黄金矿山深部开采井下热源分析  

Analysis of heat sources in deep underground mining of gold mines

作　　者：吴锋 李明[1] 彭剑平 Wu Feng;Li Ming;Peng Jianping(School of Resources and Environmental Engineering,Shandong University of Technology;Zhaojin Mining Industry Co.,Ltd.)

机构地区：[1]山东理工大学资源与环境工程学院 [2]招金矿业股份有限公司

出　　处：《黄金》2024年第7期17-21,共5页Gold

基　　金：山东省重点研发计划(竞争性创新平台)项目(2022CXPT032)。

摘　　要：为量化黄金矿山深部开采过程中释放的热量,进而给出热害治理建议,分析了矿区原岩温度随深度的变化并对爆破、围岩、设备等热源散热量进行了计算。研究结果表明:矿区地温梯度约为1.7℃/100 m,进入-752 m中段生产时,原岩温度将达到34.3℃;深部开采过程中,夏季主要散热源为机械设备(电能)及空气压缩散热,分别占比38.18%及26.56%,冬季主要散热源为围岩散热及机械设备,分别占比38.74%及24.81%;深部开采通风量为67.9 m^(3)/s时,可保证深部开采过程中整体环境适宜性,当局部出现高温时,可以针对性采用加大通风进行降温。To quantify the heat released during the deep mining of gold mines and provide suggestions for heat hazard management,this study analyzed the variation of original rock temperature with depth and calculated the heat release from blasting,surrounding rock,and equipment.The results show that the geothermal gradient of the mining area is approximately 1.7℃/100 m.At the-752 m level,the original rock temperature reaches 34.3℃.During deep mining,the main heat sources in summer are heat release from electric power of mechanical equipment and air compression,accounting for 38.18%and 26.56%of the total heat,respectively.In winter,the primary heat sources are heat released from surrounding rocks and mechanical equipment,accounting for 38.74%and 24.81%of the total heat,respectively.With a ventilation rate of 67.9 m^(3)/s,the overall environment during deep mining can be kept suitable.In cases of localized high temperatures,targeted cooling can be achieved by increasing ventilation.

关 键 词：深部开采 黄金矿山 原岩温度 井下热源 高温热害 

分 类 号：TD727[矿业工程—矿井通风与安全]