Equipment Features:
1. Adopts an excitation method with low voltage, high current, and low current density, combined with a water-internal cooling and dual-cycle cooling system, enabling rapid coil cooling and a stable magnetic field, with an equipment availability rate of over 98%;
2. Optimized magnetic system design with the optimal arrangement and combination of magnetic media, achieving a field intensity of up to 1.8T, providing a sustained high-gradient magnetic field for mineral separation with high ore separation efficiency;
3. The ring rotates vertically with reverse flushing of concentrates, allowing coarse ore particles to be flushed out without passing through the magnetic media stack, preventing media clogging;
4. Features a pulsating slurry design, where mineral particles are fully loosened and stratified under the combined force fields of fluid dynamics, pulsation, and gravity, enabling effective separation;
5. Wide particle size range for ore separation, with an upper limit of up to 6mm and a lower limit as low as 2 to 10 μm;
6. Offers 17 series with over 70 specifications and models, with single-unit processing capacities for metallic ores ranging from 0.01 to 950 t/h;
7. Equipped with a coil pipeline cleaning system for convenient routine maintenance, with a designed coil service life of over 10 years;
Application Scope:
Beneficiation of weakly magnetic minerals such as hematite, limonite, siderite, ilmenite, chromite, manganese ore, wolframite, rare earth ore, and tantalum-niobium ore; re-separation and recovery of secondary resources including red mud, smelting steel slag, gas ash, fly ash, and furnace slag.
Equipment Structure and Working Principle
The structure of the SLon Vertical Ring Pulsating High Gradient Magnetic Separator is shown in the figure below. It mainly consists of a pulsating mechanism, excitation coil, iron yoke, rotating ring, and various ore and water hoppers, using magnetic stainless steel mesh or round bars as magnetic media. The working principle of the machine is as follows:
Direct current is passed through the excitation coil, generating an induced magnetic field in the separation zone, where a non-uniform magnetic field, i.e., a high-gradient magnetic field, is produced on the surface of the magnetic media in the separation zone; the ring rotates clockwise, continuously feeding magnetic media into and out of the separation zone; the slurry is fed from the feed hopper and flows through the ring along the gap in the upper iron yoke. Magnetic particles in the slurry are adsorbed onto the surface of the magnetic media and carried by the ring to the top non-magnetic field zone, where they are flushed into the magnetic product hopper by rinse water, while non-magnetic particles pass through the magnetic media stack under the action of gravity and pulsating fluid forces, are separated from the magnetic particles, and flow along the gap in the lower iron yoke into the non-magnetic product hopper for discharge.
