Influencing Factors and Revision Methods of Forecasting Coal Spontaneous Combustion

摘要

The major factors which affect forecasting coal spontaneous combustion in mine are oxidization environmental change, coal quantitative change of oxidization source, and density change of symbolic gas. This paper has analyzed the affecting way of three factors according to the test parameter, and refers respectively the revision methods. Through demonstration, the conclusion is drew that the ratio of different gas quantity decomposed by all oxidization source coals is equal to the ratio of different gas quantity decomposed by unit coal of oxidization center under any coal oxidization and temperature-up condition. On the basis of these, established the corresponding relation of between the ratio and coal temperature-up is closer to coal actual spontaneous combustion and can guarantee the upper credibility.