Dynamics of a High Speed Melter/Mixer

D. Lyons; W. E. Baker

doi:10.3139/217.900136

Article

Dynamics of a High Speed Melter/Mixer

Published/Copyright: May 27, 2013

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From the journal International Polymer Processing Volume 5 Issue 2

Abstract

A first attempt at studying the internal dynamics of the Gelimat high shear polymer melter/mixer has been made, using slow motion photography of the inside of the fluxing chamber of the device during operation. Based upon these observations, a satisfactory mathematical model has been developed for the melting process which incorporates an energy balance and energy dissipation resulting from drag flow through a fluid bed. This model is a first step towards a more complete and rigorous theoretical treatment of the device, and allows for the prediciton of the time to melt a powdered polymer based on angular velocity of the mixing paddles, mixer geometry, polymer charge size, desired discharge temperature and the thermal properties of the polymer.

* Mail address: Prof. Dr. W. E. Baker, Dept. of Chemistry, Queen's University at Kingston, Kingston, Ontario, Canada.

Published Online: 2013-05-27

Published in Print: 1990-05-01

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https://doi.org/10.3139/217.900136