Dings Magnetic Group 2 PULLEY EDDY CURRENT SEPARATOR User Manual

2 pulley eddy current separator

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IMPORTANT SAFETY INFORMATION

CAUTION: STRONG MAGNET
Rare earth magnets in the magnetic rotor assem-
bly are extremely powerful. They can project mag-
netism through a considerable distance and exert
strong pulling force on magnetic metals. Use of
iron or steel tools near the magnet could cause
injury to personnel or damage to the separator.
Strong magnetic field may have an affect on
pacemakers and other electrical devices.
Please contact the device manufacture for further
information.

Wear eye protection, such as safety glasses, when
adjusting the splitter or observing the operation of
the separator.
Always stop the separator before cleaning any
component.

Preventing damage to the separator:

When unloading the eddy current separator or
moving it, do not place it near angle iron structures
or truck floors or walls that are steel.
The separator should be handled gently when picking
it up or setting it in position. Although it is ruggedly
designed for heavy-duty operation, the magnets
and shell are brittle and a sudden shock or blow
could damage them.
Clean off any ferrous metal particles which may
have accumulated on the magnetic rotor during
shipment (see page 6).
The rotor is a high inertia load on the rotor motor, so
special consideration must be taken during start-up.
The motor can be started no more than once in a 15
minute period. After shut down, allow the motor to rest
for at least 15 minutes before restarting.

DESCRIPTION

The Dings eddy current system separates nonferrous metals
such as aluminum, die-cast metal, and copper from non-
metallic material.

WARNING: An eddy current separator is designed
to remove nonferrous metals. It is NOT designed
to be a source of magnetic ferrous separation.

Serious damage will occur if magnetic separators such

as pulleys or drums are not used to remove the ferrous metal
from the burden before it reaches the eddy current system.
At least two stages of magnetic separation are recommended
prior to the eddy current separator. Large pieces of steel or
other ferrous can damage or crush the wear cover of the
magnetic rotor. Small ferrous particles can accelerate wear
on the rotor cover and the belt and ultimately cause failure.

A strict maintenance plan to ensure the cleanliness of

the magnetic rotor will extend the life of the shell (see page
6).

PRINCIPLES OF OPERATION

Material is fed onto the conveyor belt of the eddy current
separator, which moves it across the magnetic rotor where
separation occurs (Fig. 1). The two streams of material dis-
charge into a housing. The housing has a splitter to divide
the nonferrous metal from the nonmetallic material, such as
paper, plastic, wood or fluff.

The key component of the eddy current separator is the

magnetic rotor, which has a series of permanent rare earth
magnets mounted on a support plate attached to a shaft.

Bulletin 9000F1 (10/11)

2 PULLEY EDDY CURRENT SEPARATOR

M

AINTENANCE AND

O

PERATING

I

NSTRUCTIONS

Check immediately when the eddy current separator is received for possible shipping damage. Report
damage to the delivering carrier.

Read this bulletin carefully before operating the separator. It is important that a strict maintenance

plan for the magnetic rotor be followed (see page 6) to ensure a long life for the separator.

Figure 1 - Nonferrous Separation

U.S. Patent Nos. 5,626,233 and 5,655,664

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