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[April 2004]
Half Frame Low Cost Bulk Bag Discharger
A new Half Frame Bulk Bag Discharger from Flexicon Europe Ltd (Herne Bay, Kent, England) is said to offer total dust containment at low cost by eliminating upper frame components to lift and/or position the bag and, instead, relying on the user's forklift or plant hoist to suspend the bag above the unit during operation.
The bag-to-hopper interface consist of a Spout-Lock(tm) clamp ring positioned above a pneumatically actuated Tele-Tube(tm) 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, dust-tight seal between bag spout and clamp ring allows full-open discharge from bag spouts of all popular diameters, eliminating the need for iris valves commonly employed to lessen dust escape inherent with bag spouts hanging loosely in hopper intake chutes.
The discharger is also equipped with Flow-Flexer (tm) bag activators that 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, eliminating dead spots for total evacuation of material with no manual intervention.
ENDS