The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 16, 2012
Filed:
Oct. 25, 2007
Noboru Takikawa, Machida, JP;
Yasunori Shibata, Himeji, JP;
Atsushi Kondo, Kobe, JP;
Tamaki Sakurai, Nagoya, JP;
Yoshiteru Kato, Chuo-ku, JP;
Kozo Kuga, Naruto, JP;
Tomokazu Tengan, Urazoe, JP;
Tatsuya Ishihara, Urazoe, JP;
Atsushi Chinen, Urazoe, JP;
Yoshimichi Daijyo, Chiyoda-ku, JP;
Noboru Yasuda, Chiyoda-ku, JP;
Masahiko Doi, Chiyoda-ku, JP;
Noboru Takikawa, Machida, JP;
Yasunori Shibata, Himeji, JP;
Atsushi Kondo, Kobe, JP;
Tamaki Sakurai, Nagoya, JP;
Yoshiteru Kato, Chuo-ku, JP;
Kozo Kuga, Naruto, JP;
Tomokazu Tengan, Urazoe, JP;
Tatsuya Ishihara, Urazoe, JP;
Atsushi Chinen, Urazoe, JP;
Yoshimichi Daijyo, Chiyoda-ku, JP;
Noboru Yasuda, Chiyoda-ku, JP;
Masahiko Doi, Chiyoda-ku, JP;
Kawasaki Plant Systems Kabushiki Kaisha, Kobe-shi, JP;
Japan Coal Energy Center, Tokyo, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe-shi, JP;
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+FeO+MgO)/SiO(weight ratio)) of 0.1 or higher and a reactivity index (corrected basicity/(RO/AlO) (weight ratio)) of 10 or higher, the coal ash as a raw ash is transferred to raw ash silo (). Otherwise, the coal ash is transferred to waste ash silo (). The raw ash within the raw ash silo () is poured in mill (), 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)/(average of power) ranges from 0.1 to 0.3.