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POWER SYSTEM MANAGEMENT, AUTOMATION
ArticleName Alternative source of energy in operation of power-driven machines in coal mines
DOI 10.17580/gzh.2015.11.15
ArticleAuthor Prokopenko S. A., Ludzish V. S., Kurzina I. A., Sushko A. V.
ArticleAuthorData

National Research Tomsk Polytechnic University, Tomsk, Russia

S. A. Prokopenko, Professor, Doctor of Engineering Sciences, e-mail: sibgp@mail.ru

A. V. Sushko, Postgraduate Student

 

VostNII Scientific Center, Kemerovo, Russia
V. S. Ludzish, Deputy Director, Professor, Doctor of Engineering Sciences

 

National Research Tomsk State University, Tomsk, Russia
I. A. Kurzina, Head of a Laboratory, Doctor of Physical and Mathematical Sciences

Abstract

In underground mining of horizontal and gently dipping coal beds with longwall method in the direction along the strike using power-driven machines (makes 90% of total coal mining in Russia), the strata control involves roof caving behind the support units as they advance. The application of this mining system results in displacement of large volumes of rocks in the Earth’s interior. It has been found that rock caving in a closed space has a small time gap: roof is stable for a short duration, then weak rocks of the weakest bottom layer of the roof fall and, later on, large blocks of the upper roof collapse. This temporary hanging and slow caving of roof rocks offers a possibility to convert kinetic energy of caved rocks in electric energy. Electric energy generation method consists in cyclic effect of gravity force of caved roof rocks on mobile units of powered support. Design of the powered support units includes a spring-loaded moving board attached to the guard on the caving side and connected to an electric generator rotor by a rack bar. As the unit advances after the coal cutter–loader by the value of thickness of coal cut, the board goes up and the follow-up fall of roof rocks affects the board and makes it to go down and transfer rotary moment to the rotor of the electric generator. The generated electric energy goes to an accumulator to be used further. Along with the unit-by-unit generation of electric energy, grouped generation is expected: when extended spans in longwalls are caved, a few support units will simultaneously generate electric energy. Electric energy generated and accumulated by all (150–250) units of powered support can be used for internal mine supply instead of non-conventional energy. The proposed method offers a possibility to utilize a huge energy potential of the process of production-induced transformation of lithosphere.

The manuscript is published as a discussion paper.

keywords Rock, caving, energy, support, energy intake board, electric generator
References

1. Tarazanov I. G. Itogi raboty ugolnoy promyshlennosti Rossii za 2014 god (Results of Russian coal industry operation for 2014). Ugol = Coal. 2015. No. 3. pp. 56–71.
2. Frolov V. P. Sposob polucheniya elektricheskoy energii putem preobrazovaniya energii dvizhushcheysya massy (Method of obtaining of electric energy by transformation of moving mass energy). Patent RF, No. 2184416, IPC7 N02N3/00./. No. 991125380. Applied: June 22, 2000. Published: September 10, 2001. Bulletin No. 11. 10 p.
3. Lyu D. Gravitatsionnaya elektroenergeticheskaya ustanovka (Gravitation electroenergetic plant). Patent RF, No. 2131056, IPC6 F03B9/00, F03G3/00. Applied: May 23, 1997. Published: September 10, 1998. Bulletin No. 8. 10 p.
4. Ilkovskiy K. K., Timofeev D. I. Vzglyad na energetiku budushchego (A view on the future energetics). Gornyi Zhurnal = Mining Journal. 2011. No. 12. pp. 73–74.
5. Volchenko G. N., Fryanov V. N., Seryakov V. M., Mashukov I. V. Ispolzovanie alternativnoy energii v gornom dele (Use of alternative energy in mining). Vestnik Nauchnogo tsentra po bezopasnosti rabot v ugolnoy promyshlennosti = Bulletin of the Science Center of Coal Industry Work Safety. 2013. No. 1.1. pp. 9–15.
6. Kaplunov D. R., Leyzerovich S. G., Tomaev V. K. Energovosproizvodstvo pri podzemnykh zakladochnykh rabotakh (Formation of energy during the underground stowing operations). Gornyi Zhurnal = Mining Journal. 2013. No. 4. pp. 62–66.
7. Prokopenko S. A. Ot podzemnoy dobychi – k ugleenergeticheskim kompleksam (From the underground mining to the coal energy complexes). Gornyi Zhurnal = Mining Journal. 2005. No. 11. pp. 8–10.
8. Kaplunov D. R., Rylnikova M. V. Vozobnovlyaemye istochniki energii kak georesurs v sisteme tekhnogennogo preobrazovaniya nedr (Renewable energy sources as a georesource in the system of technology-induced transformation in the Earth’s interior). Gornyi Zhurnal = Mining Journal. 2015. No. 9.
9. Hopkins S. Geothermal Energy in Iceland. Available at: http://www.greenchipstocks.com/articles/geothermal-energy-in-iceland/740 (accessed: October 11, 2015).
10. United States geothermal energy. Market Report. Glitnir Geothermal Research, September
2007. Available at: http://www.waterfurnace.com/downloads/Glitnir_USGeothermalReport.pdf/ (accessed: October 11, 2015).
11. Alternativnaya energiya: elektrichestvo iz nedr (Alternative energy: electricity from soils). Available at: http://www.3dnews.ru/581382/ (accessed: October 10, 2015). (in Russian)
12. Maritan D., Trevisan A. Compact ground source heat exchangers and solar ground recharger. Proceedings, Thirty-Eighth Workshop on Geothermal Reservoir Engineering Stanford University. Stanford, California, 11–13 February, 2013.
13. Bortoloni M., Bottarelli M. Modeling a novel shallow ground heat exchanger. Excerpt from the Proceedings of the 2012 COMSOL Conference in Milan. 10–12 October, 2012.
14. Chinakal N. A. Metallicheskiy peremeshchayushchiysya shchit dlya razrabotki moshch nykh krutopadayushchikh kamennougolnykh plastov (Metallic removing shield for the development of thick steeply deepening coal-seams). Certificate of Authority USSR, No. 51298, IPC E21D 19/02. Applied: May 13, 1936. Published: January 01, 1937. Bulletin No.5.
15. Zvorygin L. V., Kurlenya M. V. Nikolay Andreevich Chinakal. Gornoe delo — zhizn i sudba (Nikolay A. Chinakal. Mining — life and fate). Novosibirsk : Publishing House of Siberian Branch of Russian Academy of Sciences, 2001. 184 p.
16. Buyalich G. D., Tarasov V. M., Tarasova N. I. Innovatsionnyy podkhod k voprosam montazha i ekspluatatsii sektsii mekhanizirovannoy krepi (Innovation approach to the problems of assembling and exploitation of powered support unit). Vestnik Nauchnogo tsentra po bezopasnosti rabot v ugolnoy promyshlennosti = Bulletin of the Science Center of Coal Industry Work Safety. 2013. No. 1.1. pp. 115–126.
17. Prokopenko S. A. Sektsiya mekhanizirovannoy krepi (Powered support unit). Patent RF, No. 2543245, IPC6 E21D/00. /. No. 2013133023/03. Applied: July 16, 2013. Published: January 27, 2015. Bulletin No. 3.

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