| 摘要 |
The invention relates to agricultural facilities for grading solid bulk materials, substantially grain, vegetable and grass varieties by means of air flows. The inventive device for separating a bulk mixture in a fluid medium comprises means for loading and supplying the bulk mixture, a jet generator which is arranged thereunder and is provided with nozzles and an air pump, a separation chamber, collectors for finished and repeated fractions, at least one air flow deflector and an upward air flow former. The air flow deflector is in the form of an undulated convex surface arranged on the rear wall of the separation chamber and the upward air flow former is in the form of ejection ports which are used for passing atmospheric air and are embodied in the separation chamber bottom between the second, third and fourth fraction collectors. The ejection ports are in the form of a slit or a set of holes positioned in rows. |
