矿井热源分析及降温技术研究和发展

矿井热源分析及降温技术对深井开采有重要意义。从矿井巷道内岩体放热、矿石氧化放热、机电设备放热、井下热水放热及局部热源放热5方面分析煤矿热害来源。将矿井降温技术分为传统降温技术和现代降温技术2大类型，评述各降温技术原理、特点及应用现状。机械制冰降温仍然存在运冰和融冰技术难题。机械制冷水降温技术应用成熟，已经成为现行矿井降温的主要手段；瓦斯发电制冷降温技术有机地结合了煤矿瓦斯排放和治理井下热害问题，实现了能源的合理利用；分离式热管降温技术适应大型化换热设备，冷、热流体完全分隔开，且系统循环不需要外加动力。另外，提出了现行矿井降温技术的一些改进方法及研究趋势。

The Heat Source Analysis and the Research and Development on Air-cooling in Deep Mines

Mine heat sources analysis and cooling techniques are important for deep mining.Heat hazards in mines were analyzed from five aspects of heat releases from mine tunnel rocks，ore oxidation，the electrical and mechanical equipment，underground heat water and local heat sources.And the air-cooling techniques were classified into traditional cooling technology and modern cooling technology，and their principle，characteristics and application status were discussed respectively.There exists ice transportation and melting issues in cooling technique of ice manufacturing.But，the technique of cooling water is so mature that it has become the main cooling mean.The cooling techniques of gas power generation could eliminate the gas emission and heat hazard in the mine，and realize the utilization of resources in a more intelligent way.The cooling techniques of separate type heat pipe which is suitable for the large-scale heat-exchange equipments completely separated cooled water from warmed fluid without external power.Besides，the development and trend on the current cooling techniques in underground mines were proposed.