Detailed modelling of packed-bed gas clogging due to thermal-softening of iron ore by Eulerian–Lagrangian approach

Shungo Natsui, Shingo Ishihara, Tatsuya Kon, Ko ichiro Ohno, Hiroshi Nogami

Research output: Contribution to journalArticle

Abstract

Eulerian–Lagrangian numerical scheme is applied for analysing packed-bed-structure constructions involving non-spherical solids, such as metallurgical cokes and ferrous ores, and the high-temperature softening characteristics of such beds. 3D scanning is applied for determining the coke and ore shapes, and a multi-sphere discrete element method is used as the functional scheme for non-spherical solid-particle motion tracking. The transient deformation behaviour of the softening ore is simulated using the advanced discrete element method, and the gas permeability characteristics exhibited by the ore shapes in the ironmaking process are discussed. Based on this model, cases with varied softening behaviour represented by the joint spring coefficient are investigated and the effect of the ore-softening behaviour on the gas permeability is evaluated. It is established that the pathway of the passing rivulet depends upon the softening-ore deformation behaviour.

Original languageEnglish
Article number123643
JournalChemical Engineering Journal
Volume392
DOIs
Publication statusPublished - 2020 Jul 15

Keywords

  • Computational fluid dynamics (CFD)
  • Discrete element method (DEM)
  • Eulerian–Lagrangian coupling
  • Gas permeability
  • Iron-ore softening
  • Packed bed

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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