Distributive Mixing Elements for Single Screw Extrusion Process：Mixing Analysis and Optimal Design
|關鍵字:||分配式混合元件;界面面積;色彩均勻度;有限元素流動分析;押出製程;混合度;distributive mixing element;interfacial area;color homogeneity;finite element flow analysis;extrusion;degree of mixing|
Single screw extruders with mixing elements were widely used in polymer extrusion. The most commonly used mixing elements aim to improve the mixing capability and increase the quality of product. This study aims to simulate the degree of mixing in various types of distributive mixing elements. This study investigated and analyzed the extent of mixing by changing the geometric shapes, numbers, and relative location of mixing pin elements. In this study, the three-dimensional finite element flow analysis was employed to simulate the polymer flow in the mixing section. The software adopted to simulate is ANSYS. The mean bulk ratio of interfacial area and index of color homogeneity were employed to indicate the mixing effect. Furthermore, the study aims to achieve optimal design in the mixing section. The results showed that the degree of mixing were better in Pineapple mixing section and Dulmage mixing section. By adding numbers and axial distance of mixing elements also improved the degree of mixing.
|Appears in Collections:||Thesis|