煤矿综掘工作面不同压抽比条件下粉尘分布规律研究

Study on Dust Movement Rules in Fully Mechanized Caving Face of Coal Mine

以某煤矿0907工作面为研究背景,结合实际巷道粉尘分布情况,对不同压抽比的粉尘分布进行数值模拟,模拟的压抽比为0.5、0.7、0.9、1.1、1.3。结果表明:压抽比为1.1时,粉尘浓度已降低到较低水平并趋于稳定,证明压抽比为1.1为最佳压抽比。

Taking the 0907 working face in a mine as the research background,the dust distribution of different compression ratio is simulated with the actual distribution of roadway dust.The compression ratio is 0.5,0.7,0.9,1.1,1.3.The results show that when the compression ratio is 1.1,the dust concentration has been reduced to a lower level and tends to be stable.It is proved that the compression ratio of 1.1 is the optimum compression ratio.