Magnetic filter unit SJ series

for abrasive productsself-cleaningautomatic

Product Description:
The SJ energy-saving High Extraction Magnetic Filter (HEMF) is designed for iron removal and purification of fine-grained non-metallic minerals. It is suitable for processing materials such as feldspar, quartz sand, kaolin, nepheline, fluorite, kyanite and sillimanite. When combined with SLon VPHGMS it enables production of high-quality non-metallic concentrates.

Product Features:

• High-concentration energizing coil achieves energy savings of more than 35%;
• High-conductivity magnetic yoke increases magnetic medium separation area by over 30%, improving capacity and efficiency;
• Continuously adjustable magnetic field strength, up to 1.85 T;
• PLC full-automatic control system; magnetic matrix cleaning does not require disassembly;
• Combined high-pressure water and air flushing for discharge and cleaning to prevent matrix blockage;
• Suitable for fine-grained feeds: 40–400 mesh; feed density 10–30%.

Operation and Cleaning Procedure:
The HEMF consists of a high-pressure water flushing system, frame, energy-saving coil, high-conductivity magnetic yoke, high-concentration magnetic matrix, high-pressure air flushing device and dual-circulation heat exchanger. DC current in the coil produces an induced high-gradient magnetic field on the matrix surface. Slurry is fed from the bottom by a frequency-controlled slurry pump into the lower yoke and up through the matrix: magnetic particles adhere to the matrix surface while non-magnetic particles pass through and exit as concentrate. After separation, the slurry in the cavity is returned to the feed tank by valve sequencing. The magnetic particles retained on the matrix are removed by combined high-pressure water and air cleaning. The dual-circulation heat exchanger stabilizes coil temperature during operation.

Technical Parameters:

• Model 500 (SJ-500J / SJ-500CJ): Cavity diameter 500 mm; Feed size 40–400 mesh; Feed density 10–30%; Slurry throughput 10–20 m3/h; Ore throughput 0.9–4.5 t/h; Background field 0–1.6 / 0–1.7 T; Pump power 7.5 kW; Flushing water 20–25 m3/h; Water pressure 0.8 MPa; Max part weight 8 t.
• Model 750 (SJ-750J / SJ-750CJ): Cavity diameter 750 mm; Slurry throughput 15–45 m3/h; Ore throughput 2–10 t/h; Pump power 11 kW; Flushing water 20–30 m3/h; Max part weight 10 t. Background field 0–1.6 / 0–1.7 T; Feed size and density as above.
• Model 1000 (SJ-1000J / SJ-1000CJ): Cavity diameter 1000 mm; Slurry throughput 45–70 m3/h; Ore throughput 3.5–18 t/h; Pump power 15 kW; Flushing water 35–45 m3/h; Max part weight 8 t. Background field 0–1.6 / 0–1.7 T.
• Model 1250 (SJ-1250J / SJ-1250CJ): Cavity diameter 1250 mm; Slurry throughput 50–100 m3/h; Ore throughput 5.5–28 t/h; Pump power 18.5 kW; Flushing water 60–70 m3/h; Max part weight 10 t. Background field 0–1.6 / 0–1.7 T.
• Model 1500 (SJ-1500J / SJ-1500CJ): Cavity diameter 1500 mm; Slurry throughput 75–150 m3/h; Ore throughput 8–42 t/h; Pump power 30 kW; Flushing water 90–110 m3/h; Max part weight 10 t. Background field 0–1.6 / 0–1.7 T.
• Model 2000 (SJ-2000J / SJ-2000CJ): Cavity diameter 2000 mm; Slurry throughput 120–300 m3/h; Ore throughput 14–72 t/h; Pump power 30 kW; Flushing water 90–110 m3/h; Max part weight 15 t. Background field 0–1.6 / 0–1.7 T.
• Model 2500 (SJ-2500J / SJ-2500CJ): Cavity diameter 2500 mm; Slurry throughput 250–500 m3/h; Ore throughput 22–113 t/h; Pump power 55 kW; Flushing water 140–160 m3/h; Max part weight 15 t. Background field 0–1.6 / 0–1.7 T.

Suitable Materials:

• Feldspar
• Quartz sand
• Kaolin
• Nepheline
• Fluorite
• Kyanite
• Sillimanite
• Other fine-grained non-metallic minerals