scholarly journals Multiphase Flow Behavior in a Single-Strand Continuous Casting Tundish during Ladle Change

2020 ◽  
Vol 60 (3) ◽  
pp. 499-508 ◽  
Author(s):  
Haitao Ling ◽  
Rui Xu ◽  
Haijun Wang ◽  
Lizhong Chang ◽  
Shengtao Qiu
Keyword(s):  
Continuous Casting ◽  
Multiphase Flow ◽  
Flow Behavior ◽  
Single Strand ◽  
Continuous Casting Tundish

Comparison of Multiphase Flow in a Continuous Casting Tundish Using Two Types of Industrialized Ladle Shrouds

JOM ◽  
2018 ◽  
Vol 70 (12) ◽  
pp. 2886-2892 ◽  
Author(s):  
Jiangshan Zhang ◽  
Shufeng Yang ◽  
Yongfeng Chen ◽  
Zhixin Chen ◽  
Jingwei Zhao ◽  
...  
Keyword(s):  
Continuous Casting ◽  
Multiphase Flow ◽  
Continuous Casting Tundish

Effects of Salt Tracer Amount, Concentration and Kind on the Fluid Flow Behavior in a Hydrodynamic Model of Continuous Casting Tundish

2012 ◽  
Vol 83 (12) ◽  
pp. 1141-1151 ◽  
Author(s):  
Chao Chen ◽  
Guoguang Cheng ◽  
Haibo Sun ◽  
Zibing Hou ◽  
Xinchao Wang ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Continuous Casting ◽  
Hydrodynamic Model ◽  
Flow Behavior ◽  
Continuous Casting Tundish ◽  
Tracer Amount

Investigation on the control of multiphase flow behavior in a continuous casting tundish during ladle change

2020 ◽  
Vol 117 (6) ◽  
pp. 619
Author(s):  
Rui Xu ◽  
Haitao Ling ◽  
Haijun Wang ◽  
Lizhong Chang ◽  
Shengtao Qiu
Keyword(s):  
Multiphase Flow ◽  
Flow Behavior ◽  
Rolled Strip ◽  
Impact Zone ◽  
Steel Cleanliness ◽  
Carry Over ◽  
Slag Carry Over ◽  
Hot Rolled ◽  
Turbulence Inhibitor ◽  
The Impact

The transient multiphase flow behavior in a single-strand tundish during ladle change was studied using physical modeling. The water and silicon oil were employed to simulate the liquid steel and slag. The effect of the turbulence inhibitor on the slag entrainment and the steel exposure during ladle change were evaluated and discussed. The effect of the slag carry-over on the water-oil-air flow was also analyzed. For the original tundish, the top oil phase in the impact zone was continuously dragged into the tundish bath and opened during ladle change, forming an emulsification phenomenon. By decreasing the liquid velocities in the upper part of the impact zone, the turbulence inhibitor decreased considerably the amount of entrained slag and the steel exposure during ladle change, thereby eliminating the emulsification phenomenon. Furthermore, the use of the TI-2 effectively lowered the effect of the slag carry-over on the steel cleanliness by controlling the movement of slag droplets. The results from industrial trials indicated that the application of the TI-2 reduced considerably the number of linear inclusions caused by ladle change in hot-rolled strip coils.

Design and Simulation of a Hybrid Entrained-Flow and Fluidized Bed Mild Gasifier: Part 2—Case Study and Analysis

2011 ◽  
Author(s):  
A. K. M. Monayem Mazumder ◽  
Ting Wang ◽  
Jobaidur R. Khan
Keyword(s):  
Multiphase Flow ◽  
Fluidized Bed ◽  
Flow Behavior ◽  
Flame Temperature ◽  
Heterogeneous Reactions ◽  
Thermal Flow ◽  
Entrained Flow ◽  
Progressive Development ◽  
Gasification Process ◽  
Flow And Heat Transfer

To help design a mild-gasifier, a reactive multiphase flow computational model has been developed in Part 1 using Eulerian-Eulerian method to investigate the thermal-flow and gasification process inside a conceptual, hybrid entrained-flow and fluidized-bed mild-gasifier. In Part 2, the results of the verifications and the progressive development from simple conditions without particles and reactions to complicated conditions with full reactive multiphase flow are presented. Development of the model starts from simulating single-phase turbulent flow and heat transfer in order to understand the thermal-flow behavior, followed by introducing seven global, homogeneous gasification reactions progressively added one equation at a time. Finally, the particles are introduced, and heterogeneous reactions are added in a granular flow field. The mass-weighted, adiabatic flame temperature is validated through theoretical calculation and the minimum fluidization velocity is found to be close to Ergun’s correlation. Furthermore, the predicted exit species composition is consistent with the equilibrium values.

Mechanism of fluid flow in a continuous casting tundish with different turbo-stoppers

2001 ◽  
Vol 72 (11-12) ◽  
pp. 466-476 ◽  
Author(s):  
Hans-Jürgen Odenthal ◽  
Ralf Bölling ◽  
Herbert Pfeifer ◽  
Jörg-Friedrich Holzhauser ◽  
Franz-Josef Wahlers
Keyword(s):  
Fluid Flow ◽  
Continuous Casting ◽  
Continuous Casting Tundish
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