哈图金矿1990年新扩建500t/d选厂,原设计流程采用一段混汞(在一段棒磨排矿),设计指标:磨矿浓度75～78％,细度-0.076mm占38％,混汞回收率50％;试生产实际回收率只达到29.56～36.21％,分析其主要原因是一段磨矿细度不够,金没有达到单体分离。 为提高混汞回收率,在利用现有设备和不影响生产的情况下进行了技术改造,采用 Hartu gold mine in 1990, the new expansion of 500t / d processing plant, the original design process uses a period of amalgamation (in a section of rod mill discharge), design indicators: grinding concentration 75-78%, fineness -0.076mm 38% The recovery rate of amalgamation was 50%. The actual recovery rate of the pilot production only reached 29.56 ~ 36.21%. The main reason for the analysis was that the grinding fineness was not enough for a period of grinding and the separation of the monomers did not reach the level of gold. In order to improve the recovery rate of amalgamation, technological transformation has been carried out using existing equipment and without affecting production,