Calcium carbonate (CaCO3) grinding is a critical process in industries ranging from pharmaceuticals to construction. Achieving the desired particle size distribution requires precise equipment selection and process optimization. This guide explores key steps in calcium carbonate grinding and provides expert recommendations for mill selection.
Prior to grinding, calcium carbonate raw materials must undergo:
Process Stage | Target Size | Equipment Options |
---|---|---|
Primary Crushing | ≤50mm | Jaw Crusher, Hammer Mill |
Intermediate Grinding | 100-500μm | MTW/MTM Series Mills |
Fine Grinding | 5-45μm | SCM Ultrafine Mill, LUM Vertical Mill |
Three principal grinding mechanisms apply to calcium carbonate:
When selecting calcium carbonate grinding equipment, consider:
Factor | Requirement | Measurement |
---|---|---|
Energy Efficiency | ≤30 kWh/t (for D97=10μm) | Specific Energy Consumption |
Particle Size Control | ±1μm variation | Laser Diffraction Analysis |
Wear Resistance | ≥8,000 operating hours | Grinding Media Life |
For fine to ultra-fine calcium carbonate production (325-2500 mesh), we recommend our SCM Ultrafine Mill series featuring:
Key technical specifications of SCM series:
Model | Capacity (t/h) | Power (kW) | Fineness (mesh) |
---|---|---|---|
SCM800 | 0.5-4.5 | 75 | 325-2500 |
SCM1000 | 1.0-8.5 | 132 | 325-2500 |
SCM1680 | 5.0-25 | 315 | 325-2500 |
Implement these strategies to reduce grinding energy consumption:
Critical parameters for consistent calcium carbonate quality:
For coated calcium carbonate or nano-grade applications (D50 < 1μm), our LUM Ultrafine Vertical Mill provides:
Technical comparison of fine grinding solutions:
Parameter | SCM Ultrafine Mill | LUM Vertical Mill |
---|---|---|
Minimum Particle Size | 5μm (D97) | 0.5μm (D50) |
Energy Consumption | 25-35 kWh/t | 40-50 kWh/t |
Moisture Sensitivity | ≤2% | ≤5% |
Selecting the optimal calcium carbonate grinding system requires balancing production requirements with operational costs. Our SCM and LUM series mills provide comprehensive solutions from coarse grinding to nano-particle production. Contact our technical team for customized system design based on your specific raw material characteristics and product requirements.