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At Fief de Lambrechies (Belgium) coal mines, washery waste ranging from 0 to 3 1/8 in. in. size is carried by belt conveyor of 12 tons hourly capacity to hopper of 3540 cu. ft. capacity at pit head; water is admitted at head of this pipe to bring water content of mixture delivered at pit bottom up to 20 per cent; downpipe has lasted two years without renewal, amount of shale delivered being 70 tons per day.
At Fief de Lambrechies (Belgium) coal mines, washery waste ranging from 0 to 3 1/8 in. in. size is carried by belt conveyor of 12 tons hourly capacity to hopper of 3540 cu. ft. capacity at pit head; water is admitted at head of this pipe to bring water content of mixture delivered at pit bottom up to 20 per cent; downpipe has lasted two years without renewal, amount of shale delivered being 70 tons per day.
Washery waste as filling material
Remblayage d'une houillere par les schistes de lavoir
Rolland, R. (author)
Genie Civil ; 92
1928
2 pages
1 Fig.
Article (Journal)
French
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