SU1706705A1 - Magnetic pulley - Google Patents

Abstract

This invention relates to the separation of materials according to magnetic properties. The goal is to increase the efficiency of the separation process by providing retention over the entire length of the pulley while reducing scatter fields. The pulley has a ferromagnetic axis 1 in the form of a regular polyhedron with an even number of faces. On the facets with alternating polarity along the axis of the pulley and around its circumference, the magnets (M) 2 are fixed in the form of plates and magnetized about the radial direction. On M 2 mounted pole pieces (PN) 3 in the form of plessgin. Each PN 3 is adjoined by magnetically hard inserts, Some B are magnetized along the axis of the pulley, and its other circles. The corners PN 3 abut B 5. They have the opposite magnetization of the ends. All B is adjacent to PN 3 with poles of the same name. As a result, magnetic poles are arranged on the pulley surface in a checkerboard pattern. The location of the M 2, PN 3 vi B concentrates the field on the surface of the PN 3 and reduces the field of scattering. The pulley serves as a slave belt conveyor pulley. On the conveyor serves the cleaned material. The non-magnetic fraction falls off the conveyor. Magnetic inclusions are attracted to the surface of the belt and cleared under the pulley. When the Lengi are separated from the pulley, magnetic inclusions fall into the receiver. 3 il.

Description

figure 1

Editor M.Blanar

77 Fig.Z

Compiled by A. Moiseenko Tehred M. Morgenthal

Proofreader M.Maksimishinets

Claims (1)

Claim A magnetic pulley, including a ferromagnetic axis with permanent magnets fixed on it with pole tips, characterized in that, in order to increase the efficiency of the separation process by providing holding power along the entire length of the pulley while reducing the scattering fields, the pulley is equipped with inserts of hard magnetic material, ferromagnetic the axis is made in the form of a polyhedron with an even number of faces, the magnets are made in the form of plates magnetized in the radial direction and mounted on faces with alternating em polarity along the pulley axis and around its circumference, and the pole pieces are made in the form of plates mounted on the magnets, wherein each pole piece adjacent the insert of magnetic material, some of which are magnetized along the axis of the pulley ', others - transversely to this axis. and the third are made with opposite axial magnetization at their ends, with all the inserts facing the pole tips with the same poles.