Abstract：For one kind of super fine magnetite concentrate with about 88% of particle size less than 0.044mm, its ballability was middle classs because of plate and plate-like structure. However, particle morphology of concentrates was changed and balling performance was improved after concentrates pretreated by HPRG, which resulted in the decrease of the bentonite addition rate and breakdown temperature of green pellets. The results show that the compression strength of finished pellets increases markedly after pretreated by HPRG, but no obvious effect is observed on the changes of compression strength of preheated pellets. The whole experiment indicates that the balling performance can be improved and compression strength of finished pellets can be increased after the super fine magnetite concentrate pretreated by HPRG.
收稿日期: 2011-12-16
出版日期: 2012-10-17
引用本文:
范建军,杨礼元. 高压辊磨预处理对超细粒度磁铁精矿粉球团性能的影响[J]. 钢铁, 2012, 47(9): 19-24.
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