Module 2: Modern Steelmaking Practice
  Lecture 14: Modern trends in BOF steelmaking
 

What is required for slag splashing?

  • Compositional adjustment of end slag against FeO and MgO concentration. Presence of MgO in the end slag should be greater than 13% to produce a high temperature phase and to increase slag viscosity.
  •  FeO reduces melting temperature of slag and increases the amount of low melting phase in slag. Low melting phase ensures good adhesion between slag and refractory and high melting phase imparts erosion resistance to the lining.
  •   content of slag should be low
  • For   ratio greater then 5, should be added

Figure shows schematic diagram of slag splashing in a converter


Figure 14.1: schematic representation of slag splashing in converter