BIG BAG BIN

Volumetric raw-material distribution unit with integrated mixer and inverter control

A high-capacity discharge and precise-dosing unit for plants that store their raw materials in big-bag packaging during logistics and storage — above all in the food, chemical, plastics and feed industries. While ensuring the OHS-compliant, fast and loss-free discharge of large-volume big-bags, it is, with the mechanics in its lower body, a multi-purpose operation centre that transfers the collected product to the next process in a controlled way and in the desired proportions.

WORKING PRINCIPLE

Safe big-bag suspension and discharge management — ergonomic package discharge: the big-bag package suspended on the carrier chassis by crane or forklift is safely positioned over the hopper’s upper intake mouth; when the package lock is opened, the bulk raw material passes by gravity into the dust-tight rigid hopper body. Inner-mixer activation and bridging prevention — forced fluidisation: the heavy-duty mechanical mixer (agitator) integrated into the hopper body engages; this mechanism reliably prevents the shed dust or granular raw material from compacting, clumping in the chamber or sticking to the walls and bridging — it guarantees a continuous flow. Speed-control-regulated uniform injection — inverter-controlled precise conveying: the drive unit connected to the hopper’s outlet line is commanded by a smart speed-control device (inverter / frequency converter); the system feeds the raw material in precise proportions set from the control room or to the next machine with full uniform stability.

KEY ADVANTAGES

- Multi-purpose modular structure and wide application range: Designed with a flexible engineering design to fully suit general-purpose industrial uses; by successfully collecting in a single chamber the products of various characters arriving from different points, it provides in-plant logistic synchronisation.

- Uninterrupted product flow via the mechanical mixer: It breaks the gravity-flow resistance of dense or static-prone dust materials with a low flowability index by the continuously rotating mixer-blade system inside the body; it creates a stable, clog-free material bed.

- Flexible recipe management via the speed-control device: The speed of the outlet transfer mechanism can be precisely set through the automation; this infrastructure allows the raw-material injection to be precisely metered according to the plant’s instantaneous production output or the target grist recipes.

- Ergonomic viewing platform and integrated ladder: Because of the construction’s high vertical form, a protected access ladder fully compliant with occupational-health-and-safety (OHS) rules is included in the system; the balcony-shaped projection (viewing platform) at the body edge lets the operator comfortably monitor the internal mechanical state and the product flow.

ENGINEERING NOTE

Big-bag discharge and dosing hoppers are a critical pre-process component of bulk-raw-material reception stations, simultaneously raising labour productivity and minimising dust emissions. The body volume’s static-strength calculations are verified by computer-aided analysis (FEA) so as to damp the impact loads the big-bag creates during instant discharge. The inner-mixer paddle geometry, combined with the optional frequency-converter screw/injector-airlock discharge, guarantees the raw material is fed to the lower lines uniformly, in the form of a flour curtain, without clogging.