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首页> 外文期刊>The Journal of Canadian Petroleum Technology >Centrifugation Options for Production of Dry Stackable Tailings in Surface-Mined Oil Sands Tailings Management
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Centrifugation Options for Production of Dry Stackable Tailings in Surface-Mined Oil Sands Tailings Management

机译：在地面开采的油砂尾矿管理中生产干式可堆叠尾矿的离心选件

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摘要

Water availability is beginning to impact oil sands development and, as a result, several technologies to increase the percentage of recycled water are being evaluated. One such option being re-evaluated is the use of centrifuges to produce dry tailings that can accommodate overburden and soil replacement. Previous evaluations of centrifuge performance to capture water from the clay and silt tailings (mature fine tailings) components demonstrated some success but, at the time, at unacceptable costs. A better appreciation of the long-term costs of mature fine tailings storage has prompted a re-evaluation of centrifuge technology. The use of additives to improve centrifuge performance has significantly improved the results that can be achieved. Aside from the obvious positive environmental benefit of reclaiming the fluid fine (mature fine) tailings, the increase in the amount of water recycled will reduce the demand for fresh water from the Athabasca River. This paper discusses a laboratory-scale study of the water chemistry and clay/silt feed properties affecting centrifuge performance, as well as the results of a 20 tonne per hour pilot.
机译：可用水开始影响油砂的开发，因此，正在评估几种提高循环水百分比的技术。一种重新评估的选择是使用离心机生产可容纳表土和土壤置换的干尾矿。以前对离心机从黏土和淤泥尾矿（成熟的细尾矿）成分中捕集水的性能进行了评估，但取得了一些成功，但当时的成本不可接受。对成熟细尾矿储存的长期成本的更好理解促使人们对离心技术进行了重新评估。使用添加剂改善离心机性能可显着改善可达到的结果。除了回收细粒（成熟细粒）尾矿具有明显的积极环境效益外，循环水量的增加还将减少阿萨巴斯卡河对淡水的需求。本文讨论了对水化学和影响离心机性能的粘土/淤泥进料特性的实验室规模研究，以及每小时20吨的中试结果。

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