浅埋深易自燃煤层工作面低氧高一氧化碳防治技术  被引量:12

Prevention and control of low oxygen and high carbon monoxide in shallow buried depth easy spontaneous combustion coal seam working face

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作  者:刘立仁 LIU Liren(Sandcwgou Coal Mine of CHN Energy Guoshen Group,Yulin 719407,China)

机构地区:[1]国家能源集团国神三道沟煤矿,陕西榆林719407

出  处:《煤矿安全》2021年第3期106-111,共6页Safety in Coal Mines

摘  要:针对浅埋深易自燃煤层开采工作面上隅角经常出现低氧高一氧化碳现象,详细分析了三道沟煤矿综采工作面上隅角出现低氧高一氧化碳现象的原因,并通过采取自然发火预测预报、工作面通风系统调整、降低矿井通风阻力、降低主要通风机工作风压、加强井上下堵漏、减少采空区遗煤、加快工作面推进速度、加强采空区密闭管理以及采空区注氮等措施,有效地解决了综采工作面回采期间上隅角出现低氧高一氧化碳现象,保证了工作面安全回采。Low oxygen and high carbon monoxide often appears in the upper corner of the surface of shallow buried coal seam mining. This paper analyzes in detail the reasons for the phenomenon of low oxygen and high carbon monoxide in the upper corner of the comprehensive mining surface of Sandaogou Coal Mine. By adopting measures such as forecasting of spontaneous combustion, adjusting the ventilation system of the working surface, reducing the ventilation resistance of the mine, reducing the air pressure of the main ventilators, strengthening the plugging up and down the well, reducing coal retention in the empty mining area, accelerating the speed of the working surface, and strengthening the sealing management of the empty mining area and nitrogen injection in the empty mining area, it effectively solves the phenomenon of low oxygen and high carbon monoxide in the upper corner during the recovery of the comprehensive mining face, and ensures the safe recovery of the working face.

关 键 词:自燃 上隅角 低氧高一氧化碳 采空区 负压 

分 类 号:TD752.2[矿业工程—矿井通风与安全]

 

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