Electromagnetic Wet Filter

Electromagnetic Wet Filters for Fine Contaminant Removal

Bunting electromagnetic wet filters remove fine iron and weakly magnetic minerals from ceramic slips, glazes, and industrial mineral slurries. The adjustable field and automated cleaning cycle support consistent purification in wet processing applications.

Key Features

• Generates background magnetic fields up to 10,000 gauss, amplified 3 to 4 times on the matrix for effective separation
• Captures fine magnetic particles measuring 500 microns or smaller
• Uses automated backflush cleaning for continuous processing

How the Electromagnetic Wet Filter Works

• An electromagnetic coil induces a concentrated magnetic field in the matrix.
• Slurry passes through the matrix, where fine iron and paramagnetic particles are captured.
• A programmed cleaning cycle flushes captured particles from the matrix.
• Two filters can be installed in parallel to support continuous operation.

Key Benefits

• Removes fine iron and weakly magnetic mineral contamination
• Improves the purity of ceramic materials and industrial minerals
• Provides adjustable field strength for different materials
• Reduces manual cleaning with programmable controls

Common Applications

• Cleaning ceramic glazes and slips
• Purifying silica sand, feldspar, and kaolin slurries
• Removing contaminants from ball clay, calcium carbonate, and talc

Contact Bunting to test your material and determine the right electromagnetic wet filter configuration for your process.

High Magnetic Field Strength: Offers a range of background magnetic field strengths from 3,500 to 10,000 gauss for effective separation of fine iron and paramagnetic minerals from liquids and slurries.

Applications: Used to remove fine iron and paramagnetic minerals from non-metallic mineral slurries.

Efficient Separation: Higher separation efficiency than permanent magnetic separators by generating significant background magnetic field strength, and a high-magnetic field gradient on the matrix surface.

Back Flush Cleaning: Automated back flush cleaning cycle to clean captured contaminants off the matrix. Cycle times can be adjusted via the HMI to suit application needs.

Energy Efficiency: Utilizes highly efficient computer-designed coils paired with a water over oil heat exchange to maintain optimal operating temperature.

Easy Maintenance: Includes a removable job crane for easy removal of the top pole and matrix assembly for maintenance and cleanings. This minimizes downtime and needs for additional infrastructure.

Controlled Operation: Can be fully automated using a control system with a Siemens S7-1200 PLC and HMI for managing cleaning frequency and parameters.

Valve Configurations: Available in 4-valve to 8-valve configurations to suit different applications.

Testing Facilities: Bunting offers controlled tests on laboratory-sized filters to confirm separation capabilities.

Magnet Type
Electromagnet

Magnetic Strength
Up to 10,000 Gauss background field (3-4 times higher on matrix surface)

Materials Handled
Slurries and liquids

Separation Targets
Fine iron particles, paramagnetic minerals, magnetic contaminants

Industries
Ceramics, battery manufacturing, recycling, mineral processing

Construction
Coil: Circular or rectangular steel casing
Wetted surfaces: 300-series stainless steel
Matrix: 400-series (magnetic) stainless steel

Matrix Design
Expanded metal mesh discs, sized to suit application

Control System
Siemens S7-1200 PLC with HMI (other options available)

Cleaning Mechanism
Manual or fully automated with programmable cleaning cycles

Optional Features
Adjustable magnetic field strength
Custom inlet/outlet configurations
Built-in jib for easy matrix removal and maintenance

Performance
Capable of removing very weakly magnetic particles untouched by other magnetic separation technologies

Customization
Available in various sizes and configurations to suit specific application requirements

*All capacities are dependent on the solid content

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