提高浮选柱作业回收率选矿实践

Beneficiation Practice of Improving Recovery Rate of Flotation Column Operation

银山矿业选矿厂铜系统从投产以来,通过试生产和不断优化,2013年铜回收率达到了83.71%,完成了当年计划目标.但2014年1月~4月铜回收率出现了不增反降局面,仅为81.74%.为了找出铜回收率偏低的原因,对引起铜回收率变化的原因进行了分析,通过对浮选柱风量、风压,液位的调整,使浮选柱的作业回收率由原来32.89%和29.85%分别提高到54.26%和49.28%,达到了浮选柱的设计要求.

Since the copper system of Yinshan Mining Concentrator was put into operation,through trial production and continuous optimization,the copper recovery rate has reached 83.71%in 2013,fulfilling the planned target for that year.However,from January 2014 to April 2014,the copper recovery rate dropped to 81.74%instead of increasing.In order to find out the reason for the low copper recovery rate,the reasons causing the copper recovery rate are analyzed.By adjusting the air volume,air pressure and liquid level of the flotation column,the operation recovery rate of the flotation column is increased from 32.89%and 29.85%to 54.26%and 49.28%respectively,meeting the design requirements of the flotation column.