MACHINERY | SCREENCHANGERS & MELT FILTRATION
Right: Non-stop filtration
equipment can be retrofitted to existing or new machinery, says BBE
“Sustainable technologies for recycling and
the circular economy are becoming increasingly important – whether they are solutions for mechanical or chemical recycling or ma- chines optimised for energy and resource efficiency for the produc- tion, processing or treatment of plastics,” said Ueli Thürig, president of Maag.
Non-stop filtration BB Engineering (BBE), based in Remscheid, Germany, says it has recently grown its capabilities in rPET fine filtration. It says its non-stop filtration equipment can be retrofitted to existing or new machinery to make it rPET-ready. The company says an interruption-free process
is guaranteed by an easy switch-over between congested and clean filter inserts. “With an increasing demand for high-quality
applications like melt spinning, the requirement for finer filtration is gaining importance,” said Matthias
Schmitz, head of engineering recycling technology at BBE. “Filter ratings of 20 microns or finer are in operation.” One of BBE’s latest innovations is called white filter cleaning (WFC), a pre-cleaning system for filter media and filter housings that does not use hazardous and harmful chemicals such as TEG. Instead, superheated steam is used to remove residues on the filter media via hydrolysis. The
treatment is environmentally friendly and improve performance and extends filter life, he says. “With WFC, we are offering an alternative to TEG cleaning, and a
solution to reduce filter cleaning costs by 50%,” he said. “It uses nothing but superheated steam to free the filter cartridges from polymer and con- tamination via hydrolysis. A quick switch between production and cleaning reduces manpower to a minimum and guarantees reliable availability of the filtration.”
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IMAGE: BB ENGINEERING
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