单螺杆挤出机新型螺杆的设计及数值模拟分析  

Design and numerical analysis of the new type screw of single screw extruder

作　　者：郭树国[1] 张召[1] 王丽艳[1] 韩进[1] 

机构地区：[1]沈阳化工大学机械工程学院,辽宁沈阳110142

出　　处：《饲料工业》2016年第3期10-13,共4页Feed Industry

基　　金：辽宁省高等学校优秀人才支持计划[LJQ2015086]

摘　　要：设计了具有内流道与外流道的新型螺杆。运用CFX对具有内流道与外流道的新型螺杆元件的流场运动规律进行数值模拟,研究了豆粕在其流道中的运动情况,分析了宏观压力场,流场流线,耗能比以及挤出量的基本规律,并和普通螺杆进行对比分析。结果表明:由于内流道的存在,新型螺杆的挤出量大幅度提高,耗能比降低。该研究对单螺杆挤出机的设计开发具有一定指导意义。A new type of screw extruder with inner flow channel and outflow channel is designed.UsingCFX method to analyze material flow field of single-screw extruder which with inner flow channeland outflow channel,research and analyze the soybean meal movement.Including the macro pressurefield, flow field, energy dissipation ratio and extrusion amount.Comparison with single-screw extruderhaving a common barrel was performed.The results indicate that because of the existence of the innerflow channel, the new type of screw extrusion quantity is greatly improved and the energy consumptionis reduced. The study has certain guiding meaning to the design of single-screw extruder.

关 键 词：单螺杆挤出机 豆粕 CFX 有限元模拟 

分 类 号：S817.1[农业科学—畜牧学]