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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >A perspective of marine mining within De Beers
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A perspective of marine mining within De Beers

机译：戴比尔斯内部海洋采矿的前景

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Although the De Beers group has a long history of placer mining on land, the group only became actively involved in deep water marine diamond exploration and mining in 1983 with the formation of De Beers Marine. Full-scale commercial mining commenced around 1991. Since then, the group marine mining capability has grown into a formidable fleet of 8 large deep water (>70 m) mining vessels, as well as other special purpose geosurvey platforms. Marine diamond production by the group is expected to be just short of 1 million carats in 2006. De Beers operates across the entire value-chain spectrum from geology and geosurvey, through sampling to mining, and finally ore processing into high value concentrate. Supporting these operations involves significant service activities such as maintenance, security, logistics and environmental management. Specific challenges exist in terms of developing or acquiring appropriate technology for marine mining. These challenges have resulted in De Beers operating extensive in-house R&D and projects departments, as well as drawing extensively from technology partners. An array of computational and test facilities is also available to support R&D and projects activities. Hydrotransport in various guises is key to the current approaches to marine mining and ore processing. Use is made of airlift and centrifugal pumping for hydraulic hoisting of very coarse gravel, while splitters, launders, dewatering, elutriators, jet pumps, centrifugal pumps, dense medium circuits, pipeline systems, and instrumentation for coarse abrasive particles are used extensively in the ore processing plant.
机译：尽管戴比尔斯（De Beers）集团在陆地上进行砂矿开采已有很长的历史，但随着戴比尔斯（De Beers Marine）的成立，该集团直到1983年才积极参与深水海洋钻石的勘探和开采。全面的商业开采始于1991年左右。从那时起，该集团的海洋开采能力已发展成为拥有8艘大型深水（> 70 m）采矿船以及其他特殊目的地质勘测平台的强大舰队。该集团的海洋钻石产量到2006年预计将不足100万克拉。戴比尔斯（De Beers）的业务遍及整个价值链范围，从地质和地质调查，抽样到采矿，再到矿石加工成高价值精矿。支持这些操作涉及重要的服务活动，例如维护，安全，物流和环境管理。在开发或获取适用于海洋采矿的技术方面存在特定的挑战。这些挑战导致戴比尔斯（De Beers）运营着庞大的内部研发和项目部门，并从技术合作伙伴那里大量汲取了财富。还提供了一系列计算和测试设施来支持研发和项目活动。各种形式的水运是当前海洋采矿和矿石加工方法的关键。气力提升和离心泵可用于非常粗的砾石的液压提升，而分流器，洗涤槽，脱水，淘析器，喷射泵，离心泵，稠密介质回路，管道系统以及用于粗磨粒的仪器广泛用于矿石中加工厂。

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