ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Influence of the Nuclei Particle Properties on Granulability of Marra Mamba Iron Ore by High Speed Agitating Mixer
Toshihide MATSUMURAKazuya MIYAGAWAYoshiaki YAMAGATA
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JOURNALS FREE ACCESS

2005 Volume 45 Issue 4 Pages 485-491

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Abstract

The newly developed brand Marra Mamba ore from Australia has a comparatively high water absorptivity, and since many fine ore is contained, if it is used as a raw material of sintered ore, it will cause the fall of permeability, and the productivity fall of a product sinter by the fall of the granulability. By blending nuclei particles with this Marra Mamba ore, the granulability and the permeability have improved sharply by processing them in a high-speed agitating mixer. This that point, about 25 mass% is suitable for nuclei particle mixture ratio to a high-speed agitated material.
Moreover, the granulability was improved by using the ore containing much 1-3 mm particles. As for this, it is considered that the granulation of a middle size ore domain is accelerated, because of the consistency of the particle size composition of the material processed and pot characteristic of high-speed agitating mixer.

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© 2005 by The Iron and Steel Institute of Japan
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