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Journal of the Southern African Institute of Mining and Metallurgy

versão On-line ISSN 2411-9717
versão impressa ISSN 0038-223X


STJERNBERG, J.; ISAKSSON, O.  e  ION, J.C.. The grate-kiln induration machine - history, advantages, and drawbacks, and outline for the future. J. S. Afr. Inst. Min. Metall. [online]. 2015, vol.115, n.2, pp.137-144. ISSN 2411-9717.

Iron ore pellets are a preferred feedstock for ironmaking. One method used for pelletizing is the grate-kiln process, first established in 1960. During the past decade, the establishment of new grate-kiln plants has increased rapidly, especially in China, and new constructors of pellet plants have started to operate in the market. It is well known that the grate-kiln method yields a superior and more consistent pellet quality compared with the straight-grate process. However, certain issues exist with the grate-kiln plant, which are discussed here, together with proposed practical solutions.

Palavras-chave : grate-kiln; pelletizing; iron ore.

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