某铜矿选矿厂工艺优化工业实践

发布时间：2018-03-14 20:01

本文选题：铜硫分离　切入点：石灰+HXM-组合抑制剂　出处：《有色金属(选矿部分)》2017年01期 　论文类型：期刊论文

【摘要】：针对某铜矿矿石性质发生变化,部分硫化铜矿与黄铁矿发生氧化,选铜作业采用单一石灰难以对硫起到较好的抑制作用,造成铜精矿品位难以提高,铜硫分离困难等一系列问题,需对该选矿厂现场进行工艺优化。工业实践中,组合抑制剂石灰+HXM-2较好地解决了单一石灰法难以抑制黄铁矿的问题,通过降低石灰用量,减少粗选过程中铜的损失,提高粗精矿的回收率。同时,通过铜精选第三槽的改造及石灰添加系统的改造,强化了铜精选过程,最终达到了既提高了铜精矿回收率,又提高了铜精矿铜品位的目的。最终铜精矿铜品位高达22.49%,铜回收率达89.20%,铜精矿品位提高3.07%,回收率提高2.38%。本次工业实践,未增加药剂成本,也未增加额外投资,每年增加总效益额为478.61万元,经济效益显著。
[Abstract]:In view of the change of ore properties and oxidation of some sulphide ores with pyrite, it is difficult to restrain sulfur by using single lime in copper dressing operation, resulting in the difficulty of improving the grade of copper concentrate. A series of problems, such as difficult separation of copper and sulfur, need to be optimized on the site of the concentrator. In industrial practice, the combined inhibitor lime HXM-2 has solved the problem that it is difficult to restrain pyrite by single lime method, by reducing the amount of lime. By reducing the loss of copper and increasing the recovery rate of coarse concentrate, the copper cleaning process has been strengthened through the transformation of the third tank of copper cleaning and the reformation of lime addition system, and the recovery rate of copper concentrate has finally been increased. In the end, the copper grade of the concentrate is as high as 22.49, the copper recovery rate is 89.20, the copper concentrate grade is increased by 3.07 and the recovery rate is increased by 2.38.The industrial practice has not increased the pharmaceutical cost or the additional investment. The total benefit increase is four million seven hundred and eighty-six thousand and one hundred yuan each year, and the economic benefit is remarkable.
【作者单位】：紫金矿业集团股份有限公司;
【分类号】：TD952

【相似文献】