Magnetic spirals: an innovative approach for enhancing the separation of ferro- and para-magnetic particles

IF 0.9 Q3 MINING & MINERAL PROCESSING Mineral Processing and Extractive Metallurgy-Transactions of the Institutions of Mining and Metallurgy Pub Date : 2022-04-08 DOI:10.1080/25726641.2022.2050490

H. Dehghani, Mohammad Mehdi Salarirad, A. Abdolahzadeh

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Abstract

ABSTRACT Spirals are one of the most widely used beneficiation equipment in mineral processing industry. The prerequisite to improve spirals' performance is to understand the forces that affect valuable and gangue minerals' separation. This paper investigates how magnetic properties of particles can be used to achieve a sharper separation of magnetic and non-magnetic particles in spirals. To this end, separation behavior of a synthetic mixed magnetite and quartz particles in the presence and absence of magnetic field was investigated via analyzing variations in the forces that affect particles’ separation in a spiral. Changes in Zero force line were considered as the reference point in the studies. In this regard an innovative magnetic-spiral was designed and fabricated. A magnetic force was added to separation process of the selected spiral. This, increased fine particles grade and recovery up to 8.5% and 7.5% respectively.

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磁性螺旋：增强铁磁性和准磁性颗粒分离的创新方法

Spirals是选矿行业中应用最广泛的选矿设备之一。提高螺旋体性能的前提是了解影响贵重矿物和脉石矿物分离的力。本文研究了如何利用粒子的磁性来实现螺旋中磁性粒子和非磁性粒子的更清晰分离。为此，通过分析影响颗粒在螺旋中分离的力的变化，研究了合成混合磁铁矿和石英颗粒在存在和不存在磁场的情况下的分离行为。零力线的变化被认为是研究中的参考点。在这方面，设计并制造了一种创新的磁性螺旋。在所选螺旋的分离过程中加入磁力。这样，细颗粒的品位和回收率分别提高到8.5%和7.5%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Mineral Processing and Extractive Metallurgy-Transactions of the Institutions of Mining and Metallurgy MINING & MINERAL PROCESSING-

CiteScore

3.50

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0.00%

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