METHOD FOR OPERATING BLAST FURNACE WITH THE USE OF FERROCOKE

Title:

METHOD FOR OPERATING BLAST FURNACE WITH THE USE OF FERROCOKE

Document Type and Number:

Japanese Patent JP2011162845

Kind Code:

A

Abstract:

To provide a method for operating a blast furnace with the use of ferrocoke, which can operate the blast furnace at a lower ratio of a reducing material than that in a conventional method, by reviewing the condition of mixing the ferrocoke into an ore layer, when using the ferrocoke in the blast furnace.

The method for operating the blast furnace with the use of the ferrocoke includes mixing the ferrocoke with the ore in a region of the ore layer from 0.2 or higher and 0.7 or lower up to 1.0 by a dimensionless layer height, when operating the blast furnace by preparing a mixture of the ferrocoke and the ore by mixing them and charging the mixture into the blast furnace to form the ore layer. It is preferable to mix the ferrocoke with the ore in the region of the ore layer from 0.2 or higher and 0.7 or lower up to 1.0 by the dimensionless layer height, in the range of 0.15-1.0 by a dimensionless radius of the blast furnace.

Inventors:

SATO TAKESHI
SUMI HIROYUKI
FUJIMOTO HIDEKAZU
ANYASHIKI TAKASHI
SATO HIDEAKI

Application Number:

JP2010027212A

Publication Date:

August 25, 2011

Filing Date:

February 10, 2010

Export Citation:

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