摘要
利用Ansys模拟软件建立了钢包周转过程的传热计算模型,并利用实测数据验证了模型的准确性。利用模型对不同空包时间和在线烘烤时间下的钢包热状态进行了模拟分析,并研究了相应热状态对在钢包后续周转过程中钢水温降的影响。结果表明,钢包空包时间为3h相对于空包时间为1h(正常热修包时间)的情况,由于钢包蓄热损失造成后续周转过程中钢水温降增加约13℃;对于空包时间2～3h的情况,通过对钢包进行40min在线烘烤,能够降低钢包后续周转过程中钢水温降约10℃,烘烤过程中前10min对于增加钢包蓄热效果最明显,能够降低钢水温降约5℃。
The simulation software ANSYS is used to build the heat transfer computation model for the turnover of ladles and the measured data is used to verify the veracity of the model. With the model the thermal conditions of ladles with different cooling time or online preheating time is simulated and analyzed, and further more the influences of the corresponding conditions on molten steel temperature drop are researched when ladles in the following turnover processes. The conclusions can be drawn from the simulation results： when a ladle has 2 hours＇ cooling time compared with one with 1 hour＇s cooling time （the normal hot repair time）, the drop of molten steel temperature is increased by 13 ℃ due to the loss of ladle heat storage; for the situation that a ladle has the cooling time for 2-3 hours, the drop of molten steel temperature when ladles in the following turnover processes may be reduced by 10 ℃ by means of preheating the ladle online for 40 minutes, and at the same time the first 10 minutes＇ online preheating to ladles takes the most great effect to increase the ladle heat storage for reduce the drop of molten steel temperature by 5 ℃.
出处
《山东冶金》
CAS
2012年第6期36-39,共4页
Shandong Metallurgy
基金
中央高校基本科研业务费专项资金资助项目
项目编号:No.FRF-BR-10-027B
关键词
钢包
空包时间
在线烘烤
钢水温降
ladle
ladle cooling time
online preheating
temperature drop of molten steel
