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萧治彭 《有色金属再生与利用》2012,(4):54-57
有色金属冶炼的主要设备就是有色金属冶炼炉窑,研究有色金属冶炼工业技术进步对耐火材料品种、质量的需求应该是耐火材料行业为有色金属冶炼炉窑延长寿命、提高产量主要的任务。现就铜、铅、锌等主要有色金属冶炼炉窑的现状和对耐火材料的要求进行介绍。 相似文献
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有色金属工业是我国传统的基础行业,有色金属工业产品大部分是基础原科产品,各类金属大致分为矿产品、冶炼产品和加工产品.矿产品有铜精矿、铅精矿、镍精矿和铝土矿石等,冶炼产品是国家要求有色金属行业统计的主导产品(十种有色金属产量统计就是针对冶炼产品).而加工材方面主要是铜、铝加工材,分为管、板、带、箔、锻件、棒材和型材等.铜加工材以管材为主,铝加工材以型材为主. 相似文献
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有色冶炼的重金属污染 总被引:3,自引:0,他引:3
介绍了我国有色金属冶炼行业重金属污染问题,对国际社会在汞、铅、镉等典型重金属问题上拟采取全球统一措施的可能性与进展进行了论述。针对即将形成公约的汞问题的国际谈判历程,指出我国国内面临的压力,以及有色金属冶炼行业的涉汞问题,并提出对策建议。 相似文献
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我国再生有色金属在管理、回收、冶炼等方面存在的问题引起社会广泛关注。新成立的中国有色金属加工工业协会再生金属分会为此建议: 一、再生有色金属的回收和利用应纳入国家计划,规定出废旧金属调出量和再生金属利 相似文献
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一、前言 有色金属再生是指有色金属废料和废件经过冶炼后产出有色金属或合金的过程.再生金属又称为二次资源. 相似文献
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Jacob Wood Joey Hoang Stephen Hughes 《JOM Journal of the Minerals, Metals and Materials Society》2017,69(6):1013-1020
The global, non-ferrous smelting industry has witnessed the continual development and evolution of processing technologies in a bid to reduce operating costs and improve the safety and environmental performance of processing plants. This is particularly true in the copper industry, which has seen a number of bath smelting technologies developed and implemented during the past 30 years. The Outotec® Ausmelt Top Submerged Lance Process is one such example, which has been widely adopted in the modernisation of copper processing facilities in China and Russia. Despite improvements in the energy efficiency of modern copper smelting and converting technologies, additional innovation and development is required to further reduce energy consumption, whilst still complying with stringent environmental regulations. In response to this challenge, the Ausmelt Process has undergone significant change and improvement over the course of its history, in an effort to improve its overall competitiveness, particularly with respect to energy efficiency and operating costs. This paper covers a number of recent advances to the technology and highlights the impacts of these developments in reducing energy consumptions for a range of different copper flowsheets. It also compares the energy efficiency of the Ausmelt Process against the Bottom Blown Smelting process, which has become widely adopted in China over the past 5–10 years. 相似文献
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《International Journal of Cast Metals Research》2013,26(1-4):287-292
AbstractThis paper presents an advanced control system in a tilting ladle type automatic pouring system. To improve the productivity and save energy, in the pouring process, it is important that the mould be filled precisely and quickly with molten metal. A sequence control employing prediction of filling weight is proposed in this paper. In the proposed control system, the sequence parameter varies depending on the predicted filling weight during the back tilting. The proposed control system has an advantage in that it can be performed by common control equipment such as a programmable logical controller. The effectiveness of the proposed filling weight control system is demonstrated through the experiments using water. 相似文献
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旋锻法加工低塑性有色金属异型材的应用研究 总被引:1,自引:0,他引:1
针对异型材的几种常用加工方法,如拉伸、辊拉、轧制等,分析它们在加工中的应力特点.拉伸、辊拉为二向拉应力、一向压应力,所以对塑性较好的金属线材有利,而对低塑性有色金属材料不利,后者加工时易出现拉裂或拉断现象,造成生产中断甚至无法加工;轧制法应力特点为三向压应力,对塑性较好或低塑性金属线材都有利,但型辊加工昂贵,轧机维护费用高,故轧制法最好用于大规模生产中.旋锻法应力特点和轧制法一致且产能较低,对产量较低、附加值较高的低塑性有色金属异型材尝试采用旋锻方法加工. 相似文献
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A. V. Tarasov V. M. Paretsky 《JOM Journal of the Minerals, Metals and Materials Society》2009,61(10):64-68
This paper discusses the most recent developments made at the Gintsvetmet Institute in technologies and equipment for single-stage
autogenous smelting of copper sulfide raw materials to produce white metal and blister copper. In particular, the oxygen-flame
smelting process and separation of highly basic calcium-containing slags are considered. This technology includes the oxygen-flame
smelting process (KFP Process) to produce highly basic self-disintegrating ferrite-calcium slags with their subsequent flotation
to recover copper. Also included is a sparging smelting process (FBP Process) to produce combined slags subjected to decopperizing
inside the same furnace. Results of special investigations of the slag structure obtained in the KFP and FBP processes and
substantiating selection of their chemical and phase composition are presented. These processes meet stringent requirements
for advanced technologies with respect to energy conservation and environmental safety with different scales of production
and within a wide range of specific conditions of particular operations. 相似文献
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To overcome limitations in current technology and to open the door to breakthroughs in the extraction and recycling of metals,
melt circulation within closed loops is proposed. The general features of generic melt circulation technology, particularly
for massive reductions in energy consumption, are highlighted. Reference is made to the recently published paper on lower-energy
primary aluminum. More detailed attention is then focused on coproduction of steel and titanium metal directly from ilmenite
concentrates. The energy consumption is projected to be less than one third of the best available technology (Kroll process).
Next, new copper smelting concepts based on melt circulation are introduced because current advanced processes are judged
to be, without exception, energy inefficient. 相似文献
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有色金属基复合材料相对于传统有色金属材料而言,具有更好的抗氧化性、高耐热性、高比强度、高比模量、耐磨损和高使用寿命。在有色金属基复合材料的众多的增强体中,非金属纤维(C/C、SiC)与金属基质结合界面的相容性是制约金属基复合材料性能的关键问题,而金属纤维与金属基质之间良好的相容性能够有效改善金属材料的性能。金属纤维增强有色金属基复合材料的制备工艺主要有扩散粘结法、液态渗透法、压力铸造法、涂层热压法、双辊轧制法。 本文主要总结了钢纤维增强有色金属基(Al、Mg、Cu、Zn和Zr)复合材料的制备方法、微观组织、界面特征和机械性能,指出了钢纤维增强有色金属基复合材料进一步研究发展所需要解决的问题。 相似文献
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Auslron炼铁新技术 总被引:2,自引:0,他引:2
Auslron技术是一种采用低成本气煤作燃料和还原剂,使用粉矿、块矿或粗粒矿生产铁水,并从还原炉回收能源的熔融还原工艺。介绍了该工艺的发展概况,操作原理和中间试验结果,总结了该工艺的优点。 相似文献
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砷作为有色金属矿物的共伴生元素,在有色金属冶炼过程中以含砷“三废”形式大量产出。由于砷具有强致癌性及毒性,导致砷的安全处置问题严重困扰着有色金属冶炼企业。本文通过阐述含砷废水中砷的两种稳定化工艺的研究进展,对比了现有稳定化工艺的优缺点,结合药剂稳定化和矿物稳定化的优点,借鉴砷元素在地球化学中的成矿规律,提出了硫化沉砷?水热还原矿化稳定砷的技术思路。首先采用硫化法脱除含砷废水中的砷,砷的沉淀率高达99.65%,硫化沉淀物在TCLP毒性检测中砷的浓度达到212.9 mg/L。然后采用As-S系一元水热还原矿化法和As-Fe-S系二元水热还原矿化方法稳定砷,稳定化产物分别为雌黄和雌黄?铁硫系(黄铁矿、硫化亚铁)混合物,在TCLP毒性检测中砷的浸出浓度分别为3.86 mg/L和2.65 mg/L。水热还原矿化工艺实现了含砷废水中砷的脱除及稳定化的目的,为水溶液中砷的脱除和稳定化提供了新的思路。 相似文献
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