| 摘要 |
PURPOSE: To efficiently separate and sort a mixture composed of non-ferrous metallic articles by passing an object through a rapidly changing, high-density magnetic flux magnetic field which instantaneously induces eddy currents in the objects to induce the repulsive magnetic forces proportional to the kinds of metals. CONSTITUTION: The mixture composed of the objects 20 to be sorted are moved from a hopper 23, etc., through a supply trough 24 atop a conveyor belt 12. The objects pass the high-density, rapidly changing magnetic flux magnetic field 25 positioned above rotor 10 spread like a layer of a specified thickness. This magnetic field is synthesized of a high magnetic field 26 and low magnetic field 27 which are respectively independent and a magnetic field generated by the effect of a dipole 28 above the rotor 10 and extended upward. The objects 20 past the synthesized magnetic field 25 and parted from the belt 12 are moved in trajectories 32 to 34 varying with the sizes and materials of the objects by the free continuous motions of the objects under the influence of the inertia and momentum of the objects, gravity and the magnetic forces induced by the magnetic field. |
