一种粉末颗粒-高注浆压力封堵裂隙的瓦斯抽采钻孔封孔装置及方法
- School Sign:第一单位
- Disigner of the Invention:卢硕,zhaicheng,tangjun,huguozhong,黄梦牵,陈帅,杨真,李菁华
- Type of Patent:国内
- State of Patent:专利授权
- Application Number:201910174682.0
- Number of Inventors:9
- Service Invention or Not:no
- Application Date:2019-03-08
- Authorization Date:2020-09-04
- First Author:Zanglei
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一种烟气驱替增强采空区瓦斯抽采及采空区防治火灾方法
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