深井矿区温度场特征及热湿交换研究
2021-08-28李广龙
李广龙



【摘 要】论文主要研究深井矿区工作面温度场的特征和热湿交换问题,综合考虑矿井安全性和人体舒适度2个方面,通过对工作面各个热源及井下地温特征的具体分析,运用热工基础、工程热力学的理论知识,推导出具体的热载荷计算公式,利用反分析法进一步分析处理得到的结果。建立深井矿区工作面热湿交换模型,依据验算比对,算出矿井内巷道的各种热源的传热值,致力于总结一种实用、可靠、简洁的验算办法。这不仅可以预测矿内风流状态,还可以为确定矿井温降措施提供科学理论依据和必要的基础信息。
【Abstract】This paper mainly studies the characteristics of the temperature field of the working face and the heat and moisture exchange in the deep mine area, comprehensively considers the safety of the mine and the comfort of the human body, and through the specific analysis of the various heat sources of the working face and the characteristics of the underground ground temperature, the specific thermal load calculation formula is derived by using the theoretical knowledge of thermal engineering and engineering thermodynamics, and the results are further analyzed and processed by the reverse analysis method. The heat and moisture exchange model of working face in deep mine area is established, and the heat transfer value of various heat sources in roadway in mine is calculated based on checking calculation and comparison, and a practical, reliable and simple checking method is summarized. This can not only predict the airflow state in the mine, but also provide scientific theoretical basis and necessary basic information for determining the mine temperature drop measures.
【关键词】高温矿井;地温特征;热湿交换;热荷载
【Keywords】high temperature mine; geothermal features; heat and moisture exchange; thermal load
【中图分类号】TD722 【文獻标志码】A 【文章编号】1673-1069(2021)09-0194-03
1 引言
伴随着人们不断对矿产资源的深度开发,国内的露天地表矿产、浅层矿产、开采技术相对简单单一的矿产储量已基本消耗殆尽,为继续满足国内经济和社会发展需要,使得国内大部分矿山进入深部或复杂矿产的采掘阶段,深部开采将面临着岩层控制、井下工作环境、深部回采工艺等一系列突出问题。由此可以看出,井下工作环境的热害问题对矿井和工人的安全影响越来越突出,以通风、降温、制冷等方式来解决热害问题变成矿山重要的研究方向。要科学分析各种数据,确定个性化制冷装置,主要是确定矿山巷道的低温特征和各个热源情况,而弄清矿井内的热湿交换机理就显得尤为重要,这是进行一切降温除湿技术的理论基础。……
