棋盘井煤矿生产过程粉尘污染特性及最优抑尘风量的数值模拟研究  

Numerical Simulation Study on Dust Pollution Characteristics and Optimal Dust Suppression Air Volume in Production Process of Qipanjing Coal Mine

作　　者：王忠伟 WANG Zhongwei(CHN Energy Mengxi Coal Coke Chemical Co.,Ltd.,Ordos 016064,China)

机构地区：[1]国能蒙西煤焦化工股份有限公司,内蒙古鄂尔多斯016064

出　　处：《煤炭技术》2025年第3期213-217,共5页Coal Technology

摘　　要：通风除尘是矿山最基本的防尘手段。为了获得巷道最优除尘风量,建立了采空区和多尘源高度模拟的物理模型。此外,结合数值模拟方法,分析了风量对粉尘源扩散规律的影响。研究结果表明:在风量为700~1600 m^(3)/min时,随着风量的增大,综采工作面粉尘质量浓度逐渐降低;但是,较高的空气流速会引起粉尘的再次夹带,再次污染工作环境。确定进风的最佳除尘风量在1500~1600 m^(3)/min时,在适合正常运行的工作区内产生的平均粉尘最低。该风量范围可作为矿井通风设计的参考,为煤矿工人提供清洁安全的生产环境。此外,研究方法和成果对制定和发展有效的防尘除尘清洁生产技术具有重要意义,可为非煤矿、隧道等地下工程的通风设计提供参考。Ventilation and dust removal are the most basic means of dust prevention in mines.In order to obtain the optimal dust removal air volume in the tunnel,a physical model was established for simulating the height of goaf and multiple dust sources.In addition,combined with numerical simulation methods,the influence of flow rate on the diffusion law of dust sources was analyzed.The research results indicate that within a certain range of 700-1600 m^(3)/min,with the increase of air volume,the dust concentration of fully mechanized working flour gradually decreases;However,high air flow rates can cause dust to re entrain and contaminate the working environment.The optimal dust removal air volume for air intake is determined to be within the range of 1500-1600 m^(3)/min,which is the lowest average dust quality generated in a working area suitable for normal operation.This air volume range can serve as a reference for mine ventilation design,providing a clean and safe production environment for coal miners.In addition,the research methods and achievements are of great significance for the formulation and development of effective dust prevention and cleaning production technologies,and can provide reference for the ventilation design of underground projects such as non coal mines and tunnels.

关 键 词：数值模拟 多粉尘源 清洁安全生产 最优的除尘空气流量 粉尘治理 

分 类 号：TD714[矿业工程—矿井通风与安全] TD72