During the extraction of gold-bearing ores in mines, the amount of air in the ventilation network of mines increases in proportion to the increase in the length of mine workings and the deepening of mines. The article discusses ways to regulate the air flow into the mine, prevent external and internal losses of air volume in the mine, reduce aerodynamic resistance, and in this case, the use of equipment and devices used for proper air distribution.
The paper analyses the methods of evaluating the functioning of mining and transport equipment of mining enterprises. Formulas of leading scientists, which take into account the criteria of evaluation of functioning of mining and transport equipment for analysis of research in this field, are given. Dependences for determination of technical, operational productivity of excavators, dump trucks and crushing equipment, taking into account specific mining-geological, mining-technical, climatic, organisational and other conditions of equipment operation are offered. It gives an opportunity for planning and rationing of excavation-loading machines, selection and provision of transport and establishment of rational mode of their functioning. Functional criteria of theoretical, technical and operational functioning of mining and transport equipment of mining enterprises are established. In this regard, it is of interest to determine the value of the criteria for assessing the functioning of mining and transport equipment, taking into account the factors outlined.
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