An operational model for a spiral classifier

被引：10

作者：

Bazin, Claude ^{[1
]}

Sadeghi, Maryam ^{[1
]}

Renaud, Marilene ^{[2
]}

机构：

[1] Univ Laval, Dept Min Met & Mat Engn, Quebec City, PQ, Canada

[2] COREM, 1180 Rue Mineralurgie, Quebec City, PQ, Canada

来源：

MINERALS ENGINEERING | 2016年 / 91卷

关键词：

Iron ore; Hematite; Spiral concentrators; Partition curves; SIZE RECOVERY CURVES; PARTICLE SEPARATION; FLUID-FLOW; CONCENTRATORS; MINERALS;

D O I：

10.1016/j.mineng.2015.09.024

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Spirals are gravity concentrators used for the valorization of coal and heavy minerals. Coarse hematite iron ores in Canada are usually concentrated by spirals. Spirals classify the particles according to their size and specific gravity. Several mathematical models were proposed to simulate the operation of spirals using a balance between the various forces acting on particles. However few models provide a method to account for wash water addition and the opening of concentrate ports that are two strategic variables for the operation of spiral classifiers. This paper proposes a model to incorporate these variables in a simulation scheme and validates the model with pilot plant data. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：74 / 85

页数：12

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