基于微观技术的镁质熔剂性球团矿相研究

Study on Magnesite Flux Pellet Based on Micro-technology

将含钙、镁熔剂应用于镁质熔剂性球团的生产中可改善其冶金性能,优化炉料结构,这也成为提高产能、扩大产量的重要手段。为了进一步研究镁质熔剂性球团矿相调控机制,从微观结构出发,分析碱度、镁含量对矿相衍变规律的影响,阐述Ca、Mg的分布规律及迁移过程,并结合XRD、SEM、能谱等微观技术揭示镁质熔剂性球团的固结机理。结果表明:当碱度控制在1.0且镁含量控制在1.0%的球团矿,球团矿强度相对较好,且满足生产要求。

Applying Ca and Mg to the production of magnesium flux pellets can improve its metallurgical properties and optimize the charge structure, which has become an important means of increasing productivity and expanding output. To study the regulation mechanism of magnesium flux pellets furthermore, the influence of alkalinity and Mg content on the law of mineralization was analyzed from the microstructure, the migration process and distribution of Ca,Mg was described, and the consolidation mechanism of magnesium flux pellets was revealed by adopting micro-technology of XRD and SEM. The conclusion is that when the alkalinity is controlled at 1.0 and the magnesium content is controlled at 1.0%,the strength of the pellets is relatively good, meeting the production requirements.