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位于南非穆普马兰加(Mpumalanga)省的恩科马蒂矿(Nkomati)是一个很大的镍/铜矿石资源基地。目前正对该砂体的梅恩(Main)矿化区进行矿石选别方法的研究。本文论述了该矿选厂磨矿回路选择的程序。磨矿回路选择中的主要问题与地质、矿物组成、采矿及冶金等密切相关。广泛的磨矿回路选择程序是以月处理能力为300000t为基础的,包括整个半工业试验和小型试验结果、设计标准、矿物工艺因素、恩科马蒂工程法规以及磨矿回路结构与磨机尽寸定型的最终决策。为该选厂推荐的磨矿回路是世界上最大的磨矿回路之一。该回路中装有最大型的一段全自磨机以及最大型的二段砾磨机。在磨矿回路选择中关键的问题是通过用各种方法减少与这种规格磨机操作有关的风险。
Nkomati, located in the province of Mpumalanga, South Africa, is a large nickel / copper ore resource base. At present, the method of ore separation and classification is being studied on the Main mineralization area of the sand body. This article discusses the procedure for selecting the grinding circuit of this ore dressing plant. The main problems in grinding circuit selection are closely related to geology, mineral composition, mining and metallurgy. The extensive grinding circuit selection program is based on a monthly treatment capacity of 300000t, including the entire semi-industrial test and small-scale test results, design criteria, mineral processing factors, Nkomati engineering regulations, and grinding circuit construction and mill exhaustion Inch final shape decision. The recommended grinding circuit for this mill is one of the largest grinding circuits in the world. The circuit is equipped with the largest section of self-mill and the largest two-section pebble mill. A key issue in the selection of grinding circuits is the reduction of the risks associated with mill operation of this size by various means.