СПОСОБ ОПРЕДЕЛЕНИЯ ОПТИМАЛЬНОЙ ДЛИНЫ ТРИЕРНОГО ЦИЛИНДРА

Abstract

. It is known that agricultural enterprises are equipped with grain cleaning units of the ZAV40 and KZS-40 types. It is known that in 90% of cases trier blocks of units are taken out of service, since they do not provide the required quality of grain cleaning and are unreliable in operation - technological failures occur due to blockages of cellular cylinders. This problem can be partially solved by using indented blocks with the optimal length of the indented cylinder. This will lead to a significant reduction in the loss of clean grain to waste while maintaining an acceptable level of residual contamination and increasing reliability. A mathematical model has been developed for the operation of the grading unit according to the parameters of residual contamination and losses of clean grain. It was found that the residual contamination decreases exponentially along the length of the doll cylinder. The loss of clean grain to waste grows linearly. It was found that the loss of pure grain to waste along the length of the oat cylinder decreases exponentially. A formula has been obtained to determine the optimal length of the indented cylinder, which depends on the degree of impurity release and the amount of pure grain loss for the doll cylinder. The criterion of optimal operation of the indenter block has been substantiated. The hypothesis about the same degree of impurity release along the entire length of the indented cylinder was confirmed. On the basis of the results obtained, recommendations are given for the developers of indented blocks.