Abstract： Fluxed iron ore pellets， which have a fine metallurgical performance， are the high quality burden for blast furnace ironmaking. In order to investigate the effect of basicity on the properties of green pellets， the hematite concentrated combined limestone powder to adjust the basicity of pellets， then the pelletizing and the drying characteristics of green pellets were carried out. The results show that the drop strength of green pellets is increasing with the increase of basicity， and the crushing strength and drying rate of green pellets have no obvious changes. Meanwhile， the optimum proportioning of bentonite decreased slightly and the decrepitation temperature increased obviously with increasing the basicity of pellets. Compared with the basic experiment， when the basicity was more than 0.6， the optimum proportioning of bentonite decreased to 1.1% from 1.2% and the decrepitation temperature increased by over 50 ℃.
Dwarapudi S, Ghosh T K, Shankar A, et al.Effect of pellet basicity and MgO content on the quality and microstructure of hematite pellets[J].International Journal of Mineral Processing, 2011, 99(1):43-53
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Dwarapudi S, Ghosh T K, Shankar A, et al.Effect of pellet basicity and MgO content on the quality and microstructure of hematite pellets[J].International Journal of Mineral Processing, 2011, 99(1):43-53
2019, Vol. 54 
