叶片转子对塑料熔体挤压输送作用及其分析  

The Role of Blade Rotor on Plastic Melt Extrusion Conveying and Its Analysis

作　　者：王涵 黄兴元[1] 潘留雯 李华延 Wang Han;Huang Xingyuan;Pan Liuwen;Li Huayan(School of Mechanical and Electronic Engineering,Nanchang University,Jiangxi Key Laboratory of Lightweight High Strength Structural Materials,Nanchang 330031,China)

机构地区：[1]南昌大学机电工程学院,江西省轻质高强结构材料重点实验室,南昌330031

出　　处：《工程塑料应用》2021年第5期75-81,共7页Engineering Plastics Application

基　　金：国家自然科学基金项目(51863014)。

摘　　要：在分析废旧塑料回收现状及传统塑料回收工艺的基础上,为完善热风循环熔融塑料回收造粒工艺,结合叶片转子结构,设计出新型热风熔融塑料回收造粒机。新型造粒机新增叶片转子式塑料熔体加压输送室。使用Polyflow对熔体在加压输送室输送过程进行了数值模拟,得出了当叶片转子转速不同时,熔体压力与速度变化的情况。结果表明,叶片转子转速提高时,能有效提高螺杆机筒入口处熔体的速度与压力。Based on the analysis of the domestic current situation of the waste plastics recycling and the basis of traditional plastic recycling technology,the hot air molten plastic recycling granulators is improved and combined with the blade rotor structure.The molten plastic pressurized transport room was designed.The new granulator was increased the molten plastic pressurized transport room with the type of rotor blade.The numerical simulation was carried out by Polyflow,which emulated the molten plastic conveying process in the pressurized conveying room.When the blade’s angular velocity was changed,the differences between the molten plastic’s pressure and velocity were compared and analyzed.The results show that the molten plastic’s velocity and pressure at the screw barrel inlet can be effectively increased when the blade’s angular velocity is increased.

关 键 词：塑料熔体 叶片转子 压力 POLYFLOW 数值模拟 

分 类 号：TH145.42[一般工业技术—材料科学与工程]