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[1]李雨成,刘天奇,李智,等.爆破掘进空间内粉尘非稳态运移规律研究[J].中国安全生产科学技术,2014,10(6):33-38.[doi:10.11731/j.issn.1673-193x.2014.06.005]
　LI Yu cheng,LIU Tian qi,LI Zhi,et al.Research on unsteady migration law of dust in blasting tunnelling space[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(6):33-38.[doi:10.11731/j.issn.1673-193x.2014.06.005]
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爆破掘进空间内粉尘非稳态运移规律研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
10
期数:
2014年6期
页码:
33-38
栏目:
学术论著
出版日期:
2014-06-30

文章信息/Info

Title:
Research on unsteady migration law of dust in blasting tunnelling space
文章编号:
20140605
作者:
李雨成1; 2; 刘天奇1; 李智1; 赵勉1
（1 辽宁工程技术大学 安全科学与工程学院，辽宁 阜新 123000; 2 矿山热动力灾害与防治教育部重点实验室，辽宁 阜新 123000）
Author(s):
LI Yucheng1; 2; LIU Tianqi1; LI Zhi1; ZHAO Mian1
（1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China； 2. Key Laboratory of Mine Thermal Hazard and Control of Education Ministry, Fuxin Liaoning 123000, China）
关键词:
爆破掘进; 粉尘; 运移规律; 非稳态
Keywords:
blasting tunnelling;  dust;  migration law;  unsteady
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2014.06.005
文献标志码:
A
摘要:
为促进井下粉尘防治工作，对爆破掘进面粉尘非稳态运移规律进行研究。基于控制方程与RNG k-ε湍流模型，选择欧拉-拉格朗日法进行模拟。构建1100工作面三维几何模型并划分网格，确定气相流场边界条件。引入粉尘运动模型进行非稳态计算，利用CFD软件得到气相流场风速分布规律，得出掘进面60m范围内粉尘沿巷道纵向、垂向扩散规律及巷道沿程粉尘粒径分布规律与空间分布规律。此外，还得到爆破后50min内巷道沿程粉尘浓度随时间变化规律。
Abstract:
To promote dust control in underground mine, the unsteady migration laws of dust on blasting excavation face were studied. Based on the basic controlling equations, the RNG k-ε turbulence model was established, and the EulerLagrangian method was chosen for simulation. 3D geometric models of 1100 working face was built and meshed, at the same time, the boundary condition of gas flow field were determined. The motion model of dust was established for unsteady calculation, and the wind speed distribution of gas flow field was obtained by CFD software. The dispersion law, particle size distribution law, spatial distribution law of dust on the heading face within the range of 60 m were obtained. In addition, the change regulation of dust concentration along the roadway within 50 min after blasting was obtained.

参考文献/References:

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备注/Memo

备注/Memo:
国家自然科学基金项目（51204089）
更新日期/Last Update: 2014-07-28