Optimization Studies of Hot Metal Desulphurized and Basic Oxygen Furnace Slags in Sinter Making at JSW Steel Limited

Abstract

-A large amount of various slags are being generated from steel melting process in integrated steel plants. Disposal of large quantities of slag becomes a big environmental concern. Slags generation from Steel Melting shop such as LD and HMDS Slag these slag has free CaO, which can replace some amount of flux in Iron Making burden. But due to high Phosphorous content in LD slag and high Sulphur in HMDS, these slags are not directly used in sinter making. In agglomeration these slags usage could be the ideal approach to maximize its use in sinter feed and thereby increase in the productivity and quality of the sinter plant which will reduce the cost of production due to available free Cao and Fe %. The process of micro-pelletisation followed by sintering may be considered for their utilization in the steel plants.