Coal-water slurry producing system

Details Coal-water slurry producing system Coal-water slurry producing system

B - Operations, Transporting

02

C

241/82

B02C 23/36 (2006.01) B02C 17/18 (2006.01) C10L 1/32 (2006.01)

Patent

CA 1298259

ABSTRACT OF THE DISCLOSURE 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, the 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, a combustion apparatus, or the like. 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. The ball mill is operated under the condition that the ratio of the slurry volume in the mill to the ball space volume in the mill ranges between 0.1 and 1Ø

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