Bulk Bag and Bag Dump Pneumatic Batching/Blending System

This in-line pneumatic batching system allows simultaneous weigh batching of major ingredients supplied in bulk bags and manual dumping of pre-weighed minor ingredients, and blending of the material while a subsequent batch is accumulated. Bulk bag dischargers are mounted on load cells, allowing loss-of-weight batching from either or both bulk bags. A system controller starts and stops each discharger's rotary airlock valve to weigh ingredients, first at high feed rate for rapid filling, then at trickle feed rate, stopping material flow once the accurate batch weight has been discharged. System software allows mid-batch bag changes. Minor, pre-weighed ingredients are added at the manual dumping station that collects dust generated during dumping activities. The dilute-phase, vacuum conveyor line terminates at a filter receiver (not shown) that accumulates the batch before discharging it through a slide gate valve into a blender, allowing concurrent batching and blending of materials, cutting cycle times by half.
Flexicon Corp., Bethlehem, PA 610-814-2400 www.flexicon.com

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