东鞍山磁选混合精矿浮选选铁试验

现代矿业 ›› 2023, Vol. 39 ›› Issue (02): 9-11.

• 铁矿石加工与铁回收专栏 • 上一篇下一篇

东鞍山磁选混合精矿浮选选铁试验

任鹏园¹ 侯英^1,2赵通林^{1, 2} 林松¹

1. 辽宁科技大学矿业工程学院；2. 辽宁省金属矿产资源高效采选与利用工程技术研究中心

出版日期:2023-02-25 发布日期:2023-05-09
基金资助:
辽宁省教育厅项目（编号：2019LNQN09）；辽宁科技大学大学生创新创业训练计划项目（编号：S202110146006S）

Experiment on Flotation for Iron-selection from Mixed Concentrate after Magnetic Separation in Donganshan

REN Pengyuan¹ HOU Ying^1,2 ZHAO Tonglin^1,2 LIN Song¹

1. School of Mining Engineering, University of Science and Technology Liaoning; 2. Engineering and Tech⁃ nology Research Center of High-efficiency Mining-processing and Utilization of Metal Mineral Resources, Liaoning Province

Online:2023-02-25 Published:2023-05-09

摘要/Abstract

摘要： 东鞍山烧结厂的弱磁选、强磁选混合精矿铁品位为45.48%，其中的主要矿物为磁铁矿、赤铁矿、菱铁矿，石英、绿泥石等少量。为获得较高品位的铁精矿，进行了分步浮选试验。结果表明，在正浮选淀粉用量800 g/t、TD-Ⅱ用量200 g/t，反浮选粗选淀粉用量500 g/t、氧化钙用量 800 g/t、TD-Ⅱ用量800 g/t，反浮选精选TD-Ⅱ用量400 g/t的情况下，试样采用1 次正浮选，1 粗1 精3 扫、中矿顺序返回流程处理，最终获得品位65.58%、回收率71.97%的精矿。

关键词: 磁选混合精矿, 分步浮选, 淀粉, 氧化钙

Abstract: The iron grade of the mixed concentrate after low-intensity magnetic separation or high-in⁃tensity magnetic separation in Donganshan sintering plant is 45.48%, in which the main minerals are mag⁃ netite, hematite and siderite, along with few quartz and chlorite. In order to obtain higher grade iron concentrate, step-by-step flotation test was carried out. The results showed that under the conditions of 800 g/t for starch and 200 g/t for TD-Ⅱ in direct flotation, 500 g/t for starch and 800 g/t for calcium oxide and 800 g/t for TD-Ⅱin reverse flotation during coarsing, and 400 g/t for TD-Ⅱ in reverse flotation during cleaning, the sample is subjected to once direct flotation. A concentrate with grade of 65.58% and recovery rate of 71.97% was obtained with one roughing, one cleaning, three scavenging and middling ore return in sequence.

Key words: mixed concentrate after magnetic separation, step-by-step flotation, starch, calcium oxide

任鹏园, 侯英, 赵通林, 林松. 东鞍山磁选混合精矿浮选选铁试验[J]. 现代矿业, 2023, 39(02): 9-11.

REN Pengyuan, HOU Ying, ZHAO Tonglin, LIN Song. Experiment on Flotation for Iron-selection from Mixed Concentrate after Magnetic Separation in Donganshan[J]. Modern Mining, 2023, 39(02): 9-11.

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东鞍山磁选混合精矿浮选选铁试验

Experiment on Flotation for Iron-selection from Mixed Concentrate after Magnetic Separation in Donganshan

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