|
| 铅锌分离过程中粒度对银导向回收影响的模拟计算 |
| Simulation Calculation of the Effects of Particle Size on the Directional Recovery of Silver in the Flotation Separation of Lead-Zinc |
| Received:August 20, 2020 |
| DOI： |
| 中文关键词: 浮选动力学 BP人工神经网络 粒级 分离效率 银的导向回收 |
| 英文关键词: flotation kinetic BP neural network particle size separation efficiency directional recovery of silver |
| 基金项目:广东省科学院高端领军人才培育培养资助专项项目(No.2017GDASCX-0301)；广东省科技计划项目(No. 2017B030314046) |
| Author Name | Affiliation | E-mail | | RAN Jin-cheng | Institute of Resources Comprehensive Utilization, Guangdong Academy of Sciences,State Key Laboratory of Rare Metals Separation and Comprehensive Utilization, Guangdong ProvincialKey Laboratory of Development and Comprehensive Utilization of Mineral Resources, Guangzhou 510650, China | jinchengran@163.com | | QIU Xian-yang | Institute of Resources Comprehensive Utilization, Guangdong Academy of Sciences,State Key Laboratory of Rare Metals Separation and Comprehensive Utilization, Guangdong ProvincialKey Laboratory of Development and Comprehensive Utilization of Mineral Resources, Guangzhou 510650, China | qxyysy@163.com |
|
| Hits: 1014 |
| Download times: 605 |
| 中文摘要: |
| 采用经典一阶浮选动力学模型对矿物浮选回收率及分离效率进行了拟合计算，研究矿石粒度对铅锌分离过程中铅、银和锌的浮选行为的影响。建立了BP人工神经网络模型，预测平均给矿粒度对矿物回收率及分离效率的影响。结果表明，中等粒级(-74~+20 μm)下铅和银的浮选回收率最高，而微细粒级锌夹带严重，3种矿物的浮选速率均随矿石粒度的减小而减小；-105~+20 μm粒级下矿物的分离效率最高，过粗或过细均不利于矿物的浮选分离。BP-ANN预测结果表明，该矿石的最佳平均给料粒度为26~94 μm；银具有良好的铅依存性，通过添加锌抑制剂ZCY，配合使用对银矿物有良好选择性的捕收剂DA-1，可以实现银在铅锌分离中的导向回收。 |
| 英文摘要: |
| The classical first-order flotation kinetic model was used to fit the recovery and separation efficiency of mineral floatation, and the influence of mineral particle size on the floatation behavior of lead, silver and zinc during the separation of lead and zinc was studied. BP artificial neural network model was established to predict the effects of mean feed size on mineral recovery and separation efficiency. The results show that the floatation rate of lead and silver is the highest in the medium size (-74~+20 μm), while the fine-grained zinc is severely entrained. The flotation rates of the three minerals all decrease with the decrease of the mineral particle size. The separation efficiency of minerals is the highest under the particle size of -105~ +20 μm minerals, and too coarse or too fine is not conducive to the flotation separation of minerals. BP-ANN prediction results show that the best average feed size of this ore is 26~94 μm. Silver mineral has similar flotation performance to that of lead mineral. The oriented recovery of silver in lead-zinc separation can be realized by using the zinc depressor ZCY and the collector DA-1 with good selectivity to silver minerals. |
|
View Full Text
View/Add Comment Download reader |
| Close |