The External Desulphurisation of Hot Metal.

  • Keith Gregory

    Student thesis: Doctoral ThesisDoctor of Philosophy

    Abstract

    This thesis is based on works trials and laboratory model
    studies.

    Iron samples taken on the works showed that a sample from the
    torpedo gave an adequate estimate of the iron sulphur level.

    The mixing characteristics of iron during the calcium carbide
    based torpedo injection process were examined using a model. The
    modelling criterion was that the energy input per unit mass of
    liquid should be the same for the model and the plant. The mixing
    time was primarily dependent on the lance immersion depth and the
    rate at which the gas evolving agent was introduced to the iron.
    The effect on the process of torpedo internal skulls was demonstrated.
    The results of this model work were confirmed by plant data, and
    were used in making adjustments to the operation of the plant.

    A torpedo model was used to study the effects of its mouth
    shape on desulphurisation slag removal. The most significant factor
    was the metal pouring rate but the mouth shape determined the ease
    of removing the large lumps of slag which occur.

    Date of AwardDec 1980
    Original languageEnglish
    Awarding Institution
    • Aston University

    Keywords

    • external desulphurisation
    • hot metal

    Cite this

    '