煤矿粉尘控制最新研究进展与关键问题分析

    Latest research progress and key issues analysis of coal mine dust control

    • 摘要: 为解决煤矿核心作业产尘区粉尘污染严重的问题,系统梳理并分析了煤矿粉尘控制技术的最新研究进展,重点探讨了喷雾降尘技术与通风除尘技术在实际应用中的关键问题,并结合新型喷雾与通风技术的发展,对不同技术的除尘效能进行了系统剖析。采用文献研究方法,将国内外相关研究归纳为试验研究与数值模拟2类进行对比分析,明确了各技术路径的特点与适用条件。研究发现,通风除尘技术存在风流−粉尘运移规律不完善、风量控制精度不足及辅助通风装置性能不佳等问题;喷雾降尘技术则面临气−尘−雾三相耦合模型计算复杂、喷雾环境仿真精度有限以及动态监测与控制能力滞后等挑战;化学抑尘与注水减尘虽可抑制粉尘扩散,但受化学试剂兼容性差和煤层渗透效率低等因素制约,实际抑尘效果难以保障。因此,未来研究应致力于发展先进仿真技术,融合人工智能与物联网技术实现风流−粉尘的实时监测与精准调控;构建计算效率更高、精度更好的气−尘−雾三相耦合模型,定量解析降尘效率并精确模拟复杂风流对雾场扩散的影响;积极推进环保型抑尘剂的研发,以实现高效抑尘与生态安全的统一,促进注水减尘、化学抑尘等技术的集成应用,全面提升煤矿粉尘的综合控制水平。通过理论创新与工程实践的深度融合,推动粉尘控制技术向智能化方向发展,从而改善井下作业环境,保障矿工身体健康,为煤矿粉尘治理技术的研发提供理论支持与方法参考。

       

      Abstract: In order to solve the problem of serious dust pollution in the dust producing area of the core operation of coal mine, the latest research progress of coal mine dust control technology is comprehensively discussed, and the key issues in practical application of spray dust removal technology and ventilation dust removal technology are deeply discussed. In view of the current research status of new spray and ventilation technologies, the dust removal capabilities of different technologies are systematically described. Based on literature research methods, domestic and foreign literatures are divided into experimental research and numerical simulation for analysis. It is pointed out that ventilation and dust removal technologies have deficiencies such as imperfect airflow and dust migration laws, inaccurate air volume control, and poor capacity of auxiliary ventilation devices. The limitations of the gas-dust-fog three-phase coupling model, such as large calculation amount, poor simulation effect of spray environment, backward dynamic monitoring and control ability are revealed. In addition, although chemical dust suppression and water injection dust reduction can effectively inhibit dust diffusion, it is limited by the technical bottlenecks of poor compatibility of chemical reagents and low permeability efficiency of coal seam, resulting in unstable dust suppression effect. Therefore, in the future, advanced simulation technology should be developed to realize real-time monitoring and accurate control of air flow and dust, and a more accurate gas-dust-fog three-phase coupling model with less calculation should be developed to quantitatively analyze the dust removal efficiency of spray, and more accurately simulate the influence of complex air flow field disturbance on spray diffusion. Strengthen the research and development of environment-friendly dust suppressants to realize the coordination of efficient dust suppression and ecological safety, the collaborative application of water injection and chemical dust suppression technology is promoted to improve the dust control efficiency of coal mine. Through the combination of theoretical innovation and engineering practice, the intelligent development of dust control technology is promoted, the underground working environment is improved, and the health of workers is guaranteed, which provides theoretical support and research means for the development of coal mine dust control technology.

       

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