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Paper Plant Waste Plastic Recycling: Transform Low-Quality Plastics Wastes into Resources
Time:2025-07-10
What are low-quality plastic wastes? Low-quality plastics (e.g., mixed plastics, food packaging bags, printed films, paper plant waste plastic / paper factory waste mixed plastic (braided scrap)) are traditionally challenging to process due to complex compositions and high impurity levels.
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Technological advancements now enable resource recovery through multiple pathways:
| 1.High-Temperature Pyrolysis into Diesel: | Plastic polymer chains break down under high temperature and oxygen-free conditions, converting into liquid fuels like diesel. After purification, this fuel powers industrial boilers or generators, achieving waste reduction and energy recovery. |
| 2.Production of RDF (Refuse-Derived Fuel): | Shredded and dried low-quality plastics, mixed with other combustible waste, form high-calorific-value RDF. It replaces coal or natural gas in waste-to-energy plants or cement kilns, enabling energy substitution and non-hazardous treatment. |
| 3.Washing and Pelletizing: | Processes like sorting, shredding, washing, and melting remove impurities to produce recycled plastic pellets. These pellets, suitable for lower-performance products (e.g., pipes, nets, strapping), reduce petroleum consumption and virgin plastic reliance. |
| 4.Direct Compression Molding: | Minimally processed plastics with lower impurity content undergo high-temperature/high-pressure molding to directly produce items like pallets, basins, or chairs, saving purification costs and enabling rapid resource conversion. |
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| Paper pulp waste pelletizer is mainly used in the production of lightweight materials or multi-level filtration of highly mixed materials, there is a prominent effect on the corner of the paper mill, the whakes and mechanical plastic machines make equipment easily and eligible for poor conditions such as high temperature, high pressure, water. The high requirements for continuous uninterrupted work; and create conditions for the upgrading of the equipment into a Paper pulp waste pelletizer large feed joint unit. |
Case Study: Compression Molding Rebirth of Paper Plant Waste Plastic (Braided Scrap)
Paper mill braided scrap contains wires, plastic flakes, and organic matter. Traditional recycling is inefficient and polluting. A modern 3-step process enables efficient utilization:
Pre-treatment: Dual-shaft shredding creates fragments while simultaneously washing, removing metal (de-ironing), and dewatering (reducing moisture).
Plasticizing: Plastic fragments are melted into a fluid melt under heat and mechanical force.
Compression Molding: The melt is injected into molds and formed under high pressure into finished products (e.g., pallets, chairs).
This low-energy process minimizes secondary pollution, boosts economic returns, and transforms waste into resources.
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Integrated Benefits:
These diversified pathways solve environmental challenges while creating significant value: reducing landfill volume, substituting traditional energy sources, lowering petroleum dependence, and turning low-quality plastics from an “environmental burden” into a “urban mine,” strongly supporting the circular economy and sustainable development.
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