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Metal Mine ›› 2014, Vol. 43 ›› Issue (05): 158-161.

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Utilization Methods of Geothermal Resources in Jiaodong Peninsula Mines

Zhang Yongliang1,Liu Yaoxiang2,Chen Xishan1   

  1. 1.Huangdao Campus Automotive School,Qingdao Technological University,Qingdao 266520,China;2.Development Bureau of Science and Technology of Qingdao Economic and Technological Development Zone,Qingdao 266520,China
  • Online:2014-05-15 Published:2014-09-11

Abstract: With the large consumption of mineral resources,the deep mining in the mine becomes an inevitable trend,and more and more geothermal issues are emerging with it.The mine geothermal water is fresh water resource and contains heat energy,so it is very useful.Mine geothermal water belongs to green energy.However,without reasonably utilization,it will result in underground high temperature and seriously influence the production efficiency.In order to recycle mine geothermal resources,the principle and method of utilizing geothermal resources were analyzed from aspects of regulating inlet air temperature by the ground temperature effect,applying heat pump to metal mine and the recharging system of geothermal water respectively.Then,the corresponding theoretical models were built such as the heat exchange model between shallow borehole and air,the three-dimensional unsteady-flow mathematical model of pressure recharging.Experimental research and analysis on the utilization of geothermal resources were made,and then were applied into the typical metal mines in Jiaodong peninsula.The results showed that it is feasible for rationally utilizing mine geothermal resources in theory and practice.The research explores a possible way for development of mine green energy in China.

Key words: Mine geothermal resources, Heat exchange, Cyclic utilization, Recharge