铜冶炼自动剥片机组设备的设计及改造

随着社会不断进步,世界经济全球化发展的情况下,各行各业面临巨大压力,铜冶炼行业竞争同样十分激烈。但是许多企业的铜冶炼自动剥片机组设备存在问题,制约了铜冶炼工作进程与效率。为此提出铜冶炼自动剥片机组设备的设计及改造。通过了解铜冶炼自动剥片机组设备设计,了解铜冶炼自动剥片机组设备的组成、铜冶炼自动剥片机组设备的结构工作流程,发现铜冶炼自动剥片机组设备存在问题的构件。在改造铜冶炼自动剥片机组设备中,针对详细分析铜冶炼自动剥片机组设备后,对存在问题的部件进行改造,从而提高铜冶炼自动剥片机组设备对铜冶炼的工作进程和效率。     

铜冶炼生产过程在线控制系统设计与实现

随着我国铜冶炼技术不断的完善,使我国的铜冶炼行业得到了更好的发展。目前,在铜冶炼行业中使用比较多的是闪速炉铜冶炼技术,很多工厂为了提高工艺的水平、减少成本、保证生产,在冶金计算模型相关技术上投入了大量的财力和人力,这对铜冶炼控制系统的建设具有很大的帮助。对铜冶炼生产中利用冶金物理化学机理研究进行分析,实现铜冶炼制造生产中的在线智能控制技术。     

铜冶炼渣资源处理技术方案比选与设计实践

铜冶炼渣是一种重要的可回收铜资源。本文详细分析了白银公司1 370 kt/a铜冶炼渣资源处理工程采取铜冶炼炉渣经一定时间缓冷后送选矿,产出铜精矿再返回铜熔炼配料回收铜的技术处理方案。实践证明,渣选矿工艺的铜金属回收率较高,是铜冶炼渣资源处理回收铜的有效途径。     

铜冶炼安全现状及发展对策

本文简要分析铜冶炼安全现状,引进安全管理技术,介绍了铜冶炼安全风险管理系统建设理念,阐述了铜冶炼企业各部门的安全管理现状:冶炼车间安全生产因素、化验室安全因素、确定安全管理结构,分析了安全管理效果;探索了铜冶炼发展对策:提升国内铜资源勘测精准性、加强进口原料引进的规范性、增强科学研究力度、提高铜冶炼结构科学性、系统性开展铜资源回收工作。     

分析砷在铜冶炼过程的分布及其控制

铜冶炼过程中通常伴随着有砷的出现,通过分析铜冶炼原料铜精矿中砷含量,了解砷在铜冶炼过程中的分布,了解其主要特征,根据实际状况综合合理的控制,探究有效的脱砷工艺与技术。基于此,文章主要对铜冶炼过程中砷的分布与控制工艺手段进行了论述分析,分析了铜冶炼工艺现状,探究了砷在铜冶炼过程的分布,总结了砷在铜冶炼过程控制工艺手段,以供参考。     

铜冶炼工艺技术的进展与我国铜冶炼厂的技术升级

20世纪70年代以来世界铜冶炼工艺技术发展很快,出现了很多新工艺并应用于工业生产;20世纪90年代开始我国老的铜冶炼厂均先后进行了技术升级改造,进入21世纪后又建设了很多新的铜冶炼厂,均采用先进冶炼工艺;2008年以后国内自主开发的铜冶炼新工艺得到迅速推广应用。综述了世界铜精矿熔炼和铜锍吹炼的技术进展,回顾了我国铜冶炼厂技术升级的历程,总结了我国铜冶炼厂冶炼工艺选择的经验,对我国铜冶炼项目的冶炼工艺选择提出了建议。     

中低品位废杂铜冶炼工艺现状及发展趋势

废杂铜由于其品位不同,冶炼工艺也不尽相同。本文着重介绍中低品位废杂铜的冶炼特点和国内外冶炼工艺现状,分析并阐述了中低品位废杂铜冶炼工艺的发展趋势。     

铜冶炼行业现状及发展对策

铜是一种重要的生产和生活的资源,是最早发现和应用的金属,和我们的生活联系非常紧密,被广泛的用在社会各个行业之中。我国已经形成勘探、矿山、冶炼、设计研究的一整套铜工业的生产系统。本文从铜冶炼出发,首先,介绍了铜原料的供应。然后,介绍了我国铜冶炼行业的发展情况,最后,根据铜冶炼行业出现的问题提出的建议。本文希望通过对我国铜冶炼行业的研究,探讨铜冶炼新的方向。     

中国铜冶炼技术进步与发展趋势

我国铜产业呈现"两头小、中间大"结构现状,必须加快科技创新及产业结构调整步伐,使我国铜工业向着良性、健康方向发展。本文针对火法铜冶炼中熔炼、吹炼、精炼和电解等四个生产流程,简要叙述了国内外铜冶炼技术现状及国内铜冶炼工艺的技术进步,展望了铜冶炼技术的发展方向。     

以绿色发展理念构建铜冶炼生态链

铜是国民经济发展的重要基础原材料,随着铜产业规模的扩大,铜冶炼得到了快速发展,与此同时行业也面临着如原料安全、环境污染、能源利用等诸多问题,对铜冶炼行业的发展形成制约。本文结合“双碳”“双循环”“绿色发展”等时代背景,全面分析铜冶炼行业当前绿色发展态势,及资源、能源、“三废”治理及数字化转型等方面面临的技术难点。在充分分析的基础上对未来铜冶炼行业绿色发展的实施路径进行研判,提出了有价元素产品化、节能降碳、跨界整合、智慧冶炼以及构建铜冶炼生态链的发展路径,并为铜冶炼行业绿色发展提出了具体的实施建议。     

A New Technology for Copper Slag Reduction to Get Molten Iron and Copper Matte

The change of iron composition as well as the removal of copper from iron was investigated in the reduction process,and a new way to deal with copper slag was proposed.The iron in copper slag exists mainly in the form of fayalite,and the copper sulfide content accounts for just about 50%.Therefore,the magnetic separation as well as grinding floatation method is not suitable,and a pyrogenic treatment on copper slag is necessary.The carburization and desulfurization process is restricted to a degree within the carbon composite pellets,and copper matte phase precipitates from copper slag in the reduction process,which is immiscible with molten iron and slag.The copper content decreases to 0.4% as the carbon content in molten iron reaches 3.84%,and the removal ratio of copper from molten iron approaches to 80%.The reduction and sulfurization process can be completed in one step,and the copper is separated from iron based on the ternary system of iron-matte-slag.     

浅析砷锑在铜电解过程中的行为

通过对铜电解过程中阳极铜、阳极泥、砷锑渣、电解液悬浮物、电铜中杂质元素存在形态的分析 ,探讨砷锑在铜电解过程中的行为 ,以寻求稳定铜电解生产过程和提高电铜质量的方法     

某含铜氧化金矿石氨氰法浸金工艺试验研究

针对某含铜金矿石进行了氨氰法浸金及浸出贵液脱铜试验研究。其结果表明:在一定条件下,可获得较好的技术指标,浸渣金品位0.38 g/t,浸出贵液金、铜平均质量浓度分别为2.27 mg/L、61.94 mg/L,渣计金浸出率为89.44%;采用双氧水除铜,铜沉淀率为85.85%,氧化沉淀渣铜品位超过50%,可以铜精矿出售。     

Treatment of Oxidized Copper Ores with Emphasis on Refractory Ores

Oxidized copper ores are exhibiting increasingly their importance as copper resources as worldwide high grade copper sulfide deposits become depleted. Extensive chemical and technological efforts have been made to meet the demand of exploitation of such copper resources. This paper reviews the processes and modifications developed in the last three decades as the results of these efforts in flotation, hydrometallurgy and combined mineral processing and metallurgy processes. The emphasis is put on the refractory oxidized ores, with a special reference to a copper deposit at Tangdan of Dongchuan mine in Yunnan province of China.     

新疆某难选氧化铜矿选矿试验研究

对新疆某氧化率较高的铜矿石进行了浮选试验研究。试验确定采用硫氧混选工艺流程,选用自行研制的捕收剂D15和起泡剂酯-20,有效回收铜的同时较好的实现了矿石中伴生银的综合回收,在确定最佳粗选条件和精选条件后,通过实验室小型闭路试验,获得了铜精矿品位21.38%,回收率80.78%,伴生银回收率82.14%的良好指标。推荐工艺流程结构简单,适应性强,易于实施,为建厂和生产提供了依据。     

Damage mechanism of copper stave used in blast furnace

In order to prolong the life of copper stave, the damage forms and reasons for copper stave were studied through the investigation of 49 blast furnaces. The damage mechanism for copper stave was investigated through thermodynamic calculation, microstructure analysis and scanning electron microscope. The results show that the main reason for the damage of copper stave is mechanical wear owing to the slag layer peel off on the hot face. Thermodynamic calculation results show the hydrogen disease reaction occurs as long as the gas flow is directly contact with copper stave body, and the volume expansion rate of copper stave body is about 183%, a large number of micro pores appear in the microstructure forcing copper stave damage. The oxygen content in copper material is critical to hydrogen disease; the service life of copper stave will be extended by strictly controlling the oxygen content in copper material.     

新型贫化剂强化回收渣含铜的研究

为强化铜渣贫化回收渣含铜,设计了一种强化铜渣贫化的还原剂。采用HSC 6.0热力学软件计算对比了新型贫化剂与无烟煤、黄铁矿等常用贫化剂贫化熔炼渣回收铜锍的反应,并以某冶炼厂熔炼渣为原料进行试验并验证了新型贫化剂的强化作用。热力学计算结果表明,新型贫化剂还原铜渣（主要成分为Fe2SiO4和Fe3O4）的效果优于无烟煤和黄铁矿。试验结果表明,采用无烟煤、黄铁矿、新型贫化剂三种还原剂单独贫化回收渣含铜时,铜的回收率分别为30.83%、52.50%、66.67%。新型贫化剂能够强化回收渣含铜,有望为铜渣高效贫化并提高无烟煤等传统化石能源贫化铜渣利用率提供借鉴。     

Differential precipitation of copper and nickel from acidic polymetallic aqueous solutions

During the pyrometallurgical treatment of copper concentrates several wastes (gaseous, solid and liquid) are generated. Wastewaters produced in a primary copper smelter are acidic polymetallic solutions characterized by intermediate to high sulphuric acid concentration. Additionally, they usually contain large quantities of valuable metals, such as Cu and Ni, as well as impurities, such as Pb, Zn, Fe, As, Sb, Bi, etc. Therefore, recovery of valuable metals from acidic polymetallic aqueous solutions is of great importance for every plant. This paper is dealing with the recovery of copper and nickel from the acidic polymetallic solutions generated in the copper smelter at Bor, Serbia. The process of differential precipitation of metals through neutralization with caustic soda was selected as the treatment alternative that combines simplicity, efficiency and reliability with low capital and maintenance costs. The concept was based on the development of a simple and efficient process that could be more attractive for industries located in countries suffering from economic recession. Theoretical analysis and experimental results showed that copper and nickel can be differentially removed from the acidic polymetallic solutions at pH = 7 and pH = 10, respectively, mainly contaminated by arsenic, which occurs at high concentrations in acidic polymetallic solutions. Both metals were precipitated as hydroxides, although a small portion of copper was removed also as copper sulfate salt. The resulted precipitates are rich in copper and nickel and can be recycled in copper, as well as in nickel smelters.     

黑铜除砷生产实践

本文针对在铅锌冶炼企业回收有价金属铜时,原料铜浮渣、锌冶炼铜渣、海绵铜舍砷较高,影响黑铜产品质量的稳定这一问题,通过对铜回收系统的反射炉、鼓风炉、卧式吹炼炉三道工序除砷工艺的探讨和总结,找到一条切实可行的除砷方法,确保产品黑铜含砷符合客户要求.     

铜湿法冶金现状及未来发展方向

目前氧化铜矿堆浸／溶剂萃取／电积生产阴极铜，已被证实是一种低成本的铜冶炼方法。堆浸／萃取／电积法的成功也带来了开发湿法冶金工艺从黄铜矿和其他铜精矿中提铜的复兴，本文论述了湿法炼铜工艺的现状并考察了商业上最具吸引力的潜在应用，对湿法处理黄铜矿精矿的优缺点及其初步的经济指标与现有最好的铜熔炼和精炼生产进行了比较。