pdf study of the deskulling problem of tundishes in
PHYSICAL MODELLING OF TUNDISH SLAG ENTRAINMENT
study of character of casting in the tundish in order to optimize the range of intermixed zone 19 and the inner arrangement of tundishes 20 . Thus to find the critical level of steel bath for the entrain-ment of tundish slag it was decided that research will be con-ducted in that tested and proved model.
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Enhancing Steel Cleanliness in Tundishes by applying
1.1 Problem statement 1 1.2 Investigation of Tundish Open Eyes (TOEs) 5 1.3 Non-isothermal effects 7 . 2. Literature review 11 . 2.1 Fluid flow in ladles and tundishes 11 2.2 Open eye in ladles and tundishes
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Optimization of a Six-Strand Continuous Casting Tundish
reactor has come to the forefront in this study. It is necessary to understand and describe the flow transfer and thermal phenomena that occur during the casting of steel. These studies involve numerous rectangular tundishes provided with two nozzles 1 being in use (from single-and multiple-strand through-type 2 3 or delta -type
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MODEL STUDY OF TUNDISH STEEL INTERMIXING AND
physical models of tundishes currently available. The first model is the one of a four-strand asym-metric tundish of the CCM No.2 operating in TZ. The CC-machine No.2 of TZ is of an eight-strand design set for billets a radial type with the radius of curvature of 9 m and is equipped with two asymmetric four-strand tundishes for casting 3 .
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(PDF) Tundish Open Eye Formation in Inert Gas-Shrouded
In the present study the bubble plume regions in a ladle and tundish were compared and it was observed that there are significant differences between the two. Moreover a simplistic model for predicting the open eye area in tundishes for thin slag practices was derived using the principles of conservation of mass and momentum.
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Study of the deskulling problem of tundishes in continuous
Abstract. This paper reports an investigation carried out on the deskulling problem of tundishes at the Mobarakeh Steel Plant in Iran. Bad deskulling of tundishes is a major problem in continuous casting of steel and can occur due to the chemical reactions between the refractory lining and the slag carry over from ladle to tundish.
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(PDF) Study of the Deskulling Problem of Tundishes in
This paper reports an investigation carried out on the deskulling problem of tundishes at the Mobarakeh Steel Plant in Iran. Bad deskulling of tundishes is a major problem in
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Designing and Computational Modeling Study of Innovative
Slag vortexing Reoxidation of the liquid steel from tundish open eye with high superheat casting are main causes behind many customer complains as well as high rejection of metal in integrated steel plants. In present investigation a novel stopper rod with refractory water cooled sub-chamber has been proposed. This is capable to reduce 60 skull generation and will help to reduce supeheat of
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(PDF) The effect of slag nature on deskulling of tundish
Bad deskulling of tundishes is a major problem in continuous casting of steel and can occur due to the chemical reactions between the refractory lining and the slag carry over from ladle to tundish.
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Effects of Clogging Argon Injection and Casting
Parametric Study with 3-D model Over 90 simulations were performed in the parametric study with the 3-D finite difference model. All of the runs were based on the standard nozzle in Figure 1 with the standard geometry and operating conditions given in Table I. This nozzle is typical of a conventional slab casting operation. It
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A Novel Tundish for Single Strand Slab Casting SpringerLink
Increasing the production efficiency of the continuous casting process requires casting longer sequences of ladles without stopping and restarting the caster. As the demand for wider ranges of steel products increases at the same time the intermixing of dissimilar grades is becoming a problem of growing concern. Large quantities of metal loss occurs from down gradation when two highly
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KRAA deskulling machine for tundish and
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skull crushing apparatus and method for removing residual skull left in a tundish by moving the tundish to a recycling facility for repair of the finished tundish in continuous casting steelmaking. The scull removing device of the present invention includes a landing frame for rotating the tundish a
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PDF TUNDISH NOZZLE CLOGGINGAPPLICATION OF
Clogging of the tundish nozzle is a major castability problem in continuous casting of steel for several reasons. Firstly clogging increases the frequency of operation disruptions to change nozzles or tundishes or even to stop casting. These extra transitions increase operating cost
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(PDF) Tundish Open Eye Formation in Inert Gas-Shrouded
In the present study the bubble plume regions in a ladle and tundish were compared and it was observed that there are significant differences between the two. Moreover a simplistic model for predicting the open eye area in tundishes for thin slag practices was derived using the principles of conservation of mass and momentum.
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Physical hnodelling of Tundish Plasma Heating Mathe-
ISIJ International Vol. 36 (1996) No. 9 Tundish model J Centered Off-centered h-LD-j Ii l hl2 cm ll Dog-House 2 I l q r i -l __ Ir_1rv_v___ I " l C r vav R Flow devlator l T dlf Fig. 2. Positions of the heating jet and trajectories of tracers in the tundish model. consequently of the steam jet was also varied in the positions centered and off-centered just in the center of
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Year 2008 Volume 28Techna Group
Abstract. This paper reports an investigation carried out on the deskulling problem of tundishes at the Mobarakeh Steel Plant in Iran. Bad deskulling of tundishes is a major problem in continuous casting of steel and can occur due to the chemical reactions between the refractory lining and the slag carry over from ladle to tundish.
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Metallurgical and Materials Transactions B Vol. 32B No
B. Parametric Study with 3-D Computational Model The 3-D computational model is employed here to simulate the turbulent flow of liquid steel with argon bubbles in a typical slide-gate nozzle and to perform an extensive parametric study of relevant operating conditions including casting speed gate
Get PricePerformance Optimization of a Six-Strand Tundish
effective tool for the design of steel tundishes. In the present study 3-D turbulent flow field in a six-strand trough type tundish is investigated using the standard . k-ε model of turbulence. The finite volume based commer- cial software FLUENT 6.3.26 is used for performing the simulations. The flow fields thus obtained are used to
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Optimization of a Six-Strand Continuous Casting Tundish
reactor has come to the forefront in this study. It is necessary to understand and describe the flow transfer and thermal phenomena that occur during the casting of steel. These studies involve numerous rectangular tundishes provided with two nozzles 1 being in use (from single-and multiple-strand through-type 2 3 or delta -type
Get PriceFLUID FLOW HEAT TRANSFER AND INCLUSION MOTION
industrial tundishes hint serious problems for any direct and elaborate industrial experimental investigations of the fluid flow phenomena in tundishes. On the other hand though the kinematic viscosity of steel is almost equal to that of water the fluid flow study through water models 5 7-20) also need to be further proved before using to
Get PriceFLUID FLOW HEAT TRANSFER AND INCLUSION MOTION
industrial tundishes hint serious problems for any direct and elaborate industrial experimental investigations of the fluid flow phenomena in tundishes. On the other hand though the kinematic viscosity of steel is almost equal to that of water the fluid flow study through water models 5 7-20) also need to be further proved before using to
Get PriceFluid Flow Heat Transfer Mixing Time and Inclusion
The geometry of the multi-strand Tundishes (which is used to be a guide of the setting of CFD model for the use of the practical investigation in the targeted factories in Sudan) considered in the present study was the same as that used by Merder et al. 1 and Gupta and Dewan 2 which is a six-
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PDF TUNDISH NOZZLE CLOGGINGAPPLICATION OF
Clogging of the tundish nozzle is a major castability problem in continuous casting of steel for several reasons. Firstly clogging increases the frequency of operation disruptions to change nozzles or tundishes or even to stop casting. These extra transitions increase operating cost
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EFFECT OF THE STRUCTURAL PARAMETERS CHANGES IN THE
study was carried out in industrial conditions for con-tinuous steel casting (tundish 15 Mg) in one of the steel mills. Samples were taken from continuous ingots (Nos. 1 2 3). Steel grade for the experiment was steel BSt500S. The content of the major ingredients of the considered type of steel is shown in Table 2.
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EFFECTS OF CLOGGING ARGON INJECTION AND
B. Parametric Study with 3-D Computational Model The 3-D computational model is employed here to simulate the turbulent flow of liquid steel with argon bubbles in a typical slide-gate nozzle and to perform an extensive parametric study of relevant operating conditions including casting speed gate
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Enhancing Steel Cleanliness in Tundishes by applying
1.1 Problem statement 1 1.2 Investigation of Tundish Open Eyes (TOEs) 5 1.3 Non-isothermal effects 7 . 2. Literature review 11 . 2.1 Fluid flow in ladles and tundishes 11 2.2 Open eye in ladles and tundishes
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Metallurgical and Materials Transactions B Vol. 32B No
B. Parametric Study with 3-D Computational Model The 3-D computational model is employed here to simulate the turbulent flow of liquid steel with argon bubbles in a typical slide-gate nozzle and to perform an extensive parametric study of relevant operating conditions including casting speed gate
Get Price
PDF TUNDISH NOZZLE CLOGGINGAPPLICATION OF
Clogging of the tundish nozzle is a major castability problem in continuous casting of steel for several reasons. Firstly clogging increases the frequency of operation disruptions to change nozzles or tundishes or even to stop casting. These extra transitions increase operating cost
Get Price
Year 2008 Volume 28Techna Group
Abstract. This paper reports an investigation carried out on the deskulling problem of tundishes at the Mobarakeh Steel Plant in Iran. Bad deskulling of tundishes is a major problem in continuous casting of steel and can occur due to the chemical reactions between the refractory lining and the slag carry over from ladle to tundish.
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