|
|
|
| Gas comprehensive control technology in long inclined face |
| Lv Dongnan |
| Jizhong Energy Resources Co., Ltd., Xingtai 054000, China |
|
|
|
|
Abstract In order to control the gas in the top coal caving mining face of coal and gas outburst mine, taking the control measures of Dashucun Mine in recent years as the background, the gas control means of high-level short borehole, medium-high pressure short wall water injection and gas control borehole are adopted. The outburst prevention prediction index △ h2 of the coal roadway excavation interval is stable at about 60 Pa, and the absolute gas emission of the working face during the excavation period is stable at about 1 m3 / min, which eliminates the outburst and gas overrun accidents, and solves the problem of gas control during the local unmining of the protective layer of the large coal working face and the subsequent mining period. This technology provides a reference for the future treatment of gas in the top coal mining face of coal and gas outburst mines.
|
|
|
|
|
|
| 1 ] 吕栋男. 利用抽采技术治理回采工作面采空区瓦斯工艺的研究[ J ]. 煤炭与化工，2023，46（ 7 ）：115 - 117.
[ 2 ] 王龙飞. 综采工作面瓦斯抽采技术优化及效果分析[ J ]. 当代化工研究，2023（ 18 ）：80 - 82.
[ 3 ] 段俊英. 突出煤层回采工作面瓦斯治理技术研究[ J ]. 山西冶金，2023，46（ 8 ）：234 - 236.
[ 4 ] 潘少斐. 综采工作面瓦斯综合治理技术应用[ J ]. 能源技术与管理，2023，48（ 4 ）：36 - 37.
[ 5 ] 孟占波. 综采工作面瓦斯治理技术应用[ J ]. 山西冶金，2022，45（ 4 ）：174 - 175. |
|
|
|
