The Experts below are selected from a list of 5973 Experts worldwide ranked by ideXlab platform
Vasilii V. Tochilkin - One of the best experts on this subject based on the ideXlab platform.
-
analysis of operation of a steel pouring ladle Tundish system for a section cbcm and improved refractory structures of the Tundish receiving chamber
Refractories and Industrial Ceramics, 2016Co-Authors: K. N. Vdovin, Vasilii V. TochilkinAbstract:Operation of a section CBCM steel-pouring ladle–Tundish, and also questions of organizing steel flow movement in the Tundish receiving chamber are analyzed. The considerable effect of new components of refractory structures on metal flow parameters in the Tundish receiving chamber is demonstrated. Contemporary equipment of the receiving chamber provides effective formation of metal flow in the chamber and trouble-free CBCM operation.
-
Analysis of Operation of a Steel-Pouring Ladle–Tundish System for a Section CBCM and Improved Refractory Structures of the Tundish Receiving Chamber
Refractories and Industrial Ceramics, 2016Co-Authors: K. N. Vdovin, Vasilii V. TochilkinAbstract:Operation of a section CBCM steel-pouring ladle–Tundish, and also questions of organizing steel flow movement in the Tundish receiving chamber are analyzed. The considerable effect of new components of refractory structures on metal flow parameters in the Tundish receiving chamber is demonstrated. Contemporary equipment of the receiving chamber provides effective formation of metal flow in the chamber and trouble-free CBCM operation.
K. N. Vdovin - One of the best experts on this subject based on the ideXlab platform.
-
analysis of operation of a steel pouring ladle Tundish system for a section cbcm and improved refractory structures of the Tundish receiving chamber
Refractories and Industrial Ceramics, 2016Co-Authors: K. N. Vdovin, Vasilii V. TochilkinAbstract:Operation of a section CBCM steel-pouring ladle–Tundish, and also questions of organizing steel flow movement in the Tundish receiving chamber are analyzed. The considerable effect of new components of refractory structures on metal flow parameters in the Tundish receiving chamber is demonstrated. Contemporary equipment of the receiving chamber provides effective formation of metal flow in the chamber and trouble-free CBCM operation.
-
Analysis of Operation of a Steel-Pouring Ladle–Tundish System for a Section CBCM and Improved Refractory Structures of the Tundish Receiving Chamber
Refractories and Industrial Ceramics, 2016Co-Authors: K. N. Vdovin, Vasilii V. TochilkinAbstract:Operation of a section CBCM steel-pouring ladle–Tundish, and also questions of organizing steel flow movement in the Tundish receiving chamber are analyzed. The considerable effect of new components of refractory structures on metal flow parameters in the Tundish receiving chamber is demonstrated. Contemporary equipment of the receiving chamber provides effective formation of metal flow in the chamber and trouble-free CBCM operation.
-
Designing Refractories for the Tundish of a Continuous Caster
Refractories and Industrial Ceramics, 2016Co-Authors: K. N. Vdovin, V. V. Tochilkin, I. M. YachikovAbstract:The equipment installed in the chambers of a continuous-caster Tundish is examined. An improvement made to this equipment is ensuring the efficient formation of flows of metal in the Tundish and creating the conditions necessary for improving the quality of the cast metal.
-
Intake chamber of the Tundish in a continuous slab-casting machine
Steel in Translation, 2014Co-Authors: K. N. Vdovin, E. A. Mel’nichuk, A. V. Nefedov, V. V. TochilkinAbstract:The configuration of the intake chamber for the Tundish in a single-strand continuous slab-casting machine equipped with a special metal reservoir and barrier mounted at the boundary of the intake chamber. The metal reservoir and barrier contain casting holes positioned symmetrically relative to the longitudinal axis of the Tundish. The influence of the reconfigured distribution system on the parameters of the steel flux in the Tundish and on the removal of nonmetallic inclusions is considered.
S. K. Ajmani - One of the best experts on this subject based on the ideXlab platform.
-
numerical investigation of fluid flow and heat transfer phenomenon inside a single strand Tundish of slab caster
Steel Research International, 2015Co-Authors: Anurag Tripathi, S. K. Ajmani, Jaspreet Singh, Anil Kumar, Vinay V MahashabdeAbstract:The Tundish design is an important factor which governs the steel quality. An effective Tundish design can enhance inclusion flotation through development of required liquid steel flow pattern. The well-shaped bottom is one of the developments in the area of Tundish design. This Tundish is in practice and has significantly contributed towards improving the productivity of the steel plants. The current work investigates the liquid steel flow phenomenon in this type of Tundish. The 3D CFD model was used for present investigation. The results obtained shows that well-shaped bottom Tundish produces better performance as compared to Tundishes having flat bottom. The effect of bath height, throughput and depth of well on flow behavior inside the Tundish having well-shaped bottom was studied in the current work. The results of RTD analysis show the need to optimize these parameters. CFD simulations were also performed to capture the non isothermal phenomenon in a well-shaped bottom Tundish.
-
Effect of Shape and Flow Control Devices on the Fluid Flow Characteristics in Three Different Industrial Six Strand Billet Caster Tundish
Isij International, 2011Co-Authors: Anurag Tripathi, S. K. AjmaniAbstract:Fluid flow phenomenon in a Tundish depends upon the shape of Tundish. The change in the shapes can bring drastic change in the flow pattern and thus effect the fluid flow characteristics in the Tundish. The signifiacnt effect of flow control devices on fluid flow phenomenon is also noticed. In the present work, investigation of fluid flow phenomenon was performed for the symmetrical half of a six strand Tundish. Fluid flow pattern gets altered by changing the shapes of Tundish and pouring chamber. The impact of this change results in a development of various flow patterns. These flow patterns are analysed for capturing the better inclusion flotation. The mathematical model has been validated by the experimental results of Singh and Koria for a single strand bare Tundish.
-
Numerical Investigation of Fluid Flow Phenomenon in a Curved Shape Tundish of Billet Caster
Isij International, 2005Co-Authors: Anurag Tripathi, S. K. AjmaniAbstract:The conventional delta shaped Tundish (rectangular with sloping walls) is currently used in many industries for billet caster. The effective volume in this type of Tundish is significantly low and results in a lower quality of steel. In the present work, a three-dimensional mathematical model has been used to study the fluid flow characteristics in a six strand billet caster Tundish whose one side is curved. The results obtained were compared with a conventional delta shaped Tundish and the strong role of curvature in modifying the fluid flow characteristics is noticed. Investigations were performed to study the effect of ladle pouring point in a curved shape Tundish. It was found that fluid flow characteristics can be improved by placing the ladle pouring point at the right position. Simulations have been performed for two different shapes of pouring chamber to investigate the role of curvature in the flow control devices. The results obtained confirmed the strong role of curvature to get the improved characteristics for inclusion flotation. The mathematical model has been validated by the experimental results of Singh and Koria for a single strand bare Tundish.
Liangcai Zhong - One of the best experts on this subject based on the ideXlab platform.
-
simulation of flow and heat fields in a seven strand Tundish with gas curtain for molten steel continuous casting
Isij International, 2015Co-Authors: Sheng Chang, Liangcai ZhongAbstract:The present study involves physical and mathematical simulations to study the effect of gas bubbling curtains on the flow and temperature fields in a seven-strand Tundish. In 1/3 scale Tundish model experiments, RTD (Residence Time Distribution) curves were used to study the flow characteristics in the Tundish with different configurations. The flow uniformity for all strands is evaluated through variance analysis of the RTD curves in different Tundish cases. Besides, the tracer dispersion experiment was performed to visualize the fluid flow under the effect of the gas curtain. In order to investigate the effect of a gas curtain on the flow in the Tundish, mathematical simulations were carried out mainly for two cases with or without gas bubbling curtains. The RTD curves were obtained from the species transport model. The results obtained show that gas bubbling curtains can help improve fluid flow characteristics in multistrand Tundish, and that the location of the curtains plays a key role in optimizing multi-strand Tundishes configuration. Gas bubbling curtains can decrease the differences in residence times and molten steel temperatures at different outlets in multi-strand Tundishes effectively. Heat transfer between different areas is promoted and the temperature field is uniformed significantly in such Tundishes.
-
fluid flow in a four strand bloom continuous casting Tundish with different flow modifiers
Isij International, 2007Co-Authors: Liangcai Zhong, Baokuang Li, Rengui Wang, Wenzhong Wang, Xiaojun ZhangAbstract:Fluid flows in a four-strand Tundish for bloom continuous casting have been investigated with physical modeling and mathematical simulation methods. The liquid steel flow velocity fields in the former Tundish and the optimal one with a turbulence inhibitor and newly-designed baffles were numerically calculated and the flow characteristics in the two cases and other Tundish configurations were measured in the physical modeling. The results in the physical modeling experiments showed that large difference in the Residence Time Distribution (RTD) curves of two outlets in one side of the former configuration Tundish existed. It was found from the numerical calculation of the velocity fields in the Tundishes that with the former Tundish configuration velocities and turbulent degree of the liquid steel flow in the impact zone of the Tundish were large due to the high velocities of liquid steel from the long shroud of the ladle, which caused in lining corrosion and slag entrapment due to the surface eddies. Asymmetric velocity field in the Tundish with the former baffles formed and short circuit flow existed in one side of the four-strand Tundish. For the optimal configuration of the Tundish with a turbulence inhibitor and newly-designed baffles, very similar RTD curves of the two outlets in the same side of the Tundish were achieved. The velocities and turbulent degree in the impacting zone of the Tundish were depressed and quiet and symmetric molten steel flow was obtained. Eddies on surface and short circuit flow in the optimal Tundish disappeared. Such improvement of liquid steel flow in the Tundish would increase the ability of inclusion removal. Turbulence inhibitors should be used with other well-designed flow control devices for effective improvement to fluid flow characteristics in Tundishes.
Anurag Tripathi - One of the best experts on this subject based on the ideXlab platform.
-
numerical investigation of fluid flow and heat transfer phenomenon inside a single strand Tundish of slab caster
Steel Research International, 2015Co-Authors: Anurag Tripathi, S. K. Ajmani, Jaspreet Singh, Anil Kumar, Vinay V MahashabdeAbstract:The Tundish design is an important factor which governs the steel quality. An effective Tundish design can enhance inclusion flotation through development of required liquid steel flow pattern. The well-shaped bottom is one of the developments in the area of Tundish design. This Tundish is in practice and has significantly contributed towards improving the productivity of the steel plants. The current work investigates the liquid steel flow phenomenon in this type of Tundish. The 3D CFD model was used for present investigation. The results obtained shows that well-shaped bottom Tundish produces better performance as compared to Tundishes having flat bottom. The effect of bath height, throughput and depth of well on flow behavior inside the Tundish having well-shaped bottom was studied in the current work. The results of RTD analysis show the need to optimize these parameters. CFD simulations were also performed to capture the non isothermal phenomenon in a well-shaped bottom Tundish.
-
Effect of Shape and Flow Control Devices on the Fluid Flow Characteristics in Three Different Industrial Six Strand Billet Caster Tundish
Isij International, 2011Co-Authors: Anurag Tripathi, S. K. AjmaniAbstract:Fluid flow phenomenon in a Tundish depends upon the shape of Tundish. The change in the shapes can bring drastic change in the flow pattern and thus effect the fluid flow characteristics in the Tundish. The signifiacnt effect of flow control devices on fluid flow phenomenon is also noticed. In the present work, investigation of fluid flow phenomenon was performed for the symmetrical half of a six strand Tundish. Fluid flow pattern gets altered by changing the shapes of Tundish and pouring chamber. The impact of this change results in a development of various flow patterns. These flow patterns are analysed for capturing the better inclusion flotation. The mathematical model has been validated by the experimental results of Singh and Koria for a single strand bare Tundish.
-
Numerical Investigation of Fluid Flow Phenomenon in a Curved Shape Tundish of Billet Caster
Isij International, 2005Co-Authors: Anurag Tripathi, S. K. AjmaniAbstract:The conventional delta shaped Tundish (rectangular with sloping walls) is currently used in many industries for billet caster. The effective volume in this type of Tundish is significantly low and results in a lower quality of steel. In the present work, a three-dimensional mathematical model has been used to study the fluid flow characteristics in a six strand billet caster Tundish whose one side is curved. The results obtained were compared with a conventional delta shaped Tundish and the strong role of curvature in modifying the fluid flow characteristics is noticed. Investigations were performed to study the effect of ladle pouring point in a curved shape Tundish. It was found that fluid flow characteristics can be improved by placing the ladle pouring point at the right position. Simulations have been performed for two different shapes of pouring chamber to investigate the role of curvature in the flow control devices. The results obtained confirmed the strong role of curvature to get the improved characteristics for inclusion flotation. The mathematical model has been validated by the experimental results of Singh and Koria for a single strand bare Tundish.
