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Numerical Investigation of the Transient Multiphase Flow in an Ironmaking Blast Furnace

Journal Article


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Abstract


  • Discrete particle simulation (DPS) has been applied to multiphase flow modelling in an ironmaking blast

    furnace (BF), including burden distribution at the top, gas–solid flow in the BF shaft and raceway, and liquid–solid

    flow in the hearth. In this work, the approach is further extended to take into account the transient

    features of gas and particle flow coupled with liquid tapping operation. In the simulation, two types of particles

    of coke and ore with different physical properties are considered, together with different shapes of the

    cohesive zone and the shrinkage of size of ore particles in the cohesive zone to present ore reduction. The

    simulated results show that the flow of both solid and gas phases varies spatially and temporally, particularly

    in the cohesive zone. Gas flow is strongly affected by the layered structure of ore and coke particles in

    the cohesive zone. A coke-free zone can form in the hearth, and the boundary profile between the coke-free

    zone and the coke bed depends on the amount of liquid accumulated in the hearth, gas and solid flow rates

    in the raceway, and coke consumption in different regions at the interface of liquid and the coke bed. The

    results show that the complicated transient multiphase-flow in a BF can be captured by the present approach

    which may be extended to account for heat transfer and chemical reaction in the future.

UOW Authors


  •   Zhou, Zongyan (external author)
  •   Zhu, Haiping (external author)
  •   Yu, Aibing (external author)
  •   Zulli, Paul

Publication Date


  • 2010

Citation


  • Zhou, Z., Zhu, H., Yu, A. & Zulli, P. (2010). Numerical Investigation of the Transient Multiphase Flow in an Ironmaking Blast Furnace. ISIJ International, 50 (4), 515-523.

Scopus Eid


  • 2-s2.0-77953635983

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=7633&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/6603

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 515

End Page


  • 523

Volume


  • 50

Issue


  • 4

Place Of Publication


  • Japan

Abstract


  • Discrete particle simulation (DPS) has been applied to multiphase flow modelling in an ironmaking blast

    furnace (BF), including burden distribution at the top, gas–solid flow in the BF shaft and raceway, and liquid–solid

    flow in the hearth. In this work, the approach is further extended to take into account the transient

    features of gas and particle flow coupled with liquid tapping operation. In the simulation, two types of particles

    of coke and ore with different physical properties are considered, together with different shapes of the

    cohesive zone and the shrinkage of size of ore particles in the cohesive zone to present ore reduction. The

    simulated results show that the flow of both solid and gas phases varies spatially and temporally, particularly

    in the cohesive zone. Gas flow is strongly affected by the layered structure of ore and coke particles in

    the cohesive zone. A coke-free zone can form in the hearth, and the boundary profile between the coke-free

    zone and the coke bed depends on the amount of liquid accumulated in the hearth, gas and solid flow rates

    in the raceway, and coke consumption in different regions at the interface of liquid and the coke bed. The

    results show that the complicated transient multiphase-flow in a BF can be captured by the present approach

    which may be extended to account for heat transfer and chemical reaction in the future.

UOW Authors


  •   Zhou, Zongyan (external author)
  •   Zhu, Haiping (external author)
  •   Yu, Aibing (external author)
  •   Zulli, Paul

Publication Date


  • 2010

Citation


  • Zhou, Z., Zhu, H., Yu, A. & Zulli, P. (2010). Numerical Investigation of the Transient Multiphase Flow in an Ironmaking Blast Furnace. ISIJ International, 50 (4), 515-523.

Scopus Eid


  • 2-s2.0-77953635983

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=7633&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/6603

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 515

End Page


  • 523

Volume


  • 50

Issue


  • 4

Place Of Publication


  • Japan