In order to study the effect of electrochemical oxidation of pyrite in high-sulfur coal on coal spontaneous combustion, the electrochemical oxidation reaction of pyrite in coal was promoted by electrolysis experiments. The FTIR test results show that the content of active groups -OH and -CH2 increases after electrolysis of high sulfur coal. According to the ignition activation energy theory, which can determine the difficulty of spontaneous combustion of coal, the activation energy of coal samples before and after electrolysis was calculated by TG curve. The ignition activation energy of high-sulfur coal after electrolysis treatment is reduced to 0.85 times that of raw coal, and the ignition activation energy of low-sulfur coal remains basically unchanged. The electrochemical oxidation process of pyrite promotes the enhancement of coal polarization and promotes the development of reactive groups, thereby enhancing the activity of coal and promoting the spontaneous combustion of coal. In addition, compared with raw coal, the shortest ignition time of high sulfur coal after electrolysis was shortened by 14 hours, which indicates that the electrochemical oxidation process of pyrite effectively promoted the low temperature oxidation reaction of coal.

为了研究高硫煤中黄铁矿的电化学氧化对煤自燃的影响，通过电解实验促进了黄铁矿在煤中的电化学氧化反应。FTIR测试结果表明，高硫煤电解后，活性基团-OH和-CH2的含量增加。根据能够确定煤自燃困难的点火活化能理论，利用TG曲线计算了电解前后煤样品的活化能。电解处理后高硫煤的着火活化能降低到原煤的0.85倍，低硫煤的着火活化能基本保持不变。黄铁矿的电化学氧化过程促进了煤的极化增强，并促进了反应性基团的发展，从而增强了煤的活性并促进了煤的自燃。另外，与原煤相比，电解后高硫煤的最短着火时间缩短了14小时，这表明黄铁矿的电化学氧化过程有效地促进了煤的低温氧化反应。