Abstract：Vanadium-titanium magnetite is characterized by high content of TiO2, low content of SiO2. Therefore, the tumbler strength and RDI of sinter ARE are poor. In order to ensure a sufficiently high sinter strength, high alkalinity or high basicity sinter must be considered to produce. For Chenggang Steel, because of shortages and high prices of acidic charge, sinter’s basicity is higher to the range of 2.0 to 2.3, and the quality of sinter is very difficult to improve. A new sintering process called iron ore composite agglomeration process was presented and discussed in detail the technical feasibility of the process. Sintering process parameters, sinter quality indicators and metallurgical properties was compared. Finally, the microstructure of composite lump ore was investigated. The results show the superiority of this new process.
2014, Vol. 49 
