共查询到19条相似文献,搜索用时 78 毫秒
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为降低生产成本,某选矿厂通过引入高压辊磨工艺,对现有碎磨系统进行了改造。改造后碎磨系统产能整体提升约32%,选矿成本下降2.88元/t,达到了提质增效、节能降耗的目的。文章介绍了碎磨工艺流程的设计与主要技术指标。 相似文献
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半自磨机最佳充填率的探讨 总被引:1,自引:0,他引:1
文章介绍了某铜矿Φ8.53×3.96m半自磨机实际混合充填率由18%增加到28%左右,处理量由200t/h增加到340t/h左右.按四维破磨理论分析,当实际混合充填率≤28%会产生钢球直接砸筒体衬板,造成处理量低,能耗极高.提出装钢球120t不变,实际混合充填率由28%增加到处理能力最大能源利用率最高的最佳实际混合充填率50%左右,其处理量又由340t/h增加到670t/h左右.半自磨用电单耗由实际混合充填率20%左右的14.6kWh/t下降到7.0kWh/t左右,节电50%以上. 相似文献
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Veerendra Singh Prashant Dixit R Venugopal K Bhanu Venkatesh 《Mineral Processing and Extractive Metallurgy Review》2019,40(1):1-15
Pretreatment of ores to improve energy efficacy of grinding has been explored for decades. However, many of these techniques are still at developmental stages and a review has been presented in this paper to discuss the research journey and problems associated with commercialization of these techniques. This review reveals that a variety of stress-generating techniques have been used to treat the composition and morphology of particles to improve the grinding process. Grinding additives are used commercially successful technology while microwave pretreatment also has been successfully piloted. Newly developed techniques such as ultrasonics and electric disintegration have shown potential for success but the cost economics of these processes is still not as attractive as desired. Incipient techniques based on bio-milling, shock waves, and nuclear hold promise for the future. It is also expected that the technological advances around information technology, instrumentation, and energy science will help to solve techno-economic challenges associated with commercialization of the known technologies. Demand for energy-efficient grinding pretreatment methods will grow in the future considering the depletion of high-grade resources and stringent environmental constraints related to reject disposal. 相似文献
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德兴铜矿低品位铜矿石的评价与利用 总被引:2,自引:0,他引:2
简述了德兴铜矿低品位铜矿石、矿体中夹石及表外矿的综合探矿、综合评价、综合回收的实践与效果 ,这可供同类型矿山资源综合利用时借鉴。 相似文献
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硫化铜精矿综合利用的研究 总被引:3,自引:0,他引:3
研究了采用硫化铜精矿生产硫酸铜、亚硫酸铵和铁红的方法,试验考察了焙烧温度、浸出酸度、浸出温度和浸出时间等因素对浸出率和浸出液铁含量的影响,确定了最佳工艺条件。技术指标:浸出率大于96%,浸出三价铁含量2-3/L,一次结晶的硫酸铜达到了GB437-80中一级硫酸铜的标准。试验证明,本工艺在生产上是可行的。 相似文献
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针对硫酸铜生产过程中LS型螺旋输送机出现的一些问题,逐一进行了分析,找到了LS型螺旋给料机在运行过程中发生卡死和输送轴断裂的原因。在进行了加装过滤网和输送轴轴长改造后,出现的问题得到了圆满的解决,确保了硫酸铜生产的顺行,提升了工厂的经济效益。 相似文献
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某矽卡岩型铜矿原矿含铜0.98%,试验研究通过采用混合用药、延长浮选时间及中矿再磨等工艺优化措施,实现了一段粗磨选矿。在一段磨矿细度-74μm55.2%、中矿再磨细度-74μm81.3%条件下,经"二粗二扫一精"浮选流程,获得铜精矿品位20.37%(Au9.04g/t;Ag93.27 g/t),铜回收率94.40% (Au71.85%;Ag71.78%)的选矿技术指标。 相似文献