180t转炉氧枪喷头的设计和优化

Design and Optimization of 180 t Converter Oxygen Lance Nozzle

基于氧枪设计的经典理论,得出180 t转炉5孔氧枪喷头的入口直径55 mm,喉口直径37.2 mm,出口直径50.8 mm,收缩段长度44.6 mm,扩张段长度97.2 mm,喉口长度5 mm;采用CFD流体仿真软件模拟在相同环境温度下喷孔夹角13°~17°时氧枪射流流场,得出15°为180 t转炉氧枪最优喷孔夹角,其射流具有较强的穿透能力和较大的有效冲击面积。

Based on classical theory for oxygen lance design it is obtained of oxygen lance nozzle with 5 holes for 180 t converter the diameter of inlet 55 mm,the diameter of throat 37.2 mm,the diameter of outlet 50.8 mm,the length of contracting section 44.6 mm,the length of expanding section 97.2 mm and the length of throat 5 mm;with using CFD fluid imitation software to simulate the injecting fluid field of oxygen lance with 13° ~ 17° nozzle at same environmental temperature,it is obtained for 180 t converter the optimum nozzle angle is 15°,its injecting fluid has stronger immersion ability and larger effective impact area.