Rubber Lined Hydrocyclones

Cyclones are used in grinding circuits as an alternative to mechanical classifiers. They improve circuit performance by providing efficient classification, reducing maintenance requirements, and enabling stable operation under varying load conditions.

Performance / Efficiency Considerations

Sharpness of Classification

• Focus on minimizing coarse material in final product
• Helps in maintaining compact size distribution
• Reduces unwanted recirculation of fines

Methods to Improve Classification Efficiency

• Use of screens
• Two-stage cycloning
• Improved cyclone design

Comparison / Notes

Screens

• Classify strictly by size
• High capital and maintenance cost
• Limited use in grinding circuits
• Suitable for coarse separations and high-density products

Two-Stage Cyclones

• Can reduce fines returning to the mill
• Can improve separation sharpness
• Increases system complexity
• Higher capital, maintenance, and energy costs

Single-Stage Cyclone Optimization

• Preferred approach for efficiency
• Requires proper design and maintenance
• Can significantly improve circuit capacity

• Grinding circuit classification
• Replacement of mechanical classifiers
• Mineral processing operations
• Circuits requiring stable and efficient particle size separation

• Sharper classification compared to mechanical classifiers
• Requires less floor space
• Lower power consumption
• Reduced maintenance requirements
• Can be shut down instantly under full load
• Rapid stabilization of grinding circuit
• Eliminates cyclic surges in overflow product sizing