Abstract
ABSTRACTThe melting characteristics of iron ore plays an important role in the process of sintering and mineralization. The softening and melting process of Meishan concentrate, the main mineral in the sintering of Meishan Iron and Steel Company, and four typical imported iron ores were observed through a visual micro-sintering test device. The results show that the Meishan concentrate has a relatively gentle liquid-phase velocity, good liquid-phase temperature control property, and relatively good safety. In addition, with the increase in alkalinity, its melting characteristics become worse. When combined with OA, its melting characteristics became worse, and with OD ore, its melting characteristics had improved in our study. Therefore, based on the principle of optimizing the complementary ore blending, in order to ensure the good temperature control and safety of the Meishan concentrate in the liquid phase of the sintering process, the appropriate sinter basicity and the appropriate type of iron ores should be selected.
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