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近年来,国外有色金属矿选矿工业,在寻求高效率的机械设备,简化工艺流程,提高生产能力,降低成本;探讨效能好、选择性强的选矿药剂,强化选矿过程;采用新技术或联合方法处理难选矿石;加强选别过程的自动化;改善选矿工艺以及尾矿和废水处理等方面,都取得了一定的进展。在金属需要量不断增长,资源日益贫化的情况下,根据资源条件,兴建大型选矿厂和不断扩建原有选矿厂的规模,是当前国外选矿工
In recent years, foreign non-ferrous metal ore beneficiation industry in the search for efficient machinery and equipment, streamline the process, improve production capacity, reduce costs; explore effective, selective beneficiation agents, strengthening the beneficiation process; the use of new technologies or joint methods Some progress has been made in the treatment of refractory ores; in the automation of sorting processes; in the improvement of beneficiation processes and tailings and wastewater treatment. With the increasing demand of metals and the worsening of resources, the large-scale beneficiation plant and the continuous expansion of the existing concentrator plant under the conditions of natural resources are the major tasks of foreign mineral concentrators