Design and Plant Experience Using an Adv

This paper discusses the design and implementation of a refractory device aimed at improving the liquid steel flow in the tundish of the ACINDAR billet, bloom, and minislab caster, based on water and mathematical modeling work. The objective was to enhance the flow behavior by reducing slag emulsification and minimizing the steel's contact with air during ladle changes. The methodology involved the creation of an advanced pouring box (APB) tested through simulations and trials at a steel plant, considering both steady and transient states. Results indicated significant improvements in flow characteristics, such as enhanced steel temperature homogeneity and better inclusion counts throughout the casting sequence. Additionally, plant tests showed that the device increased the minimum and median residence times, elevated plug flow volumes, and eliminated the second peak for inner strands. The findings suggest that the APB optimizes the tundish's operation as a continuous metallurgical reactor, improving steel quality and cleanliness. These positive outcomes highlight the importance of advanced modeling in enhancing traditional steel casting processes.