福建某铜矿碎磨工艺的设计研究

针对福建某铜矿项目拟采用的SABC(半自磨+顽石破碎+球磨)与3CB(传统三段破碎+球磨)碎磨工艺进行研究,从项目规模、矿石性质、设备选型、能耗与经济分析等多个方面进行对比,最终选择了流程简单、设备数量少及总体经济性能较好的SABC碎磨工艺,为该项目碎磨工艺的选择与设计提供了可靠的理论依据。     

多宝山铜矿大型选矿厂碎磨工艺探析

多宝山铜矿选矿厂根据矿石性质特征及碎磨工艺特点,创造性地设计了"常规三段闭路破碎 + 球磨"和"粗碎 + 半自磨 + 球磨"的组合型碎磨工艺,对比分析了两种工艺的碎磨生产成本。结果表明,半自磨系统磨矿电耗升高了 7.46 kW·h/t,碎磨吨矿成本上升了 2.53 元。为此,提出了一系列降本增效的碎磨工艺优化措施,实现了碎磨过程的高效、节能,降低了能耗和钢耗。     

乌努格吐山铜钼矿碎磨流程设计及生产实践

<正>乌努格吐山铜钼矿一期选矿厂设计规模双系列36 000 t/d,单系列设计能力18 000 t/d。2009年8月26日试生产,目前单系列生产能力达到826 t/h。乌山为国内首家采用SABC碎磨流程的大型有色金属选矿厂,设计过程中大胆尝试新工艺、新技术,新设备。碎磨系统是选矿厂的重要组成部分,投资占全厂总投资的60%左右,电耗占全厂的50%~60%,经营费用占全厂的40%以上。碎磨流程设计是否合理,对选矿厂生产操作及经济效益至关重要。     

高压辊磨工艺在有色选矿厂的应用实践及前景分析

原处理能力14 400 t/d的钼、钨矿选矿厂,增加高压辊磨机超细碎作业后,球磨机给矿粒度由-12 mm变为-6 mm,选矿厂碎、磨系统得到合理匹配,整体处理能力得到有效提升,达到24 000 t/d。论述了选矿厂原三段一闭路破碎工艺(3C-B)改造为高压辊磨粉碎工艺(3C-HPGR-B)的过程,总结了高压辊磨机破碎产品对下游磨矿、浮选作业的节能增效作用,对有色矿山碎、磨工艺的升级改造以及选矿厂节能降耗、扩建增产有一定的借鉴作用。     

城门山铜矿选矿厂碎磨工艺效能分析

阐述了选矿厂采用开路破碎、半自磨加闭路球磨碎磨工艺的设计依据，对扩产到2000t／d后碎磨工艺设备的适应性进行了效能分析，并对扩产后碎磨工艺中存在的问题提出相应的解决措施。     

高寒地区某有色金属矿碎磨流程的研究

针对高寒地区某5万t/d有色金属矿的矿石性质,对可能使用的SABC、HPGR两种碎磨流程从工艺专业和辅助专业的投资及成本进行综合技术经济比较.根据方案比较结果及国内外类似选矿厂的生产经验,该矿的碎磨流程拟推荐SABC方案.     

半自磨(SABC)流程与常规碎磨流程对比分析

德兴铜矿大山选矿厂建有常规破碎磨矿流程和半自磨（SABC）流程两种破碎磨矿工艺，都处于稳定的生产状态中。本文以大山选矿厂正在运行常规碎磨流程对为基础，对比分析半自磨（SABC）流程在在该选矿厂的应用情况。认为半自磨（SABC）流程具有投资小、占地少、见效快和人工成本低及环保效益好的特点，在高度重视环境保护和用工成本快速上涨的时代背景下值得新建选矿厂或扩产项目优先考虑采用。但是其由于钢球消耗大、电耗高和运行成本较高的缺点，选用时需要综合考量。     

以破代磨技改方案在漓铁选矿中的应用实践

针对漓铁选矿厂自磨系统能耗高的问题,提出了以破代磨的改造方案。改造采用三段一闭路破碎及辊磨工艺来替代粗碎自磨—顽石破磨工艺,新工艺大大降低了电单耗、物耗和人力成本,在确保铁精矿产品质量的前提下,年可节约成本453万元左右,实现了达产、达质和达效的目的,为国内选矿厂应用高压辊磨机扩产、降本增效提供了有益参考。     

碎磨工艺现状及发展趋势

碎磨工艺是后续选冶工艺的准备过程或准备作业,必须满足选冶工艺对矿石处理的粒度要求,使矿物充分地单体解离才能获得高质量的选冶产品和高指标。碎磨产品质量直接影响到选矿指标和生产成本,是选矿厂的重要组成部分。本文通过分析选矿厂碎磨工艺流程现状,指出了存在的主要问题:碎磨流程试验研究重视程度不足、建设投资和生产能耗高;噪音和粉尘大污染环境等。针对这些问题,探讨了碎磨工艺有效的应对措施,以满足选别对产品粒度更严格的要求,适应节能、环境、操作更苛刻的条件,并对未来碎磨工艺发展趋势进行了展望。     

磁力弧除铁系统的推广应用

2007年长春黄金设计院首次将磁力弧除铁技术设计到乌努格吐山铜钼矿一期"SABC"碎磨流程中,并取得了成功,2011年的二期扩建工程中进一步将该技术扩展到球磨分级系统中。生产实践表明:磁力弧除铁系统设计理念先进、安装合理,除铁彻底,确保了"SABC"碎磨流程中顽石破碎机的安全和流程畅通,大大提高了碎磨设备的作业率,可为企业创造显著的经济效益,是我国选矿厂除铁技术的重大进步,在冶金、有色和黄金矿山均有极强的推广价值。     

China rare earth market review

正November 1~10,2014Chinese rare earth market was still inactive.Demand for rare earth products was weak.Consumers took a wait-and-see attitude for lower price.As it was an off season for rare earth products,it was expected that prices of rare earth could continue turbulence at the bottom in short terms.Due to a sharp drop,demand for rare earth from downstream recovered.Affected by new energy vehicles,wind powder and energy-efficient appliances,production of rare earth permanent     

China rare earth market review

正August 1~10,2014 There was some good news in rare earth industry recently.Restructuring plans of rare earth groups led by Baotou IronSteel Group and Xiamen Tungsten Group respectively have been approved by MIIT.And rare earth storage policy,which had been expected for a very long time,has been launched officially.Pushed by the good news,rare earth price started to rebound since August 5.Price of didymium oxide and dysprosium oxide rose about 1% to 2%,averagely.About 10% of     

China rare earth market review

正July 1~10,2014Due to weak demand from downstream industry and slow transactions,rare earth market remained weak and price of rare earth products continued to decline.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,     

New energy vehicle:an opportunity for rare earth magnets

<正>Extracted from Securities Guide 1.Popularity of new energy vehicles—an irresistible market trend1.1 Progress of new energy vehicles Chinese Premier Li Keqiang said recently on a visit to Xi'an BYD Autos that new energy vehicles,especially new energy bus,can lessen environment and noise pollution.He encouraged the use of new     

注浆加固技术在十三矿-685 m进风大巷中的应用

针对煤矿开采深度不断向深部延伸,掘进巷道受深部高应力的影响越来越大,巷道围岩整体稳定性差,矿山压力显现越剧烈现象,一般锚网喷加锚索支护无法从根本上控制巷道的变形。总结了平煤股份十三矿-685 m进风大巷注浆加固技术,依据对巷道掘进之后变形监测数据的采集,对巷道变形机理进行分析研究,并对注浆时段进行了合理选择,在对巷道的注浆工艺进行了充分论证的基础上,对巷道进行了注浆。注浆后效果表明:巷道滞后注浆时间段的选择非常重要,巷道在恰当的时间内进行注浆加固施工,能有效控制巷道的变形,巷道注浆后变形量明显减小,岩体的稳定性明显增强,减少了巷道日常维修工作,降低了矿井的生产成本,保障了矿井的安全生产。     

稀散金属产业的观察与思考

分析了近年来国内外稀散金属产业的生产、应用、资源与市场状况.铟锡氧化物靶材、砷化镓晶片、锗红外材料、铼高温合金和硒在电解锰及玻璃的应用等已成为稀散金属的主要应用领域.稀散金属的产量快速增长达到历史高位而导致了市场的失衡.以GaInP_2/GaAs/Ge,CIGS和CdTe为代表的非硅系太阳能电池是稀散金属的新兴应用领域,将给稀散金属带来日益增长的需求.     

China rare earth market review

正November 21~30,2014Due to weak demand from downstream industries,transactions of rare earth in Chinese domestic market were inactive.It was difficult to sell any rare earth products except for dysprosium oxide and terbium oxide.Suppliers lost confidence in recent market.Demand for rare earth products was soft.Consumers continued to take a wait-and-see attitude.Rare earth export market remained slow.     

Current situation and future trend of China rare earth luminescent materialindustry(continued)

<正>Developing ecological lighting source The world is facing the big problem of energy shortage today and the contradiction between economy development and environmental protection is worsened.Therefore,people are more likely to choose an ecological light source that is more energy efficient and environmental friendly.The choice provides great opportunity for the development of rare earth optical material industry in China.The concept of green lighting positions rare earth luminescent material as a leading player in illumination market.The light source of both rare earth luminescent lamp and LED lamp is ecological and energy saving.This is why     

Galaxy Magnets achieved the net profit of 34.02 million yuan in the first six months of 2014

正Galaxy Magnet announced its financial results for the first half of 2014 on August 14.For the first six months ended on 30 June 2014,Galaxy Magnet achieved operation income of RMB 182.3 million,up8.40% over the same period of 2013,and the net profit attributable to the shareholders of the listed company of 34.02 million yuan,increasing 35.49% over the same period of last year.Stable performance increase was led by development of new customers and application market of magnets.     

Rare Earth Application in Steel in China

<正>China has rich rare earth resources.Output of rare earth and steel in China ranks the top first in the world.However,there is still certain distance between the steel produced in China and developed countries from the point of varieties and quality.China still has to import some types of steel.Improving the quality should be emphasiZed in future development of steel industry in China.Rare earth can be used to upgrade traditional steel