摘要
为了适当延长钢液在中间包停留时间,以尽可能多地去除钢液中的夹杂物,使中间包的温度及成分更加均匀;为了减少中间包的死区,保证中间包内部有合理大小的全混区和柱塞流区,通过优化中间包的上挡墙及坝的结构参数,提高中间包的利用效率。以酒钢板坯连铸中间包为研究对象,按1:3的比例建立了从钢包、长水口到中间包、水口的钢液流动的水力学模型。通过对水力学模型RTD曲线的测量,得到了中间包的滞止时间、停留时间及峰值时间,通过对这些时间的相应计算,对目前使用的中间包结构进行了优化。
In order to improve the availability of the tundish the structural parameters of the flow control devices with different weir,dam and turbulence inhibitor was optimized to increase the retention time of the hot metal so as to remove inclusions as much as possible and improve the uniformity of temperature and compositions of the hot metal in tundish and to reduce the dead zone in the tundish and ensure a full mixture zone in an appropriate size and a plug volume zone. The present paper studies the tundish of the slab continuous caster in JISCO. A 1 ： 3 scale water model simulating the hot metal flowing from ladle, long nozzle to tundish is established. By measuring the RTD curves in the water model the retention time, peak time and mean residence time are obtained and by calculating these time values the structure of the tundish is optimized.
出处
《炼钢》
CAS
北大核心
2008年第2期15-18,33,共5页
Steelmaking
