Effect of granule structure on the combustion behavior of coke breeze for iron ore sintering

Yasuhiro Tobu, Masanori Nakano, Terushige Nakagawa, Tetsuya Nagasaka

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

In order to improve the coke combustion efficiency during iron ore sintering, the effect of coke granule structure was investigated with a TG-DTA and a new combination heating equipment capable of establishing similar heating pattern to the actual sintering bed. The results were analyzed as a function of granule type and neighboring specie as follows: The granule type was crucial to the combustion behavior of granules. On the other hand, the effect of neighbors was distinct over core coke particles; meanwhile, the effect remained uncertain in pellet type granules. The authors recommend composite type granules (fine coke particles adhering on a core particle) for the best choice. The type should bring 1.2% save of coke consumption and 2.3% increase in the heat front speed in comparison to coke particles of single type.

Original languageEnglish
Pages (from-to)1594-1598
Number of pages5
JournalIsij International
Volume53
Issue number9
DOIs
Publication statusPublished - 2013 Jan 1

Keywords

  • Agglomeration
  • Coke combustion
  • Granule structure
  • Iron ore sintering

ASJC Scopus subject areas

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

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