【摘要】 在固定碱度和固定CaO质量分数条件下分别对邯钢5种常用铁矿粉及3种低价小品种铁矿粉的液相流动性能进行了测定，对比分析了两种方法对铁矿粉液相流动性检测结果的影响，提出一种基于主体原料构成的新品种铁矿粉烧结性能评价方法并进行了烧结杯试验验证。在固定碱度条件下测得的铁矿粉的液相流动性指数与其SiO₂含量的相关性最高，是因为该方法受加入的CaO数量的影响过大，不能完全反映铁矿粉的烧结性能；固定CaO质量分数条件下对铁矿粉流动性能的评价更符合烧结杯试验结论。基于主体原料构成的新品种铁矿粉烧结性能评价方法可以定量地反映新品种铁矿粉的应用对烧结矿强度与成品率的影响关系，是一种可行的新品种铁矿粉烧结性能评价方法。更多还原

【Abstract】 The liquid phase fluidity of five commonly used iron ore powders and three low-priced small variety of iron ore powders from Handan Iron and Steel Company were measured under fixed alkalinity and fixed CaO mass fraction conditions. The influence of the two methods on the liquid phase fluidity detection results of iron ore powders was compared and analyzed. A new method for evaluating the sintering performance of iron ore powders based on the composition of the main raw materials was proposed and verified by sintering cup tests. The results show that the liquid phase fluidity index of iron ore powder measured under fixed alkalinity conditions has the highest correlation with its SiO₂ content. That’s because the method is greatly affected by the amount of CaO added and cannot fully reflect the sintering performance of iron ore powder. The evaluation of the flowability of iron ore powder with a fixed CaO mass fraction is more in line with the results of the sintering cup test; The evaluation method based on the composition of the main raw materials can quantitatively reflect the impact of the application of new varieties of iron ore powder on the strength and yield rate of sinter. It is a feasible method for evaluating the sintering performance of new varieties of iron ore powder.更多还原