Scientific Journal of KubSAU

Traditional processing technology of piles of sunflower seeds in agriculture requires consecutive through the whole set seed-cleaning machines installed in seed-cleaning complex or aggregate, for each stage of which are organic impurity, broken seeds, shriveled and milled seeds. The seeds of the main culture are subjected to long-time effects of the working bodies, leading to their injury and the necessity of manning the production line machines the same performance that is not rational. One of the ways to enhance the process of separating the seed material in seed-cleaning complex is its fractionation by applying photoelectron separator at the final stage of seed treatment. Qualitative performance of photoelectron separator on fractional technology showed that the purity of the seeds varied from 99.80 up to 99.98% depending on their size Ø7–Ø8 mm Ø8–Ø9 mm, respectively. The content of seeds of the main culture in the waste ranged from 65.60 % (fraction Ø7–Ø8 mm) to 68.83 % (fraction Ø8–Ø9мм). The weight of 1000 seeds ranged from 117 g (fraction Ø7–Ø8 mm) to 146 g (fraction Ø8–Ø9мм). Seeds obtained in fractions and existing technology (without fractionation) meet the requirements of GOST. The output of treated seeds in the fractionation varied from 93.20 % (fraction Ø7–Ø8 mm) to 92,90 % (fraction Ø8–Ø9 mm). Comparative tests of photoelectron separator F 5.1 in seed-cleaning complex by the division of sunflower seeds on the existing and fraction technology showed that in the photoelectron separator it is necessary to use fractional technology. So, as it allows reducing the content in waste of seeds of the main culture and increase the qualities of seeds depending on their size fractions