SOLID-LIQUID SEPARATION METHOD AND DEVICE IN CLASSIFICATION OF EARTH AND SAND

摘要

PROBLEM TO BE SOLVED: To provide a solid-liquid separation method in classification of earth and sand capable of being effectively used as a construction material by easily separating a sand material included in the earth and sand at a high recovery ratio from the earth and sand containing a moisture content or the like after classified and reducing a weight of dredging earth and sand disposed of for reclamation; and a device. SOLUTION: When the sand S is recovered by a dehydration conveyor 2 from sand and water classified and discharged by a centripetal separator or a cyclone and slit and clay included in water, muddy water 7 containing sand as a main component leaked out from the dehydration conveyor 2 is received by a hopper 8 and is again force-fed from the hopper 8 into the centripetal separator 1 by a sand pump. COPYRIGHT: (C)2004,JPO