Background
With the increasing awareness of environmental protection among people and the promotion of relevant government policies, the recycling and disposal of waste refrigerators has become a focus of social attention. The market demand continues to grow with the acceleration of home appliance updates, providing broad development space for refrigerator recycling lines. At the same time, technological advancements have made refrigerator recycling lines more efficient and environmentally friendly, effectively improving the resource recycling and utilization rate of waste refrigerators.
Recycling process
The refrigerator recycling line is an automated processing flow that integrates multiple professional mechanical equipment, aiming to efficiently and environmentally recycle and dispose of waste refrigerators. Its core equipment includes plate chain conveyors, shredders, crushers, cold presses, and a series of precision sorting machinery.
Firstly, the waste refrigerators are smoothly and continuously transported to the starting end of the processing line through a plate chain conveyor. The plate chain conveyor, with its sturdy, durable, and stable operation, ensures the smooth transfer of waste refrigerators throughout the entire processing flow.
Subsequently, the waste refrigerator enters the shredder for preliminary crushing treatment. The shredder adopts a dual axis design, which crushes complex structural materials such as the outer shell and insulation layer of the refrigerator into smaller blocks through strong shear and tearing forces.
After initial crushing, the material enters the crusher for further fine crushing treatment. The crusher uses high-speed rotating blades to impact, shear, and squeeze materials, reducing their particle size to a smaller range.
During processing, light materials such as foam will be compressed by cold press. The cold press reduces the volume of foam materials through its powerful compression force, which is convenient for storage and transportation.
Finally, the finely processed material enters a series of precision sorting machines for separation and classification. These sorting machines include magnetic separators, eddy current separators, wind separators, etc. They use physical principles such as magnetic fields, eddy currents, and wind to efficiently and accurately separate iron materials, non-ferrous metals (such as copper, aluminum, etc.), and non-metallic materials such as plastics, achieving the maximization of recycling and utilization of waste refrigerator resources.
Proportion of recycled components in refrigerators
Plastic: accounting for about 20% -30%, mainly from components such as inner liners and door linings.
Foam thermal insulation material: about 10% -15%, mainly from the refrigerator insulation layer.
Nonferrous metals (copper+aluminum): accounting for about 2% -5% in total, mainly from condensers and pipelines.
Iron materials: accounting for about 50% -60%, from internal brackets, shells, and compressors.
Other materials: accounting for about 5% -10%, including auxiliary components such as glass and rubber.
Advantage
Highly automated and integrated: equipped with automated conveying and control systems, integrating various professional equipment, reducing manual intervention, and improving processing efficiency.
Efficient crushing and fine sorting: using high-strength cutting tools for rapid crushing, combined with magnetic separation, eddy current sorting and other technologies, to achieve effective separation of iron, non-ferrous metals and plastics.
Energy saving, environmental protection and safety: Sealed design and multi-stage filtration reduce pollution, equipped with safety protection measures to ensure safe operation.
