Hot magnetic separator including heat shield

摘要

An apparatus for separating hot particles including a plurality of materials having different magnetic properties includes a plurality of permanent magnets arranged in a magnet assembly and configured to create a magnetic flux capable of providing a coercive force on at least a portion of the particles, a moving surface proximate the magnet assembly for carrying the particles in a downward path through the magnetic flux while the coercive force attracts the portion of the hot particles toward the moving surface, a feed system for supplying the particles onto the moving surface, and a cooling system for maintaining the temperature of the magnets substantially below their Curie point, the cooling system comprising a pair of plates which are disposed between the magnet assembly and the moving surface, the cooling system configured to operate by passing a contained cooling fluid through a gap between the pair of plates.

主权项

1. An apparatus for separating hot particles including a plurality of materials having different magnetic properties, the apparatus comprising:
a plurality of permanent magnets arranged in a magnet assembly and configured to create a magnetic flux capable of providing a coercive force on at least a portion of said particles; a moving surface proximate said magnet assembly for carrying said particles in a downward path through said magnetic flux while said coercive force attracts said portion of said hot particles toward said moving surface; a feed system for supplying said particles onto said moving surface; and a cooling system for maintaining the temperature of said magnets substantially below their Curie point, said cooling system comprising a pair of plates which are disposed between said magnet assembly and said moving surface, said cooling system configured to operate by passing a contained cooling fluid through a gap between said pair of plates, wherein at least one barrier is provided within the gap to lengthen a coolant flow path defined within the gap.