Effect of fluxes on high iron and low silica sintering

来源期刊：中南大学学报(英文版)2003年第3期

论文作者：朱德庆 张克诚 潘建 范晓慧 胡友名 John Clout

文章页码：177 - 182

Key words：high iron and low silica sintering; mineralogy; permeability; burnt lime; serpentine

Abstract: Abstract:Burnt lime and serpentine were incorporated into the sinter mix to improve high iron and low silica sintering. Optimization of how to use burnt lime including dosage of burnt lime,moisture of sinter mix, hydrating and granulation time was performed. Evatuations of sinter characteristics including sinter mineralogy, reducrbility, low temperature reduction degradation, softening and melting down properties were carried out. Compared with the re-sults of traditional process in base case, the tumbiing index ( TI) is increased by l. 53%- 2. 33% through proportioning high ratio of burnt lime or adding serpentine in the sinter mix. It is shown that effective granulation, better permeability and improved high temperature reactivity in the sinter bed are achieved, resulting in an increase in 3.13 %-5.10% calcium ferrite occurring in acicular and columnar shape and decrease in glass phase, and with the reduc-ibility index(RI) being increased by l.65 %- 3. 25 %.