Magnets & Electromagnetic Separation
Magnetic Separation has been a fundamental method of materials sortation across a number of industries.
Many of the traditional recycling processes rely heavily on the use of
Magnets
to efficiently separate materials.
As the recycling industry grows and becomes more sophisticated the use of technology such as
Eddy Current
and
Electrostatic
Separation is becoming more common.
Awareness of
Permanent Magnet Recycling
is also increasing.
Magnets
Magnets have always played a critical role in the scrap recycling industry.
One of the fist things you learn in the
scrap metal
business is to always carry a pocket magnet on a chain
to assist in quick easy metal identification.
Suspending a pocket magnet along side of a metal sample can detect even the slightest magnetic draw.
Recycling businesses have traditionally replied upon Ferrous Metal Scrap Handling equipment with magnet attachments
to perform sorting, loading and handling of iron & steel scrap.
Cranes equipped with electromagnets are the standard method and essential to handle large volumes of ferrous scrap.
Over Belt or Cross-Belt Magnets suspended over a conveyor are a standard method for the separation of ferrous metal from
any stream of recyclable materials.
Magnetic Head Pulleys on a conveyor are also a common method for steel removal,
this method is commonly referred to as under belt separation.
Both Electromagnets and Permanent Magnet Separators are commonly used in different applications and designs of recovery systems
to perform magnetic material separation.
Eddy Current Separators
It an opposite effect to magnetic attraction, Eddy Current Separators use a repulsion effect to
divide streams of conductive materials from non-conductive (insulator) materials.
One of the most popular applications of Eddy Current systems is for the separation of aluminum cans
from
MRF
streams.
Exciting developments have expanded the potential for the selective separation of non-ferrous metals
with the use of finely tuned Eddy Current Separators.
Electrostatic Separation
Electrostatic Separation is a developing method of continuos automated material segregation.
The ability to attract or repel particles of various materials by passing them through an Electrostatic field
is a largely untapped area.
This approach is sometimes referred to as charged particle separation.
Electrostatic Separation is one method that is being attempted for the selective segregation of
one type of plastic regrind from another type of plastic.
Dropping plastic particles through a zig zag column is one approach that seems to hold some promise.
Conveying particles of materials over a rotating metal faced drum in the presence of a continuos electrostatic field
results in a separation effect of certain materials.
In a somewhat related field, the popularity of Electrostatic
energy harvesting
is a growing area of development.
Permanent Magnet Recycling
In the age of electrification the need to recover scrap magnet materials is increasing in strategic importance.
If you wish to recycle scrap magnets and magnet fragments and residues,
please feel free to ADD your inquiry to the
Magnet Recycling
exchange.
Magnetics & Electromagnetic Separation Information
For anyone seeking current information or research data on Magnetics & Electromagnetic Separation,
you may access and ask your
Recycling Questions
to a core group of experienced and knowledgeable recycling industry professionals.
Learn more about the industry with Recycling 101, You also may ask your Recycling Industry questions.
