Paddle Agitator for Mixing of Viscoplastic Fluids and Pastes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F23%3A00368591" target="_blank" >RIV/68407700:21220/23:00368591 - isvavai.cz</a>

Výsledek na webu

<a href="http://mixing17.eu/" target="_blank" >http://mixing17.eu/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Paddle Agitator for Mixing of Viscoplastic Fluids and Pastes

Popis výsledku v původním jazyce

A new paddle mixer suitable for homogenisation of viscoplastic fluids and paste such as modern concrete mixture was developed to improve homogeneity of the product, which is vital for its mechanical properties. While mixing concentrated suspensions characterised by visco-plastic or pseudoplastic behaviour, there is a risk of non-existent flow in areas distant from the rotating mixing element caused by the low level of shear stress and associated high apparent viscosity. The paddle mixer design is aimed at achieving circulation throughout the whole volume and thus mitigating the problem of caverns and segregation caused by the effect of gravity. The performance of the paddle mixer was evaluated using homogenisation experiments at input power measurements at varying rotation speeds. The paddle mixer was tested and its geometry modified to achieve homogeneity throughout the whole volume.

Název v anglickém jazyce

Paddle Agitator for Mixing of Viscoplastic Fluids and Pastes

Popis výsledku anglicky

A new paddle mixer suitable for homogenisation of viscoplastic fluids and paste such as modern concrete mixture was developed to improve homogeneity of the product, which is vital for its mechanical properties. While mixing concentrated suspensions characterised by visco-plastic or pseudoplastic behaviour, there is a risk of non-existent flow in areas distant from the rotating mixing element caused by the low level of shear stress and associated high apparent viscosity. The paddle mixer design is aimed at achieving circulation throughout the whole volume and thus mitigating the problem of caverns and segregation caused by the effect of gravity. The performance of the paddle mixer was evaluated using homogenisation experiments at input power measurements at varying rotation speeds. The paddle mixer was tested and its geometry modified to achieve homogeneity throughout the whole volume.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/GA21-24070S" target="_blank" >GA21-24070S: Model segregace vláken v závislosti na reologických vlastnostech čerstvého HPC</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů