Dry Powder Permanent Magnetic Separator

Product Overview

The dry powder permanent magnetic separator is a magnetic separation device specifically designed for dry powder materials. Using high-performance rare earth permanent magnetic material (NdFeB) as the magnetic source, it generates a strong magnetic field without the need for excitation power. This equipment is used for continuous, automatic separation of ferromagnetic impurities from dry powder materials. Featuring high magnetic field intensity, excellent iron removal efficiency, energy-saving operation, and easy maintenance, it is widely used for powder purification in non-metallic minerals, abrasives, refractories, chemicals, grain, feed, and other industries.

Core Advantages

• No Excitation Power Required: Uses high-performance NdFeB permanent magnetic material — zero energy consumption — extremely low operating cost — maintenance-free

• High Magnetic Field Intensity: Drum surface magnetic induction up to 4,000–6,000 GS — effectively captures fine ferromagnetic particles

• Continuous Automatic Operation: As material passes through the magnetic separation zone, iron impurities are attracted to the drum surface and automatically separated as the drum rotates

• Multiple Drum Options: Available from single-drum to four-drum configurations — can be used in series for multi-stage iron removal to meet different purity requirements

• Adjustable Feed Rate: Equipped with a vibrating feeder — feed rate adjustable to suit different particle sizes and flow rates

• Compact Structure: Small size, light weight — easy to install — can be quickly integrated into existing production lines

• Sealed & Dustproof: Fully sealed construction — no dust leakage — improves operating environment

Working Principle

Dry powder material is evenly fed into the magnetic separation zone by a vibrating feeder. As the material flows past the rotating permanent magnetic drum, ferromagnetic impurities are attracted to the drum surface by the strong magnetic field. Non-magnetic material falls by gravity and is discharged through the concentrate outlet. Iron impurities attracted to the drum surface rotate with the drum to the non-magnetic zone, where they automatically detach and are discharged through the iron outlet, completing the continuous iron removal process.

Typical Applications

• Non-Metallic Minerals: Quartz sand, feldspar powder, kaolin, calcium carbonate, graphite, sillimanite, andalusite, etc.

• Abrasives: Corundum, silicon carbide, emery, etc.

• Refractories: Bauxite, magnesia, pyrophyllite, etc.

• Chemical Raw Materials: Pigments, dyes, catalysts, plastic fillers, etc.

• Food & Feed: Flour, starch, powdered sugar, feed additives, etc.

• Others: Carbon black, ceramic raw materials, glass raw materials, and other dry powder materials from 10 to 500 mesh