Design and Optimization of Online Dynamic Mixer and Its Performance Analysis

In this study, a dynamic mixer was designed to mix polymer melts online during extrusion, and the flow of melt in simulated using Polyflow software. The Orthogonal experiment conducted analyze effects three geometrical parameters (i.e. length entrance zone (Li), gap between rotor wall (g), diameter cone-shaped (d2)) on mixing properties mixer. Li, g, d2 were optimized for minimum product segregation scale (S) power consumption (P). Finally, compared with those SK SX static mixers. results indicated that among above-mentioned parameters, g most important parameter influencing S, S∙P. S∙P 1059 µm·W obtained when Li 16 mm, 1 24 mm. S decreased increase rotation speed from 120 360 r/min, increased rate 15 45 mL/min. However, P both rate. maximum shear observed zone, which mainly affected by rather than To achieve same size, shortest, longest. Moreover, acquire required largest P, needed smaller P.