Substantiation of the structural-functional scheme and performance of a rotary treater of periodic action for layer-by-layer seed treatment

Annotation Purpose. Improving the efficiency of pesticide use by developing a batch-type rotary seed treater for layer-by-layer seed treatment, which will improve the quality of seed treatment and environmental safety. Methods. The study used an analytical and computational method using a software environments Microsoft Office. Results. A structural-functional diagram of a rotary treater of periodic action for the layer-by-layer application of protective-stimulating-nutrient preparations to seeds has been developed, which involves the use of a seed treatment chamber with a vertical rotor installed in it, to which seeds and components of chemical preparations are sequentially applied to the seeds. A relationship has been established between the productivity of the seed treatment process and the mass of the treated seed portion, the loading time of the seed portion, the time of processing the seed portion, the drying time of the treated seed portion, the unloading time of the treated seed portion and the number of applied layers of preparations. Conclusions. The productivity of the process of layer-by-layer seed treatment increases significantly with an increase in the mass of a portion of seeds and sharply decreases with an increase in the number of applied layers of preparations. The productivity of two-layer seed treatment varies from 0.97 t/h with a mass of a portion of seeds of 10 kg to 13.62 t/h with a mass of a portion of seeds of 140 kg, the productivity of six-layer seed treatment varies from 0.4 t/h with a mass of a portion of seeds of 10 kg to 5.66 t/h with a mass of a portion of seeds of 140 kg. Keywords: portion of seeds, disinfectant, layer-by-layer processing, protective-stimulating-nutritious preparations.