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首页> 外文会议>International conference on information computing and applications >Distribution Regularity and Numerical Simulation Study on the Coal Spontaneous Combustion 'three zones' Under the Ventilation Type of Ч + J
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Distribution Regularity and Numerical Simulation Study on the Coal Spontaneous Combustion 'three zones' Under the Ventilation Type of Ч + J

机译：J + J通风方式下煤自燃“三带”分布规律及数值模拟研究。

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Taking Wang Tai Coal Mine2304 working surface as the object of study, the gaseous components along with the advancing working face were examined through burying pipe sampling in the goaf, the change rule of oxygen volume fraction along with the depth of working face was investigated. According to the measure result of gas concentrations, this paper determined the distribution of coal spontaneous combustion oxidation "three zones" in Wang Tai Coal 2304 working face. At the same time, based on the Darcy law, the numerical simulation was performed for the single return air roadway by using the Fluent software, 80m, 160m and 240m away from the working surface respectively. In the three situations, the paper researched the distribution of flow field, the O2 concentration field and the CO concentration field, analyzed the change rule of oxidation zone along with the advancing working face. Wang Tai Coal 2304 working face contain spontaneous combustion "three zones": cooling zone (0~38m), oxidation zone (38m~145m) and suffocation zone (> 145m); the width of oxidation zone along with single return air roadway from the face length approximately linearly increases.
机译：以王台煤矿2304工作面为研究对象，通过在采空区内埋管取样，研究了气态成分与前进工作面的关系，研究了氧气体积分数随工作面深度的变化规律。根据瓦斯浓度的测量结果，确定了王台煤2304工作面煤自燃氧化“三个区”的分布。同时，根据达西定律，分别使用距工作面80m，160m和240m的Fluent软件对单回风巷道进行了数值模拟。在这三种情况下，研究了流场，O2浓度场和CO浓度场的分布，分析了氧化区随工作面的变化规律。王台煤2304工作面包含自燃“三个区”：冷却区（0〜38m），氧化区（38m〜145m）和窒息区（> 145m）;从表面长度开始，氧化区的宽度与单个回风巷道大致成线性增加。

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