高效细粒分级的重要性及其设备  

The Importance of High Efficient Fine Classification and Its Equipment

作　　者：彭彪[1] 湛含辉[1] 

机构地区：[1]湖南工业大学包装与材料工程学院,湖南株洲412007

出　　处：《湖南工业大学学报》2011年第2期31-34,共4页Journal of Hunan University of Technology

摘　　要：介绍了传统细粒分级设备并对其性能进行了比较。基于传统细粒分级设备在分级效率和处理能力等方面存在的问题,介绍了一种新型细粒分级设备——高效二次流分级筛。该设备分级效率高,最大程度防止了溢流跑粗和底流夹细(具有脱泥、降灰效果);该设备无须弧形筛作辅助分级脱水、脱泥设备,高浓度、低夹细量的底流可直接进入离心机高效脱水,为简化和优化脱水工艺创造了条件。经济效益分析表明,每年可为100万t选煤厂创造效益千万元以上。Introduces the traditional fine classification equipments and compares the properties.Based on the problems of classification efficiency and processing capacity of the traditional fine classification equipment,introduces a new fine classification equipment—high efficient secondary flow classification screen.The equipment has the advantages of high efficient classification and prevents overflow from coarse particle and underflow from fine particle（with desliming and ash reduction effect） to a great extent,and without arc screen for auxiliary dewater and desliming,the underflow of high concentration and low fine content directly flows into the centrifugal machine for efficient dehydration,which creates conditions for simplifying and optimizing the dehydration process.The economic analysis shows that high efficient fine classification can create efficiency of ten million yuan or more for mining factory of the capacity of one million ton.

关 键 词：细粒分级 分级效率 溢流跑粗 底流夹细 二次流分级筛 

分 类 号：TD94[矿业工程—选矿]