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前言选矿厂的原矿、中间产品及最终产品都是粒度粗细不等的碎散物料。这些碎散物料是选矿工作者的处理对象,生产、设计及科研工作中常常需要认识它们的粒度特征。而上限粒度则是表示碎散物料粒度特征的一个重要特性参数,在确定矿石的处理方案、计算碎磨流程、选择设备、流程及设备工作效
Foreword Concentrator ore, intermediate products and final products are fragmented materials of varying particle sizes. These fragmented materials are the treatment objects for the beneficiation workers. Their production, design and research work often need to know their grain size characteristics. The upper limit granularity is an important characteristic parameter that indicates the grain size characteristics of the fragmented material. After determining the ore treatment plan, calculating the grinding process, selecting the equipment, process and equipment work efficiency