浮选过程差异性的气泡负载特性对比分析  

Comparison and Analysis of Bubble Load Characteristics in the Process of Flotation

作　　者：韩登峰[1] 史帅星[1] 吴峰[1] 陈飞飞 刘国蓉[1] 

机构地区：[1]北京矿冶研究总院,北矿机电科技有限责任公司,矿物加工科学与技术国家重点实验室,北京市高效节能矿冶技术装备工程技术研究中心,北京100160

出　　处：《有色金属（选矿部分）》2017年第B11期114-117,共4页Nonferrous Metals（Mineral Processing Section）

基　　金：国家自然科学基金资助项目（51604028、51574035）;北京矿冶研究总院科研基金项目（YJz201701）

摘　　要：介绍了气泡负载测量在矿物浮选过程评价中的意义。采用改进型的气泡负载测量装置在江西某铜矿粗选、扫选作业两台浮选机内进行气泡负载特性测量和评价。测试数据显示随着测量深度的降低，粗I-2浮选机内的气泡负载率在各深度层略有降低，在近液面处达7．5g／L，而扫I-2浮选机内，气泡负载率则降低明显，近液面处仅约3．5g／L。测试结果表明，气泡与矿物颗粒在粗I-2浮选机内粘附较为稳定；在扫I．2浮选机内粘附则不够稳定，在上升过程中存在明显脱落。最后针对测试结果给出了不同作业浮选动力学优化建议。The significance of bubble load measurement in the evaluation of mineral flotation process is introduced. Then, the improved bubble load measurement device is used to measure and evaluate the bubble load characteristics in two flotation machines in a copper plant of rougher and scavenger in Jiangxi Province. The test data show that the bubble load in the rougherI-2 flotation machine is slightly lower at each depth level and 7.5 g/L at the near surface as the depth of measurement decreases, while in the scavenger I-2 flotation machine, the bubble load decreased significantly, near the surface only about 3.5 g/L. The test results show that the adhesion between the bubbles and the mineral particles in the rougher I-2 flotation machine is relatively stable, but there is a significant loss in the scavenger I-2 flotation machine. Finally, the optimization suggestions of flotation dynamics for different operations are given for the test results.

关 键 词：浮选过程 气泡负载 测量分析 

分 类 号：TD923[矿业工程—选矿]