SSG型高频振动水力筛分机的研究及应用

ＳＳＧ型高频振动水力筛分机是一种新型细粒物粒筛分设备，它具备筛分和水力预分级功能，但又严格按颗粒的几何尺寸筛分物料。该机筛网直立于料浆中，并做高频振动，小于筛孔的物料在上升和横向水流作用下通过筛网，沉降末速大于上升速度的粗粒呈流态化排了。该机适于细粒及遍平状难筛物料的筛分，筛分粒度为０．０２－０．３ｍｍ。筛分白云母、石墨、     

细粒物料筛分技术和设备述评

针对矿石细粒物料分级在选矿过程中的重要性,论述了我国铁矿石细粒物料分级设备的发展和现状.介绍了MVS型电磁振网筛、流化床水力分级机、德瑞克高频振动细筛等的特点及使用情况,阐述了筛网在筛分分级作业中起着至关重要的作用及发展方向.     

临界尺寸动态变化技术在振动筛上的应用

我国的筛分技术,在从上世纪70年代开始先后研制出了以圆振动、直线振动为主的振动筛。采用了概率筛分法、等厚筛分法用以对付细粒级、难筛分的物料,如各种焦碳、生矿、球团和烧结矿等。作为振动筛心脏部分的筛网更是出现了各种形式的编织筛网、条形筛网、棒条筛、橡胶及聚胺脂弹性筛网、梳齿筛网等。但它们都建立在筛网网孔尺寸相对静止不变的基础上。     

悬臂筛网振动筛筛分效率研究

介绍了悬臂筛网振动筛的结构特点。通过分析物料颗粒在筛面上的跳动透筛过程 ,建立了物料在悬臂筛网振动筛筛面筛分时的筛分效率数学模型 ,并分析了筛面倾角、振动方向角、筛棒长度和直径等各因素对筛分效率的影响 ,建立了相应的变化曲线图。     

弹性弛张筛网干法筛分小粒度难筛物料运动原理解析

鞍矿机械公司在研制干式筛分难筛物料--弛张筛课题中,剖析弹性弛张筛网动态抛掷物料的筛分原理.在理论、计算数据、运动图表、实际作业等方面充分证实:改变传统刚性筛网振动抛掷物料和物料同相位小振幅跳动筛分等方法,选用弹性弛张筛网高加速度抛掷物料,使物料以不同相位高幅值飞行,产生碰撞分离粉料、小颗粒和大颗粒,并以高位差冲击透筛的方法,是解决干式筛选各种含水、含粉、泥小粒度物料难题,实现高效筛分的最佳方案.     

细粒难筛物料筛分机械的发展现状

本文分析了国内外潮湿细粒级粘性物料筛分设备的发展过程,目前急诗解决的技术问题和我国筛分技术的现状,指出,细粒级粘性物料的干法筛分是当今国内外筛分技术的难点．提出,采用大振幅,大振动强度和较低频率的筛分机械是解决细粒筛分问题的关键。采用动力学平衡结构使筛面振动,筛箱和机架不参与振动是实现筛分机械大型化,保护古老地基的最佳方案。     

BS2.5×6博后筛在北宿煤矿的应用与评价

BS2.5×6博后筛采用大振幅、大振动强度、低频率的新工艺。其筛分过程不同于普通物料筛分,它没有分层过程,只有松散和透筛,颗粒与筛网之间单颗粒碰撞,不象普通筛分那样物料整体运动,大振幅和激振强度的增加,加快了物料与筛面间的运动速度,物料筛分的过程。     

GPS—1400—3型高频振动细筛在二段分级中的应用

本文介绍了ＧＰＳ－１４００－３型高频振动细筛的结构，主要技术参数，工作，工业试验和生产情况。实践表明，该机作为二段分级设备，比水力旋流器优越，分级效率高，返矿量少，没有反富集，被认为是细粒物料的有效分级设备。     

弹性驰张筛网干法筛分小粒度难筛物料运动原理解析

鞍矿机械公司在研制干式筛分难筛物料－张筛课题中,剖析弹性驰张筛风动态抛掷 物料的筛分原理。在理论、计算数据、运动图表、实际作业等方面充分证实：改变传统刚性筛网振动抛掷物料和物料同相位小振幅跳动筛分等方法,选用弹性驰张筛网高加速度抛掷物料,使料料以不同相位高幅值飞行,产生碰撞分离粉料,小颗粒和大颗粒,并以高位差冲击透筛的方法,是解决干式筛选各种含水、含粉,泥小粒度物料难题,实现高效筛分的最佳方案。     

GPS－1400－3型高频振动细筛在二段分级中的应用

本文介绍了ＧＰＳ－１４００－３型高频振动细筛的结构、主要技术参数、工作原理、工业试验和生产情况。实践表明，该机作为二段分级设备，比水力旋流器优越，分级效率高，返矿量少，没有反富集，被认为是细粒物料的有效分级设备。     

Current situation and future trend of China rare earth luminescent material industry

<正>Rare earth luminescent material is one of the most important application sectors of rare earths.China enjoys the exceptional advantage to develop rare earth luminescent material for its abundant rare earth resources.After several decades'endeavor,China's rare earth luminescent material industry,headed by rare earth phosphor for lamp and LED and high efficient rare earth energy-saving light source,has been gradually developed into a scale industry.China has become a major production base of rare earth phosphor for lamps and rare earth     

China rare earth market review

正June 1~10,2014Rare earth market remained weak.Quoted price of rare earth products was similar to that in May.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,polishing powder and ceramic industries remained inactive.Demand from downstream industry was soft.Consumers purchased on their needs.Suppliers had strong intention to sell.Prices of rare earth products     

Annual Report analysis of Chinese rare earth-related listed companies in 2013

<正>Chinese rare earth-related listed companies have published their 2013 annual reports.It can be understood from their reports that production and operation activities of Chinese rare earth-related companies were still heavily affected by macro economy and industrial policies.They basically followed the steps of national economy.In 2013,world economy recovered slowly but the economy     

Market opportunities and challenges for rare earth polishing powder

正1.Status of rare earth polishing powder Rare earth polishing powder with high content of cerium oxide began to replace iron oxide for glass polishing and became one of the key materials in glass polishing process since 1940.Compared with traditional iron oxide,rare earth polishing powder has many advantages,such as fast polishing rate,high polishing quality and long service life.It can achieve good surface quality and improve operation conditions.For example,in lens polishing,the polishing work that cerium     

Baotou Research Institute of Rare Earths developed a new RE alloy preparation technology

正Pyrometallurgy Laboratory of Baotou Research Institute of Rare Earths had independently developed a new preparation technology of rare earth alloy for NdFeB.The alloy can remarkably enhance the coercivity of NdFeB magnet but also evidently reduce the production cost of the magnet.The new master alloy was prepared in the kA pilot-scale electrolytic cell by the independent technology.The rare earth master alloy can be used as the raw material for NdFeB.Compared     

Market and recycling of NiMH battery

<正>Market status and future trend of NiMH battery1.Global market of small NiMH battery Global market size of small NiMH batteries declined year on year since 2011.The trend will continue to 2018,at the rate of 5%to 10%annually.Demand for small NiMH batteries will be stable gradually.Many electrical apparatuses are powered by the built-in lithium battery today,which is the main reason for the shrunk market of small NiMH batteries.But,for some products,small NiMH     

China rare earth market review

正September 1-10,2014 Affected by the National Day holiday,rare earth transaction was stagnant and the market showed a weak steady state.As there was no good news for downstream market,some products with flat demand would likely rally slightly for some time to     

2014 second batch of rare earth quota released

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矿用防爆轴流对旋主要通风机叶片ANSYS模态分析及应用

高效节能矿用防爆对旋主要通风机的叶片是主要通风机运行的关键部件,叶片在运行时不断受到气流的作用力,从而使叶片产生振动,当叶片振动的频率与叶片的固有频率接近时,容易产生共振从而导致叶片的断裂。一旦叶片断裂时,对主要通风机的安全运行产生致命的影响,从而导致矿山、化工等企业发生重大事故,将会产生不可估量的损失。基于有限元分析软件ANSYS,对高效节能矿用防爆轴流对旋主要通风机叶片进行模态分析及产生对应的六阶模态频率,对主要通风机叶片的运行频率、固有频率及产生的共振问题进行了原理分析,并且解决了叶片频率共振的问题,从而为主要通风机叶片结构设计提供理论依据,并对主要通风机叶片的安全运行提供保障。     

2013 NdFeB export analysis

<正>China totally exported nearly 24,000 tonsof NdFeB products during 201 3,including 18,825 tons of permanent magnet,valued USD 1.34 billion at an average price of 71.4 USD/kg;3,277 tons of NdFeB magnetic powder,valued USD 1 01 million at an average price of 30.9 USD/kg;1,334 tons of strip casting ribbon,with total export value of USD 74million at an average price of 55.3 USD/kg;and 586