矿用液压链条锯的研制及应用

矿用液压链条锯是用于煤矿井下辅助施工的液压驱动切割工具。介绍了其工作原理和结构设计,并与传统手工作业的使用效果进行对比,结果显示该装备使用安全可靠、切割效率高、一次切割深度大、开槽成型好、精度高、费用低,能广泛应用于工程和矿山施工作业,特别适合井下各类岩巷、煤巷密闭的掏槽。     

矿用应急电源防爆外壳关键参数设计及验证

针对传统矿用电气设备防爆外壳设计方法存在的缺陷,以及现有设计人员对矿用应急电源防爆外壳设计经验不足等问题,运用静力学原理对防爆外壳进行了受力分析,提出矿用应急电源防爆外壳壁板、加强筋板、法兰和连接螺栓等主要零部件的关键参数设计计算方法,经试验验证,按该方法设计的防爆外壳符合要求,且节省材料。     

我国矿用应急潜水泵存在的主要问题及对策

根据国内矿山应急潜水泵性能现状,分析了我国矿用应急潜水泵在机动性、可靠性和适应性,以及标准规范体系建设等方面存在的问题,探讨了矿用应急潜水泵的装备技术发展方向,并提出了提高矿用应急潜水泵装备技术水平、提升其应急排水救援能力的解决对策。     

基于WiFi技术的矿井无线救灾通讯系统研究

根据矿井救援工作的实际需要,设计了一种便携式矿用救灾无线通信系统。该系统采用WiFi网络宽带无线通讯技术,快速组建井下应急救援指挥平台。其系统组成部分包括无线基站、WiFi手机、WiFi摄像头、多参数传感器、防爆笔记本电脑和系统软件,可实现语音通话、视频监测和多参数检测功能。应用结果表明,该系统功能合理、布设方便、成本低、可靠性高,适合井下应急救援指挥需要。     

防爆盖自动启闭控制在应急救援中的应用探讨

针对防爆盖由于启闭不及时、启闭卡槽等以致其不能在煤矿应急救援中发挥作用的问题,基于主要通风机防爆盖自动控制的理论研究和现场实践,介绍了防爆盖自动启闭控制及其自动开启、闭合、锁紧等功能,并结合煤矿应急救援应急资源丰富、体系反应快速等特点,构建了一套基于防爆盖自动启闭控制的应急救援体系。通过对地面远程监控系统架构、远程监测监控系统数据流程和防爆盖应急救援响应程序的描述,探讨介绍了防爆盖自动启闭控制系统在煤矿应急救援体系中的应用过程。结果表明:防爆盖的自动启闭控制在应急救援中的应用,理论上能够为灾后人员救护、抢险救灾等工作的顺利进行创造良好条件,能够最大限度地减少煤矿事故造成的人员伤亡和财产损失,可扩展应用到煤矿行业应急救援体系的建设,具有广泛的应用前景。     

矿用防爆三轮车通过鉴定

山西卓里集团开发研制的矿用防爆三轮车日前通过了国家煤炭检测中心的技术鉴定,并投入煤矿井下作业试验。ＦＢ950型矿用防爆三轮车是一种适用于煤矿井下运输使用的机动车辆,具有坚固耐用、整机性能优良、动力防爆系统安全可靠等特点。据检测,以年产10万ｔ的小型煤矿为例,...     

矿用救援轻型快速成套支护装备的研究与设计

针对国内应急救援用支护装备普遍存在不具备煤矿安全资质、体积大、操作复杂等问题,设计了一套安全、便携的新型矿用救援轻型快速成套支护装备,介绍了该成套支护装备的总体结构和相关技术特点,对成套支护装备的液压支柱和支柱的自锁装置等关键结构进行了介绍。通过样机测试和国家安全生产矿用设备检测检验中心的安全与性能检验结果表明,该支护装备的各项性能满足设计要求,符合国家煤矿安全标准的相关规定。     

矿用液压链条锯的应用与推广

1 液压链条锯的用途 JYL-10／4000型隔爆多功能液压链条锯以液压油为动力，以带有金刚石刀头的锯链和木材专用锯链为切割部件，用于硬度≤12MPa的各种岩石切割和半煤岩巷道的浅孔辅助开挖以及各种木材的切割。由于其操作的便捷性和完善的配置，又广泛地扩展到了矿山井下或地面的其它辅助施工作业中，如：矿山护理、巷道修理、钢梁铺设预埋孔的开挖、地脚螺栓孔的开挖、少量块煤的开采、电缆预埋槽、断面直径≤500mm的木材切割等等。     

CTY9220型矿用应急救援车的研制

介绍了CTY9220型矿用应急救援车的功能和系统组成,包括牵引系统、压风系统、供配电系统、应急通信系统、集中控制系统等。救援车通过井下避难硐室的专用钻孔与硐室对接,可以实现与硐室的音频、图像通信;接收井下环境状态和作业人员位置信息;洁净水、流食等物资和电力的供给。CTY9220型矿用应急救援车显著提高了地下避难硐室的使用时限,可作为应急救援系统的次级指挥中心指导救援工作。     

矿用井下防爆无轨胶轮车运输安全技术分析及发展趋势

矿用井下防爆无轨胶轮车是一种经济实用、安全高效的巷道运输车辆,它的使用简化了采矿过程,增加了采矿的产能和作业的安全性,对于煤矿井下作业有着十分重要的意义。文章对矿用井下防爆无轨胶轮车在应用中的安全技术进行分析,经过工业性试验得出矿用井下防爆锂离子蓄电池无轨胶轮车具有效率高、无污染、可靠性高、温升低、重量轻、操控简单、维护使用成本低等优点,市场应用前景极其广泛。因此,矿用井下防爆无轨胶轮车的电动化已成为近几年煤矿井下辅助运输装备的发展趋势。     

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     

Brief news

正Corun invested another 50 million yuan in power battery for HEV Hunan Corun announced on 27 June that they had signed the cooperation agreement to jointly built Corun(Shaoxing)Autos Power Battery System Co.,Ltd.in Shaoxing Binhai New City.According to the announcement,total registered     

铜熔炼中锍品位对杂质元素分配行为的影响

借助于多相、多成分系统中平衡计算的手段，开发出微量元素砷、锑、铋及伴生元素铅、锌等在铜熔炼中分配行为的计算机模型。利用该模型对铜熔炼过程进行计算机模拟，分析了冰铜品位对砷、锑、铋、铅和锌等杂质元素的分压、活度系数及它们在冰铜、炉渣和气相中分配率的影响，并讨论其热力学分析结果对生产实践的指导意义。     

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