基于有源风网的瓦斯突出3D矿井灾变通风仿真

发布时间：2019-05-20 00:37

【摘要】：为研究煤与瓦斯突出后整个矿井发生的灾变过程,基于有源通风网络理论和数值仿真技术,利用TF1M3D矿井灾变通风仿真系统软件,对2004年郑煤集团大平煤矿"10·20"煤与瓦斯突出事故进行仿真推演。模拟得到,突出高峰期,以突出点为中心,东翼区域发生大规模逆流,逆流瓦斯渗透通过11轨道石门中的风门进入西大巷;在突出衰退后,逆流消失,进入西大巷的瓦斯随进风流进入13,15采区;同样因风门的限流,11轨道石门中出现瓦斯滞留,当架线电机车经过交汇点时引发瓦斯爆炸。推演结果与实际情况相吻合。研究表明,瓦斯突出灾变时期,防止瓦斯滞留是预防二次爆炸事故的关键;积极推广使用远程控制的自动风门,用它进行调控,能最大限度降低灾害损失。
[Abstract]:In order to study the catastrophic process of the whole mine after coal and gas outburst, based on the theory of active ventilation network and numerical simulation technology, TF1M3D mine catastrophic ventilation simulation system software is used. The "10 路20" coal and gas outburst accident in Daping Coal Mine of Zheng Coal Group in 2004 is simulated and deduced. The simulation results show that the peak period of outburst is centered on the outburst point, and a large scale countercurrent occurs in the east wing region, and the countercurrent gas permeates into the west roadway through the wind gate in the stone gate of track 11. After the outburst recession, the countercurrent disappears, and the gas entering the west roadway enters the 13, 15 mining area with the inlet air flow. Because of the flow restriction of the air gate, the gas is stranded in the stone gate of track 11, which causes the gas explosion when the electric locomotive passes through the intersection point. The deduced results are in good agreement with the actual situation. The research shows that preventing gas retention is the key to prevent secondary explosion accident in the period of gas outburst disaster, and actively popularizing the use of remote control automatic air gate and using it to control it can reduce disaster loss to the greatest extent.
【作者单位】：辽宁工程技术大学安全科学与工程学院;矿山热动力灾害与防治教育部重点实验室;
【基金】：国家自然科学基金资助(51174109)
【分类号】：TD713;TD724

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