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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >An approach to confidently predicting jigging performance
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An approach to confidently predicting jigging performance

机译:一种自信地预测跳线性能的方法

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摘要

The jigging of ferrous ore to produce higher-grade products has been practised for many decades. The reasons for choosing jigging before other processes might include one or more of the following: A relatively easy separation A beneficial trade-off between operating cost and reduced yield relative to dense medium processes The ability to treat ores requiring cut densities higher than an SG of 4.0 Physical characteristics of the ore that make heavy medium separation unsuitable (for example, unacceptable media loss in macroscopic pores). There is at present a drive towards the use of air-pulsed jigs for the beneficiation of ferrous ores. This is because air-pulsed jigs are capable of generating the large pulse amplitudes required to fluidize a deep bed of heavy ore-particularly lump iron or manganese ore.
机译:生产高品位产品的铁矿石跳汰已经进行了数十年。在其他过程之前选择跳汰的原因可能包括以下一项或多项:相对容易的分离相对于致密介质过程,在运营成本和降低的产量之间进行有益的折衷。 4.0使重介质分离不合适的矿石物理特性(例如,宏观孔隙中的介质损失不可接受)。目前,人们正在朝着使用空气脉冲夹具进行铁矿石选矿的方向发展。这是因为空气脉冲夹具能够产生流化重矿石深层(特别是块状铁或锰矿石)的深层所需的大脉冲幅度。

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