摘要
针对传统单螺杆挤出机剪切能力有限,对物料的混合能力不足这一缺点,使用SolidWorks三维软件设计了一种新型同轴双通道单螺杆挤出机,以黏性流体力学为理论基础,同等设计参数下的传统单螺杆挤出机为参照,利用Fluent平台对两种单螺杆挤出机从流道内压力、速度矢量、速度流线方面进行了对比分析。分析结果显示:新型单螺杆挤出机相比于传统单螺杆挤出机在输运段压力变化缓慢,但在混合段变化迅速;整体的挤出速度低于传统单螺杆挤出机;混合段的速度流线方向发生了明显的变化,且变得更加杂乱。研究结果显示:新型单螺杆挤出机的同轴双通道设计能有效降低物料的挤出速度,增加物料在混合段的停留时间,通过多次不断地剪切与搅拌,可以有效改善混合性能。
To address the issue of limited shear ability and mixing performance of traditional single-screw extruders,a novel coaxial dual-channel single-screw extruder was designed using SolidWorks 3D software.The design was based on viscous fluid mechanics,with the conventional single-screw extruder as a refer⁃ence,and utilized the Fluent platform to compare the two types of extruders in terms of pressure inside the channel,velocity vectors,and velocity streamlines.The analysis revealed that the new extruder exhibited slower pressure change in the transport section but more rapid change in the mixing section compared to the traditional one.Overall,the extrusion speed was found to be lower than that of the traditional extruder,and there were significant changes in the direction of velocity streamlines in the mixing section,which became more disordered.The research findings indicated that the co-axial dual-channel design of the new extruder effectively reduced the extrusion speed of the material,increased the residence time in the mixing section,and improved the mixing performance through multiple shearing and stirring processes.
作者
安志达
朱骄阳
姚俊
郭树国
ZHU Jiaoyang;YAO Jun;GUO Shuguo(School of Mechanical and Power Engineering,Shenyang University of Chemical Technology,Liaoning Shenyang 110142,China)
出处
《饲料工业》
北大核心
2025年第24期7-13,共7页
Feed Industry
基金
辽宁省自然科学基金项目[No.2022-MS-288]
2024年辽宁省教育厅高校基本科研项目[212410149018]。
