关键词: 金属硫化矿尘 , 爆炸 , 影响因素, 系统安全学理论 , 预防

Abstract:  Metal sulfide ores are widely used in industry， at the same time， it brings the danger of dust explosion in the process of mining， storage and transportation，because of the active chemical properties of iron and sulfur elements. The study progress of metal sulfide ores dust explosion in recent years was reviewed. The effects of sulfur content， iron content， particle size and shape， mass concentration and other factors on explosion parameters of metal sulfide ores dust were specifically analyzed， and compared with that of sulfur dust explosion and coal dust explosion. According to the system security theory， and based on the intrinsic safety， the technical points of preventing and controlling explosion of metal sulfide ores dust were expounded from three aspects: human （operator）-machine （metal sulfide ores dust）-environment （working environment）. Furthermore， the potential research directions of metal sulfide ores dust explosion， such as the influence of pyrrhotite doping， thermodynamics and kinetic model， were put forward. The unique properties of explosion of metal sulfide ores dust will make it a new research hotspot and will be further studied and applied.

Key words:  Metal sulfide ores dust, Explosion, Influence factors, System security theory, Prevent