| 摘要 |
TRANSPORT SYSTEM FOR MATERIAL IN POWDER OR LIKE FORM There is disclosed a transport system for material in powdered, particulate, granular or the like form. A generally horizontal flow channel extends from an inlet (20) to an outlet (11) for the material. An ultrasonic standing wave is set up in the body (10) surrounding the flow channel by means of a piezo-ceramic transducer (12). The standing wave is arranged to have an antinode at or near the inlet and a node at or near the outlet whereby the material flows along the channel. |
