新型微细粒重选机在铜铅分离工艺中的应用

现代矿业 ›› 2026, Vol. 42 ›› Issue (02): 90-94.

新型微细粒重选机在铜铅分离工艺中的应用

韩远燕^1，2，3董华生⁴江旭^1，2，3 周浩^1，2，3 赵加立⁴

1. 长沙矿山研究院有限责任公司；2. 国家战略性稀有金属矿产高效开发技术创新中心； 3. 湖南省矿山固废综合利用工程技术研究中心；4. 新巴尔虎右旗荣达矿业有限责任公司

出版日期:2026-02-25 发布日期:2026-03-11

Study on Application of a New Type of Ultrafine Particle Gravity Separator in Copper and Lead Separation Process

1. Changsha Mining Research Institute Co.，Ltd.；2. National Technological Innovation Center for Efficient Development of Strategic Rare Metal Mineral Resources；3. Hunan Provincial Engineering Technology Research Center for Comprehensive Utilization of Mine Solid Waste； 4 .New Barag West County Rongda Mining Co.，Ltd.

Online:2026-02-25 Published:2026-03-11

摘要/Abstract

摘要： 内蒙古某低品位铜铅锌多金属矿含铜 0.08%，含铅 2.20%，含锌 2.40%。针对铜铅混合精矿铜铅比低、粒度微细、全回水生产残留药剂干扰大、单一浮选指标不稳定等技术难题，研发了新型微细粒重选机。通过新型微细粒重选机预选，可实现铜铅矿物的高效分离，预先获得含铅 68.21%、含铜 0.28% 的合格铅精矿，并提升了后续浮选给矿铜铅比。与矿泥摇床、螺旋溜槽相比，新型重选机分选精度高，铜在铅精矿中损失率仅 10.62%。高梯度磁选—浮选联合流程、重选—浮选联合流程与单一浮选流程相比，重选—浮选联合流程获得的铜精矿铜回收率显著提高。新型微细粒重选—浮选联合流程工业应用结果表明，新工艺使铜精矿品位由原工艺的 18.27% 提升至 25.45%，铅在铜精矿中损失率降低了 1.62 个百分点，药剂成本降低 54%，实现了铜铅深度分离与生产指标的稳定提升，为干旱缺水地区同类矿石的选矿提供了有效技术方案。

关键词: 新型微细粒重选机, 铜铅分离, 抑铅浮铜

Abstract: A low-grade copper-lead-zinc polymetallic ore in Inner Mongolia contains 0.08% copper， 2.20% lead，and 2.40% zinc. To address technical challenges such as the low copper-to-lead ratio in cop⁃ per-lead mixed concentrate，ultrafine particle size，significant interference from residual reagents in full re⁃ cycled water production，and unstable performance of single flotation processes，a new type of ultrafine parti⁃ cle gravity separator has been developed. Through pre-concentration with this new gravity separator，effi⁃ cient separation of copper and lead minerals can be achieved. A qualified lead concentrate containing 68.21% lead and 0.28% copper is obtained in advance，thereby improving the copper-to-lead ratio of the feed for subsequent flotation. Compared to ore slime shaking tables and spiral chutes，the new gravity sepa⁃ rator offers higher separation precision，with a copper loss rate of only 10.62% in the lead concentrate. When comparing the combined high-gradient magnetic separation-flotation process，the combined gravity separa⁃ tion-flotation process，and the single flotation process，the copper recovery rate in the copper concentrate obtained from the combined gravity separation-flotation process is significantly higher. Industrial applica⁃ tion results of the new ultrafine particle gravity separation-flotation combined process show that the new technology increases the copper concentrate grade from 18.27% in the original process to 25.45%，reduces the loss rate of lead in the copper concentrate by 1.62 percentage points，and lowers reagent costs by 54%.This achieves deep separation of copper and lead while steadily improving production indicators，providing
an effective technical solution for the beneficiation of similar ores in arid and water-deficient regions.

Key words: a new type of ultrafine particle gravity separator, separation of copper and lead, lead sup? pression and copper float

韩远燕, 董华生, 江旭, 周浩, 赵加立. 新型微细粒重选机在铜铅分离工艺中的应用[J]. 现代矿业, 2026, 42(02): 90-94.

HAN Yuanyan, DONG Huasheng JIANG Xu, ZHOU Hao, ZHAO Jiali. Study on Application of a New Type of Ultrafine Particle Gravity Separator in Copper and Lead Separation Process[J]. Modern Mining, 2026, 42(02): 90-94.

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