On the regularity of open-pit mining technology in the mine energy distribution of local importance

Abstract

Mining technology, atmospheric and natural conditions in which the deposit is exploited determine the special specificity inherent in open-pit mines. The influence, role and significance of mining specificity are so significant and natural that in many cases they determine the basic principles of construction and operation of local mine power distribution systems within the established boundaries of open-pit mining of a deposit. However, the following fundamental issues remain unresolved in the mine electric power industry of open-pit mining: 1) local mine power distribution systems and types of open-pit networks for specific mining conditions constructed within the maximum established boundaries of open-pit mining of a deposit; 2) the optimal number and location of open-pit power supply points for periodically moving electrified mining machines in free running mode; 3) organization of planned operation of power distribution devices in open-pit mines with inconstant working horizons, with a periodically moving mining front and gradual advancement of excavator faces; 4) classification of mine power distribution systems and devices of local importance. The author's present work is devoted to the listed fundamental issues. Open-pit mining is located in special, unique and difficult conditions, as a result of which, without preliminary generalized study and research of mining specifics, it is impossible to create new, more advanced power distribution systems and electrical equipment for them, as well as rationally plan and operate mining and power engineering in open-pit mines.