STUDY OF THE RELATIVE ENERGY CONSUMPTION OF A DRUM MILL TYPE SAG 8.5 X 5.3

Abstract

The article discusses the topic of the specific power consumption of a drum mill type SAG 8.5x5.3. The purpose of the study is to determine the influence of some basic parameters like angular velocity of the mill drum, the wear on the drum’s lining, mass of the mill filling, loading rate of the mill with ore and flow rate of incoming water of the product to be milled on the relative power consumption of the mill for maintaining quality. To determine the energy consumption of the mill, the listed parameters were measured and a Fisher matrix was constructed. In accordance with the selected target function, energy consumption patterns are synthesised depending on the loading rate of the mill with ore, the mass of the mill filling,the flow rate of the incoming water and the wear on the drum’s lining. Data processing was performed using the STATGRAPHICS computer programme and an adequate model has been found according to the selected target function. The target function has been found to satisfy the conditions for maintaining quality and reducing costs.