Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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PARAMETERS OF EQUIPMENT FOR SORTING OFF-BALANCE COPPER-ZINK ORES

Afanasyev A.I. 1 Pankov S.A. 1 Potapov V.Y. 1
1 Ural state Mining University
Processing the ore with a low content of useful components leads to a significant increase of energy consumption and the decline of economic performance of mining and processing enterprises. The task of research is the development of technology and removal mechanism of waste in the tailings. This allows to significantly reduce the volume processed rock mass, to reduce energy consumption for crushing, grinding and increase the concentration of useful mineral in the product of separation. Separation off-balance sulfide ores by density and friction properties is almost impossible because of little difference between these properties. In the copper-zinc sulfide ores electrical and thermal properties ( specific heat, thermal conductivity, coefficient of volume expansion ) differ significantly from those of the reference to the enclosing enclosing waste rock. As a result of experiments was obtained dependence of the specific breakdown voltage of the content of sulfides in a piece off-balance ore. Preliminary sorting and electroprocessing off- balance ores leads to increase in an the output of fine classes by 18%, reduce the time and 18...20% decreasing of the energy consumption and, finally, reduce the consumption of grinding media.