Very often bulk materials must be discharged from FIBCs in a dust-free manner for downstream dosage into one or several containers. Furthermore trial equipment or pilot plants often handle materials with various characteristics, supplied in FIBCs of different sizes.

A state-of-the-art FIBC discharge station should therefore meet the following requirements:
- FIBC discharge with almost no dust generation
- handling of FIBCs of various types and sizes
- supporting devices to assure a smooth material
  flow out of the FIBC
- suitable for operation at different places within
  the same building level

The mobile FIBC discharge systems BBE-300-M perfectly meet all these requirements and are therefore suitable for a multitude of applications.

The compact 2.2 x 1.8 x 3.5 m dimensions accommodate both an FIBC discharge system and a dosing screw with capacities between 150 and 5000 kg/ h (depending on the type of material). The mobile FIBC discharge systems mainly consist of: - a height adjustable rigging frame support   to accommodate the FIBC hanging on the   rigging frame, - a height adjustable bottom element with   integrated pneumatic discharge support   assuring safe working conditions under-   neath the FIBC, - a pneumatic connecting station for a   dust-tight FIBC outlet spout connection - an inlet hopper with pneumatic aerating   device for the screw conveyor. The rigging frame support and bottom element heights can be easily adjusted by electrically driven spindle lift gearings, with collapses being reliably prevented thanks to sturdy linear guides.

Functional design:

In their basic positions the bottom element is located in the lowest and the rigging frame support in the highest position. The FIBC hanging on the rigging frame is entered into the system and lowered onto the support by the rigging frame.

The rigging frame shown here has been developed to be used with a forklift, however, it can also be used with a chain hoist or a pulley. The support is lowered until the FIBC stands on the bottom element. The outlet spout is then pulled through the bottom, connected to the pneumatic coupling station, and then untied. To avoid spout bulges caused by the flowing bulk material the support together with the FIBC is then lifted until the outlet spout is slightly taut. The bottom element is moved upwards until the FIBC stands on it again. In case material flow out of the FIBC stops, the bag content is aerated by four pneumatic discharge supports helping to move the material.

The screw conveyor inlet spout consists of a flexible plastic material tightened between the screw conveyor pipe and the connecting socket. A pneumatic fulling device compresses the inlet spout inwards, thus breaking up any material bridges. The inclined conveying screw prevents very easily flowing material from running too fast. Mass resp. volume flow can be infinitely adjusted by means of a frequency converter working on the screw drive.

Performance data:

- load bearing capacity: - dosing capacity: - dimensions: - place of installation: - interface:

1500 kg FIBCs 150 to 5000 kg/ h 2.2 x 1.8 x 3.5 m mobile design pneumatic coupling cone for round bottom openings