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Analysis of gas–solid two-phase flow and structure optimization of mobile shot blasting machine recovery device
To address the problem of low efficiency of recycling process waste by gas–solid two-phase flow of the shot blasting machine recycling device, a method and structure by increasing the negative pressure value and optimizing the outlet pipe position are proposed. Computational fluid dynamics (CFD), di...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9789109/ https://www.ncbi.nlm.nih.gov/pubmed/36564462 http://dx.doi.org/10.1038/s41598-022-26481-8 |
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author | Zhang, Yinhang Fu, Xiuli Men, Xiuhua Pan, Yongzhi Zhang, Tianyi Jiang, Zhenfeng |
author_facet | Zhang, Yinhang Fu, Xiuli Men, Xiuhua Pan, Yongzhi Zhang, Tianyi Jiang, Zhenfeng |
author_sort | Zhang, Yinhang |
collection | PubMed |
description | To address the problem of low efficiency of recycling process waste by gas–solid two-phase flow of the shot blasting machine recycling device, a method and structure by increasing the negative pressure value and optimizing the outlet pipe position are proposed. Computational fluid dynamics (CFD), discrete element method (DEM) and discrete phase model (DPM) were used to study the waste recovery efficiency at different pressure outlet conditions and outlet pipe locations. The validity of the model was verified by velocity tests at the outlet and inlet compared with simulations. The effect of particle size and particle generation rate on solid particle recovery efficiency was further investigated by analyzing the flow field distribution of the recovery unit. The results show that the maximum velocity of the gas phase in the recovery device increases with the increase of the absolute value of the outlet pressure, when the outlet pressure is -6500 Pa, the maximum velocity is 67.59 m/s. When the absolute value of the outlet pressure is greater than 6000 Pa, a small amount of steel shot particles is discharged from the recovery bin under the action of the outlet pressure, resulting in the loss of steel shot particles. After the outlet pipe position optimization, the steel shot particle recovery efficiency increased by 10% and the waste particle recovery efficiency increased by 18.9%. |
format | Online Article Text |
id | pubmed-9789109 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-97891092022-12-25 Analysis of gas–solid two-phase flow and structure optimization of mobile shot blasting machine recovery device Zhang, Yinhang Fu, Xiuli Men, Xiuhua Pan, Yongzhi Zhang, Tianyi Jiang, Zhenfeng Sci Rep Article To address the problem of low efficiency of recycling process waste by gas–solid two-phase flow of the shot blasting machine recycling device, a method and structure by increasing the negative pressure value and optimizing the outlet pipe position are proposed. Computational fluid dynamics (CFD), discrete element method (DEM) and discrete phase model (DPM) were used to study the waste recovery efficiency at different pressure outlet conditions and outlet pipe locations. The validity of the model was verified by velocity tests at the outlet and inlet compared with simulations. The effect of particle size and particle generation rate on solid particle recovery efficiency was further investigated by analyzing the flow field distribution of the recovery unit. The results show that the maximum velocity of the gas phase in the recovery device increases with the increase of the absolute value of the outlet pressure, when the outlet pressure is -6500 Pa, the maximum velocity is 67.59 m/s. When the absolute value of the outlet pressure is greater than 6000 Pa, a small amount of steel shot particles is discharged from the recovery bin under the action of the outlet pressure, resulting in the loss of steel shot particles. After the outlet pipe position optimization, the steel shot particle recovery efficiency increased by 10% and the waste particle recovery efficiency increased by 18.9%. Nature Publishing Group UK 2022-12-23 /pmc/articles/PMC9789109/ /pubmed/36564462 http://dx.doi.org/10.1038/s41598-022-26481-8 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Zhang, Yinhang Fu, Xiuli Men, Xiuhua Pan, Yongzhi Zhang, Tianyi Jiang, Zhenfeng Analysis of gas–solid two-phase flow and structure optimization of mobile shot blasting machine recovery device |
title | Analysis of gas–solid two-phase flow and structure optimization of mobile shot blasting machine recovery device |
title_full | Analysis of gas–solid two-phase flow and structure optimization of mobile shot blasting machine recovery device |
title_fullStr | Analysis of gas–solid two-phase flow and structure optimization of mobile shot blasting machine recovery device |
title_full_unstemmed | Analysis of gas–solid two-phase flow and structure optimization of mobile shot blasting machine recovery device |
title_short | Analysis of gas–solid two-phase flow and structure optimization of mobile shot blasting machine recovery device |
title_sort | analysis of gas–solid two-phase flow and structure optimization of mobile shot blasting machine recovery device |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9789109/ https://www.ncbi.nlm.nih.gov/pubmed/36564462 http://dx.doi.org/10.1038/s41598-022-26481-8 |
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