硫化矿石堆氧化自燃全过程特征综述与分析

Characteristic overview and analysis of spontaneous combustion of sulfide ores

针对能产生自燃内因火灾的典型硫化矿石类型,介绍了其堆积、氧化自热、着火及燃烧各阶段的特征,分析了氧化自燃发生的原因和发展过程,并探讨了影响硫化矿石自燃的各种因素及其作用机理。在此基础上,澄清了对硫化矿山火灾防治有重要指导意义的自燃发火初期的概念及其征兆识别方法,可为现场硫化矿山自燃火灾的早期识别与防治提供指导。

On the basis of introducing sulfide ore types which could produce spontaneous combustion, the characters of spontaneous combustion, including stages of deposition, thermal oxidation, ignition and combustion, were introduced. The reasons of producing oxidation spontaneous combustion and its course were analyzed, and the influencing factors and the mechanisms of the course. On the base, the important conception and identification of the early firing stage, which was significant to sulfide fire prevention and treatment, was clarified. It could play a certain role as a guide of mine self-ignite disaster for the early identification and prevention work.