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一、绪言近几年来由于炼铁事业飞跃的发展,对炼铁原料也有了更高的要求,而改善原料的重要措施之一就是生产高碱度的自熔性烧结矿。如所周知,高炉使用自熔性烧结矿可以大大地改善高炉的技术操作,因为不仅可以节省石灰石在高炉内分解所消耗的热量,并能使石灰石分布均匀,获得流动性较好的初成渣,稳定高炉炉况,降低焦比,提高高炉的生产率。而对于烧结,则由于石灰石的加入大大地提高了炉料的透气性,烧结的生产也强化了。本溪炼铁厂自从1952年即利用南芬富选粉(TFe—68％)和消石灰生产熔剂性烧结矿,碱度曾达到
I. INTRODUCTION Due to the rapid development of ironmaking business in recent years, higher requirements are also set for ironmaking raw materials. One of the important measures for improving raw materials is to produce high basicity self-fluxing sinter. As we all know, the use of self-fluxing sinter blast furnace can greatly improve the technical operation of the blast furnace, because not only can save limestone in the blast furnace decomposition of calories consumed, and can make the distribution of limestone, better fluidity of the initial slag , Stabilize the blast furnace condition, reduce the coke ratio and improve the productivity of the blast furnace. As for the sintering, the addition of limestone greatly improves the gas permeability of the charge and the production of the sinter is also strengthened. Benxi Ironworks has been producing flux sinter since 1952 using TFe-68% and hydrated lime,