Dry Powder Electromagnetic Separator

       When the device’s excitation coil is energized, a high-intensity, high-gradient magnetic field is generated within the separation chamber. Under the action of gravity or negative-pressure conveying, dry powder material passes through the magnetic field region, where ferromagnetic contaminants (such as iron filings, rust particles, and fine iron dust) are strongly adsorbed and retained by the high-gradient magnetic medium; meanwhile, the clean, non-magnetic material flows smoothly through the chamber and proceeds to the next process. Equipped with a PLC-based intelligent control system, the device can automatically or on a timed basis switch the magnetic field state (or work in conjunction with a vibration mechanism), causing the adsorbed iron impurities to detach and be discharged, thereby achieving continuous, automated purification of the material.
 

Features and Advantages

• Ultra‑strong ferrous contaminant removal precision: The working chamber’s magnetic field strength can reach up to 20,000 gauss, capable of capturing even PPM‑level or PPB‑level fine ferromagnetic impurities.
• Automated, intelligent operation: Equipped with a PLC smart control cabinet, the device performs fully automatic excitation, feeding, and iron discharge.
• High‑efficiency cooling system: Utilizes forced oil‑circulation water cooling or air‑cooled heat dissipation, ensuring stable magnetic field performance under prolonged, heavy‑load operation.
• Sealed, dust‑proof design: The entire unit adopts a fully sealed structure, and the material passage can be fitted with a vacuum feeding system to operate under negative pressure, effectively preventing dust leakage.
• Compact, robust construction: The material‑contacting parts are typically made of 304/316L stainless steel, offering wear resistance and corrosion protection; the equipment features a high degree of integration.

Optional Configurations

• Cooling methods available: Forced oil‑circulation water cooling, air cooling, and internal circulation dry water cooling.
• Feeding systems optional: Vibratory feeder, vacuum loader, rotary valve, or direct flanged pipeline connection.
• Control systems optional: Standard PLC touch‑screen control, supporting remote diagnostics and data interfacing.
• Material options available: In accordance with food and pharmaceutical industry requirements, fully food‑grade stainless steel and mirror‑polished finishes can be provided.
• Three types of excitation media—mesh, rod, and spherical—are available.

Applications

• New energy lithium‑battery industry: Installed at the front end of conveyor lines and batching systems, performing iron removal and purification during mixing and pulverization to ensure battery material purity.
• Photovoltaic and semiconductor industries: Mounted on pneumatic conveying pipelines, providing deep iron removal prior to grinding and classification to safeguard product light transmittance and electrical performance.
• Chemical and ceramic industries: Positioned at hopper outlets and along conveyor lines, removing iron before grinding and packaging to enhance ceramic whiteness and prevent catalyst poisoning.
• Food and pharmaceutical industries: Installed at feed inlets and along conveying lines, conducting iron removal during crushing and sieving to ensure products meet food safety standards.
• Non‑metallic mineral processing: Deployed on conveyor lines to remove iron before grinding and packaging, elevating the grade and market value of mineral powders.

Materials Processed

• Battery materials: Lithium iron phosphate, lithium cobalt oxide, lithium manganese oxide, graphite powder, solid electrolytes.
• Chemical powders: Resin powder, rubber powder, pigments, dyes, flame retardants, and additives.
• Mineral powders: Quartz powder, feldspar powder, talc powder, calcium carbonate, kaolin, wollastonite powder.
• Other powders: Metal powders (aluminum powder, copper powder), ceramic powder, glass powder, pharmaceutical powders, wheat flour, and more.