Estimating efficiency increase patterns of grain material separation in seed refiner

The main ways of increasing the bulk separation efficiency in the seed refiner which is a system of the particular technological operations allowing selecting grain material with the tailored properties are determined. The impact of the particular technological operations proceeding in the seed purifier on the entire system of the postharvest handling of the grain material is analysed. Operation schemes of various seed-cleaning units containing a specified set of machines for processing the grain material of the program quality are presented. A structural design model of the seed refiner performance is developed. Using the results of the field and bench testing, as well as the mathematical models whose adequacy has been earlier proved, the functioning of the various schemes of grain cleaning machines is simulated. An economic analysis of the seed refiner performance data based on the simulation results is made at various prices on the original and refined grain.