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Ukr Eng Назад

INTENSIFICATION OF SUB-LEVEL CAVING ORE USING SELF-PROPELLED EQUIPMENT

O.Ye. Khomenko¹*, A.V. Kosenko², S.V. Dmitrenko³

¹Dnipro University of Technology, Dnipro, Ukraine

²Institute for Physics of Mining Processes of the National Academy of Sciences of Ukraine, Dnipro, Ukraine

³PJSC “Kryvyi Rih Iron Ore Plant”, Kryvyi Rih, Ukraine

* Corresponding author: e-mail: homenkoo@nmu.org.ua

Physical and technical problems of mining production, 2021, (23), 136-148.

https://doi.org/10.37101/ftpgp23.01.010

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ABSTRACT

Purpose. Creation of high-performance technology for the development of rich iron ores with the integrated use of self-propelled mining equipment in the deep horizons of the mine "Batʹkivshchna" PJSC "Kryvyi Rih iron ore plant".

Methods. The following research methods were used in the work: analytical in the analysis of mining-geological and mining conditions of development of deposits of rich iron ores in the field of the mine "Batʹkivshchna" of PJSC "Kryvyi Rih Iron Ore Plant"; technological design – at development of the technological scheme of sub-level caving with use of self-propelled mining equipment; economic and mathematical in determining the main technical and economic indicators for the options of the system of sub-level caving.

Findings. The efficiency of implementation in practice of the offered variant of the sub-level caving with complex use of self-propelled equipment on all processes of cleaning works is proved.

Originality. Rational parameters for the variant of the sub-level caving with complex use of self-propelled equipment on all processes of cleaning works are established and dependences of change of economic efficiency at its application on parameters of process of delivery are received.

Practical implications. The developed version of the sub-level caving using self-propelled mining equipment can be used both in the development of medium capacity and powerful ore deposits, and in the development of very powerful ore deposits and increases productivity on technological processes: drilling preparatory and threaded horizontal workings twice and vertical – 4 times; drilling of deep wells – 2.2 times; delivery of ore mass in 3 times – and also the worker on development system in 2.6 times.

Keywords: sub-level caving, self-propelled equipment, mining and geological conditions, rich iron ore, development, face-entry drivage, actual mining

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