高炉内焦炭溶损反应及其影响因素与焦炭消耗

The thermal property of coke is one of the most important indexes for blast furnace process. The coke loss reaction behavior and its deterioration affect coke consumption of the blast furnace. The rate of coke solution loss and the degree of deterioration of the coke depend on the reduction and heat exchange of the blast furnace and the composition and structure of the coke. At present, the research on the coke solution loss reaction is not enough, so the following issue will be study in this project: (1) the coupling effect between different reducibility iron ores and different reactive cokes, and the relationship between the coupling effect and the reduction and heat exchange of the blast furnace process; (2) the experimental methods for simulating the coupling effect between the reduction of iron ore and the solution loss of coke in blast furnace, and the deterioration behavior of coke in the blast furnace; (3) The relationship between the coupling effect of coke and iron ore and coke consumption under different blast furnace process and operating conditions. The consumption of coke in blast furnace and its influencing factors will be clarified in this project.

焦炭的热性质是高炉炼铁最为关注的指标。焦炭溶损反应行为和焦炭的劣化影响了高炉焦炭的消耗。高炉内焦炭溶损率和溶损劣化程度取决于高炉还原、热交换和焦炭本身的组成及结构。然而目前对焦炭溶损反应行为的研究不够深入。项目拟通过研究：（1）不同还原性矿石和不同反应性焦炭之间的耦合性以及该耦合性与高炉还原和热交换的关系；（2）模拟高炉内铁矿石还原和焦炭溶损耦合关系的实验方法与高炉内焦炭溶损劣化行为；（3）不同冶炼条件和操作制度下焦炭溶损反应与矿石还原的耦合性与高炉内焦炭消耗的关系，来阐明高炉内焦炭消耗及影响因素。