Lebedinsky GOK, Gubkin, Russia:

M. V. Rakhmanin, Leading Specialist of Chief Miner Group at Technical Department, rahmanin_m_v@lebgok.ru
V. A. Rasskazov, Head of Production and Analysis Department

Metalloinvest Management Company LLC, Moscow, Russia:
S. S. Malyutin, Head of Production Engineering Analysis Department
M. A. Kladova, Chief Specialist of Production Engineering Analysis Department

Modern business environment calls for high innovation activity of corporate management. The investment management, in its turn, should rest upon the reliable prediction of performance of mining and transportation machines. In terms of Lebedinsky GOK, the authors have assessed key engineering factors and operational parameters of mining and transportation machinery with a view to revealing new approaches to the objective evaluation of the equipment productiveness and its history with regard to aging over the period of operation. It is found how the age of equipment is related with its hourly output and mechanical availability time. The technical solutions are suggested to estimation of annual operational output of extraction-and-loading and transportation machines in case of the long-term prediction and strategic planning of mining and transportation infrastructure. The statistical analysis of key engineering factors and operational parameters of mining and transportation machines is performed in order to fi nd new technical solutions for more objective assessment of the equipment productiveness and its history with regard to aging during the entire lifetime.

1. Abzalov V. M., Gorbachev V. A., Evstyugin S. N. Efficienct of modernization of pelletization machines OK-306 and ways of further improvement of production of iron ore pellets in the JSC «Lebedinsky GOK». Stal. 2003. No. 1. pp. 6–10.
2. Evstyugin S. N., Mayzel G. M., Malyavin B. Ya. Improvement of technology of iron ore pellets production on conveyor pelletization machines. Stal. 2002. No. 4. pp. 2–5.
3. Abzalov V. M., Bragin V. V., Nevolin V. N. et al. Modernization of roasting machines within the commonwealth of independent states. Stal. 2010. No. 9. pp. 7–9.
4. Abzalov V. M., Bragin V. V., Kleyn V. I., Evstyugin S. N., Solodukhin A. A. Thermal systems of conveyer roasting machines. Stal. 2010. No. 9. pp. 10–12.
5. Bokovikov B. A., Bragin V. V., Malkin V. M., Naydich M. I., Solodukhin A. A. Mathematical model of conveyor pelletization machine as an instrument for optimization of thermal scheme of aggregate. Stal. 2010. No. 9. pp. 33–37.
6. Abzalov V. M., Evstyugin S. N., Makarov Yu. G., Maltseva V. E., Sapozhnikova T. V. Some aspects of technology of coating deposition on pellets, intended for the processes of direct iron obtaining. Stal. 2003. No. 9. pp. 15–17.
7. Bokovikov B. A., Bragin V. V., Gruzdev A. I., Naydich M. I., Shvydkiy V. S. Relation between the productivity and fuel consumption in roasting machines. Stal. 2014. No. 8. pp. 38–42.
8. Kozub A. V., Panchenko A. I., Efendiev N. T., Ismagilov A. A., Solodukhin A. A., Gorbachev V. A., Chesnokov Yu. A., Leontev L. I., Burtsev D. L. Improving blast-furnace efficiency by regulating the properties of iron-ore pellets. Stal. 2016. No. 10. pp. 4–8.
9. Abzalov V. M., Evstyugin S. N., Kleyn V. I. Thermal performance of conveyor pelletizing machines. Ekaterinburg : UrO RAN, 2012. 247 p.
10. Abzalov V. M., Gorbachev V. A., Evstyugin S. N., Kleyn V. I., Leontev V. I., Yurev B. P. Physical-chemical and thermal technical basis of production of iron ore pellets. Ekaterinburg : Mezhregionalnyy izdatelskiy tsentr, 2015. 334 p.
11. Mayzel G. M., Bokovikov B. A., Malkin V. M., Abzalov V. M., Kleyn V. I., Evstyugin S. N. Method of management of pellets roasting on conveyor mechine. Patent RF, No. 2229074. Applied: 13.02.2003. Published: 20.05.2004. Bulletin No. 14.
12. Abzalov V. M., Kleyn V. I., Evstyugin S. N., Nevolin V. N., Solodukhin A. A. Method of three-stage drying of pellets on roasting machine. Patent RF, No. 2350664. Applied: 06.09.2007. Published: 27.03.2009. Bulletin No. 9.
13. Midrex. Available at: http://www.midrex.com/process-technologies/the-midrex-process (accessed: 25.03.2017).
14. LLC “NPVP TOREKS”. Available at: http://torex-npvp.ru/index.php (accessed: 25.03.2017).
15. Huang Z., Yi L., Jiang T. Mechanisms of strength decrease in the initial reduction of iron ore oxide pellets. Powder Technology. 2012. Vol. 221. pp. 284–291.
16. Sivrikaya O., Arol A. İ. An investigation of the relationship between compressive strength and dust generation potential of magnetite pellets. International Journal of Mineral Processing. 2013. Vol. 123. pp. 158–164.
17. Hasanbeig A., Price L., Chunxia Z., Aden N., Xiuping L., Fangqin S. Comparison of iron and steel production energy use and energy intensity in China and the U.S. Journal of Cleaner Production. 2014. Vol. 65. pp. 108–119.
18. Haibao Yi, Haitao Yang, Li Ming, Han Bin, Zheng Lujing. Study on Open-Pit Precision Control Blasting of Easily Weathered Rock and its Application. 8^th International Conference on Physical Problems of Rock Destruction. China, 2014. pp. 157–160.