Measurement of Characteristic Temperature of Coal Spontaneous Combustion with Growth Rate Analysis in Yuhua Coal Mine
DENG Jun
ZHAO Jingyu
ZHANG Yanni
Abstract：Characteristic temperature is an important characteristic parameter of coal spontaneous combustion and the measurement of this temperature has a guiding significance for prediction and prevention of coal spontaneous combustion. Based on the index gas analysis, the growth rate analysis was established, coal samples in different particle sizes taking from Yuhua Mine were selected for programmed temperature-rise experiments, the index gases were analyzed and tested, and the characteristic temperature was thus obtained. Finally, the correctness of growth rate analysis was verified by using the volume fraction ratio of CO and CO2 and the alkane ratio. The results showed that the use of growth rate analysis can rapidly and effectively get the characteristic temperature values of coal spontaneous combustion.
Keywords：coal spontaneous combustionprogrammed temperature riseindex gas analysisgrowth rate analysis
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 7-10 )