| 综掘巷道粉尘体积分数分布的现场实测与数值模拟 |
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| 引用本文： | 王辉,蒋仲安,杜翠凤,何宗礼,胡国勇.综掘巷道粉尘体积分数分布的现场实测与数值模拟[J].辽宁工程技术大学学报(自然科学版),2011,30(3):345-348. |
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| 作者姓名： | 王辉 蒋仲安 杜翠凤 何宗礼 胡国勇 |
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| 作者单位： | 1. 北京科技大学土木与环境工程学院,北京,100083
2. 平顶山天安煤业股份有限公司 十一矿,平顶山,467000 |
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| 基金项目： | 国家自然科学基金资助项目(50804020) |
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| 摘 要： | 为了掌握粉尘的分布规律,设计安装有效的除尘系统,采用现场实测的方法对粉尘体积分数进行了实际测定,并采用流体力学软件FLUENT,对综掘隧道的粉尘体积分数分布进行了三维空间数值模拟,极好地验证并完善了现场研究结论。结果表明:压入式通风条件下,涡流使得小颗粒粉尘不易沉降,导致高粉尘体积分数主要分布于工作面附近,分布高度位于人的呼吸带,因此考虑采用长压短抽通风方式除尘。
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| 关 键 词： | 综掘工作面 数值模拟 体积分数分布 压入式通风 除尘 |
Field study and numerical research on dust concentration distribution in the excavation tunnel |
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| WANG Hui,JIANG Zhongan,DU Cuifeng,HE Zongli,HU Guoyong.Field study and numerical research on dust concentration distribution in the excavation tunnel[J].Journal of Liaoning Technical University (Natural Science Edition),2011,30(3):345-348. |
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| Authors: | WANG Hui JIANG Zhongan DU Cuifeng HE Zongli HU Guoyong |
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| Institution: | WANG Hui1,JIANG Zhongan1,DU Cuifeng1,HE Zongli2,HU Guoyong2(1.Civil and Environmental Engineering School,USTB,Beijing 100083,China,2.Mine 11 Pingdingshan Tian'an Mining Co.,Ltd,Pingdingshan,467000 China) |
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| Abstract: | To master the law of dust distribution and accordingly remove the dust,this thesis carries out field study and numerical simulation with FLUENT,and concludes distribution regularities of dust.It is shown that vortex in forced ventilation causes small particles of dust to float,therefore leads to high dust concentrations near working face at height of breathing zone.Far-pressing-near-absorption ventilation is recommended to solve the problem. |
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| Keywords: | fully mechanized excavation face numerical simulation dust concentration distribution forced ventilation removing the dust |
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