圆振筛筛分优化及技术改造实践  

Practice of screening optimization and technical renovation of circular vibrating screen

作　　者：孙素英 初道忠[1] 赵忠琦 Sun Suying;Chu Daozhong;Zhao Zhongqi(School of Resources and Environmental Engineering,Shandong University of Technology)

机构地区：[1]山东理工大学资源与环境工程学院

出　　处：《黄金》2018年第12期52-55,共4页Gold

摘　　要：山东黄金矿业(莱西)有限公司选矿厂破碎系统处理能力170 t/h,2017年末破碎系统给矿水分发生变化,从2. 0%增加至5. 0%,圆振筛筛分效率低,破碎处理能力急剧下降,仅为120 t/h。通过流程考查,确定了最佳的改造方案:将圆振筛双层筛网改为一层半筛网,并增加一层棒条筛用于分流大块物料,同时将聚氨酯筛网改为高锰钢筛网,并增加激振器自动清理筛孔。改造优化后破碎系统处理能力达到200 t/h,破碎产品粒度降至10 mm以下,磨矿处理能力提高1 t/h,取得了显著的技术经济效果。The crushing capacity of the crushing system in the concentrator of Shandong Gold Mining(Laixi)Co.,Ltd.is 170 t/h.At the end of 2017,the water content in the feed to the crushing system increased from 2.0%to 5.0%,lowering the screening efficiency of circular screen,and the crushing ability was reduced sharply to 120 t/h.Through process inspection,the optimal renovation plan is decided:the double-layered screen mesh of the vibrating screen in turned into one-and-a-half-layered screen mesh,and a layer of bar screen is added to stream part of the big blocks.At the same time,polyurethane screen mesh is replaced by high manganese steel screen mesh and vibration exciter is added to automatically clean the screen mesh.The capacity of crushing system after the renovation reaches 200 t/h,the product fineness goes below 10 mm,the grinding ability is increased by 1 t/h,achieving outstanding technical and economic outcome.

关 键 词：圆振筛 棒条筛 破碎 筛分效率 激振器 优化改造 

分 类 号：TD921.3[矿业工程—选矿]