Ironmaking and Steelmaking

COURSE LAYOUT

Week 1:Introduction: Various routes of modern steel making (BF-BOF, DRI-EAF, SR).Blast furnace Ironmaking: Shape of the furnace, Various reactions and zones in the blast Furnace Thermodynamics of Iron making, Direct & indirect reduction .Blast Furnace as an efficient counter current gas solid reactor and maximum carbon efficiency.Week 2:Overall heat and Material Balance in Blast Furnace.Rist Diagram based on oxygen balance,Rist Diagram based on heat & Material balance Week 3:Blast Furnace as a two stage reactor. Predictive model for coke rate in blast furnace.Week 4:Aerodynamics in Blast Furnace (pressure drop, fluidization, channeling, Flooding).
Week 5:Burden preparation (sintering, pelletization, coke making). Testing of raw materials Week 6:Burden distribution in Blast Furnace.Auxiliary injection, fuel efficiency and productivity in Blast furnace.Week 7:Thermodynamics of steelmaking. Introduction to LD steel making (process, emulsion, decarburization, catch carbon technique, impurity & slag evolution)Week 8:Hybrid steel making. Modern EAF/IF steel making.Secondary Steel making: Thermodynamics & kinetics of deoxidation
Week 9:Secondary steel making: Vacuum treatment of steel and processes, gas stirring.Week 10:Secondary Steel making: Ladle desulphurization, inclusion modification by calcium treatment. Inclusion control by optimizing upstream operating parameters.Week 11:Heat transfer and segregation during casting. Ingot casting, continuous casting, defects in steel. Week 12:Alternative routes of iron & steel making (Rotary kiln, Corex, Midrex)