| 摘要 |
<p>The present invention relates to an aggregate screening device with a supplemental shooting device and, more specifically, an aggregate screening device with a supplemental shooting device installed on an upper end part of a vibration screen, which enables the supplemental shooting device to uniformly throw aggregates crushed by a crusher to the upper part of the vibration screen and accordingly screens aggregates uniformly via the entire screen net of the vibration screen, thereby increasing the penetration rate of the aggregate and leading to the yield rate of the aggregate. In the present invention, the provided aggregate screening device hardly provides enough opportunities for standard aggregates to be contacted to the screen net and prevents the standard aggregates from being selectively screened. Instead, the aggregate screening device is allowed to supply the standard aggregate via a collection belt conveyor on the lower end of the vibration screen to the crusher and to re-inject the same to the vibration screen, thereby reducing an amount of unnecessary circulated aggregates and thus improving the efficiency of driving the aggregate screening device.</p> |
