CFD modeling and applications of pulverized coal injection in blast furnace

Yansong Shen, Aibing Yu, Paul Zulli

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

1 Citation (Scopus)

Abstract

Aiming to understand the complicated phenomena of pulverized coal injection (PCI) process in blast furnace (BF), several mathematical models have been developed with the support of physical experiments. These models are featuring from coal combustion in a pilot-scale test rig, to coal combustion in a real BF, and then to coal/coke combustion in a real BF, respectively. This paper reviews these PCI models in aspects of model developments and model applicability. The model development is firstly discussed in terms of model formulation, their new features and geometry/regions considered. The model applicability is then discussed in terms of main findings followed by the model evaluation on their advantages and limitations. It is indicated that the three PCI models are all able to describe PCI operation qualitatively. The model of coal/coke combustion in a real BF is more reliable for simulating in-furnace phenomena of PCI operation qualitatively and quantitatively. Such model gives a more reliable burnout prediction over the raceway surface, which could better represent the amount of unburnt char entering the coke bed. These models are useful for understanding the flow-thermochemical behaviors and then optimizing the PCI operation in practice.

Original languageEnglish
Title of host publicationAISTech 2011 Iron and Steel Technology Conference
Pages495-505
Number of pages11
Publication statusPublished - 2011
Externally publishedYes
EventThe Iron & Steel Technology Conference and Exposition 2011 - Indianapolis, United States of America
Duration: 2 May 20115 May 2011

Conference

ConferenceThe Iron & Steel Technology Conference and Exposition 2011
Abbreviated titleAISTech 2011
CountryUnited States of America
CityIndianapolis
Period2/05/115/05/11

Keywords

  • Blast furnace
  • Mathematical modeling
  • Pulverized coal injection

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