| 摘要 |
PROBLEM TO BE SOLVED: To provide a space-saving sand washing device which can continuously and efficiently obtain washing effect, is free from the limit of an installation location, and can be easily carried by an operator. SOLUTION: The sand washing device 1 comprises a sand washing pipe 2, a pressurizing means 3 connected to one end of the sand washing pipe 2, and a separating means 4 connected to the other end of the sand washing pipe 2, and is used by pressurizing dirty sand 34 to be washed and a washing liquid 35 to supply them to one end of the sand washing pipe 2. Friction between grains of sand is generate by making the pressurized sand 34 to be washed and washing liquid 35 flow along a pipe body 21 and a screw body 23 fixed on the inside of the pipe body 21 and forming a spiral passage along with it and the inner wall 21c of the pipe body, which washes the grains of sand by rubbing and washing effect. COPYRIGHT: (C)2006,JPO&NCIPI
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