Receiving hopper with hydraulic draw floor system and screw discharge
Initial situation: need for reliable biomass input
Many operators require a feed and buffer system that reliably transfers large, heterogeneous quantities of biomass into a process chain. Raw materials such as wood chips vary greatly in size, moisture and bulk density. Conventional feed systems quickly reach their limits. The receiving bunker with hydraulic draw floor was developed precisely for these requirements.
Robust hopper geometry for large quantities of bulk material
The bunker is designed for use with wheel loaders and has generous dimensions.
The working area of around 8.5 × 5 meters allows comfortable filling with wide loading shovels.
The system collects coarse biomass up to around 200 mm particle size and serves as a stable material buffer for downstream systems such as mills, dryers, pellet presses or screening machines.
Hydraulic traction floor for powerful material feed
The internal material transport is carried out via three parallel pulling lines.
Each line is driven by robust differential cylinders with an operating pressure of around 120 bar.
Key features:
- Even feed even with difficult flowing material
- Welded and bolted carriers
- Driver distance approx. 1,390 mm
- High tensile forces for high material loads
The traction floor ensures that the material is conveyed in a controlled and powerful manner towards the discharge without any disruptions.
Flexible discharge solutions for different processes
The hopper can be combined with various discharge systems.
The KS.500H box auger is a tried and tested variant.
Characteristic values of the discharge screw:
- Screw diameter 500 mm
- Sash thickness 12 mm
- Gradient 500 mm
- Frequency inverter operation for precise dosing
Alternatively, a vertical discharge is available if the process chain requires the material to be transported upwards.
Hydraulics, drives and controls as integrated systems
The hydraulic unit reliably supplies the traction floor segments with the required power.
Features of the unit:
- Connected load approx. 30 kW
- Tank capacity approx. 150 liters
The discharge screws are speed-controlled, allowing the discharge rate to be precisely adjusted to the requirements of the downstream systems.
Service-friendly design and solid construction
The system has a modular design, which makes maintenance and cleaning easier.
Individual assemblies such as the draw floor, hydraulics and discharge unit are clearly separated from each other and easily accessible.
Typical dimensions and weights:
- Total length approx. 12.7 m
- Total height approx. 8.4 m
- Weight of screw conveyor approx. 1,590 kg
- Weight of draw floor modules approx. 1,900 kg
The bunker is designed for continuous industrial use and is particularly reliable when processing large quantities of biomass.
Possible applications in versatile process chains
The reception bunker is suitable as a stable starting point for:
- Pelletizing plants
- Shredding plants
- Drying systems
- Sorting and screening technology
- General biomass logistics
Thanks to its robust design and high dosing accuracy, it creates the basis for a constant material flow – crucial for consistent production results.
Conclusion
The receiving hopper with hydraulic draw floor system combines high robustness with reliable operation. It reliably processes large and irregular quantities of bulk material, keeps the material flow stable and can be flexibly integrated into almost any plant chain. It therefore forms a resilient basis for any industrial biomass processing system.
