Experiment on Influence of FeO on Sinter Property Under High Basicity Condition
JIANG Dajun1,HE Muguang1,Gan Qin2,He Qun2
1.Ironmaking Plant of Panzhihua Iron and Steel Co., Panzhihua 617024, Sichuan, China; 2.Academe of Panzhihua Iron and Steel Co., Panzhihua 617022, Sichuan, China;
Abstract：FeO is sinter main composition that affects importantly strength and metallurgy properties. As low FeO sintering is being practiced widely, improving reducibility（RI) but not debasing strength is the key for studying FeO. Experiment research on FeO affecting sinter property and FeOs’ influence factors have been accomplished under high basicity about 2.5 condition in Pangang. The result indicates that strength， utilization coefficient and finished product rate all rise， and solid fuel consumption rise like to linear trend along with FeO rising, but after FeO attaining certain value, the indexes achieve maximum which have typical secondary curve characteristic. Along with the FeO rising, reducibility（RI) become bad， low temperature breakdown index improve. Controling FeO at 7.248.44% can give attention to indexes such as produce quality, consumption, metallurgical property in the best scope. Under fixing fuel proportioning condition, any one factor rising of basicity, mixture moisture, SiO2, Al2O3 and return fines will cause FeO to descend, then affects production technique index, so amount of adding carbon need to be increased properly.
