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Sand Conditioning Equipment --> Palmer Magnetic Separators
Foundry Products:
Palmer Magnetic Separators
Puritan Separators from Palmer Machining.
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Palmer Magnetic Separators |
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General
The Magnetic Drum Separator is often necessary
insurance in any ferrous foundry operation against the potential damage to
“downstream” equipment caused by tramp metal or other ferrous metallic
objects that might bypass any faulty or inadequate screening in the shakeout
area.
The unit is normally (in a chemically bonded
system) located at the discharge end of a lumpbreaker where the sand lumps
have been reduced to grain-size. As the sand spills over the edge of the
discharge chute of the lumpbreaker, it is fed into the inlet hopper of the
magnetic drum separator from where it is gravity fed to the drum which is
revolving around a sectional, stationary, permanent magnet.
The magnetic field attracts and holds ferrous
particles to the outer surface of the drum while the non-magnetic material
falls freely from the drum surface down a discharge chute for sand only. The
ferrous particles are carried beyond the magnets’ influence where they fall
off and down a separate chute dedicated to trap ferrotic material. The unit
provides not only excellent separation, but controlled feed.
The section of the hopper that surrounds the
drum is manufactured from non-magnetic stainless steel to prevent induced
magnetism. The inlet chute of the unit is designed to direct the flow of
incoming material across the face of the drum, providing increased
efficiency of separation. The design also prevents heavier pieces of metal
from hitting and damaging the drum surface.
NOTE: To avoid problems both in the
Cooler/Classifier and the molding area from undesirable contaminants that
might be found in either the new or reclaimed sand, we strongly recommend
the inclusion of a screen in the intake of the Cooler/Classifier. Over the
years we have found that these screens are invaluable in saving on
maintenance in the form of “clean-out” time.
