About Project:

Challenge of Ousehold Waste Film:

Household waste film (post-consumer) is significantly more difficult to process than industrial waste. Our Japanese client faced three primary hurdles:

• High Contamination: The raw material contained high levels of organic waste, paper labels, and grease.
• Water Management: Strict Japanese environmental regulations regarding industrial wastewater discharge.
• Strict Quality Standards: The final flakes needed a moisture content of <3% to ensure stable extrusion in the next stage.

Customized Recycling Solution:

Purui Machinery engineered household waste film washing line specifically for this high-capacity requirement:

• Intelligent Pre-Shredding: Used a large-diameter single-shaft shredder to handle baled film, ensuring a consistent 1500kg/h flow without jamming.
• Advanced Sink-Float Separation: Customized stainless steel tanks with multiple paddle wheels to effectively separate heavy plastics (PVC/PET) and sinkable debris from the PE/PP film.
• High-Speed Friction Washing: Our 1200rpm friction washer removes stubborn adhesives and organic residues through high-intensity centrifugal force.
• Plastic Squeezer: The moisture after squeeze dryer will be lowered down to 1-3%.

Results & Performance:

• Final Output Purity: Over 98.5% clean flakes.
• Automation Level: Controlled by a centralized Siemens PLC system, requiring only 3-4 operators for the entire 1500kg/h line.
• Sustainability: Integrated water filtration system reduced fresh water consumption by 40% through closed-loop recycling.

Why the Client Chose Purui Machinery?

“We selected Purui not only for their competitive pricing but for their technical transparency. Their willingness to adjust the friction washer’s RPM and the drying path length for our specific material gave us the confidence we needed.” — Production Manager, Japan Recycling Facility.

FAQ:

Q1: How does the system handle high contamination in household waste?

A: We use a multi-stage process: a high-torque shredder for opening bales, followed by high-speed friction washers to strip organic residue and grease, and heavy-duty sink-float tanks to remove sand and heavy contaminants.

Q2: What is the final moisture content of the flakes?

A: Through our integrated centrifugal dewatering and thermal pipe drying system, we guarantee a final moisture content of <3%, making the flakes ready for immediate high-quality pelletizing.

Q3: How many operators are required for 1500kg/h recycling line?

A: Thanks to our centralized Siemens PLC automation, the entire line from feeding to discharge requires only 3 to 4 operators per shift.

Q4: Can the system be customized for specific film types (e.g., agricultural vs. household)?

A: Absolutely. We adjust the modular design—such as adding pre-washing units for sandy agricultural film or increasing friction intensity for oily household waste—to match your specific raw material profile.