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Modelling on melting of sponge iron particles in iron‐bath
Author(s) -
Zhang Liuyi
Publication year - 1996
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199605521
Subject(s) - melting point , chemistry , metallurgy , die (integrated circuit) , smelting , polymer chemistry , thermodynamics , physics , materials science , nanotechnology , organic chemistry
In this work the melting process of sponge iron particles in iron‐bath is mathematically modelled. Based on the fact that the heat conductivity of sponge iron is much smaller than that of dense iron, a simplified analytical solution for the system has been derived. This solution agrees very well with the exact one from numerical calculation. The melting time and melting course of sponge iron particles are calculated. The melting time depends mostly on the particle radius. The amount of un‐molten substance in the iron‐bath at continuous feeding of sponge iron is estimated. The results show that under smelting reduction conditions the melting runs fast and must not be the rate determining step of the whole process.