摘要
根据120 t转炉建立三维数学模型,并进行Euler两相流计算,找出底吹透气元件合理的偏心位置,由原8个透气元件均布方式,偏心位置为0.56R(转炉熔池半径)、夹角为45°,优化为6个透气元件,偏心位置0.53R2个、0.65R2个、0.46R2个,两组组合透气砖中心夹角180°,内部夹角30°。生产实践表明,优化后有效地减少底吹气体消耗,提高熔池搅拌功能,碳氧浓度积由优化前的0.002 674降低到0.002 513。
Based on a 120 t converter, the 3-dimensional mathematical model has been established and the calculation of Euler two phases is carried out to get reasonable eccentric position of gas permeable elements for bottom blowing. Original even distribution mode of 8 permeable elements with eccentric position 0. 56 R （ radius of converter bath） at an angle of 45° is optimized and modified to 6 permeable elements of which 2 elements with eccentric position 0. 53 R, 2 elements with 0. 65 R and 2 elements with 0. 46 R, center angle of two group combined gas permeable brick being 180° and inner angle 30°. Production practice shows that after optimization it is available to decrease consumption of bottom blowing gas, increase bath stirring energy and decrease carbon-oxygen concentration product to 0. 002 513 from original 0. 002 674.
出处
《特殊钢》
北大核心
2010年第3期3-5,共3页
Special Steel
关键词
120
t顶底复吹转炉
底吹系统
三维数学模型
工艺优化
120 t top and Bottom Combined Blown Converter, Bottom Blowing System, 3-dimensional Math Model, Process Optimization
