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瓶胚高速注塑干燥系统之二
日期：2026-08-18 02:50
浏览次数：145
摘要：瓶胚高速注塑干燥系统之二，高速注塑机，PET瓶胚，PET干燥系统
瓶胚高速注塑干燥系统之二，高速注塑机，PET瓶胚，PET干燥系统
二、系统核心定义与主流类型
瓶胚高速注塑干燥系统是集成PET 切片预结晶、深度除湿干燥、密闭恒温输送、热风再生循环、智能工艺联动的一体化聚酯干燥系统，专为瓶胚高速注塑的工艺需求定制。
The drying system for high-speed preform injection moulding is an integrated polyester drying system integrating PET chip pre-crystallization, deep dehumidification drying, airtight constant temperature conveying, hot air regeneration cycle and intelligent process interconnection, customized exclusively for the process requirements of high-speed preform injection moulding.
系统的核心目标是在连续供料的前提下，将 PET 切片含水率稳定降至≤20ppm，结晶度精准控制在 25%~35%，且切片无二次吸湿、无降解、干燥均匀，为高速注塑提供合格原料。
The core goal of the system is to stably reduce the moisture content of PET chips to ≤20ppm under the premise of continuous feeding, accurately control the crystallinity at 25%~35%, and ensure that the chips have no secondary moisture absorption, no degradation and uniform drying, so as to provide qualified raw materials for high-speed injection moulding.
根据设备集成度和产能适配性，瓶胚高速注塑干燥系统主要分为三机一体集成式、分体式组合、真空强化式三类，其中三机一体集成式因占地小、控制集成、联动性强，成为 96 腔及以上高速生产线的市场主流。
According to equipment integration and capacity adaptability, the drying systems for high-speed preform injection moulding are mainly divided into three types: three-in-one integrated type, split combined type and vacuum enhanced type. Among them, the three-in-one integrated type has become the market mainstream for high-speed production lines with 96 cavities and above due to its small footprint, integrated control and strong interconnection.
1. 三机一体集成式
三机一体集成式将预结晶器、除湿干燥机、密闭上料机集成于一体，结构紧凑，占地仅为分体式的 1/3，适配车间空间狭小的高腔数生产线。
The three-in-one integrated type integrates the pre-crystallizer, dehumidification dryer and airtight feeder into one body, with a compact structure and only 1/3 of the footprint of the split type, adapted to high-cavity production lines with narrow workshop space.
系统采用 PLC 集中控制，预结晶、干燥、输送参数联动调控，露点稳定在 - 40℃~-70℃，适配 48~288 腔瓶胚生产线，产能覆盖 0.5~8t/h，是目前瓶胚高速注塑的主流选择。
The system adopts PLC centralized control, with linked regulation of pre-crystallization, drying and conveying parameters, and the dew point is stable at -40℃~-70℃, adapted to 48~288 cavity preform production lines with a capacity coverage of 0.5~8t/h, which is the current mainstream choice for high-speed preform injection moulding.
The three-in-one integrated type integrates the pre-crystallizer, dehumidification dryer and airtight feeder into one body, with a compact structure and only 1/3 of the footprint of the split type, adapted to high-cavity production lines with narrow workshop space.
2. 分体式组合系统
分体式组合系统由独立的卧式 / 塔式预结晶器、双塔 / 转轮除湿干燥塔、真空输送机组合而成，可根据产能灵活搭配，适配 32~96 腔中小产能瓶胚生产线。
The split combined system is composed of independent horizontal/tower pre-crystallizer, double-tower/rotary dehumidification drying tower and vacuum conveyor, which can be flexibly matched according to capacity and adapted to small and medium capacity preform production lines with 32~96 cavities.
该系统的优势是单设备维护方便、后期可扩容升级，缺点是占地大、各设备参数需手动联动调节，控温精准度略低于集成式，适合瓶胚量产初期的中小生产线。
The advantage of this system is that the single equipment is easy to maintain and can be expanded and upgraded in the later stage, while the disadvantages are large footprint, manual linked adjustment of each equipment parameter, and slightly lower temperature control accuracy than the integrated type, which is suitable for small and medium production lines in the early stage of mass preform production.
3. 真空强化式干燥系统
真空强化式干燥系统在常规除湿干燥基础上增加真空腔室，采用负压环境进行干燥，可将干燥时间缩短 30%~50%，切片含水率可降至≤10ppm，适配医药、食品级**瓶胚生产线。
The vacuum enhanced drying system adds a vacuum chamber on the basis of conventional dehumidification drying, and adopts a negative pressure environment for drying, which can shorten the drying time by 30%~50% and reduce the chip moisture content to ≤10ppm, adapted to high-end pharmaceutical and food-grade preform production lines.
系统的核心优势是干燥效率高、切片热降解风险极低，缺点是设备造价高、维护要求严格，仅用于对瓶胚洁净度、力学性能要求极高的**应用场景。
The core advantages of the system are high drying efficiency and extremely low risk of chip thermal degradation, while the disadvantages are high equipment cost and strict maintenance requirements, which are only used in high-end application scenarios with extremely high requirements for preform cleanliness and mechanical properties.
三、系统核心组成与部件功能
瓶胚高速注塑干燥系统围绕 **“连续、均匀、低湿、防吸湿”的核心要求设计，三机一体集成式为行业主流，整体由预结晶模块、除湿干燥模块、密闭输送模块、热风再生模块、智能控制模块、保温辅件模块 ** 六大核心模块组成。
The drying system for high-speed preform injection moulding is designed around the core requirements of "continuous, uniform, low humidity, moisture-proof", with the three-in-one integrated type as the industry mainstream, and the whole system is composed of six core modules: pre-crystallization module, dehumidification drying module, airtight conveying module, hot air regeneration module, intelligent control module and thermal insulation accessory module.
各模块高度集成、协同工作，实现 PET 切片从原料上料到干燥成品送至注塑机料斗的全程密闭、无二次吸湿、参数精准可控，完全匹配高速注塑的工艺节拍。
All modules are highly integrated and work together to realize the whole process airtight, no secondary moisture absorption, and precise and controllable parameters of PET chips from raw material feeding to dried finished products sent to the hopper of the injection moulding machine, which fully matches the process cycle of high-speed injection moulding.
