C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 26/00 (2006.01)
Patent
CA 2601597
The invention is directed to a material for coating iron ore pelletizing disks and drums and a constructive arrangement for pelletizing disks and drums that is comprised of a mixture of binders with ores (that may or not be ground) of the group consisting of iron, manganese or others, the inclusion of fluxes being also provided. The bottom (1) of the disk or drum (5) is coated with a cold cure coating material, vegetal oils, minerals and/or gel-forming products in order to form a bottom layer (2) that may or not be on the surface, and polyethylene plates (7) to aid in the separation of the fines from the pellets (6) can also be incorporated into the inner perimetral edge (6) of said pelletizing disk or drum (5).
L~invention concerne un matériau de revêtement des disques et des tambours de bouletage du minerai de fer et un agencement constructif pour les disques et les tambours de bouletage. Cet agencement comporte un mélange de liants avec les minerais (qui peuvent venir du sol ou non) qui sont choisis parmi le groupe comprenant le fer, le manganèse ou autres ; l~invention décrit également l~inclusion de fondants. Le bas (1) du disque ou du tambour (5) est revêtu avec un matériau de revêtement durci à froid, des huiles végétales, des minéraux et/ou des produits gélifiants afin de former une couche inférieure (2) qui peut être ou non localisée à la surface, et des plaques en polyéthylène (7) afin de faciliter la séparation des minerais pulvérulents et des boulettes (6) peuvent également être incorporées à la périphérie interne (6) dudit disque ou tambour (5) de bouletage.
Bravim Alessandro
Costa Fabiano Florencio
Herzog Maykon Lyra
Jesus Reinaldo Walmir de
Max Armando Mauricio
Borden Ladner Gervais Llp
Companhia Vale Do Rio Doce
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