摘要
为探索等温与非等温状态下啮合异向双螺杆挤出机的流道分布规律,采用Solidworks三维建模软件建立啮合异向双螺杆的物理模型,在Polyflow分析软件中进行相应的数值模拟。结果表明:在等温问题中,随着双螺杆转速的增加,出口方向上的压力、黏度、剪切速率变化趋势不同;在非等温问题中,挤出方向从入口到出口温度呈线性增加的趋势,并且沿着径向向外的方向,温度逐渐增加。
In order to explore the distribution law of flow path in isothermal twin screw extruder under isothermal and non isothermal state,using Solidworks 3 D modeling software to establish the physical model of meshing counter rotating twin screw extrude,the corresponding numerical simulation is carried out in the Polyflow analysis software.Numerical results show that:in the isothermal problem,the pressure,viscosity and shear rate of the exit direction vary with the increase of the speed of the twin screw;in the non isothermal problem,with the increase of the rotating speed of the twinscrew,the direction of the extrusion direction increases from the inlet to the outlet,and the temperature increases gradually along the radial direction.It can provide theoretical basis for further optimization of process parameters.
作者
王少峰
张媛
刘美莲
黄志刚
赵玉莲
古劲
宋宇
WANG Shao-feng;ZHANG Yuan;LIU Mei-lian;HUANG Zhi-gang;ZHAO Yu-lian;GU Jin;SONG Yu(School of Material and Mechanical Engineering,Beijing Technology and Business University,Beijing 100048,China;Plastic Beijing Municipal Key Laboratory of Health and Safety Quality Evaluation Technology,Beijing 100048,China)
出处
《食品与机械》
CSCD
北大核心
2018年第10期71-74,共4页
Food and Machinery
基金
北京市自然科学基金项目北京市教育委员会科技计划重点项目(编号:KZ201810011017)
国家重点研发计划(编号:2016YFD0400305)
关键词
双螺杆挤出机
啮合异向
流道分布
等温
非等温
数值分析
double screw extruder
counter rotating intermeshing
flow path distribution
isothermal
non isothermal
numerical analysis
作者简介
王少峰,男,北京工商大学在读硕士研究生;通信作者:黄志刚(1966-),男,北京工商大学教授,博士。E-mail:huangzg@btbu.edu.cn.
