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Methane Explosions and Causes of Their Origin in Highly Productive Sections of Coal Mines

Methane Explosions and Causes of Their Origin in Highly Productive Sections of Coal Mines The analysis is presented for explosion examination materials in mining gently dipping and inclined coal seams with mechanized equipment. It is shown that the most probable cause of explosion origin is methane-and-air mixture inflammation and subsequent blasts initiated by coal self-ignition foci in the mined-out space. In this case, burning gas is brought to stoping face and adjacent mine workings by blast wave, which causes explosions of coal dust. The mechanism of coal self-ignition in the edge parts of pillars between longwalls being under effect of rock pressure is described. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Mining Science Springer Journals

Methane Explosions and Causes of Their Origin in Highly Productive Sections of Coal Mines

Kurlenya, M.; Skritsky, V.
Journal of Mining Science , Volume 53 (5) – Jun 4, 2018
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Publisher
Springer Journals
Copyright
Copyright © 2017 by Pleiades Publishing, Ltd.
Subject
Earth Sciences; Geotechnical Engineering & Applied Earth Sciences; Geophysics/Geodesy; Earth Sciences, general; Mineral Resources
ISSN
1062-7391
eISSN
1573-8736
DOI
10.1134/S1062739117052886
Publisher site
See Article on Publisher Site

Abstract

The analysis is presented for explosion examination materials in mining gently dipping and inclined coal seams with mechanized equipment. It is shown that the most probable cause of explosion origin is methane-and-air mixture inflammation and subsequent blasts initiated by coal self-ignition foci in the mined-out space. In this case, burning gas is brought to stoping face and adjacent mine workings by blast wave, which causes explosions of coal dust. The mechanism of coal self-ignition in the edge parts of pillars between longwalls being under effect of rock pressure is described.

Journal

Journal of Mining Science – Springer Journals

Published: Jun 4, 2018

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