Functional model of barrel mixer of bulk solids

Abstract

Abstract The description of the researched barrel mixer with flat blades is carried out. Basing on experimental data, the authors have derived regression equations between barrel filling degree and drive power input and barrel capacity and angle of its setting, between coefficient of variation and mixing duration, between the share of the check component and barrel capacity and angle of its setting. An integrated functional model has been developed for the relationship between the main indicators of the mixer and the studied factors. Discrepancy between experimental data and calculated values of the functional model is about 15% of the calculated granularity of mixture. Inclination of the barrel at the angle of 15° to the horizontal is rational. Production of dry compound feed mixtures (with the density of 500-600 kg/m3) on farms in the existing small-capacitance mixers is irrational in view of long duration of mixing. Mixers need upgrading with the help of beaters’ construction change.