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COMPREHENSIVE UTILIZATION OF RAW MATERIALS
Название Ventilation of blind roadways in coal mines: problems and solutions
DOI 10.17580/em.2015.02.07
Автор Kaledina N. O., Kobylkin S. S.
Информация об авторе

Mining Inctitute of National University of Science and Technology — MISIS:

N. O. Kaledina, Mining Engineer, Doctor of Engineering Sciences, Professor, Deputy Head of Department of Mine Aerology, Safety and Rescue, nok52@mail.ru


College of Mining, National University of Science and Technology — MISIS:

S. S. Kobylkin, Mining Engineer, Candidate of Engineering Sciences, Doctoral Student, Assistant Professor of the Department of Mine Aerology, Safety and Rescue, College of Mining, sergey@kobylkin.ru

Реферат

High performance production faces should be provided and high speed of penetration of preparatory workings. In the conditions of gassy coal mines high penetration rate leads to increased emission of methane and the formation of explosive coal dust, which increases the risk of explosions. Thus according to current design standards in Russia in gassy mines only recommended blowing method of ventilation in blind workings. But currently the cost of air supplied to the blind workings, are very large, and the velocity distribution of air flow in the cross-section is very uneven, which may facilitate the formation of local accumulations of gas. High speed of air movement leads to the growth of its dust. When the suction ventilation method, stagnation zones occur in the work area of the cutting body of the cutter-loaders, that does not allow intensively to remove the methane and dust from the face. The advantage of the suction method is that working along the entire length is ventilated with clean air. The combined ventilation method is difficult to control and almost never used in Russian coal mines. Thus, none of these methods provides reliable ventilation stub generation. To select the optimal method and mode of ventilation of mine workings in their conduct of the Department “Aerology, process safety and mine rescue” of the Mining Institute NUST “MISIS” designed threedimensional model of the movement of air in the workings that are proposed to use for designing ventilation systems. Based on the modeling you can to determine the optimum method of ventilation and the ventilation mode for ensuring safety during high speed driving mine workings in accordance with specified conditions of mining operations.

The study was carried out with financial support from the federal budget for scientific research (fundamental research, applied research and experimental developments) No. 36 in the framework of the government task No. 2014/113 in the field of science.

Ключевые слова Ventilation, blind roadway, coal mine, methane, dust
Библиографический список

1. Available at: http://www.consultant.ru/document/cons_doc_ LAW_157929/ (in Russian)

2. Rukovodstvo po proektirovaniyu ventilyatsii ugolnykh shakht (Coal mine ventilation design guidelines). Moscow : Nedra, 1975. 238 p. (in Russian)

3. Taylor C. D., Chilton J. E., Martikainen A. L. Use of infrared sensors for monitoring methane in underground mines. 12th U. S. North American Mine Ventilation Symposium 2008. Wallace (ed). ISBN 978-0-615-20009-5. pp. 307-312

4. A. A. Skochinskiy, V. B. Komarov. Rudnichnaya ventilyatsiya (Mine ventilation). Moscow: Ugletekhizdat, 1959. 632 p.

5. Howard L. Hartman Mine Ventilation and conditioning. Edition 3. Florida: Krieger publishing company Malabar, 2012. 752 p.

6. L.Yu. Levin, A.G. Isaevich, M.A. Semin, R.R. Gazizullin. Issledovanie dinamiki pylevozdushnoy smesi pri provetrivanii tupikovoy vyrabotki v protsesse raboty kombaynovykh kompleksov (Dynamics of air-dust mixture in ventilation of blind drifts operating a team of cutter-loaders). Gornyi Zhurnal = Mining Journal. 2015. No. 1. pp. 72-75.

7. Kobylkin A. S. Obosnovanie parametrov sistem ventilyatsii gornykh vyrabotok pri ikh prokhodke s ispolzovaniem pulsiruyushchego rezhima provetrivaniya: dissertatsiya na soiskanie uchenoy stepeni kandidata tekhnicheskikh nauk (Substantiation of pulsed ventilation mode parameters for drivage: Dissertation … of Candidate of Engineering Sciences). Moscow : Moscow State Mining University, 2012. 100 p.

8. Du Plessis. J. J. L. Ventilation and Occupational Environmental Engineering in mines. Mine Ventilation Society of South Africa, Johannesburg. 2014. ISBN 978-0-620-61172-5

9. A. A. Myasnikov, S. P. Kazakov. Provetrivanie podgotovitelnykh vyrabotok pri prokhodke kombaynami (Ventilation of development roadways with operation cutter-loaders). Moscow : Nedra, 1981. 269 p.

10. Kaledina N. O., Kobylkin S. S. Sistemnoe proektirovanie ventilyatsii shakht na osnove obemnogo modelirovaniya aerogazodinamicheskikh sistem (System design of mine ventilation based on 3D modeling of aero/gas-dynamic systems). Gornyy informatsionnoanaliticheskiy byulleten = Mining Informational-Analytical Bulletin. 2012. No. OB 1. Trudy mezhdunarodnogo nauchnogo simpoziuma «Nedelya gornyaka – 2012» (Proceedings of International scientific symposium «Miners week – 2012»). pp. 282-294.

11. Kaledina N. O., Kobylkin S. S. Modelirovanie protsessov ventilyatsii shakht dlya obespecheniya metanobezopasnosti gornykh rabot (Modeling ventilation processes in mines with a view to ensure mine methane safety). Gornyi Zhurnal = Mining Journal. 2011. No. 7. 101-103 p.

12. Auld G. Duct efficiency and leaky duct design. Journal of the Mine Ventilation Society of South Africa. January 2007. Vol. 60, Iss. 1. pp. 10-14.

13. Malashkina V. A., Filin A. E. Issledovanie faktorov, vliyayushchikh na gazodinamicheskiy rezhim razrusheniya sloevykh i lokalnykh skopleniy metana v podzemnykh gornykh vyrabotkakh ugolnykh shakht (Analysis of factors influencing gas-dynamic regime of dissolution of layerwise and local methane accumulation in coal mines). Gornyy informatsionno-analiticheskiy byulleten. Spetsialnyy Vypusk «Metan» = Mining Informational-Analytical Bulletin. Special issue «Methane». 2005.

Language of full-text английский
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