Capture points
Dust should be collected as close as practical to the machine or transfer point where it is generated.
Recycling
Dust extraction for recycling
Few industries contain as much variation in material and process as recycling.
A single facility may receive and process paper, plastics, metals, glass, wood waste, tyres, electronic waste and many other materials.
These materials behave very differently during sorting, transport, shredding and processing.
As a result, the dust generated in one part of a recycling plant may be very different from the dust created elsewhere in the same facility.
Effective extraction therefore begins with understanding both the material and the process.
NEU-JKF Nordic works with dust extraction systems and components for recycling facilities, combining filters, fans, ducting, separators and material-handling equipment around the actual application.
One industry. Many materials.
The term "recycling" covers a very broad range of applications.
Examples include:
- Electronic waste and WEEE
- Wood waste
- Tyres
- Glass
- PET
- Paper and cardboard
- Plastics
- Metals
- Mixed waste streams
Each material can create different particle sizes, densities and dust loads.
The extraction solution must therefore be adapted to what is actually being processed.
Sorting and material handling
Before materials are recycled, they often pass through several sorting and transport stages.
Conveyors, transfer points and sorting equipment can release dust as material moves through the plant.
Because these processes may extend across large areas, the extraction system needs to consider both local dust capture and the route required to transport the extracted material to the filtration equipment.
Shredding and size reduction
Mechanical processing can generate significantly more dust than simple transport.
When materials are shredded, crushed or ground into smaller fractions, fine particles can be released into the air.
The extraction requirement around this equipment may therefore be considerably higher than around other parts of the production line.
The design must also consider the volume of material entering the extraction system.
Filters, separators and fans are selected and dimensioned together as one airflow path – from the extraction point to material discharge.
Illustrative rendersDifferent waste streams can require different solutions
A facility processing plastic waste may have very different extraction requirements from a plant handling wood waste or paper.
Even within one facility, several independent extraction zones may be needed.
This is why the starting point should be the production process rather than a predetermined product configuration.
Understanding where dust is generated, how the material behaves and which machines operate simultaneously makes it possible to select the appropriate filters, fans and ducting.
A complete extraction path
Ducting
The duct system transports extracted air and material from the production equipment to the filtration system.
Correct routing and dimensioning help maintain stable material transport.
Fans
The fan creates the airflow needed across the entire system.
Its operating point needs to account for the pressure losses from the ductwork, filtration and other components.
Filters
Filters remove dust from the extracted air.
The filter configuration should be selected around the characteristics and volume of the material being collected.
Rotary valves and discharge
Collected dust and material need to leave the filtration equipment in a controlled way.
Rotary valves and other discharge equipment can form part of this process.
Standard equipment and tailored engineering
Not every recycling project requires a completely unique solution.
Many installations can be built around proven filters, fans and duct components.
However, the way the components are combined often needs to be adapted to the production layout.
More complex plants may also require custom duct routing, extraction points, controls or system integration.
NEU-JKF Nordic can therefore work with both individual components and complete system projects.
Dust extraction and odour control at Meldgaard
The Meldgaard installation is a good example of how several technologies can work together within one recycling facility.
The solution combines dust extraction and filtration with airflow management and odour treatment around the waste sorting process.
Rather than viewing each component separately, the installation is designed around the complete production process.
From 3D engineering to installation
3D design and technical drawings can be particularly valuable in complex recycling facilities where extraction equipment must be integrated around conveyors, sorting machinery, building structures and existing installations.
The Viggo Bendz / Copenhagen Municipality project is a strong example of this approach.
The system was developed around a bulky-waste facility where extraction equipment had to become part of the wider production layout.
From process knowledge to system design
A recycling extraction system needs to work with the facility around it.
That requires understanding:
- Material types
- Process equipment
- Dust generation points
- Production layout
- Airflow requirements
- Material transport
- Maintenance access
- Future production changes
These factors provide the basis for selecting and combining the right extraction equipment.
Product categories for recycling
Complete solutions
Need more than individual components?
For more complex applications, NEU-JKF Nordic can support the complete extraction process – from understanding the production requirements and selecting the right equipment to system design, installation and commissioning.