When working, a high-frequency alternating strong magnetic field is generated on the surface of the sorting magnetic roller. When the conductive non-ferrous metal passes through the magnetic field, an eddy current will be induced in the non-ferrous metal. The eddy current itself will generate an opposite direction to the original magnetic field. Due to the repulsive force of the magnetic field, non-ferrous metals (such as copper, aluminum, etc.) will leap forward along their conveying direction to achieve separation from other non-metallic substances and achieve the purpose of sorting; the main distinction criterion It is the ratio value of material conductivity and density, and the material with higher ratio value is easier to separate than the material with lower ratio.
The structure of the eddy current separator:
- Outer frame: including the discharge port, the door frame (detachable), and the bottom frame (support and placement).
- Vibrating feeder: integrated design, connected to the bottom frame, directly conveys the material to the belt.
- Belt conveyor: The drum is an integrated design, which not only plays the role of sorting but also carries the belt for transportation, and is easy to be damaged.
- Eddy current magnetic roller: core parts, design, tolerance fit, magnetic.
- Discharge port shield: prevent the material bullets ejected from the rapid sorting from hurting people.
- Control cabinet: monitor the temperature, speed, start and stop of the equipment throughout the process.
The process flow of municipal solid waste sorting equipment is as follows:
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