Herbold Recycling
Herbold Washing/Drying Lines
Herbold - Post Consumer / Contaminated Plastics
.pdf download for Post Consumer Polyester (PET) Bottles
.pdf download for Contaminated Plastics
For post consumer or post industrial second hand, soiled and mixed plastics we provide washing, separation and drying machines and systems. The lines start off with waste material - often pressed in bales - and end up with clean, pure and dry regrind or flakes, ready for densifying, repelletizing or injection-molding. We supply systems for films (even very dirty agricultural films), injection-molded parts (used battery casings, bottle cases), and bottles (PE and PET).
Herbold Washing/Drying Lines
Depending on the raw material the washing and separation lines can comprise the following processing steps:
- storage of bales on belt conveyors or bale stores
- debaling in a rotating drum or a screw crusher
- hand sorting of big, easily visible foreign particles
- opto-electronic separation of PVC items
- pre-crushing to prepare pre-washing
- separation of ferromagnetic particles by drum or belt magnets
- separation of metals and heavy particles by pre-washing
- size reduction and washing in a washing granulator or high speed shredder
- separation of soiled water, fibering of paper in a friction washer
- separation of different kinds of plastics according to their specific weight by a hydrocyclone or a swim-sink tank
- hot washing for the separation of adhesives from polyester (PET) bottle flakes or other intractably adhesive contaminations
- mechanical drying
- thermal drying
- storage in special flake silos
- water circuit and waste water treatment
- densifying and/or extrusion with (if necessary) recrystallization and postcondensation
For details with regard to the different processing steps please see chapter individual components for washing, separation and drying.
Herbold Washing/Drying Lines
