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随着开采深度的增加，某硬岩铀矿矿性发生变化，在矿石堆浸过程中出现矿堆板结现象。为了解决矿堆板结问题，研究了淋浸剂酸度、喷淋强度、装柱高度、粒度等对矿堆板结的影响。结果表明，在淋浸剂酸度50.0 g/L、喷淋强度40.0 L/(m2·h)、浸出周期30 d条件下，柱浸试验后无板结，-10 mm矿石的铀浸出率达83.40%。800 t矿石的中试试验结果证实，在浸出剂酸度高、喷淋强度大时，矿堆无板结现象，铀浸出率可达86.57%。
Abstract：Due to the change in ore properties of a certain hard rock uranium mine with the increase of mining depth, the heap leaching process of the ore encountered the problem of heap scaling. In order to solve the problem, the effects of leaching agent acidity, spray intensity, column height and particle size on heap scaling were studied. The results show that when the acidity of the leaching agent is 50.0 g/L, the spray intensity is 40.0 L/(m2·h), and the leaching period is 30 days, there is no scaling in the column leaching test, and the uranium leaching rate of-10 mm ore reaches 83.40%. The results of the 800 t ore pilot test confirms that there is no scaling in the heap with high acidity and large spray intensity, and the uranium leaching rate reaches 86.57%.
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Basic Information:
DOI：10.13426/j.cnki.yky.2025.01.01
China Classification Code:TD868
Citation Information:
[1]康佳红,邓建国,曹彪等.硬岩铀矿淋浸工艺参数优化[J].铀矿冶,2025,44(03):35-40.DOI:10.13426/j.cnki.yky.2025.01.01.
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