C - Chemistry – Metallurgy – 10 – L
Patent
C - Chemistry, Metallurgy
10
L
44/1
C10L 5/14 (2006.01) C10L 9/00 (2006.01)
Patent
CA 1180893
ABSTRACT OF THE DISCLOSURE An improvement in a method for agglomerating coal particles and removing ashes therefrom at the same time by agitating a mixture of a slurry of fine coal particles and water with a binder is disclosed. The improvement comprises agitating the mixture at a high speed to form coal agglomerates of small size, and then agitating the mixture at a low speed to make the coal agglomerates larger. According to the method, the binder adequately adheres to the fine coal particles by the first agitation at the high speed and at the same time ashes are separated from the fine coal particles while preventing the fine coal particles from growing to larger coal agglomerates, and then the particle size of the coal agglomerated is rapidly made large by the second agitation at the low speed through the mutual binding of the fine coal particles, whereby easily recoverable coal agglomerated of large size with high ash removal are obtained.
410440
Hisatomi Shigenobu
Maruko Morihisa
Matsuura Yoshio
Muroi Katsumi
Nakamura Yoichi
Electric Power Development Co. Ltd.
Gowling Lafleur Henderson Llp
Hitachi Ltd.
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