| 煤田火灾的形成机理及其探测和控制技术 |
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| 作者单位： | 1)School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China |
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| 基金项目： | financially supported by the Fundamental Research Funds for the Central Universities of China(Nos.2017CXNL02 and 2652018098);the National Key Research and Development Program of China(No.2018YFC0808100);the 111 Project(No.B17041);the Natural Science Foundation of Jiangsu Province(No.BK20170277) |
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| 摘 要： | Coalfield fires are considered a global crisis that contributes significantly to environmental destruction and loss of coal resources and poses a serious threat to human safety and health. In this paper, research related to the initiation, development, and evolution of coalfield fires is reviewed. The existing detection and control techniques of coalfield fires are also reviewed. Traditional firefighting is associated with waste of resources, potential risks of recrudescence, potential safety hazards, extensive and expensive engineering works, and power shortages. Recently, coalfield fires have been recognized as having significant potential for energy conservation and heat energy recovery. Thermoelectric power generation is regarded as a suitable technology for the utilization of heat from coalfield fires. The extraction of heat from coalfield fires can also control coalfield fires and prevent reignition leading to combustion. Technologies for absorbing heat from burning coal and overlying rocks are also analyzed. In addition, the control mode of “three-region linkage” is proposed to improve firefighting efficiency. Integrating heat energy recovery with firefighting is an innovative method to control coalfield fires.
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| 关 键 词： | ,,,,,,,,, |
Causes and detection of coalfield fires,control techniques,and heat energy recovery: A review |
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| Authors: | He-tao Su Fu-bao Zhou Bo-bo Shi Hai-ning Qi Jin-chang Deng |
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| Abstract: | Coalfield fires are considered a global crisis that contributes significantly to environmental destruction and loss of coal resources and poses a serious threat to human safety and health. In this paper, research related to the initiation, development, and evolution of coalfield fires is reviewed. The existing detection and control techniques of coalfield fires are also reviewed. Traditional firefighting is associated with waste of resources, potential risks of recrudescence, potential safety hazards, extensive and expensive engineering works, and power shortages. Recently,coalfield fires have been recognized as having significant potential for energy conservation and heat energy recovery. Thermoelectric power generation is regarded as a suitable technology for the utilization of heat from coalfield fires. The extraction of heat from coalfield fires can also control coalfield fires and prevent reignition leading to combustion. Technologies for absorbing heat from burning coal and overlying rocks are also analyzed. In addition, the control mode of "three-region linkage" is proposed to improve firefighting efficiency. Integrating heat energy recovery with firefighting is an innovative method to control coalfield fires. |
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| Keywords: | spontaneous coal combustion oxygen supply firefighting thermoelectric thermosyphon three-region linkage |
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