Justification of the efficiency of using a vibrofriction separator in the preparation of mustard seed material

Abstract

The aim of the work is to study the possibility of improving the sowing qualities of mustard seed material by its purification and sorting on a vibrofriction separator with non-perforated friction working surfaces. According to DSTU 2240-93 in the mustard seed of original and elite mustard seeds must be at least 99% by weight of the source material, and the content of seeds of other crops and weed seeds should not exceed 40 pieces/kg. In musty seed material 1–3 reproductions mustard seeds must be at least 98 %, seeds of other cultivated plants are allowed not more than 320 pieces/kg, and weed seeds – not more than 400 pieces/kg. Germination of conditioned original seeds should be at least 90%, and elite and 1-3 reproductions – not less than 85 % (DSTU 2240-93). The article presents the results of separation of mustard seed material on a vibrofriction separator after its preliminary purification. For one pass of the seed heap through the vibroseparator received 16.9 ± 0.2 % by weight of the source material, seed material (first fraction), which meets the requirements of the state standard for the original seed and 56.9 ± 0.2 % of the material (second and third fraction), which meets the requirements for conditioned seeds 1–3 reproductions.