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Metallurgy of Iron and Steelmaking

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  Teknik Metalurgi   07. Mass and Heat Balance in Ironmaking Metallurgy of Iron and Steelmaking (MG-4113)   Dr.-Ing. Zulfiadi Zulhan Department of Metallurgical Engineering Institute of Technology Bandung Teknik Metalurgi  Teknik Metalurgi MG-4113 Metallurgy of Iron and Steelmaking Dr.-Ing. Zulfiadi Zulhan 2009 Course Content 1.Introduction 2.Burden materials preparation for ironmaking 3.Ironmaking in blast furnace 4.Blast furnace technology 5.Smelting reduction (COREX, HISMELT, DIOS, etc.) 6.Direct reduction (HyL I, HyL III, MIDREX, SL/RN, CIRCORED, etc.) 7.Mass and Heat balance in ironmaking 8.Midterm Examination 9.Hot metal desulphurization & Steelmaking based on hot metal (de-C, de-Si, De-P, Mn-removal, LD-Converter / BOF) 10.Steelmaking based on scrap and sponge iron (SIEMENS MARTINS, EAF) 11.Secondary metallurgy (Deoxidation, Desulphurization, Alloying, LF, CHF) 12.Vacuum metallurgy (RH, VD) 13.Stainless steelmaking (AOD, VOD) 14.Continous casting (CCM) 15.Final Examination  Teknik Metalurgi MG-4113 Metallurgy of Iron and Steelmaking Dr.-Ing. Zulfiadi Zulhan 2009 Iron and Steelmaking Route Scrap Primary Steelmaking Ironmaking Secondary Steelmaking Blast furnace COREX Plant Direct Reduction Plant HM de-S EAF BOF LF VD/ VD-OB RH / RH-TCOB CCM LT Casting Ingot  Teknik Metalurgi MG-4113 Metallurgy of Iron and Steelmaking Dr.-Ing. Zulfiadi Zulhan 2009 Case 1 (mass balance)  An iron blast furnace produced 2400 tons of pig iron per day. The analysis of pig iron was 92.9% Fe, 4%C, 1.38% Si, 0.9% P, 0.8% Mn and 0.02% S. The iron ore charged into the furnace contained 72.2% Fe 2 O 3 , 9.6% SiO 2 , 7.8% Al 2 O 3 , 6.2%H 2 O, 3.1% MnO and 1.1%P 2 O 5 . The coke used contained 89%C, 8% SiO 2 , 2%Al 2 O 3  and 1% FeS. Lime stone flux was 96.5% CaCO 3  and 3.5%SiO 2 . The input rates of coke and limestone were 1800 and 1200 tons per day, respectively. 98.5% of all the iron entering the furnace was accounted for by pig iron. Determine: 1.Input rate of ore 2.Output rate and composition of slag S: Y.K. Rao, Stoichiometry and Thermodynamics of metallurgical processes, Cambridge University Press, 1985
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