Study on Predicting Coal Spontaneous Combustion in Qingshan Mine

1 Introduction The mine fires caused by coal spontaneouscombustionthreats seriously to the safety of coalindustry. To prevent this kind of fire occurring,people pay more and more attentiontotheforecastfunction of sign gas of coal spontaneouscombustion1]. The sign gas of coal spontaneouscombustion is a certain kind of gas which canforecast and reflect the state of coal spontaneouscombustion,and the quantity of this kind of gaschanges regularly with coal warming up.The signgas has positive mean…

Study on Predicting Coal Spontaneous Combustion in Qingshan Mine

Based on the measurement experiment of oxidation with the intention of improving the sensitivity of each sign gas operatingness, this paper has researched carefully the change gas products in the process of temperature-up, for predicting coal spontaneous combustion and curves which show oxidation gas products of the coal samples of Qingshan mine changing with coal temperature. According to the actual condition of mine, the initial value k is led into, which is the ratio of the series of stuns of carbon monoxide and carbon dioxide in the process of temperature-up to the initial value of carbon dioxide, and it raises the quality and sensitivity of forecast curve of sign gas and auxiliary index, and determines the forecast curve and the corresponding fitting curve of the sign gas for predicting coal spontaneous combustion of Yongzi coal of Qingshan mine. So the experiment data can be provided to forecast and predict the mine fires caused by coal spontaneous combustion. Most of all, this is a perfect guide to the safety production in the mine areas according to the sign gases.