LI Hongge
,
ZHANG Jianliang
,
PEI Yuandong
,
ZHAO Zhixing
,
MA Zejun
钢铁研究学报(英文版)
The whole melting curve of iron ore during sintering process was obtained, and the melting characteristics of iron ore were defined and explained. The whole melting process of mixture, mixed by iron ore and CaO reagent at basicity of 20 and 40, respectively, was observed using a SiC heating furnace with camcorder unit, and the melting curves of mixture that were relative height vs temperature curves were obtained. Besides, the melting characteristics of iron ore during sintering were introduced through defining some points in the melting curves, such as liquid forming temperature, inflexion temperature and flowing temperature, and the meaning of different shapes of the melting curves was clarified.
关键词:
iron ore
,
sintering
,
melting characteristic
,
melting curve
WU Shengli
,
WANG Qingfeng
,
BIAN Miaolian
,
ZHU Juan
,
LONG Fangyi
钢铁研究学报(英文版)
The influence of iron ore characteristics on FeO formation during sintering was examined mainly in terms of chemical composition and the melting characteristics of iron ores. Statistical regression and Xray diffraction were used to further explain the specific effect of iron ore characteristics on FeO formation. The results indicate that LOI (loss on ignition) in iron ores have a positive influence on FeO formation by promoting the sintering process of Fe2O3 decomposing and reducing. Silica contents in iron ores play a determining role in final content of FeO in sinter. The melting characteristics of iron ores significantly affect FeO formation during sintering.
关键词:
iron ore characteristic
,
chemical composition
,
melting characteristic
,
FeO formation
