Title: System for preparation of coal-water slurry
Application Number: 87102798 Application Date: 1987.04.17
Publication Number: 1014704 Publication Date: 1987.11.18
Approval Pub. Date: 1991.09.18 Granted Pub. Date: 1991.09.18
International Classifi-cation: C10L1/32
Applicant(s) Name: Babcock-Hitachi Kabushiki Kaisha Address:
Inventor(s) Name: Harito Komoto;Nobuyasu Mawari
Attorney & Agent: WANG SHEN
Abstract:
    A coal-water slurry producing system comprises: a continuous wet-type ball mill for grinding the coal with the addition of water and additives thereto to obtain coal-water slurry, supplying device for supplying the coal-water slurry discharged from the ball mill to a filtering apparatus, for filtering the supplied coal-water slurry to remove coal particles of a predetermined particle size or above, delivery device for delivering the filtered coal-water slurry containing coal particles of the predetermined particle size or below to a slurry storage tank, and a combustion apparatus. The coal-water slurry producing system further comprises a screen apparatus disposed at an exit of the ball mill to remove coarse coal particles contained in the coal-water slurry, and recovery device for recovering the removed coarse coal particles at an entrance of the ball mill.
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