Analysis of technologicaland energy parameters of ball mills

The paper considers issues related to the analysis of the most important process parameters of ball mills, such as changes in productivity, power consumption, amount of water entering the mill, oil pressure in the mill hydraulic system, pulp density during mill unloading. It was found that the power consumed by the mills varies within 836–1260 kW. The energy characteristics of the mills, as well as specific power consumption, correlation coefficients and regression equations are presented. The values of the coefficients of variation, asymmetry and excess show good agreement with the normal distribution law of random variables. Specific power consumption for mills varies within 6.71–9.94 kWh/t. In the future, it is planned to carry out a verification calculation of the drive electric motors of the mills in order to establish that the actual power of the electric motor corresponds to the calculated one. Such a check allows to objectively assess whether the actual power consumption corresponds to the adopted technology of the grinding process in the autogenous grinding body of the mining and processing plant.