Improvement of methods of accounting and quality control of extracted raw materials is a very urgent problem, because the lack of effective methods of calculation lead to significant systematic errors in planning the volume and quality of production.

One of the important tasks of increasing the efficiency of mining enterprises is to ensure a high degree of homogeneity of the formed ore flows. The paper considers the method of optimization of the charge preparation process at the ore stockpile of PO Sevuralboksitruda. Optimization is performed for a promising two-stage stockpiling scheme, which is proposed to be introduced instead of the existing single-stage scheme.

Effective management of bauxite ore quality is an important reserve for increasing the profitability of production in the conditions of self-sufficiency.

As it is known, the efficiency of beneficiation significantly depends on the fluctuations of the qualitative composition of the ore being beneficiated in time.

As is known, in the enrichment of raw materials of unstable quality composition there are losses characterized by a decrease in the recovery of useful components, deterioration of the quality of concentrates, increased consumption of reagents, reduced productivity of equipment (hereinafter by the term losses we will mean losses from the processing of raw materials of unstable quality composition).

Ensuring stable characteristics of the qualitative composition of mineral raw materials coming for processing is one of the important directions of technical progress in the mining industry. ...

Stabilization of the qualitative composition of processed mineral raw materials, as a rule, significantly increases technical and economic indicators of the main technological processes and facilitates the conditions for the introduction of means of automation and computer technology for their control. ...

Fluctuations in the characteristics of the qualitative composition, which create significant difficulties in processing ores and, in particular, in choosing the optimal operating modes of processing units, require special measures to average the qualitative composition of ores.

The study of the regularities of the processes of averaging of mineral raw materials shows that the use of the apparatus of the theory of random functions is the most promising for research. The practical use of this device has a number of features both in processing initial information and in solving specific quality management tasks...

One of the common types of averaging facilities is the averaging stack. The qualitative composition of the ore stream arriving for processing varies randomly in time. Therefore, for the study of averaging processes, in particular in averaging stacks, the most promising is the apparatus of the theory of random functions, which allows us to directly take into account the internal relations of the processes of changing the qualitative composition of the averaged mineral raw material flows. However, there are no methods in the specialized literature that allow to calculate averaging processes in stacks with the help of the theory of random functions. Usually, the efficiency of averaging stacks is usually estimated by the ratio of dispersions (or mean square deviations) of the controlled components of the qualitative composition at the input and output of the stack. In the present work, similar estimations are adopted. Without violation of generality, we consider random fluctuations X(t)of some component X of the qualitative composition.