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The new Cullinan AG milling circuit -a narrative of progress

机译:新的CULLINAN AG铣削电路-A进展的叙述

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摘要

In 2017, Petra Diamonds completed the construction and commissioning of a modern, fit-for-purpose diamond processing plant at Cullinan Diamond Mine (CDM). The design of CDM's milling circuit is unconventional in that it comprises an autogenous (AG) mill with a grate discharge with large ports, low-revolution jaw crushers, and high-pressure grinding roll crushers with large operating gaps. In this paper we review the design to provide guidance on what is expected from the milling circuit and to demonstrate how the design aims to address challenges experienced in the old plant, which was based on staged crushing technology. We assessed the performance of the CDM AG milling circuit from commissioning and early production stages to examine its impact along multiple dimensions. In the assessment we sought to understand the lessons from our milling circuit regarding diamond liberation, energy consumption, and the future of diamond processing as a whole.
机译:2017年,Petra Diamonds完成了在Cullinan Diamond Mine(CDM)的现代,适合的钻石加工厂的建设和调试。 CDM铣削电路的设计是非常规的,因为它包括具有大口袋,低旋转钳口破碎机和具有大型操作间隙的高压磨削辊式破碎机的炉排放电。 在本文中,我们审查了设计,为铣削电路的预期提供指导,并展示设计如何解决旧工厂所经历的挑战,这是基于分阶段的破碎技术。 我们评估了CDM AG铣削电路的性能,从调试和早期生产阶段进行调试和早期生产阶段来检查其沿多个维度的影响。 在评估中,我们试图了解我们作为整体钻石解放,能耗和钻石加工的未来的铣削电路的教训。

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