Recycling sorting solutions for the wire recovery - Metal - Metal Recycling

Previously, cable and wire materials were often lost in the treatment and sorting process, resulting in a financial loss due to the high proportion of copper they contain. TOMRA sorting technologies are capable of detecting these wires, transferring them to a metal product and then finally sorting them in a further step into a cable fraction of outstanding purity.

A good example of a high-quality product is copper wiring and insulated wires stemming from various treatment processes. Secondary copper smelting plants and cable treatment companies require high-quality input in order to work efficiently

TOMRA combined two of its sensor technologies with SUPPIXX image processing, making it possible to detect and separate even the smallest metal particles. The two signals are combined and processed to produce one statement, resulting in effective and profitable recovery of resources in ways previously unimaginable.

The System Concept
TOMRA’s sorting systems can be seamlessly integrated into your own system and adapted to suit the material and particle size. The above flowchart shows the stage at which TOMRA Sorting’s technology can be optimally deployed.

The input material, which has been crushed and separated from light parts, is then filtered using defined particle sizes. Magnets and eddy current separators separate the ferrous or non-ferrous metals.

The FINDER then separates the remaining metals including insulated copper wires. The FINDER [poly] gains a high purity mono-wire fraction from this metal concentrate. No metal particles are lost thanks to the two-stage sorting which results in the maximum recovery of wires and copper particles.

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The Challenge

Copper cables and free copper particles are valuable components which are contained in lots of waste fractions such as:

  • Heavy fractions from automobile shredders (SSF)
  • Light fractions from automobile shredders (SLF)
  • Waste electrical and electronic equipment (WEEE)
  • Residual materials and metals from dense medium separation systems (DMS)

The safe identification of copper cable in these material flows with conventional sorting technology is not possible. Cable processors and secondary copper smelters demand high purity mono-fractions of copper concentrate and cables. These can only be efficiently gained by using the new sensor-supported sorting systems.

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The Solution

TOMRA Sorting has developed a sorting system which unifies two technologies: The FINDER [poly] not only recognises fine metal particles with a highly-sensitive electromagnetic sensor (EM) but can also identify insulating polymer coatings made of PVC, PP, PE or rubber with an additional highresolution near infrared sensor (NIR).

The signals from both sensors are analysed with the help of the newly developed SUPPIXX® image processing technology which delivers high-precision results. This means that the insulated copper cables can be safely identified and separated with the highest degree of purity.

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The Advantages

  • Optimum value creation due to high recovery
  • High flow rate due to efficient sorting systems
  • Short amortisation period for TOMRA Sorting machines
  • Recovery of copper particles including undersized particles
  • Less amounts of residual waste and lower disposal costs
  • Modular configuration and simple integration in existing systems
  • No metal losses due to a two-stage concept
  • High quality products increase marketing opportunities

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The System Concept

TOMRA sorting systems can be seamlessly integrated into your own system and adapted to suit the material and particle size. The above flowchart shows the stage at which technology sorting system can be optimally deployed.

The input material, which has been crushed and separated from light parts, is then filtered using defined particle sizes. Magnets and eddy current separators separate the ferrous or non-ferrous metals.

The FINDER then separates the remaining metals including insulated copper cables. The FINDER [poly] gains a high purity mono-cable fraction from this metal concentrate. No metal particles are lost thanks to the two-stage sorting which results in the maximum recovery of cables and copper particles.