Wet Magnetic Separator

Countercurrent Wet Magnetic Separator

Overview of Countercurrent Wet Magnetic Separator

Countercurrent Wet Magnetic Separator is a strong magnetic sorting equipment designed for the efficient recovery of ferromagnetic materials (Fe₃O₄, Fe₂O₃, iron filings, etc.) from waste incineration bottom ash, slag, and abrasive tailings, etc. It is cleverly installed under the conveyor and utilizes its powerful magnetic separation field to separate the magnetic particles from the non magnetic particles (such as slag , glass, aluminum, copper, etc.) in the mixed materials. It is cleverly installed under the conveyor, using its powerful magnetic field to completely separate the magnetic particles and non-magnetic particles (such as slag, glass, aluminum, copper, etc.) in the mixture, realizing the high-purity recovery of magnetic materials and the deep purification of non-magnetic materials, and it is the core equipment in the resource recovery industry.

Core advantages

1. Extraordinary processing capacity

• Open magnetic system design: the use of a unique wrapped open magnetic system, the material through the smooth, effective avoidance of wet viscous materials commonly wrapped, blocking phenomenon, to ensure the continuous and stable operation of the equipment.

• Large single machine capacity: The single machine can process more than 120 tons of raw ore per hour, with outstanding performance.

• Flexible Expansion: Supporting the parallel use of multiple machines, it can easily double the output to meet the needs of large-scale production.

2. Excellent sorting effect

• High recovery rate and high grade: The countercurrent tank design ensures that the magnetic material passes through the longest sorting path and is fully captured, resulting in a very high recovery rate.

• Self-cleaning drum: In the process of sorting, the material slides, displaces and rolls on the drum surface, which has self-cleaning effect, and the drum does not stick to the material, avoiding the impurities from being brought out, so that the grade of one time sorting can reach more than 60%, and the grade of primary sorting can be increased by 1-4 times.

• Deep purification: it can effectively reduce the iron residue in the non-magnetic products and greatly enhance their added value (e.g. purity as building materials aggregate).

3. High operational flexibility and adaptability

• Multi-purpose: By adjusting the magnetic system parameters and working gap, it can be adapted to a variety of different particle sizes and concentration of material sorting needs.

• A variety of tanks can be selected: according to the characteristics of materials and sorting objectives, we can provide a variety of tanks such as downstream, semi-countercurrent, countercurrent, etc., with a wide range of applications.

• Simple and reliable structure: the equipment has a simple structure, smooth operation, convenient operation and small daily maintenance workload.

Working Principle

The slurry enters the sorting tank evenly from the feed box. The non-magnetic particles are almost unaffected by the magnetic field and are discharged with the slurry flow directly from the tailings outlet at the bottom of the tank. The magnetic particles are adsorbed on the surface of the rotating drum under the action of strong magnetic field. As the drum rotates in the opposite direction to the slurry flow (countercurrent), the magnetic particles, in the process of being taken out of the liquid surface, go through a long rinsing and dewatering zone, and are repeatedly flushed by the reverse-moving slurry flow, thus separating the mechanically entrapped non-magnetic impurities. Eventually, the concentrate (magnetic material) is brought to the weakest point of the magnetic field and falls into the concentrate hopper for discharge, realizing high purity recovery.

Technical Characteristics

• Type of magnetic system: High performance NdFeB permanent magnetic system, high and stable magnetic field strength.

• Tank type: countercurrent (standard), optional downstream, semi-countercurrent.

• Processing capacity: up to >120 t/h (depending on the material and concentration).

• Core functions: purification, concentration, recovery.

• Applicable particle size: Suitable for the separation of fine and micro-fine-grained materials (usually <3mm).

Typical application scenarios

• Waste incineration slag treatment: Recovery of ferrous metal from slag, purification of non-magnetic aggregates.

• Mining industry: Iron ore separation, tailings re-selection and recycling.

• Ceramics and glass industry: remove iron impurities in raw materials, improve product whiteness and quality.

• Abrasives and refractories: purification of corundum, silicon carbide, feldspar and other materials.

• Soil remediation: Remove ferromagnetic heavy metal particles from contaminated soil.

Why choose our Countercurrent Wet Magnetic Separator?

• Built for Recovery: Designed for high recovery scenarios, ensuring that every gram of valuable metal particles is effectively captured.

• Built for Stability: Open magnetic system and anti-clogging design allows it to handle complex, sticky slag materials with very low failure rates.

• High return on investment: Highly efficient sorting results directly enhance metal recovery and the purity and value of the tailings, with a short payback period.

• Professional customization: We can recommend the most suitable tank form and magnetic field strength according to your specific material characteristics (particle size, concentration, magnetic content).