不同风速下巷道断面微细粉尘分布模拟试验研究

doi:10.16265/j.cnki.issn1003-3033.2018.03.008

中国安全科学学报 ›› 2018, Vol. 28 ›› Issue (3): 44-49.doi: 10.16265/j.cnki.issn1003-3033.2018.03.008

不同风速下巷道断面微细粉尘分布模拟试验研究

王宝晴¹, 张超^**2 副教授, 刘建¹ 副教授

1 北京科技大学土木与资源工程学院, 北京 100083;
2 华北科技学院安全工程学院, 河北廊坊 065200

收稿日期:2017-11-14 修回日期:2018-01-08 出版日期:2018-03-28
作者简介:王宝晴 (1992—),女,河北衡水人,硕士研究生,研究方向为职业危害与粉尘控制技术。E-mail:15510008157@163.com。
基金资助:
河北省自然科学基金资助(E2016508036);国家自然科学基金资助(U13611172);中央高校科研业务费资助项目(3142014011)。

Simulation experimental study on fine dust distribution over roadway section under different wind speeds

WANG Baoqing¹, ZHANG Chao², LIU Jian¹

1 School of Civil and Resource Engineering, University of Science and Technology Beijing,Beijing100083,China;
2 School of Safety Engineering, North China Institute of Science and Technology,Langfang Hebei 065200,China

Received:2017-11-14 Revised:2018-01-08 Published:2018-03-28

摘要/Abstract

摘要： 为降低微细粉尘危害,实现作业场所内的有效控尘、防尘,在矩形、拱形模拟巷道内采用网格布点法布置测点,调整风机风速法进行试验,并运用Gambit建模、Fluent开展数值模拟分析。结果表明:当尘源以10 mg/s的速率喷尘时,尘粒自由弥散,巷道中轴线处粉尘浓度小于壁面边缘处;当调节风速为1 m/s时,中轴线处与壁面边缘处浓度基本相等;当尘粒自由弥散时巷道壁的黏滞作用对粉尘扩散和分布起主导作用,且风速是影响微细粉尘悬浮状态的主要因素;降低巷道内微细粉尘浓度的方法主要包括合理设计环境风速和提高巷道壁面光滑性,减小壁面对微细粉尘的黏滞作用。

关键词: 巷道断面, 风机风速, 气固两相流, 数值模拟, 微细粉尘分布

Abstract: To reduce harm of fine dust and realize effective control and prevention of dust on the operation site, experiments were carried out in rectangle and arch simulation roadways. The grid point distribution method was adopted to lay out the testing points and the method of adjusting the wind speed was adopted. Besides, a numerical simulation analysis was carried out by virtue of Gambit modeling and Fluent. The result indicates that when the dust source sprays dust at a speed of 10 mg/s, the dust particles disperse freely and the dust concentration on the axis of the roadway is less than that on the edge of the wall surface, when the wind speed is l m/s, the concentration on the axis and that on the edge of the surface are generally the same, when the dust particles disperse freely, the viscous effect of the roadway wall dominates the dispersion and distribution of dust and the wind speed is the main factor affecting the floating status of the fine dust, and that the ways of reducing the concentration of the fine dust in the roadway mainly include reasonable design of wind speed in the environment, improvement of the smoothness of the wall surface of the roadway and reduction of the viscous effect of the wall surface for the fine dust.

Key words: roadway sections, wind speed, two-phrase flow of gas and solid, numerical simulation, fine dust distribution

中图分类号:

X936

王宝晴, 张超, 刘建. 不同风速下巷道断面微细粉尘分布模拟试验研究[J]. 中国安全科学学报, 2018, 28(3): 44-49.

WANG Baoqing, ZHANG Chao, LIU Jian. Simulation experimental study on fine dust distribution over roadway section under different wind speeds[J]. China Safety Science Journal, 2018, 28(3): 44-49.

参考文献

[1] 卢鉴章. 我国煤矿粉尘防治技术的新进展[J]. 煤炭科学技术, 1996, 24(7): 1-5.
LU Jianzhang.New progress of coal dust control technology in China[J]. Coal Science and Technology, 1996, 24(7): 1-5.
[2] 石零,陈红梅,杨成武. 微细粉尘治理技术的研究进展[J]. 江汉大学学报:自然科学版,2013,41(2): 40-46.
SHI Ling, CHEN Hongmei, YANG Chengwu. Research progress in treatment technology of fine dust[J]. Journal of Jianghan University: Natural Science Edition, 2013,41(2): 40-46.
[3] 赵铁锤. 矿井粉尘防治技术[M].北京:煤炭工业出版社,2007: 20-45.
[4] 李艳强,吴超,易斌. 受限空间内粉尘流动的浓度分布模型及其数值模拟[J]. 中国安全科学学报, 2007, 17(10): 50-55.
LI Yanqiang, WU Chao, YI Bin. Mathematical models and numerical simulation of concentration distribution of dust flowing in limited space[J]. China Safety Science Journal, 2007, 17(10): 50-55.
[5] VAN Leer B. CFD education: past, present, future[C]. Proceedings of 37^th AIAA Aerospace Sciences Meeting, 1999: 1-18.
[6] 吴江航.矿井粉尘运动规律的实验研究[D].北京:中国矿业大学(北京),1995.
WU Jianghang. Experimental study on the movement law of mine dust[D].Beijing:China University of Mining and Technology(Beijing),1995.
[7] 周力行. 颗粒湍能输运方程的两相湍流模型和平面闭式两相射流的数值模拟[J]. 中国科学,1988,31(12): 1 262-1 268.
ZHOU Lixing. Two phase turbulence model of particle turbulent energy transport equation and numerical simulation of planar closed two-phase jet[J]. Chinese Science, 1988,31(12): 1 262-1 268.
[8] 樊建人,岑可法,谷口博,等. 气-固多相射流的数值模拟[J]. 浙江大学学报,1987,21(6): 12-19.
FAN Jianren,CEN Kefa,GU Koubo,et al.Numerical simulation of gas-solid multiphase jet[J]. Journal of Zhejiang University,1987,21(6): 12-19.
[9] 刘毅,蒋仲安,蔡卫,等. 综采工作面粉尘运动规律的数值模拟[J]. 北京科技大学学报,2007,29(4): 351-353.
LIU Yi, JIANG Zhongan, CAI Wei, et al. Numerical simulation of dust movement law in fully mechanized coal mining[J]. Journal of University of Science and Technology Beijing, 2007,29(4): 351-353.
[10] 王晓珍,蒋仲安,王善文,等. 煤巷掘进过程中粉尘浓度分布的数值模拟[J]. 煤炭学报, 2007, 32(4): 386-390.
WANG Xiaozhen, JIANG Zhongan, WANG Shanwen, et al. Numerical simulation of distribution regularities of dust concentration during the ventilation process of coal roadway driving[J]. Journal of China Coal Society,2007,32(4): 386-390.
[11] 牛伟,蒋仲安. 综采工作面粉尘运动规律数值模拟及应用[J]. 辽宁工程技术大学学报, 2010,29(3): 357-360.
NIU Wei, JIANG Zhongan. Numerical simulation of dust moving regularities at fully-mechanized coal faces and its utilization[J]. Journal of Liaoning Technical University, 2010,29(3): 357-360.

[1]	张颖, 黄国洪, 龙雨娇. 高层建筑不同外保温立面结构火蔓延模拟研究[J]. 中国安全科学学报, 2024, 34(5): 122-128.
[2]	刘恩斌, 李茜, 寇博, 姜军, 李党建. 页岩气分离器阀套式排污阀冲蚀特性研究[J]. 中国安全科学学报, 2024, 34(5): 52-60.
[3]	何文, 卢博凯, 石文芳, 祝思雨, 刘金朋. 超声空化效应对细粒尾矿的增渗作用[J]. 中国安全科学学报, 2024, 34(5): 91-100.
[4]	夏勇, 安瑞楠, 张伟锋, 张超, 何坤, 林鹏. 高海拔长大水工隧洞群挡烟垂壁控烟机制[J]. 中国安全科学学报, 2024, 34(4): 58-66.
[5]	彭善碧, 罗雪. 埋地掺氢天然气管道泄漏扩散数值模拟研究[J]. 中国安全科学学报, 2024, 34(3): 63-69.
[6]	段继超, 宗琦, 汪海波, 王浩. 起爆顺序对台阶岩石破碎块度及爆破振动影响研究[J]. 中国安全科学学报, 2024, 34(2): 192-199.
[7]	熊小慧, 张朵朵, 耿语堂, 杨波, 唐明赞, 陈光. 400 km/h高速列车过隧道时列车风特性研究[J]. 中国安全科学学报, 2024, 34(1): 106-115.
[8]	彭善碧, 李薇, 唐平. 基于FLACS的地下暗厨房燃气爆炸数值模拟[J]. 中国安全科学学报, 2024, 34(1): 215-222.
[9]	王瑜, 焦晓亮, 赵长海, 宋德林. 露天煤矿吊斗铲倒堆工艺粉尘扩散特征研究[J]. 中国安全科学学报, 2023, 33(S2): 188-194.
[10]	张莉聪, 李斯曼, 周振兴. 煤矿瓦斯多相协同抑爆的研究进展与展望[J]. 中国安全科学学报, 2023, 33(S1): 97-104.
[11]	张健, 张鹏妍, 魏建平, SI Guangyao, 许博, 许振国. 巷道围岩调热圈分布特性研究:以羊场湾煤矿为例[J]. 中国安全科学学报, 2023, 33(8): 125-133.
[12]	安伟光, 广大庆. 隧道运动体火灾温度分布及烟气输运特性[J]. 中国安全科学学报, 2023, 33(8): 77-83.
[13]	仇培云, 陈俊沣, 程辉航, 龙增, 钟茂华. 地铁停车线区域通风排烟模式研究[J]. 中国安全科学学报, 2023, 33(7): 156-163.
[14]	李沛琳, 蒋仲安, 曾发镔. 制曲车间多尘源粉尘分布特征数值模拟[J]. 中国安全科学学报, 2023, 33(4): 130-139.
[15]	张仲宇, 李兆平, 杨航, 龙奇峰, 冯超. 并行基坑施工对邻近桥梁影响及保护措施[J]. 中国安全科学学报, 2023, 33(3): 68-74.

不同风速下巷道断面微细粉尘分布模拟试验研究

Simulation experimental study on fine dust distribution over roadway section under different wind speeds

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价