Device for separating and screening of bulk materials and a self

Details Device for separating and screening of bulk materials and a self Device for separating and screening of bulk materials and a self

1993-07-08

1995-04-04

Dayoan, D. Glenn

Crop threshing or separating

Cleaner

Sieve or grate

2091391, A01F 1232

Patent

active

054032350

ABSTRACT:
The device for separating and screening bulk materials, in particular crop materials, is formed by a zig-zag separator (9) with separation conduits (14) which are diverted once or several times in the vertical direction and through which a separator air stream (SL) flows, and its top and bottom which is covered by the bulk material (6, 7)--crop material--forms a screening surface (9a). The zig-zag separator (9) forms a cross flow orientation of the rising separator air flow (SL) at the bends (14a) of its separator conduits (14) and a rotating material vortex (GW) in the separator conduits (14), by means of which the light chaff/stalk parts (7) are moved upward and the grain (6) is released downward.

REFERENCES:
patent: 532550 (1895-01-01), Haggenmacher
patent: 1056527 (1913-03-01), Foster
patent: 2554416 (1951-05-01), Morrissey
patent: 2670845 (1954-03-01), Busack et al.
patent: 3374886 (1968-03-01), Lightsey
patent: 4511466 (1985-04-01), Jones et al.
patent: 4723558 (1988-02-01), Usick
patent: 5041059 (1991-08-01), Ricketts et al.

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