Barrel washer

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A washer comprising a cylinder rotating slowly about an axis that is slightly inclined to the horizontal, and into which the raw coal, with a current of water or of a suspension, is fed near its upper end. The clean coal is carried by the water or suspension to the lower end of the cylinder over a scroll that conveys the reject to the upper end of the cylinder. BS, 5

Source: Dictionary of Mining, Mineral, and Related Terms

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