高速撹拌ミキサによるマラマンバ系鉱石の造粒におよぼす核粒子特性の影響(鉄鉱石特性および原料造粒設計,焼結その1,<特集号>製銑プロセスの環境調和・資源対応力強化を目指して)

概要

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The newly developed brand Marra Mamba ore from Australia has a comparatively high water absorptivity, and since a large amount of fine ore is contained, if it is used as a raw material of sintered ore, it will cause the deterioration of the permeability of the ore bed, and the productivity fall of a sintered ore by the fall of the granulability. By blending nuclei particles with this Marra Mamba ore, the granulability and the permeability of the ore bed have improved sharply by processing them in a high-speed agitating mixer. It was considered that the ratio about 25mass% was suitable for nuclei particle mixture ratio to a high-speed agitated material. Moreover, the granulability was improved by using the ore of 1-3mm particles as nuclei. As for this, it is considered that the granulation of a middle size ore is accelerated, because of the consistency of the particle size composition of the material and proprrties of high-speed agitating mixer.
社団法人日本鉄鋼協会の論文
2006-12-01