Solid–liquid transport in a modified co-rotating twin-screw extruder—dynamic simulator and experimental validations

Prat, Laurent E.; N'diaye, Senghane; Rigal, Luc; Gourdon, Christophe

doi:10.1016/s0255-2701(03)00112-0

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…This includes simulators such as Sigma, TXS, Ludovic, and Akro-Co-Twin-Screw . However, twin screw extruders (and their variants) are also used to process other materials such as fibrous suspensions in the fiber composite, pulp and paper, and oil pressing industries. − Regrettably, far less research has gone into the design of global models for extruders used in nonpolymer processing applications, although some efforts have been made. ,, …”

Section: Introductionmentioning

confidence: 99%

“…5−8 Regrettably, far less research has gone into the design of global models for extruders used in nonpolymer processing applications, although some efforts have been made. 5,9,10 The following work focuses on the development of a composite model for the flow of fibrous wood suspensions in working twin screw extruders. This model is strongly influenced by the work of Vergnes et al 3 for plasticating twin screw extruders and retains its "screw-element-state" analysis and the 2D assessment of flow in the screw channels.…”

Section: Introductionmentioning

confidence: 99%

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Global Model for High-Consistency Wood Pulp Suspensions in Corotating Twin Screw Extruders

George

Naggar

Hrymak

2021

Ind. Eng. Chem. Res.

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A novel composite model was proposed for corotating, fully intermeshing twin screw extruders dedicated to the processing of high-consistency wood pulp suspensions. This model builds on plasticating extruder modeling techniques that have been applied to suspension processing applications and accounts for the unique rheology of a fibrous suspension and changes in consistency (i.e., composition) through liquid absorption and expression. The model was implemented into a simulator, and the potential of this simulator to predict the axial profiles of major processing variables (i.e., pressure, residence time, filling ratio, liquid and swollen fiber mass flow rate, and consistency) was successfully demonstrated through simulation and experimental comparisons. Although this model was developed for extrusion processing of wood pulp suspensions, it may be easily adapted to other suspension processing applications if the rheological properties of the suspension can be appropriately modeled.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Global Model for High-Consistency Wood Pulp Suspensions in Corotating Twin Screw Extruders

George

Naggar

Hrymak

2021

Ind. Eng. Chem. Res.

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“…J. Vaxelaire [15] and Richard J [16] also analyzed the process of sludge dehydration and separation technologies for sludge dehydration. L.Prat [17]studied the transport of solid-liquid, residence time distribution of these two phases [18]and dehydration output [19] through twin-screw extruder. While M. Seker.…”

Section: Introductionmentioning

confidence: 99%

Research on Screw-Extrusion Dehydration Technology and Equipment in Recycling Process of Urban Garbage

Zhang

2015

AMM

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As new and efficient dehydration technology and equipment needs to be applied to the recycling of Chinese urban garbage urgently, this study discusses the differences and similarities between spiral-extrusion and screw-extrusion physical model on dehydration technology. Based on the research on screw-extrusion dehydration technology, the factors that affect dehydration production volume and efficiency of urban garbage’s recycling have been analyzed. Using screw-extrusion theoretical model, the paper further discusses the influence of some parameters such as operation factors, geometric structure and urban garbage’s material performance. Finally, experiment research is made to examine the screw-extrusion theoretical model. The results show that appropriate screw speed can balance the production volume and dehydration efficiency. The main factors of geometric parameters are screw diameter, screw groove depth and helix angle, and all of these three factors can influence dehydration output and efficiency.

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Impact of Chemical Treatment and the Manufacturing Process on Mechanical, Thermal, and Rheological Properties of Natural Fibers‐Based Composites

Raji

Essabir

Bouhfid

et al. 2017

Handbook of Composites From Renewable Materials

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Solid–liquid transport in a modified co-rotating twin-screw extruder—dynamic simulator and experimental validations

Cited by 4 publications

References 8 publications

Global Model for High-Consistency Wood Pulp Suspensions in Corotating Twin Screw Extruders

Global Model for High-Consistency Wood Pulp Suspensions in Corotating Twin Screw Extruders

Research on Screw-Extrusion Dehydration Technology and Equipment in Recycling Process of Urban Garbage

Impact of Chemical Treatment and the Manufacturing Process on Mechanical, Thermal, and Rheological Properties of Natural Fibers‐Based Composites

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