Development of an experimental methodology for sulphide self-heating studies and the self-heating tendency of Vale's Voisey's Bay Concentrator products

被引：9

作者：

Dai, Zongfu ^{[1
]}

机构：

[1] VBMTEC, 2060 Flavelle Blvd, Mississauga, ON L5K 1Z9, Canada

来源：

MINERALS ENGINEERING | 2016年 / 92卷

关键词：

Sulphide materials; Self-heating; Method development; Mitigation; Moisture content; Compaction; COMPOST;

D O I：

10.1016/j.mineng.2016.03.006

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Moist sulphide ores, concentrates and tails tend to self-heat under favourable conditions. Several serious incidents have been reported as a result of sulphide self-heating occurrences in mining, mineral processing and smelting operations. An experimental methodology has been developed to evaluate the rate of self-heating of sulphide materials, and to study factors that may be used to mitigate sulphide self-heating. Factors studied included moisture content, degree of compaction, air humidity, availability of oxygen by varying the air flowrate, direction of air flow within the sample bed and purging with nitrogen gas. High degree of compaction was shown to be the most effective and practical means of mitigating sulphide self-heating. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：125 / 133

页数：9

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