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| 矿井粉尘扩散系数及其规律 | |
| 引用本文： | 李艳强,杨炯照,周勇. 矿井粉尘扩散系数及其规律[J]. 矿业工程研究, 2012, 27(2): 49-51 |
| 作者姓名： | 李艳强 杨炯照 周勇 |
| 作者单位： | 1. 中国矿业大学北京资源与安全工程学院,北京,100083 2. 河北联合大学轻工学院,河北唐山063000; 3. 义马煤业集团公司孟津煤矿,河南洛阳,471142 |
| 基金项目： | 中央高校基本科研业务专项资助项目 |
| 摘 要： | 在研究影响费克扩散定律各因素的基础上,经过推导,得到了粉尘扩散系数的表达式.分析表达式得到了影响矿井粉尘扩散系数的主要因素,并研究了影响因素对于粉尘扩散系数和粉尘浓度的作用规律.研究结果表明:矿井粉尘扩散系数受温度和粉尘粒径的影响,温度影响较小.粒径越小,扩散系数越大,粉尘扩散越快,粒径小于1μm的粉尘这一趋势更为明显.研究对于矿井采取粉尘防治措施具有一定的参考价值. |
| 关 键 词： | 粉尘 扩散 温度 粒径 |
On dust diffusion coefficient and its law in mine |
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| LI Yanqiang,YANG Jiongzhao,ZHOU Yong. On dust diffusion coefficient and its law in mine[J]. Mineral Engineeering Reseach, 2012, 27(2): 49-51 | |
| Authors: | LI Yanqiang YANG Jiongzhao ZHOU Yong |
| Affiliation: | 1.School of Resource & Safety Engineering,China University of Mining & Technology(Beijing),Beijing 100083,China; 2.College of Light Industry,Hebei United University,Tangshan 063000,China;3.Mengjin Coal Mine,Yima Coal Company Group,Luoyang 471142,China) |
| Abstract: | Based on the each influent factor of Fick diffusion law,through the derivation,the expression formulation of diffusion coefficient is obtained.According to the analysis of formulation,the main influence factor for coal mine dust diffusion coefficient is obtained,and the impact law of influence factor for dust diffusion coefficient and dust concentration is studied.The research results show as follows:the dust diffusion coefficient is influenced by temperature and dust size,and the temperature is relative smaller.The smaller the dust size,the bigger dust diffusion coefficient becomes,the faster the dust diffuses,and the tendency is more obvious for the dust size less than 1μm.The research has referential value for dust preventive treatment of coal mine. |
| Keywords: | dust diffusion temperature dust diameter |
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