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前言研究结果表明,美国每年用于粉碎作业的电能约为320亿度。其中一半以上的能量用于矿石的破碎和磨碎,四分之一的能量用于水泥的生产,八分之一的能量用于煤炭的加工利用,八分之一的能量用于农产品的加工。然而,现行的粉碎技术,都存在着能耗高、效率低的缺点。粉碎工段消耗大约总加工能量(生产合格粒度产品所需的总加工能量)的70％,相当于生产铜铁产品所需总加工能量的25％,
Preface The results of the study show that the annual energy used by the United States for comminution operations is about 32 billion kWh. More than half of the energy is used for the crushing and grinding of ores, one-fourth of the energy is used for the production of cement, one-eighth of the energy is used for the processing and utilization of coal, and one-eighth of the energy is used for the processing of agricultural products . However, the current crushing technology has the disadvantage of high energy consumption and low efficiency. The comminution section consumes about 70% of the total process energy (total process energy required to produce a qualifying particle size product), which corresponds to 25% of the total process energy required to produce the copper-iron product,