Development of a method for evaluating raw materials for use in iron ore sinter in terms of lime assimilation (original) (raw)

2014, Journal of The South African Institute of Mining and Metallurgy

It is important to determine whether iron ore used as feed to a sinter plant will produce a sinter suitable for use in a blast furnace. The feed to the blast furnace should be permeable (slightly porous, but not too porous since this could have an adverse effect on sinter properties) and have a high strength. A few standard tests are available to evaluate raw materials for use in the sinter process. The current method used can be difficult to interpret, time-consuming, and provides mostly limited information. A new test method, which allows calculation of the reactivity of iron ore with lime with increasing temperatures, was investigated. The new method should be easy to implement, reproducible, quick, and give valid results.

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