浅埋多煤层开采工作面回风隅角低氧致因及防控技术研究  

Research on the causes and prevention technology of low oxygen in return air corners of shallow-buried multi-coal seam mining faces

作　　者：姚志强 YAO Zhiqiang(Dongpo Coal Industry Co.,Ltd.,Shuozhou 036000,China)

机构地区：[1]山西中煤东坡煤业有限公司,山西朔州036000

出　　处：《技术与市场》2025年第4期113-118,共6页Technology and Market

摘　　要：为明确浅埋多煤层开采工作面回风隅角低氧致因,并为采取针对性防控措施提供科学依据,通过深入分析单因素和多因素耦合致因结果,并在此基础上实践了井上下堵漏隔氧、采空区阻化抑氧和局部通风增氧的综合防控技术措施。结果表明,工作面回风隅角低氧是由煤层赋存环境、工作面注氮、采空区遗煤氧化、工作面负压通风等诸多因素耦合作用下形成的,采取综合的防控技术措施后可取得良好的治理效果。研究思路和结论可为类似工作面的回风隅角低氧防控问题提供参考。In order to clarify the causes of low oxygen in the return air corner of shallow buried multi-coal seam mining faces,and provide a scientific basis for targeted prevention measures.Through the in-depth analysis of the coupling causes of single factor and multiple factors,and on this basis,comprehensive prevention and control technical measures such as leakage plugging for oxygen isolation above and below the well,goaf obstruction for oxygen suppression,and local ventilation and oxygen enhancement were practiced.The results show that the low oxygen in the return air corner of the working face is formed by the coupling effect of many factors such as the coal seam occurrence environment,nitrogen injection in the working face,oxidation of residual coal in the goaf,and negative pressure ventilation of the working face.After taking comprehensive prevention and control technical measures,good governance results have been achieved.The research ideas and conclusions provide a reference for the prevention and control of hypoxia in the return air corner of similar working faces.

关 键 词：回风隅角 低氧 漏风 浅埋多煤层工作面 

分 类 号：TD724[矿业工程—矿井通风与安全]