节能型加盖钢包钢水热耦合数值模拟研究

以钢厂生产用100 t钢包为研究对象,对静置过程的耦合场进行数值模拟研究,运用Fluent软件对钢包静置过程的温度场进行数值模拟计算,得到钢包加盖前后的温降变化曲线,分析包盖对钢包温度场的影响;设置钢包静置时间分别为10 min和60 min,分析静置过程包衬温度变化曲线。结果表明:钢包在前10 min温降比较快,而随着静置时间的延长,钢包温度下降的趋势变缓。钢包全程加盖技术节能效果显著,转炉出钢温度损失平均减少15℃,每吨钢成本降低0.8元以上。

Research on Temperature Field of energy-saving ladle with Adding lid by Thermal Coupling Numerical Simulation

The temperature field of a 100 t ladle during static process was calculated by using Fluent software,and he temperature drop curves of with and without adding lid were obtained.Influence of lid on the temperature field of ladle was analyzed.The static time was set at 10 min and 60 min respectively,and the influence of static time on the temperature field of ladle had been analyzed.The results show that temperature drop of ladle in the first 10 min period is relatively significant,and with increasing static time,ladle temperature decreases slowly.Ladle adding lid technology can achieved remarkably energy saving effect.Average temperature loss of the converter tapping steel was reduced by 15 ℃,and cost reduction could be reduced by at least RMB 0.8 per ton steel.