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The aim of the research was to establish a functional dependence of the quality of the feed mixture on the degree of filling the volume of the modernized drum mixer and the proportion of the controlled component with the identification of the working area of the investigated working body. The methodology for studying the quality of the mixture of a drum mixer provided for the experimental establishment of the function of changing the coefficient of variation of the concentrated feed mixture with a three-level combination of the degree of filling of the tank and the proportion of the controlled component. The conducted studies based on the developed methodology allowed to identify an adequate functional dependence of the influence of the proportion of the controlled component and the degree of filling of the mixer drum. The results obtained indicate that an increase in the proportion of the controlled component improves the quality of the mixture with the nature of the hyperbolic dependence. Technological requirements for the quality of the mixture are observed when the proportion of the controlled component is at least 17%. This imposes a partial restriction on the use of the mixer for the preparation of dry concentrated mixtures based on protein-vitamin supplements and crushed feed grain. The effect of the degree of filling on the quality of the mixture is more complex and corresponds to a parabolic dependence. With the degree of filling 0.28-0.32 of the volume of the drum, the best indicators of the quality of the mixture are observed. The optimum mixing is observed with a batch mass of 45-51 kg at a density of 620 kg/m 3 .

A model of the influence of the degree of filling of the drum mixer on the quality of the feed mixture