Research On Feature Of Thermal Disaster And The Control Effect In Zhuji Coal Mine

Thermal disaster is an increasingly prominent problem. The problem is researched at home and abroad. For China, the research of the thermal disaster is stared later than others countries. But the great progress is made in China. There are still related problems to deal with. The thermal disaster is becoming more and more severe, especially in huainan coal mine. At the same time, the thermal problem has been an obstacle to deeply exploit in coal industry.Zhuji coal mine is one of coal mines of high temperature and thermal disaster in huainan. In this paper, theory analysis and field measurement are used to solve the problem that is the thermal disaster in Zhuji coal mine. The temperature of original rock is obtained in some main mining areas by measuring directly the temperature for underworkings. The law of geothermal field, influencing factors of geothermal field and heat source in coal mine are analysed. Meanwhile the law of ventilating current’s temperature rise and the cooling effect are also analysed in zhuji coal mine. Some conclusion are made, as follows:1. The heat temperature is due to deep mine depth, geologic structure and bearing coal layer covered by thick loose ground and so on.2.The elevation of field measurement is-863m-1018m, the temperature of original rock is42.4℃-46.5℃, predicting the temperature of original rock is47.8℃-49.8℃in-1070m.3.The heat source and temperature rising process for underworkings are analysed by theory method, the law of ventilating current’s temperature rise is summarized by field measurement.4.The feature and working condition of cooling technology in coal mine are analysed, inspecting the cooling for zhuji coal mine. The effect of cooling is obvious after taking cooling measure. It turns out that the dry bulb temperature is reduce by4℃and relative humidity is about10%-20%.