脱硫喷枪热应力行为数值模拟研究与优化  

Numerical Simulation and Optimization on Thermal Stress Behavior of Injection Lance for Hot Metal Desulphurization

作　　者：李明晖[1] 李亚伟[2] 蒋扬虎[1] 欧阳德刚[1] 罗会信[2] 王腾[2] 

机构地区：[1]武汉钢铁(集团)公司,湖北武汉430080 [2]武汉科技大学,湖北武汉430081

出　　处：《铸造技术》2013年第8期1099-1102,共4页Foundry Technology

摘　　要：运用有限元模拟分析技术,建立了脱硫喷枪典型单元(含锚固件)的精细分析模型,利用ANSYS软件计算了脱硫喷枪在实际使用过程中的热应力场,探讨了耐火材料热物理性能、缓冲间隙、结构形式对喷枪热应力行为的影响规律,提出了以低热应力为特征的新型喷枪形式。计算结果和现场应用表明,改进后喷枪耐火材料热应力大幅度减小,喷枪使用寿命延长122%。According to the practical behavior of desulphurization lance, a fine model of typical unit （including anchorages） of lance was build by using FEM. Then the stress field was analyzed by ANSYS soflwarc. And the effect of related factors on thermal stress distribution was researched.such as thermo physical properties of lance refractory, buffer space and lance structure. Finally, a new low-stress lance was invented and applied to the practice. The results of simulation and application show that： the stress of optimized lance refractory reduce significantly; and the service life of lance was extended 122%

关 键 词：脱硫喷枪 耐火材料 有限元法 热应力 结构优化 

分 类 号：TF321[冶金工程—冶金机械及自动化]