Bulk Bag Unloader Suitable For Low-Headroom Situations

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A new single-trip bulk bag unloader from Flexicon allows discharging in low headroom areas and conveying of the material at any angle to downstream processing, storage or packaging equipment. The unloader relies on the user's forklift or plant hoist to lower single-use bulk bags onto a four-bladed bag piercing knife that cuts the bag bottom from seam to seam, promoting complete discharge without the use of flow promotion devices otherwise needed to move material through narrow bag spouts.

The single-trip unloader uses the bag bottom to self-seal against a thick gasket affixed to the rim of the hopper and to discharge through a wide-diameter hole in the center of the gasket, eliminating the cost and additional headroom required for bag spout interfaces used on conventional unloaders of reusable bags. An optional dust plenum, consisting of a hollow hopper rim with interior slots and exterior port vented to a plant dust-collection system, is offered as a secondary dust containment measure.

Single-use bags are lowered onto the piercing knife, designed to discharge faster and with less labor than connecting reusable bags to unloaders. The hopper, which is equipped with a hinged door to access the interior safely, charges the intake adapter of an integral flexible screw conveyor that handles free- and non-free-flowing bulk materials ranging from large pellets to submicron powders, including products that pack, cake, seize, smear, fluidize, break apart or separate, with no separation of blended products.

The hopper also is available with intake adapters and rotary airlocks for pneumatic conveying systems, as well as with universal flanged outlets for connection to the user's downstream equipment. The hopper is made of stainless steel that is finished to industrial, food, dairy or pharmaceutical standards, or of carbon steel with durable industrial finish.

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