The spontaneous combustion of sulfur-bearing ore is the result of the combination of sulfur-bearing ore and oxygen to release heat and increase the temperature of ore body under certain oxygen supply conditions and heat storage environment. However, for a long time, due to the complexity of ore-oxygen recombination process and the limitation of research methods, the research on spontaneous combustion mechanism of sulfur-containing ores is not systematic enough.

Therefore, it is of great significance to study the spontaneous combustion reaction process and mechanism of sulfur-containing ore by appropriate methods for the prevention and control of spontaneous combustion fire accidents of sulfur-containing ore. In this paper, theoretical analysis and experiment are combined to study.