Influence of bottom purging on the metallurgical results and the BOF process

Thomas Kollmann

Research output: ThesisMaster's Thesis

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Abstract

Higher sophisticated products and unsteady charge materials require an economically optimized BOF-Process operation. Installing a CIP-System (Converter-Inertgas-Purging) enhances the performance of the top blowing BOF-Process (original LD-Process) from the metallurgical and procedural point of view. The CIP-System consists of twelve independent and separate controllable MHP24 plugs (Multi-Hole-Plugs) in ecliptic bottom arrangement. This thesis evaluates the advantages of inertgas bottom purging in direct comparison to a top blowing vessel (232 t tapping weight). Process adjustments (e.g. slag, fluxes, blowing and purging pattern) are discussed. Maintenance philosophies and their influence on the availability of the bottom purging are considered as well as down-times and total gas amounts on the metallurgical results.
Translated title of the contributionEinfluss des Bodenspülens auf die metallurgischen Ergebnisse und die LD-Prozessführung
Original languageEnglish
QualificationDipl.-Ing.
Awarding Institution
  • Montanuniversität
Supervisors/Advisors
  • Schenk, Johannes, Supervisor (internal)
  • Cappel, Jürgen, Supervisor (external), External person
Award date25 Jun 2010
Publication statusPublished - 2010

Bibliographical note

embargoed until 11-05-2015

Keywords

  • BOF process bottom purging slag practice BOF maintenance

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