Experimental Analysis of a Slab Continuous-Casting SEN with an Inner Flow Divider
In slab continuous-casting machines, the quality of the finished product mainly depends on the hydrodynamic behavior of the molten steel in the cavity of the continuous-casting mold, where the submerged entry nozzle is the central element. Recently, a nontraditional nozzle design was reported, where...
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MDPI AG
2022-06-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/7/1097 |
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| author | Jesus Gonzalez-Trejo J. Raul Miranda-Tello Francisco Cervantes-de-la-Torre Ignacio Carvajal-Mariscal Florencio Sanchez-Silva Ruslan Gabbasov Cesar A. Real-Ramirez |
| author_facet | Jesus Gonzalez-Trejo J. Raul Miranda-Tello Francisco Cervantes-de-la-Torre Ignacio Carvajal-Mariscal Florencio Sanchez-Silva Ruslan Gabbasov Cesar A. Real-Ramirez |
| author_sort | Jesus Gonzalez-Trejo |
| collection | DOAJ |
| description | In slab continuous-casting machines, the quality of the finished product mainly depends on the hydrodynamic behavior of the molten steel in the cavity of the continuous-casting mold, where the submerged entry nozzle is the central element. Recently, a nontraditional nozzle design was reported, where a solid barrier attached to the inner bottom wall of the nozzle divides its internal volume, particularly around the outlet ports. The solid barrier was named a flow divider. In this work, the effect of the flow divider is analyzed by comparing the performance of traditional nozzles with the performance of nozzles altered with the flow divider. The performance of the nozzles was evaluated experimentally, employing a scaled model of the mold section, using cold water as the working fluid. The shape of the nozzle outlet jets and the fluid flow pattern in the mold cavity were used to determine the performance of the nozzles. In addition, several factors affecting the process stability and the quality of the product were analyzed: the casting speed, the tilt of the nozzle outlet ports, and the injection of gas in the liquid stream entering the nozzle. The analysis showed that for the nozzles with the flow divider, (i) the outlet jets are narrow and symmetric, (ii) the symmetrical double-roll flow pattern in the mold cavity is obtained, (iii) the liquid-free surface is stable and has low distortions, and (iv) the flow divider neither increases the bubble breakage nor the coalescence between them. |
| first_indexed | 2024-03-09T10:15:23Z |
| format | Article |
| id | doaj.art-63ec2d5380e548d3939bd39b35d15f31 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T10:15:23Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-63ec2d5380e548d3939bd39b35d15f312023-12-01T22:26:11ZengMDPI AGMetals2075-47012022-06-01127109710.3390/met12071097Experimental Analysis of a Slab Continuous-Casting SEN with an Inner Flow DividerJesus Gonzalez-Trejo0J. Raul Miranda-Tello1Francisco Cervantes-de-la-Torre2Ignacio Carvajal-Mariscal3Florencio Sanchez-Silva4Ruslan Gabbasov5Cesar A. Real-Ramirez6Departamento de Sistemas, Universidad Autonoma Metropolitana, Mexico City 02200, MexicoDepartamento de Electronica, Universidad Autonoma Metropolitana, Mexico City 02200, MexicoDepartamento de Sistemas, Universidad Autonoma Metropolitana, Mexico City 02200, MexicoInstituto Politecnico Nacional, ESIME UPALM, Mexico City 07738, MexicoInstituto Politecnico Nacional, ESIME UPALM, Mexico City 07738, MexicoDepartamento de Sistemas, Universidad Autonoma Metropolitana, Mexico City 02200, MexicoDepartamento de Sistemas, Universidad Autonoma Metropolitana, Mexico City 02200, MexicoIn slab continuous-casting machines, the quality of the finished product mainly depends on the hydrodynamic behavior of the molten steel in the cavity of the continuous-casting mold, where the submerged entry nozzle is the central element. Recently, a nontraditional nozzle design was reported, where a solid barrier attached to the inner bottom wall of the nozzle divides its internal volume, particularly around the outlet ports. The solid barrier was named a flow divider. In this work, the effect of the flow divider is analyzed by comparing the performance of traditional nozzles with the performance of nozzles altered with the flow divider. The performance of the nozzles was evaluated experimentally, employing a scaled model of the mold section, using cold water as the working fluid. The shape of the nozzle outlet jets and the fluid flow pattern in the mold cavity were used to determine the performance of the nozzles. In addition, several factors affecting the process stability and the quality of the product were analyzed: the casting speed, the tilt of the nozzle outlet ports, and the injection of gas in the liquid stream entering the nozzle. The analysis showed that for the nozzles with the flow divider, (i) the outlet jets are narrow and symmetric, (ii) the symmetrical double-roll flow pattern in the mold cavity is obtained, (iii) the liquid-free surface is stable and has low distortions, and (iv) the flow divider neither increases the bubble breakage nor the coalescence between them.https://www.mdpi.com/2075-4701/12/7/1097slab continuous castingsubmerged entry nozzleexperimental analysis |
| spellingShingle | Jesus Gonzalez-Trejo J. Raul Miranda-Tello Francisco Cervantes-de-la-Torre Ignacio Carvajal-Mariscal Florencio Sanchez-Silva Ruslan Gabbasov Cesar A. Real-Ramirez Experimental Analysis of a Slab Continuous-Casting SEN with an Inner Flow Divider Metals slab continuous casting submerged entry nozzle experimental analysis |
| title | Experimental Analysis of a Slab Continuous-Casting SEN with an Inner Flow Divider |
| title_full | Experimental Analysis of a Slab Continuous-Casting SEN with an Inner Flow Divider |
| title_fullStr | Experimental Analysis of a Slab Continuous-Casting SEN with an Inner Flow Divider |
| title_full_unstemmed | Experimental Analysis of a Slab Continuous-Casting SEN with an Inner Flow Divider |
| title_short | Experimental Analysis of a Slab Continuous-Casting SEN with an Inner Flow Divider |
| title_sort | experimental analysis of a slab continuous casting sen with an inner flow divider |
| topic | slab continuous casting submerged entry nozzle experimental analysis |
| url | https://www.mdpi.com/2075-4701/12/7/1097 |
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