THE WAYS TO IMPROVE THE EFFICIENCY OF CENTRIFUGAL-SIEVE SEPARATOR ACTING AS WILD OAT REMOVER
The development of highly-efficient grain cleaning units encounters a complicated problem due to the lack of highly-efficient machinery, particularly sifting cylinders (machines for cleaning grain from long and short impurities). The output capacity of existing sifting cylinders with alveolar working surface does not exceed 10 t h. This paper discusses the theoretical and experimental data on the substantiation and implementation of the technology associated with the use of the idea of cleaning grain from long and short impurities on sieve working surfaces. The original scheme of the technological process and the design of a highly-efficient wild oat remover are substantiated. The proposed technological scheme and the main structural parameters of a centrifugal-sieve separator with preliminary preparation of grain material on a conical dividing sieve passed an experimental test. As a result of the experimental studies, the problems on increasing the efficiency of the centrifugal-sieve separator acting as wild oat remover were solved, and the preliminary separation device turned out to be a very efficient working tool when the separator operated as a cockle remover and a pre-cleaning separator.