| 摘要 |
<p>A screen assembly (10) comprises a support frame (24) adapted to be mounted to a suitable support foundation. A plurality of screen elements (20) are resiliently mounted to the support frame (24) in a generally edge-to-edge relationship so as to define a generally planar screen surface (18). A vibratory device (26) is connected to each of the screen elements (20) to individually vibrate the screen elements (20) relative to each other. The vibration means (26) may comprise a pair of eccentrically weighted shafts (30, 32). Alternatively the vibration means may comprise a pair of motors each of which is eccentrically weighted.</p> |
