摘要
针对矿井在工作面推进过程中的矿井局部通风形式的改变,由"U+L型"通风转化为"U+I型"通风,分析了矿井通风形式的改变对瓦斯抽采的影响。本文的研究对两种通风条件下的瓦斯抽采效果进行了现场实测,对矿井工作面瓦斯抽采优化具有重要意义。现场工业性试验监测结果表明,15201综放工作面回风巷采用"U+I型"通风模式后,工作面回风巷风流中瓦斯的含量明显降低,减轻了对巷道通风的有效性,提高了通风的有效性,增加了矿井的安全和经济效益。
In view of the change of local ventilation form in the process of advancing the working face of the mine,the U+L ventilation is transformed into U+I ventilation,and the influence of the change of ventilation form on gas drainage is analyzed.In this paper,the field measurement of the gas drainage effect under the two ventilation conditions is carried out,which is of great significance for the optimization of gas drainage in the working face of the mine.The results of field industrial test and monitoring show that after the U+I ventilation mode is adopted in the return roadway of 15201 fully mechanized top-coal caving face,the gas content in air flow in the return roadway of the working face is obviously reduced,the effectiveness of roadway ventilation is reduced,the effectiveness of ventilation is improved,and also the economic benefit of the mine is increased.
作者
郭洪
GUO Hong(Heshun Xindadi Coal Industry Co.,Ltd.,Yangquan Coal Group,Jinzhong,Shanxi,032700)
出处
《神华科技》
2019年第9期37-39,共3页
Shenhua Science and Technology
关键词
矿井通风
通风类型
瓦斯抽采
抽采优化
Mine ventilation
Ventilation type
Gas drainage
Drainage optimization
