梅山铁矿选矿厂最近用磁选工艺回收细粒(0.3～0mm)尾矿中的磁性矿物获得成功,每年可为矿山创效140多万元。梅山选矿厂现年处理原矿为180万吨,约有7%(原设计为3.57%)、含铁22%的细粒尾矿产生,即每年有12多万吨的尾砂需处理。选厂投产后,由于尾矿产率和含铁品位均超过设计指标,不仅增加了尾矿的输送量和费用,同时也流失了大量铁金属,还增加了尾矿坝 Recently, Meishan Iron Ore Concentrator has succeeded in recovering magnetic minerals from fine-grained tailings (0.3 ~ 0mm) by magnetic separation process, achieving a value of more than 1.4 million yuan for mines each year. The Meishan Concentrator now handles 1.8 million tons of ore, about 7% (originally designed 3.57%) and 22% of fine iron tailings, ie more than 120,000 tons of tailings are processed each year. After the plant is put into production, tailings production rate and iron content exceed the design specifications, not only increased the tailings delivery and costs, but also lost a lot of iron and metal, but also increased the tailings dam