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PROMISING AREA FOR THE
FURTHER DEVELOPMENT OF RICH IRON ORES AT GREAT DEPTHS A.
V. Kosenko Institute for Physics of Mining Processes
the National Academy Sciences of Ukraine, Dnipro, Ukraine Corresponding author: e-mail: andreyvladimirovich@email.ua Physical and
technical problems of mining production, 2019, (21), 160-172. https://doi.org/10.37101/ftpgp21.01.010 ABSTRACT Purpose. Development and feasibility study of resource-saving
technology for the actual mining of
rich iron ore extraction at great depths
using self-propelled mining equipment. Methods. Structural and functional analysis and synthesis of technological processes of the treatment
excavation; physical and numerical modeling of a high-intensity technological process of ore
production under collapsed waste rocks; technological design and feasibility
study of process schemes for mining rich
iron ores. Findings. The effectiveness of the practical implementation of the developed chamber version of the technology
of sub-level caving using self-propelled mining equipment has been proved. Since, compared with the base
one, it will increase the economic efficiency of mining rich iron
ore deposits at great depths
by 27.5%. Originality. The dependences of the effectiveness of
the developed chamber version of the technology of sub-level caving using
self-propelled mining equipment on mining-geological and mining factors are
established. Practical
implications. A rational chamber version of the
technology of sub-floor caving for mining rich
iron ore deposits using self-propelled tunneling, drilling and delivery equipment has been developed,
which allows to ensure: the
formation of stable treatment chambers of increased
volume; an increase in the
qualitative and quantitative indicators of ore extraction
by 4.6% and 4.8% (absolute), respectively; economic efficiency at the level
of 39.4 UAH /t. Keywords: rich iron ores, ore
losses, dilution, recovery indicators; ore output intensity,
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dim, 114-115. ABOUT AUTHORS Kosenko Andrii, Junior Researcher, Institute of Physics of the
Mining Processes of National Academy of Sciences of Ukraine, 2A Simferopolskaya Street, Dnipro, Ukraine, 49005. E-mail: andreyvladimirovich@email.ua
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