ISSN 2594-357X
32º Seminário de Redução de Minério de Ferro e Matérias-Primas — Vol. 01 , num. 32 (2002)
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To achieve a high rate injection of pulverized coal into a blast furnace, it is important to improve the coal combustibility, the raw materials’ properties and the in-furnace permeability. From this point of view, the following advanced technologies have been adopted by NKK Fukuyama No.3 blast furnace: the development of a new injection lance; the use of low SiO2 sinter; and the burden distribution control. On the basis of the above developments, a monthly average pulverized coal injection rate of 266 kg/t was successfully achieved in June 1998. Furthermore, a monthly average PCR 210 kg/t was achieved at Fukuyama blast furnaces (No.2,3,4,5BF) in June 2001.
To achieve a high rate injection of pulverized coal into a blast furnace, it is important to improve the coal combustibility, the raw materials’ properties and the in-furnace permeability. From this point of view, the following advanced technologies have been adopted by NKK Fukuyama No.3 blast furnace: the development of a new injection lance; the use of low SiO2 sinter; and the burden distribution control. On the basis of the above developments, a monthly average pulverized coal injection rate of 266 kg/t was successfully achieved in June 1998. Furthermore, a monthly average PCR 210 kg/t was achieved at Fukuyama blast furnaces (No.2,3,4,5BF) in June 2001.
Palavras-chave
pulverized coal injection, coal combustibility, raw materials properties, blast furnace, permeability
pulverized coal injection, coal combustibility, raw materials properties, blast furnace, permeability
Como citar
Watanabe, T.; Okochi, I.; Sakai, A.; Sakurai, M.; Sato, M.; Murai, R..
High pulverized coal injection rates at Fukuyama Works,
p. 241-250.
In: 32º Seminário de Redução de Minério de Ferro e Matérias-Primas,
None,
2002.
ISSN: 2594-357X, DOI 10.5151/2594-357x-32 V01 - 241-250
