Permanent magnet three-side extrusion magnetic system and dry-type high-intensity magnetic separator

The invention relates to the technical field of magnetic separators, in particular to a permanent magnet three-side extrusion magnetic system and a dry-type high-intensity magnetic separator. The permanent magnet three-side extrusion magnetic system comprises a main magnetic pole, a leakage stopping magnetic pole and a magnetic conducting plate; the main magnetic poles and the magnetic conductive plates are alternately arranged, and the leaking stoppage magnetic poles are arranged between the adjacent main magnetic poles and located at one ends of the magnetic conductive plates; the main magnetic poles located on the two sides of the same concentrating flux plate and the face magnetism, facing the concentrating flux plate, of the leaking stoppage magnetic pole at the end of the concentrating flux plate are the same. According to the permanent magnet three-face extrusion magnetic system, inward-diverging magnetic lines are extruded to the outer surface of the magnetic system through the leaking stoppage magnet