Gewebesack-Waschmaschinen Lieferanten
Finden Sie geprüfte B2B-Lieferanten von Gewebesack-Waschmaschinen auf Towobo — vollständige Schredder-, Wasch- und Granulierlinien für PP-Gewebesäcke, FIBC-Big-Bags und recyclierte Rafia-Verpackungen.
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Gewebesack-Waschmaschinen-Lieferanten finden →Processing woven PP bags — the washing sequence
Recycling woven PP bags involves several distinct processing challenges. Woven bags are difficult to shred uniformly — the interlocked raffia strips catch in standard shredder teeth. Specialist wet shredders or granulators with appropriate cutting geometry are needed to reduce the bags to manageable flake sizes (typically 30–60mm). Contamination in used woven bags can include cement dust, fertiliser residues, soil, sand, and food materials — varying significantly by end-use application. A typical woven bag washing line comprises: a shredder or wet granulator; a pre-soak or trommel wash for initial loose contamination removal; a high-capacity friction washer designed for the fibrous flake; a rinse tank; a centrifugal dryer; and thermal dryer. For cement or mineral-contaminated bags, additional stages including a sink-float tank and a second friction wash stage may be needed. The PP raffia flake produced after washing and drying is fed to a pelletising extruder — the compounding step re-agglomerates the fibrous material into uniform pellets suitable for downstream processing.
Key design considerations for woven bag washing machines
Friction washers in woven bag washing lines must handle the fibrous, lightweight nature of shredded PP raffia. Insufficient rotor speed and clearance causes poor washing; too aggressive a design breaks fibres and generates fines. The friction washer design — rotor diameter, rotor speed, internal liner material, and clearance between rotor and liner — should be confirmed with the machine manufacturer for the specific input material. Water consumption: woven bag washing is water-intensive, particularly for cement or mineral-contaminated input. A closed-loop water treatment system with settlement and filtration is essential. Confirm water consumption (m³/tonne of plastic processed) and wastewater quality with the supplier. Throughput ranges: small woven bag washing lines typically process 300–800 kg/hour; medium lines 800–2,000 kg/hour. The market for recycled PP from woven bags includes woven bag re-manufacturers, plastic pipe producers (reinforced applications), injection moulders, and fibre producers.