To recover ultra-fine precious metals (like gold, silver, and fine copper) from Incineration Bottom Ash (IBA), the material is often processed using gravity separation equipment like the 6-S Shaking Table. However, if micro-iron dust is not removed beforehand, these dense iron particles will clog the table's rifling, severely reducing precious metal recovery rates.
The Shaking Table Iron Remover is a high-efficiency dry magnetic separation unit purpose-built for this pre-purification stage. It extracts fine ferromagnetic impurities from powdery and fine granular slag (<2mm), ensuring your gravity separation tables operate at peak efficiency to deliver the highest purity non-ferrous concentrates.
Core Working Principle: High-Gradient Magnetic Extraction
Designed specifically for fine powders, this equipment uses a specialized drum-shaped magnetic roller to achieve continuous automatic iron removal.
- Material Feeding: Fine, crushed IBA powder is fed evenly onto the thin conveyor belt.
- Magnetic Adsorption: As the material reaches the head pulley (the drum-shaped magnetic roller), a high-intensity, high-gradient magnetic field instantly pulls the ferromagnetic dust against the belt.
- Trajectory Separation: Non-magnetic materials (fine slag, glass, copper, precious metals) follow their natural trajectory and fall forward off the belt into the "clean" chute.
- Automatic Discharge: The iron dust remains pinned to the belt as it curves underneath the roller. Once the belt moves past the magnetic field zone, the iron drops off automatically into a separate collection chute.
Core Advantages for WtE Slag Processing
| Advantages |
Specific Benefits for IBA Sorting |
| ✅ Optimized for Fine Powders |
Specifically engineered to capture micro-iron dust (<2mm) that standard Overband Magnets miss, guaranteeing the purity of the feed going to the shaking tables. |
| ✅ Waist-Drum Structure |
The magnetic roller features a unique "waist-drum" shape. This provides a natural, automatic belt deflection correction, preventing the thin belt from wandering off-center during continuous operation. |
| ✅ Ultra-Stable Magnetic Circuit |
Utilizes a tightly packed NdFeB permanent magnetic array. It delivers a high magnetic field strength with a reasonable gradient distribution, backed by a 10-year guarantee against demagnetization. |
| ✅ Compact & Automated |
Features a very small footprint, making it easy to install directly above the shaking table feed hopper. It operates 100% automatically without manual intervention. |
Key Application Scenarios in Resource Recovery
- ◾ Shaking Table Pre-Purification: The primary application. Installed immediately before gravity separators to remove fine iron dust that would otherwise ruin precious metal recovery rates.
- ◾ Non-Ferrous Metal Scrap: Purifying fine shredded aluminum and copper granules (e.g., from wire chopping lines) by extracting microscopic steel wear particles.
- ◾ E-Waste Recycling: Extracting magnetic components from finely crushed printed circuit boards (PCBs) and electronic scrap before downstream electrostatic separation.
Frequently Asked Questions (FAQ)
Q: Can this machine handle wet sludge?
A: No. This specific Iron Remover uses a dry belt system and is designed for dry or semi-dry fine powders. If you need to remove fine iron from a wet slurry before a shaking table, you must use our Wet Magnetic Separator instead.
Q: Will this remove stainless steel dust?
A: This machine utilizes high-intensity magnets that can capture standard ferromagnetic particles and some weakly magnetic (work-hardened) stainless steel grades. However, non-magnetic stainless steel dust will pass through and be successfully recovered by the downstream 6-S Shaking Table based on its high density.
