Flexicon’s new mobile half-frame bulk bag unloader with multi-purpose hopper allows material to be discharged from bulk bags, manually dumped from sacks and conveyed to downstream processes and storage vessels.

For in-plant mobility, the system minimizes weight and achieves a low center of gravity by eliminating upper frame components, instead, relying on the user's forklift or plant hoist to suspend the bag above the unit during operation.

The bulk-to-bag hopper interface consists of a SPOUT-LOCK clamp ring positioned atop a pneumatically actuated TELE-TUBE telescoping tube, allowing dust-tight connections and unrestricted flow between the bag spout and hopper, as well as automatic tensioning of the bag as it empties to promote flow and evacuation. The telescoping tube raises the clamp ring assembly that seals the clean side of the bag spout to the clean side of the telescoping tube, and then lowers until the bag spout is pulled taut. Once the spout is untied, the telescoping assembly exerts continual downward tension on the spout, elongating the bag as it empties.

The high-integrity seal between bag spout and clamp ring allows full-open discharge from bag spouts of all diameters.

An integral BAG-VAC dust collector creates negative pressure within the dust-tight system to collapse empty bags prior to retying and disconnection, thus eliminating dust emitted during manual flattening of empty bags.

FLOW-FLEXER bag activators raise and lower opposite bottom edges of the bag at timed intervals, loosening compacted materials and promoting material flow into the bag discharge spout. As the bag lightens, the stroke of the bag activators increases, raising the bag into a steep "V" shape to evacuate material.

For manual dumping or bulk bag discharging, operators raise a hinged bag-dump support shelf and a hinged hopper door and pour material through a coarse screen into the hopper.

The integral flexible screw conveyor transports both free-flowing and non-free-flowing bulk materials, including products that pack, cake, smear, seize or fluidize. Units are available in carbon steel with durable industrial coating, or stainless steel to meet food and dairy standards.

Flexicon Corp. is based in Bethlehem, Pa.

Flexicon Corp.