• the effect of microwave treatment upon an iron ore comminution

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    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1389/07/20
    • تاریخ انتشار در تی پی بین: 1389/07/20
    • تعداد بازدید: 832
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    • شماره تماس دبیرخانه رویداد: -
     the influence of microwave pre-treatment on mineral ore breakage has been investigated. samples of iron ore were microwave treated prior to breakage testing and change in breakage determined. drop weight tests were used to quantify the change in strength in terms of reduction in required comminution energy. the drop weight test parameters of untreated iron ore was compared to microwave-treated iron ore under the same experimental conditions and it was found that microwave-treated materials is softer than untreated in terms of the impact breakage parameter values and the abrasion breakage parameter values. after microwave treatment, about 100% increases in abrasion breakage parameter was achieved while maximum increasing in impact breakage parameter was 36%. it seems that microwave treatment is more effective for abrasion breakage mechanism; because abrasion is, a surface phenomenon and microwave treatment is more effective at surface heating.

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