基于数值模拟的电炉氧枪结构及参数优化

Optimization of EAF Lance Structure and Parameters Based on Numerical Simulation

探索基于数值模拟对电炉氧枪结构及参数进行优化。在氧枪常用工作压力等条件下,应用数值模拟软件对氧枪射流特征进行了模拟,得到了不同氧枪结构及参数下的射流特性。经比较,主氧压力0.79MPa情况下当弧形燃烧室长度为80mm,环氧流量为450m3/h时,氧枪超音速核心段长度最长,氧枪聚合度最好,射流特性最优。并进行了冷热态实验,实验结果与数值模拟结果基本相符,证明了数值模拟结果的可信性。

This research is about the optimization of EAF lance structure and parameters based on numerical simulation. In the lance normal pressure condition, the jet character of different lance structure and parameters is calculated through numerical simulation software. The numerical simulation results show that the best jet character appears when the main pressure is 0.79MPa, the firebox length is 80mm and circular oxygen flow rate is 450m^3/h. In this condition, the cojet （nucleus distance in supersonic speed of lance） reaches the maximum length and best coherent. The normal temperature experiment is also taken and the results match the numerical simulation. This proved the reliability of numerical simulation result.