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利用矿物质定量热分析理论对三种典型煤样灰熔融过程进行了详细分析,借助化学反应动力学相关概念,计算了灰样熔融反应动力学参数,结果表明:灰样熔融过程呈明显的三阶段反应过程,即初始熔融阶段、矿物共熔阶段以及熔融末期;熔融初始阶段反应活化能均大于后面两个阶段,矿物共熔过程活化能较初始阶段明显下降;在理论上证明了灰熔融逐渐加剧的过程。
Using the theory of quantitative heat analysis of minerals, the ash melting process of three typical coal samples was analyzed in detail, and the kinetic parameters of the melting reaction of ash samples were calculated by the related concepts of chemical reaction kinetics. The results showed that the melting process of ash samples was obviously three The initial stage of reaction, ie, the initial melting stage, the mineral eutectic stage and the melting end stage, the activation energy of reaction in the initial stage of melting are both greater than the latter two stages, and the activation energy of the eutectic process decreases obviously compared with the initial stage. Exacerbated the process.