摘要
以相似原理为基础,建立1:3的水模型,对涟钢二流板坯连铸中间包进行研究。结果表明,单纯的湍流控制器+挡坝,中间包活塞区体积偏小,死区体积偏大;挡坝开孔能使中间包死区减小,而不会产生明显的短路流;有利于改善中间包钢液流动的控流装置组合为挡堰+开孔挡坝+湍流控制器,得出了其具体位置;优化后的中间包平均停留时间由343 s延长至387 s,死区体积由20.0%下降至9.8%,滞止时间由61 s延长至99 s。
Based on similarity principle, a water model was established with the ratio of model： prototype=1：3, and a tundish prototype for two strands slab continuous casting in Lianyuan Iron ＆ Steel Group was studied. The results show that the plug flow area in tundish is relatively small only with turbulence inhibitor and dam, and the dead area is relatively large. The dead area in tundish decreases because of the hole in the dam, and obvious short flow won＇t appear. Appropriate control devices in optimized tundish are uing the dam with holes, the turbulence inhibitor and the weir. Compared with original tundish, the average resident time of optimized tundish increases from 343 s to 387 s, the dead area fells to 9.8% from 20.0%,and the retention time increases from 61 s to 99 s. Key words： tundish; continuous casting; water modeling; RTD curve
出处
《铸造技术》
CAS
北大核心
2012年第3期331-334,共4页
Foundry Technology
关键词
中间包
连铸
水模型
RTD曲线
tundish
continuous casting
water modeling
RTD curve
