复吹转炉底吹喷粉的物理模拟

Translated title of the contribution: Physical simulation of bottom powder injection in combined blown converter

Biao Tang, Yi Bo He, Zongshu Zou, Ai Bing Yu

Research output: Contribution to journalArticleResearch

6 Citations (Scopus)

Abstract

A cold model of top and bottom blown converter with bottom powder injection was established to investigate the powder distribution and penetration ratio in melt bath. Water, salt-coated hollow alumina particles and vacuum-pump oil were used to simulate liquid steel, limestone powder and slag, respectively. The powder distribution under different bottom blowing arrangements was studied by using the image processing method to find out the optimum bottom tuyere arrangement. With the optimum bottom tuyere arrangement, the effects of solid/gas ratio and powder particle size on powder penetration ratio were studied. The results show that the powder penetration ratio increases with the increase of solid/gas ratio and powder particle size. Under the laboratory conditions, the solid/gas ratio of 30~40 and the powder particle size 0.212~0.380 mm are suggested.

Translated title of the contributionPhysical simulation of bottom powder injection in combined blown converter
Original languageChinese
Pages (from-to)236-240
Number of pages5
JournalDongbei Daxue Xuebao (Ziran Kexue Ban)
Volume35
Issue number2
DOIs
Publication statusPublished - Feb 2014
Externally publishedYes

Keywords

  • Bottom powder injection
  • Powder distribution
  • Powder particle size
  • Powder penetration ratio
  • Solid/gas ratio
  • Steelmaking converter

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