Analysis of the effect of ventilation bars on the packing structure of sinter bed by DEM simulation

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Abstract

The effect of ventilation bars on the porosity of a sinter bed charged on a sinter machine was investigated. The behavior of the sinter feed was calculated by discrete element method (DEM) simulation. By taking into account the adhesion force, the sinter feed in the wet state was represented and the simulation parameters were determined to reproduce the experimental values of the angle of repose. The porosity of the sinter bed was calculated, and the mechanism of the formation of the packing structure and the cause of the distribution of porosity in each region were clarified. As a result, it is shown that in the case of shear flow, the higher the powder pressure during flow, the higher the porosity.

Original languageEnglish
Article number3836
JournalEnergies
Volume13
Issue number15
DOIs
Publication statusPublished - 2020 Aug

Keywords

  • Adhesion force
  • DEM
  • Packing structure
  • Porosity
  • Simulation
  • Sinter

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Control and Optimization
  • Electrical and Electronic Engineering

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