PLA Plastic Crystalizing Dehumidifying Dryer production of 4500KG/H，Dehumidifying Dryer ，production，Low-speed stirring，Crystallization drying machine

**PLA Plastic Crystallizing Dehumidifying Dryer (4500KG/H)**

### **MegaDry?-PLA 4500: High-Throughput Crystallization & Drying System**  

**Designed for Industrial-Scale PLA Processing**  

*Capacity: 4,500 kg/hr | Dew Point: -50°C | Energy Efficiency: 0.25 kW/kg*

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### **Core Technology Highlights**

#### **1. Dual-Stage Crystallization Reactor**  

- **Pre-Crystallization Zone**:  

 - Infrared preheating to 80°C (±2°C) → Initiates crystal nucleation  

 - Residence time: 45-60 mins (adjustable via HMI)  

- **Main Crystallization Zone**:  

 - Precision ramping to 105-110°C → Optimizes α-crystal formation  

 - Agitation system ensures >98% crystallinity uniformity  

#### **2. Military-Grade Dehumidification**  

| Component | Specification |  

|-----------|---------------|  

| **Desiccant Towers** | Twin-tower molecular sieve (13X type) |  

| **Dew Point** | -50°C stable at 100% load |  

| **Airflow** | 25,000 m3/hr (variable frequency control) |  

| **Moisture Removal** | <80 ppm residual humidity |  

#### **3. Energy Recovery System**  

- **Heat Reclaim Technology**:  

 - Recovers 75% waste heat from crystallization zone → Pre-heats drying air  

 - Reduces energy consumption by **42%** vs. conventional systems  

- **Zero-Emission Design**:  

 - Closed-loop N? purging prevents PLA oxidation (MW loss <5%)  

---

### **Technical Specifications**  

| Parameter | Value |  

|-----------|-------|  

| **Throughput** | 4,500 kg/hr (108 tons/day) |  

| **Power Consumption** | 1,125 kW (at full load) |  

| **Hopper Volume** | 15 m3 (stainless steel 316L) |  

| **Thermal Uniformity** | ±1.5°C across material bed |  

| **Residual Moisture** | ≤100 ppm (ISO 15512 certified) |  

| **Footprint** | 12m(L) × 5m(W) × 8m(H) |  

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### **Industry-Leading Innovations**  

#### ? **AI-Driven Process Control**  

- Real-time crystallinity monitoring via **NIR spectroscopy**  

- Auto-adjusts parameters based on:  

 ```python

 if PLA_MFI > 15g/10min:    # High-flow grade

     set_temp = 100°C  

     set_time = 50min  

 else:                       # High-strength grade

     set_temp = 110°C  

     set_time = 70min

 ```

#### ? **Hydrolysis Prevention System**  

- N? inert atmosphere (<50 ppm O?)  

- Moisture sensors trigger emergency purge if >150 ppm detected  

#### ? **Continuous Operation Design**  

- Dual-hopper switching → Zero downtime during material change  

- Self-cleaning heat exchangers (prevents lactide buildup)  

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### **Performance vs. Industry Standards**  

| Metric | Conventional Dryer | MegaDry?-PLA 4500 |  

|--------|--------------------|-------------------|  

| **Crystallinity Control** | 30-40% (±8%) | **40-45% (±2%)** |  

| **Drying Energy** | 0.48 kW/kg | **0.25 kW/kg** |  

| **IV Drop** | 0.08 dL/g | **<0.02 dL/g** |  

| **Annual Operating Cost** | $386,000 | **$198,000** |  

> *Based on 24/5 operation @ $0.12/kWh*

---

### **Integration with Downstream Processes**  

```mermaid

graph LR

A[MegaDry?-PLA 4500] --> B[Injection Molding]

A --> C[Film Extrusion]

A --> D[3D Printing Filament]

B --> E[Food Packaging]

C --> F[Agricultural Films]

D --> G[Medical Implants]

```

---

### **Certifications & Compliance**  

- **Food Safety**: FDA 21 CFR, EU 10/2011  

- **Explosion Proof**: ATEX Zone 22  

- **Environmental**: ISO 14001, RoHS 3  

- **Quality**: ISO 9001:2015 (crystallinity tolerance ±3%)  

---

### **ROI Analysis**  

| Investment Item | Cost | Savings |  

|-----------------|------|---------|  

| **Equipment** | $1.2M | -- |  

| **Energy Cost/Year** | -- | $188,000 |  

| **Material Waste Reduction** | -- | $75,000 (↓8% scrap) |  

| **Payback Period** | -- | **<24 months** |  

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**Technical Conclusion**  

> *"The MegaDry?-PLA 4500 sets the benchmark for industrial PLA preprocessing. Its synchronized crystallization-drying technology achieves DSC-verified 45% crystallinity with <100 ppm moisture, enabling high-speed production of medical implants and thin-wall packaging. With 42% lower energy use and AI-driven process stability, it delivers $263K/year operational savings at full capacity."*  

**Optional Upgrades**:  

- Robotic pellet loading system (+$150K)  

- On-site dew point calibration unit (+$85K)  

- Remote IIoT monitoring platform (+$60K/year)  

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*Note: All performance data validated with NatureWorks® Ingeo? PLA 7001D at 4,500 kg/hr throughput.*