Principle of operation of POP-TOPTM bag stretching devices (BFF models only) and FLOW-FLEXER® bag activators (available on all models)
Poor-flowing, non-free-flowing and/or compacted materials will not fall through the bulk bag discharge spout consistently, often "rat-holing" or bridging as shown above.
At timed intervals, FLOW-FLEXER® bag activators raise and lower opposite bottom edges of bulk bags, promoting material flow into the discharge spout.
As the bag empties, the stroke of the FLOW-FLEXER® bag activators increases, raising the bottom of the bag into a steep "V" shape while POP-TOPTM extension devices stretch the bag into a cone shape, promoting complete discharge.
(On BFC models without POP-TOPTM bag stretching devices, the bag can be stretched in the same manner using the electric hoist, to promote complete discharge.)
Also see weigh batching systems.
Flexicon Loss-of-Weight Batching Systems discharge one or more bulk bags while weighing the material and conveying the batch directly to a common hopper, blender, conveyor, shipping container, or process vessel automatically, accurately, and economically. This loss-of-weight system is mounted on load cells which transmit the amount of weight lost to a controller which, in turn, stops the conveyor once the target batch weight has been reached.
The weigh batch filling head of this bulk bag gain-in-weight batching system can be cantilever-mounted (shown), or mounted remotely above any discharge point desired; the flexible screw conveyor can transport material at any angle to any nearby or distant plant location. Electric hoist and trolley model shown.
Options by model
(Cantilevered hoist & trolley)
|Rotary airlock valve for operation in-line with pneumatic conveyors|||||||
|SPOUT-LOCK® clamp ring with TELE-TUBE® telescoping tube
|Conventional iris valve with intake chute/access door|||||||
|Multi-purpose intake chute and manual dumping station|||||||
|POWER-CINCHER® flow control valve
|BAG-VAC® dust collector|||||||
|FLOW-FLEXER® bag activators|||||||
|POP-TOPTM bag extension devices||—||||—|
|Stainless steel in industrial or sanitary finish|||||||
|Designed for high sanitary/dairy applications|||||||
|Floor hopper with outlet for mechanical or pneumatic conveyor process equipment or storage vessel|||||||
|Flexible Screw Conveyor
|Weigh Batching Package||||||—|