红透山铜锌矿循环预热通风系统重构及可行性研究
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1.长沙矿山研究院有限责任公司 湖南 长沙 金属矿山安全技术国家重点实验室 湖南 长沙;2.长沙矿山研究院有限责任公司

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Reconstruction and Feasibility Study of Circulating Preheating Ventilation System in Hongtoushan Copper-zinc Mine
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Chang sha Institute of Mining Research Co,Ltd,Changsha

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    摘要:

    红透山铜锌矿上部采空区充填后冬季预热防冻系统面临失效,通过利用上部恒温带及增温带多个中段井巷工程,增大预热岩壁暴露面积,对循环预热通风系统进行了重构和可行性研究。研究结果表明,红透山铜锌矿重构预热循环通风系统,将西风井改成进风井,入风温度在-25℃及以上,预热循环通风系统预热空气总量大于124.3m3/s,冬季120m3/s总风量预热后空气温度可达4.43℃,高于防冻井空气温度2℃。Ventsim热模拟预热效果显著,可以有效解决冬季主要提升井筒结冰、竖井卡罐及水管冻裂等问题,且在能耗经济上每年可节省754万元。

    Abstract:

    After filling the upper goaf of Hongtoushan Copper-Zinc Mine, the winter preheating and anti-freezing system is facing failure. By using multiple middle shaft and roadway projects in the upper constant temperature zone and warming zone, the exposed area of preheating rock wall is increased, and the reconstruction and feasibility study of circulating preheating ventilation system are carried out. The results show that the preheating circulation ventilation system is reconstructed in Hongtoushan copper-zinc mine, and the west air shaft is changed into the air inlet shaft. The inlet air temperature is -25℃ and above. The total amount of preheating air in the preheating circulation ventilation system is greater than 124.3m3/s. The air temperature can reach 4.43℃ after preheating with the total air volume of 120m3/s in winter, which is 2℃ higher than that of the anti-freezing well. The preheating effect of Ventsim thermal simulation is remarkable, which can effectively solve the problems of shaft freezing, shaft jam and water pipe freezing in winter, and can save 7.54 million yuan per year in energy consumption economy.

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历史
  • 收稿日期:2023-03-16
  • 最后修改日期:2023-03-22
  • 录用日期:2023-03-23
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