Solids separator LJWH

superconducting magneticfor orewet

Product overview
Superconducting magnetic separation applies superconducting technology to magnetic separation to deliver very high magnetic fields for impurity removal and purification of non-metallic minerals such as kaolin, bauxite, red mud and lepidolite. The LJWH Series is designed for industrial mineral processing where recovery of fine weakly magnetic particles is required.

Equipment principle
Nb-Ti alloy superconducting wires and other superconducting materials are wound into specialized coils and housed in a sealed low-temperature Dewar. Cooling is achieved by liquid helium immersion or conduction cooling to maintain the superconducting coil at approximately -268.8°C. In the superconducting state the coil exhibits zero electrical resistance and can carry large currents without heat generation, producing a stable background magnetic field (>2 T) and peak separation fields that can exceed 5 T. A GM refrigerator (rated 7.5 kW) maintains the low-temperature condition and reduces energy consumption compared with conventional resistive magnets.

Technical features

• Magnetic field intensity: Peak separation field can exceed 5 T, 3–5× conventional separators.
• Operating cost: Excitation power <15 kW/h; energy savings >90% versus resistive magnets.
• High degree of automation: PLC-based automatic control and equipment condition monitoring for reliable unattended operation.
• High separation precision: Effective recovery of fine weakly magnetic particles <30 µm, improving concentrate grade and reducing reagent usage and tailings.
• Low maintenance cost: Helium refrigerant maintenance cycle ~10,000 hours; helium compressors and water-cooling units service cycle ~25,000 hours.

Applications
Designed for impurity removal and purification of non-metallic minerals including kaolin, bauxite, red mud, lepidolite and similar feeds where recovery of fine weakly magnetic particles is critical.

Technical specifications

• Brand: LONGi
• Product origin: China
• Delivery time: 40 days
• Supply capacity: 200 sets
• Model / Series: LJWH Series
• Superconducting wire: Nb-Ti alloy and other superconducting materials
• Cooling method: Liquid helium immersion cooling or conduction cooling
• Operating temperature (coil): approximately -268.8°C
• Background magnetic field (operational): >2 T; peak field: >5 T
• GM refrigerator rated power: 7.5 kW
• Excitation power consumption: <15 kW/h
• Separation particle size capability: captures particles <30 µm
• Helium refrigerant maintenance cycle: 10,000 hours
• Helium compressors and water-cooling units maintenance cycle: 25,000 hours
• Automation: PLC automatic control and equipment condition monitoring