| 摘要 |
A metering device for controlling the flow of bulk material, contained in a bulk material container, out through a flexible pouring spout on the bulk material container, so that the flexible pouring spout may be tied shut and later un-tied for re-use of the bulk material container. The metering device is positioned below the bulk material container which is to be emptied, upstream from the plant process operation which is to receive the bulk material from the container. A metering gate discharger, contained within the metering device, provides accurate batching from the bulk material container as well as the ability to completely empty the bulk material container at one time without metering the contents. The discharger has two meter gates that accurately control the flow of the bulk material through the flexible pouring spout and into the plant process operation while permitting a pre-determined portion of the pouring spout to move through the metering gates, to a position below the metering gates, permitting that portion of the flexible pouring spout to be tied tightly shut and to be later un-tied as desired. Each meter gate has formed thereon, on an upstream portion of the gate, a centrally positioned, upward facing concaved area which is specifically designed to aid the downward movement of the pre-determined portion of the flexible pouring spout as the meter gates are closing, so that the pre-determined portion of the flexible pouring spout is exposed below the meter gates and is not bunched up above the meter gates.
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