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:
Feb. 19, 1985
Filed:
Dec. 03, 1982
Applicant:
Inventors:
Kazuhiko Nakaoji, Ichihara, JP;
Mitsugu Kamao, Chigasaki, JP;
Hayami Itoh, Himeji, JP;
Shuhei Tatsumi, Akashi, JP;
Shoichi Takao, Akashi, JP;
Assignees:
Lion Corporation, Tokyo, JP;
Kao Corporation, Tokyo, JP;
Mitsui Engineering and Shipbuilding Company Limited, Tokyo, JP;
Electric Power Development Company Limited, Tokyo, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C / ;
U.S. Cl.
CPC ...
241 16 ; 241 21 ; 241 29 ; 241 97 ;
Abstract
High concentrated coal-water slurry is produced by coarsely crushing coal, thereafter pulverizing the coarsely crushed coal, together with water and a slurry dispersant, according to necessity, in a wet-type ball mill, and feeding back one portion of the finely pulverized coal slurry thus obtained into the inlet of the wet-type ball mill.