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Application of Enhanced Gravity Separators for Fine Particle Processing: An Overview
Journal of Sustainable Metallurgy ( IF 2.4 ) Pub Date : 2021-03-01 , DOI: 10.1007/s40831-021-00343-5
Aryasuta Nayak , M. S. Jena , N. R. Mandre

Abstract

Beneficiation of low-grade ore is of critical importance in order to meet the growing demand for coal and mineral industries. But, low-grade ores require fine grinding to obtain the desired liberation of valuable minerals. As a result, production of fine particles makes the beneficiation process difficult through conventional gravity separators. Hence, alternative beneficiation techniques are being investigated for upgradation of metal values from low-grade ores. The gravitational force effecting the separation is replaced by the centrifugal force to usher in enhanced gravity separators. The objective of the present paper is to summarize the applicability aspect of enhanced gravity separators for different mineral systems including non-ferrous, precious, ferrous, and industrial minerals. These mineral systems include run off mine ore, secondary products like tailings and plant slags, etc. For this purpose, the design, operational features, types, and separation mechanism of enhanced gravity separators, such as Falcon concentrator, Knelson concentrator, multi-gravity separator (MGS), and Kelsey Jig, are discussed. Based on our review, research scope and future possibilities of enhanced gravity separators are also proposed.

Graphical Abstract



中文翻译:

增强型重力分离器在细颗粒处理中的应用:概述

摘要

为了满足对煤炭和矿产工业不断增长的需求,低品位矿石的选矿至关重要。但是,低品位矿石需要精细研磨才能获得所需的有价值的矿物释放。结果,细颗粒的产生使得通过常规重力分离器的选矿过程变得困难。因此,正在研究替代选矿技术,以提高低品位矿石的金属价值。进行分离的重力由离心力代替,以引入增强的重力分离器。本文的目的是总结增强型重力分离器在不同矿物系统(包括有色金属,贵重金属,黑色金属和工业矿物)中的适用性。这些矿物系统包括流失的矿砂,为此,我们使用了Falcon选矿机,Knelson选矿机,多重力选矿机(MGS)和Kelsey跳汰机等增强型重力选矿机的设计,操作特性,类型和分离机理,讨论。根据我们的评论,还提出了增强重力分离器的研究范围和未来的可能性。

图形概要

更新日期:2021-03-01
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