FIELD: agricultural engineering. SUBSTANCE: cleaning apparatus has tossing board, upper and lower baffle-type screens, upper and lower sieve shoes, and fan. Upper sieve shoe has non-adjustable guiding boards inclined to upper sieve, with inclination angle reducing toward sieve shoe end. Lower sieve shoe has inclined guiding board arranged on its front part. Said guiding board has adjustable inclination angle. When arranged in extreme lower position, said guiding board is spaced from sieve shoe bottom by fixed distance. Employment of non-adjustable guiding boards and adjustable guiding board provides for optimal redistribution of fan-generated air flow. EFFECT: increased efficiency, simplified construction and reduced grain loss. 1 dwg
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Authors
Dates
2003-02-20—Published
2000-09-11—Filed