Stand for drying steel-ladle linings

Metallurgist ◽  
1983 ◽  
Vol 27 (2) ◽  
pp. 57-59
Author(s):  
L. I. Alekseev ◽  
L. B. Abakulova ◽  
B. S. Glazyrin ◽  
M. V. Krylova
Keyword(s):  
Refractories ◽  
1971 ◽  
Vol 12 (3-4) ◽  
pp. 227-230
Author(s):  
V. P. Belyaev ◽  
Yu. V. Afanas'ev ◽  
Yu. A. Polonskii ◽  
D. I. Smirnova ◽  
V. I. Pavin ◽  
...  

Metallurgist ◽  
1978 ◽  
Vol 22 (6) ◽  
pp. 387-389
Author(s):  
Yu. A. Polonskii ◽  
L. M. Demidenko ◽  
B. A. Velikin ◽  
I. A. Gol'dberg ◽  
P. I. Matsak ◽  
...  
Keyword(s):  

Metallurgist ◽  
1982 ◽  
Vol 26 (11) ◽  
pp. 406-407
Author(s):  
V. P. Shevchenko ◽  
V. A. Butkov ◽  
S. N. Vislobokov ◽  
E. M. Braverman ◽  
M. P. Kisenko
Keyword(s):  

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1082
Author(s):  
Antonio Urióstegui-Hernández ◽  
Pedro Garnica-González ◽  
José Ángel Ramos-Banderas ◽  
Constantin Alberto Hernández-Bocanegra ◽  
Gildardo Solorio-Díaz

In this work, the fluid dynamic and thermal behavior of steel was analyzed during argon gas stirring in a 140-t refining ladle. The Eulerian multiphase mathematical model was used in conjunction with the discrete ordinates (DO) thermal radiation model in a steel-slag-argon system. The model was validated by particle image velocimetry (PIV) and the analysis of the opening of the oil layer in a physical scale model. The effect of Al2O3 and Mg-C as a refractory in the walls was studied, and the Ranz-Marshall and Tomiyama models were compared to determine the heat exchange coefficient. The results indicated that there were no significant differences between these heat exchange models; likewise, the radiation heat transfer model adequately simulated the thermal behavior according to plant measurements, finding a thermal homogenization time of the steel of 2.5 min for a gas flow of 0.45 Nm3·min−1. Finally, both types of refractory kept the temperature of the steel within the ranges recommended in the plant; however, the use of Al2O3 had better heat retention, which would favor refining operations.


Author(s):  
A. Bhansali ◽  
J. Godinez ◽  
X. Guo ◽  
H. Oltmann ◽  
E. Pretorius ◽  
...  

2016 ◽  
Vol 44 ◽  
pp. 02014
Author(s):  
Bang Fu Huang ◽  
Zhi Wei Ma ◽  
Nai Yuan Tian ◽  
Zhe Shi ◽  
Xiao Lei Zhou ◽  
...  

Author(s):  
Adán Ramirez-Lopez ◽  
Omar Davila-Maldonado ◽  
Alfronso Nájera-Bastida ◽  
Rodolfo Morales ◽  
Jafeth Rodríguez-Ávila ◽  
...  

Steel is one of the essential materials in the world's civilization. It is essential to produce many products such as pipelines, mechanical elements in machines, vehicles, profiles, and beam sections for buildings in many industries. Until the '50s of the 20th century, steel products required a complex process known as ingot casting; for years, steelmakers focused on developing and simplifying this process. The result was the con-tinuous casting process (CCP); it is the most productive method to produce steel. The CCP allows producing significant volumes of steel sections without interruption and is more productive than the formal ingot casting process. The CCP begins by transferring the liquid steel from the steel-ladle to a tundish. This tundish or vessel distributes the liquid steel, by flowing through its volume, to one or more strands having wa-ter-cooled copper molds. The mold is the primary cooling system, PCS, solidifying a steel shell to withstand a liquid core and its friction forces with the mold wall. Further down the mold, the rolls drive the steel section in the SCS. Here the steel section is cooled, solidifying the remaining liquid core, by sprays placed in every cooling segment all around the billet and along the curved section of the machine. Finally, the steel strand goes towards a horizontal-straight free-spray zone, losing heat by radiation mechanism, where the billet cools down further to total solidification. A moving torch cutting-scissor splits the billet to the desired length at the end of this heat-radiant zone.


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