METALLURGICAL COKE PRODUCTION METHOD

Title:

METALLURGICAL COKE PRODUCTION METHOD

Document Type and Number:

WIPO Patent Application WO/2012/029987

Kind Code:

A1

Abstract:

Provided is a metallurgical coke production method which uses mixed coal to produce metallurgical coke having higher quality than in the past in terms of strength etc. as a result of accurately evaluating the softening/melting characteristics of coal used in the mixed coal by measuring the softening/melting characteristics of the coal in a simulation of the environment around the coal that has been softened and melted in a coke furnace. A method for producing coke by carbonizing mixed coal formed by mixing at least two types of coal and a caking additive, wherein the metallurgical coke production method is characterized in that predetermined amounts of the coals and caking additive which form the mixed coal are filled as a sample in a vessel, a material having through holes in the upper and lower surfaces thereof is disposed on the sample, the sample is heated at a predetermined heating speed while a constant load is applied to the material having through holes in the upper and lower surfaces thereof, the penetration depth of the sample that has penetrated the through holes is measured in advance, and the coals and caking additive which have a penetration depth that is higher than a predetermined control value are mixed at a particle size that is finer than a predetermined particle size.

Inventors:

DOHI YUSUKE (JP)
SHIMOYAMA IZUMI (JP)
FUKADA KIYOSHI (JP)
YAMAMOTO TETSUYA (JP)
SUMI HIROYUKI (JP)

Application Number:

PCT/JP2011/070319

Publication Date:

March 08, 2012

Filing Date:

August 31, 2011

Export Citation:

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Assignee:

JFE STEEL CORP (JP)
DOHI YUSUKE (JP)
SHIMOYAMA IZUMI (JP)
FUKADA KIYOSHI (JP)
YAMAMOTO TETSUYA (JP)
SUMI HIROYUKI (JP)

International Classes:

C10B57/04; C10B57/08

Foreign References:

JP2010043196A	2010-02-25
JP2007262296A	2007-10-11
JP2003129064A	2003-05-08
JP2010190761A	2010-09-02

Other References: