Title:
PROCESS FOR PRODUCING GRANULAR SOLID MATTER FROM COAL ASH AS RAW MATERIAL AND APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2008/050831
Kind Code:
A1
Abstract:
A method of estimating the hydration reactivity of coal ash with high precision
and determining the amount of milling water for obtaining a milling product in
funicular form at the stage of milling; and a molding method being free from the
problem of adhesion to a pressurization board at the stage of molding after the
milling. When any collected coal ash exhibits a corrected basicity ((CaO+Fe2O3+MgO)/SiO2
(weight ratio)) of 0.1 or higher and a reactivity index (corrected basicity/(R2O/Al2O3)2
(weight ratio)) of 10 or higher, the coal ash as a raw ash is transferred to raw ash
silo (2). Otherwise, the coal ash is transferred to waste ash silo (3). The raw
ash within the raw ash silo (2) is poured in mill (8), and lime and gypsum are added
and further milling water is charged thereto and milled. The amount of milling
water is regulated so that with respect to agitator power per weight of material
milled by the mill, the ratio of (average of power during 30 to 40 sec after completion
of water charging)/(power at idling) ranges from 3 to 4, and so that with respect
to agitator power per weight of material milled during 30 to 90 sec after completion
of water charging, the ratio of (width of power fluctuation)/(averageof power)
ranges from 0.1 to 0.3.
Inventors:
TAKIKAWA, Noboru (())
多喜川 昇 (())
SHIBATA, Yasunori (())
柴田 泰典 (())
KONDO, Atsushi (())
近藤 篤 (())
SAKURAI, Tamaki (())
桜井 玉貴 (())
KATO, Yoshiteru (())
加藤 義輝 (())
KUGA, Kozo (())
久我 耕三 (())
多喜川 昇 (())
SHIBATA, Yasunori (())
柴田 泰典 (())
KONDO, Atsushi (())
近藤 篤 (())
SAKURAI, Tamaki (())
桜井 玉貴 (())
KATO, Yoshiteru (())
加藤 義輝 (())
KUGA, Kozo (())
久我 耕三 (())
Application Number:
JP2007/070810
Publication Date:
May 02, 2008
Filing Date:
October 25, 2007
Export Citation:
Assignee:
KAWASAKI PLANT SYSTEMS KABUSHIKI KAISHA (1-1 Higashikawasaki-cho 3-chome, Chuo-ku Kobe-sh, Hyogo 70, 6508670, JP)
カワサキプラントシステムズ株式会社 (〒70 兵庫県神戸市中央区東川崎町３丁目１番１号 Hyogo, 6508670, JP)
Japan Coal Energy Center (())
財団法人石炭エネルギーセンター (())
TAKIKAWA, Noboru (())
多喜川 昇 (())
SHIBATA, Yasunori (())
柴田 泰典 (())
KONDO, Atsushi (())
近藤 篤 (())
SAKURAI, Tamaki (())
桜井 玉貴 (())
KATO, Yoshiteru (())
加藤 義輝 (())
カワサキプラントシステムズ株式会社 (〒70 兵庫県神戸市中央区東川崎町３丁目１番１号 Hyogo, 6508670, JP)
Japan Coal Energy Center (())
財団法人石炭エネルギーセンター (())
TAKIKAWA, Noboru (())
多喜川 昇 (())
SHIBATA, Yasunori (())
柴田 泰典 (())
KONDO, Atsushi (())
近藤 篤 (())
SAKURAI, Tamaki (())
桜井 玉貴 (())
KATO, Yoshiteru (())
加藤 義輝 (())
International Classes:
B09B3/00; B02C21/00; B02C23/10; B07B1/00; B07B9/00; C09K17/02; C09K17/06; E02D3/00; E02D3/02; E02D3/12; C09K103/00
Attorney, Agent or Firm:
SUMIDA, Yoshihiro et al. (PATENT CORPORATE BODY ARCO PATENT OFFICE, 3rd Fl.Bo-eki Bldg. 123-1, Higashimachi, Chuo-ku, Kobe-sh, Hyogo 31, 6500031, JP)
Previous Patent: ANTI-HIV AGENT
Next Patent: SUBSTRATE CLEANING APPARATUS, SUBSTRATE CLEANING METHOD, PROGRAM AND RECORDING MEDIUM
Next Patent: SUBSTRATE CLEANING APPARATUS, SUBSTRATE CLEANING METHOD, PROGRAM AND RECORDING MEDIUM