paper plastics recycling plant

Paper-plastic composites (such as milk cartons and beverage packaging) are widely used in food and daily necessities packaging because they combine the properties of both paper and plastic. However, their composite structure makes traditional recycling difficult, and they were previously often landfilled or incinerated, resulting in resource waste and environmental pollution. In recent years, with stricter environmental regulations and advances in recycling technology, paper and plastic recycling rates have gradually increased, and specialized paper and plastic recycling plants have become a key force in promoting a circular economy.

Introduction to Paper and Plastic Recycling Equipment

The core equipment for paper and plastic recycling includes a crusher, hydraulic pulper, separation screen, centrifuge, and drying system. The crusher pulverizes waste paper and plastic into small pieces; the hydraulic pulper uses high-speed agitation and water flow to separate paper fibers from plastic and aluminum foil; cyclones and vibrating screens further purify the pulp and remove impurities; and plastic and aluminum foil are recovered through flotation or electrostatic separation. Advanced plants also use automated control systems to improve sorting accuracy and recovery efficiency.

The Paper and Plastic Recycling Process

Paper and plastic recycling consists of four main steps: sorting - crushing and pulping - separation and purification - and recycling. First, the raw materials are manually or mechanically sorted to remove foreign matter. Then, they enter the crushing and pulping stages, where paper fibers dissolve in water to form pulp, and the plastic and aluminum foil are separated. The pulp undergoes multi-stage filtration to produce recycled paper, while the plastic pellets are processed into plastic products, and the aluminum foil is recycled and smelted. This entire process maximizes resource utilization and reduces waste.

Paper and plastic recycling plants not only reduce environmental pollution but also conserve energy and raw materials. For example, recycling one ton of paper and plastic saves approximately 0.8 tons of wood and 0.3 tons of oil. With the advancement of intelligent sorting technology and increased policy support, the paper and plastic recycling industry will usher in greater development opportunities, promoting green packaging and sustainable development.