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    An integrated model for predicting atmospheric status in a sealed mine area

    Access Status
    Fulltext not available
    Authors
    Cheng, Jianwei
    Luo, Y.
    Date
    2011
    Type
    Conference Paper
    
    Metadata
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    Citation
    Cheng, J. and Luo, Y. 2011. An integrated model for predicting atmospheric status in a sealed mine area, in Proceedings of the 28th Annual International Pittsburgh Coal Conference 2011, Sep 12-15 2011, pp. 456-470. Pittsburgh: University of Pittsburgh.
    Source Title
    28th Annual International Pittsburgh Coal Conference 2011, PCC 2011
    ISBN
    9781618393982
    School
    Dept of Mining Eng & Metallurgical Eng
    URI
    http://hdl.handle.net/20.500.11937/29607
    Collection
    • Curtin Research Publications
    Abstract

    Methane and coal dust explosions are the most feared hazards in the coal industry worldwide. A majority of these explosions were originated from or around the sealed areas. According to statistics, nearly all coal mine explosions initially started with the ignition of combustible gases such as methane, carbon monoxide, etc. However, due to inaccessible to the sealed area, predicting the gas composition change pattern and determining the explosibility of the gas-air mixture in a sealed volume become a challenge for mining engineers. In this paper, the most important factors to control the atmosphere compositions in a sealed area have been in detail analyzed. Based on these considerations, a mathematical model is proposed to predict the compositions changes in a sealed volume. In additional, the modified Coward's method is developed to check the explosibility of mine atmosphere, and new defined safety factor can also easily help the users understand the mine atmospheric status. Finally, the application of the integrated computer model in managing the mine sealed atmosphere is also discussed.

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