Process Improvements for Direct Reduced Iron Melting in the Electric Arc Furnace with Emphasis on Slag Operation

被引：26
|
作者：
Kirschen, Marcus [1 ]
Hay, Thomas [2 ]
Echterhof, Thomas [2 ]
机构：
[1] Univ Bayreuth, Thermal Proc Engn, Univ Str 30, D-94557 Bayreuth, Germany
[2] Rhein Westfal TH Aachen, Dept Ind Furnaces & Heat Engn, D-52074 Aachen, Germany
来源：
PROCESSES | 2021年 / 9卷 / 02期
关键词：
electric arc furnace; direct reduced iron; process model; process improvement;
D O I：
10.3390/pr9020402
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Steelmaking based on direct reduced iron (DRI, and its compacted derivative hot briquetted iron, HBI) is an anticipated important global alternative to current steel production based on FeOx reduction in blast furnaces due to its lower specific CO2 emission. The majority of DRI is melted and refined in the electric arc furnace with different process conditions compared to the melting of steel scrap due to its raw material composition being rather different. We provide data and analysis of slag composition of DRI charges vs. steel scrap charges for 16 industrial electric arc furnaces (EAFs). Suggestions for optimized slag operation and resulting process improvements of DRI melting in the EAF are given. A dynamic mass and energy model of the DRI melting in the EAF is introduced to illustrate the implications of the adapted slag operation on the EAF process with DRI charges.
引用
收藏
页码：1 / 10
页数：10
相关论文
共 50 条
  • [1] Process dynamics of electric arc furnace during direct reduced iron melting
    R. D. Morales
    A. N. Conejo
    H. H. Rodriguez
    [J]. Metallurgical and Materials Transactions B, 2002, 33 : 187 - 199
  • [2] Process dynamics of electric arc furnace during direct reduced iron melting
    Morales, RD
    Conejo, AN
    Rodríguez, HH
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2002, 33 (02): : 187 - 199
  • [3] Model for melting of direct reduced iron in electric arc furnace
    Sharma, MK
    Batra, NK
    [J]. TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, 1999, 52 (2-3): : 153 - 157
  • [4] MELTING RESULTS OF DIRECT REDUCED IRON IN ELECTRIC-ARC FURNACE AND PROPERTIES OF HOT BRIQUETTED IRON
    KANEKO, D
    DAVIES, MO
    TSUCHIYA, O
    SAKO, H
    [J]. TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1987, 73 (15): : 2116 - 2121
  • [5] Effect of Direct Reduced Iron (DRI) on Dephosphorization of Molten Steel by Electric Arc Furnace Slag
    Heo, Jung Ho
    Park, Joo Hyun
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2018, 49 (06): : 3381 - 3389
  • [6] ACTIVITY OF SILICA IN THE SLAG OF AN ELECTRIC-ARC FURNACE USING DIRECT REDUCED IRON FOR STEELMAKING
    MERAIKIB, M
    [J]. ISIJ INTERNATIONAL, 1995, 35 (07) : 845 - 850
  • [7] Effect of Direct Reduced Iron (DRI) on Dephosphorization of Molten Steel by Electric Arc Furnace Slag
    Jung Ho Heo
    Joo Hyun Park
    [J]. Metallurgical and Materials Transactions B, 2018, 49 : 3381 - 3389
  • [8] The Behavior of Direct Reduced Iron in the Electric Arc Furnace Hotspot
    Pfeiffer, Andreas
    Ernst, Daniel
    Zheng, Heng
    Wimmer, Gerald
    Schenk, Johannes
    [J]. METALS, 2023, 13 (05)
  • [9] UTILIZATION OF DIRECT REDUCED IRON IN AN ELECTRIC-ARC FURNACE
    KAY, LM
    RIGAUD, M
    MARQUIS, AH
    [J]. CANADIAN METALLURGICAL QUARTERLY, 1976, 15 (01) : 41 - 47
  • [10] PHOSPHOROUS BEHAVIOR IN ELECTRIC ARC FURNACE STEELMAKING WITH THE MELTING OF HIGH PHOSPHOROUS CONTENT DIRECT REDUCED IRON
    Hassan, A., I
    Kotelnikov, G., I
    Semin, A. E.
    Megahed, G. M.
    [J]. METAL 2015: 24TH INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS, 2015, : 73 - 79
12345