Numerical study on the Influence of Pellet Proportion on Burden Distribution in Blast Furnace

Zhijian Zhao, Henrik Saxén, Yanjun Liu, Xuefeng She*, Qingguo Xue

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)


A mathematical model of the upper part of a 1080 m3 bell-less top blast furnace is established. The influence of the mass proportion of pellet on burden distribution and packed bed structure is analysed by the discrete element method. The results show that the radial segregation of the charge is affected by the pellet ratio: when the proportion of pellets increases from 20% to 40%, the angle of the pile decreases from 32.3° to 27.3°, while the bottom width of the pile increases, and the height and top width of the pile tend to decrease. Furthermore, with the increase of the proportion of pellets, the porosity of the packed bed tends to decrease. For the packed bed within 1 m from the furnace wall, the porosity tends to decrease from the edge to the centre.

Original languageEnglish
Pages (from-to)613-620
Number of pages8
JournalIronmaking and Steelmaking
Issue number6
Early online date22 Nov 2022
Publication statusPublished - 2023
MoE publication typeA1 Journal article-refereed


  • Blast furnace
  • burden distribution
  • discrete element method
  • pellet ratio
  • simulation


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