METHOD FOR EVALUATING COAL, METHOD FOR PREPARING BLENDED COAL, AND METHOD FOR PRODUCING COKE

Title:

METHOD FOR EVALUATING COAL, METHOD FOR PREPARING BLENDED COAL, AND METHOD FOR PRODUCING COKE

Document Type and Number:

WIPO Patent Application WO/2020/189294

Kind Code:

A1

Abstract:

The present invention provides a method for evaluating whether a coal being evaluated could reduce the strength of coke, the method involving using an apparatus equipped with a stirrer such as a well-known Gieseler plastometer.　The coal is evaluated using a Gieseler plastometer 10. A semi-coke 13 is formed from the heated coal in the container 11 of the Gieseler plastometer 10 after measurement of the Gieseler fluidity. The height of the semi-coke 13 on a side wall of the container 11 is designated as b. The height of the semi-coke on 13 the stirrer 12 of the Gieseler plastometer is designated as a. The degree of entanglement (a - b)/a represented by heights a and b, or the height a alone, is used as as an index for evaluating the coal.

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Inventors:

AKISHIKA ISSUI (JP)
DOHI YUSUKE (JP)
IGAWA DAISUKE (JP)

Application Number:

PCT/JP2020/009316

Publication Date:

September 24, 2020

Filing Date:

March 05, 2020

Export Citation:

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Assignee:

JFE STEEL CORP (JP)

International Classes:

C10B57/04; G01N11/14

Domestic Patent References:

WO2013145677A1

2013-10-03

Foreign References:

JP2011089002A	2011-05-06
JP2000304674A	2000-11-02

Other References: