干燥巷道围岩传热对平巷风流温度影响研究

Influences of Wall Rock Heat Transmitting on Airflow Temperature in Dry Roadway

井下巷道中的风流温度受到多种因素的影响,如原岩温度、围岩传热性能、风流与围岩的热交换时间、其他热源等,其中围岩传热起主要作用。为分析围岩传热对风温的影响,以干燥巷道为例,根据巷道围岩与风流热交换规律,通过理论计算,分析水平巷道围岩与风流热交换对风温变化的基本影响规律,为矿井通风设计提供较精确的预测值,使矿井通风设计更精细。

Airflow temperature in underground roadways is affected by various factors,such as the original rock temperature,the heat transfer performance of wall rock,the time of heat exchange between rock and airflow,and other heat sources,in which heat transfer of wall rock plays a key role.In order to analyze the influence of heat transfer of surrounding rock on airflow temperature,this paper analyzes basic impact rules of heat exchange between walk rock and airflow in dry horizontal roadways on airflow temperature through the theoretical calculation,according to the heat transfer rule of wall rocks and air flow.This provides a more accurate forecast value for the mine ventilation design,which makes the design more precision.