Coal mine underground-gas drainage method based on negative-pressure regulation

The invention discloses a coal mine underground-gas drainage method based on negative-pressure regulation. Highly efficient drainage of coal mine underground-gas is achieved through negative-pressureregulation in a gas drainage process. Use of an optimized negative-pressure adjustment scheme can ach...

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Hauptverfasser:	LI MAO, WEI SIXIANG, SUN JUZHENG, GAO JIANCHENG, WANG YINGWEI, KOU JIANXIN, WANG MAN, CHEN ZHAOFAN, WANG YUJIE, HU JINHONG, ZHANG JINJING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ELECTRIC DIGITAL DATA PROCESSING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	The invention discloses a coal mine underground-gas drainage method based on negative-pressure regulation. Highly efficient drainage of coal mine underground-gas is achieved through negative-pressureregulation in a gas drainage process. Use of an optimized negative-pressure adjustment scheme can achieve the following effects: 1, increasing underground-gas drainage concentration and drainage purity; 2, improving drainage efficiency; 3, decreasing borehole CO concentration; and 4, prolonging a drainage borehole service period. 本发明公开了种基于负压调控的煤矿井下瓦斯抽采方法，通过对瓦斯抽采过程中的负压调控实现了煤矿井下瓦斯的高效抽采。采用优化后的负压调整方案可达到如下效果：1、提高了井下瓦斯抽采浓度及抽采纯量；2、提高了抽采效率；3、降低了钻孔CO浓度；4、延长了抽采钻孔服务期限。