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for
industrial processing
of dry granular materials and powders |
with Wet-Type Grids
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General application: Series F1 units for dry processing are designed for separating fine ferromagnetic particles present as 1% (weight) or less of the material to be processed. Separators with wet-type grids are three to five times more effective than those equipped with vane-type grids for processing appropriate materials. |
| Maximum product temperature: All listed Series F1 models: 150°F (66°C); special Series F1 models with thermal insulation for higher product temperatures are available. |
| Field
intensity, field gradient and energy gradient: The F1
Series is designed for maximum economy consistent with effective
separation of fine ferromagnetic particles.Background
magnetizing fields measured in the empty separating chamber (with
pole pieces but without the matrix in place) are over 700 Oersteds
in water-cooled models and over 500 Oe in air-cooled models. With
the matrix in place the background field increases substantially.
The background field induces a field several times more intense
in the collecting elements. A high field gradient is provided at
the collecting edges; the dimensions and orientation of the elements
are essential to these high gradients. |
| Materials of construction: Metallic product-contact parts of standard units are cast gray iron, steel, galvanized steel and stainless steel, types 303, 304 and 430. Special units can be supplied with all metallic product contact parts made of stainless steel. | ||
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Matrices: Grids are fabricated by winding in spiral form two ribbons of type 430 stainless steel, one crimped to provide uniform openings and one flat. Nickel brazing provides rigidity. The matrix supplied for a particular application is composed of grids selected for ribbon dimensions and size of openings suitable for the material to be processed. Elastomer cushions are provided to prevent abrasion of metal parts. |
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 Vibration:
Models with wet-type grids have eccentric weight vibrators attached
to their casings in a different way than models with vane-type grids.
This mounting enhances material flow through the grid stack. Vibration
can be adjusted for the specific material to be processed. Standard
models have a cast iron hopper at the top and a hub at the bottom for
attachment of a discharge sock. Installation in this manner permits
the separator to vibrate freely in a system closed at the bottom. The
hopper at the top may be replaced with a hub for connection of a feed
sock for a completely enclosed system Suspended models: The separator hangs on four aluminum rods with elastomer bushed connections at both ends to permit motion under vibration. |
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