Observation of the Effect of Various Operating Factors on the Cohesive Zone Using the Blast Furnace Irregularity Simulator

Tae Jun Park, Soon Ki Min, Hyuk Kim, Dong Joon Min

Research output: Contribution to journalArticlepeer-review

Abstract

The blast furnace (BF) process is highly complex, involving multiple phases (gases, granular solids, liquids, and powders) undergoing various chemical and physical phenomena. Any improvement in BF productivity under a given set of operating conditions necessitates a better gas flow distribution through a layered burden structure in the BF. However, it is extremely difficult to directly measure or predict the internal flows in a BF. The main zone of unstable motion in a BF is generally the cohesive zone. Herein, the cause of unstable behavior in a BF is investigated by directly observing the behavior of the cohesive zone using a BF irregularity simulator. It is found that the shape of the cohesive zone is directly influenced by the blast conditions and the height of the deadman, as well as varied change. As the blast volume increased, the height of the top level of the cohesive zone increased and the change in the temperature profile of the cohesive zone according to the difference in blast volume. Thus, it is possible to understand and estimate the unstable motion in a BF under operation by observing the real-time behavior of the burden, using a BF irregularity simulator.

Original languageEnglish
Article number2000315
JournalSteel Research International
Volume92
Issue number2
DOIs
Publication statusPublished - 2021 Feb

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Observation of the Effect of Various Operating Factors on the Cohesive Zone Using the Blast Furnace Irregularity Simulator'. Together they form a unique fingerprint.

Cite this