通过水模拟试验,研究了旋流氧枪对熔池的搅拌效果,发现采用10°旋流氧枪喷吹时混匀时间最短,仅为47.6s,因此,对熔池搅拌的效果最佳。在此基础上,采用10°旋流氧枪在现场150t提钒转炉上进行吹炼提钒。研究发现：采用旋流氧枪可保证提钒转炉冶炼过程的正常进行,半钢钒的质量分数比常规氧枪冶炼时降低17.8%,转炉提钒率提高5.1%,钒渣V2O5品位提高0.93%,减少了铁损,为提高提钒转炉钒资源回收率提供了新技术。
Stirring effects of various swirl-type oxygen lances on the molten pool were studied by water model experiment. It is found that 10° swirl-type oxygen lance iniection can get the best stirring effect and the mixing time is only 47.6 s. On this basis, the 10° swirl-type oxygen lance was experimented in 150 t vanadium extraction converter. The study shows that the swirl-type lance can guarantee the normal smelting process, compared with conventional lance, vanadium content of semi-steel is reduced by 17.8%, vanadium extraction rate is increased by 5.1 %, V2O5 content of vanadium slag is increased by 0.93% and iron loss is reduced. It provides a new technology to improve the recovery of vanadium resources in converter.
参考文献
| [1] | 吴龙,李士琦,迟桂友,周学禹,杨超.承钢100t转炉提钒的过程特征[J].钢铁研究学报,2010(12):14-16,32. |
| [2] | 陈勇,张大德.转炉提钒工艺的开发与优化[J].中国冶金,2003(01):36-38. |
| [3] | 袁章福;徐安军;顾克井.旋流喷头的参数确定及其应用研究[J].炼钢,1998(05):37. |
| [4] | 袁章福,徐安军,李京社,包燕平,顾克井,谷永振,徐浩然,杨和平,王春怀,王安江,薛世晓.旋流喷头的特性和用于溅渣护炉的分析[J].钢铁,1998(12):17-20. |
| [5] | 杨文远,丁永良,王明林,石洪志,王涛,朱立新.大型转炉多孔喷头射流与熔池作用的水模研究[J].钢铁,2004(03):16-19. |
| [6] | 包丽明,刘坤,吕国成,杨晶晶.转炉氧枪顶吹工艺的水力学模拟[J].特殊钢,2007(05):13-15. |
| [7] | 刘竹林,高泽平,贺志宏.300 t转炉水力模型实验研究[J].特殊钢,2007(02):16-18. |
| [8] | 朱英雄;于华财;宋满堂 等.120t顶底复吹转炉水模研究[J].东北大学学报(自然科学版),1996,17(01):51. |
| [9] | 杨素波,罗泽中,文永才,何为,王建,陈渝.含钒转炉钢渣中钒的提取与回收[J].钢铁,2005(04):72-75. |
| [10] | Aarabi-Karasgani M;Rashchi F;Mostoufi N et al.Leaching of Vanadium From LD Converter Slag Using Sulfuric Acid[J].Hydrometaliurgy,2010,102:14. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%