摘要
为了降低5424Z工作面的粉尘浓度,提出了对5424Z工作面进行煤层静压注水的方法,利用水分充分湿润煤体,达到降尘、防瓦斯的效果。结果表明:对煤层进行2次静压注水试验后,工作面的降尘率分别为64.25%、60.04%,轨道巷的降尘率分别为17.71%、29.79%,瓦斯浓度平均下降68%、65%,工作面瓦斯释放均匀,注水效果显著。
In order to reduce the dust concentration in 5424 Z working face, a method of hydrostatic injection of coal seam for 5424 Z working face is proposed, that is using moisture to wet the coal to achieve the effect of dust fall and gas control. The results show that： after two hydrostatic injection tests on the coal seam, the dust fall rate of the working face is 64.25% and 60.04% respectively, and the dust fall rate of the track way is 17.71% and 29.79% respectively. The average gas concentration is 68% and 65%; the gas release in working face is even, and the water injection effect is remarkable.
出处
《煤矿安全》
北大核心
2017年第10期136-138,共3页
Safety in Coal Mines
基金
国家自然科学基金资助项目(51504077
51404086)
河北省自然科学基金资助项目(E2016209056)
河北省科技计划基金资助项目(15274112)
关键词
综采工作面
煤层注水
参数优化
降尘
抑制瓦斯
fully mechanized coal mining face
coal seam water injection
parameter optimization
dust fall
control gas
