Packaging Film Recycling and Washing Line

Product Overview

The packaging film recycling and washing line is a customized, full-process pre-treatment production line for waste plastic films, capable of integrating crushing, washing, and dehydration into a single operation. This equipment employs multi-stage processes to thoroughly remove sand, ink, and both light and heavy impurities from used films, ultimately producing clean, dry film material that can be directly fed into subsequent pelletizing processes, providing a high-quality pre-treatment foundation for plastic recycling. The equipment can be custom-designed according to customer production requirements, with processing capacities ranging from 500 to 2,000 kg/h, making it suitable for recycling various types of packaging film waste. It combines core advantages of high efficiency, energy savings, and automation, effectively addressing many pain points in the recycled plastics industry.

Technical Principles and Process Flow

This equipment utilizes a five-stage closed-loop process—“crushing + frictional washing + flotation separation + rinsing + squeezing”—with each step specifically designed to target different types of impurities in used films, ensuring thorough washing while maintaining processing efficiency:

1. Coarse Crushing Stage: Bulk or whole-roll waste film is conveyed by a belt feeder into a twin-shaft shredder, where it is coarsely cut into strips measuring 8–15 cm. This step effectively breaks down bridging issues caused by large, bulky materials, ensuring smoother material transport in subsequent stages and preventing blockages or jams.

2. Fine Crushing Stage: Strip-shaped film enters a high-speed pulverizer, which cuts it into small fragments measuring 1–3 cm, greatly increasing the material’s surface area and providing ample contact for subsequent deep washing, allowing impurities to be more thoroughly removed.

3. High-Speed Frictional Washing: After entering a horizontal frictional washer, spiral blades cause the material to collide at high speed and undergo self-friction, working in conjunction with flowing clean water to vigorously strip away surface sand, dust, and floating ink. Removed impurities are discharged through side-wall screens along with wastewater, completing preliminary washing.

4. Flotation Separation and Rinsing: Material after frictional washing flows into a primary flotation tank, where paper labels, airborne dust, and lightweight plastic impurities are carried away with the water flow, while heavier sand and metal debris settle at the bottom for periodic discharge. Within the tank, a screw conveyor performs further rinsing to eliminate residual impurities.

5. Secondary Clean Water Rinsing + Squeezing: Following flotation separation, the material proceeds to a secondary clean-water rinsing stage, removing any remaining fine impurities before being sent to a screw-type dewatering machine. Physical squeezing removes excess moisture, with screens filtering out residual fines, ultimately yielding clean dry film material with a moisture content of ≤5%, ready for direct entry into downstream pelletizing processes.

Key Performance Data

1. Processing Capacity: 500–2,000 kg/h; equipment specifications can be tailored to meet specific customer production needs, accommodating enterprises of varying scales.

2. Sand and Dust Removal Rate: ≥96%, enabling thorough elimination of various impurities in used films and ensuring the cleanliness of the final dry film product, meeting the requirements of downstream pelletizing processes.

3. Moisture Content After Squeezing: ≤5%; low-moisture dry film can be directly fed into pelletizing operations, avoiding issues such as bubbling or broken pellets caused by excessively wet feedstock, thereby improving the quality of the final pellets.

4. Water Recycling Rate: ≥88%; the equipment features a closed-loop water circulation design, allowing most wash water to be reused, significantly reducing water consumption during production and alleviating pressure on wastewater treatment.

Core Product Advantages

1. High Efficiency and Energy Savings: With a water recycling rate of ≥88%, reusing wash water reduces water consumption per ton of material by 80%, substantially cutting costs while also decreasing the burden of wastewater treatment, aligning with green manufacturing principles.

2. High Degree of Automation: The entire process uses automated belt conveyors to transfer materials, minimizing manual handling. Only two operators are needed to oversee the entire line, reducing labor costs by 65% and eliminating inefficiencies associated with manual operations, thus enhancing production continuity and stability.

3. Exceptional Durability: The friction chamber and screens are crafted from wear-resistant materials, extending the equipment’s service life, reducing maintenance frequency and component replacement needs, and lowering long-term operational costs.

4. Superior Washing Performance: With a sand and dust removal rate of ≥96%, this equipment effectively eliminates various impurities, producing clean dry film that can be directly fed into pelletizing processes, preventing frequent screen clogging due to excessive contaminants and boosting the efficiency of downstream pelletizing operations.

Core Product Value

1. Cost Reduction and Efficiency Gains: By achieving a high water recycling rate, reducing water consumption, automating operations to lower labor costs, and extending equipment lifespan through durable materials, this product helps businesses cut production and operating expenses across multiple dimensions.

2. Enhanced Product Quality: The clean dry film produced has a moisture content of ≤5% and an impurity removal rate of ≥96%, preventing issues like bubbling, broken pellets, or screen clogging during pelletizing, thereby improving the consistency and quality of the final pellets.

3. Optimized Production Workflow: With integrated, end-to-end operations, no manual material transfers are required, and clean dry material can be directly fed into pelletizing processes, increasing workflow efficiency by 50% and streamlining the overall plastic recycling process for higher productivity.

Target Customer Base

This equipment primarily serves film recycling plants, resource regeneration industrial parks, large-scale plastic recycling enterprises, and packaging film manufacturers—businesses that typically have substantial needs for processing waste plastic films. Its customizable capacity, efficient washing performance, and automated operation precisely match their production requirements, helping them improve both the efficiency and quality of their recycled plastic processing efforts.

Application Scenarios

The packaging film recycling and washing line is suitable for pre-treating various types of film waste, including agricultural greenhouse films heavily contaminated with sand, industrial packaging stretch films, BOPP/CPP waste films, courier plastic bags, and adhesive composite films. These diverse types of used films often carry distinct impurities—for example, agricultural greenhouse films may contain significant amounts of sand, courier bags may bear ink and paper labels, and industrial stretch films might be coated with oil. The equipment’s five-stage closed-loop process can selectively remove these varied impurities, providing effective pre-treatment solutions for different kinds of film waste.

Solutions to Industry Pain Points

1. Addressing Frequent Screen Clogging During Pelletizing Caused by Contaminated Films: With a sand and impurity removal rate exceeding 96%, this equipment significantly reduces the amount of impurities entering the pelletizing process, cutting the frequency of screen changes by 75% and enhancing the continuity and efficiency of pelletizing operations, thereby minimizing production interruptions caused by screen replacements.

2. Solving Low Manual Washing Efficiency and Unstable Cleanliness: With fully automated operations, there’s no need for manual handling or hand-washing. Standardized processes ensure consistent washing results for every batch, while processing speeds far surpass those of manual methods, meeting the demands of large-scale production.

3. Tackling High Water Consumption and Expensive Wastewater Treatment: With a water recycling rate of ≥88%, water usage per ton of material is reduced by 80%, significantly cutting fresh water consumption and easing the load and cost of wastewater treatment, thus satisfying environmental regulations and corporate cost-reduction goals.

4. Mitigating Issues of Excessive Moisture Leading to Pelletizing Bubbles and Broken Pellets: The equipment’s squeezing process controls moisture levels to ≤5%, producing clean dry film that can be directly fed into pelletizing operations, avoiding quality problems caused by wet feedstock and improving the pass rate of finished pellets.

Frequently Asked Questions (FAQ)

Q1: What types of waste film can this packaging film recycling and washing line process?
A: This equipment can handle agricultural greenhouse films heavily laden with sand, industrial packaging stretch films, BOPP/CPP waste films, courier plastic bags, adhesive composite films, and other types of film waste. Its five-stage closed-loop process can selectively remove different kinds of impurities.

Q2: Can the equipment’s processing capacity be customized?
A: Yes, this equipment is a custom-made product with no fixed price. It can be tailored to meet specific customer production needs, offering processing capacities ranging from 500 to 2,000 kg/h to suit enterprises of varying sizes.

Q3: What costs can be reduced by using this equipment?
A: With a water recycling rate of ≥88%, water consumption per ton of material is reduced by 80%; fully automated operations require only two operators, cutting labor costs by 65%; and the use of wear-resistant materials extends equipment lifespan, lowering maintenance expenses.

Q4: Can the dry film produced be directly fed into pelletizing processes?
A: Yes, the clean dry film produced by this equipment has a moisture content of ≤5% and a sand and dust removal rate of ≥96%, requiring no additional treatment before being fed directly into downstream pelletizing operations, increasing workflow efficiency by 50%.