用顶吹CO2-NaOH溶液体系模拟了RH-KTB顶吹氧溶氧过程。通过对碱液吸收CO2反应动力学的研究，考察了操作参数对RH-KTB顶吹氧脱碳过程中溶氧反应的影响。结果表明：提高气相中氧分压、增加提升氩气流量或采用低枪位喷吹都有利于加速溶氧脱碳。实验中还发现：顶吹氧气流量对容积传质系数影响很小，对熔池内的钢液流动状态影响不大。
The top injection of oxygen gas in RH-KTB degasser has been simulated by the top injection of CO2 in a physical model with NaOH solution. The effects of operation parameters on oxygen absorption of molten steel in RH-KTB degasser with top oxygen injection were analyzed through the kinetics study of NaOH solution absorbing CO2. The results showed that high oxygen partial pressure in the vacuum vessel, large flow rate of argon gas and low position of top oxygen injecting lance will accelerate the decarburization in RH-KTB reactor. It is also found that the oxygen gas flow rate has little effect on the volume mass coefficient of liquid phase.
参考文献
| [1] | Kuwabara T;Umezawa K;Mori K et al.Investigation of Decarburization Behavior in RH-Reactor and Its Operation Improvement[J].Transactions of the Iron and Steel Institute of Japan,1988,28(04):305-314. |
| [2] | Kato Y;Nakato H;Fujii T et al.Fluid Flow in Ladle and Its Effect on Decarburization Rate in RH Degasser[J].ISIJ International,1993,33(10):1088-1094. |
| [3] | Seshadri V .Cold Model Studies of RH Degassing Process[J].Transactions of the Iron and Steel Institute of Japan,1986,26(02):133-138. |
| [4] | 郁能文,魏季和.RH精炼过程中钢液流动特性的水模型[C].东北大学学报(自然科学版)(第19卷增刊),1998:118～120. |
| [5] | 稻田爽一;渡边哲弥 .NaOH水溶液ヘのCO2吸收の速度に及ぼすガスジェツト特性の影[J].と,1976,62(07):807-816. |
| [6] | 朱苗勇;萧泽强.钢的精炼过程数学物理模拟[M].北京:冶金工业出版社,1998 |
| [7] | 张华书;王哲;肖泽强.利用NaOH水溶液-CO2系模型研究喷吹钢包内裸露液面的吸气速率[A].鞍山,1984:271-285. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%