海南某选矿厂跳汰选矿工艺优化研究  

Optimization study of jigging ore-dressing process for an ore-dressing plant in Hainan

作　　者：朱智超 袁康 兰舟[1] 张少平[1] 王梓力 黄正均 郭国龙 Zhu Zhichao;Yuan Kang;Lan Zhou;Zhang Shaoping;Wang Zili;Huang Zhengjun;Guo Guolong(Hainan Mining Co.,Ltd.;School of Civil and Resource Engineering,University of Science and Technology Beijing)

机构地区：[1]海南矿业股份有限公司 [2]北京科技大学土木与资源工程学院

出　　处：《黄金》2024年第4期44-47,共4页Gold

基　　金：国家自然科学基金项目(51674018)。

摘　　要：以海南某选矿厂跳汰系统为研究对象,针对入选矿石品位变化造成的跳汰产品指标下降问题,通过物相分析、取样调查等方法,从入选矿石粒度及品位、电子皮带秤量程系数、各粒级产品品位等方面展开研究,提出针对性的跳汰选矿工艺优化措施。通过控制入选矿石粒度、调整跳汰系统参数及选用0~75 mm粒级矿石取样等方法优化了工艺流程;各样品实测质量与电子皮带秤读数误差较大,粉矿样品质量误差约16%,优化电子皮带秤量程系数后满足生产要求;试验样与生产样取样结果表明,实际跳汰原矿、中矿及粉矿品位比生产样品位低,实际跳汰尾矿品位比生产样品位高,说明生产取样样品代表性不足,应调整为断面取样方法。研究结果对跳汰选矿工艺优化具有重要参考价值。Taking the jigging system of an ore-dressing plant in Hainan as the research object,this study addresses the issue of decreased jigging product indicators caused by variations in ore grade.Through physical phase analysis,sampling surveys,and other methods,research was conducted on the granularity and grade of the selected ore,the coefficient of the electronic belt scale range,and the grade of products at each particle size,proposing targeted optimization measures for jigging ore-dressing process.The process flow was optimized by controlling the input ore granularity,adjusting jigging parameters,and selecting ore samples ranging from 0 to 75 mm.Significant errors were observed between the measured weights of samples and the readings of the electronic belt scale,with a weight error of up to 16%for samples.After optimizing the coefficient of the electronic belt scale range,the production requirements were met.Comparison between test samples and production samples showed that the actual grade of jigging crude ore,middlings,and powdered ores was lower than that of production samples,while the actual grade of jigging tailings was higher,indicating inadequate representativeness of production sampling,which should be adjusted to sectional sampling.The research results have important reference value for optimizing jigging ore-dressing processes.

关 键 词：跳汰选矿 工艺优化 矿石粒度 品位 重选 

分 类 号：TD455.1[矿业工程—矿山机电]