| 摘要 |
<p>DUSTING APPARATUS Apparatus for dusting articles such as electrical cables with a powder such as talc, to prevent the articles sticking together, comprises means for agitating powder in a chamber and means for conveying powder-laden air from the chamber to a dusting nozzle. For efficient dusting of an article, it is important that a constant uniform flow of powder-laden air is conveyed to the dusting nozzle. A fluidized bed of dusting powder is created by a fan (22) creating an air flow up through a permeable screen (21). A conveying nozzle (24) receives some of the air flow, being positioned close to the screen, and comprises a convergent portion (36) which accelerates the flow of powder-laden air to transport it to a discharge portion (30) of the nozzle.</p> |
