Abstract:
Technology is described for an electromagnetic apparatus and system that sorts different electrically conductive metals. In one example, an electrodynamic sorting circuit includes a wire-wound, gapped, core (WWGC) and a capacitor bank. The WWGC includes a magnetic core including a gap, and an electrical conductor coiled around the magnetic core. A current in the electrical conductor is configured to generate a magnetic field in the magnetic core and the gap. The capacitor bank is coupled in series with the electrical conductor of the WWGC. Various other circuitries, systems, devices, components, and methods are also disclosed.
Abstract:
An apparatus for separating hot particles including a plurality of materials having different magnetic properties includes a plurality of permanent magnets arranged in a magnet assembly (22) and configured to create a magnetic flux capable of providing a coercive force on at least a portion of the particles, the magnet assembly (22) being mounted on a stationary shaft (23), a moving surface (11) proximate the magnet assembly (22) for carrying the particles in a downward path through the magnetic flux while the coercive force attracts the portion of the hot particles toward the moving surface (11), the moving surface (11) being mounted on a drive shaft (50) supported by a bearing (18, 19), and an inert gas supply system which supplies inert gas into a gap between the stationary shaft and the drive shaft (50) for cooling the drive shaft (50) and the bearings (18, 19), and into the magnet assembly (22) for purging the magnet assembly (22) of oxygen.
Abstract:
Ce séparateur par courant de Foucault comprend : une bande sans fin (2) prévue pour transporter le mélange jusqu'à une section de tri (22), des tambours rotatifs (3, 4) sur lesquels roule la bande sans fin (2), un rotor magnétique multipolaire (7) entraîné en rotation de manière à générer un champ magnétique alternatif d'induction. La section de tri (22) est décalée par rapport à chaque tambour rotatif (3, 4), le long du cheminement de la bande sans fin (2). Le rotor magnétique (7) est disposé à l'extérieur de chaque tambour rotatif (3, 4). Le cheminement de la bande sans fin (2) comprend une zone de déversement (24) qui suit la section de tri (22).
Abstract:
Eddy current separation apparatus (1) for separating particles (20) from a particle stream (w), wherein the apparatus (1) comprises a separator drum (4) adapted to create a first particle fraction (21) and a second particle fraction (23), a feeding device (2) upstream of the separator drum (4) for supplying particles (20) to said separator drum (4), and a splitter element (14) provided downstream of the separator drum (4) for splitting the respective fractions (21,23), wherein the apparatus (1) further comprises a sensor device (11,111,211) arranged for detecting particles (20), at least a number and/or material properties thereof, from at least part of one of the particle fractions (21), wherein the separation apparatus (1) is configured to adjust, in use, a position and/or orientation of the splitter element (14) with respect to the separator drum (4) and/or a transporting velocity of the feeding device (2) in dependence of a signal from the sensor device (11,111,211) based on the number and/or material properties of the detected particles (20).
Abstract:
Multistep recycling processes for preparing recycled plastic materials. The processes feature a sequence of operations selected from the group consisting of preprocessing operations, size reduction operations, gravity concentration operations, color sorting, sorting by thickness, friction, or differential terminal velocity or drag in air, surface to mass control operations, separation processes enhanced by narrow surface to mass distributions, blending operations, and extrusion and compounding operations. Plastic-rich mixtures are subjected to the process, and one or more recycled plastic materials are collected as outputs of the sequence of processes.
Abstract:
A method and apparatus for magnetic separation are presented for separating a first component having predetermined magnetic properties from a mixture containing the first component and at least a second component having relatively weak magnetic properties as compared to those of the first component. A magnetic field source is aligned along the circumference of a drum, which is rotated in a certain direction with a predetermined speed. The magnetic field source creates a magnetic field region in the vicinity of the drum. The mixture is fed into a separation channel, which is stationary mounted in the vicinity of the drum and extends along a circumferential portion of the drum. The rotation of the drum causes the movement of the first component along the separation channel in a direction opposite to the direction of the rotation of the drum. The first and second components are discharged through opposite ends of the separation channel.
Abstract:
An eddy current separator (10, 10a, 10b, 10c, 10d, 10e, 10f, 10g) and a separation method for separating non-ferromagnetic particles (14) by engaging the particles to force the particles into a primary magnetic field (34) to increase the induced eddy current flow that generates particle magnetic fields such that subsequent release of the particles allows increased magnetic field propulsion to propel the particles distances that vary according to their electrical resistance, densities, shapes and sizes. Different embodiments move the particles into the primary magnetic field by an inclined engagement member (42) that may be a flexible member (42') or a brush (42''), a vertically movable roll (54a), a rotary brush (54b), an upper auxiliary conveyor (64), an upper belt reach (26) of a belt conveyor (16), a vibratory member (26') of a vibratory conveyor (16'), and an inclined gravity slide (70) that may be a curved trough (72).
Abstract:
Apparatus for separating particles such as minerals from a mixture including said particles. The apparatus includes means for generating a rotating magnetic field such as a rotating magnetic drum (71). The apparatus also includes means for exposing the mixture to the rotating magnetic field such that susceptible particles are caused to rotate, and means for exploiting the rotation imparted to the susceptible particles to separate the particles from the mixture. The means for exposing may include a conveyor belt (72) or the like for passing the mixture along a first path (70) relative to the rotating magnetic field. The means for exploiting may include a surface (74) for facilitating movement of the particles along a second path (A) other than the first path.
Abstract:
A system for separating non-magnetisable metals from a mixture of solids comprises: a feed device; an endless conveyer belt with belt drums supported on a frame, of which the head drum at the discharge end is provided with a driven, eccentrically mounted and adjustable magnet rotor; and a separation area downstream of the head drum. To improve the degree of separation achieved, the system is provided with a vibrating channel (2) with an additional slope; means for adjusting the speed of the conveyer belt (3); means for generating a variable force of repulsion (Fvar); a controlled rotational speed adjustment unit (nvar) for the magnet rotor (3.4); and adjustable separating elements (4.1, 4.2, 4.3), each of which is located between two adjacent throwing parabolas of the separated fractions.