矿石的高压电脉冲预处理技术研究进展——昆士兰大学JK矿物中心10余年成果回顾  

Progress on High Voltage Pulse Technology Used for Ore Pre-treatment——Overview of the Research Outcomes Made by the Julius Kruttschnitt Mineral Research Centre of the University of Queensland in the Past 10 Years

作　　者：施逢年[1] Shi Fengnian(Julius Kruttschnitt Mineral Research Centre,Sustainable Mineral Institute,The University of Queensland,Australia)

机构地区：[1]澳大利亚昆士兰大学可持续矿物学院JK矿物研究中心

出　　处：《金属矿山》2019年第5期1-8,共8页Metal Mine

基　　金：澳大利亚ARC Linkage(AMSRI-LP0667828)课题;ARC LIEF课题;澳大利亚研究生工业奖学金(APAI);昆士兰大学奖学金;中国国家留学基金管理委员会CSC奖学金;Newcrest Mining;Anglo American;Vale Exploration为JK矿物研究中心的高压电脉冲研究提供赞助和奖学金。

摘　　要：介绍了澳大利亚昆士兰大学JK矿物研究中心10余年来在高压电脉冲技术预处理矿石方面的研究进展。该团队没有采用传统的研究思路,将高压电脉冲作为碎磨矿石的工具,耗费大量电能将矿石破碎到微米级的粒度,而是用较小的高压电脉冲能耗来预处理矿石,改变矿石的可选性,以此提高整个选矿处理流程的生产效率和经济效益。目前研发出了3项高压电脉冲在选矿应用的新技术:高压电脉冲用于矿石的预富集,高压电脉冲用于降低矿石硬度、节省碎磨能耗和高压电脉冲用于改善矿物的单体解离。其中,高压电脉冲技术在含金含铜矿石的预富集中的应用属世界上首次发现,介绍此成果的论文获得了有国际影响力的2017年度CEEC科研奖章。This paper summarises the research progress made by the Julius Kruttschnitt Mineral Research Centre(JKMRC)in the past 10 years on High Voltage Pulse(HVP)technology for ore pre-treatment.The researchers at the JKMRC took a different approach to prior research in which HVP was utilised as a crusher to pulverise ore particles to micron sizes,which consumed an excessive amount of energy.The research team instead uses relatively low levels of HVP energy to enhance ore processability,aiming to improve the productivity and economic benefits in the downstream processing circuit.Three potential HVP applications for the mineral industry have been developed: HVP to enable pre-concentration of ore;HVP to pre-weaken and reduce downstream comminution requirements;and HVP to improve downstream mineral liberation.The technique using HVP to enable ore pre-concentration was discovered and developed first-time in the world.A paper on the opportunities and challenges of HVP to enable gold/copper ore pre-concentration was awarded the internationally recognised 2017 CEEC Medal in the research category.

关 键 词：高压电脉冲 矿石预处理 能量效率 预富集 矿石硬度 单体解离度 

分 类 号：TD921[矿业工程—选矿]