Determination of the main efficiency indicators of forage grain grinder

Abstract

Grinding of forage grain is a required operation for preparing it for feeding. Crushers, which are widely used for fodder grain crushing, do not provide making a crushed product with a leveled fractional composition, and the grinding process requires high energy intensity. Therefore, the development of alternative grinders that will ensure high-quality grinding of forage grain with less energy is relevant. The article describes the design of the developed test model of a fodder grain grinder of impact centrifugal effect, presents a method for studying its operation when grinding winter rye grain. Grain grinding was carried out with different productive capacity and speed of rotor rotation, and using sieves with holes of different diameters. Based on the study of granulometric composition of the crushed grain, dependence diagrams were plotted that show main quality indicators of grinding process. When using sieves with holes of different diameters, it is possible to obtain a crushed product that meets the requirements of standards for various kinds of farm animals. When comparing energy consumption of a test model of impact centrifugal grinder with hammer-type crushers, the efficiency of using the proposed design of a grinder is confirmed.