TY - JOUR
T1 - Properties of sinter produced from mini-pellets consisting of coarse iron ore particles and adhering fine mixtures having quaternaly calcium ferrite composition
AU - Otomo, Takaho
AU - Taguchi, Noboru
AU - Omori, Yasuo
AU - Kasai, Eiki
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1990
Y1 - 1990
N2 - A wide range of sintering experiments were carried out in order to use a large quantity of fine iron ore for the sintering process and to improve the properties of product sinter. Modeled mini-pellets (named duplex pellets) which consisted of coarse iron ore particles as cores and fine mixture, of which chemical composition was specified to a quaternary (CaO-SiO2-Al2O3-Fe2O3) calcium ferrite, as shell layer were used in the present experiments. The effect of ratio of shell in pellet and of iron ore characteristics on the sintering process and metallurgical properties of the product sinter were examined. The maximum bed temperature decreased with increasing ratio of shell in pellet from 50 to 80 mass%. Reduction degradation property of product sinter was improved with increasing ratio of shell in pellet. When the ratio of shell was 80 mass%, reduction degradation property of product sinter was improved by the use of fine iron ore with good reactivity with limestone.
AB - A wide range of sintering experiments were carried out in order to use a large quantity of fine iron ore for the sintering process and to improve the properties of product sinter. Modeled mini-pellets (named duplex pellets) which consisted of coarse iron ore particles as cores and fine mixture, of which chemical composition was specified to a quaternary (CaO-SiO2-Al2O3-Fe2O3) calcium ferrite, as shell layer were used in the present experiments. The effect of ratio of shell in pellet and of iron ore characteristics on the sintering process and metallurgical properties of the product sinter were examined. The maximum bed temperature decreased with increasing ratio of shell in pellet from 50 to 80 mass%. Reduction degradation property of product sinter was improved with increasing ratio of shell in pellet. When the ratio of shell was 80 mass%, reduction degradation property of product sinter was improved by the use of fine iron ore with good reactivity with limestone.
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U2 - 10.2355/tetsutohagane1955.76.5_683
DO - 10.2355/tetsutohagane1955.76.5_683
M3 - Article
AN - SCOPUS:0025430681
VL - 76
SP - 683
EP - 690
JO - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
JF - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
SN - 0021-1575
IS - 5
ER -