Dry Magnetic Separator 0.4mm-0.8mm Wet Magnetic Separator For Fine Particles

Wet vs Dry Magnetic Separation Separator

1.Product Introduction Magnetic Separator

Magnetic separation technology is a physical method that utilizes the magnetic differences between substances for separation. It is widely applied in mining, recycling, and industrial purification. Based on the state of the material being processed, magnetic separation is categorized into two primary types: Wet Magnetic Separation and Dry Magnetic Separation.

• Wet Magnetic Separation: Refers to the magnetic separation process conducted in a slurry state (a mixture of material and water). The material is suspended and transported by water flow through a magnetic field. Magnetic particles are adsorbed and separated under the combined action of magnetic force, gravity, and fluid dynamics.

• Dry Magnetic Separation: Refers to the magnetic separation process conducted while the material is completely dry. Materials pass through the magnetic field in the air, and magnetic particles are adsorbed and separated primarily by magnetic force without the use of any liquid media.

2.Application Magnetic Separator

• Wet Magnetic Separation Applications: Ideal for processing ores with high moisture content, fine particle size, or a tendency to slime. In the mining industry, it is commonly used for fine-grained iron ores (such as magnetite and hematite), beach placers (separating ilmenite, zircon, etc.), and scenarios requiring high-precision sorting. Furthermore, it is widely utilized for recovering magnetic impurities from industrial wastewater, purifying food and pharmaceutical raw materials, and reclaiming grinding media.

• Dry Magnetic Separation Applications: Best suited for materials with low moisture content and coarse particle size. In mining, it is particularly advantageous for sorting iron, manganese, and tungsten ores in arid or water-scarce regions. It is also frequently used for pre-tailing (rejecting waste rock) to increase the grade of feed entering the grinding mill, as well as for final cleaning after materials have been dried.

3.Working Principle Magnetic Separator

Wet Magnetic Separator

The ore pulp is fed into the equipment's tank. Under the influence of the magnetic field, magnetic mineral particles undergo magnetic aggregation, forming "magnetic clusters" or "magnetic chains," which are then adsorbed onto the surface of a rotating magnetic drum. As the drum rotates, these clusters are carried away from the pulp stream. Simultaneously, the alternating magnetic poles produce a "magnetic stirring" effect that strips away any non-magnetic gangue minerals trapped within. Finally, the magnetic substances are collected as concentrate, while the non-magnetic substances are discharged as tailings.

Dry Magnetic Separator

Dry material is conveyed to the magnetic field zone (such as near a magnetic roller or drum). Magnetic mineral particles are attracted by the magnetic force and adsorbed onto the magnetic pole surface, moving away from the original material stream as the equipment operates. Non-magnetic or weakly magnetic particles, being unaffected or minimally affected by the magnetic force, fall along their original trajectory due to gravity or inertia, thereby achieving separation.

4.Advantages Magnetic Separator

Wet Magnetic Separation Advantages

• Superior Efficiency for Fine Particles: High separation efficiency for fine and ultra-fine minerals, resulting in higher-grade concentrates.

• Enhanced Purity: The water flow helps wash mineral surfaces, reducing gangue entrapment and improving concentrate purity.

• Dust Control: The wet process eliminates flying dust, significantly improving the working environment.

Dry Magnetic Separation Advantages

• Water Conservation: No water is required, providing significant cost and environmental benefits in water-scarce areas while eliminating the need for wastewater treatment.

• Simplicity and Compactness: The equipment structure is relatively compact and simple, requiring a smaller footprint. It is easy to install and operate with lower maintenance costs.

• Pre-Concentration Efficiency: Highly effective for processing coarse materials, allowing for efficient pre-tailing which reduces energy consumption in downstream grinding stages.

5.Technical Specifications Magnetic Separator

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