Influence of shearer operation flow chart and longwall length on specific energy consumption of scraper conveyor in fully mechanized working face

The influence exerted by the shearer operation flow chart and the longwall length on the specific energy consumption of a scraper conveyor in the fully mechanized working face in gently dipping coal seams is studied for the energy efficiency evaluation. Power consumed in mining and haulage of coal in fully mechanized longwalls amounts to 12–16% of the total energy consumption in a coal mine. For this reason, it seems important to analyze the influence of process conditions of equipment and parameters of longwall face on the specific energy consumption of a scraper conveyor. The procedure developed for the calculation of the specific energy consumption improves accuracy of capacity and performance of a fully mechanized longwall face with regard to specific features of energy consumption. The article presents a case-study of longwall face in coal seam 19 in Kostromovskaya Mine of MMK-Ugol, at mining height of 2 m. The dependences of the specific energy consumption by AFC on the longwall length and the shearer operation flow chart are determined. It is shown that with increasing length of the longwall from 200 to 500 m, the specific energy consumption of the scarper conveyor grows from 0.64 to 1.4 kW h/t in case of one-way operation of the shearer and from 0.53 to 1.25 kW h/t in case of shuttle operation of the shearer, or decreases from 3.2 to 2.8 kW h/r km and from 2.65 to 2.5 kW h/t km in one-way and shuttle operation of the shearer, respectively. The shuttle operation of the shearer improves the energy efficiency of the scraper conveyor by 11–18% as compared with the one-way flow chart owing to higher load of the conveyor. The share of the specific energy consumption of AFC in the total specific energy consumption of the shearer–conveyor system grows from 25 to 56% with an increase in the length of the longwall from 200 to 500 m.

Keywords: scraper conveyor, specific energy consumption, fully mechanized longwall face, consumed power, shearer, longwall length, shearer operation flow chart.
For citation:

Babokin G. I., Shalloeva V.A. Influence of shearer operation flow chart and longwall length on specific energy consumption of scraper conveyor in fully mechanized working face. MIAB. Mining Inf. Anal. Bull. 2021;(3):167-176. [In Russ]. DOI: 10.25018/0236_ 1493_2021_3_0_167.

Issue number: 4
Year: 2021
Page number: 167-176
ISBN: 0236-1493
UDK: 621.31.83
DOI: 10.25018/0236_1493_2021_4_0_167
Article receipt date: 21.05.2020
Date of review receipt: 02.10.2020
Date of the editorial board′s decision on the article′s publishing: 10.03.2021
About authors:

G.I. Babokin1, Dr. Sci. (Eng.), Professor, e-mail:,
V.A. Shalloeva1, e-mail:,
1 National University of Science and Technology «MISiS», 119049, Moscow, Russia.


For contacts:

G.I. Babokin, e-mail:


1. Zakharova A. G. Zakonomernosti elektropotrebleniya na ugol'nykh shakhtakh Kuzbassa [Regularities of power consumption in Kuzbass coal mines], Kemerovo, Izd-vo KuzGTU, 2002, 198 p.

2. Kibrik I. S. On the issue of improving the operational reliability of the drive of bottom-hole scraper conveyors. Ugol'. 2016, no 8, pp. 96—97. [In Russ].

3. Boikov I. L., Shestakov V. V., Zaklika M., Ulrich N. Experience in implementing frequency converters for driving downhole conveyors of the Vorgashorskaya mine. Glyukauf. 2010, no 1(2), pp. 79—83. [In Russ].

4. Tkachenko A. A., Osichev A. V. Development of models for the study of dynamic processes in electric drives of scraper conveyors. Bulletin of the National Technical University «KhPI». 2013, no 7, pp. 99—103. [In Russ].

5. Acarnley P. P., Watson J. F., Review of position-sensorless operation of brushless permanent-magnet machines. IEEE Transactions on Industrial Electronics. 2012.Vol. 53. No 2. Pp. 352—362.

6. Fedorov G. S., Zhuravlev E. I. Calculation of optimal energy parameters of the cleaning complex in various mining and geological conditions based on the simulation model of the cleaning combine. MIAB. Mining Inf. Anal. Bull. 2016, no 12, pp. 356—361. [In Russ].

7. Sergeev A. V., Kondrakhin V. P., Stadnik N. I. mechatronics in coal engineering. Mining Equipment and Electromechanics. 2007, no 4, pp. 20—29. [In Russ].

8. Babokin G. I. Energy saving in the electric drive of the conveyor. Izvestiya vysshikh uchebnykh zavedeniy. Gornyy zhurnal. 2002, no 1, pp. 122—125. [In Russ].

9. Kubrin S. S., Reshetnyak S. N., Bondarenko A. M. Impact of technology factors on specific power demands of equipment in extraction districts of coal mines. MIAB. Mining Inf. Anal. Bull. 2020, no 2, pp. 161—170. [In Russ]. DOI: 10.25018/0236-1493-2020-2-0-161-170.

10. Ordin A. A., Metelkov A. A. On the issue of optimizing the length to productivity of a complex-mechanized coal mine cleaning face. Fiziko-tekhnicheskiye problemy razrabotki poleznykh iskopayemykh. 2013, no 2, pp. 100—112. [In Russ].

11. Kazachenko G. V., Kislov N. V., Bamsam G. I. Osnovy rascheta zatrat moshchnosti i proizvoditel'nosti ochistnykh i prokhodcheskikh kombaynov [Fundamentals of calculating the power and productivity costs of cleaning and tunneling combines], Minsk, BNGU, 2015, 75 p.

12. Galkin V. I., Sheshko E. E. Transportnye mashiny [Transport machines], Moscow, izd-vo «Gornaya kniga», MGGU, 2010, 588 p.

13. Jonek-Kowalska I., Turek M. Dependence of total production costs on production and infrastructure parameters in the Polish Hard Coal Mining Industry. Energies. 2017. Vol. 10. No 10. Article 1480. DOI:10.3390/en10101480.

14. Stebnev A. V., Zadkov D. A., Gabov V. V., Mukhortikov S. G. Analysis of operation of powered longwall systems in mines of SUEK-Kuzbass. Eurasian Mining. 2017. No 2. Pp. 28— 32. DOI: 10.17580/em.2017.02.07.

15. Brodny J., Alszer S., Krystek M., Tutak M. Availability analysis of selected mining machinery. Archives of Control Sciences. 2017. Vol. 27. No 2. Pp. 197—209.

16. Ning Wang, Zongguo Wen, Mingqi Liu, Jie Guo Constructing an energy efficiency benchmarking system for coal production. Applied Energy. 2016. Vol. 169. Pp. 301—308.

17. Plotnikov V.V. Conclusion of the formula for calculating the productivity of cleaning combines with a shtrekovym, drum or crown Executive body. Ugol'. 2009, no 9, pp. 47—55. [In Russ].

Our partners

Подписка на рассылку

Раз в месяц Вы будете получать информацию о новом номере журнала, новых книгах издательства, а также о конференциях, форумах и других профессиональных мероприятиях.