Sensor-based sorting systems pioneer TOMRA Sorting will demonstrate its virgin and recycled plastics, as well as rubber sorting applications, at K 2013 in Düsseldorf. In the spotlight at the leading international trade fair for the plastics and rubber industries worldwide will be the new generation BEST Genius™ and TITECH autosort [flake] systems. The event takes place from October 16-23, at the Düsseldorf Fairgrounds and the TOMRA Sorting systems can be seen at Stand F17 in Hall 11.
Virgin plastics sorting applications
The new generation Genius™ optical sorter combines mechanics, optics and computing in a high performance, robust machine which sorts valuable materials at high capacity (up to 10t/h) and resolution (100 microns). The product is fed via a hopper system onto a high speed transport belt, where it is scanned consecutively by color cameras and lasers on-belt, plus top and bottom monochrome high resolution cameras off-belt.
Pieter Willems, TOMRA Sorting’s Market Unit Manager for raw materials, explained: “The Genius™ optical sorter’s powerful combination of detection methods allows the selection of multiple potential sorting parameters. Defects identified by the system are removed with high accuracy through electronically controlled air blasts from a row of narrow, individually controlled valves, guaranteeing perfect defect removal and minimal good product loss.”
The Genius™ high resolution sorter is used in off-line, as well as in-line applications and tackles almost any sorting problem in the polymer pellet industry. These include the removal of specks and materials which are off-color, misshapen, cloudy, bubbled or dimpled. The system is user-friendly, demands only low maintenance, is modular and upgradeable and provides extremely fast payback on investment.
Recycled plastics sorting applications
Christoph Bach, TOMRA Sorting’s Sales Director for recycling in central Europe, said: “The plastics industry increasingly realizes that recycling of plastics is not only good for saving primary resources, but also cost efficient. Accurate, automated sorting of different plastics including food grade recycled rPET, is essential to achieve the industry’s high quality standards.
The TITECH autosort [flake] precisely analyzes and sorts flakes by material detection. The sophisticated sensor technology also allows the simultaneous detection of selected colors. Combining a field-proven mechanical set-up with advanced double sensor systems, the system improves plastic flake sorting efficiency significantly. A visible range spectrometer detects selected color contaminants whilst a near-infrared (NIR) spectrometer simultaneously identifies materials such as PET, HDPE, PP, PVC, PS and PLA. These features, combined with an especially narrow valve grid and a short distance between the measuring process and ejection, guarantee precise sorting.
Other advantages of the TITECH autosort [flake] include high throughput, with impressive product yield; short payback periods; modular design and easy integration with existing equipment and processes; the ability to sort flakes of any material; and the provision of remotely accessible online statistics about material processed.
Rubber sorting applications
TOMRA Sorting will also present its in-line synthetic rubber crumb and plastics pellets sorting solutions. Synthetic rubber defects identified by the system – such as gels, wet spots and discolorations – can be removed with great accuracy, guaranteeing perfect defect removal and minimal good product loss. TOMRA Sorting’s powerful combination of detection methods – including laser scanners, cameras and spectroscopy – allows users to select multiple potential sorting parameters.