连续采煤机工作面硬质包裹体分布的模拟研究

Simulation and Study of Hard Parcel Distribution on Continuous Miner Coalface

短壁工作面上硬质包裹体的分布直接影响连续采煤机的截割阻力、机器振动、工作噪音和截割的经济效益。文章在假定包裹体的几何形状为旋转椭球体的情况下,对长轴尺寸服从均匀分布、正态分布、指数分布、威布尔分布、伽玛分布和贝塔分布下的硬质包裹体在煤层中的分布进行了计算机模拟,并分析了各种情况的特征,为了解连续采煤机工作面硬质包裹体的分布、研究其截割过程和机器的工作性能创造了条件。

A distribution of hard parcel on a short wall coal face effects directly cutting resistance, mechanical vibration, working noise and cutting economic results of a continuous miner. By assuming shapes of all hard parcel to be rotating ellipses, the distribution of hard parcel in coal seam is simulated under two long axles obey distributions of even, normal,index,Weibull, Gamma and Bata in the paper, each performance are analyzed,which lay a fundament for finding out distribution of hard parcels on continuous miner faces, researching cutting process and working performance of the machine.