Methods of regulating the work of units at irrigation pumping stations

Abstract

The article shows that the process of grain crushing is not sufficiently studied. A practical way to control the quality of grain grinding. The crushing process was studied by various scientists, but they did not consider the module for the quality of grain grinding in a rotary crusher. The article is devoted to assessing the quality of grain grinding by compiling a module. For a qualitative analysis of the grinding of the experimental crusher, the experimental plan was adopted for various values of the working chamber clearance and rotor rotation frequencies. The experimental results were examined in wheat at 750 rpm and a working chamber gap of 1.5 mm. The results obtained allow us to determine the average size of the grinding particles. For the analytical description of processes according to experimental data, various standard distribution functions of a random variable were used. To determine the appropriate case of the form of the distribution of the discrete function for various gaps. The technique of determining the coefficients of models in the form of linear equations by the least squares method is considered. The technique can also be used to find the coefficients of nonlinear functions. The distribution density of random variables is determined which allows to determine the probability of a random variable falling into the range of values. The degree of correspondence between empirical and theoretical distributions was estimated based on a hypothesis at a significance level. The grinding quality of the experimental machine, with serial hammer crushers shows the average grinding value, the particle density distribution of hammer machines is much lower.