首页> 中文期刊> 《工业安全与环保》 >高瓦斯易自燃矿井漏风规律测试分析与研究

高瓦斯易自燃矿井漏风规律测试分析与研究

         

摘要

According to air leakage in the area of goaf and fracted coal pillar increased by the gas drainage in high gassy and spontaneous combustion mine ,taking the mining areas of Jinyi and Jiner in the test mine for instance ,the air leakage law during the mining is researched by the combined detection of the ventilation pressure energy measurement and tracer technique .The study shows that the massive air leakage alleyways are existed between the working face ,neighboring seam , goaf and sealed wall in the test mine ,the speed of air leakage is fast between 6 .53 m/min to 12 .26 m/min and the air leakage is serious .The comprehensive control methods proposed from the point of controlling the air leakage involve :knowing about the air leakage laws ,controlling the air leakage alleyways ,enhancing the survey of spontaneous combustion and preventing the spontaneous combustion accidents .On the basis of the results of the air leakage laws measurement ,the measures of hanging the curtains ,spraying the plugging materials and backfilling by fly ash or hydraulic filling should be applied in the main air leakage alleyways ,which can ensure the safety of mining .%针对高瓦斯易自燃矿井瓦斯抽采引起采空区和破裂煤柱区域漏风增大的问题,以试验矿井金一、金二采区为例,运用通风压能测定与示踪技术相结合的联合检测,研究了矿井开采过程中的漏风规律。研究表明,在瓦斯抽采作用下试验矿井的工作面、邻近层、采空区以及密闭之间存在大量的漏风通道,漏风风速较大,达到6.53~12.26 m/min ,漏风问题比较严重。从控制漏风角度提出综合治理方法可以掌握漏风规律,严控漏风通道,加强自燃监测,预防自燃事故。根据漏风规律测试结果,在主要漏风通道处,应用增挂帘布、喷涂堵漏材料、飞灰充填或水砂充填等措施堵漏控制漏风,保证了矿井的安全生产。

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