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Product Overview
Dry Multi-Roller High Strength Permanent Magnet Machine is a kind of high-efficiency dry magnetic separation equipment, which adopts multi-stage permanent magnet rolls in series design, the magnetic field strength can reach 0.08-1.6T, and it is specially used for the separation and purification of multi-magnetic minerals. Through the configuration of multi-roll gradient magnetic field, this equipment realizes high efficient separation of iron ore, ilmenite, hematite, manganese ore, chromite, monazite and other minerals, with the processing size ranging from 0.1-5mm, and it is the core dry magnetic separating equipment for the modern mine selecting operation.
Core structure
Magnetic system
Magnetic roller configuration: 2-5 rollers in series, magnetic field strength gradient increment;
Permanent magnetic material: neodymium iron boron (NdFeB) permanent magnet, Hcj≥1114kA/m;
Surface magnetic strength:
First-class roll: 0.08-0.12T
Secondary roller: 0.5-0.9T
Three-level roll: 1.2-1.4T
The number of rolls and magnetic field strength can be customized, if you are not clear, you can contact us, our professional engineers to give you the selection configuration and quotation.
Sorting System
| Components | Technical Characteristics | 
|---|---|
| Feeding device | Vibrating feeder + electromagnetic iron removal, to ensure uniform feeding of ore | 
| Sorting roller | Stainless steel coated, surface hardness HRC≥55 | 
| Product Separation | Adjustable diverting device, precision ±2mm | 
| Dedusting system | Pulse bag de-dusting, de-dusting efficiency ≥99%. | 
Working Principle
Pre-treatment: Raw materials are pre-treated by vibrating feeder and electromagnetic iron remover;
Multi-stage sorting:
First-stage roll: separating strong magnetic minerals
Secondary roller: separation of medium magnetic minerals
Three-stage roll: select weak magnetic minerals
Product collection:
Magnetic product: each roll collects separately
Non-magnetic products: tailings belt transportation
Operation specification
Start-up flow
Start the dust removal system;
Run no-load for 5 minutes to check;
Gradually increase the feeding volume to the rated value;
Fine-tuning the manifold according to the product index.
Safety Precautions
Iron tools should not be stored within 1m around the magnetic roller;
After stopping the machine, it is necessary to wait for the roller to be completely static before maintenance;
Regularly check the integrity of the protective cover.
Dry Multi-Roller High Intensity Permanent Magnetic Separator provides a reliable solution for the efficient recovery of multi-magnetic minerals through its innovative multi-stage sorting design. The equipment can flexibly adjust the configuration of roll number and magnetic field strength according to the difference of mineral magnetism, which is the key technical equipment for realizing the high value utilization of mineral resources.






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