Effect of nozzle twisted oxygen lance on flow field and dephosphorisation rate in converter steelmaking process. (21st October 2017)

• Record Type: Journal Article
• Authors: Liu, F.; Sun, D.; Zhu, R.; Zhao, F.; Ke, J.
• Is Part Of: Ironmaking & steelmaking. Volume 44:Number 9(2017)
• Page Start: 640
• Page End: 648
• Publication Date: 2017-10-21
• Subjects: Converter -- Oxygen lance -- Water experiment -- Numerical simulation; Iron industry and trade -- Periodicals; Steel industry and trade -- Periodicals; 669.1
• DOI: 10.1080/03019233.2016.1226562
• Languages: English
• ISSNs: 0301-9233

Abstract

Abstract : The stirring ability and flow field characteristic of conventional and nozzle twisted oxygen lance (Twisted angles are 4°, 8° and 12°, respectively) on the molten bath were analysed. The mixing time, impacting depth and impacting radius are measured. Flow field characteristics of multi-phase flow are calculated by numerical simulation. Compared with conventional oxygen lance at industrial application research, it shows that the 8° oxygen lance could stir molten better in steelmaking process for the 120t dephosphorisation converter. These findings agree well with the experimental results of the water experiments and the numerical simulations. Finally, an optimal twisted angle is determined.