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文章详情
PLA Crystallizer-Dryer
日期：2025-06-01 12:26
浏览次数：26
摘要：PLA Crystallizer-Dryer，结晶干燥机，PLA结晶机，PLA Crystallization & Drying Unit**
- **PLA Thermal Crystallization Dryer**
PLA Crystallizer-Dryer，结晶干燥机，PLA结晶机，PLA Crystallization & Drying Unit**
- **PLA Thermal Crystallization Dryer**PLA结晶干燥系统介绍
一、中文部分
聚乳酸（PLA）结晶干燥系统是针对生物可降解材料PLA特性设计的专用预处理设备，通过**控制温度、湿度和时间参数，实现材料结晶度优化与水分去除的双重目标。
1. 核心原理
PLA作为半结晶聚合物，其结晶度直接影响*终产品的热稳定性与机械性能。该系统通过阶梯式升温（60-100℃）诱导分子链有序排列形成晶体结构，同时采用除湿干燥技术将原料含水率降至50ppm以下。独特的双螺杆搅拌设计可提升热传导效率，确保材料受热均匀性。
2. 系统构成
由预热单元、结晶段（控温精度±1℃）、双级分子筛干燥塔、闭环除湿系统和智能控制系统组成。配备红外水分检测仪与在线结晶度分析模块，实现工艺参数的实时闭环调节。
3. 技术特点
- 结晶度控制范围：10-40%（可编程调节）
- 干燥能耗：≤0.25kWh/kg（行业**水平）
- 处理能力：500-5000kg/h（模块化设计）
- 残氧量控制：＜100ppm（防降解保护）
4. 应用价值
在注塑成型领域可使制品热变形温度提升20℃以上；纺丝应用减少断头率40%；薄膜生产实现结晶度均匀性±2%控制。系统兼容PLA/PBAT等生物基材料共混处理
，符合食品级GMP标准。
二、English Part
PLA Crystallization & Drying System
The PLA crystallization and drying system is a specialized pretreatment equipment designed for biopolymer processing. It integrates precise thermal management and moisture control to optimize material properties for downstream processing.
1. Technical Principle
This system employs a three-stage process: preheating (40-60℃), crystallization (controlled at 80-110℃), and deep drying (dew point -40℃). The crystallization phase induces 15-35% crystallinity through controlled thermal history, while the desiccant wheel dryer achieves <100ppm moisture content. Advanced PID algorithms maintain temperature uniformity within ±0.5℃ across material bed. 2. System Configuration Comprises: - Twin-screw preheater with variable frequency drive - Multi-zone crystallization chamber (8 independently controlled zones) - Rotary dehumidifier with silica gel/PVDF composite desiccant - Energy recovery unit (85% heat reclaim efficiency) - HMI interface with SCADA connectivity 3. Key Parameters - Throughput: 0.5-5 ton/hour - Power consumption: 0.28-0.35 kWh/kg - Crystallization time: 15-120min (adjustable) - Airflow velocity: 0.3-0.8m/s (optimized for PLA pellets) 4. Performance Advantages - Increases HDT of molded parts to 110-130℃ - Reduces cycle time by 25% in injection molding - Achieves 99.7% crystallinity consistency - Meets FDA 21 CFR compliance for food contact - 30% energy saving compared to conventional systems 在全球30+家生物塑料生产企业成功应用，平均提升制品良率18%，降低能耗成本22%。典型投资回报周期＜2年。（Total words: 890）
，符合食品级GMP标准。
二、English Part
PLA Crystallization & Drying System
The PLA crystallization and drying system is a specialized pretreatment equipment designed for biopolymer processing. It integrates precise thermal management and moisture control to optimize material properties for downstream processing.
1. Technical Principle
This system employs a three-stage process: preheating (40-60℃), crystallization (controlled at 80-110℃), and deep drying (dew point -40℃). The crystallization phase induces 15-35% crystallinity through controlled thermal history, while the desiccant wheel dryer achieves <100ppm moisture content. Advanced PID algorithms maintain temperature uniformity within ±0.5℃ across material bed. 2. System Configuration Comprises: - Twin-screw preheater with variable frequency drive - Multi-zone crystallization chamber (8 independently controlled zones) - Rotary dehumidifier with silica gel/PVDF composite desiccant - Energy recovery unit (85% heat reclaim efficiency) - HMI interface with SCADA connectivity 3. Key Parameters - Throughput: 0.5-5 ton/hour - Power consumption: 0.28-0.35 kWh/kg - Crystallization time: 15-120min (adjustable) - Airflow velocity: 0.3-0.8m/s (optimized for PLA pellets) 4. Performance Advantages - Increases HDT of molded parts to 110-130℃ - Reduces cycle time by 25% in injection molding - Achieves 99.7% crystallinity consistency - Meets FDA 21 CFR compliance for food contact - 30% energy saving compared to conventional systems 在全球30+家生物塑料生产企业成功应用，平均提升制品良率18%，降低能耗成本22%。典型投资回报周期＜2年。（Total words: 890）
