FIELD: agriculture.
SUBSTANCE: invention relates to agriculture and can be used for post-harvest processing of crops. The method includes preliminary cleaning and separation of small weeds on two centrifugal sieve separators with two tiers of cylindrical sieves installed in series one after another with further grain supply for trier cleaning. On the first separator, on the upper tier, sieves with oblong holes of 2.0-2.2 mm are installed, and on the lower tier with round holes with a diameter of 6.5-8.0 mm. On the second centrifugal-sieve separator on the upper tier, sieves with round holes with a diameter of 3.6-4.0 mm are installed, and on the lower tier - a sieve with round holes with a diameter of 5.0-5.25 mm.
EFFECT: invention provides an increase in the efficiency of grain cleaning from hard-to-separate impurities.
1 cl, 2 dwg
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