AFX-100复式流化分级机的开发及工业试验研究(下)

Development and Insustrial Test of AFX-100 Compound Fluidized-Bed Classifier(Part Two)

德国AFX复式流化分级机思路新颖，构想巧妙，设计理念独特，分级原理先进，结构简单合理，自动化程度高，适应性强，分级效率高，指标优越，处理能力大，分级粒度精确，耗电低，运行成本低，运转安全可靠，一机多用，既可取代螺旋分级机和水力旋流器，还可替代细筛，是其它分级设备无可比拟的第三代高效新型分级设备。复式流化分级机在本钢集团歪头山铁矿选矿厂的工业试验结果表明，当处理量为（26～35）t／h时，粗粒、中粒、细粒级产物的-74μm含量分别为6．09％、11．82％、82．73％，得到了几乎完整的分级。而细粒级产物的质效率和量效率高达74．38％和87．66％，其分级效率是螺旋分级机的2．2倍，水力旋流器的1．8倍，是振动细筛的1．3倍。它的工业试验成功证明，该机是现代选矿技术对矿物分级及磨矿分级工艺一种全新理念的分级设备。

German AFX compound fluidized-bed classifier is characterised by novel and ingenious thought, unique design concept, advanced classification principle, simple and rational structure, high automation degree, strong adaptability, high classification efficiency, excellent performances, large capacity, accuracte classification, low electricity consumption and operation cost, safe and reliable operation and multiple-use. It can replace both sprial classifier and cyclone, and fine screen and is an uncomparable third generation high-efficiency new type classifying equipment. Its industrial test in Waitoushan Iron Mine＇s concentrator shows that a nearly complete classification can be achieved at a throughput of 26 - 35 t/h, with coarse, middle and fine product fractions being 6.09%, 11.82% and 82.73 % respectively. The qualitative and quantitative efficiencies of fine product were as high as 74.38% and 87.66%. Its classification efficiency was 2.2 times that of spiral classifier, 1.8 times that of hydrocyclone and 1.3 times that of vibrating fine screen. Its successful industrial test proves that it is classification equipment with totally new concept of modern beneficiation technology for mineral classification and grinding-classification processes.