M. L. Khazin / News of the Ural State Mining University. 2019. Issue 1(53), pp. 128-135

Purpose of the work is to increase the energy saving of a mining enterprise by using electricity and reducing the cost of diesel fuel.
Methodology of the work. Analysis of possible ways for energy saving of a mining enterprise.
Results of the work. The extraction industry is one of the main consumers of energy, therefore, mining companies put a greater emphasis on energy saving measures and cost-effective ways of energy generation. One of the largest expenditure item when mining is the energy required for extraction and processing of mineral ores. While the development of mineral deposits, the main type of technological transport is a motor vehicle with diesel engines. The global extraction industry spends billions of liters of diesel fuel annually to transport rock mass. Along with many advantages, diesel engines have some disadvantages as well. One of the promising areas of energy saving of a mining enterprise is the use of electricity. This leads to savings in diesel fuel and reduced exhaust emissions. Five main ways of power supply to an engine are considered: additional power cable, air contact network, built-in battery, fuel cells, electric generator, and trucks with a combined power plant.
Conclusions. Improving the efficiency of the mining enterprise can be achieved through significant fuel savings, higher productivity of the transportation process of rock mass, reduction of vehicle fleet, reduction of operating and maintenance costs. An electric motor drive allows you to increase time between engine repairs, reduce the cost of energy consumed by regeneration and return it to the network, as well as reduce or eliminate emissions of exhaust gases.

Keywords: energy saving, electric motor drive, underground mining, open pit mining, dump truck with a combined power plant, ecology.

REFERENCES

1. Sheshko O. E. 2017, Ecological and economic substantiation of the possibility of waste load reduction from open-cast transport. Gorny
Informatsionno-Analiticheskiy Byulleten [Mining Informational and Analytical Bulletin], no. 2, pp. 241–252.(In Russ.)
2. Stepanenko V. P. 2016, Application of combined power plants in the extraction industry with renewable sources and energy storage. Gorny Informatsionno-Analiticheskiy Byulleten [Mining Informational and Analytical Bulletin], no. 9, pp. 138–146. (In Russ.)
3. Kozyrev S. A., Amosov P. V. 2014, Ways to normalize the atmosphere of deep open pit. Vestnik MGTU [Scientifi c journal of Murmansk State Technical University], vol. 17, no. 2, pp. 231–237. (In Russ.)
4. Koptev V. Y., Kopteva A. V. 2017, Structure of energy consumption and improving open-pit dump truck effi ciency. IOP Conference Series: Earth and Environmental Science, vol. 87, no. 2, 022010.
5. Jacobs W., Hodkiewicz M. R., Bräunl T. 2015, A Cost–Benefi t Analysis of Electric Loaders to Reduce Diesel Emissions in Underground Hard Rock Mines. IEEE Transactions on industry applications, vol. 51, no. 3, pp. 2565–2573.
6. Paraszczak J., Svedlund E., Lafl amme M. 2014, Electrifi cation of loaders and trucks – a step towards more sustainable underground mining: ICREPQ’14. Renewable Energy and Power Quality Journal (RE&PQJ), vol. 1, no. 12, pp. 81–86. https://doi.org/10.24084/repqj12.240
7. Barthel J., Jung K., Seewig J. 2015, High-voltage DC trailing cable systems for mobile machinery . IECON 2015: 41st Annual Conference of the IEEE Industrial Electronics Society, pp. 001145–001151. https://doi.org/10.1109/IECON.2015.7392254
8. Slavikovsky O. V., Mitroshin G. N. 2011, Underground transport with combined geotechnology. Gorny Informatsionno-Analiticheskiy Byulleten [Mining Informational and Analytical Bulletin], no. 5, pp. 88–93. (In Russ.)
9. Mazumdar J. 2013, All electric operation of ultraclass mining haul trucks. Conference Record – IAS Annual Meeting (IEEE Industry Applications Society), pp. 1–5. http://dx.doi.org/10.1109/IAS.2013.6682568
10. Varaschin J., De Souza E. 2015, Economics of diesel fl eet replacement by electric mining equipment. 15th North American Mine Ventilation Symposium. Blacksburg, Virginia, June 21–25.
11. Stepuk O. G., Zuyenok A. C. 2013, BelAZ diesel-trolley transport: prospects of use in the extraction industry. Gornyy Zhurnal [Mining Journal], no. 1, pp. 52–55. (In Russ.)
12. Khazin M. L., Tarasov P. I., Tarasov A. P. 2015, Calculation of energy storage for open-pit contact-battery battery-trolley loco. Aktual’nyye voprosy mashinovedeniya [General issues of mechanics], vol. 4, pp. 91–93. (In Russ.)
13. Kukkonen S. 2017, Energy consumption analysis of battery electric vehicles in underground environments. Underground Mining Technology, pp. 569–580.
14. Demers M., Labelle D., Wilson R., Matikainen O. 2010, Hybrid Underground Loader-2010. Project Update. MDEC Conference, October 5–8, Toronto, Ont., Canada.
15. Markov V. A., Sivachev V. M., Sivachev S. M. et al. 2016, Fuel elements for transport. Gruzovik [Truck], no. 3, pp. 13–19.
16. Miller A. R., Berg G., Barnes D. L., Eisele R. I., Tanner D. M., Vallely J. M., Lassiter D. A. 2012, Fuel cell technology in underground mining. 5th SAIMM International Platinum Conference. Sun City, South Africa, 17–21 September, pp. 533–545.
17. Trukhnov L. I., A. Naskovets A. M. 2016, Dump trucks of the BelAZ-7558 series with a carrying capacity of 90 tons with an electromechanical transmission of alternate current. Gornaya promyshlennost’ [Mining industry], no. 2 (126), pp. 14–17. (In Russ.)
18. Zhang R., Meng K. 2017, Driving Force Coordinated Control of Separated Axle Hybrid Electric Dump Truck. SAE Technical Paper. https://doi.org/10.4271/2017-01-2462
19. Tarasov P. I., Zhuravlev A. G., Isakov M. V. 2008, Issues of creation and prospects for the use of mining dump trucks with a combined power plant. Gornaya promyshlennost’ [Mining industry], no. 3, pp. 68–75. (In Russ.)