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Faculty of Metallurgy and Technology Travnička cesta 1, Zenica, University of Zenica , Zenica , Bosnia and Herzegovina
Faculty of Metallurgy and Technology Travnička cesta 1, Zenica, University of Zenica , Zenica , Bosnia and Herzegovina
ArcelorMittal d.o.o Zenica , Zenica , Bosnia and Herzegovina
ArcelorMittal d.o.o Zenica , zenica , Bosnia and Herzegovina
Metallurgical coke, as a fuel and a reducing agent, also allows for the gas to go through a charge in the blast furnace. The coke must have a strength, porosity, reactivity and a uniform granulation, because reaction of CO2 at high temperatures in the furnace. There are various mathematical models for the optimization of coal blend, which allow the forecasting of mechanical properties of coke in cold conditions as well as at high temperatures and presence of blast furnace gas.
The so-called Modified Basicity Index (MBI) model is used for forecasting the following coke quality parameters: CRI (coke reactivity index) and CSR (coke strength after reaction with CO2), based on the content of volatile matters and ash in coal, as well as the chemical composition of coal ash.
In this paper will be given the calculation of coke quality parameters based on the mathematical model MBI.
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