| 摘要 |
A material treating apparatus having a treating chamber through which material is continuously displaced over an elongated, horizontally disposed bedplate. The bedplate is formed with a large number of small apertures distributed over the plate and permitting a gaseous treating fluid to flow upwardly through the bedplate and the overlying material to effect its treatment. A distribution chamber for the gaseous fluid underlies and extends the length of the bedplate and connects at one longitudinal end with a source of the fluid. This source induces the gaseous fluid to flow into and then longitudinally through the distribution chamber ultimately exiting through the apertures of the bedplate. A flow control plate is positioned in the distribution chamber adjacent the end through which the gaseous fluid enters. The plate extends horizontally across the chamber and is pivotable about a horizontal axis to a selected angular position to cause the gaseous fluid to flow along a desired path through the distribution chamber.
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