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结合鞍钢实际,探讨了澳大利亚卡拉拉铁精矿应用于鞍钢球团生产的可行性。结果表明:卡拉拉精矿可用于鞍钢球团生产,适宜的配矿方案为75%卡拉拉精矿配加25%精矿A,最佳焙烧制度为:预热温度950℃、预热时间8 min,焙烧温度1 250℃、焙烧时间10 min。综合考虑卡拉拉精矿的特性和鞍钢球团生产工艺条件,卡拉拉精矿配比可以提高到90%。
Combined with the actual situation of Ansteel, the feasibility of using Carrara iron ore concentrate in Angang pellet production was discussed. The results show that Carrara concentrate can be used for the production of Ansteel pellets. The suitable ore blending program is 75% Carrara concentrate with 25% concentrate A, the best roasting system is: preheating temperature 950 ℃, preheating time 8 min, calcination temperature 1 250 ℃, calcination time 10 min. Considering the characteristics of Carrara concentrate and the production conditions of Ansteel pellets, the ratio of Carrara concentrate can be increased to 90%.