铜浮渣转炉燃烧与传热过程数值模拟

冶金工程 • 矿业工程 • 化学化工

铜浮渣转炉燃烧与传热过程数值模拟

闫红杰，

谢环宇，

胡卫文，

何岳峰，

刘勇，

刘柳

中国有色金属学报

第34卷, 第11期

pp.3775-3791

纸质出版 2024-11-28

DOI：10.11817/j.ysxb.1004.0609.2024-44950

中图分类号：TK175

6800

本文以某铅冶炼厂铜浮渣转炉为研究对象，通过对同轴射流甲烷燃烧器的试验数据进行对比，对燃烧模型与湍流模型进行了对比验证，构建了铜浮渣转炉内多物理场数值模型，对转炉运行工况的天然气燃烧与传热过程进行了数值模拟，深入分析了炉内速度场、温度场和浓度场的分布规律。结果表明：转炉内天然气混合充分、燃烧完全，空燃比和烧嘴结构的优化空间较小。炉头的1^#、2^#烧嘴火焰主要通过热辐射向熔体传热，而炉身的3^#、4^#烧嘴火焰则主要通过热对流向熔体传热。截面平均温度沿炉长方向（从炉头至炉尾）逐渐降低。在3^#、4^#烧嘴所在的径向截面，平均温度出现极值点，其位置与平均速度的极值点基本一致。转炉耐火砖受侵蚀较为严重的区域分别位于炉头顶部与炉头渣线附近，导致侵蚀的主要原因在于壁面局部高温。

铜浮渣转炉天然气燃烧数值模拟烧嘴

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