正在加载图片...
·218· 工程科学学报,第38卷,增刊1 0.00016 0.05 0.00014 (a) 0 0.00012 -0.05 三0.00010 是0.0000s -0.10 0.00006 -0.15 是0.0304 -0.20 -0.00002 ·底吹流量非对称分配 ·底枪流量非对称分配 0· ·底吹流量平均分配 -0.25 ·底枪流量平均分配 0 46 8 10 0.302 0246 81012 tmin 图9不同底吹流量方案时水中苯甲酸浓度()和无因次量C(b)随吹气时间的变化 Fig.9 Changes of the benzoic acid concentration in water (a)and dimensionless variable C.(b)with blowing time by different bottom blowing flow schemes 11(1):36 3结论 (陈敏,廖广府,李光强,等.210t顶底复吹转炉水模型实验研 (1)加大顶吹供气强度和底吹供气强度能够大大 究.过程工程学报,2011,11(1):36) 促进渣钢反应,提高熔池元素在渣钢间分配比(满足 [5]Jin YL,Wang JJ.Zhou L.Study of hydraulic model experiment on lining protection by slag splashing in 50t BOF-BE.Steelmak- 其他工艺需求的同时,选取大的顶吹、底吹供气 img,2004,20(5):47 强度). (金友林,王建军,周俐.50t复吹转炉溅渣护炉水模试验研 (2)随着底吹气体流量降低,渣钢间容量传质系数 究.炼钢,2004,20(5):47) 降低得明显,建议底吹气体流量不低于0.06m3/(min). [6 Nakanishi K,Kato Y,Nozaki T,et al.Cold model study on the (3)底吹布置方式对渣钢间传质系数有重要影 mixing rate of slag and metal bath in Q-BOP.Tetsu-to-Hagane, 1980,66(9):1307 响。底吹孔数越多,渣钢间容量传质系数越大,底吹孔 7]Paul S,Ghosh D N.Model study of mixing and mass transfer rates 数最好控制在8或12.优化底吹流量分配方案优于流 of slag-metal in top and bottom blown converters.Metall Trans B, 量平均分配方案,建议采用. 1986,17(3):461 [8]Yu YY,Tang P,Zhou L,et al.Water modeling for a 85 t top- 参考文献 bottom combined blown converter at Chongqing Steel.Spec Steel, [1]ZhangH S,Xiao ZQ.Influence of slag/steel mixing state on mass 2006,27(2):31 transport rate.Iron Steel,1987,22(9):21 (鱼洋洋,唐萍,周亮,等.重钢85t复吹转炉的水模型试验 (张华书,肖泽强.渣一钢混合状态对治金速率的影响.钢铁, 特殊钢,2006,27(2):31) 1987,22(9):21) [9]Zeng Y N,Li J G,Han Z J,et al.Experimental study on water Liu L,Guo Z,Li Z.A study of transfer phenomena in a stirred model for a 50t top and bottom combined blown converter at Tang- bath.J Northeast Univ Nat Sci,1998,19(Suppl 1):85 steel.Spec Steel,2010,31(2):21 (刘浏,郭征,李正.搅动熔池中的传质过程.东北大学学报 (曾亚南,李俊国,韩志杰,等.唐钢501复吹转炉水模型的实 (自然科学版),1998,19(增刊1):85) 验研究.特殊钢,2010,31(2):21) B]Lai Z Y,Xie Z,Zhong L C.Influence of bottom tuyere configura- [10]Yang C G,Li Q,Zou Z S.Studyon transfer coefficient of liquid- tion on bath stirring in a top and bottom combined blown convert- liquid system in a metallurgical reactor.Chin J Process Eng, er.1SJ1mt,2008,48(6):793 2009,9(Sppl):226 4]Chen M,Liao G F,Li G Q,et al.Watermodel study on a 210t (杨春光,李强,邹宗树.液一液治金反应器传质系数的模拟研 top-bottom combined blown converter.Chin J Process Eng,2011, 究.过程工程学报,2009,9(增刊):226)工程科学学报,第 38 卷,增刊 1 图 9 不同底吹流量方案时水中苯甲酸浓度( a) 和无因次量 Ck ( b) 随吹气时间的变化 Fig. 9 Changes of the benzoic acid concentration in water ( a) and dimensionless variable Ck ( b) with blowing time by different bottom blowing flow schemes 3 结论 ( 1) 加大顶吹供气强度和底吹供气强度能够大大 促进渣钢反应,提高熔池元素在渣钢间分配比( 满足 其他 工 艺 需 求 的 同 时,选 取 大 的 顶 吹、底 吹 供 气 强度) . ( 2) 随着底吹气体流量降低,渣钢间容量传质系数 降低得明显,建议底吹气体流量不低于0. 06 m3 /( t·min) . ( 3) 底吹布置方式对渣钢间传质系数有重要影 响. 底吹孔数越多,渣钢间容量传质系数越大,底吹孔 数最好控制在 8 或 12. 优化底吹流量分配方案优于流 量平均分配方案,建议采用. 参 考 文 献 [1] ZhangH S,Xiao Z Q. Influence of slag / steel mixing state on mass transport rate. Iron Steel,1987,22( 9) : 21 ( 张华书,肖泽强. 渣--钢混合状态对冶金速率的影响. 钢铁, 1987,22( 9) : 21) [2] Liu L,Guo Z,Li Z. A study of transfer phenomena in a stirred bath. J Northeast Univ Nat Sci,1998,19( Suppl 1) : 85 ( 刘浏,郭征,李正. 搅动熔池中的传质过程. 东北大学学报 ( 自然科学版) ,1998,19( 增刊 1) : 85) [3] Lai Z Y,Xie Z,Zhong L C. Influence of bottom tuyere configura￾tion on bath stirring in a top and bottom combined blown convert￾er. ISIJ Int,2008,48( 6) : 793 [4] Chen M,Liao G F,Li G Q,et al. Watermodel study on a 210 t top-bottom combined blown converter. Chin J Process Eng,2011, 11( 1) : 36 ( 陈敏,廖广府,李光强,等. 210 t 顶底复吹转炉水模型实验研 究. 过程工程学报,2011,11( 1) : 36) [5] Jin Y L,Wang J J,Zhou L. Study of hydraulic model experiment on lining protection by slag splashing in 50 t BOF-LBE. Steelmak￾ing,2004,20( 5) : 47 ( 金友林,王建军,周俐. 50 t 复吹转炉溅渣护炉水模试验研 究. 炼钢,2004,20( 5) : 47) [6] Nakanishi K,Kato Y,Nozaki T,et a1. Cold model study on the mixing rate of slag and metal bath in Q-BOP. Tetsu-to-Hagane, 1980,66( 9) : 1307 [7] Paul S,Ghosh D N. Model study of mixing and mass transfer rates of slag-metal in top and bottom blown converters. Metall Trans B, 1986,17( 3) : 461 [8] Yu Y Y,Tang P,Zhou L,et al. Water modeling for a 85 t top￾bottom combined blown converter at Chongqing Steel. Spec Steel, 2006,27( 2) : 31 ( 鱼洋洋,唐萍,周亮,等. 重钢 85 t 复吹转炉的水模型试验. 特殊钢,2006,27( 2) : 31) [9] Zeng Y N,Li J G,Han Z J,et al. Experimental study on water model for a 50 t top and bottom combined blown converter at Tang￾steel. Spec Steel,2010,31( 2) : 21 ( 曾亚南,李俊国,韩志杰,等. 唐钢 50 t 复吹转炉水模型的实 验研究. 特殊钢,2010,31( 2) : 21) [10] Yang C G,Li Q,Zou Z S. Studyon transfer coefficient of liquid￾liquid system in a metallurgical reactor. Chin J Process Eng, 2009,9( Suppl) : 226 ( 杨春光,李强,邹宗树. 液--液冶金反应器传质系数的模拟研 究. 过程工程学报,2009,9( 增刊) : 226) · 812 ·
<<向上翻页
©2008-现在 cucdc.com 高等教育资讯网 版权所有