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Experiment study of optimization on prediction index gases of coal spontaneous combustion

  • Geological, Civil, Energy and Traffic Engineering
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Abstract

The coal of Anyuan Mine has the characteristic of easy spontaneous combustion. Conventional method is difficult to predict it. Coal samples from this mine were tested in laboratory. The data obtained from laboratory determination were initialized for the value which was defined as “K”. The ratio of each index gas and value of “K”, and the ratio of combination index gases and value of “K”, were analyzed simultaneously. The research results show that for this coal mine, if there is carbon monoxide in the gas sample, the phenomenon of oxidation and temperature rising for coal exists in this mine; if there is C2H4 in the gas sample, the temperature of coal perhaps exceeds 130 °C. If the coal temperature is between 35 °C and 130 °C, prediction and forecast for coal spontaneous combustion depend on the value of Φ(CO)/K mainly; if the temperature of coal is between 130 °C and 300 °C, prediction and forecast for coal spontaneous combustion depend on the value of Φ(C2H6)/Φ(C2H2) and Φ(C2H6)/K. The research results provide experimental basis for the prediction of coal spontaneous combustion in Anyuan coal mine, and have better guidance on safe production of this coal mine.

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Authors and Affiliations

  1. School of Energy and Safety Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China

    Hui-yong Niu  (牛会永), Xiang-ling Deng  (邓湘陵), Shi-lin Li  (李石林), Kang-xu Cai  (蔡康旭), Hao Zhu  (朱豪), Fang Li  (李芳) & Jun Deng  (邓军)

  2. Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Hunan University of Science and Technology, Xiangtan, 411201, China

    Hui-yong Niu  (牛会永), Shi-lin Li  (李石林) & Kang-xu Cai  (蔡康旭)

Authors
  1. Hui-yong Niu  (牛会永)
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  2. Xiang-ling Deng  (邓湘陵)
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  3. Shi-lin Li  (李石林)
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  4. Kang-xu Cai  (蔡康旭)
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  5. Hao Zhu  (朱豪)
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  6. Fang Li  (李芳)
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  7. Jun Deng  (邓军)
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Corresponding author

Correspondence to Hui-yong Niu  (牛会永).

Additional information

Foundation item: Projects(51274099, 51474106) supported by the National Natural Science Foundation of China

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Niu, Hy., Deng, Xl., Li, Sl. et al. Experiment study of optimization on prediction index gases of coal spontaneous combustion. J. Cent. South Univ. 23, 2321–2328 (2016). https://doi.org/10.1007/s11771-016-3290-y

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  • DOI: https://doi.org/10.1007/s11771-016-3290-y

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