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提高破碎、磨矿、篩分和分級設备的效率,減少能量消耗,是提高选矿指标、降低选矿成本的重大問題,是国外长期研究的目标。一、新型破碎、磨矿设备的设计和制造国外主要动向是設計和制造新型的高效率的破碎,磨矿設备。近年来突出进展的是自磨磨矿机的应用。如加拿大的卡洛(Carol)铁矿就安装了12台直径为6.3米的气落式(Aerofall mill)磨矿机,日处理量达6万吨;工业上还出現一种抛落式(Cascademill)磨矿机,工业試驗用最大的尺寸直径7.米,美
Increasing the efficiency of crushing, grinding, screening and grading equipment and reducing energy consumption are major issues in improving beneficiation indicators and reducing the cost of beneficiation, which is the long-term goal of foreign research. First, the new crushing, grinding equipment design and manufacture of foreign main trend is the design and manufacture of new high-efficiency crushing and grinding equipment. Prominent progress in recent years is the application of self-grinding mill. At Carol’s iron ore mine in Canada, for example, 12 Aerofall mill mills with a diameter of 6.3 meters were installed on a daily capacity of 60,000 tons and a cascade mill ) Mill, the largest industrial test diameter diameter of 7. Mi, the United States