Core Equipment Configuration
Patented Cylinder Technology for Stratified Fiber Control
Multi-Cylinder Forming System
5-7 Cylinder Layering
• Independent basis weight adjustment per layer (interlayer bonding ≥250J/m²)
• Reject pulp utilization up to 35% (including containerboard system residues)
Sludge Integration Module
• Sludge dryness enhanced to 28% (patented dewatering)
• Oriented sludge fiber distribution (tensile strength loss ≤8%)
Advanced Press Section
Large-Diameter Compound Press
• Ø1800mm vacuum press roll (60-150kN/m linear pressure stepless adjustment)
• Interlayer moisture gradient control (MD variation ≤±0.25%)
Surface Sizing Enhancement
• Dual-layer curtain coating (starch/PVA dual-system)
• Closed-loop coat weight control (±0.5g/m² accuracy)
High-Efficiency Drying
Multi-Zone Dryer Configuration
• Front dryer group 110-130℃ rapid setting (interlayer bonding reinforcement)
• Back dryer differential speed drive (paper shrinkage ≤0.015%)
Heat Recovery
• Condensate heat reuse (steam consumption ≤1.6t/ton paper)
• Dryer surface temperature deviation ≤±1.8℃ (IR monitoring)
Competitive Advantages
Waste Valorization + Layer Precision + Patent Edge
PM’s Patents
- Cylinder interlayer coupling control (core patent)
- Sludge fiber orientation technology (Patent ZL2022XXXXXXX)
Performance Guarantee
- Ring crush index ≥20N·m/g (200g/m² basis)
- Interlayer bonding CV ≤2.8%
Cost Leadership
- Raw material cost reduced by 18% (reject pulp/sludge substitution)
- Press roll maintenance interval extended to 3 years
Full Lifecycle Support
Closed-Loop Service from Waste Analysis to Process Optimization
- Material Adaptation
• Reject pulp fiber morphology lab (interlayer bonding simulation)
• Sludge calorific value & ash content analysis
- Patent-Driven Delivery
• On-site commissioning by Liu Hongtao’s team (≤30-day ramp-up)
• Preloaded 20+ production profiles in cylinder control database
- Sustainable Upgrades
• Sludge drying system retrofit (moisture reduced from 80% to 28%)
• Press section white water recycle rate increased to 92%
