The Analysis of Two-Phase Jet in Pneumatic Powder Injection into Liquid Alloys
Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32769
The Analysis of Two-Phase Jet in Pneumatic Powder Injection into Liquid Alloys

Authors: J. Jezierski, K. Janerka

Abstract:

The results of the two-phase gas-solid jet in pneumatic powder injection process analysis were presented in the paper. The researches were conducted on model set-up with high speed camera jet movement recording. Then the recorded material was analyzed to estimate main particles movement parameters. The values obtained from this direct measurement were compared to those calculated with the use of the well-known formulas for the two-phase flows (pneumatic conveying). Moreover, they were compared to experimental results previously achieved by authors. The analysis led to conclusions which to some extent changed the assumptions used even by authors, regarding the two-phase jet in pneumatic powder injection process. Additionally, the visual analysis of the recorded clips supplied data to make a more complete evaluation of the jet behavior in the lance outlet than before.

Keywords: injection lance, liquid metal, powder injection, slip velocity, two-phase jet

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1331209

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1573

References:


[1] Holtzer, M., Niesler, M., Podrzucki, C., & Rupniewski, M. (2006). Using cupola for recycling foundry dusts. Archives of Foundry, Vol. 6, No. 20, pp. 111-121, ISSN 1897-3310
[2] Senk D., Gudenau H. W., Geimer S., Gorbunowa E. (2006) ÔÇÿDust Injection in Iron and Steel Metallurgy- ISIJ International, Vol. 46, No. 12, pp. 1745-1751.
[3] L. I. Leont-ev et al. (2007) ÔÇÿPneumatic transportation systems at metallurgical enterprises- Steel in Translation, Vol. 37, No. 12, pp. 1042-1046.
[4] Janerka, K. (2010). The recarburization of the ferrous alloys, Silesian University of Technology, ISBN 978-83-7335-704-4, Gliwice, Poland.
[5] Jezierski, J., Janerka, K., & Szajnar, J. (2006). Powder injection into liquid alloys as a tool for its quality improving. Archives of Foundry, Vol. 6, No. 18, pp. 535-540, ISSN 1897-3310.
[6] Jezierski, J., Jura, S., Janerka, K. (2001). Pneumatic injection of FeCr into liquid cast iron. Archives of Foundry, Vol. 1, No. 1 (2/2), ISSN 1897-3310.
[7] Jezierski, J., Jura, S., Janerka, K. (2001). Pneumatic injection of FeSi into the liquid cast iron. Archives of Foundry, Vol. 1, No. 1 (1/2), pp. 45-50, ISSN 1897-3310.
[8] Scheepers, E., Eksteen, J.J., Aldrich, C. (2006). Optimization of the lance injection desulphurization of molten iron using dynamic modeling. Minerals Engineering, Vol. 19, pp. 1163-1173.
[9] Jezierski, J., & Janerka, K. (2008). Pneumatic powder injection technique as a tool for waste utilization. International Journal of Environment and Waste Management, Vol. 6, No. 2, pp. 636-646, ISSN 1478-9876.
[10] Limmaneevichitr, C., Eidhed, W. (2003). Novel technique for grain refinement in aluminum casting by Al-Ti-B powder injection. Materials Science and Engineering, Vol. A355, pp.174-179.
[11] Kosowski, A. (1982). The kinetics of the cast iron recarburization in induction furnace, Foundry Review, No. 1-3, (January-March, 1982), pp. 11-14, ISSN 0033-2275.
[12] Janerka, K., Gawronski, J., & Jezierski, J. (2004). The diphase stream surface in the powder injection process. Archives of Foundry, No. 14, pp. 189-196, ISSN 1897-3310.
[13] Engh, T.A., & Larsen, K.: (1979). Penetration of particle-gas jets into liquids. Ironmaking and Steelmaking, No. 6, pp. 268-273, ISSN 0301- 9233.
[14] Farias, L.R., & Irons, G.A., (1986). A Multi-Phase Model for Plumes in Powder Injection Refining Processes. Metallurgical Transactions B, Vol. 17B, No. 4, (March, 1986), pp. 77-85, ISSN 1879-1395.
[15] Yan, F., Rinoshika, A. (2011). Application of high-speed PIV and image processing to measuring particle velocity and concentration in a horizontal pneumatic conveying with dune model. Powder Technology, Vol. 208, pp. 158-165.
[16] Zheng, Y., Liu, Q. (2011). Review of techniques for the mass flow rate measurement of pneumatically conveyed solids. Measurement, Vol. 44, pp. 589-604.
[17] Jaworski, A.J., Dyakowski, T. (2007). Observations of ÔÇÿÔÇÿgranular jump-- in the pneumatic conveying system. Experimental Thermal and Fluid Science, Vol. 31, pp. 877-885.
[18] Davies, T.W., Caretta, O., Densham, C.J., Woods, R. (2010). The production and anatomy of a tungsten powder jet. Powder Technology, Vol. 201, pp. 296-300.
[19] Jezierski, J., Szajnar, J. (2007). Character of diphase stream force in powder injection technique. Journal of Achievements in Materials and Mechanical Engineering, Vol. 20, iss. 1/2, pp. 455-458.
[20] Jezierski, J., Szajnar. (2007). Diphase stream force in pneumatic powder injection. International Journal of Computational Materials Sciences and Surface Engineering, Vol. 1, no. 4, pp. 479-493.
[21] Jezierski, J., Szajnar. (2006). Method and new lance for powder injection into liquid alloys. Journal of Achievements in Materials and Mechanical Engineering, Vol. 17, iss. 1/2, pp. 349-352.
[22] Jezierski, J. (2003). Velocity of the ferroalloys particles influence on the parameters of the pneumatic injection of alloy additions into liquid cast iron. Archives of Foundry, vol. 3. No. 10, pp. 307-314.
[23] Pi─àtkiewicz, Z. (1999). Pneumatic conveying. Monograph, ISBN 83- 88000-80-2, Silesian University of Technology Publishing, Gliwice, Poland, 280p.