MULTI-STAGE SUSPENSION MAGNETIZING ROASTING-MAGNETIC SEPARATION SYSTEM DEVICE AND METHOD FOR REFRACTORY IRON ORE
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United States of America Patent
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Issued Date -
Dec 20, 2018
app pub date -
May 29, 2018
filing date -
May 29, 2018
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Abstract
The invention discloses a multi-stage suspension magnetizing roasting-magnetic separation system and method for refractory iron ore, which belongs to the field of mineral processing technology. This system comprises multistage suspension preheater, multistage suspension oxidizer, multistage suspension redactor, on-line grade analyzer, ore-like splitter, magnetic separator, dust remover, roots blower and other components and connection modes. The refractory iron ore treated by the present method can be produced to homogeneous magnetite or maghemite accurately, and through magnetic separation, on-line grade analyzer detection and ore-like splitter, the concentrate powder which reach the set grade can be obtained, and the unqualified ore powder enters the next stage of oxidation-reduction-magnetic separation-split treatment. Through the present system and method, products with different roasting quality can be obtained, and can avoid the phenomenon of over burning or under burning occurring in the past process and equipment.
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