2016 | Recycling technology Fimic has
developed the Era filter,
which filters twice in sequence
Melt filter efficiency Ettlinger will use K2016 to showcase an enhanced range of high-efficiency melt filters. Its ERF series, which is suitable for heavily contami-
nated plastics, can now handle higher throughputs, while the Eco models are optimised for filtering PET and PE in film and foil lines – as well as low-viscosity thermoplastics and polyamide. The patented, continuously operating ERF and Eco
melt filters can be incorporated into almost any extrusion line. At the heart of both types is a rotating filter drum with conical perforations, through which the contaminated melt flows from the outside to the inside. Fimic has developed a new filter that is aimed
specifically at PVC processing. Its RAS technology is based on collecting a high level of contamination inside a hollow blade holder, and discharging it based on a pre-set pressure. Because of the level of contamination – usually
above 20% – the machine is set in continuous mode, so that the blade holder keeps slowly scraping the stainless steel screen and gradually accumulate the removed contamination. Fimic has also developed the Era filter, which filters
Ettlinger’s ERF series of melt filters is suitable for heavily contaminated plastics
twice in sequence. It is aimed at highly contaminated material, which requires two filtering stages in order to obtain a usable material. At the same time, Fimic will present a third filter model: its NET filters will use a metal mesh that filters continuously without any stop – and with no need to modify the extruder. Nordson has developed a new melt filtration system
for recycling highly contaminated plastics – saying it provides greater productivity than comparable ma- chines while maintaining constant melt pressure and product consistency. The BKG HiCon R-Type 250 transforms contaminated polyolefin or styrenic
plastics into clean, high-quality material, and exhibits less melt loss than traditional backflush systems, says Nordson PPS business unit
director, Sven Conrad. The system uses a
cylindrical ‘separating head’ – with knives arranged on its
surface in a helical pattern – to move contaminant particles
forward as the head rotates. “This cleans much more
58 FILM & SHEET EXTRUSION | October 2016
efficiently than commercial available filtration systems for highly contaminated polymers,” said Conrad.
Pilot line for PP Next Generation Group – which comprises NGR, Britas Recycling and Dr Collin – is to showcase a range of new processing methods and innovative technologies at K2016. A new pilot plant from Dr Collin will manufacture
polypropylene (PP) film. The film edge trims and film rolls will be further processed into recycled pellets by an NGR recycling machine. The processed plastics will then be returned back into film production. An inline melt characterisation unit, developed by Dr Collin, will also provide quality control of the new plastics raw material during recycling. In this setup, processing parameters will be further
monitored, recorded and analysed in real-time, and displayed for attendees on mobile devices in chart form, says the company. “The activities and competencies of our individual
companies produce a unique combination that is highly sought after by research institutes, universities, plastic processors and recycling companies,” said Josef Hochreiter, CEO of the Next Generation Group. Britas, meanwhile, will present the latest version of its band-melt-filter, which is now easier to operate, supports more flexible applications and allows for minimal operating costs. Finally, NGR’s Smart Dialog – which provides
process analyses – will feature in a live demonstration. Many evolutionary steps are increasing the output of NGR systems while providing lower energy consump- tion, says the company. Its P:React series will be presented for the first time, which follows the com- pany’s earlier LSP process. It says that the technology allows it to make recycled
pellets within minutes – which have better properties than virgin material.
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