Sintering facilitates feed of iron ore fines in blast furnace, blended with fluxes and coking coal / coke. The depletion of iron ore quality poses new challenges to steel makers. There is a need to find alternate solutions maintaining optimal composition and metallurgical properties of the sinter to enable the production of high-quality hot metal and finally steel.
We at Carmeuse developed expertise in offering customized solutions based on numerous sets of experiments related to the sintering process. Sintering of iron ore has always been a potential process to improve emissions and reduce costs. Carmeuse research on lime characteristics for sinter enabled to offer engineered products and customized services for improving quality of the sinter, keeping focus on cost savings, and reducing environmental impact of the sintering process.
Quality limestone or dolostone is also used in pelletization to adjust the basicity and to contribute to pellets hardness. Lime can also be used and allows to limit the use of bentonite which contributes negatively on the basicity.