What is the recycling process route of granulators? – Suzhou Polytime Machinery Co., Ltd.

Under the background of energy conservation and environmental protection, the voice of waste plastic recycling is increasing, and the demand for plastic granulators is also increasing. Industry experts said that due to the extremely rapid development of the global petrochemical industry in recent years, the demand for plastic granulators is increasing rapidly, which has broad development prospects.

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What are the plastic recycling technologies?

What is the recycling process route of granulators?

What are the plastic recycling technologies?

The regeneration technology of waste plastics can be divided into simple regeneration and modified regeneration. Simple recycling refers to the direct molding processing of recycled waste plastic products after classification, cleaning, crushing, and granulation, or the utilization of transition materials or leftover materials produced by plastic products processing plants through the cooperation and remolding of appropriate additives. The process route of this kind of recycling is relatively simple and shows direct treatment and molding. Modified recycling refers to the technology of modifying recycled materials through mechanical blending or chemical graftings, such as toughening, strengthening, blending and compounding, blending modification filled with activated particles, or chemical modification such as crosslinking, grafting, and chlorination. The mechanical properties of the modified recycled products have been improved and can be used as high-grade recycled products. However, the process route of modified recycling is complex, and some require specific mechanical equipment.



What is the recycling process route of granulators?

The basic process route of plastic recycling in a plastic granulator machine is divided into two parts: one is the treatment before granulation, and the other is the granulation process.

The leftover materials produced in the production process of the waste materials produced during commissioning do not contain impurities and can be directly crushed, granulated, and recycled. For the recycling of used waste plastics, it is necessary to sort and remove impurities, dust, oil stains, pigments, and other substances attached to the film surface. The collected waste plastics need to be cut or ground into pieces that are easy to deal with. Crushing equipment can be divided into dry and wet.

The purpose of cleaning is to remove other substances attached to the waste surface so that the final recycled material has high purity and good performance. Usually clean with clean water and stir to make other substances attached to the surface fall off. For oil stains, inks, and pigments with strong adhesion, can be cleaned with hot water or detergent. When selecting detergents, the chemical resistance and solvent-resistance of plastic materials shall be considered avoiding the damage of detergents to the properties of plastics.

The cleaned plastic fragments contain a lot of water and must be dehydrated. The dehydration methods mainly include screen dehydration and centrifugal filtration dehydration. The dehydrated plastic fragments still contain certain moisture and must be dried, especially the PC, pet, and other resins prone to hydrolysis must be strictly dried. Drying is usually carried out with a hot air dryer or heater.

Waste plastics can be plasticized and granulated after sorting, cleaning, crushing, drying (batching and mixing). The purpose of plastic refining is to change the properties and state of materials, melt and mix the polymers with the help of heating and shear force, drive out the volatiles, make the dispersion of each component of the mixture more uniform, and make the mixture achieve appropriate softness and plasticity.

The plastic recycling granulator machine reprocesses the waste plastics in daily life to generate the plastic raw materials needed by the enterprise again. The price of recycled waste plastics is far cheaper than the rising price of plastic raw materials in recent years. With the strong support of the state, the recycled plastic granulator has been continuously optimized and updated to achieve full, solid, and smooth recycled plastic raw material particles. Suzhou Polytime Machinery Co., Ltd. takes quality as its life, science, and technology as its leading and customer satisfaction as its purpose, and is committed to improving the quality of human life through technological progress and quality control. If you are engaged in waste plastic recycling or related work, you can consider our high-quality products.