№70-02
Economical-ecological efficiency of usingemulsion explosive in underground ore mining
M. Kononenko1, O. Khomenko1, I. Myronova1, I. Kovalenko2
1 Dnipro University of Technology, Dnipro, Ukraine
2 Ukrainian State University of Chemical Technology, Dnipro, Ukraine
Coll.res.pap.nat.min.univ. 2022, 70:22-35
https://doi.org/10.33271/crpnmu/70.022
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ABSTRACT
Purpose. Establishment of economical-ecological efficiency of the use of emulsion explosives (EEX) in underground mining of ores using various mining equipment.
The methodology of research. Using the correlation-regression analysis of the obtained calculated data, exponential dependences of the cost of carrying out 1 m3 of horizontal development drift and breaking were established depending on the compressive strength of the ore or rock, the type of explosive (EX) and mining equipment. The calculation of the level of ecological hazard in the conditions of the mines of the Private Joint Stock Company "Zaporizʹkyy Iron Ore Plant" (PJSC "ZIOP") was carried out using a technique that is negatively affected by pollutants released during the use of (EX).
Findings. The calculation of economic efficiency in the place driving of development drifts with the use of different mining equipment and types of (EX) has been carried out. A general exponential dependence is established for determining the cost of carrying out 1 m3 of a mine working, depending on the compressive strength of rocks when using various types of (EX) and tunneling equipment. The calculation of the economic efficiency of stoping with the help of various complexes of mining equipment and types of (EX) has been made. The exponential dependences of determining the cost of breaking 1 m3 of ore were obtained using various drilling rigs and shot loaders using different types of (EX). An ecological assessment of the use in the conditions of an iron ore mine established a decrease in the concentration of ecological hazardous substances and a decrease in the coefficients of ecological hazard, which led to a decrease in the technogenic load on the atmospheric air.
The originality. The cost of carrying out 1 m3 of horizontal development drift and breaking varies exponentially depending on the compressive strength of the ore or rock, the type of (EX) and mining equipment, with the help of which the economic efficiency of the use of (EEX) in underground ore mining.
Practical implications. The results of the research were obtained empirical dependences of the cost of carrying out 1 m3 of horizontal development drift and breaking on the compressive strength of ore or rocks using domestic and foreign mining equipment, which make it possible to calculate the economic efficiency of using cartridge or bulk (EX) in underground ore mining.
Keywords: iron ore, emulsion explosive, mining equipment, economic efficiency, ecological assessment.
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