摘要
根据130 t钢包的实际结构,以传热学理论为依据,以ANSYS软件为工具,采用二维轴对称热结构耦合模型,并使用接触单元,提取了耐火衬对包壳的热膨胀压力,发现包壳角部出现压力突变,峰值为65 MPa。因此,对角部耐火衬做了结构改进。然后,采用改进后的二维轴对称热结构耦合模型提取了热膨胀压力及包壳温度载荷。在以上基础上,构建三维包壳模型并施加改进后的温度载荷与热膨胀压力及重力载荷,并建立耳轴与辅助块的接触对来反映包壳的自由热膨胀,进行了高温重载下包壳的强度计算,经计算包壳强度合格。该包壳已应用于工程实际,且使用效果良好。
The refractory lining of the thermal expansion of the cladding pressure was extracted and the cladding corner of the mutation appeared pressure peak of 65 MPa according to the 130 t steel ladle′s actual structure and the heat transfer theory,using a two-dimensional axisymmetric thermal structure coupling model and the contact element in the ANSYS software. Therefore, the structure of refractory lining was improved. Then, the thermal expansion of the cladding pressure and temperature loads were extracted using a two-dimensional symmetry axis improved thermal structure coupled model. Based on the above, a three-dimensional ladle shell model was established and the improved temperature loads and thermal expansion pressure and gravity loads were exerted on this model. The contact pair between trunnion and auxiliary blocks was established to reflect the free thermal cladding expansion of ladle shell. The strength calculations were performed under high-temperature heavy load.The calculated cladding strength was qualified. The cladding has been used in engineering, and the effect was good.
出处
《机械设计》
CSCD
北大核心
2016年第3期67-70,共4页
Journal of Machine Design
基金
辽宁省教育厅一般资助项目(L2013126)
辽宁省高校创新团队支持计划资助项目(LT2015014)
关键词
钢包
包壳
热应力
有限元
应用
steel ladle
ladle shell
thermal stress
finite element analysis
application
