Design of nozzle for steel continuous casting system based on flow analysis II -Submerged entry nozzle(SEN)-

Abstract

A new geometrical design of the port in the flow line direction to minimize the maximum port velocity (MPV) has been proposed through the analysis using computational fluid dynamics (CFD) and water model experiments to keep uniform velocity distribution of the molten steel flow throughout the outlet of ports for submerged entry nozzle (SEN) in the continuous casting system. The adhesion of the alumina inclusions to the port part of the SEN is reduced by lowering the turbulent kinetic energy since the energy loss is minimized at the part. Both stability in the operation and quality of the steels have been brought by the present development.

Keywords

• continuous casting system
• submerged entry nozzle(sen)
• molten steel flow
• computational fluid dynamics
• flow analysis
• ejection port
• turbulent flow
• adhesion
• erosion