华胜煤业3105综采工作面通风和瓦斯体积分数分布研究

Study on Ventilation and Gas Volume Fraction Distribution in 3105 Fully Mechanized Mining Face of Huasheng Coal Industry Co.,Ltd.

通过理论推导、计算和数值模拟,对华胜煤业有限公司3105综采工作面通风与瓦斯体积分数分布进行了研究。U型通风条件下,在走向方向,从工作面到采场的深部瓦斯体积分数逐渐增大;在倾向方向,采场瓦斯体积分数分层现象不明显;大部分区域瓦斯体积分数不大,瓦斯体积分数逐渐增大但分层现象并不明显。由此可见,工作面和回风巷瓦斯体积分数较小,满足安全需要。

Through theoretical derivation,calculation and numerical simulation,this paper studied the ventilation and gas volume fraction distribution of 3105 fully mechanized mining face in Huasheng Coal Industry Co.,Ltd..Under the U-ventilation condition,in the strike direction,the gas volume fraction from the working face to the deep of the stope gradually increases;in the trend direction,the gas volume fraction stratification phenomenon is not obvious;in most areas,the gas volume fraction is not large,the gas volume fraction gradually increases,but the stratification phenomenon is not obvious.It can be seen that the gas volume fraction of working face and return air roadway is small,which meets the safety requirements.