Babiy Ye.V. Economic validation of the ore pre-dressing complex used for the overburden rocks in the Kryvbas quarries

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Parent Category: Geo-Technical Mechanics, 2016

Category: Geo-Technical Mechanics, 2016, Issue 129

Geoteh. meh. 2016, 129, 205-216

ECONOMIC VALIDATION OF THE ORE PRE-DRESSING COMPLEX USED FOR THE OVERBURDEN ROCKS IN THE KRYVBAS QUARRIES

¹Babiy Ye.V.

¹IGTM NAS of Ukraine

Abstract.The objective of this work is to validate economics of applying the ore pre-dressing complex for the overburden rocks containing magnet components in the Krivbass iron-ore quarries. Design and actual productivities of the Krivbass processing plants were analyzed. It was found that productivity of the PSC "Central MPP" was 19 million tons/year, while the Glavatskiy, Pe-trovsky, Artemovskiy quarries of this enterprise together with the Ordzhonikidze Mine produced 15.5 million tons. In order to improve technical and economic indices of the enterprise, it was pro-posed to use the ore pre-dressing complex in the Petrovsky Quarry. A technological scheme was developed with the semi-mobile crushing-and-dressing complex in the transferring point on the earth surface. The article presents a scheme of the rock volume distri-bution when the ore pre-dressing complex is used for the overburden rocks and their impact on the total quarry productivity. An expected annual economic effect of the pre-dressing technology used for the overburden rocks in the Petrovsky Quarry of the Central MPP Company was calculated and amounted to UAH 27.4 million; payback period of capital investment was 2.4 years, which was 2.8 times less than the normative 6.7 years.

Keywords:quarry, rock overburden, mineral losses, preliminary enrichment, process flow diagram, crushing and enrichment complex, expected economic effect.

REFERENCES

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About the authors:

Babiy Yekaterina Vasilevna, Candidate of Technical Sciences (Ph.D.), Senior Researcher, Senior Researcher in Department of Geomechanics of Mineral Opencast Mining Technology M.S. Polyakov Institut of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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