综放开采顶煤回收率的相似模拟研究  

Study on top-coal recovery in full-mechanized by similarity simulation

作　　者：张会军[1] 闫少宏[1] 毛德兵[1] 

机构地区：[1]煤炭科学研究总院开采设计研究分院,北京100013

出　　处：《中国矿业》2009年第12期76-78,共3页China Mining Magazine

基　　金：国家科技支撑计划重大专项:大采高综放开采工艺技术研究(项目编号:2008BAB36B01)

摘　　要：影响顶煤回收率有4个主要因素:顶煤厚度、直接顶冒落堆积厚度、冒落矸石堆积角、冒落矸石距后部输送机外缘的间距。本文做了25个正交实验,研究了顶煤回收率与4个主要因素的关系,得出了4个影响因素的主次排序为:间距、顶煤厚度、冒落矸石堆积角、冒落矸石堆积厚度。The four main factors of top-coal recovery are as followed： top-coal thickness,accumulation thickness of immediate roof falling,depositing angle of falling gauge and the distance between falling gauge and out edge of posterior conveyor.then we obtain the important order of the four main factors.The primary factor is the distance between falling gauge and out edge of posterior conveyor.The secondary factor is top-coal thickness.The third and the last factor are the depositing angle of falling gauge and the accumulation thickness of immediate roof falling.

关 键 词：顶煤回收率 相似模拟 顶煤厚度 矸石堆积角度 

分 类 号：TD821[矿业工程—煤矿开采]