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 injection can get the best stirring effect and the mixing time is only 47.6s. On this basis, the 10° swirl-type oxygen lance was experimented in 150t 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] | |
[2] | 吴龙,李士琦,迟桂友,等.承钢100t转炉提钒的过程特征.钢铁研究学报[J],2010,22(12):14.[2] 陈勇,张大德.转炉提钒工艺的开发与优化.中国冶金[J],2003,1:36.[3] 袁章福,徐安军,顾克井,等.旋流喷头的参数确定及其应用研究.炼钢[J],1998,5:37.[4] 袁章福,徐安军,李京社,等.旋流喷头的特性和用于溅渣护炉的分析.钢铁[J],1998,33(12):17.[5] 杨文远,丁永良,王明林,等.大型转炉多孔喷头射流与熔池作用的水模研究.钢铁[J],2004,39(3) :16.[6] 包丽明,刘坤,吕国成,等.转炉氧枪顶吹工艺的水力学模拟.特殊钢[J],2007,28(5):13.[7] 刘竹林,高泽平,贺志宏.300 t转炉水力模型实验研究.特殊钢[J],2007,28(2):16.[8] 朱英雄,于华财,宋满堂,等.120 t顶底复吹转炉水模研究.东北大学学报(自然科学版)[J],1996,17(1):51.[9] 杨素波,罗泽中,文永才,等.含钒转炉钢渣中钒的提取与回收.钢铁[J],2005,40(4):72.[10] M.Aarabi-Karasgani,F.Rashchi,N.Mostoufi,etal.Leaching of vanadium from LD converter slag using sulfuric acid.Hydrometallurgy[J],2010,102:14. |
- 下载量()
- 访问量()
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%