Gneuss' turnkey solutions for direct reuse of fibre and film waste will form a central part of its CHINAPLAS exhibition this year.
Gneuss
MRS extrusion system with Multi Rotation Extruder MRS, Rotary Filtration System RSFgenius, Online Viscometer VIS.
In the manufacture of semi-finished products such as fibres or films, waste that can be recycled and reused as a raw material is repeatedly produced along the entire production chain. Reclaiming waste reduces the need for raw material and thereby saves on production costs.
In cooperation with worldwide specialists, Gneuss offers complete system solutions including size reduction, feeding and extrusion.
Depending on the quality of the material to be recycled, either a shredder or a cutting mill can be used to guarantee good dosing properties of the output material. This very light material is then either directly fed to the MRS Extruder by means of feeding components (stuffing screw) or a further processing step takes place for compacting the material before it is fed to the extruder.
Even fibre coated with spin finish oils and other contaminants and with a high residual moisture level can be fed directly into the extruder without any pre-treatment.
The material is plasticised, devolatilised and decontaminated in the extruder. Volatiles such as water or spin finish oils are extracted. Even when different moistures are employed the material’s intrinsic viscosity (IV) is very consistent.
A significant element of Gneuss industrial waste recycling is the modular set-up of the individual components, combined with the innovative MRS extruder. With its extremely efficient devolatilisation performance thanks to the huge surface area renewal rate in the multi rotation section the MRS extruder processes recycled material to a final product without compromising quality.
More than 50 MRS extruders of all sizes, from the MRS 35 for 35 kg/h to the MRS 200 for 2000 kg/h, are now successfully in operation world-wide, mainly in sheet, fibre and repelletising applications. The MRS extrusion technology is now established as one of the key technologies for processing PET reclaim without pre-drying. Thanks to the patented combination of single screw extruder with a multiple screw section, the extruder is very sturdy and particularly well suited for recycling applications.
Gneuss will show the latest generation of its innovative Multi Rotation System extrusion technology at CHINAPLAS.
Depending on the feed product and the requirements profile, the "shredding", "compacting" and "extruding" segments are brought together to form an industrial waste recycling system, and the respective most optimum system solution is achieved for the user.
The advantages of the modular design are obvious: The optimum process for feeding into the extruder is selected for every type of waste produced. The MRS removes moisture, spinning oils or other adhering volatile components and solid contaminants are removed in the subsequent filtration, with the result that the melt produced comes close to having the properties of new product.
When processing recyclates, filtration is an important element for ensuring quality and economy. The Gneuss rotary filtration systems work fully automatically, with constant pressures and processes, and guarantee a pure and high-quality melt.
Gneuss will exhibit a self-cleaning, process-constant and pressure-constant Rotary Filtration System RSFgenius 75 at CHINAPLAS.
Hall E1, Stand C21