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自1973年能源危机以来,价格上涨,产品成本中能源费用比例增加,加上矿石品位的下降,激励着人们去探讨更加经济有效的选矿方法及改进现行的选矿工艺和设备。因此,从八十年代初期的发展情况来看,国外选矿发展趋势是:适应于资源合理开发、节约能源和环境保护的要求,不断研制选矿新设备和改进现有设备以提高设备效率,加强选别前矿石的予处理作业和采用先进的选矿工艺,大幅度提高经济效益,研究和应用无废料工艺,提高对矿物资源的综合利用程度;推广使用先进的仪器、仪表进行检测和工艺控制,提高自动化水平;新设计的选厂应选择经济效益最佳,投资回收最快的新工艺等。破碎破碎的基本方法没有改变,但致力于
Since the energy crisis in 1973, rising prices and an increase in the share of energy costs in product costs, coupled with declining ore grades, have motivated people to explore more cost-effective beneficiation methods and improve existing beneficiation processes and equipment. Therefore, judging from the development in the early 1980s, the development trend of beneficiation in foreign countries is to adapt to the requirement of rational exploitation of resources, energy conservation and environmental protection, to continuously develop new beneficiation equipment and improve existing equipment to enhance equipment efficiency, Do not pre-ore processing operations and the use of advanced beneficiation process, a substantial increase in economic efficiency, research and application of non-waste processes, improve the comprehensive utilization of mineral resources; promote the use of advanced equipment, instrumentation for testing and process control, improve Automation level; new design of the plant should choose the best economic returns, the fastest recovery of new technology and so on. The basic method of crushing broken has not changed, but devoted to