To provide a method for producing high-strength ferrocoke even when high-crystal water iron ore is used, based on the result of examining the influence of the crystal water in iron ore as a feedstock for ferrocoke on the mechanical strength of ferrocoke.
The method for producing the ferrocoke by dry distillation of a feedstock mixture of coal and iron ore is provided. This method is characterized by involving using coal as a feedstock, wherein the coal has a Gieseler maximum fluidity determined according to the mass proportion of the crystal water in iron ore based on the coal. It is preferable that the Gieseler maximum fluidity be determined so as to meet the relationship(1):logMF≥0.16x+1.0(x<1.9) and the relationship(2):log MF≥0.62x+0.12(x≥1.9)( wherein, x(%) is the proportion of the crystal water in iron ore based on the coal; and MF is the Gieseler maximum fluidity of the coal ).
SHIMOYAMA IZUMI
SATO HIDEAKI
ANYASHIKI TAKASHI
FUKADA KIYOSHI
FUJIMOTO HIDEKAZU
YAMAMOTO TETSUYA
| JP2004217914A | 2004-08-05 |
Kazuhiro Mori