Ventilation system optimization of Sihe Coal high mining face
ZHU Min-one1, CHEN Changhua-two1, LI Baodong-zi3,4
1. College of Resouroes and Environmental Engineering, Liaoning Technical University, Fuxin 123000, China; 2. Shenyang Design and Research Institute, Sino-coal Engineering Group, Shenyang 110000, China; 3. Shunhua Energy Intitute, Liaoning Shihua University, Sherryang 110000. China
Gas overrun due to increasing mining strength,depth and gas emission in the working face has become a major coal mining safety hazard.By employing similar material experiment and field test on multi-roadway in Sihe Coal high mining face,we put forward a ventilation type of intake air for three times and return air for two times,which can optimize ventilation system and solve the working face gas overrun problem in a certain extent.Multi-roadway layout in high efficiency working face is important in studying gas control technology.We preliminarily establish the framework for gas treatment in working face,which provides a valuable reference basis for gas treatment under the similar conditions.
