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Theoretical Studies of the Interaction between Screw Surface and Material in the Mixer

Mixing is one of the most commonly used processes in food, animal feed, chemical, cosmetic, etc., industries. It is supposed to provide high-quality homogenous, nutritious mixtures. To provide appropriate mixing of materials while maintaining the process high efficiency and low energy consumption it...

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Autores principales: Marczuk, Andrzej, Sysuev, Vasily, Aleshkin, Alexey, Savinykh, Petr, Turubanov, Nikolay, Tomporowski, Andrzej
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7922828/
https://www.ncbi.nlm.nih.gov/pubmed/33670665
http://dx.doi.org/10.3390/ma14040962
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author Marczuk, Andrzej
Sysuev, Vasily
Aleshkin, Alexey
Savinykh, Petr
Turubanov, Nikolay
Tomporowski, Andrzej
author_facet Marczuk, Andrzej
Sysuev, Vasily
Aleshkin, Alexey
Savinykh, Petr
Turubanov, Nikolay
Tomporowski, Andrzej
author_sort Marczuk, Andrzej
collection PubMed
description Mixing is one of the most commonly used processes in food, animal feed, chemical, cosmetic, etc., industries. It is supposed to provide high-quality homogenous, nutritious mixtures. To provide appropriate mixing of materials while maintaining the process high efficiency and low energy consumption it is crucial to explore and describe the material flow caused by the movement of mixing elements and the contact between particles. The process of mixing is also affected by structural features of the machine components and the mixing chamber, speed of mixing, and properties of the mixed materials, such as the size of particles, moisture, friction coefficients. Thus, modeling of the phenomena that accompany the process of mixing using the above-listed parameters is indispensable for appropriate implementation of the process. The paper provides theoretical power calculations that take into account the material speed change, the impact of the material friction coefficient on the screw steel surface and the impact of the friction coefficient on the material, taking into account the loading height of the mixing chamber and the chamber loading value. Dependencies between the mixer power and the product degree of fineness, rotational speed of screw friction coefficients, the number of windings per length unit, and width of the screw tape have been presented on the basis of a developed model. It has been found that power increases along with an increase in the value of these parameters. Verification of the theoretical model indicated consistence of the predicted power demand with the power demand determined in tests performed on a real object for values of the assumed, effective loading, which was 65–75%.
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spelling pubmed-79228282021-03-03 Theoretical Studies of the Interaction between Screw Surface and Material in the Mixer Marczuk, Andrzej Sysuev, Vasily Aleshkin, Alexey Savinykh, Petr Turubanov, Nikolay Tomporowski, Andrzej Materials (Basel) Article Mixing is one of the most commonly used processes in food, animal feed, chemical, cosmetic, etc., industries. It is supposed to provide high-quality homogenous, nutritious mixtures. To provide appropriate mixing of materials while maintaining the process high efficiency and low energy consumption it is crucial to explore and describe the material flow caused by the movement of mixing elements and the contact between particles. The process of mixing is also affected by structural features of the machine components and the mixing chamber, speed of mixing, and properties of the mixed materials, such as the size of particles, moisture, friction coefficients. Thus, modeling of the phenomena that accompany the process of mixing using the above-listed parameters is indispensable for appropriate implementation of the process. The paper provides theoretical power calculations that take into account the material speed change, the impact of the material friction coefficient on the screw steel surface and the impact of the friction coefficient on the material, taking into account the loading height of the mixing chamber and the chamber loading value. Dependencies between the mixer power and the product degree of fineness, rotational speed of screw friction coefficients, the number of windings per length unit, and width of the screw tape have been presented on the basis of a developed model. It has been found that power increases along with an increase in the value of these parameters. Verification of the theoretical model indicated consistence of the predicted power demand with the power demand determined in tests performed on a real object for values of the assumed, effective loading, which was 65–75%. MDPI 2021-02-18 /pmc/articles/PMC7922828/ /pubmed/33670665 http://dx.doi.org/10.3390/ma14040962 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Marczuk, Andrzej
Sysuev, Vasily
Aleshkin, Alexey
Savinykh, Petr
Turubanov, Nikolay
Tomporowski, Andrzej
Theoretical Studies of the Interaction between Screw Surface and Material in the Mixer
title Theoretical Studies of the Interaction between Screw Surface and Material in the Mixer
title_full Theoretical Studies of the Interaction between Screw Surface and Material in the Mixer
title_fullStr Theoretical Studies of the Interaction between Screw Surface and Material in the Mixer
title_full_unstemmed Theoretical Studies of the Interaction between Screw Surface and Material in the Mixer
title_short Theoretical Studies of the Interaction between Screw Surface and Material in the Mixer
title_sort theoretical studies of the interaction between screw surface and material in the mixer
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7922828/
https://www.ncbi.nlm.nih.gov/pubmed/33670665
http://dx.doi.org/10.3390/ma14040962
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