Introduction:
The overband electro magnets are a type of magnetic separator that use an electrical current to create a magnetic field. It is designed to separate and remove ferrous materials from conveyed materials on a conveyor belt.
Working Principle:
The electro overband magnet operates based on the principles of electromagnetism. When an electric current is passed through the insulated wire coil, a magnetic field is generated. This magnetic field attracts and captures ferrous materials as they pass over the conveyor belt, separating them from the non-magnetic materials.
While the electric current pass through the insulated wire coil to generate magnetic field,heat will generated inevitably,excessive heat will affect the work efficiency of the electromagnetic separator，what the worse is even burned the insulated wire coil,so how to discharge the excessive heat is an important type and part of costs constitute to the electro magnetic separator.How to discharge the excessive heat to protect the extend the life of the magnet.
The international general three ways is natural cooling,fan cooling and oil cooling.But the best way to discharge the excessive heat is oil cooling.
Natural cooled type electro overband magnet:
Unlike fan cooled and oil cooled types, the natural cooled type does not require any additional cooling mechanisms such as fans or oil circulation systems.
Operation: The natural cooled type electro overband magnet operates by connecting the insulated wire coil to a power source. Once the power is applied, the magnetic field is activated, and the magnet starts attracting and capturing the ferrous materials. The captured materials are then carried away by the moving conveyor belt, resulting in effective separation.
natural cooled how to works: The natural cooled type electro overband magnet does not require any additional cooling mechanisms.The insulated wire coil is typically designed with materials that have good thermal conductivity, allowing heat to naturally dissipate into the surrounding environment without the need for additional cooling mechanisms.
Application Industries and Necessity: The natural cooled type electro overband magnet finds applications in various industries where magnetic separation is required. Some common industries include mining, recycling, waste management, steel production, and bulk material handling. Its necessity in industry applications lies in its ability to effectively separate and remove ferrous materials from conveyed materials, ensuring product quality, protecting downstream equipment, and improving overall operational efficiency.
Fan Cooled Type Electro Overband Magnet:
Excessive Heat Discharge: The fan cooled type electro overband magnet is designed to discharge the excessive heat generated by the insulated wire coil using a fan machine. The fan is positioned near the coil and blows air over it to facilitate heat transfer and cooling.
Advantage compared with Natural Cooled Type: The advantage of the fan cooled type over the natural cooled type lies in its enhanced cooling capability. By actively blowing air over the coil, the fan cooled type can dissipate heat more efficiently, allowing the magnet to operate at higher temperatures and handle heavier loads without the risk of overheating. This results in increased performance, productivity, and operational flexibility.
Oil Cooled Type Electro Overband Magnet:
The oil cooled type electro overband magnet is known for being the most efficient type, capable of generating the strongest magnetic force available today. However, its cost is higher compared to other types due to the additional components and complexity involved in the oil cooling system.
Description:
The oil cooled type electro overband magnet utilizes a circulation system that circulates a cooling oil or coolant through the insulated wire coil. This oil serves as both a coolant and a medium for heat transfer. The coil is immersed in the oil, and heat generated during operation is transferred to the oil, which then carries the heat away, keeping the magnet cool.
Benefits and Efficiency:
The oil cooling system offers several advantages. It provides superior heat dissipation compared to natural or fan cooling, allowing the magnet to operate at higher temperatures and under heavy loads. This results in enhanced performance and efficiency. The oil also acts as an insulator, protecting the coil from moisture and environmental contaminants, thereby extending the magnet‘s lifespan.
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