新一代钻装锚机组诞生

兖州矿业（集团）公司北宿煤矿等单位共同研制的JZZ—50型全液压钻装钱机组，适用于煤矿。冶金矿山、地质勘探、铁路隧道、水利和国防建设等工程的岩石巷道掘进，达到了目前国内同类设备的先进水平。已由专家通过了技术鉴定。这种钻装锚机组以液压为动力，采用YYG50型导轨式液压凿岩机钻凿各个方位的炮眼和铺杆眼，耙斗装岩，边双链刮板输送机转载，轨轮自动行走。与国内其它型号的钻装锚机组相比较，由于开展了液压凿岩机、液压系统及元件、钻臂与推进器。行走机构、装载系统等方面的研究攻关，新一代的钻装钱机组凿岩速度快、能量利用…     

浅谈JZZ─2型钻装机的设计

浅谈ＪＺＺ─２型钻装机的设计煤科总院上海分院张裕芳我国从７０年代开始研制了多种钻装机，其中用放中小断面巷道掘进的ＪＺＺ－２型双臂全液压钻装机是最新的一种。该机不但采用了液压凿岩机，而且结构简单，可靠性高，操作方便，维修容易，所以技术鉴定后又推广了一台...     

高突煤矿煤巷掘进防突钻装锚机组

介绍高突煤矿煤巷掘进防突钻装锚机组的结构、性能特点以及现场使用情况。经使用,该钻装锚机组适用于煤矿井下的高突掘进工作面,并提高了工作效率。     

JZZ－2型钻装机在北宿煤矿使用情况

ＪＺＺ－２型钻装机在北宿煤矿使用情况兖州矿务局北宿煤矿何良农，肖秉海煤矿开拓中岩石平巷的掘进占有很大的比重、其掘进方法目前仍以钻爆法为主。近十多年来国内外在大断面掘进机械化中主要使用液压钻车和大容量的铲斗机进行配套作业，而对于中小断面的掘进国外已发展...     

装岩机隔爆兼本安型真空开关的研究

随着掘进机械化的发展以及采煤机械化的成功，在煤矿岩巷掘进中，诸如打眼用的钻车，装岩用的装岩机、转载机及装、钻、锚机组等不断得到广泛应用，但原先配套的防爆电器基本上还停留在五、六十年代的水平上，普遍适应不了现代掘进设备的需要。     

煤矿硬岩巷道钻装锚一体机研究与应用

煤矿用岩巷钻装锚一体机是一种集钻孔、出渣、锚护等功能于一体的综合掘进装备,为解决硬岩巷道机械化施工作业难题进行了探索。钻装锚一体机在五阳煤矿82采区2~#回风大巷进行应用,月进尺达到103 m。经过实践应用,钻装锚一体机较现有作业线在硬岩巷道快速掘进、减员提效、降低生产成本、安全生产方面具有明显的优势,具有推广应用价值。     

锚杆转载机组在巷道掘进过程中快速支护的应用

我国的传统巷道掘进采用掘进机+单体锚杆钻机的方式，巷道锚护采用单体锚护钻机需要多人配合完成，费时费力且锚护效率低。同时掘进时无法锚护，锚护时无法掘进。锚杆转载机组从根本上解决了这一突出问题，实现了掘进时的锚杆同步锚护，搭载多个钻臂可实现多钻臂同时锚护作业，大大提高了锚护效率。锚杆转载机组在黄陵二号矿使用过程中，锚护效率提高到传统锚护的2倍以上，给矿方带来了可观的经济效益。     

ZZM8-12型钻装锚机组简介

<正> ZZM8-12型钻装锚机组具有钻炮孔、装载矸石和打锚杆支护孔的功能。它适合于井下8～12m~2断面岩石平巷的掘进施工,也可用于冶金、铁路、国防、水利等部门的井巷隧道施工。此机组由湖南省煤矿基本建设公司和湘潭煤矿机械厂联合研制成功的。1985年3～9月在江苏省煤炭基本建设公司第一工程处施工的马坡矿进行了工业性试验。37人组成的掘进队达到月进尺百米的水平(最高月进尺102m),月平均掘进工效达每312.31m~3。1985年11月9日煤炭部技术司、基建司组织了产品鉴定。鉴定指出:它“是加快岩巷掘     

国产EBJ-120型掘进机实施掘锚一体化技术

介绍了在国产EBJ-120掘进机上加装锚杆钻臂系统,并通过加装过程中对锚杆钻臂系统的结构改进、工艺改进等手段,实现掘、支、锚一体化技术的合理应用,为寻求适合潞安煤层条件的掘锚一体化煤巷掘进机组提供了一条途径。     

硬岩巷道快速掘进设备及施工关键技术研究

为了解决煤矿硬岩巷道掘进施工效率低、成本高、安全隐患大的问题,研制了集钻孔、锚护、挖掘、运料等功能于一体的智能化钻装锚掘进机,与大直径中深孔爆破技术、高效运输方案、平行作业方案等相结合,形成硬岩巷道智能化快速施工工法。以五阳煤矿为工程应用对象,分别采用智能化钻装锚掘进机的一体式机械化作业方案和含常规多种设备的分体式机械化作业方案进行掘进试验,结果表明一体式机械化作业方案施工效率高、成本低、作业安全性高,为硬岩巷道安全高效掘进提供了有力的技术支撑。     

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     

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.     

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.     

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