Steel Ladle Slag Zone Lining Optimization Considering Irreversible Material Behavior
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in: Steel research international, Jahrgang 95.2024, Nr. 7, 2300557, 13.03.2024.
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
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TY - JOUR
T1 - Steel Ladle Slag Zone Lining Optimization Considering Irreversible Material Behavior
AU - Klopf, Maximilian
AU - Hou, Aidong
AU - Jin, Shengli
AU - Gruber, Dietmar
N1 - Publisher Copyright: © 2024 The Authors. Steel Research International published by Wiley-VCH GmbH.
PY - 2024/3/13
Y1 - 2024/3/13
N2 - The optimization of refractory linings is a complex task due to the many factors that influence the thermomechanical behavior. This study applies the multiparameter optimization method technique for order preference by similarity to the ideal solution to a commercially used slag zone lining of a secondary metallurgical steel ladle, considering the influence of different material models in a finite element (FE) simulation. The dataset is acquired by varying the working lining brick shape, initial expansion allowance (IEA), and isolation layer thickness. The maximum irreversible strain, joint opening at the hot face, and steel shell temperature are determined from the FE simulation results and used as the input values for the optimization. A larger circumferential brick dimension combined with low IEA is favorable for the von Mises creep model. The main contribution is from the IEA (98.53%). The optimized lining for the Drucker–Prager criterion has a brick with a small circumferential dimension and larger IEA. The main influencing factor is the brick shape (85.06%). The differences in the optimization results and factor contributions can be explained by the contribution of the constitutive models to the simulation results before and after the thermal shock.
AB - The optimization of refractory linings is a complex task due to the many factors that influence the thermomechanical behavior. This study applies the multiparameter optimization method technique for order preference by similarity to the ideal solution to a commercially used slag zone lining of a secondary metallurgical steel ladle, considering the influence of different material models in a finite element (FE) simulation. The dataset is acquired by varying the working lining brick shape, initial expansion allowance (IEA), and isolation layer thickness. The maximum irreversible strain, joint opening at the hot face, and steel shell temperature are determined from the FE simulation results and used as the input values for the optimization. A larger circumferential brick dimension combined with low IEA is favorable for the von Mises creep model. The main contribution is from the IEA (98.53%). The optimized lining for the Drucker–Prager criterion has a brick with a small circumferential dimension and larger IEA. The main influencing factor is the brick shape (85.06%). The differences in the optimization results and factor contributions can be explained by the contribution of the constitutive models to the simulation results before and after the thermal shock.
KW - lining optimization
KW - magnesia carbon refractory
KW - slag zone
KW - steel ladles
KW - technique for order preference by similarity to the ideal solution
UR - http://www.scopus.com/inward/record.url?scp=85187522733&partnerID=8YFLogxK
U2 - 10.1002/srin.202300557
DO - 10.1002/srin.202300557
M3 - Article
AN - SCOPUS:85187522733
VL - 95.2024
JO - Steel research international
JF - Steel research international
SN - 1611-3683
IS - 7
M1 - 2300557
ER -