Modelling of ironmaking blast furnace: Comparison of slot and sector geometries

Yansong Shen, Baoyu Guo, Peter Austin, Sheng Chew, Aibing Yu

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

1 Citation (Scopus)

Abstract

In this paper, a mathematical model is developed to describe the complex behaviours of gas-solid-liquid multiphase flow, their heat and mass transfers and chemical reactions in an ironmaking blast furnace. The model is used to investigate and visualise the effects of different model configurations, viz. slot vs. sector geometry, on the location/shape of cohesive zone and other key process variables such as velocity, temperature, component concentration of each phase, reduction degree and gas utilization. The comparisons show that predictions of fluid flow and thermo-chemical phenomena using the slot and sector geometries are quite different, e.g. the sector geometry predicts a higher cohesive zone, faster reduction and a lower gas utilization at furnace top. This implies that the model geometry setting is significant when numerically examining the multiphase behaviours inside a blast furnace. The model provides a cost-effective method for understanding and optimizing the blast furnace operation for better stability and productivity.

Original languageEnglish
Title of host publication6th Int. Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012 - Including Proceedings from the 42nd Ironmaking and Raw Materials Seminar, and the 13th Brazilian Symp. on Iron Ore
PublisherCurran Associates
Pages1-12
Number of pages12
Volume1
ISBN (Print)9781627480215
Publication statusPublished - 2012
Externally publishedYes
EventInternational Conference on Science and Technology of Ironmaking 2012 - Rio de Janeiro, Brazil
Duration: 14 Oct 201218 Oct 2012
Conference number: 6th

Conference

ConferenceInternational Conference on Science and Technology of Ironmaking 2012
Abbreviated titleICSTI 2012
CountryBrazil
CityRio de Janeiro
Period14/10/1218/10/12
Other6th International Congress on the Science and Technology of Ironmaking 2012 (ICSTI)
Proceedings of a meeting held 14-18 October 2012, Rio de Janeiro, Brazil. Including Proceedings from the 42nd Ironmaking and Raw Materials Seminar, and the 13th Brazilian Symposium on Iron Ore

Keywords

  • Blast furnace
  • CFD
  • Modelling
  • Multiphase flow
  • Sector
  • Slot

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