The Otjikoto Gold Mine in the Republic of Namibia is located approximately 300 kilometers north of the capital city of Windhoek. The project features surface mining with a modern gravity/carbon-in-pulp mill for ore treatment and recovery of gold. Initial mill design capacity was 2.5 million tonne per annum but then expanded after 9 months of operation to 3.1 million tonne per annum. The technical steps to establish the Otjikoto mill design from process selection in the due diligence stage, through flowsheet development in the feasibility study followed by detailed engineering design are reviewed in this paper along with mill performance during start-up and in 2019.

中文翻译：

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纳米比亚 Otjikoto 金厂的设计

纳米比亚共和国的 Otjikoto 金矿位于首都温得和克以北约 300 公里处。该项目的特点是采用现代重力/碳浆磨机进行露天采矿，用于矿石处理和黄金回收。最初的工厂设计产能为每年 250 万吨，但在运行 9 个月后扩大到每年 310 万吨。本文回顾了从尽职调查阶段的工艺选择到可行性研究中的流程开发以及详细的工程设计建立 Otjikoto 磨机设计的技术步骤，以及启动期间和 2019 年的磨机性能。