Separating efficiency of ferromagnetic particles and principle of low-intensity dry magnetic separator under different air supply modes: Based on multi-physical modeling

被引：9

作者：

Liu, Jianjun ^{[1
]}

Xie, Shunping ^{[2
]}

Li, Xudong ^{[2
]}

Lu, Dongfang ^{[1
,2
]}

Wang, Huan ^{[1
]}

Yao, Qiang ^{[1
]}

Yang, Xiaofeng ^{[1
]}

Fu, Yafeng ^{[1
]}

机构：

[1] Ansteel Beijing Res Inst Co Ltd, Beijing 102200, Peoples R China

[2] Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China

来源：

POWDER TECHNOLOGY | 2023年 / 415卷

基金：

中国国家自然科学基金;

关键词：

Dry magnetic separation; Air supply mode; Separating efficiency; Multi -physical fields; Modeling and simulation; OPTIMIZATION; FLOW;

D O I：

10.1016/j.powtec.2022.118155

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Introducing airflow into the low-intensity dry magnetic separator (LIDMS) is an effective means to improve the separating efficiency of ferromagnetic particles under dry conditions. In this study, a multi-physical coupling model was established to compare the separating performance of LIDMS under four typical air supply modes. The result shows that Mode D can maximize the competing force along the normal direction of the drum due to the vertically outward air supply mode, and its separating performance is the best, especially for the particles with a fine diameter. The mechanism of airflow under different modes which enhances the LIDMS is expounded by analyzing the characteristics of the magnetic field and the flow field and calculating the forces on particles with various properties. We expect that this study could provide a reference for the dry separation of magnetic minerals and the development or optimization of LIDMS under airflow conditions.

引用

页数：14

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