Numerical study of the effect of cylinder–to–cone ratio on the classification performance in hydrocyclones

IF 4.5 2区工程技术 Q2 ENGINEERING, CHEMICAL

Powder Technology Pub Date : 2025-02-02 DOI:10.1016/j.powtec.2025.120736

Dianyu E , Hongwei Hu , Cong Tan , Yuhao Zhang , Guangtai Xu , Jiaxin Cui , Ruiping Zou , Aibing Yu , Shibo Kuang

{"title":"Numerical study of the effect of cylinder–to–cone ratio on the classification performance in hydrocyclones","authors":"Dianyu E , Hongwei Hu , Cong Tan , Yuhao Zhang , Guangtai Xu , Jiaxin Cui , Ruiping Zou , Aibing Yu , Shibo Kuang","doi":"10.1016/j.powtec.2025.120736","DOIUrl":null,"url":null,"abstract":"<div><div>The separation space of hydrocyclone, including its cylindrical and conical sections, governs internal fluid dynamics and significantly affects classification performance. While the individual effects of these two sections are well–studied, the effects of cylinder–to–cone ratio (CCR) remain insufficiently explored. This study utilizes numerical simulations to assess the effects of different CCRs on hydrocyclone performance metrics, including classification performance, flow field characteristics, and volume fraction distributions across seven CCR configurations. The results show that as CCR increases from 1:9 to 9:1, the cut size increases from 16.4 μm to 30.4 μm, Ecart probable increases from 6.1 μm to 9.5 μm, the pressure drop decreases by 11 kPa, and the water split drops from 5.8% to 3.7%. Additionally, a smaller CCR enhances tangential velocity and pressure gradient, improves particle classification, stabilizes the air core, and reduces particle misplacement. These findings offer valuable insights into optimizing hydrocyclone design and classification performance to meet diverse application needs.</div></div>","PeriodicalId":407,"journal":{"name":"Powder Technology","volume":"454 ","pages":"Article 120736"},"PeriodicalIF":4.5000,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Powder Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0032591025001317","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The separation space of hydrocyclone, including its cylindrical and conical sections, governs internal fluid dynamics and significantly affects classification performance. While the individual effects of these two sections are well–studied, the effects of cylinder–to–cone ratio (CCR) remain insufficiently explored. This study utilizes numerical simulations to assess the effects of different CCRs on hydrocyclone performance metrics, including classification performance, flow field characteristics, and volume fraction distributions across seven CCR configurations. The results show that as CCR increases from 1:9 to 9:1, the cut size increases from 16.4 μm to 30.4 μm, Ecart probable increases from 6.1 μm to 9.5 μm, the pressure drop decreases by 11 kPa, and the water split drops from 5.8% to 3.7%. Additionally, a smaller CCR enhances tangential velocity and pressure gradient, improves particle classification, stabilizes the air core, and reduces particle misplacement. These findings offer valuable insights into optimizing hydrocyclone design and classification performance to meet diverse application needs.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Powder Technology 工程技术-工程：化工

CiteScore

9.90

自引率

15.40%

发文量

1047

审稿时长

46 days

期刊介绍： Powder Technology is an International Journal on the Science and Technology of Wet and Dry Particulate Systems. Powder Technology publishes papers on all aspects of the formation of particles and their characterisation and on the study of systems containing particulate solids. No limitation is imposed on the size of the particles, which may range from nanometre scale, as in pigments or aerosols, to that of mined or quarried materials. The following list of topics is not intended to be comprehensive, but rather to indicate typical subjects which fall within the scope of the journal's interests: Formation and synthesis of particles by precipitation and other methods. Modification of particles by agglomeration, coating, comminution and attrition. Characterisation of the size, shape, surface area, pore structure and strength of particles and agglomerates (including the origins and effects of inter particle forces). Packing, failure, flow and permeability of assemblies of particles. Particle-particle interactions and suspension rheology. Handling and processing operations such as slurry flow, fluidization, pneumatic conveying. Interactions between particles and their environment, including delivery of particulate products to the body. Applications of particle technology in production of pharmaceuticals, chemicals, foods, pigments, structural, and functional materials and in environmental and energy related matters. For materials-oriented contributions we are looking for articles revealing the effect of particle/powder characteristics (size, morphology and composition, in that order) on material performance or functionality and, ideally, comparison to any industrial standard.