长距离掘进巷道热湿源分布的测定与分析  

Heat and Moisture Source Distribution Determination and Analysis of Long Distance Excavation Roadway

作　　者：魏诚 褚召祥 张鹏 张华 

机构地区：[1]河北省国控矿业开发投资有限公司,河北石家庄050000 [2]中国矿业大学力学与土木工程学院,江苏徐州221116

出　　处：《煤矿安全》2018年第1期202-205,209,共5页Safety in Coal Mines

摘　　要：以赵楼煤矿存在高温热害现象的长距离掘进巷道为研究对象,采用分区段法将巷道划分为5个区段,对巷道内热湿源分布进行了现场测定与分析。结果表明:赵楼煤矿长距离掘进巷道内主要热湿源为围岩、热涌水和机电设备;整个掘进巷道中以掘进工作面近区(距离掘进工作面迎头50 m范围区域)热湿交换最为活跃;巷道内围岩、机电设备和热涌水的散热散湿导致回风流的吸热、吸湿使其热力参数发生了变化。在工程实际应用中,掘进工作面机械制冷降温所需冷负荷应将各主要热源散热量和风流热力参数变化情况(焓差)综合考虑,重点遏制或弱化工作面近区的热湿交换过程,从掘进迎头开始减轻整个巷道内的高温热害程度。In this paper,taking a long distance mine excavation roadway with high temperature phenomenon in Zhaolou Coal Mine as the main study object,the long distance roadway was divided into 5 parts and the heat and moisture sources distribution were determined and analyzed by field testing.The results show that the main heat and moisture sources in this long distance roadway of Zhaolou Coal Mine are rock,hot gushing water and electrical equipment.The whole tunnelling roadway near working face region（50 m）is the most active area for heat and moisture exchange.The heat dissipation of surrounding rock,electromechanical equipment and hot water in the roadway caused the heat absorption and moisture absorption of the return air and the change of the thermal parameters.In the practical engineering application,the cooling load of the mechanical cooling of the heading face should consider the change of heat loss and thermal parameters（enthalpy change） of the main heat sources.The hot and humidity exchange process in the area near the working face is mainly contained or weakened,and the heat damage degree of the whole roadway can be reduced from the driving head.

关 键 词：热害矿井 掘进工作面 热湿源 焓差 比例 

分 类 号：TD727.2[矿业工程—矿井通风与安全]