TECHNOLOGY | SHREDDERS
Above: The Micromat 1500 from Lindner Recyclingtech
plastics, while a four shaft RS40 with screen achieves a refined 30 mm fraction after processing SDA mix. Particle homogeneity is ensured by both machines. The shredded plastic is then transported via conveyor belt to the washing line with floating tank, to be cleaned and dried. ABS/PS and PP/PE material is then run through an electrostatic separator to create pure, high value ABS and PS flakes for re-manufacturing. Having rigorously tested the processing line, 3R
Technology is now looking for more material for next year and beyond, with the site capable of recycling various plastics, including flat-screen TV cases, computer monitor housings, and computer- based peripherals. The goal is to reach an annual processing milestone in excess of 5,000 tonnes this year, with plans to open two further plants in the south of England and Scotland, in the near future. According to 3R Technology’s founder and chief
executive officer Yu Lin Wang: “The UK’s WEEE recycling capabilities are continuously improving. However, the focus is usually the processing of metallic content. We are therefore partnering with WEEE and scrap metal handlers, to tackle the 50% mixed plastic that typically remains once redundant appliances have been shredded. This still has a significant resource value, which often is not realised in the UK.” This is not 3R Technology’s first Untha invest-
ment. According to Wang, the company uses Untha at its Dutch plant also. He adds that Untha shred- ders make the job of the downstream technology much easier – a further 3-5% clean metal can be segregated from the floating table, which boosts the revenue stream. 3R Technology also has WEEE recycling facilities in Serbia and the Netherlands. Lindner Recyclingtech has developed the
Micromat to shred waste materials reliably and efficiently. The Micromat series features the Mono Fix rotor, which guarantees universal applicability
24 PLASTICS RECYCLING WORLD | May/June 2022
by enabling different or mixed rotor configurations. Various pointed or flat knives and special counter knives can be fitted to the same rotor as required, depending on the input material. As a result, the Mono Fix technology ensures a high and consistent throughput with a wide range of materials that are often classified as difficult. Vecoplan has developed the high-performance VIZ 1700, one of the largest and most energy-effi- cient shredders in its product range, offering a high level of availability, low operating costs and maximum throughput. The company says that the system gives users a great deal of flexibility because it can shred completely different plastics. The shredder can be precisely adapted to different input and output requirements by selecting the right rotors, knives and screen. Shredding perfor- mance can be matched to the interface. However, due to the concept of bolted tool holder plates with variable cutting tip sizes, rotor changes are no longer required. Users only need to exchange the tool holder plates to adapt the cutting geometry quickly and easily to different output grain sizes. HiTorc drive is available for the VIZ, which offers a high level of start-up power and high torque. Hellweg Granulators has equipped its full
product range with the digital Smart Control System. The control system detects parameters such as power consumption, motor speed and bearing temperatures, as well as the state of blades, screens and V belts. The recent implementation of the Ethernet-based, cross-system OPC UA standard means the machines can now be integrated into control centre systems. In addition to providing component monitoring and interconnection with other machines, the control system also has a ‘boost’ mode for adapting grinding capacity to production- related fluctuations. Adaption of operating param- eters to defined plastics means that even tempera- ture-sensitive grades can be straightforwardly processed without water cooling. The ‘eco’ operat- ing mode adjusts machine speed to the prevailing input volume, so reducing power consumption.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.cmg-granulators.com �
www.weima.com �
www.healix.eco �
www.herbold.com �
www.bca-industries.com �
www.untha.com �
www.3rtechnology.uk �
www.lindner.com �
www.vecoplan.com �
www.hellweg-granulators.com
www.plasticsrecyclingworld.com
IMAGE: LINDNER
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