Abstract
It is common practice to drop aluminum and ferro-alloy additions into teeming ladles either prior to, or during furnace tapping operations. Wate rmodel experiments are described in which spheres of various diameters and specific gravities were dropped from typical industrial heights into water. Maximum penetration distances, trajectories and retention times were measured and compared with theoretical predictions based on transient fluid flow. The relative importance of steady drag, added mass and history forces were demonstrated. Results indicate that immersion times are extremely short (∼1 s) for aluminum additions and low density ferro-alloys. High density ferro-alloys remain immersed considerably longer and penetrate much deeper.
Similar content being viewed by others
References
W. Crafts and D. C. Hilty:Electric Fce Steel Proc. AIME, 1953, vol. 11, pp. 121–50.
R. I. L. Guthrie and L. Gourtsoyannis.C.I.M. Quarterly, 1971, vol. 10, no. 1, pp. 37–46.
L. Gourtsoyannis and R. I. L. Guthrie: 1972, C.I.M. Conference, Halifax, Nova Scotia.
L. Gourtsoyannis, H. Henein, and R. I. L. Guthrie:Physical Chemistry of Production or Use of Alloy Additives, John Farrell, ed., pp. 45–67, T.M.S., A.I.M.E., 1974.
G. Birkhoff and E. H. Zarantonello:Jets, Wakes and Cavities, Academic Press, New York, 1959.
A. May:J. Hydronautics, 1970, vol. 4, p. 140.
A. M. Worthington and R. S. Cole:Phil. Trans. Roy. Soc., 1990, vol. 194, p. 175.
A. May:J. Appl. Phys., 1951, vol. 22, p. 1219.
A. May:J. Appl. Phys., 1952, vol. 23, p. 1362.
M. Shiffman and D. C. Spencer: A.M.P. Report 42, 2R, National Defence Research Committee 1945.
E. G. Richardson:Proc. Phys. Soc., 1948, vol. 61, p. 352.
A. May and J. C. Woodhull:J. Appl. Phys., 1948, vol. 19, p. 1109.
C. E. Lapple and C. B. Shepherd:Ind. Eng. Chem., 1940, vol. 32, pp. 605–17.
L. D. Landau and E. M. Lifshitz:Fluid Mechanics, Pergamon Press, London, 1959.
A. B. Bassett:Phil. Trans. Roy. Soc., 1888, vol. 179, p. 43.
F. Odar and W. S. Hamilton:J. Fluid Mech., 1964, vol. 18, p. 302.
F. Odar:J. Fluid Mech., 1966, vol. 25, p. 691.
R. Clift, F. A. Adamji, and W. R. Richards: Int. Conf. on Particle Technology, 1973, (HT Research Institute, Chicago), pp. 130–36.
H. Henein: McGill University, Montreal. P. O., Unpublished research, 1974.
L. B. Torobin and W. H. Gauvin:Can. J. Chem. Eng., 1961, vol. 39, p. 113.
T. Tanoue, Y. Umeda, H. Ichikawa, and T. Aoki:The Sumitomo Search No. 9 May, 1973, pp. 74–87, also N.O.H.S.C., Atlantic City, New Jersey, May 1974.
E. Achenbach:J. Fluid Mech., 1972, vol. 54, p. 565.
C. N. Davies:Proc. Roy. Soc., 1945, vol. 57, p. 259.
R. Clift and W. H. Gauvin:Can. J. of Chem. Eng. 1971, vol. 49, p. 439.
G. N. Lance:Numerical Methods for High Speed Computers, Lifie and Sons, London, 1960.
Author information
Authors and Affiliations
Additional information
and was formerly Graduate Student, Department of Mining and Metallurgical Engineering, McGill University.
Rights and permissions
About this article
Cite this article
Guthrie, R.I.L., Clift, R. & Henein, H. Contacting problems associated with aluminum and ferro-alloy additions in steelmaking-hydrodynamic aspects. Metall Trans B 6, 321–329 (1975). https://doi.org/10.1007/BF02913576
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02913576