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Interaction and influence of a flow field and particleboard particles in an airflow forming machine with a coupled Euler-DPM model

Particleboards are widely used in the artificial board market, which can be constructed from a variety of raw materials and require small amounts of energy to be produced. In the particleboard production process, forming machines play an important role as the key equipment for achieving continuous p...

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Detalles Bibliográficos
Autores principales: Zhang, Jian, Chen, Qing, Shi, Minghong, Zhou, Hongping, Xu, Linyun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8211206/
https://www.ncbi.nlm.nih.gov/pubmed/34138940
http://dx.doi.org/10.1371/journal.pone.0253311
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author Zhang, Jian
Chen, Qing
Shi, Minghong
Zhou, Hongping
Xu, Linyun
author_facet Zhang, Jian
Chen, Qing
Shi, Minghong
Zhou, Hongping
Xu, Linyun
author_sort Zhang, Jian
collection PubMed
description Particleboards are widely used in the artificial board market, which can be constructed from a variety of raw materials and require small amounts of energy to be produced. In the particleboard production process, forming machines play an important role as the key equipment for achieving continuous production. In recent years, airflow forming machines have received increasing attention in particleboard production lines because of their strong separation ability and low price. However, the internal flow field is complex and difficult to control, which affects the surface quality and strength of the particleboard. The most pressing technical difficulty is controlling the flow field characteristics of the airflow paver. At present, the research on this subject is conducted primarily through repeated experiments, which entail long research periods and high processing costs. To reduce human and financial costs, in this study, Computational Fluid Dynamics (CFD) is employed to investigate the flow field and the gas-solid two-phase flow field coupled with particle movement of an airflow forming machine. The accuracy of the calculation model is verified by comparing characteristic point velocities obtained from experimental analysis and a simulation. The simulation results show that in practical production, the frequency of a negative pressure fan should be greater than 27 Hz. It is necessary to set the shoulder properly, and the slab smoothness can be improved by moving the shoulder back on the premise of meeting the strength requirements of the box. The distance between the shoulders of the box body should be less than 2570 mm, and particles with uniform diameter should be added to the paving box to reduce the turbulence effect, improve the quality of particle forming and provide actual particleboard production with a solid theoretical foundation.
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spelling pubmed-82112062021-06-29 Interaction and influence of a flow field and particleboard particles in an airflow forming machine with a coupled Euler-DPM model Zhang, Jian Chen, Qing Shi, Minghong Zhou, Hongping Xu, Linyun PLoS One Research Article Particleboards are widely used in the artificial board market, which can be constructed from a variety of raw materials and require small amounts of energy to be produced. In the particleboard production process, forming machines play an important role as the key equipment for achieving continuous production. In recent years, airflow forming machines have received increasing attention in particleboard production lines because of their strong separation ability and low price. However, the internal flow field is complex and difficult to control, which affects the surface quality and strength of the particleboard. The most pressing technical difficulty is controlling the flow field characteristics of the airflow paver. At present, the research on this subject is conducted primarily through repeated experiments, which entail long research periods and high processing costs. To reduce human and financial costs, in this study, Computational Fluid Dynamics (CFD) is employed to investigate the flow field and the gas-solid two-phase flow field coupled with particle movement of an airflow forming machine. The accuracy of the calculation model is verified by comparing characteristic point velocities obtained from experimental analysis and a simulation. The simulation results show that in practical production, the frequency of a negative pressure fan should be greater than 27 Hz. It is necessary to set the shoulder properly, and the slab smoothness can be improved by moving the shoulder back on the premise of meeting the strength requirements of the box. The distance between the shoulders of the box body should be less than 2570 mm, and particles with uniform diameter should be added to the paving box to reduce the turbulence effect, improve the quality of particle forming and provide actual particleboard production with a solid theoretical foundation. Public Library of Science 2021-06-17 /pmc/articles/PMC8211206/ /pubmed/34138940 http://dx.doi.org/10.1371/journal.pone.0253311 Text en © 2021 Zhang et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Zhang, Jian
Chen, Qing
Shi, Minghong
Zhou, Hongping
Xu, Linyun
Interaction and influence of a flow field and particleboard particles in an airflow forming machine with a coupled Euler-DPM model
title Interaction and influence of a flow field and particleboard particles in an airflow forming machine with a coupled Euler-DPM model
title_full Interaction and influence of a flow field and particleboard particles in an airflow forming machine with a coupled Euler-DPM model
title_fullStr Interaction and influence of a flow field and particleboard particles in an airflow forming machine with a coupled Euler-DPM model
title_full_unstemmed Interaction and influence of a flow field and particleboard particles in an airflow forming machine with a coupled Euler-DPM model
title_short Interaction and influence of a flow field and particleboard particles in an airflow forming machine with a coupled Euler-DPM model
title_sort interaction and influence of a flow field and particleboard particles in an airflow forming machine with a coupled euler-dpm model
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8211206/
https://www.ncbi.nlm.nih.gov/pubmed/34138940
http://dx.doi.org/10.1371/journal.pone.0253311
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