PET Crystallizer & Dryer

PET Crystallizer & Dryer，PET Crystallizer & Dryer，Integrated PET Crystallizing Dryer

# PET Crystallizer & Dryer（PET结晶干燥一体机）中英对照专业介绍 ## 一、Product Overview 产品概述 **中文** PET结晶干燥一体机，是PET原生颗粒、瓶片、再生破碎料（rPET）专用预处理设备，集成**预结晶+深度除湿干燥**两道核心工序，是瓶胚注塑、片材挤出、化纤拉丝生产线的标配辅机。非结晶PET直接高温加热极易软化粘连、结块，同时微量水分会造成熔融水解，这套设备专门解决两大行业痛点。 **English** PET Crystallizer & Dryer is a dedicated pretreatment unit for virgin PET pellets, bottle flakes and recycled PET regrinds. It integrates two core processes: pre-crystallization and ultra-deep dehumidifying drying, widely applied in PET preform injection, sheet extrusion and fiber spinning. Amorphous PET tends to soften and agglomerate under high temperature, and tiny moisture will trigger hydrolysis during melting, which can be perfectly solved by this integrated system。 ## 二、Working Principle 工作原理 **中文** 1. **结晶工段** 物料进入带低速搅拌的保温料仓，控温120~160℃持续翻动，逐步提升结晶度至35%~42%，颗粒变硬不再发黏，彻底杜绝高温干燥架桥、结块。 2. **干燥工段** 搭配分子筛除湿机，供给**-50~-70℃超低露点干燥热风**，160~180℃恒温逆流穿透干燥，*终含水率稳定控制在**≤50ppm**，避免挤出后气泡、发白、强度下降、粘度衰减。 3. **密闭输送** 干燥完成后直接负压送入挤出机料筒，全程隔绝外界湿气，防止二次回潮。 **English** 1. Crystallization Stage Materials are fed into an insulated hopper with low-speed agitator, heated at 120~160℃ with continuous blending. The crystallinity will rise to 35%~42%, making pellets rigid and non-tacky to avoid bridging and caking. 2. Drying Stage Matched with molecular sieve dehumidifier, it supplies dry air with ultra-low dew point (-50~-70℃). Under constant temperature 160~180℃ counter-flow drying, the final moisture content can be stably controlled below 50ppm, preventing bubbles, whitening and IV loss after extrusion. 3. Sealed Conveying Fully dried material is pneumatically conveyed to extruder directly without contact with ambient air to avoid re-absorbing moisture。 ## 三、Core Structure 核心组成 **中文** 1. 搅拌式结晶料斗：304不锈钢双层保温，内置耐磨螺带搅拌机构 2. 双塔分子筛除湿干燥主机（超低露点气源） 3. 循环加热系统、高精度过滤器、风机单元 4. PLC智能控制柜，可联动中央供料系统 5. 可选配真空吸料机、旋风除尘组件 **English** 1. Agitated crystallizing hopper: 304 stainless steel double-layer insulation, wear-resistant spiral agitator inside 2. Twin-tower molecular sieve dehumidifier for ultra-low dew point air supply 3. Circulation heating system, high-precision filters and blower assembly 4. PLC intelligent control cabinet, compatible with central conveying system linkage 5. Optional vacuum auto-loader and cyclone dust collector ## 四、Key Advantages 核心卖点 **中文** 1. 适配再生PET破碎料、薄切片等易粘物料，通用性更强 2. 闭环干燥工艺，南方高湿环境依旧稳定生产 3. 变频热回收再生设计，相比传统单机节能25%~40% 4. 温度、露点双重监测，超温、堵料自动报警 5. 连续24小时不间断运行，适配高速挤出生产线 **English** 1. Perfect for sticky recycled PET flakes and thin regrinds with strong versatility 2. Closed-loop drying technology, stable performance even in high-humidity southern areas 3. Variable frequency heat recovery design, saving 25%~40% energy vs traditional separate units 4. Dual monitoring of temperature & dew point, automatic alarm for overheat and blockage 5. 24/7 continuous operation, ideal for high-speed extrusion lines ## 五、Typical Application 应用行业 **中文** - PET矿泉水瓶胚、食用油瓶高速注塑 - BOPET薄膜、热成型片材挤出 - 再生PET造粒、化纤工业丝生产 - PLA、PBT等其他易结晶工程塑料改性 **English** - High-speed injection of PET water bottle & edible oil preforms - BOPET film and thermoforming sheet extrusion - Recycled PET pelletizing and industrial fiber production - Modification of PLA, PBT and other crystallizable engineering plastics