4747m³高炉卷焊型风口数值模拟及结构改进

朱贺斌,赵贤聪,张哲铠,白皓,吴胜利

（北京科技大学冶金与生态工程学院，北京100083）

关键字：数值模拟；温度场；流场；流动死区；优化结构

中图分类号：TF046.6文献标识码：A

摘要：风口前端深入高炉内部，其工作环境恶劣，极其容易损坏。为了得到卷焊型风口本体的温度场和冷却水流场，本文利用计算流体力学软件对其进行数值模拟计算。通过模拟发现风口前端Ⅰ水室内存在冷却水流动死区，随后分别讨论了改变流量和优化风口结构对缓解死区的影响。

Numerical simulation and structure improvement of the welded tuyere of 4747m³blast furnace

Zhu He-bin，Zhao Xian-cong，Zhang Zhe-kai，BaiHao，Wu Sheng-li

（School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083）

Key words：numerical simulation；temperature field；flow field；flow dead zone；structure improvement

Abstract：Tuyeres are located deep inside the blast furnace with poor working condition , which are extremely easy to damage. CFD software was used to simulate and get the temperature field and the cooling water flow field of welded tuyere. Through the simulation, a flow dead zone was found in tuyere chamber Ⅰ.Then the impact of changing air flow and optimizing the tuyere structure on alleviate the dead zone was discussed.