Cowan
patent: 3942728 (1976-03-01), Christ et al.
patent: 4017387 (1977-04-01), Hatton
patent: 4043919 (1977-08-01), Hutzler
patent: 4744894 (1988-05-01), Gould
patent: 4941970 (1990-07-01), Ahs
Hajec Donald T.
Satomi Seisakusho Co., Ltd.
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