倾斜井巷围岩与空气间的热交换研究

Study on the Heat Exchange between the Wallrock and Airflow in Inclined Laneway

随着矿井开采深度的增加,地温不断增加,井巷围岩与空气热交换所占的比重也越来越大,研究一般情况下围岩与空气间的热交换规律对井下热源分析和风温预测都有着重要的意义。根据调热圈理论,在不考虑湿交换和其它井下热源的前提下,导出了倾斜井巷围岩与空气热交换的数学模型并得到了解析解,并用金洲矿业集团金青顶矿区的实测数据对模型进行了分析验证。

With the increase of mining depth and further the continuous increase of geotemperature, the heat exchange between laneway wallrock and airflow takes an increasing proportion. The study of this heat exchange law in normal circum- stances is of great significance to the underground heat source analysis and airflow temperature forecast. Based on the theory of cooled zone, a mathematical model for the heat exchange between the inclined laneway wallrock and airflow, without con- sidering the wetness exchange and other underground heat sources, was derived and its analytical solution obtained, which has been verified by the data practically measured in Jinqingding Mine area of Jinzhou Mining Group.