The eddy current non-ferrous metal separator is a machine used in recycling lines to separate non-ferrous metals (such as aluminium, copper and brass) from the rest of the materials, which offers high performance with a working surface of 500 x 1950 mm and a power of 5.5 kW . It is designed to work with non-ferrous metal particles ranging in size from 1mm to 300mm , making it very versatile in various recycling sectors.

Appearance and components

Visually, the separator looks like a robust machine, typically equipped with a conveyor belt on which the material to be treated is positioned. The heart of the machine is the high-speed magnetic rotor mounted inside the ribbon roll. When the rotor spins rapidly, it generates a variable magnetic field that induces eddy currents in non-ferrous metals, repelling them out of the flow of materials thanks to the resulting force.

Mechanical characteristics

The machine is built with a durable chassis to withstand industrial wear and tear, and has low running costs and limited maintenance requirements . One of its distinctive features is the ability to separate metals with different electrical conductivity and density characteristics, allowing it to handle metals of variable shape, mass and size, such as aluminum and copper. The machine works continuously thanks to the precision of the magnetic field , ensuring high efficiency.

Procedure for use

The use of the eddy current separator is simple: the mixed material is transported by the belt, and, passing over the magnetic rotor, the non-ferrous metals are diverted from the material flow and collected separately. The speed of the belt and rotor can be adjusted based on the type of material to be processed and the conductivity of the metals to be separated.

Sectors of use

This type of separator is widely used in the recycling of municipal solid waste (MSW) , in the treatment of electronic scrap (WEEE) , and in the management of ash from incinerators (IBA) . Other fields of application include the refining of aluminum scrap and the separation of non-ferrous metals from glass or wood waste .

Maintenance and evaluation of used vehicles

The separators require minimal maintenance, which includes cleaning the magnets and periodic checks of the moving components. When evaluating a used model, it is important to check the condition of the permanent magnets and the rotation speed of the rotor. Conveyor belts must also be in good condition to ensure optimal efficiency. If well maintained, this machine can be an excellent investment, offering reliability and cost savings compared to purchasing new machines.

Mathematical formulas and parameters of use

To optimize the operation of the separator, the rotation frequency of the rotor and the speed of the belt must be adapted to the size and mass of the non-ferrous metals to be separated. The basic formula for calculating the optimal separation speed is based on Faraday's law of electromagnetic induction : V=B⋅L⋅fV = B \cdot L \cdot f $V$ $=$ $B$ $\cdot$ $L$ $\cdot$ $f$ where:

• VV $V$ is the electromotive force,
• BB $B$ the magnetic field,
• LL $L$ the length of the tape,
• ff $f$ the rotation frequency.

Conclusion

The purchase of a used eddy current separator represents an economical and practical choice for those looking for a reliable and well-established solution for waste treatment. With low operating costs and long life, it is a great option for those who work in recycling