| 摘要 |
PROBLEM TO BE SOLVED: To provide such a multi-spindle screw conveyor that secure of sealing property and improvement of durability are compatible with each other. SOLUTION: The screw conveyor in which a plurality of screws 10, 20 having spiral flights 12, 22 with different flight directions are contained freely rotatably works as a conveyor by oppositely rotating the screws 10, 20. Spiral seal materials 15, 25 are provided at the peripheral edge of one or both of the flights 11, 22 of the screws 10, 20. COPYRIGHT: (C)2004,JPO&NCIPI
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