通过理论研究和实验分析 ,证实神华煤的氧化自燃 ,主要是含硫量。而变质程度低、内水大、含氧高、挥发分高、燃点低 ,是神华煤自燃的次要原因。由于神华煤的含硫量非常低 ,一般小于 0 .5 % ,因此在研究神华煤的自燃机理时要注意这个问题 Through theoretical research and experimental analysis, it was confirmed that Shenhua coal spontaneous combustion, mainly sulfur content. The low degree of metamorphism, large water, high oxygen content, high volatility, low ignition, Shenhua coal spontaneous secondary reason. Due to the very low sulfur content of Shenhua coal, which is generally less than 0.5%, we should pay attention to this issue when studying the spontaneous combustion mechanism of Shenhua coal