反向封堵回风立眼优化通风系统新工艺应用  

Application of New Technology of Reverse Sealing Return Air Outlet to Optimize Ventilation System

作　　者：栗达[1] 

机构地区：[1]大同煤矿集团公司忻州窑煤矿,山西大同037021

出　　处：《山西焦煤科技》2015年第9期18-19,共2页Shanxi Coking Coal Science & Technology

摘　　要：针对忻州窑矿9^#煤层与11^#煤层的层间回风立眼因冲击矿压造成巷道炸帮严重,无法从上部封堵的问题,提出了反向封堵的方案。研究表明：反向封堵在9^#煤层与11^#煤层的层间回风立眼的下方施工反向钻孔,由下向上对回风立眼灌注粉煤灰,封堵9^#~11^#层回风立眼,解决了周期来压期间冲击危险性对通风巷道的影响。同时结合本煤层自然发火期为3~6个月,反向封堵可实现通风系统的快速封闭优化,有效防止了煤层自然发火,优化了该矿305盘区通风系统。The return air outlet between 9^#and 11^#coal seam can＇t be sealed from the top,because rock burst leads to seriousness explosion of roadway two sides. The scheme of reverse sealing is put forward. The research shows that the reverse drilling is performed at the bottom of the return air outlet between 9^#and 11^#coal seam,and the fly ash is poured into the return air outlet from bottom to top to seal the return air outlet. The influence of rock burst to ventilation roadway during the period of periodic pressure is solved. At the same time,combines with the spontaneous combustion period for 3 ~ 6 months,reverse sealing technology can optimize the fast sealing of ventilation system,effectively prevents the spontaneous combustion of coal seam and optimizes the 305 panel ventilation system.

关 键 词：反向封堵 回风立眼 自燃煤层 通风系统 

分 类 号：TD72[矿业工程—矿井通风与安全]