采矿与安全工程学报2011，Vol.28Issue(3)：472-476,5.
露天采矿机煤层选采厚度研究
Mining Thickness Determination of Coal Seam for Surface Miner
摘要
Abstract
Aiming at the situation of being unique in structural features of the surface miner, we can accurately separate the coal from gangue to decrease the los of coal and decrease the mixing degree of coal and gangue. To reasonably determine the mining thickness of surface miner, we establish a coal loss and gangue mixing model based on the cutting roller track of the miner to figure out the key index and the formula for the determination of thickness and for the calculation of shale content and the calorific value of coal. The results show that, the greater the total thickness of coal seams, the less the parting layer, and the better the selective effect. The mining thickness determination principle is established based on mining thickness determined and on the factors affecting the such determination. The findings of our study of No. 5 coal seam in Shengli surface mine show that, the no. 5 coal seam has numerous parting layer, thin coal seams, so 0. 25 m is determined as the reasonable mining thickness. This study has provided an analytical method and theoretical basis for determination of mining thickness.关键词
露天采矿机/选采/煤层厚度/含矸率Key words
surface miner/ selective mining/ coal seam thickness/ refuse rate分类
矿业与冶金引用本文复制引用
丁立明,才庆祥,王博文,周伟,郝文玉..露天采矿机煤层选采厚度研究[J].采矿与安全工程学报,2011,28(3):472-476,5.基金项目
国家“十一五”国家科技支撑计划项目(2006BAB16B00) （2006BAB16B00）
国家自然科学基金重点项目(51034005) （51034005）
煤炭资源与安全开采国家重点实验室开放研究基金项目(SKLCRSM10X01) （SKLCRSM10X01）
中央高校基本科研业务费专项资金项目(2010QNA33) （2010QNA33）
