DBPapers
DOI: 10.5593/sgem2012/s03.v1035

MINING OF FACE WITH INCREASED METHANE CONCENTRATIONS IN MINES OF THE JOINT - STOCK COMPANY OKD, A.S. IN THE CZECH REPUBLIC

V. HUDECEK, P. ZAPLETAL, P URBAN, V. KOSNOVSKY
Wednesday 1 August 2012 by Libadmin2012

References: 12th International Multidisciplinary Scientific GeoConference, www.sgem.org, SGEM2012 Conference Proceedings/ ISSN 1314-2704, June 17-23, 2012, Vol. 1, 667 - 674 pp

ABSTRACT

The contribution deals with the satisfaction of safety conditions by reducing the high
quantity of emitted methane using the degasification methods during the mining of
coking coal at faces in the Paskov Mine in the Czech Republic.
Methane-air mixtures represent a serious problem in coal mining. The problem consists
in a risk of high concentrations of methane emitted from coal being disintegrated; the
concentrations may exceed the permissible level. Thus, an explosive atmosphere may be
produced as well. This safety risk leads to both increased costs of mining and losses of
time in the mining process.
The article informs about an engineering solution for the use of degasification method at
selected longwall face with a high gas emission rate in the Paskov Mine, OKD, a.s.

Keywords: coking coal, longwall face, methane, degasification, degasification
boreholes.