流固热耦合模拟研究钢包透气砖温度场和应力场  

Study on temperature/stress distribution in purging plug for ladle furnace through fluid-solid coupling simulation

作　　者：蔡辉[1] 贺铸[1] 潘丽萍[1] 廖明建[1] 金胜利[1] 李亚伟[1] 

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081

出　　处：《耐火材料》2016年第4期269-273,278,共6页Refractories

基　　金：国家自然科学基金资助项目(51002108)

摘　　要：为了对透气砖的设计制作及实际操作应用提供一些参考,利用ANSYS软件对透气砖体与氩气进行共轭传热计算,得到在钢包运行中透气砖内的温度变化及应力分布。研究结果表明:装钢过程中透气砖轴线上距底面150 mm以下的位置,温度基本不变;吹氩时砖体温度迅速下降,轴线上最大温降超过800℃;整个精炼过程中等效应力最大值出现在吹氩结束时刻的工作面处,为381 MPa,而远离工作面位置的点在装钢运输结束时刻等效应力最大。内圈狭缝靠近中心轴一端的等效应力最大,约为中心轴上的2.5倍,是外圈狭缝的1.5倍。The temperature and thermal stress distribution in the purging plug for ladle furnace was investi-gated through the conjugate heat transfer simulation in ANSYS software,which may provide useful informa-tion for design and practical operation of purging plug. The results showed that the temperature along the axis less than 150 mm from the bottom was almost identical during steel charging. The temperature on the axis of purging plug drops rapidly during argon stirring stage,and a maximum temperature descending of 800 ℃ was achieved. The maximum equivalent stress was 381 MPa on the working face at the end of argon stirring stage,while the maximum equivalent stress was occurred at the end of steel transportation,where was far away from the working face. Besides,the equivalent stress at the end of inner ring slits close to axis was the maximum,which was 2.5 times as much as the stress on the axis and 1.5 times of stress of the outer ring for the same height.

关 键 词：透气砖 钢包流固耦合 温度场 应力场 

分 类 号：TQ175[化学工程—硅酸盐工业]