Differential classification of dense material in a three-product cyclone

被引：37

作者：

Mainza, A ^{[1
]}

Powell, MS

Knopjes, B

机构：

[1] Univ Cape Town, Mineral Proc Res Unit, Dept Chem Engn, ZA-7701 Cape Town, South Africa

[2] Lonmin Platinum Ltd, ZA-0284 Marikana, South Africa

来源：

MINERALS ENGINEERING | 2004年 / 17卷 / 05期

关键词：

classification; hydrocyclones; particle size;

D O I：

10.1016/j.mineng.2004.01.023

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A hydrocyclone with two concentric vortex finders, named the three-product cyclone, has been successfully tested in the Platinum industry for classifying UG2 ore which contains a high density chromite and a low density PGM carrying silica component. The low density silica reports to the overflow even when not sufficiently fine enough for flotation, which results in loss of recovery through over-size silica component material in the float feed. Results from industrial plant trials conducted using a 600 mm diameter three-product cyclone are presented. The three-product cyclone produced a middlings product containing the majority of the oversize silica that would normally report to the overflow. The middlings from the three-product cyclone represents a small percentage of the total cyclone feed and can be treated separately by fine screening to return the coarse silica to the mill for further grinding. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：573 / 579

页数：7