Recycling process of the hottest waste plastics

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Recycling process of waste plastics

1. The resin production plant provides raw materials to the molding processing plant and mixing plant, and the waste generated in production is sold to the recycling plant or sold to the molding processing plant as secondary resin

2. The raw materials required for molding processing, but no matter which way, its standard configuration and adopted standard 1 are generally no different. There are three ways: new materials provided by resin suppliers and blending plants; Recycled materials (leftover materials, etc.) provided by recycling plants; The secondary processing plant provides defective products, substandard products, leftovers, etc

its products are sold to packaging plants, assembly companies and other users, and the waste generated during processing can be recycled within the scope allowed by its equipment or sold to recycling plants

3. The mixing plant buys the resin from the resin manufacturer, mixes it with additives and sells it to the molding plant. The waste produced can be reprocessed in the plant equipment or sold to the recycling plant. At present, many molding factories directly make their own ingredients, such as PVC molding processing plants; For polyolefin, if the mold cavity is calculated according to the known plastic part size and material shrinkage, it is d=m/(1-s). In order to simplify the calculation of ingredients in the mold design, the resin factory usually adds conventional additives during synthesis

4. The secondary processing plant processes plastic semi-finished products (such as plastic film, etc.) into finished products (such as plastic packaging bags, etc.), and the waste generated here is provided to the molding processing plant or recycling plant. Packaging plants, assembly plants and sales companies obtain products from molding plants or secondary processing plants and sell them to users after packaging and assembly

5. The plastic waste obtained by the recycling factory from various industrial production links is reprocessed and sold to the molding processing factory, and the small amount of waste produced is recycled by its own equipment

6. The last link of the plastic recycling network is the consumer. Some of the waste plastics produced by the consumer are collected and provided to the recycling factory for recycling, while the other part, due to the problems of recycling technology and cost, has become a public nuisance waste plastics, which can only be landfilled or incinerated

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