ISSN 2594-357X
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The paper mainly studies that the inferences of burden metallization rate on softening-melting dropping properties through softening-melting dropping test of three kinds of different metallization rate of burden, and analyzes shrinkage and pressure difference variety of charge column. The results indicated that the softening interval of pre-reduction mixed burden is bigger compared with the primeval mixed burden, the melting interval narrow with the rise of metallization rate of ferric burden as well as dropping temperature interval. The average pressure difference, maximum pressure difference, and permeability of charge column decrease with the rise of metallization rate of ferric burden as well as softening-melting dropping properties eigenvalue. Besides, the dropping temperature of burden reduces with the rise of carbon content of molten iron. The combination high metallized burden and higher carbon content of molten iron is benefit to decreasing thickness of cohesive zone and improve permeability of cohesive zone.
The paper mainly studies that the inferences of burden metallization rate on softening-melting dropping properties through softening-melting dropping test of three kinds of different metallization rate of burden, and analyzes shrinkage and pressure difference variety of charge column. The results indicated that the softening interval of pre-reduction mixed burden is bigger compared with the primeval mixed burden, the melting interval narrow with the rise of metallization rate of ferric burden as well as dropping temperature interval. The average pressure difference, maximum pressure difference, and permeability of charge column decrease with the rise of metallization rate of ferric burden as well as softening-melting dropping properties eigenvalue. Besides, the dropping temperature of burden reduces with the rise of carbon content of molten iron. The combination high metallized burden and higher carbon content of molten iron is benefit to decreasing thickness of cohesive zone and improve permeability of cohesive zone.
Palavras-chave
Iron-bearing burden; Metallization rate; Softening-melting dropping properties; Blast furnace.
Iron-bearing burden; Metallization rate; Softening-melting dropping properties; Blast furnace.
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Tuo, Bi-yang;
Wu, Sheng-li;
Zhang, Li-hua;
Wu, Jian-long;
Zhou, Yu;
Sun., Yin.
INFLUENCES OF IRON-BEARING METALLIZATION RATE
ON ITS SOFTENING AND DROPPING PROPERTIES INSIDE
BLAST FURNACE
,
p. 425-436.
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-22111
