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针对土城煤矿14111里块采面通风不能解决回采过程中瓦斯超限的问题,提出瓦斯截留抽采技术,阐述其基本原理,并在现场应用中取得成功。结果表明:瓦斯截留抽采技术能够非常有效截流临近层瓦斯向本工作面涌出,避免回采过程中瓦斯超限。作者通过多年工作经验提出以下见解,仅供参考。
Aiming at the problem that the coal face ventilation in 14111 block of Tucheng coal mine can not solve the problem of gas overrun in the process of recovery, the technology of methane gas drainage and extraction is put forward, and its basic principle is expounded, and it is successful in field application. The results show that the technology of methane interception and drainage can effectively shut off the gas near the wall from flowing out to the working face and avoid the gas overrun in the process of recovery. The author puts forward the following opinions through many years of work experience, for reference only.