Static model of shaft furnaces with oxygen injection based on chemical energy maximized utilization

Bing Nan Liu, Qiang Li, Ming Xia Feng, Zong Shu Zou, Ai Bing Yu

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2 Citations (Scopus)

Abstract

In consideration of such problems as low gas utilization ratio, large gas consumption and high carbon dioxide emissions, a method was proposed by designing a new shaft furnace with oxygen injection into the upper zone. Based on the mass and energy balances of gas and solid phases, a static model of the shaft furnace was developed to simulate the iron-making process in the shaft furnace. Calculating results show that under the typical operation conditions, the gas volume of the shaft furnace with oxygen injection is 1404.67 m 3, and the oxygen volume is 20.32 m 3 for per ton of direct reduction iron. In comparison with a traditional shaft furnace, the reduction potential of top gas decreases to 0.56, the carbon emission decreases by 26.25%, and the energy consumption decreases by 19.56%.

Original languageEnglish
Pages (from-to)691-694
Number of pages4
Journal Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing
Volume34
Issue number6
Publication statusPublished - Jun 2012
Externally publishedYes

Keywords

  • Direct reduction process
  • Energy utilization
  • Mathematical models
  • Oxygen injection
  • Shaft furnaces

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