根据相似原理采用修正Froude准数相等,对承德150t提钒转炉进行物理模拟,选取相似比为1∶6。通过研究确定了纯顶吹状态下熔池冲击面积和穿透深度的变化规律,并得出冲击直径与穿透深度比值为3.1时混匀效果最佳。对底枪布置研究确立了底枪支数和布置方式对熔池混匀的影响,此试验中8支底枪非对称布置熔池混匀时间最短,平均混匀时间为38.6s。 Based on the similar principle, the modified Froude number is equal and the simulation of Chengde 150t vanadium converter is carried out. The similar ratio is 1: 6. Through the research, the change law of the impact area and penetration depth of molten pool under pure top blowing condition was determined, and the best mixing effect was obtained when the ratio of impact diameter to penetration depth was 3.1. The research on the bottom gun arrangement established the influence of the number and arrangement of bottom guns on the mixing of the molten pool. In this test, the mixing time of the asymmetrical arrangement of the eight bottom guns was the shortest, with the average mixing time being 38.6 seconds.