Improving energy efficiency of coal transportation by adjusting the speeds of a combine and a mine face conveyor

Authors

DOI:

https://doi.org/10.15587/1729-4061.2019.156121

Keywords:

coal combines, specific energy consumption, mine face scraper conveyers, cargo flow characteristic, direction of combine's motion

Abstract

The object of this research is the process that forms the weighted specific energy consumption for the transportation of rock mass by a coal face scraper conveyor at intensive coal mining under conditions of the non-uniform movement of a cleaning combine. The subject of this study is the regularities in the influence of uneven feed speed of a cleaning combine on energy indicators for the transportation of breakage face by a scraper conveyor under conditions of intensive coal mining. The aim of this work is to substantiate a technique to improve energy efficiency in the operation of the system "Cleaning combine ‒ mine face conveyor" under intensive coal mining conditions. We have statistically processed the results of experimental research into feed speed of the cleaning combine KDK500 at the eastern coal face No. 23 of deposit с11 at the mine "Yuzhnodonbasskaya" (Ugledar, Ukraine) of GP "Donetskugol", undertaken by the Institute "Dongiprouglemash" (Ukraine). We have constructed the structural and mathematical models of the process that enables the output cargo flow of breakage face and forms specific energy consumption for the transportation of rock mass by a coal face scraper conveyor. A mathematical model of the operating process takes into consideration the impact of the magnitude and non-uniformity of the feed speed of a cleaning combine on energy consumption at cargo transportation. We have established significant non-uniformity in the speed modes, in the productivity of a cleaning combine, caused by the mining-geological conditions and the nature of the technological process, by existing procedures for harmonizing the operational modes of mining and transporting equipment at breakage faces. The influence has been established of speed modes and efficiency of the combine on specific energy consumption for the transportation of cargo by a coal face scraper conveyor. The result is the high irregularity of a cargo flow both along a coal face and along further transport chain, which leads to a significant increase in energy consumption for cargo transportation. We have examined the effect of speed modes during operation of a combine, consequently its efficiency, on energy indicators for the process of coal transportation and the distribution of a cargo flow. It was established that increasing the feed speed of a cleaning combine and decreasing the speed of a scraper conveyor bring down specific energy costs for the transportation of discharged rock mass along a coal face

Author Biographies

Mykola Stadnik, Vinnytsia National Agricultural University Sonyachna str., 3, Vinnytsia, Ukraine, 21008

Doctor of Technical Sciences, Professor

Department of Electrical Systems and Automation Technology in the Agricultural Sector

Dmytro Semenchenko, Donetsk National Technical University Shybankova sq., 2, Pokrovsk, Ukraine, 85300

PhD

Department of Mining and Processing Complexes

Anatoly Semenchenko, Donetsk National Technical University Shybankova sq., 2, Pokrovsk, Ukraine, 85300

Doctor of Technical Sciences, Professor

Department of Mining and Processing Complexes

Pavlo Belytsky, Donetsk National Technical University Shybankova sq., 2, Pokrovsk, Ukraine, 85300

Senior Lecturer

Department of Mining and Processing Complexes

Svitlana Virych, Donetsk National Technical University Shybankova sq., 2, Pokrovsk, Ukraine, 85300

PhD

Department of Applied Mechanics

Viktor Tkachov, National Technical University “Dnipro Polytechnic” D. Yavornytskoho ave., 19, Dnipro, Ukraine, 49005

Doctor of Technical Sciences, Professor

Department of Automation and Computer Systems

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Published

2019-02-13

How to Cite

Stadnik, M., Semenchenko, D., Semenchenko, A., Belytsky, P., Virych, S., & Tkachov, V. (2019). Improving energy efficiency of coal transportation by adjusting the speeds of a combine and a mine face conveyor. Eastern-European Journal of Enterprise Technologies, 1(8 (97), 60–70. https://doi.org/10.15587/1729-4061.2019.156121

Issue

Vol. 1 No. 8 (97) (2019): Energy-saving technologies and equipment

Section

Energy-saving technologies and equipment

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Copyright (c) 2019 Mykola Stadnik, Dmytro Semenchenko, Anatoly Semenchenko, Pavlo Belytsky, Svitlana Virych, Viktor Tkachov

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