NG500型石棉纤维富集机是我矿在研究了国外的空气通过式石棉分选机和“霍尔”型石棉选矿筛上的吸棉滚筒的选别原理后,重新研究设计出的一种石棉选矿设备。这种设备在我矿石棉选矿工艺流程中已使用了一年多的时间,实践证明,效果良好。在选别流程中,当对含有各种品位的石棉矿石(包括对尾矿的回收或安置在控制尾矿的选矿部位)进行分选富集时,能够得到较好的选别指标,石棉纤维的回收率可达98％,与国外的空气通过式石棉分选机的回收率60％相比,提高了30％以上。用富集机所选出的半成品棉中所含的砂量,仅为30％,比国外同类设备含砂量60％相比下降 NG500-type asbestos fiber enrichment machine is mine mine in the study of foreign air through the asbestos sorting machine and the “Hall” asbestos dressing screen on the cotton picking drum sorting principle, the re-study of a design of asbestos Mineral processing equipment. This equipment has been used for more than a year in my mineral wool beneficiation process and proved to be effective. In the sorting process, when the asbestos ore with various grades (including tailings recovery or placement in the control tailings beneficiation site) for enrichment, can get a better sorting index, asbestos fibers Of the recovery rate of up to 98%, with foreign air through the asbestos separator recovery rate of 60% compared to more than 30%. The amount of sand contained in the semi-manufactured cotton products selected by the enrichment machine is only 30%, which is lower than that of foreign similar equipment by 60%