What is a Drum magnet?

The drum magnet separates iron impurities from the magnet device’s input material on a continual basis. The magnet drum is made by putting a 180-degree magnetic arch inside a non-abrasive stainless steel shell with aluminum caps to keep it in place. The drum shell and cap assembly rotate around the fixed magnet arc at a set speed.

When non-magnetic material is charged on the surface of the magnet drum, it falls in front of the drum in a natural direction, while magnetic material is absorbed by the magnet and circulated on the drum shell to the magnet’s final point and on the rear. The drums have all been emptied.

Ceramic magnets and neodymium magnets are two types of drum magnets that produce magnetic fields with varying amplitudes and gradients.

Drum speed, separation blade location, kind of magnet components, number of poles, and drum size are all important factors in magnet drum separation efficiency.

Magnet drums are primarily used to refine raw materials for the glass, tile, ceramic, culinary, recycling, casting, and steel industries. They’re also commonly utilized in the refinement of iron ore and ferroalloys.

 

How does a Drum magnet work?

Drum magnets separate magnetically charged bulk materials and materials with rapid flow rates. Bunting’s self-cleaning drum magnets and drum separators can remove ferrous impurities from a wide range of free-flowing bulk and granular materials in high-volume applications. When material flows onto a drum magnet, a stationary magnetic assembly within the unit’s shell collects tramp metal and secures it to the drum’s stainless steel surface. The excellent product falls easily to a discharge point once impurities have been eliminated. Cleats sweep ferrous material through and out of the magnetic field as the drum rotates.

 The tramp metal is then discharged independently, resulting in a magnetic separation system that is constantly self-cleaning. Food, plastics, powder and bulk, grain and milling, and metal recycling are just a few of the sectors that benefit from drum magnets. They come in two different styles: open and enclosed. The open, housing-free form is suitable for mounting at the end of conveying devices, such as chutes, to remove ferrous impurities. The completely enclosed design, which includes a housing, is appropriate for situations where the product must be protected from contamination from the outside.

 This also helps you keep your staff safe from breathing any dust that the product may emit.

 

Magnetic Drums have the following features:

Designed for self-cleaning and continual separation. Ideal for applications requiring a lot of flow and a lot of pollution. The drum is stainless steel, while the housings are mild steel or stainless steel.

Maximum Ferrous Metal Recovery

Maintenance Requirements

They take very little space and are simple to use.

They are versatile enough to be used for a variety of purposes.

 

Advantages:

Removes ferrous particles from nonferrous powders and granules with ease.

Plastic, food, fertilizer, pharmaceutical, chemical, glass, and continuous process factories are all good candidates.

Ensure that crushers, grinders, pulverizers, and other connected equipment are well-protected.

It’s suitable for the mining and ore dressing industries.

Reduce the risk of fires and explosions in plants that handle explosive materials.

Reduce break-down time and improve quality to save money, time, and labor.

The machine can be fitted with a PLC and a variable frequency drive (VFD).

RUM MAGNET OPERATING PRINCIPLES

Using magnetic drum separators, metal particles are separated from slurries, granules, or powders.

 These industrial magnets are designed for applications that need a large volume of product turnover on a regular basis. These self-cleaning continuous drum magnets are suited for applications with a lot of ferrous and para-magnetic pollution.

A magnetic field draws ferrous material to the revolving outer drum as it is introduced to the drum surface. This operation creates a self-cleaning action by continuously conveying the caught ferrous material out of the product flow to the ferrous discharge region.

Magnetite recovery in heavy media mining circuits, tramp metal extraction, and product purification are common applications for magnetic drum separators.

A magnetic field draws ferrous material to the revolving outer drum as it is introduced to the drum surface. This operation creates a self-cleaning action by continuously conveying the caught ferrous material out of the product flow to the ferrous discharge region.

When sizing a drum magnet to achieve effective recovery, many aspects must be considered, including the kind of material being processed, volume per hour, particle size range, and ferrous material.

 

Magnetic drums serve three uses in mineral processing lines:

Recovery of magnetic materials and hematite from iron ore mines and…

De-ironing of materials in industries to cleanse and improve quality

Iron particles that enter the crushing machines and cause major damage are removed.

Magnet drum types come in a variety of shapes and sizes.

In general, depending on the use, magnet drum magnets are manufactured in two different models:

FED (Frag Electro Drum): This type of drum magnet is used to recover ferrous metals with the highest purity possible.

SED (Slag Electro Drum): This type of magnet is used to recover ferrous metals to the greatest extent possible.

 

What is a magnet drum’s structure?

The magnet drum has stationary electromagnetic coils inside a non-magnetic casing, commonly constructed of manganese alloy. Separating rods made of stainless steel are included in this apparatus.

The shell spins at a consistent speed around the electromagnetic coil when the device is turned on, dependent on the volume of material to be treated. Next to this device is a monitor that displays the quantity of energy created in the machine as well as system performance, allowing the operator to detect and modify the device’s speed.

The electromagnetic coil is made up of a weak steel core and strong insulators like Nomex-coated aluminum wire or anodized aluminum sheet.

FED magnet drums use an alternating winding design to continuously remove ferrous metals from a mass of products in applications such as municipal waste and auto parts factories, with the goal of absorbing as much iron as possible; however, SED magnet drums use a radial pole coil design, which keeps the metal firmly in the system shell throughout the 180-degree cycle.

Electro-drum or magnet drum magnets are made to deal with ferrous metal that is big, inclined, and heavy. Because of iron metal’s great size and weight, a highly strong and deep magnetic field is necessary to separate it from the bulk of mixed goods generated by electromagnetic coils or permanent magnets in the magnet drum.

In working mode, the material is absorbed or eaten at one of three places on the drum, depending on the process setup.

 

These are the points:

All of the mixing materials are sent to the magnet drum’s top. After that, the metals are absorbed and retained in the drum shell until being ejected beneath the drum.

The adsorbed metals are released in front of the device when the material is transported to the center of the magnet drum.

The material enters the machine through the magnet drum, and the metals absorbed through the tangled material are stored in the drum shell until the process is finished.

In reality, non-magnetic or non-metallic materials will fall forward in all three types of magnetic drum devices, following the natural path of their movement in the device, and will not be absorbed.

 

What distinguishes the various versions of magnet drums?

Although we addressed the usage of two versions of magnet drums, the FED and SED, in the preceding sections, each has its own set of features that you should familiarize yourself with before purchasing and utilizing them. We’ll go through these features in more detail later.

 

Electro Drum Model Frag (FED)

With a single auxiliary coil, the FED design creates alternating polarity with a primary coil that spans the whole width of the drum magnet. This design is frequently employed in situations where magnetic elements may be trapped or buried beneath non-metallic materials. These drum magnets are made to spin the extracted magnetic material on the drum’s surface, releasing the non-metallic material trapped between the ferrous and the magnet.

The primary coil of an asymmetric bipolar coil focuses the highest flux at the extraction point, while the secondary coil ensures that the ferrous material around the drum reaches the discharge location. They’ve been moved.

As it rotates around the drum, the magnetic field absorbs items such as metals and any materials containing metal alloys. This function removes non-magnetic spinning particles from the product stream, resulting in a cleaner, higher-purity magnetic product.

Thermal energy is in charge of cooling the gadget and increasing the coil’s field. As a result, the magnet’s efficiency improves. By lowering the slope, this cooling device also dramatically lowers the temperature.

 

Slag Electro Drum Model (SED)

This device features two or more symmetrical coils (depending on the width) and a continuous-rotating radial pole. A computer created this magnetic absorption system to enhance performance. The system is made up of an anodized aluminum sheet with a weak steel core. Inside the revolving covers, the magnet system remains fixed.

 

Dry Magnetic Drum Separators Have the Following Advantages:

Magnetic Drum Separators (Dry):

Dry Drum Magnetic Separators help milling and processing operations run more efficiently by upgrading the appropriate input material first. Dry Drum Magnetic Separators from Multotec are suited for rougher or initial beneficiation processes. They achieve maximum efficiency by recovering highly magnetic material while concurrently discharging non-magnetic materials using permanent magnet designs.

Ferrous metal is removed from dry, free-flowing bulk solids using a magnetic drum separator. It is self-cleaning and can be purchased as a housing or just the magnetic drum.

 

How does a magnetic drum separator work?

A vibratory feeder or conveyor feeds a consistent product flow into the magnetic drum separator. The substance enters the housing at the top and flows across the drum’s surface. All non-ferrous material that is unaffected by the magnet falls free of the magnet and into the “cleaned” flow as the drum shell spins around the stationary magnetic field. The magnetic field captures any ferrous tramp metal and holds it to the drum’s surface. The metal is dragged past the diverter as the drum turns, and it is discharged outside of the magnetic field for collecting.

 

Features of Magnetic Drum Separators

Ceramic or rare earth magnets with great strength

More than 180 degrees of magnetic arc protection

Magnetic arc position can be adjusted manually.

Drum diameters range from 12 to 24 inches.

Drum widths range from 12 to 60 inches.

A diverter was installed to separate the cleaned product from the tramp metal that was collected.

To prevent product from flowing around the backside of the drum, use a flex seal.

Inspection and drum removal access doors

Drum supports and driving bearings are sealed.

What is separator drum?

Magnetic Drum Separators are used to separate ferrous material from free-flowing bulk solids and to concentrate and reclaim ferrous products in slurries.

These self-cleaning industrial magnets are designed for applications requiring a large volume of continuous operation. Product turnover is high, and there is a lot of ferrous and para-magnetic contamination. Magnets in the form of drums are widely employed in a variety of applications. Prevent costly downtime by protecting grinders, crushers, and other plant process equipment.

 

Guide to Selecting the Right Magnetic Separator

1. Type of Metal Contamination

The sort of metal contamination is the first item to evaluate. Is it primary pollution, which typically consists of larger pieces of tramp metal like nuts, bolts, and screws? Or are you dealing with secondary contamination, such as small particles from equipment wear, such as stainless steel particles?

2. Process Feed Method

The product’s flow through the process is the next factor to examine. Is the conveyor gravity or free-fall fed, pneumatic or mechanical, or pressure pipeline fed?

3. Process Flow Rate

The volume of product moving through the process has an impact on the design, size, and features of a metal separator, so keep that in mind. In most cases, this is represented in cubic metres per hour.

4. Cleaning Method

Cleansing separators is necessary, and the cleaning method must be compatible with the overall process.

5. Material Flow Characteristics

Different materials flow in different ways, influencing the metal separator selection. Dry free-flowing goods, powders, pellets, granules, wet viscous solutions, and even damp products with a tendency to cluster or cake are examples of this.

6. Operating Temperature

A magnetic separator’s performance might be affected by extreme temperatures. It is critical to indicate the operation temperature when sourcing a separation unit.

 

It’s all about the service.

Vulcan Sanat Sepahan Company (also known as VSS Co.) was created in 1992 as a specialist, fully integrated international manufacturing group with a core specialization in rubber manufacturing. This company specializes in different forms of rubber. It focuses on designing and manufacturing in mines, tiles, textiles, port and shipping, rail and wagon, packaging and publishing, steel and vehicle manufacturing with a dependable enterprise. Because of the long experience and background, the experts at this company can provide appropriate solutions in the fields of ultra-heavy rubber products, ball mill liners, various compounds, rubber and wheel coverings, metal molding, and complex element designs. The company’s customer service staff has been able to understand customers’ needs and wants, allowing the company to satisfy the needs of national industries for rubber parts as well as modernize and use laboratory equipment in the field of quality production and employment.

Upgrades material feed for increased milling and grinding productivity. Ideal for cobbing iron ore beneficiation or banded iron stone removal on a diamond machine.

Magnetic recovery solutions that are flexible are available.