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PET Crystallization Dehumidifier
PET Crystallization Dehumidifier ，PET Dehumidifier
### **PET Crystallization Dehumidifier: Technical Overview**
**—Precision Equipment for Enhanced PET Processing Stability**
---
#### **Core Technology**
1. **Simultaneous Crystallization & Dehumidification**
- **Thermal Profiling**: Programmable 3-stage heating (80°C → 140°C → 100°C) optimizes crystallinity (25–50%) while suppressing hydrolysis.
- **Ultra-Dry Airflow**: Achieves **-50°C dew point** via twin-tower molecular sieves, ensuring residual moisture **≤30 ppm** (ISO 15512 compliant).
2. **Intelligent Control System**
- Real-time monitoring of:
- Crystallization kinetics (via in-line DSC simulation)
- Pellet surface/bulk moisture differential
- Energy consumption per kg output
- Auto-adjusts airflow (0.2–1.0 m/s) and agitation frequency (5–30 Hz).
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#### **System Configuration**
| Module | Key Components | Performance |
|--------|----------------|-------------|
| **Preheater** | Corrosion-resistant screw conveyor | Pre-dries PET to ≤0.1% moisture |
| **Crystallizer** | Multi-zone fluidized bed (316L SS) | ±1°C uniformity across bed |
| **Dehumidifier** | Hybrid desiccant (3A+13X) | 98% adsorption efficiency |
| **Control Unit** | Siemens PLC + IoT dashboard | 50+ recipe presets |
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#### **Technical Specifications**
| Parameter | Value |
|-----------|-------|
| Capacity | 1–15 tons/hour |
| Energy Use | 0.16–0.24 kWh/kg |
| Residual Oxygen | <200 ppm (N? inertization) |
| Noise Level | ≤68 dB(A) |
| Pellet Breakage | <0.03% |
---
#### **Innovation Highlights**
- **Anti-Static Airflow**: Reduces fines generation by 65% through ionized nozzles.
- **Self-Regenerative Adsorption**: 15-minute cycle time with 85% heat recovery.
- **Dual-Mode Operation**: Switch between virgin PET and rPET (recycled) processing.
---
#### **Industrial Applications**
- **Bottle Grade Resin**: Maintains IV drop ≤0.03 dl/g for carbonated drink packaging.
- **Film Production**: Achieves ≤5 defects/100m2 in BOPET films.
- **Fiber Spinning**: Reduces broken filaments to <2% in textile-grade PET.
---
#### **Certifications & Compliance**
- **CE Mark** (EN 61439-1)
- **FDA 21 CFR §177.1630** (food safety)
- **ISO 14064** (carbon footprint verified)
#### **Operational Benefits**
- **30% Faster Cycle Times** vs. conventional dryers
- **18% Energy Savings** through regenerative heat exchange
- **99.9% Batch Consistency** in moisture/crystallinity
**Case Study**:
A Middle Eastern PET preform plant achieved:
- 40% reduction in drying energy costs ($12.5k/month saved)
- 0% moisture-related defects in 12 consecutive months
- Full ROI within 11 months
Deployed in 100+ global PET facilities, this system guarantees ≤50 ppm moisture for 99.95% of production batches. (Word count: 298)
