Influence of shape of cohesive zone on gas flow and permeability in the blast furnace analyzed by DEM-CFD model

Shigeru Ueda, Tatsuya Kon, Hiroyuki Kurosawa, Shungo Natsui, Tatsuro Ariyama, Hiroshi Nogami

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

Maintaining gas permeability is an important issue to realize low coke rate operation of blast furnace. In present study, the melting behavior of the iron ore and the layer structure in low coke rate operation were introduced in to the DEM-CFD model, and then behaviors of gas and moving bed in the blast furnace were simulated. Influence of shape of cohesive zone in low coke rate operation was investigated, and the effect of coke slit in the cohesive zone on gas flow was demonstrated in the calculation result. Surface area of cohesive zone and intersection angle between the burden layers and cohesive zone will determine the activity of coke slit.

Original languageEnglish
Pages (from-to)1232-1236
Number of pages5
JournalIsij International
Volume55
Issue number6
DOIs
Publication statusPublished - 2015

Keywords

  • Blast furnace
  • Cohesive zone
  • DEM-CFD model
  • Gas permeability
  • Numerical simulation

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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