ISSN 2594-357X
Title
Authorship
DOI
Downloads
Abstract
To cope with the degradation of iron ore, Nippon Steel Corporation has been developing the innovative pretreatment technologies for sintering. We developed the “Selective Granulation” process in1996, with which we pre-granulate hard-to-melt (e.g. high Al2O3 content) iron ores and coat them with easy-to-melt iron ores in order to keep good sintering properties. Consecutively the “SPEx-II” (Semi-Pellet Expansion step-II) process has been developped. It keeps the sintering productivity even if we use fine iron ores like pellet-feed by making hard semi-pellets as a sinterfeed with a roll crusher, a drum pelletizer and a dryer.
To cope with the degradation of iron ore, Nippon Steel Corporation has been developing the innovative pretreatment technologies for sintering. We developed the “Selective Granulation” process in1996, with which we pre-granulate hard-to-melt (e.g. high Al2O3 content) iron ores and coat them with easy-to-melt iron ores in order to keep good sintering properties. Consecutively the “SPEx-II” (Semi-Pellet Expansion step-II) process has been developped. It keeps the sintering productivity even if we use fine iron ores like pellet-feed by making hard semi-pellets as a sinterfeed with a roll crusher, a drum pelletizer and a dryer.
Keywords
Iron ore; Sintering; Degradation; Pelletizing.
Iron ore; Sintering; Degradation; Pelletizing.
How to refer
Nishihara, Kazuhiro;
Ooyama, Kouichi;
Nagata, Junji;
Yakashiro, Kenichi;
Gushima, Akira;
Kasama, Shunji;
Kawachi, Shinji;
Nagaike., Yuuki.
THE INNOVATIVE PRETREATMENT TECHNOLOGY OF
SINTER FEED ORE COPING WITH THE DEGRADATION OF
IRON ORE
,
p. 1563-1576.
In: 42º Seminário de Redução de Minério de Ferro e Matérias-primas / 13º Seminário Brasileiro de Minério de Ferro / 6th International Congress on the Science and Technology of Ironmaking,
Rio de Jabeiro,
2012.
ISSN: 2594-357X
, DOI 10.5151/2594-357X-22260
