Research of the Rheological Parameters of Feed Grain in the Process of the Combined Impact-Cutting Grinding

Abstract

Taking into consideration current realities and various factors, which create difficulties for the effective functioning of Ukraine’s national economic system, the Agro-Industrial Complex of Ukraine acts as the most stable part of it, that is characterized by conservatism and is one of the main and stable cross-sectoral formations due to revenues. However, despite the strategic priority of the AIC, the high level of energy consumption by domestic producers does not enable providing an appropriate level of competitiveness of Ukraine’s AIC in domestic and foreign markets, at the same time the rationalisation of energy use necessitates the substantiation of the energy-saving variant of its development by implementing energy-efficient machines and technologies in the system of feed preparation and feeding animals. In the technological process of feed preparation, the share of energy consumption for grinding can be more than 50%. Thus, it becomes obvious that the profitability and competitiveness of the livestock industry largely depend on the energy efficiency of realizing this technological operation, and the reduction of energy intensity in this process is an urgent task. Modelling energy-saturated mechanical processes, particularly for the grinding operation, it is necessary to consider structural-mechanical properties of the product, its ability to deform in different modes of interaction with the executive body of the technological machine. The six-link mechanical-rheological model, which is built by combining the simplest models of rheological bodies and enables reproducing the structural and mechanical properties of the object of processing – maize grain with the required degree of reliability, has been offered in the article. Theoretical research of the rheological characteristics of the material, including the assessment of the relative deformation of the maize grain in the grinding process using he impact-cutting method depending on the moisture content and internal force factors, has been conducted. In the future, the obtained results will be used to evaluate the parameters of plastic and elastic absolute deformations in the material while studying the kinetics of the grinding process.

Efficiency of Using a Probiotic Feed Additive in Feeding Kurchat Broilers

“…It was proved that poultry fed by researched additive had the higher lysine contents in the white meat that the control sample has; the second group had by 0.8 % (Р<0.001), the third one had by 0.19% (Р<0.01) and the fourth had by 1.66% (Р<0.001) than the control group has (Table. 13).…”

Energy Intensity of the Process of Destruction of Feed Grain in Conditions of Dynamic Contact Interaction With the Edge of the Disc Impactor

“…As it has been already noted, the structural-mechanical indicators of the material significantly are significantly affected by moisture content. Table 1 shows the values of rheological coefficients for the selected material (dent corn grain) depending on the moisture [11][12][13].…”

Development of a Functional Model of a Vibrating Mill With Adaptive Control System of Mode Parameters

“…Assuming the proportionality of the forces of inelastic resistance to the first degree of the velocity of movement of the grinding chamber, the amount of power consumed by the load is defined as [14]:…”

“…In the process of operation of the proposed adaptive vibration mill with spatial-circulating motion of the bulk medium loading, two control (adjustment) circuits work independently. The contour of adjustment to the resonant mode of operation, the composition of which can be conditionally included in the following positions 1,14,15,16,17,19,13,9. The contour of adjustment to the technologically optimal parameters of the vibration field of the grinding chamber the following positions 1, 14, 17, 18, 20, 21, 9 can be credited in successive order.…”