摘要
由于麦捷煤矿开采的煤层厚度增加为5.8 m,为了提高煤层的开采效率,需设计放顶煤开采工作面。根据地质情况对150503放顶煤工作面的布置、综采设备的选型进行分析,并探讨了顶煤的冒落性。实践结果表明:150503工作面在进行放顶煤开采时能保证回收率在90%以上,设计的采放比是合理的。
As the thickness of the coal seam mined in Maijie Coal Mine has increased to 5.8 m,in order to improve the mining efficiency of the coal seam,it is necessary to design the top coal caving mining face.According to the geological conditions,the layout of the 150503 top coal caving face and the type selection of fully mechanized mining equipment are analyzed,and the caving property of top coal is discussed.The practice results show that the recovery rate of top coal caving in the 150503 working face can be guaranteed to be more than 90%,and the designed mining-caving ratio is reasonable.
作者
胡东
Hu Dong(Shanxi Shouyang Luyang Maijie Coal Industry Co.,Ltd.,Shanxi Jinzhong 030600)
出处
《山东煤炭科技》
2022年第3期35-37,共3页
Shandong Coal Science and Technology
关键词
放顶煤
选型
冒落性
设计
top coal caving
type selection
caving property
design
