硫化矿爆破开采中的炸药自爆现象是高硫矿山生产中可能遭遇的典型灾害之一，其严重影响着矿山的安全生产。本项目拟以硫化矿诱导炸药自爆的动态全过程为研究对象，联合采取实践调研、理论计算、实验模拟、数值解析、现代分析表征等多种技术手段围绕炸药自爆的宏微观特征及阻化抑制机理开展深入研究。揭示硫化矿与炸药相互作用的化学反应动力学机制及反应全过程中的微观结构、化学组成等特征量的演变规律。构建炮孔内硫化矿自燃-炸药自爆的多参数耦合量化模型，揭示整个反应历程中的温度、气体浓度、高温热点等特征值的迁移规律。探索硫化矿-炸药自爆主要影响因素之间的耦合效应，构建炸药自爆危险性判别准则。揭示典型阻化材料抑制硫化矿与炸药相互作用的微观机理，优选配制高效中止硫化矿-炸药反应的阻化材料。本项目旨在从宏观、微观两个层面探索多参数耦合作用下硫化矿诱发炸药自爆的致灾及抑制机理，为高硫矿山有效防控类似事故提供理论依据。

Spontaneous detontion of explosives is one of the most typical disasters during the blasting mining of sulfur-rich mines, which affects the safety mining seriously. For this research project, the whole dynamic process of spontaneous detonation of explosives caused by sulfide ores is targeted as the study objective. The practical survey, theoretical calculation, laboratory simulation, numerical analysis and modern analysis technology are chosen to discuss the macro-micro characteristics and retarding mechnism. The reaction kinetics features of sulfide ores-explosives and the development law of microscopic structures and chemical compositions are explored in the whole reacion process. The mathematical model with parameters coupling is constructed to depict the evolution of spontaneous detonation; the corresponding distribution laws of temperature, gas concentration, and hot spot are simulated by numerical analysis. The coupling effects of main factors which affect the reaction of sulfide ores-explosives are explored, and a new discriminant rule is established to assess the spontaneous detonation risk. The microscopic mechanism of several typical retarding materials inhibting the reaction of sulfide ores-explosives is revealed, and the effective inhibitor is prepared. This study aims to reveal the causing and retarding mechanism for spontaneous detonation caused by sulfide ores-explosives with parameters coupling from the macroscopic and microscopic views. The research results can provide some theory basis for preventing and controlling the similar spontaneous detonation accidents availably.