July 26, 2025
Large-scale grinding mills are essential equipment in mining, cement, and chemical industries for processing raw materials into fine powders. Proper installation and commissioning are critical to ensure optimal performance, longevity, and safety. This guide provides a comprehensive step-by-step procedure for installing and commissioning large-scale grinding mills, with a focus on efficiency and best practices.
Pre-Installation Preparation
1. Site Assessment
Before installation, conduct a thorough site assessment to ensure the foundation can support the mill’s weight and dynamic loads. Key considerations include:
- Soil bearing capacity
- Foundation design compliance with manufacturer specifications
- Accessibility for transportation and maintenance
2. Equipment Inspection
Inspect all components upon arrival:
- Check for shipping damages
- Verify all parts against the packing list
- Ensure critical components (e.g., bearings, gears) are properly lubricated
Recommended Foundation Specifications
| Mill Type |
Foundation Depth (m) |
Concrete Grade |
Anchor Bolt Tolerance (mm) |
| Ball Mill |
3.5-5.0 |
C30-C40 |
±2 |
| Vertical Roller Mill |
4.0-6.0 |
C35-C45 |
±1.5 |
Installation Procedure
1. Foundation Installation
Follow these steps for foundation preparation:
- Excavate to required depth based on geotechnical report
- Install reinforcement steel according to structural drawings
- Pour concrete in continuous operation to prevent cold joints
- Allow proper curing (minimum 28 days for full strength)
2. Mill Assembly
For our SCM Ultrafine Mill (45-5μm), the assembly process includes:
- Position the base frame and align within 0.1mm/m tolerance
- Install grinding rollers with pre-load adjustment
- Mount the classifier assembly with laser alignment
- Connect the pulse dust collection system
SCM Ultrafine Mill Technical Highlights
| Feature |
Advantage |
| Vertical Turbine Classifier |
Precision particle size control (D97≤5μm) |
| Special Alloy Rollers |
3x longer lifespan than conventional mills |
| Intelligent Control System |
Automatic feedback for consistent product quality |
Commissioning Process
1. Mechanical Commissioning
Before power-on tests:
- Verify all fasteners are torqued to specifications
- Check gear meshing patterns (contact area >80%)
- Confirm lubrication system flow rates
- Perform manual rotation test (3 full revolutions minimum)
2. Electrical Commissioning
For our MTW Series Trapezium Mill, electrical checks include:
- Insulation resistance test (minimum 1MΩ at 500VDC)
- Motor rotation direction verification
- PLC system I/O point testing
- Safety interlock validation
3. Operational Testing
Gradual load increase procedure:
MTW Series Performance Parameters
| Model |
Power (kW) |
Capacity (t/h) |
Noise Level |
| MTW175G |
160 |
9.5-25 |
≤75dB |
| MTW215G |
280 |
15-45 |
≤78dB |
Post-Commissioning
1. Performance Verification
Conduct 72-hour continuous operation test while monitoring:
- Vibration levels (should not exceed 4.5mm/s RMS)
- Bearing temperatures (max 75°C for standard bearings)
- Product fineness consistency (sampling every 2 hours)
2. Operator Training
Essential training topics include:
- Emergency shutdown procedures
- Wear part replacement techniques
- Optimization of grinding parameters
- Predictive maintenance scheduling
Proper installation and commissioning of large-scale grinding mills like our SCM Ultrafine Mill and MTW Series Trapezium Mill ensure maximum productivity and equipment longevity. By following this systematic approach, operators can achieve:
- 30-50% lower energy consumption compared to conventional mills
- Precise particle size control down to 5μm
- Stable operation with maintenance intervals extended by 40%
For specific technical requirements, consult our engineering team for customized solutions.
