Research the grain grinding process by disc-type percussion instrument

Abstract

One o f the most energy-intensive operations used in feed technology for livestock is grinding. Therefore, scientific research aimed at minimizing the consumption o f energy resources by technological machines - crushers and increasing the energy efficiency o f the process in general is an urgent task. When grinding grain with a moisture content index above the basic condition, there is a low efficiency o f the method o f crushing by impact due to the increased plasticity o f the material and an increase in the value o f the relative deformation that the grain can perceive before fracture. Partial solution o f this problem is possible by combining the method o f cutting and impact, which formed the basis o f a technical solution implemented in the scientific laboratory o f the Vinnitsa National Agrarian University, where the design was developed and experimental tests o f the vibration disc-type crusher were carried out. Further improvement o f the energy efficiency o f the technological operation o f grain milling requires the implementation o f theoretical studies the dynamics o f the process, and the determination o f the minimum amount o f energy required for destruction. The article, based on the laws o f mechanics o f solids and by application in rheological methods o f research topics are dispersed amplifying the absolute value o f deformation and destruction carried out in the maize corn under the action o f the applied shock-cutting load in analytical and graphic form. In addition, the results o f these studies allow us to establish the boundary values o f plastic and elastic absolute deformations occurring in the material, which is a prerequisite for the theoretical substantiation o f the law o f grinding.