(S Plant Technical Report with German-Japanese Methods)
Process Innovation Highlights
S Cement Plant‘s closed-circuit grinding system achieves industry-leading performance through:
CKP-170 vertical mill + φ3.9m×12m dual-chamber ball mill synergy
95% material ≤10mm after CKP pre-grinding
Cyclone separator with 260% circulation load rate
Key Performance Metrics
| Parameter | Result | Industry Benchmark |
|---|---|---|
| Power Consumption | 39 kWh/t | 42-45 kWh/t |
| 28-Day Strength | 52 MPa | 48-50 MPa |
| Quality Stability | 32μm residue ±0.5% | ±2% variation |
Precision Quality Control Technology
1. German Negative Pressure Sieve Advantages
Our DIN 66165-compliant sieve system outperforms laser analyzers for routine QC:
Speed:
32μm test: 8-10 minutes (vs 25+ minutes for laser)
45μm test: 4-6 minutes with <0.5% error margin
Reliability:
Zero clogging with 70mm sieve diameter design
1g sample size ensures representative testing
Technical Note: Laser analyzers show 15-18% higher sub-10μm readings due to particle agglomeration.
2. Why 32μm Residue is Critical
When 32μm residue exceeded 16-20% control range:
28-day strength decreased by 4MPa
80μm residue remained unchanged at 0.2-0.4%
Particle distribution shifted +12% in 3-10μm range
Optimization Techniques
1.Grinding Aid Application
0.02-0.03% dosage optimizes:
Particle distribution (reduces over-grinding below 3μm)
Mill throughput (+8% capacity observed)
2.Separator Efficiency Management
Maintain 60% separation efficiency
Control return material ≤10mm at 95% rate
3.Particle Distribution Control
32μm + 45μm residue dual monitoring
Hourly Blaine tests for correlation verification
Technical Achievements
P.O 42.5R Cement Properties:
Initial setting time: 45-55 minutes
3-day compressive strength: 28±0.5 MPa
28-day strength consistency: ±1.2 MPa
System Reliability:
12,000+ operating hours without major maintenance
<0.1% production downtime due to QC issues
If you have any questions or needs regarding cement grinding, please feel free to contact us. We look forward to collaborating with you to advance the development and progress of the cement industry!
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