郭传清,陶维国,掌奕然,等. 采煤工作面空冷器位置及风流参数优化研究[J]. 煤矿安全,2024,55(6):84−90. doi: 10.13347/j.cnki.mkaq.20230920
    引用本文: 郭传清,陶维国,掌奕然,等. 采煤工作面空冷器位置及风流参数优化研究[J]. 煤矿安全,2024,55(6):84−90. doi: 10.13347/j.cnki.mkaq.20230920
    GUO Chuanqing, TAO Weiguo, ZHANG Yiran, et al. Optimization study of air cooler position and air flow parameters in coal mining face[J]. Safety in Coal Mines, 2024, 55(6): 84−90. doi: 10.13347/j.cnki.mkaq.20230920
    Citation: GUO Chuanqing, TAO Weiguo, ZHANG Yiran, et al. Optimization study of air cooler position and air flow parameters in coal mining face[J]. Safety in Coal Mines, 2024, 55(6): 84−90. doi: 10.13347/j.cnki.mkaq.20230920

    采煤工作面空冷器位置及风流参数优化研究

    Optimization study of air cooler position and air flow parameters in coal mining face

    • 摘要: 针对济宁二号煤矿10303采煤工作面高温热害问题,采用数值分析方法,建立了工作面物理模型,分析了风筒长度、风筒的出风口距离及温度等多因素对降温系统的影响,确定了不同工况(生产和停产)的温度控制参数;通过自动启闭控温设施控制空冷器出风温度,实现了不同作业下采煤工作面所需的制冷量,解决了工作面高温热害问题。结果表明:100 m风筒长度、50 m风筒出风距离的降温效果最好;当工作面正常开采作业时,出风温度设置应小于16.5 ℃,工作面的平均温度将降低3.7 ℃;当停采作业时,出风温度设置应小于20.5 ℃,此时工作面的平均温度将降低3.5 ℃;2种工况下的参数均能达到采煤工作面的温度控制目标。

       

      Abstract: In order to solve the problem of high temperature and heat damage in the 10303 coal mining face of Jining No.2 Coal Mine, numerical analysis method was used to establish a physical model of the working face and to analyze the influence of multiple factors on the cooling system, such as the length of the wind pipe, the distance between the air outlet of the wind pipe and the temperature, and determine the temperature control parameters for different working conditions (production and shutdown), and then control the temperature of the air cooler air outlet through the automatic opening and closing of the temperature-control facilities, so that the required cooling capacity of the coal mining face is realized under different operations. The cooling capacity required by the working face is realized under different operations, and the problem of high-temperature heat damage in the working face is solved. The results show that the cooling effect of 100 m length of wind pipe and 50 m distance of wind pipe is the best. When the working face is under normal mining operation, the outlet temperature setting should be less than 16.5 ℃, and the average temperature of the working face will be reduced by 3.7 ℃; when the mining operation is stopped, the outlet temperature setting should be less than 20.5 ℃, and the average temperature of the working face will be reduced by 3.5 ℃, and the parameters of the two working conditions can achieve the temperature control target of the coal mining working face.

       

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