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Division of coal spontaneous combustion stages and selection of indicator gases.
PLoS ONE, 2022 Investigating the division of coal spontaneous combustion stages and the selection of indicator gases is significant to the safe production of coal mines. In this study, the characteristic temperature of coal spontaneous combustion, the generation law of
Zongxiang Li +5 more
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Meikuang Anquan, 2023 With the gradual increase of coal seam mining depth, the protective seam mining has become a key scheme to effectively reduce coal spontaneous combustion.
ZHU Jian, WANG Xiaohuan, LI Wei, SHEN Hedi
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PLoS ONE, 2021 In order to effectively prevent and control spontaneous combustion of residual coal in the goaf and reduce the waste of nitrogen caused by setting the position of nitrogen injection, 1303 fully mechanized coal caving faces of the Jinniu Mine are studied.
Yun Qi +4 more
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Meikuang Anquan, 2022 The coal seam group in the outburst mine has the characteristics of mutual influence in the mining process, the goaf is connected, there are many air leakage places, and the fire prevention work is difficult.
DONG Xiaoming +4 more
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Effect of Physical and Chemical Structure of Shengli Lignite on Its Spontaneous Combustion Tendency
Taiyuan Ligong Daxue xuebao, 2021 A series of oxidized coal samples were prepared by oxidation of Shengli lignite in air at 140 ℃ and 160 ℃ for different time. The functional groups and pore structure parameters of coal samples were analyzed and tested by Fourier transform infrared ...
Lin GAO +4 more
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Prediction Model for Spontaneous Combustion of Coal around Boreholes Using Bedding Gas Drainage
Shock and Vibration, 2021 To accurately and reliably predict the time of spontaneous combustion of fractured coal around a borehole induced by gas drainage along the seam, this study performed an orthogonal test taking the No.
Youxin Zhao, Qingjie Qi, Xinlei Jia
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PLoS ONE, 2021 Due to the problems related to the numerous factors affecting the spontaneous combustion of goaf coal, such as sudden, uncertain, and dynamic changes, and the fact that the weight of the indexes in the prediction model of the spontaneous combustion risk ...
Wei Wang, Yun Qi, Baoshan Jia, Youli Yao
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Gong-kuang zidonghua, 2019 In view of goaf spontaneous combustion prevention of 12401 fully mechanized working face with large mining height in Shangwan Coal Mine, CO is determined as prediction index gas of coal spontaneous combustion and C2H4 is used as auxiliary index gas to ...
QU Shijia +3 more
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Prediction method and new monitoring technology of goaf spontaneous combustion fire
Meikuang Anquan, 2021 The characteristic of mine goaf spontaneous combustion was introduced and summarized. The gas index method and temperature measurement method for predicting and forecasting goaf spontaneous combustion were analyzed.
CHEN Yang, WANG Wei
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Energy Reports, 2021 For longwall top coal caving coalface characterized by strong rock burst tendency and high risk of spontaneous combustion, retreat speed is one of the key factors to induce the rock burst and spontaneous combustion of residual coal in goaf.
Shizhong Zhang +5 more
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