Mixing pasty media of complex rheology. Theory

Overview

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AUTHORS

Hervé DESPLANCHES: Engineer from École supérieure de chimie de Marseille - Doctor of Science - Professor of process engineering at ENSSPICAM (École Nationale Supérieure de Synthèses, de Procédés et d'Ingénierie Chimique d'Aix-Marseille)
Jean-Louis CHEVALIER: Engineer from École supérieure de chimie de Marseille - Doctor of Science - Professor Emeritus of Process Engineering at ENSSPICAM

INTRODUCTION

Firstly, the main rheological behaviors of industrial pastes are presented, along with criteria for selecting mixers to handle these complex media. Then, the available correlations, concerning more specifically stirred tank type mixers, are analyzed with regard to stirring power, mixing time and heat transfer, with emphasis on the effects of the rheological complexities of pasty media; the rare correlations relating to other types of mixers will be presented in more detail. .