FORMED COAL PRODUCTION METHOD - MITSUBISHI HEAVY IND LTD

Title:

FORMED COAL PRODUCTION METHOD

Document Type and Number:

WIPO Patent Application WO/2015/098329

Kind Code:

A1

Abstract:

In a formed coal production method wherein coarse-ground coal (10) is compression-molded to produce formed coal (20), the coarse-ground coal (10) is separated into a large particle diameter group (11), a medium particle diameter group (12), and a small particle diameter group (13) in such a way that the proportion of the total weight of the medium particle diameter group (12) and the small particle diameter group (13) with respect to the weight of the coarse-ground coal (10) falls in the range of 30 to 60% by weight when the coarse-ground coal (10) is separated into three groups comprising the large particle diameter group (11) having an average particle size Db, the medium particle diameter group (12) having an average particle size Dm (with Dm < Db), and the small particle diameter group (13) having an average particle size Ds (with Ds < Dm and 5 ≤ Db/Ds ≤ 10), the medium particle diameter group (12) is finely ground so as to have an average particle size that is smaller than Ds to obtain a second small particle diameter group (14), then, the large particle diameter group (11), the small particle diameter group (13), and the second small particle diameter group (14) are mixed along with a binder (15) and water (16), and compression formed to produce the formed coal (20).

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Inventors:

OMOTO SETSUO (JP)
NAKAGAWA KEIICHI (JP)
HAMADA TSUTOMU (JP)
SAKAGUCHI MASAKAZU (JP)

Application Number:

PCT/JP2014/079917

Publication Date:

July 02, 2015

Filing Date:

November 12, 2014

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)

International Classes:

C10L5/06; C10L5/10

Domestic Patent References:

WO2012137956A1

2012-10-11

Foreign References:

JPS54156010A	1979-12-08
JP2012162604A	2012-08-30
JP2000160175A	2000-06-13

Other References:

THE JAPAN INSTITUTE OF ENERGY, COKES NOTE 2004 NEN BAN, 31 March 2004 (2004-03-31), THE JAPAN INSTITUTE OF ENERGY, pages 118

Attorney, Agent or Firm:

MITSUISHI, Toshiro et al. (JP)
Toshiro Mitsuishi (JP)

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