DEVELOPMENT OF A GRINDER-MILLER WITH ROLLING WORKING BODIES FOR SMALL FARMS
Abilzhanuly T. Iskakov R. Abilzhanov D. Gulyarenko A. Seipataliyev O. Khamitov N.
2025Technology Center
Eastern-European Journal of Enterprise Technologies
2025#5Issue 1102 - 110 pp.
The object of the research is the technological process of grain feed crushing in a roller-type crusher with small working dimensions and the interaction of individual grains with the roller surfaces within the inter-roller gap. The study focuses on ensuring stable productivity of up to 200 kg/h for small farms. A structural and technological scheme of a compact grinder-miller was developed, and an experimental prototype was produced. The length and diameter of the rollers were selected according to the operational requirements of small agricultural enterprises. A hypothesis was formulated, assuming that grain particles behave as discrete bodies stochastically distributed in the inter-roller gap and partially aligned along the roller length before deformation. This allows a realistic description of their interaction with the working surfaces and the resulting energy consumption. Analytical expressions were obtained for determining productivity and required power based on a mathematical model linking roller geometry, kinematic parameters, and the probabilistic nature of grain flow. Experimental studies verified the model by varying roller rotation speed from 56 to 178 min-1. At 178 min-1, the productivity reached 180 kg/h, and the consumed power was 1020 W. The discrepancy between theoretical and experimental productivity was 7.5%, and between power values 2.02%. The results confirm the validity of the developed discrete–probabilistic model and its applicability for optimizing the design and operating parameters of compact roller-type crushers for decentralized feed production. Copyright
grinder-miller , interroller gap , productivity , required power , roll rotation frequency
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Laboratory of Innovative Equipment for Animal Husbandry, Russian Federation
Department of Technological Machines and Equipment, Russian Federation
Department of Standardization, Metrology and Certification, Russian Federation
Department of Agrarian Technique and Engineering Mechanics Kazakh National Agrarian Research University, Abay ave., 8, Almaty, 050010, Kazakhstan
Scientific Production Center of Agricultural Engineering, Raiymbek ave., 312, Almaty, 050005, Kazakhstan
S. Seifullin Kazakh Agrotechnical Research University, Zhenis str., 62, Astana, 010000, Kazakhstan
Laboratory of Innovative Equipment for Animal Husbandry
Department of Technological Machines and Equipment
Department of Standardization
Department of Agrarian Technique and Engineering Mechanics Kazakh National Agrarian Research University
Scientific Production Center of Agricultural Engineering
S. Seifullin Kazakh Agrotechnical Research University
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