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系统地介绍云南北衙多金属矿的矿石特性、设计选用的流程,并对选矿设备选型进行详细的介绍,对设计指标与生产指标进行对比。 相似文献
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柿竹园多金属矿选矿厂设计与生产实践 总被引:1,自引:0,他引:1
陈典助 《有色金属(选矿部分)》2007,(2):35-38,34
系统地介绍了柿竹园多金属矿的特性、设计选用的流程,并对选矿设备进行了详细的介绍与比较。粗选设备设计选用了浮选柱代替常规浮选机,大幅度降低了生产成本。精矿脱水采用陶瓷过滤机、干燥采用粉体干燥机解决了矿山几代人想解决的难题。 相似文献
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本文介绍了钢渣处理线自控系统的设计及开发,采用面向对象方法进行程序设计,程序结构简单,维护扩展方便。钢渣处理线自控系统的投入使用,实现了钢渣处理过程的机械化和连续化,保障了设备的安全,降低了工人的劳动强度,显著提高了钢渣处理效率。 相似文献
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数模在选矿设备试验研究中的应用 总被引:1,自引:1,他引:0
提出了一种选矿设备试验研究用的数学模型的建模方法 ,介绍了此种建模方法的特点、具体实现过程及软件的设计。此外 ,结合两种选矿设备在工业试验研究中的建模应用实例 ,阐述了此种建模方法在选矿设备的操作工艺优化、性能评估及指标预测等方面的具体应用 相似文献
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<正> 近年来,随着选矿工业的迅速发展,对高效能选矿设备的设计和研究也越加受到重视,并取得了一些新的进展。本文仅就在参加第十五届国际选矿会议期间所了解到的几种选矿新设备作一简单介绍,并结合我国的具体情况,谈谈自己的粗浅看法。在本届国际选矿会议上交流的论文中,有十三篇专门论述了选矿设备,有二十一篇 相似文献
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Frédéric J. Doucet 《Minerals Engineering》2010,23(3):262-269
Industrial mineral carbonation of alkaline wastes, an increasingly promising component of carbon capture and storage, may play an important role as a CO2 mitigation strategy in the context of climate change. Steelmaking slags are of particular interest owing to their high content of calcium. The cumulated ‘effective’ CO2-specific sequestration capacity (calculated on the basis of calcium and magnesium extracted to a 0.5 M HNO3 solution) of three basic oxygen and one electric arc furnace slags generated at steel mills in South Africa was 253 kt CO2 per annum, which was 25.2% lower than their cumulated ‘theoretical’ capacity (estimated on the basis of total calcium and magnesium content in slags). The mineralogical composition and solubility characteristics of slags conferred very distinct leaching behaviours to the slags, including differences in: (i) the amount of heat generated during their dissolution, (ii) their buffering capacity, (iii) the rate and extent of calcium and magnesium extraction from the slags, and (iv) the mineralogical composition of the non-dissolved residues. These findings suggest that separate leaching processes may need to be developed for slags with largely distinct mineralogical compositions and structural features. 相似文献
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将高岭土和氢氧化钠固体的热活化产物与钢渣混合、水化、压制,制备了一种较高强度的钢渣-高岭土基地质聚合物材料。采用XRD、FTIR和SEM测试方法对原料和合成的地质聚合物材料的表面键合、物相及微观结构的变化进行了分析。质量分数为5%的高岭土碱热活化物料与95%的钢渣粉末制备的地质聚合物材料,其养护3、7和28 d的试块抗压强度分别为20、30和28.9 MPa,达到了非承重墙体建筑材料MU20、MU25和MU30的强度等级标准。表面键合变化表明,反应生成了Si(Al)-O三维网络结构的地质聚合物,钢渣中的硅酸钙受碱激发生成C-S-H凝胶,不反应的固体作填充料增加了材料的抗压强度。 相似文献
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攀钢钢渣、铁渣中金属铁资源的回收 总被引:1,自引:0,他引:1
攀钢采用热焖工艺使钢渣粉化率达到92%,淘汰了传统的破碎、磁选工艺,并通过切割、自磨进一步提高了渣钢品位及回收率;对铁渣进行打砸、筛分和磁选,选出块铁和废渣,再利用球磨和重选工艺对废渣进行深加工,从而实现了钢渣、铁渣中铁资源的回收利用。 相似文献
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Today in primary as well as in secondary metallurgy various zinc containing residues especially filter dusts can be found. This is due to the low vaporization temperature of zinc, which causes a concentration in the off-gas stream and the generated dust respectively. Typical examples of these dusts can be found in lead, copper and steel industry. Furthermore, zinc is present with relatively high concentrations in residues from hydrometallurgy and in different slags. As examples neutral leaching residues and slags from lead industry can be named. Today the processing of such materials is mostly done by pyrometallurgical, carbothermal reduction with exception of those from copper secondary metallurgy. Beside the Waelz kiln there are several other developments which are all based on an at least similar principle. All these processes have disadvantages like the generation of high amounts of by-products e.g. slags and the recovery of only one of the valuable metals in common. Beside this, comparably low yields as well as relatively bad product qualities are characteristic for such processes. Therefore, low recycling rates and newly generated residues are the consequence. 相似文献