General Introduction
Vertical Ring High Gradient Magnetic Separator (HGMS) and Wet High Intensity Magnetic Separator (WHIMS) refer to the same equipment. It is specially designed for weak magnetic ore beneficiation or non-magnetic ore purification. A well-distributed background field is produced in the processing area with no magnetic field omission, making it ideal for beneficiation of fine red ore with particle size -1.3mm (-200mesh takes 30%-100%) (Hematite, Limonite, Siderite), Manganese ore, Ilmenite, Wolframite, etc., or purification of non-ferrite ores such as Quartz, Feldspar, Nepheline, and Kaolin.
The oil and water cooling HGMS/WHIMS combines magnetic force, pulsating slurry, and gravity discharge to separate magnetic and non-magnetic minerals continuously. It offers advantages including large processing capacity, high beneficiation efficiency and recovery rate, minimal thermal attenuation of the magnetic field, thorough discharge, and high intelligence. With optional Online Cloud Platform Technology, it can achieve intelligent automatic operation. Compared with traditional HGMS, Sortek WHIMS incorporates new technologies and processes that enhance operation efficiency, separation accuracy, and tailing discard rate while reducing maintenance and operating costs.
Working Principle
Matrix boxes are arranged along the rotating ring. During operation, the ring rotates clockwise. Feed slurry from the feeding box flows into the magnetic field and matrix boxes through gaps in the upper pole yoke. The matrix in the working zone is induced and magnetized, attracting magnetic particles from the slurry onto its surface. These particles are then carried to the top of the machine where the magnetic field is negligible, flushed off the ring, and collected in the concentrate box.
Non-magnetic particles pass through the matrix and enter the tailing box through gaps in the lower yoke under the combined action of slurry pulsation, gravity, and hydrodynamic drag. The pulsating mechanism drives the rubber drum head on the tailing box, making it move back and forth, with the slurry level maintained above the fixed level in the slurry level box.
The flush direction for magnetic fractions is opposite to the feed direction relative to each matrix stack, allowing coarse particles to be flushed out without passing through the entire matrix depth. Slurry pulsation keeps particles within the matrix in a loose suspended state. Reverse flushing and slurry pulsation prevent matrix clogging and improve concentrate grade.
These factors ensure effective recovery of weakly magnetic particles as small as 0.01 mm and extend the feed material size range up to 1.2 mm, increasing the upper limit of treatable particle size.
Oil and Water Cooling Coil Illustration
Technical Advantages
Advanced Magnetic Circuit Design: Computer-simulated magnetic field calculations create a highly efficient magnetic circuit with minimal magnetic energy loss, allowing magnetic field strength up to 1.7T.
Innovative Coil Winding Structure: The excitation coil features a layered stereo winding design, enabling evaporative cooling medium to fully interact with all coil parts, significantly enhancing heat-dissipation capacity and ensuring reliable operation.
Efficient Thermodynamic Cooling: Coil cooling based on thermodynamic phase-transition principle offers high efficiency, maintaining working temperature below 48°C with uniform distribution and no local hot spots.
Fully Adaptive Cooling System: Automatic circulation provides excellent adaptation and self-regulation, with minimal magnetic field difference between cold and hot states, and coil temperature unaffected by external environment.
Extended Coil Lifespan: Low temperature rise operation significantly slows coil aging, prolonging magnetic separator service life and ensuring safe, reliable operation.
Sealed Coil for Harsh Environments: Fully sealed coil adapts to various harsh working conditions.
High Separation Efficiency: Excellent efficiency and broad adaptability to fluctuations in feed particle size, concentration, and grade.
Excellent Beneficiation Results: High rich ore ratio and high recovery rate.
Working Site Presentation
