FIELD: agricultural engineering, in particular, technique for post-harvest sorting and cleaning of cereal, groats, leguminous, corn and sorghum seeds and seeds of other crops.
SUBSTANCE: apparatus has hopper with opening, shutter, first fraction discharge channel provided with supporting screen and communicating with vertical pneumatic sorting channel equipped with settling chamber having air discharge aperture and discharge gate. Pneumatic sorting channel has throat made in the form of truncated cone concentrically positioned within said channel and having corrugated elastic mid portion and height adjustment screw mechanism. Throat has barriers positioned at entrance part of corrugated elastic mid portion.
EFFECT: wider operational capabilities and improved quality of seed cleaning process.
3 dwg
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