Influence of Mongolian Iron Concentrate Proportion on Roasting Characteristics

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Abstract:

Mongolia ore is introduced in order to reduce pellet production costs in Baotou steel because of the increasing prices of iron concentrate year by year. But the production experience for pellets containing Mongolian ore is in short, and the basic characteristics of the pellets need to be analyzed. Previous analysis show that the particle size of Mongolia concentrate is relatively small, which could not be used alone but could be used with coarse grain size home-made concentrate [1,2]. The ballability index of Mongolia ore concentrate is 0.35. The Crystal stock characteristics of Mongolia mine is poor, which lead to the average strength of the pellets drop to 942.7N. With home-made concentrate mixed with Mongolian mine ratio increases, the intensity of the crystal stock also shows a downward trend, while the ratio more than 65% of Mongolia mine later, even crystal stock level dropped significantly.

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40-43

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April 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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