综掘工作面长压短抽通风系统风筒合理位置研究

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英文篇名：Study on Reasonable Position of Blower in Long Pressure Short Draft Ventilation System in Fully Mechanized Heading Face 作者：王文才 ; 李晓芳 ; 安宁 英文作者：WANG Wen-cai;LI Xiao-fang;AN Ning;Institute of Mining Engineering, Inner Mongolia University of Science and Technology; 关键词：长压短抽 ; 风筒位置 ; 粉尘 ; 数值模拟 英文关键词：long pressure and short pumping;;hair dryer position;;dust;;numerical simulation 中文刊名：MTJS 英文刊名：Coal Technology 机构：内蒙古科技大学矿业研究院; 出版日期：2019-04-10 出版单位：煤炭技术 年：2019 期：v.38;No.304 基金：国家自然科学基金资助项目(51764044) 语种：中文; 页：MTJS201904044 页数：3 CN：04 ISSN：23-1393/TD 分类号：129-131

摘要

为提高长压短抽式通风系统的除尘效率,以某煤矿I020908工作面为研究背景,结合实际巷道内粉尘分布情况,对不同风筒位置的粉尘分布进行数值模拟。分析结果表明,当压风筒距掘进面距离为22.5 m和抽风筒距掘进面距离为4 m时,巷道内涡流区面积最小,粉尘扩散速度较快,通风除尘效果最佳,风筒布置位置最为合理。
        In order to improve the dust collection efficiency of long-distance and short-draft ventilation system, takes the I020908 face of a coal mine as the research background, and combines with the distribution of dust in the actual roadway to simulate the distribution of dust in different duct positions.The analysis results show that when the distance between the pressurizing air duct and the excavation surface is 22.5 m and the distance between the air extraction duct and the excavation surface is 4 m,the area of the eddy current zone in the tunnel is the smallest, the dust diffusion speed is fast, the ventilation and dust removal effects are the best, and the arrangement position of the air duct is the most reasonable.

引文

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