RESULTS OF THE RESEARCH ON THE SUBSTANTIATION OF CONSTRUCTION PARAMETERS OF A CHAMBER SEED TREATER UNDER FIELD CONDITIONS

The main shortcomings in the work of seed treaters were identified, which include increased crushing of seeds, uneven supply, increased humidity of seeds after dressing. It has been established that when the seed treaters are working at seed deliveries of 70-100% of the maximum, there is a sharp change in the quality indicators, which can be reduced by using a two-disk distributing and two-level reflecting devices. The objective of the research is to substantiate the design and technological parameters of a chamber seed treater with a two-disk distributing and two-level reflecting devices that can improve the quality of seed treatment. For this purpose, a prototype chamber seed treater with a two-disk distributing and two-level reflecting devices was developed, manufactured and tested in the field. A study of the sowing qualities and technological properties of seeds of spring wheat of the Raduga variety showed that the seed purity was 99.54%, their moisture content before pickling was 13.9%, their germination rate was 98% with 1000 seeds weighing 41 g, and the crushing of the seeds was 0.14%. The optimal values of the distance between the annular disk and the upper level reflector L1 = 60 mm, the diameter of the lower level reflector D2 = 350 mm, the height of the upper level reflector H1 = 30 mm, the height of the lower level reflector H2 = 30 mm with 0.11-0.05% crushing seeds with the chamber seed treater. The maximum seed flow rate of 5.98 kg/s was established, corresponding to a 2.2% feed irregularity and 0.06% crushing by the chamber seed treater with 150 mm opening of the flap of the petal dispenser.