Control de calidad en el proceso de molienda del cemento

(S Plant Technical Report with German-Japanese Methods)

Process Innovation Highlights

S Fábrica de cemento‘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 con 260% circulation load rate

Key Performance Metrics

ParámetroResultIndustry Benchmark
Consumo de energía39 kWh/t42-45 kWh/t
28-Day Strength52 MPa48-50 MPa
Quality Stability32μm residue ±0.5%±2% variation

Precision Quality Control Technology

1. German Negative Pressure Sieve Advantages

Nuestra 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 con <0.5% error margin

  • Fiabilidad:

    • 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

Las dos imágenes muestran grandes equipos industriales, a saber, un molino vertical y un molino de bolas, lo que refleja su importancia en la industria.

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

Si tiene alguna pregunta o necesidad sobre la molienda de cemento, no dude en Contacto. ¡Esperamos colaborar con usted para impulsar el desarrollo y el progreso de la industria del cemento!

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