DTⅡ-1000型带式输送机的综合评定

经对DTⅡ-1000型带式输送机的综合评定,得出结论:DTⅡ-1000型带式输送机宽带B=1000mm,v=2.0m/s,N=2×110kW,L=530m,β=13°,Q=300t/h,满足生产要求;输送带选用1600SPVG阻燃防静电输送带,额定拉断力Sn=1.6×106N,满足强度要求。     

天安煤矿矿井提升设备能力的核算

经对天安煤矿矿井提升设备能力的核算后,得出结论:主提升设备SPJ-800型带式输送机1,台能满足矿井能力需求;副斜井提升设备JK-3/2.2型单滚筒提升绞车1台,也能满足运输材料、支架、矸石、人员的要求。     

大功率长距离带式输送机在综采面的应用

通过张双楼煤矿9111综采工作面采用一部SSJ1000/2×200型可伸缩带式输送机代替三部SPJ-150型胶带输送机,ZSS-764/132转载机代替150刮板输送机的实践,分析了大功率、长距离带式输送机在综合机械化采煤工作面顺槽运输中的应用情况、结构特点及经济效益.     

普通SPJ-800/55带式输送机尾架改造和EBJ-120TP型掘进机的配套使用

根据普通SPJ-800/55带式输送机在井下与迎头溜子、综掘机配套使用过程中出现的矛盾,提出对普通SPJ-800/55可伸缩带式输送机尾架进行改造,使其直接与综掘机连接配套使用,在现场使用的过程中取得良好的效果,并节省了大量人、财、物的投入。     

绳架吊挂大倾角下运带式输送机的研制与应用

新汶矿业集团华丰煤矿部分煤层倾角较大,如 -450m水平五采区,巷道长度为 110m,巷道倾角为 -20°,输送量为350t/h。在选择输送机时,根据此矿的设计能力及这条带式输送机不是很长的实际情况,决定利用SPJ-800 /2×30型带式输送机进行改造,机身采用钢丝绳吊挂型式。大倾角下运带式输送机的运行特点是电动机处于负力运行状态,即发电运行状态,重载紧急制动或突然停电时,输送机在货载作用下,会加速下滑发生飞车现象,下运倾角大,停车制动时,物料与胶带间易产生滑动。要在运行和制动过程中物料不与胶带产生相对滑动,一是设计绳架吊挂式深槽托辊,以…     

同步传动齿轮在带式输送机的应用

带式输送机在现代化矿井生产的地面运输、井下运输和斜井运输中发挥着重要作用。带式输送机的关键部件是同步传动齿轮。煤矿井下现场处理问题时为了节约时间,因对该部件的作用不了解,往往被卸下后不再安装了,其实这种做法是错误的,下面以SPJ-800型带式输送机为例,分析使用传动齿轮的重要性和必要性。     

露天煤矿带式输送机结构布置及相关参数设计分析

带式输送机是露天煤矿外运煤炭的重要机械,可有效提高采煤效率。为保证输送机的运输能力达到要求,需要对相关参数进行设计。本文以云南省先锋露天煤矿输煤生产系统的带式输送机设计参数为分析基础,通过介绍带式输送机的主要结构和布置原则,分析对比各槽型皮带槽型的运量,确定本项目采用槽角"半圆形槽"输送机,且托辊转速n=180～200r/min,间距1.2m。设计参数满足实际使用要求,可为以后类似工程设计提供了必要技术参考。     

关于高档普通机械化采煤工作面回采工序安排的探讨

王晁煤矿1017工作面倾斜长120m，走向长510m，直接顶为中细粒砂岩，厚约30m，部分含有0～1．2m厚的泥岩，属于Ⅱ级Ⅱ类顶板，中等稳定。煤层倾角6～8°。煤层厚度6～8m，硬度f=0．95，采用倾斜分层走向长壁下行垮落采煤法，工作面为第一分层，采高2．0m。工作面机械设备选用MG150-WI型议滚筒无链牵引采煤机，5GB-630/220-WS型双边链刮板输送机，机巷采用SGB-80T型刮板输送机和SPJ-800型吊挂胶带输送机运输。工作面选用DZ22型单体液压支拄配合HDJB-1000型金属铰接顶梁支护。[第一段]     

大倾角带式输送机在南阳坡矿的应用与探讨

为了满足煤矿生产的需求,我国煤炭行业大倾角带式输送机的应用越来越普遍,驱动电动机功率和运行速度越来越大。介绍了大倾角带式输送机的结构特点、分类,针对南阳坡矿主斜井带式输送机不能满足矿井原煤运输任务的要求,对带式输送机进行技术改造,改造后输送带宽度由1 000 mm提高到1 400 mm,输送带强度由2 500 N/mm提高到3 500 N/mm,输送带速度由2.5 m/s提高到3.15 m/s,输送能力由750 t/h提高到1 200 t/h,驱动电动机功率由2台500 k W提高到4台500 k W。改开关直接启动的控制系统为ATV71变频器软启动控制,控制系统改用"直流电动机+可控硅变流+全数字调节+PTC控制+上位机监控"的全数字控制技术,增加2个变频控制柜和3个开关控制柜,满足了高产高效矿井运输的需要。     

TD75型带式输送机清扫系统的改进

塔东矿业公司有6台TD75型带式输送机,承担着将陶瓷过滤机过滤后的铁精矿、硫精矿输送到精矿仓的任务。该机带宽800mm,水平输送距离10 m,输送速度1.25 m/s,运送物料最大块度1mm,物料含水10%左右。该带式输送机清扫装置包     

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