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从管磨机粉磨相关行业入手,说明管磨机通风量与通风方式研究的工程应用价值。为实现管磨机粉磨系统优质高产低耗,分别阐明管磨机通风量与通风方式的影响因素,进而说明管磨机适宜的通风量对系统效益的重要作用。从管磨机粉磨工艺及其装备角度出发,提出保证管磨机通风效果的途径与方法,将对管磨机粉磨相关行业技术进步带来积极影响。 相似文献
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围绕水泥成品的优质高产低消耗,说明了管磨机内物料与研磨体的充分接触是提高管磨机工作效率的必要条件。详细阐明了管磨机"风洞"形成过程与"跑粗"的形成原因,强调了管磨机粉磨系统处理能力平衡与粉磨系统性能稳定对提高管磨机工作效率的重要性,并依此对管磨机研磨体级配、衬板选择、隔仓板与出磨篦板结构改进等方面提出了有益的建议,必将对管磨机相关行业技术进步带来重要影响。 相似文献
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围绕提高水泥行业粉磨系统的经济效益问题,分别介绍了管磨机主要易损件衬板、研磨体、隔仓板与出磨篦板等的选用原则,进一步阐明了管磨机工作状态稳定对系统效益的重要作用。从设备角度提出保证管磨机工作状态稳定的途径与方法,将对管磨机相关行业的技术进步带来积极影响。 相似文献
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当前水泥粉磨应用的管磨机主要采用边缘传动、中心传动两种传动形式。本文围绕管磨机粉磨系统优质、高产、低消耗,从理论与实践两个方面,分析管磨机的不同传动形式在投资、效益等方面的差别,进而说明了管磨机适宜传动形式对系统效益的重要作用,必将对管磨机粉磨相关行业技术进步带来积极影响。 相似文献
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管磨机是一种低速重载长期连续运转的粉磨机械,是水泥厂的关键设备之一。中心传动管磨机主减速机膜片联轴器弹性膜片,是管磨机系统的重要部件。随着水泥行业的发展和技术的进步,管磨机的规格越来越大,弹性膜片的制造和安装质量,以及日常维护情况,对管磨机的安全稳定运转影响极大。一般情况下,水泥厂都不准备弹性膜片的备件,弹性膜片断裂将会造成整个管磨机系统停产,其检修难度大、 相似文献
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低碳低合金钢衬板在氧化铝生产中管磨机上的应用 总被引:1,自引:0,他引:1
管磨机在粉磨物料时,磨机衬板磨蚀很快,衬板的消耗量也很大。本文针对高锰钢衬板的损坏原因进行了分析,指出了锰钢材料作为衬板的不适应性,并对低碳低合金钢在管磨机上的试验使用情况作了介绍。生产实验表明,低碳低合金钢衬板的使用寿命可以达到高锰钢衬板的2倍以上,在一定程度上,低碳低合金钢可以取代高锰钢作为磨机衬板的材料。 相似文献
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管磨机是被广泛应用于冶金、采矿、化工、建材和水泥等行业的重要设备,筒体是其非常关键的部件。筒体承受着整个管磨机的运转动载荷,在交变应力作用下连续运行,它是质量要求比较高的部件,同时也是比较容易发生问题的部件。据了解,有许多厂家的管磨机发生过筒体裂纹故障。简体裂纹是管磨机非常严重的发备故障,必须立即停机检修,以免造成重大的设备事故。处理简体裂纹的技术要求高、检修周期长、劳动强度大、费工费时,处理不好还容易继续引发各类设备故障,妨碍管磨机安全运行,严重影响生产。我厂的φ2.4×12 m管磨机也发生过筒体裂纹故障,经过认真细致 相似文献
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<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 相似文献
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《中国稀土信息(英文版)》2014,(6)
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 相似文献
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YANG Li 《中国稀土信息(英文版)》2014,(6)
<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 相似文献
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Gao Wei 《中国稀土信息(英文版)》2014,(11)
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 相似文献
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《中国稀土信息(英文版)》2014,(8)
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 相似文献
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Bai Wenping 《中国稀土信息(英文版)》2014,(12)
<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 相似文献
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《中国稀土信息(英文版)》2014,(9)
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 相似文献
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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。 相似文献
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Chen Zhanheng 《中国稀土信息(英文版)》2014,(5)
<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 相似文献