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Mixed Waste Recycling

mixed-waste-recycling

Plastic recycling operations inevitably generate substantial trim and waste materials, posing challenges for disposal.

When dealing with single-type waste like LDPE or BOPP, or even mixtures like LDPE + HDPE, reprocessing is a viable solution.

However, the recycling of laminate waste, such as PET/PE (Polyester film laminated with LDPE), presents unique difficulties. Conventional recycling isn't feasible, leading to incineration and harmful smoke emissions.

Major pieces of machinery are listed below:

  • Shredder / Agglomerator / Grinder Machine
  • Dryer
  • Mixer/Blender
  • Extruder (profile/sheet)

These machines play a crucial role in our recycling process, ensuring efficient waste management and sustainable production.

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Details of Mixed Waste Recycling

Features
  • Combination of Agglomerator and Extruder: It is the machine that incorporates both an agglomerator and an extruder, with venting functionality that allows for the removal of volatile substances and moisture from the granules.
  • Wide Range of Screw Sizes: The machine is versatile to meet production requirements in the workshop, with the screws proportional to the range of 65mm to 200mm.
  • High Production Capacity: Equipped with a speed of 100 to 1500 kg/hr, it is capable of handling large waste amounts.
  • Vented Extruder: Powered by an extruder fitted with a vented outlet, which in turn removes volatile substances and moisture from the granules, creating quality recycled goods.
  • Adjustable Granule Size: Provides the possibility to regulate granule size, which yields the desired granules with perfect granule features similar to virgin materials.
  • Melt Pressure Transducer: Contain a melt pressure transducer to ensure accurate monitoring and management of melt pressure during the recycling process.
Application

Our innovative approach offers a solution. Panchal Plastic's plastic recycling machines can transform this challenging waste into valuable extruded products suitable for various applications.

These include flooring, architectural sheets (e.g., office partitions), corrugated roofing, slats for benches and chairs, and any extruded sections requiring mechanical load-bearing capabilities similar to the applications mentioned. The resulting product exhibits mechanical properties between General Purpose Polystyrene and HIPS.

Process

Our four-stage process involves:

  • 1-stage : Compaction: Waste is compacted through agglomeration, grinding, or shredding, followed by extrusion.
  • 2-stage : Drying: Granules are dried, mixed with bonding/compatibilizer and other additives.
  • 3-stage : Extrusion: The material is extruded into final usable shapes.
  • 4-stage : Lamination: For a decorative finish.

The addition of fillers or other additives may be considered in stage two, depending on the application and waste type. The use of a compatibilizer and precise control of process parameters are essential for successful recycling. Our cost-effective, indigenous compatibilizer helps keep the overall process economical.

Due to the presence of various inks in the PET/PE film laminate waste from the conversion industry, the reprocessed product is likely to have a darker color (e.g., dark green/grey/black), with some color variation due to metallized film in the waste.

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