陕西某金矿浮选工艺流程考查及优化措施研究

为了解决陕西某金矿生产中存在的浮选尾矿品位高、浮选回收率偏低的难题,对其磨矿作业和浮选作业进行了流程考查及工艺优化措施分析。流程考查结果表明当前生产中存在磨矿效率和分级效率低、球磨机钢球充填率和分级返砂比严重不足、浮选矿浆浓度较高、浮选药剂添加地点及分配比例不合理和浮选充气量不足等问题。针对流程中存在的问题提出了详细的改进方案,为下一步进行浮选工艺优化提供了技术依据。

Study on Investigation and Optimization Measures of Flotation Processing in a Shaanxi Gold Mine

In order solve the problems of high grade of tailings and low recovery rate of flotation in current production in a Shaanxi gold mine,, the authors investigate the grinding operations and the flotation process,and analysis the optimization measures in this paper. The results show that the efficiency of grinding and classification is low, the shortage of filling rate of ball mill and underflow rate of classification is serious, the density of flotation pulp is high, the adding location and distribution of flotation reagents are not reasonable, the aeration quantity of flotation is insufficient and so on. In view of the problems exist in the current production process, this paper puts forward detailed improvement plans, and provides detailed technical basis for the flotation process optimization in the future.