1.School of Safety Science and Engineering, Liaoning Technical University, Fuxin , China; 2.Pu County Baozigou Coal Industry Company Limited, Shanxi Coal Industry Imported and Export Group, Linfen , China; 3.MOE Key Lab of Mine Thermal Dynamics Disasters and Control, Liaoning Technical University, Huludao , China

为掌握风筒出口位置对综掘工作面硫化氢浓度分布的影响，基于湍流k-ε方程、动力弥散方程，构建了硫化氢运移扩散的数学模型，应用COMSOL Multiphysics软件对不同风筒位置条件下综掘面硫化氢的分布规律进行了模拟。结果表明：风筒距离工作面3 m，时工作面附近涡流区域硫化氢浓度最低，回风侧下隅角处硫化氢扩散范围最小。并基于最佳风筒位置对豹子沟矿10102综掘工作面的外喷雾布置进行了优化，实践表明：风筒距离工作面为3 m时硫化氢浓度较原有位置降低了约6.3%，在经过喷雾装置优化后，对硫化氢的净化效率提高了6.2%，综合治理效率达到了95.6%，更有利于硫化氢的稀释及集中净化。

In order to well know the outlet location of the air duct affected to the concentration distribution of the hydrogen sulfide in the fully mechanized driving face, based on the turbulent flow k-ε equation and the dynamic dispersion equation, a mathematical model of the hydrogen sulfide migration and diffusion was established. The COMSOL Multiphysics software was applie to the simulation on the distribution law of the hydrogen sulfide in the fully-mechanized driving face under different location of the air duct. The results showed that when the air duct had a distance of 3 m to the driving face, the hydrogen sulfide concentration in the turbulent flow area closed to the driving face was minimum and at the low corner below the air returning side, the hydrogen sulfide diffusion scope was minimum. Based on the optimized location of the air duct, an optimization was conducted on the layout of the external spray in No.10102 fully-mechanized driving face of Baozigou Mine. The practices showed that when the distance of the air duct to the driving face was 3 m, the hydrogen sulfide concentration reduced by 6.3% in comparison with the previous location. After the spray device optimized, the purification efficiency of the hydrogen sulfide further improved by 6.2% and the comprehensive control efficiency reached to 95.6% and could be favorable to the hydrogen sulfide dilution and centralized purification.