Abstract Magnetic separator in which the particles forming the mixture to be separated drop from an opening into a separating space, where they are exposed to the action of a magnetic field having a gradient in the horizontal plane and produced outside the separating space. The magnetic field is of the multipole type having a high dipole component in a direction in a horizontal plane in the separating space, in order to apply a high magnetic force to the magnetized particle, in order to increase the separation as a function of their magnetic susceptibility. The magnetic separator according to the invention can more particularly be used for the separation or cleaning of particles having different magnetic properties.
A magnetic separator for separating magnetic particles from non-magnetic particles comprising a vertically oriented separation chamber; an inlet for particles to be separated at the top of the chamber, means for collecting magnetic particles and non-magnetic particles at the bottom of the chamber; multiple magnetic field producing means for producing, in the separation chamber, a magnetic field comprising a quadrupole magnetic field configuration superimposed on a dipole magnetic field configuration thereby defining a magnetic field gradient in the horizontal plane.
Claim 2
Dependent Claim
80 words
A magnetic separator for separating magnetic particles from non-magnetic particles comprising a vertically oriented separation chamber; an inlet for particles to be separated at the top of the chamber, means for collecting magnetic particles and non-magnetic particles at the bottom of the chamber; multiple magnetic field producing means for producing, in the separation chamber, a magnetic field comprising a quadrupole magnetic field configuration superimposed on a dipole magnetic field configuration thereby defining a magnetic field gradient in the horizontal plane.
Claim 3
Dependent Claim
21 words
A magnetic separator according to claim 1 wherein the magnetic field producing means is quadrupole winding surrounded by a dipole winding.
Claim 4
Dependent Claim
19 words
A magnetic separator according to claim 2, wherein said quadrupole winding and said dipole winding both comprise superconductor windings.
Claim 5
Dependent Claim
20 words
A magnetic separator according to claim 1 wherein the separating chamber for the magnetic particles defines a dry route separator.
Claim 6
Dependent Claim
20 words
A magnetic separator according to claim 1 wherein the separating chamber for the magnetic particles defines a wet route separator.