At the production site of the mine, the treatment of the ore slurry is a key link that determines the production efficiency. A well-functioning centrifuge is like a precise-running industrial heart, precisely separating the mixed mineral particles according to different densities.

This seemingly simple physical separation process actually embodies the essence of modern mechanical manufacturing and intelligent control technologies.

The physical principle of centrifuge

The core principle of the mining centrifuge is based on the separation rule of density differences. When the mixed ore slurry rotates at a speed of 2000-3000 r/min, the generated centrifugal acceleration can reach 100-300 times the gravitational acceleration.

In this centrifugal force field, high-density mineral particles (such as metal concentrates) quickly settle to the inner wall of the drum, while low-density impurities are separated through the discharge port. The advanced spiral discharge system can achieve efficient operation of handling 30-150 tons of materials per hour under continuous operation.

Application Map of the Entire Mining Site Scenario

In a certain large-scale coal mine in Inner Mongolia, a centrifuge with a diameter of 1.2 meters has a daily processing capacity of 3,000 tons per machine. It reduces the moisture content of the clean coal from 28% to 16%, and increases the calorific value by 500 kcal/kg.

In the Jiangxi rare earth mine, through a three-stage centrifugal series process, the recovery rate of rare earth oxides exceeds 92%, while reducing the consumption of chemical agents by 30%.

What is more remarkable is that in the field of dry tailings discharge, the new centrifugal-press filtration combined system can reduce the moisture content of tailings to below 15%, creating possibilities for the ecological restoration of the mine.

Hardcore technology builds performance barriers.

• Composite wear-resistant armor:

The inner lining of the drum is made of a composite structure of tungsten carbide hard alloy and polyurethane elastomer, with a hardness of over HRC85. Its service life is 5 to 8 times longer than that of traditional steel.

• Dynamic balance system:

Equipped with an automatic correction device, it can control the rotor vibration value within 0.5mm/s, ensuring the stable operation of the equipment even when the pulp concentration fluctuates.

• Intelligent sensing network:

Integrates pressure, temperature and vibration sensor groups to monitor in real time more than 20 parameters such as bearing temperature rise (with an accuracy of ±1℃) and lubricating oil condition.

New Direction of Intelligent Evolution

• The latest AI control platform developed by us is rewriting the industry rules: Through machine learning algorithms, the system can automatically identify over 300 kinds of mineral characteristic spectra and dynamically adjust separation parameters.
• The actual measurement data from a copper mine show that the intelligent control system has reduced the fluctuation range of concentrate grade from ±5% to ±0.3%, while lowering energy consumption by 15%. The introduction of the modular design concept has shortened the replacement time of core components from 8 hours to 90 minutes, significantly improving the online rate of equipment.

From simple mechanical separation to intelligent mineral sorting experts, the technological evolution history of mining centrifuges reflects the overall technological leap in the mining industry.

When 5G Internet of Things and digital twin technology are deeply integrated, future centrifuges may evolve into mining data processing centers, continuing to tell the intelligent legend of industrial manufacturing in the rotating drum.