The Influence of Slenderness Ratios of Multi-Hole Ceramic Filters from S_F - 1.67 to S_F - 8.36 of Filter Surface on Efficiency of Liquid Steel Refining from Non-Metallic Phase

Abstract:

We propose in this publication the introduction of new, additional definition describing the multiple orifice ceramic filters used in research works on the liquid steel filtrations, calling this the filter slenderness ratio. In order to confirm the theoretical assumptions we have performed a series of the laboratory scale experiments (for the filter slenderness ratio S_F - 1.67 to S_F - 8.36). The influence of the filter slenderness on the filtration process efficiency has been determined through variations in quantities and surface shares of the non-metallic phase in the filtrated steel in relation to the non-filtered steel. We present also the results of researches on the separating surfaces between the liquid steel and the ceramic filter material, which in form of photos and scanning microscope microanalyses are put together in the publication.

• Periodical: Solid State Phenomena (Volume 212)
• Pages: 205-208
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.212.205
• Online since: December 2013
• Authors: Krystian Janiszewski, Bożena Gajdzik, Andrzej Wyciślik
• Keywords: Ceramic Filter, Filter Slenderness Ratios, Refining, Solid Non-Metallic Inclusions, Steel

References

[1] K. Janiszewski, Refining of liquid steel in a tundish using the method of filtration during its casting in the CC machine, Archives of Metallurgy and Materials 58 (2013) 509-517.

DOI: 10.2478/amm-2013-0029

[2] K. Janiszewski, The slenderness ratio of the filter used in the process of liquid steel filtration as the additional parameter of the filter form, Steel Research International 84 (2013) 288-296.

DOI: 10.1002/srin.201200077

[3] M. Warzecha, J. Jowsa, P. Warzecha, H. Pfeifer, Numerical and experimental investigations of steel mixing time in a 130t ladle, Steel Research International 79 (2008) 852-860.

DOI: 10.1002/srin.200806210

[4] B. Gajdzik, Environmental aspects strategies and waste logistic system based on the example of  metallurgical company, Metalurgija 48 (1) (2009) 63-67.

[5] K. Michalek, K. Gryc, M. Tkatleckova, D. Bocek, Model study of tundish steel intermixing and operational verification, Archives of metallurgy and materials 57 (2012) 291-296.

DOI: 10.2478/v10172-012-0025-4