Wheat grain crushing technology modernization

The paper presents the results of the modernization of grain crushing technology. The main disadvantage of existing hammer crushers is low efficiency, increased metal consumption and energy consumption. The studies conducted have shown that when grinding grain with a blow of hammers in a crusher, fractions that are obtained that are uneven in size. The results obtained served as the basis for the development of a machine for crushing grain (patent of the Russian Federation No. 2742055 "Device for crushing grain"). The novelty of this invention lies in the quality of crushing and the yield of the product with repeated impact of spherical strikers on it, followed by the impact of grinding knives. The results of testing a pilot laboratory unit in comparison with a serially produced grain crusher are presented. The developed design makes it possible to inflict pinpoint impacts on the grain of wheat; as a result, even grain particles are obtained. The use of new equipment made it possible to develop an improved technological scheme for obtaining crushed wheat groats, excluding a number of technological operations. In the course of work, the processes of crushing wheat grain were studied using existing technologies and using the developed device. Based on the results of scientific research and engineering research, an improved technology of grain crushing has been developed, which consists of sequential operations: sorting before hulling, hulling, sorting hulling products, crushing, sorting crushing products, grinding, polishing, control of crushed cereals. Application of the developed technology will improve the efficiency of the technological line and the quality of the crushed product.