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https://www.magicmag-tech.com/Advantages-of-Magnetic-Couplers.html

From equipment performance to system energy efficiency, short-term investment to full life cycle cost, magnetic coupler is highly competitive, especially suitable for high-load, high-frequency start industrial scenarios, can reduce losses, reduce energy consumption, improve production stability, is the preferred choice for industrial transmission upgrades, specifically combined with typical scenario cases:

1. Large ball mill in mines

After 3 Φ4.2×13m ball mills in an iron mine were replaced with magnetic couplers (original hydraulic couplers):

Starting: Smooth acceleration, 75% less loose lining, double the gearbox overhaul cycle;

Energy saving: a single unit saves an average of 280 kWh of electricity per day, and 3 units save 180,000 yuan in annual electricity costs (total annual electricity saving exceeds 300,000 kWh);

Overload: 1.2 seconds of decoupling lag, only 5 minutes of reboot (4 hours in tradition).

2. Chemical centrifugal fan

After the 160kW exhaust gas treatment fan is replaced:

Vibration reduction: bearing vibration is reduced by 86%, temperature is reduced by 33%, and life is extended by 2 times;

Protect the power grid: the peak starting current drops by 47%, and there is no voltage interference;

Maintenance: Reduction of commissioning time by 89%, annual reduction of 16 hours of downtime to ensure standard operation.

3. Coal conveying belt of power plant

After the 1200t/h belt of a power plant is replaced:

Belt guard: starts without slipping, life is extended by 75%, and the replacement cost of a single strip is saved by 120,000 yuan;

Energy saving: 150,000 kWh of electricity saved annually for a single line, and 900,000 kWh for 6 trips;

Low temperature resistance: -25°C can be opened directly, eliminating the need for traditional preheating, reducing energy consumption and waiting time.

4. Further optimization of magnetic coupler energy efficiency

The energy-saving optimization of magnetic couplers requires in-depth matching of "scene conditions-coupler characteristics-system linkage", rather than a single parameter adjustment:

Mine scene: With "load fluctuation adaptation" as the core, through adjustable air gap and load linkage speed regulation to cope with ore changes, the annual power saving of 3 ball mills can increase by 8%-15% on the basis of the original 300,000 kWh, reaching 32.4-345,000 kWh.

Chemical scenario: focus on "speed regulation and vibration reduction", combine the exhaust gas concentration to adjust the speed of the fan, optimize the air gap vibration reduction energy consumption, and amplify the energy-saving effect;

Power plant scenario: Focusing on "low temperature and synergy", relying on insulation jackets, coal volume-speed linkage to reduce winter warm-up and belt idling losses, the annual energy saving of 6 belts can increase by 8%-15% on the basis of the original 900,000 degrees, reaching 97.2-1.035 million kWh.

At the same time, it is necessary to maintain the whole process of maintenance (such as testing the magnetic properties of permanent magnets, calibrating air gaps, and maintaining protective structures) to ensure stable energy-saving effects and maintain efficient transmission of the coupler.

https://www.magicmag-tech.com/Advantages-of-Magnetic-Couplers.html
SHANGHAI GAOLV E&M Technology Co.,Ltd.

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