Physical and Numerical Modeling of the Slag Splashing Process

• Published in: Materials Vol. 14; no. 9; p. 2289
• Main Authors: Sinelnikov, Viktor, Szucki, Michał, Merder, Tomasz, Pieprzyca, Jacek, Kalisz, Dorota
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 28.04.2021; MDPI
• Subjects: Chemical composition; Computers; Gas flow; Gas streams; Geometry; Laboratory tests; Mathematical models; Nitrogen; Nozzles; numerical modeling; oxygen-converter process; Parameters; physical modeling; Simulation; Slag; Slag splashing; Splashing; steel; Steel converters; steel; slag splashing; physical modeling; oxygen-converter process; numerical modeling
• ISSN: 1996-1944; 1996-1944
• DOI: 10.3390/ma14092289

The influence of technological factors on the process of slag splashing was analyzed in the paper. The problems were solved in several stages using our own and commercial calculation programs and laboratory tests. Based on the performed calculations and simulations, factors affecting the slag splashing were determined. It was observed that the high efficiency of the process can be achieved by optimizing numerous technological parameters, e.g., flow parameters, pressure, and temperature of the nitrogen stream, height and angle of the lance position, as well as slag height into which the gas stream enters and MgO consumption. In addition, the chemical and mineralogical composition of the slag and its physicochemical parameters should be also considered. The obtained results of numerical simulations of slag splashing in the oxygen converter coincide with the results of experiments carried out using the physical model of oxygen converter. This means that the simulations well represent the real course of the slag splashing process for the studied variants.