The spontaneous combustion gangue mountain has attracted significant attention because of causing severe environmental pollution and inducing geological disasters.However,the rich internal thermal energy resources are often ignored.In order to control the spontaneous combustion gangue mountain and make use of its abundant internal heat resources,the study of gravity heat pipe group to control the spontaneous combustion gangue mountain and the effect of heat energy utilization were carried out,the storage capacity of heat energy resources was calculated and different heat energy utilization modes were proposed.The results show that:(1)After the treatment of gravity heat pipe group for 90 days,the internal temperature of the gangue mountain decreases to different degrees,and the maximum temperature decreases by more than 120℃.(2)The analysis of the cooling radius shows that the effective temperature control radius of the gravity heat pipe is 2 m.Within a radius of 1 m,the temperature drop can reach 15℃.(3)The amount of thermal energy resources contained within 10 m depth of gangue mountain is about 7.83×1013J.Thermal energy resources can be used for building heating,greenhouse heating and thermoelectric conversion for electricity generation.
Coal Ganguespontaneous combustiongravity heat pipecooling controlreserve evaluationthermal energy utilization
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维普
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