Sifter and method of sifting

Details Sifter and method of sifting Sifter and method of sifting

1992-04-24

1993-12-21

Olszewski, Robert P.

Classifying, separating, and assorting solids

Sifting

Plane sifters

209320, B07B 128

Patent

active

052715043

ABSTRACT:
A sifter having a resiliently mounted housing with horizontal vibrated screens. Airborne material to be sifted is introduced between the screens where it is deflected by a deflector and a breaker ring to distribute material both upwardly and downwardly to the screens. An external passage from above the upper screen conveys air and material to a discharge pipe below the lower screen and below a bottom pan which feeds into the distribution pipe. An extended passage for discharging oversize material from between the screens is open along its length to the lower screen. A weir at the inlet of the extended passage has a thin slit below and a larger hole above to allow material under certain conditions to flow into the outlet passage.

REFERENCES:
patent: 2598199 (1952-05-01), Vissac
patent: 3616906 (1971-11-01), Miller
patent: 4576713 (1986-03-01), Melin
Kason Bulletin BT 84, "Blo-Thru" sifter from Kason, 4 pages.
Fluidizer brochure, A Subsidiary of General Resource Corp., Vibra-Flow In-Line Pneumatic Sifter, 2 pages.
Advantages of the Gump In-Line Pressure Sifter brochure, 4 pages.
Gump users manual, pp. 2-27.

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