Prospects for Improving the Technology of Post-harvest Grain and Seed Processing and Technical Means to Implement it

The paper presents the data of long-term research on the composition of harvested mass coming for post-harvest processing from grain harvesters, outlines possible ways to improve the technology of postharvest grain and seed processing. It proposes a number of engineering solutions and describes grain separators for sorting and grading all types of grain. A secondary aspiration channel with a double grain cleaning capacity and an installed pendulum valve was developed, providing high-quality cleaning of grain heaps in all types of processing and increases the sorting of biologically defective grain up to 20 %. Some solutions are proposed to reduce air and energy consumption by 20–30 % by mounting a sieve boot onto a corrugated elastic pneumatic cylinder and sequential use of air flow in a fractional separator for secondary cleaning of seeds, as well as a fundamentally new scheme of machines servicing air.