Study on Spontaneous Combustion Area Judgment Technology of Coal Gangue
3RD INTERNATIONAL WORKSHOP ON MINE HAZARDS PREVENTION AND CONTROL(2013)
摘要
In view of spontaneous combustion characteristics of coal gangue, this paper applies Modified Shepard's Method that is based on nodes infrared temperature measurement and adopts Surfer software to calculate and analyze the surface temperature, then find out the surface high temperature area; The fire representative gas concentration is used as index to explore the high temperature area with the aid of multi-parameter gas detector; Finally arranging exploration drilling with a way of "thick after sparse" to lock internal fire area. Then a set of improved spontaneous combustion area judgment technology was developed and applied to YuQuan coal mine in Shanxi province. Practical application shows that: This technique avoided the blindness of constructing exploration drilling, reduced engineering cost, improved efficiency and accuracy of judgment and played a key roly in the guidance of fire fighting.
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关键词
Coal gangue,Surface temperature,Modified Shepard's Method,Exploration drilling,Spontaneous combustion area judgment
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