Cooling Effect Analysis of Suppressing Coal Spontaneous Ignition with Heat Pipe

International Conference on Smart Engineering Materials 2018

Zhang, Yaping^1 ; Zhang, Shuanwei^1 ; Wang, Jianguo^1 ; Hao, Gaihong^1

College of Energy Engineering, Xi'An University of Science and Technology, Xi'an

710054, China^1

关键词: Coal oxidation;    Coal spontaneous combustion;    Coal stockpiles;    Cooling effects;    Cooling mechanism;    High temperature;    Research results;    Spontaneous ignition;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/362/1/012022/pdf
DOI  :  10.1088/1757-899X/362/1/012022

来源: IOP

【 摘 要 】

Suppression of spontaneous ignition of coal stockpiles was an important issue for safe utilization of coal. The large thermal energy from coal spontaneous ignition can be viewed as the latent energy source to further utilize for saving energy purpose. Heat pipe was the more promising way to diffuse effectively concentrated energy of the coal stockpile, so that retarding coal spontaneous combustion was therefore highly desirable. The cooling mechanism of the coal with heat pipe was pursued. Based on the research result, the thermal energy can be transported from the coal seam to the surface continuously with the use of heat pipe. Once installed the heat pipes will work automatically as long as the coal oxidation reaction was happened. The experiment was indicated that it can significantly spread the high temperature of the coal pile.