Method and apparatus for grinding iron ore or iron ore...

Details Method and apparatus for grinding iron ore or iron ore... Method and apparatus for grinding iron ore or iron ore...

B - Operations, Transporting

02

C

B02C 23/12 (2006.01) B02C 4/02 (2006.01) B02C 4/28 (2006.01) C22B 1/00 (2006.01)

Patent

CA 2476579

The invention relates to a method and apparatus for grinding iron ore or iron ore concentrate, the material being ground in circulation in a material bed roll mill, one fraction of the iron ore or iron ore concentrate ground in the material bed roll mill being recirculated to the material bed roll mill and the other fraction of the iron ore or iron ore concentrate being classified into oversize material and fines, the oversize material being returned to the material bed roll mill.

Cette invention se rapporte à une méthode et à un appareillage de broyage de minerai de fer ou de concentré de minerai de fer. Le matériau est broyé en circulation dans un concasseur à rouleau, une fraction du minerai de fer ou du concentré de minerai de fer broyé dans le concasseur à rouleau étant remis en circulation sur le concasseur à rouleau. L'autre fraction du minerai de fer ou du concentré de minerai de fer est classée en matériaux surdimensionnés et en minerai pulvérulent, le matériau surdimensionné étant renvoyé au concasseur de minerai.

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