Mechanism of Strength Improvement of Magnetite Pellet by Adding Boron-bearing Iron Concentrate  

作　　者：Hong-wei GUO Jun-li BAI Jian-liang ZHANG Hong-ge LI 

机构地区：[1]School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing [2]State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing

出　　处：《Journal of Iron and Steel Research International》2014年第1期9-15,共7页

基　　金：Item Sponsored by National Natural Science Foundation of China(51204013);Fundamental Research Funds for Central Universities of China(FRF-TP-12-020A)

摘　　要：The mechanism of improving compressive strength of magnetite pellet by adding boron-bearing iron concentrate was studied. Boron-bearing iron concentrate and magnetite were mixed, pelletized and roasted under differ ent roasting conditions. Then, compressive strength of pellets was tested, and polished sections of the roasted pellets were analyzed from the perspective of mineralogy. Finally, the effects of different proportions, roasting temperatures and roasting time of boron-bearing iron concentrate on the compressive strength of magnetite pellets were investigated and explained.The mechanism of improving compressive strength of magnetite pellet by adding boron-bearing iron concentrate was studied. Boron-bearing iron concentrate and magnetite were mixed, pelletized and roasted under differ ent roasting conditions. Then, compressive strength of pellets was tested, and polished sections of the roasted pellets were analyzed from the perspective of mineralogy. Finally, the effects of different proportions, roasting temperatures and roasting time of boron-bearing iron concentrate on the compressive strength of magnetite pellets were investigated and explained.

关 键 词：boron-bearing iron concentrate MAGNETITE pellet compressive strength roasting condition PROPORTION 

分 类 号：TF521[冶金工程—钢铁冶金]