UK recycler upgrades with Stadler

UK recycler upgrades with Stadler
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Altshausen, Germany-based Stadler designed and built a dry mixed recyclables sorting plant in Hartlepool, United Kingdom, for J&B Recycling in 2008 and has since supported the company in a continuous improvement of the plant.

“We continually improve the plant, and our focus is producing the best quality material possible,” says Matt Tyrie, operations director at J&B Recycling.

The composition and density of the material stream are evolving constantly. “Over the years, the amount of cardboard has significantly increased,” says Benjamin Eule, director at Stadler UK Ltd. “Sorting plants are receiving bigger volumes of packaging generated by the growth of online shopping and deliveries. Another change that is having an impact is the switch to different printing techniques in magazines, which makes it more difficult to separate the ink from the fiber. Plastic packaging is also changing, with multilayers, and bottles with different types of sleeves resulting in detection becoming more challenging. Metals have also evolved since we first designed the plant in 2008, with a shift from aluminum to ferrous metal in drinks packaging, and the increasing volumes of coffee capsules which contain aluminum.”

For this reason, sorting plants must be able to process multiple materials flexibly while delivering the consistently high purity rates demanded by the recycling industry, Stadler says. The plants’ designs also need the flexibility to accommodate subsequent upgrades and modifications to meet the changing requirements.

Eule says, “The J&B Recycling plant was originally designed to process 12 [metric tons per] hour, with Stadler trommel screens, conveyors and ballistic separator taking care of the mechanical presorting, preparing the material flow for effective downstream processing. Conveyors make sure that the material is sent efficiently to the next sorting process and bunker storage conveyors hold the product before being baled.”

In 2017, J&B Recycling and Stadler worked together on a concept to remove paper and aluminum, adding a Tomra Autosort optical sorter and an eddy current separator.

Since then, six additional upgrades have further optimized the plant to meet evolving market demands. The latest upgrade, completed in March, aimed to achieve even higher paper purity and to increase capacity to 15 metric tons per hour.

“We installed a further optical sorter, the latest Autosort sorter, to remove film, plastic bottles and cardboard from the PAMS (newspapers, periodicals and magazines) fraction to achieve a 95 percent purity paper,” Eule says. “We recirculate the materials we removed into the plant to be reprocessed into their respective streams, increasing the recovery of the plant.”

“The upgrade has hit the targets we outlined, that is improve quality, reduce labor costs and increase throughput,” says Matt Tyrie, operations manager at J&B Recycling. “We have increased the quality of our hard mix grade by adding a laser object detection (LOD) system to the Autosort optical sorter to remove more nonfiber contamination. This technology allows each shift to run with reduced labor, and it has allowed the throughput to increase, as the quality of the hard mix was a bottleneck on the plant.

“In all the years we have worked with Stadler, the quality of their product and their ability to hit deadlines on the install stand out,” Tyrie adds. “We really appreciate the excellent planning of the projects and their ability to turn ideas and drawings into reality.”

A dosing drum feeds the material, which goes through a presort platform for the manual removal of old corrugated containers (OCC) and large film. A Stadler screening drum separates the remaining material into three fractions: fines, midsize and oversize.

The oversize materials, measuring more than 170 millimeters, or 7 inches, go through a quality control cabin and an Autosort to remove mixed paper, cardboard and plastics and produce a PAMS fraction.

The midsize fraction, smaller than 17 millimeters, or 7 inches, is separated into fines, 2D and 3D fractions by the Stadler STT2000 ballistic separator. The 2D flat fraction is processed through eddy current separators and Autosort optical sorter before a final quality control check to produce two streams: mixed paper and metals. The 3D rolling fractions follow a similar process, which begins with and overband magnet, to produce mixed plastic, high-density polyethylene and polyethylene terephthalate fractions. Fines are being processed to remove contaminants to create a glass product. All the output fractions, with the exception of glass, are baled and sold, according to Stalder.

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Source: Recycling Today
UK recycler upgrades with Stadler
<![CDATA[Altshausen, Germany-based Stadler designed and built a dry mixed recyclables sorting plant in Hartlepool, United Kingdom, for J&B Recycling in 2008 and has since supported the company in a continuous improvement of the plant.“We continually improve the plant, and our focus is producing the best quality material possible,” says Matt Tyrie, operations director at J&B Recycling.The composition and density of the material stream are evolving constantly. “Over the years, the amount of cardboard has significantly increased,” says Benjamin Eule, director at Stadler UK Ltd. “Sorting plants are receiving bigger volumes of packaging generated by the growth of online shopping and deliveries. Another change that is having an impact is the switch to different printing techniques in magazines, which makes it more difficult to separate the ink from the fiber. Plastic packaging is also changing, with multilayers, and bottles with different types of sleeves resulting in detection becoming more challenging. Metals have also evolved since we first designed the plant in 2008, with a shift from aluminum to ferrous metal in drinks packaging, and the increasing volumes of coffee capsules which contain aluminum.”For this reason, sorting plants must be able to process multiple materials flexibly while delivering the consistently high purity…