当前位置: X-MOL 学术J. Iron Steel Res. Int. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Development and application of a multi-graphite electrode DC plasma tundish heating
Journal of Iron and Steel Research International ( IF 2.5 ) Pub Date : 2022-04-23 , DOI: 10.1007/s42243-022-00778-4
Yong Wang , Cun Wang , Meng-jing Zhao , Jing-xin Song , Shu-feng Yang , Jing-she Li

The world’s first three-graphite electrode direct current (DC) plasma heating system (2500 kW) was successfully put into production on the 50-t tundish of a two-strand slab caster. The single metallic torch plasma tundish heaters were reviewed. In addition, the induction heating system was also estimated. The three-graphite electrode DC plasma tundish heating (PTH) system does not require any electrode to be fitted to the tundish. Five electrodes can be used to realize uniform and fast heating of the six-strand tundish. Heating with high power can effectively eliminate the steep temperature drop of the molten steel in the tundish during ladle change-over. The system has turned out to be very reliable, simple, and maintenance-free. The heating rate is high within 0.5 to 2.0 °C/min. Some heats with ultra-low superheat (2.6–11.0 °C) were observed, and the molten steels were successfully cast by the powerful heating capacity and good control performance of the system in the practical production. It can be concluded that continuous casting with superheat of 5–10 °C in the tundish was fully realistic with PTH.



中文翻译:

多石墨电极直流等离子中间包加热的研制与应用

世界首台三石墨电极直流(DC)等离子加热系统(2500千瓦)在两流板坯连铸机50吨中间包上成功投产。回顾了单金属炬管等离子中间包加热器。此外,还估计了感应加热系统。三石墨电极直流等离子中间包加热 PTH 系统不需要在中间包上安装任何电极。可采用五个电极实现六流中间包的均匀快速加热。大功率加热可有效消除钢包换包过程中中间包钢水急剧温降。事实证明,该系统非常可靠、简单且免维护。升温速度在0.5~2.0℃/min以内。在实际生产中,观察到部分超低过热度(2.6~11.0℃)的炉号,由于系统强大的加热能力和良好的控制性能,钢水成功浇注。可以得出结论,中间包过热度为 5-10°C 的连铸在使用 PTH 时是完全现实的。

更新日期:2022-04-24
down
wechat
bug