US 11,590,512 B2 · Magnetic separating apparatus and magnetic sorting method

Abstract

A magnetic separating apparatus and magnetic sorting method can precisely and efficiently separate magnetic and non-magnetic material with a simple structure. The apparatus includes a granular mixture supply portion that supplies a granular mixture so as to naturally fall; a rotating drum having a part of an outer surface located on a falling path of the granular mixture, the rotating drum being rotationally driven in an opposite direction relative to the falling direction of the granular mixture; a first magnet that imparts a magnetic attractive force to a certain area defined by rotation in the opposite direction with a sorting area as a starting point; a naturally falling area to which the granular mixture that has come into contact with the rotating drum naturally falls; and a conveyed falling area to which the granular mixture naturally falls after being magnetically attracted to and conveyed by the rotating drum.

Claims9

Dependent claims

A magnetic separating apparatus that separates and sorts a granular mixture containing a magnetic material and a non-magnetic material into the magnetic material and the non-magnetic material, the magnetic separating apparatus comprising:

a granular mixture supply portion that supplies the granular mixture so as to naturally fall;
a rotating drum having a part of an outer surface located on a falling path that is a path by which the granular mixture naturally falls, the rotating drum being rotationally driven in an opposite direction relative to the falling direction of the granular mixture;
a first magnet supported inside the rotating drum, the first magnet imparting a magnetic attractive force to a certain area defined by rotation in the opposite direction from a starting point at a sorting area that is a location at which the path by which the granular mixture naturally falls meets the outer surface of the rotating drum;
a naturally falling area to which the granular mixture that has come into contact with the rotating drum naturally falls;
a conveyed falling area to which the granular mixture naturally falls after being magnetically attracted to and conveyed by the rotating drum;
and
a guide plate at a position on the falling path, the guide plate facing and being separated from the outer surface of the rotating drum, and following a contour of the rotating drum.

4 more elements

A magnetic sorting method for separating and sorting a granular mixture containing a magnetic material and a non-magnetic material into the magnetic material and the non-magnetic material, the magnetic sorting method comprising steps of:

allowing the granular mixture to naturally fall;
rotationally driving a rotating drum, a part of an outer surface of which is located on a path by which the granular mixture naturally falls, in an opposite direction relative to the falling direction of the granular mixture;
imparting a magnetic attractive force to a certain area defined by rotation in the opposite direction from a starting point at a sorting area that is a location at which the path by which the granular mixture naturally falls meets the outer surface of the rotating drum;
separating and sorting the granular mixture into a naturally falling area to which the granular mixture naturally falls, and a conveyed falling area to which the granular mixture naturally falls after being magnetically attracted to and conveyed by the rotating drum;
and
bouncing back and returning shot media that collide with the outer surface of the rotating drum and bounce away, to the outer surface of the rotating drum, by a guide plate at a position on the path by which the granular mixture naturally falls, the guide plate facing and being separated from the outer surface of the rotating drum, and following a contour of the rotating drum.

3 more elements

Dependencies are inferred from the claim text.

Magnetic separating apparatus and magnetic sorting method

Life of this patent

Magnetic separating apparatus and magnetic sorting method

Life of this patent

Abstract

Claims9