利用水模试验方法模拟底吹方式对转炉吹炼过程中渣-钢界面搅拌与传质效果的影响，研究底吹强度、底吹枪个数等因素对渣-钢界面搅拌与传质的影响规律。试验研究结果表明，由于底吹搅拌作用，使渣-钢间传质速率呈规律性变化。不同底吹枪个数与底吹搅拌强度的组合，存在渣-钢界面传质速率的最大值。单支底吹枪的底吹强度为0.020～0.025 m3/（t·min）时，渣-钢间传质速率最大。
By using water model to simulate the effect of bottom blowing on turbulence and mass transfer at the slag-steel interface during LD process,the current study aimed to investigate the effects of the gas flow rate and the number of bottom nozzles on the mass transfer and interface turbulence between slag and steel. The results showed that the mass transfer rate between slag and steel changed regularly under different conditions of bottom stirring. The study obtained the maximum mass transfer rate with the combination of the number of bottom nozzles and the gas flow rate. It also showed that the mass transfer rate can reach the maximum if the bottom blowing intensity of individual nozzle was 0.020-0.025 m3/(t·min).
参考文献
| [1] | S. K. Ajmani;A. Chatterjee.Cold model study of mixing and mass transfer in LD converters at Tata Steel[J].Ironmaking & Steelmaking: Products and applications,19964(4):335-345. |
| [2] | 温良英;陈登福;董凌燕;白晨光;周远华;廖明;章金楠.复吹转炉不同冶炼时期熔池行为的水模拟研究[J].钢铁研究学报,2006(6):14-16. |
| [3] | Zhou, Xiaobin;Ersson, Mikael;Zhong, Liangcai;Jonsson, Par.Optimization of Combined Blown Converter Process[J].ISIJ International,201410(10):2255-2262. |
| [4] | 丁小明;李京社;陈永峰;田东方.复吹提钒转炉熔池形状与底枪布置方式[J].钢铁,2012(4):42-46. |
| [5] | 李子亮;苍大强;倪松明;欧阳成.转炉局域搅拌和混匀效果的水模型实验[J].重庆大学学报,2015(2):45-50. |
| [6] | 丁满堂.半钢炼钢复吹工艺优化[J].钢铁,2009(05):32-34. |
| [7] | 杨文远;李林;彭小艳;王明林;高飞;吴鸿祚.转炉铁水脱磷预处理水模试验[J].钢铁,2015(9):34-40. |
| [8] | 赖兆奕;谢植;钟良才.90 t 复吹转炉底吹工艺优化与应用[J].炼钢,2008(1):5-8. |
| [9] | 吴伟;邹宗树;吴志宏;李永祥;郭振和.复吹转炉钢-渣间容量传质系数的水-油模型[J].特殊钢,2004(2):19-21. |
| [10] | Vikas SINGH;Surya Narayan LENKA;Satish Kumar AJMANI.A Novel Bottom Stirring Scheme to Improve BOF Performance through Mixing and Mass Transfer Modelling[J].ISIJ International,200912(12):1889-1894. |
| [11] | 刘浏,郭征.搅动熔池中的传质过程[C].东北大学学报(自然科学版)(第19卷增刊)（第七届全国冶金反应工程学学术会议：论文专辑）,1998:85~89. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%