Comparative analysis of performance efficiency of domestic and foreign heading machines

Based on the field information on coal mines in Russia in the last decade, dynamics of road heading operations is analyzed, and efficiency of domestic and foreign heading machines is compared. It is found that though the major fleet is represented by domestic heading machines, percentage of roadheaders of foreign production, especially western manufacture is also high. The requirement of thoroughgoing modification in road heading by means of creation of advanced shearing technologies is governed by high concentration of production in mines owing to technical upgrading of longwall mining systems. The key cause of increase in the ratio of gateways to excavations is revealed. The analysis of data on performance efficiency of domestic and foreign heading machines shows that, given the current rate of production, the average monthly face advance with domestic machinery is positively insufficient. As of today, the heading cost saving requires raising the rate of heading to 200–300 m/month, which needs an increase in specific weight of continuous mining in longwalls. According to the statistic analysis, one of the reasons for low efficiency of domestic and foreign heading machines is considerable volume of overcutting and lack of mechanization in installation of roof support. The presented research findings can be used in the analysis of implementation performance of the Energy Strategy of Russia for the period up to 2030.

 

Acknowledgements:
For citation:

Linnik Yu. N., Linnik V. Yu., Baykova O. V., Polyakov A. V. Comparative analysis of performance efficiency of domestic and foreign heading machines. MIAB. Mining Inf. Anal. Bull. 2019;(11):208-215. [In Russ]. DOI: 10.25018/0236-1493-2019-11-0-208-215.

Issue number: 11
Year: 2019
Page number: 208-215
ISBN: 0236-1493
UDK: 622.23.05
DOI: 10.25018/0236-1493-2019-11-0-208-215
Authors: Linnik Yu. N., Linnik V. Yu., Baykova O. V., Polyakov A. V.
About authors:

Yu.N. Linnik1, Dr. Sci. (Eng.), Professor,
V.Yu. Linnik1, Dr. Sci. (Econ.), Assistant Professor,
Professor, e-mail: d0c3n7@gmail.com,
O.V. Baykova1, Cand. Sci. (Econ.), Assistant Professor,
A.V. Polyakov, Dr. Sci. (Eng.), Professor, Tula State University,
300012, Tula, Russia,
Academic Adviser of «Academy of mining Sciences»,
1 State University of Management, 109542, Moscow, Russia.

Keywords: Heading machine, gateway, road heading method, technical level, mine, performance efficiency, heading rate, heading.
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