A Study on the Combustion Characteristics of Coke and Anthracite in an Iron Ore Sintering Bed

소결층 내에서의 코크스와 무연탄의 연소 특성 비교 연구

  • 양원 (한국과학기술원 기계기술연구소) ;
  • 양광혁 (한국과학기술원 기계공학과) ;
  • 최응수 (POSCO 기술연구소 제선 연구 그룹) ;
  • 이덕원 (POSCO 기술연구소 제선 연구 그룹) ;
  • 김성만 (POSCO 기술연구소 제선 연구 그룹) ;
  • 최상민 (한국과학기술원 기계공학과)
  • Published : 2004.06.30

Abstract

Coal combustion in an iron ore sintering bed is a key parameter that determines quality of the sintered ores and productivity of the process. In this study, effects of the different types of coal - coke and anthracite - on the combustion in the iron ore sintering bed are investigated by modeling and experiment. Fuel characteristics of coke and anthracite are observed through a set of basic analysis and thermo-gravimetric analysis. Coke has a higher reactivity than anthracite due to the difference of surface area and density, and these characteristics are reflected in the 1-D unsteady simulation of the iron ore sintering bed. Calculation results show that different reactivity of the fuel can affect the bed combustion.

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