中国煤炭
中國煤炭
중국매탄
CHINA COAL
2014年
3期
106-110
,共5页
瓦斯超限%回风巷裂隙带%顶板插管%瓦斯治理
瓦斯超限%迴風巷裂隙帶%頂闆插管%瓦斯治理
와사초한%회풍항렬극대%정판삽관%와사치리
gas overrun%fault zone return airway%inserting pipes on roof%gas control
针对余吾煤业屯留矿 N2202综放工作面上隅角瓦斯经常超限的情况,分析了工作面上隅角瓦斯超限的原因,提出了回风巷裂隙带钻孔高效抽采、回风巷顶板插管等措施解决上隅角瓦斯超限问题。措施实施后效果明显,上隅角瓦斯超限次数大大减少,统计600次数据中,预警次数由297次直接下降到50次,产量大幅增加,工作面最高产量达到27900 t/d,实现了工作面的安全高产高效开采。
針對餘吾煤業屯留礦 N2202綜放工作麵上隅角瓦斯經常超限的情況,分析瞭工作麵上隅角瓦斯超限的原因,提齣瞭迴風巷裂隙帶鑽孔高效抽採、迴風巷頂闆插管等措施解決上隅角瓦斯超限問題。措施實施後效果明顯,上隅角瓦斯超限次數大大減少,統計600次數據中,預警次數由297次直接下降到50次,產量大幅增加,工作麵最高產量達到27900 t/d,實現瞭工作麵的安全高產高效開採。
침대여오매업둔류광 N2202종방공작면상우각와사경상초한적정황,분석료공작면상우각와사초한적원인,제출료회풍항렬극대찬공고효추채、회풍항정판삽관등조시해결상우각와사초한문제。조시실시후효과명현,상우각와사초한차수대대감소,통계600차수거중,예경차수유297차직접하강도50차,산량대폭증가,공작면최고산량체도27900 t/d,실현료공작면적안전고산고효개채。
Aimed at the frequent gas overrun in the upper corner of N2202 fully mechanized working face in Tunliu Coal Mine of Yuwu Coal Industry Company,the reasons were analyzed and the measures were proposed,including high efficient gas drainage via boreholes in fissure zone of return airway,and inserting pipes on roof in return airway.The results showed that the gas overrun was dramatically reduced.In 600 statistical data,the numbers of early warning deG creased from 297 to 50.Moreover,the coal output was greatly enhanced with the maximum outG put up to 27900 t/d at the working face,achieving the safe and high efficient mining at working face.
