RESULTS OF EXPERIMENTAL RESEARCH OF THE HOMOGENIZER-DISPERSER OF LIQUID FEED FOR PIGS
Abstract
Effective pig farming is impossible without providing animals with high quality, balanced feed at a competitive price and in the required quantity. The article analyzes the dependences determined during the experiment between various parameters of liquid feed production. In particular, changes in the content of 0–0.5 mm particles in the mixture depend on the frequency of rotation of the rotor, the diameter of the stator inlet and the operating time of the equipment. It was also found that the index of stratification of the mixture varies depending on the same parameters. The temperature of the mixture, the power consumption of the electric motor and the energy consumption also change according to the frequency of rotation of the rotor, the diameter of the inlet hole of the stator and the operating time of the equipment. The energy consumption was calculated as the product of the power consumption of the electric motor and the operating time of the equipment. In order to evaluate the influence of each of these factors on the optimization criteria of the liquid feed preparation process, studies were conducted according to the Box-Benkin D-optimal plan matrix of the second order for three factors. Each experiment was carried out in three replicates to ensure the reliability of the results obtained. The dependencies of the specific energy consumption for the execution of the process also vary from these factors. Particularly interesting is the fact that when the value of the indicator of stratification of the mixture is less than 5% and the efficiency indicator is minimized, the optimal value of the equipment operation time is observed in the range from 45.1 to 50.4 minutes for different types of input material. The specific energy consumption indicator also depends on the type of grain used. The lowest specific energy consumption is: for soybeans – 0.696 MJ/kg, for wheat – 0.794 MJ/kg, for barley – 0.896 MJ/kg.
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