100t顶吹转炉三维可压缩流场的数值模拟  

Numerical Simulation of Three Dimensional Compressible Fluid Flow of 100 t Top-Blown Oxygen Converter

作　　者：解家英[1] 张利君[1] 宁林新[1] 王凤琴[1] 

机构地区：[1]首钢技术研究院,北京100043

出　　处：《特殊钢》2014年第5期1-4,共4页Special Steel

摘　　要：通过利用Fluent流体软件及标准κ-ε方程模型,研究氧气压力（11.46×10^5 Pa和6.88×10^5 Pa）及氧枪位置（1.2-1.5 m）对钢厂100 t顶吹转炉氧枪射流特性及钢液表面冲击的影响。结果表明,随氧气压力的增大,氧气在转炉内高速区范围变大,射流核心段长度变长,且气流的压能增加;氧气压力为11.46×10^5Pa时,当枪位由1.2 m提到1.5 m时,钢液表面氧气流最大冲击速度由240 m/s降低至194 m/s,高速区面积减少,钢液凹坑深度由0.37-0.43 m降至0.30-0.36 m,同时凹坑最大直径由0.70-0.80 m增至0.80-0.95 m。The influence of oxygen pressure （ 11.46 × 10^5 Pa and 6. 88 × 10^5 Pa） and oxygen lance level （ 1.2 × 1.5 m） on jet characteristics and impact of liquid surface of 100 t top-blown oxygen converter at steel words is studied by using Fluent fluid software and standard κ-ε turbulence model. Results show that with increasing oxygen pressure the high speed region of oxygen in converter enlarges, the length of jet key area increases and the pressure energy of jet enhances; with ox- ygen pressure 11.46 x 105 Pa, as oxygen lance level is raised from 1.2 m to 1.5 m, the max impact speed of oxygen flow at liquid surface decreases from 240 m/s to 194 m/s and the high Speed region reduces, the depth of liquid cavity decreases from 0. 37 - 0. 43 m to 0. 30- 0. 36 m while the max diameter of liquid cavity enlarges from 0. 70 - 0. 80 m to 0. 80 - 0. 95 m.

关 键 词：100t顶吹转炉 氧枪 射流特性 数值模拟 枪位 氧气压力 钢液凹坑 

分 类 号：TF721[冶金工程—钢铁冶金]