Improving methane eztraction ratio in highly gassy coal seam group by increasing longwall panel width
Coal mine methane (CMM) extraction is widely practiced in Chinese coal mines as a strategy to enhance coal mine safety and diversify energy resources. One of the main issues with current CMM extraction technologies is low methane extraction ratios. This is particularly the case in mining highly gassy coal seam group. To address the issue, this paper introduces a practical approach to improve the methane extraction ratio by increasing longwall (LW) panel width. The results of a field trial in Yangquan show that the methane extraction ratio increases by 45 % and coal production rate increases by 30 % with an increased LW panel width.
coal mine methane highly gassy multi coal seams methane eztraction ratio overlying roadway
Q.D. Qu J.L. Xu S. Xue
State key laboratory of coal resource and mine safety, CUMT, Xuzhou China CSIRO Exploration & Mining State key laboratory of coal resource and mine safety, CUMT, Xuzhou China CSIRO Exploration & Mining, PO Box 883, Kenmore, QLD, 4069, Australia
国际会议
The 6th International Conference on Mining Science & Technology ICMST 2009(第六届国际矿业科学技术大会)
徐州
英文
1-6
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）