Abstract��To improve the ballability of ultrafine magnetite, basic properties and static ballability index of western Australian magnetite concentrate (A) with adding different contents of domestic magnetite concentrate (B) or Brazilian hematite concentrate (C) were studied by pelletizing experiments. The results show that the ballability of the mixed concentrates is much higher than that of the iron concentrate A. The drop numbers of green pellets and the shock temperatures of iron concentrate A are only 3��2times/(0��5m) and 470��, respectively. The drop numbers of green pellets are over 4times/(0��5m) and the shock temperatures are higher than 500�� when the addition content of iron concentrate B is 20mass% or it of iron concentrate C is 10mass%, respectively. Optimization of ore blends is one of the effective ways to improve the pelletization of western Australian ultrafine magnetite concentrate.
����죬���νܣ��˽�����ϴϣ������. ���Ƴ�ϸ������������ܵ�ʵ���о�[J]. �й������ڿ���, 2017, 29(9): 704-710.
ZHU De- qing��XU Meng- jie��PAN Jian��YANG Cong- cong��TIAN Hong- yu. Experimental research to improve ballability of ultrafine concentrate. Chinese Journal of Iron and Steel, 2017, 29(9): 704-710.
Yang CC, Zhu DQ, Pan J, et al.Oxidation and induration characteristics of pellets made from western Australian ultrafine magnetite concentrates and its utilization strategy[J].Journal of Iron and Steel Research, International, 2016, 23(9):924-932
Hellmer S, Ekstrand J.The iron ore world market in the early twenty-first century��the impact of the increasing Chinese dominance[J].Mineral Economics, 2013, 25(2):89-95
Yang CC, Zhu DQ, Pan J, et al.Oxidation and induration characteristics of pellets made from western Australian ultrafine magnetite concentrates and its utilization strategy[J].Journal of Iron and Steel Research, International, 2016, 23(9):924-932
2017, Vol. 29 
