预掘双回撤通道工艺在枣泉煤矿大采高综采工作面的应用

Pre-driven Double Retracement Channel Technology in Zaoquan Coal Mine Large Mining Height Fully Mechanized Coal Mining Face

神宁煤业集团枣泉煤矿11采区110201大采高综采工作面,采用综掘机预掘双回撤通道工艺技术,代替传统的采煤机截割单回撤通道工艺技术,不仅减少了回撤通道施工工期,增加了回撤通道支护的强度、稳定性和可靠性,而且工人劳动强度明显降低,大大减少了施工安全压力,也缩短了工作面的回撤时间,并且减轻了工作面防灭火的压力,取得了较好安全、经济和社会效益。

Shenhua Ningxia coal industry group of Zaoquan coal mine 11 coal mining area of 110201 large mining height fully mechanized coal mining face with fully meehanized excavation machine pre-driven double retraeement channel technology instead of the traditional coal mining machine eutting single retracement channel technology, not only reduced the retraeement channel construction time limit for a projeet, inerease the retraeement channel supporting strength, stability and reliability, and the labor intensity of workers is reduced, greatly reducing the eonstruetion safety pressure, but also shorten the working face withdraw time, and reduces the working face fire pressure, obtained better security, economic and social benefits.