前言自磨、半自磨与常规磨矿回路用于矿石加工。然而,当前的主要趋向是采用前两种方式。其理由是,一般来说自磨或半自磨回路的初期投资低于常规碎磨回路。可是,在这种评价中对于碎磨总经济效益有很大影响的生产费用却未予以考虑。在选矿厂中约70%的能源消耗于碎磨回路。直到1974年石油禁运前夕,能源价格还不太昂贵。但从那时起能源费用增加了40倍。其结果能源费用在碎磨生产费用中所占 Preface self-grinding, semi-self-grinding and conventional grinding circuit for ore processing. However, the current main trend is to adopt the first two approaches. The reason is that, in general, the initial investment in a self-grinding or semi-self-grinding circuit is lower than that of a conventional grinding circuit. However, production costs that have a significant impact on the overall economics of crushing in this evaluation have not been taken into account. Approximately 70% of the energy used in the concentrator is consumed in the crushing circuit. Until the eve of the 1974 oil embargo, energy prices were not too expensive. But energy costs have increased 40 times since then. As a result, the cost of energy accounts for the cost of crushing production