| 摘要 |
An arrangement for weighing bulk materials includes plural hoppers each having its own weighing system for accurately determining material discharge rate (lbs/minute) and for directing the contents of the hoppers to a product processing stage either sequentially from one hopper at a time while the other hoppers are being re-filled to provide continuous, non-stop operation, or in the alternative, from two or more hoppers simultaneously for blending the materials under the precise control of a programmed controller. Material discharge rate from each hopper is determined by continuous weighing of each hopper and its contents and is controlled in real time by precise computer controlled positioning of each hopper's slide gate. In the blending mode of operation, accurate monitoring of the material discharge rate is coordinated with processing of the material in a subsequent processing stage to allow for variation of the discharge rate to precisely match the subsequent processing parameters. |
