| 摘要 |
<p>PURPOSE: A transportation device, a system, and a method thereof are provided to have a uniform and stable flowing speed of solid powders by controlling the flow of gas-solid mixture with a transportation conduit line. CONSTITUTION: A transportation device for pneumatically transporting solid powders comprises a transportation conduit line(13) and a supplementary gas conduit line(21). The transportation conduit line comprises an expansion part, a contraction part, and an intermediate part. The expansion part forms an entrance. The contraction part forms an exit. The intermediate part is communicated with the expansion part and the contraction part. The supplementary gas conduit line is extended to the transportation conduit line.</p> |
