Numerical simulation study on the impact area of six-hole oxygen lance in a 260 t converter

Abstract

In the process of converter smelting, the impact area formed when the jet sprayed by the oxygen lance hits the molten pool to a large extent determines the steel quality. In this study, six sets of oxygen lance models with different inclination angles were established based on the a 260 t converter, and the influence of the jet angle and position of the oxygen lance nozzle on the jet impact area was studied by numerical simulation, and the law of the change of the impact area with the lance position under different impact velocity was explained through theoretical analysis. It was found that the effective impact area of the jet with an inclination angle of 15° was the largest, and the stirring of the molten pool was more uniform.

Keywords

• converter oxygen lance
• physical model
• numerical simulation
• theoretical analysis
• effective impact area