Herbold Meckeshiem GmbH presents its new solutions for washing, separating and drying of plastic waste at Plast 2015.
One of the highlights is the Herbold wet shredder HGM, for which a new feature, at the beginning pre-size reduction step water is added. Until recently, water was only used in the granulation process where further size reduction occurred.
The advantages of wet granulation are: less wear and tear, no plastification due to the optimum cooling during the size reduction process, and an effective separation from the first processing step.
This technology is suited for highly contaminated material such as agricultural film. It is also suitable for post-consumer film from households and wet granulation has significantly increased the life between knife changes enabling a more economic operation.
Even problematic material such as wood and paper fractions inside the input material can be handled better through the wet shredding as water allows for liberation from the material early on in the process, said Herbold.