安全生产隐患排查系统设计与实现

本文针对矿山企业安全生产的现状,结合先进的管理技术和管理信息系统发展趋势及矿山安全规程的规定,提出了隐患排查系统开发的目标。通过系统开发目标,进行可行性分析和需求分析,设计了系统功能模块,并绘制了数据流程图,完成了数据字典。最终,利用JAVA Struts技术和SQL Server数据库技术,设计开发了基于B/S模式的矿山安全隐患排查系统。通过对隐患的录入、整改、复查和查询的全过程管理,使矿山企业生产存在的安全隐患能被及时、有效的反应,并被迅速处理,在一定程度上避免了重大安全事故的发生,具有较好的经济与社会效益。     

井下无轨胶轮车占道闭锁信号装置的改进

煤矿井下辅助运输无轨防爆胶轮车信号闭锁系统,是近年来普遍应用于井下无轨防爆胶轮车运输系统的安全保护设施。介绍了一种设计简单、动作可靠的新型胶轮车弯道信号闭锁系统,可以避免由撞车或追尾所带来的人员伤亡及严重影响生产的安全隐患。     

煤矿特种建筑物非正常破坏的原因及预防

分析了煤炭生产中储煤场生产结构物产生非正常破坏、倾斜的原因,并提出了预防措施,以避免经济损失,消除安全隐患.     

主井提升系统增效优化改造

瑞隆矿主井提升能力未达到矿井设计要求,提升系统与矿井生产矛盾突出,且由于主井建设期间设计缺陷和安装等因素,提升系统存在诸多安全隐患。针对这一问题,对提升系统进行了优化改造,提升事故率大大降低,生产受影响时间也大大缩短,消除了安全隐患,有效缓解了矿井生产的瓶颈,给矿井的生产安排提供了更大的灵活空间。     

综采工作面照度对人的视觉识别性影响

为深入了解综采工作面的照度对人的视觉识别性影响,以采煤机操作平台上的各类显示器作为刺激材料来设计试验;利用眼动追踪系统,通过Eye LinkⅡ型高速眼动仪分别采集并分析不同的照度条件下被试验者对刺激材料的眼动数据;并结合视觉感知系统,得出照度为工作面中的局部照明照度保持在70 lx以上,有利于提高工人视觉辨识力、及时发现和识别周围环境中的不安全因素,从而消除安全隐患避免安全生产事故的发生。     

煤仓仓位监测显示系统

1引言 针对煤仓仓满而引发生产安全隐患这一情况,我公司在未添置新型昂贵的雷达仓位监测仪的情况下,利用现有的PYZB-1型皮带监控仪和KJ90型瓦斯监测系统,有效地实现了自动控制煤仓装煤仓位,避免了因溜煤上山堵塞而影响工作面正常生产,现将该系统的应用情况作介绍,供参考.     

煤矿副井口出车报警装置的设计与应用

副井提升系统是整个矿井生产工艺流程中的一个重要环节,新庄煤矿副井口出车侧设计为弯道,加之一墙之隔,阻断了人员的视线,埋下了安全隐患。利用矿用位置传感器配合本安型磁性传感器设计出一种出车声光报警装置,消除了生产中的潜在安全隐患,为矿井安全生产提供了保障。     

网络多媒体在煤矿信息化系统中的设计与应用分析

主要介绍了网络多媒体在煤矿信息化系统中的设计与应用,重点介绍了目前我国煤矿行业中的现状和存在的安全问题以及网络多媒体在煤矿信息化系统中的具体应用,我国煤矿产业在生产的过程中,由于技术和设备问题的限制,还存在一些安全隐患,将网络多媒体应用在煤矿信息化系统中的设计中,就可以在一定程度上避免这些问题的出现,那么我国煤矿产业的发展就能在很大程度上得到促进。     

矿用传感器双电源供电自动切换的设计

针对采掘工作面传感器提供两路供电电源,一路为专用电源,一路为备用电源。设计了两路电源之间能够实现自动切换,避免因传感器自动断电造成环境监测的中断,系统进行故障闭锁,进而切断采掘工作面及其回风巷内的所有非本质安全型电气设备,影响生产和环境监测,产生安全隐患。     

露天煤矿电气系统事故隐患成因及安全策略

分析了露天煤矿电气系统中出现的安全隐患、煤矿电气系统出现事故隐患的原因,提出了降低露天煤矿电气系统事故隐患的策略.煤炭企业可以通过避免火灾事故、避免泄漏事故,达到减少露天煤矿电气系统出现安全隐患的目的.     

China rare earth market review

正November 1~10,2014Chinese rare earth market was still inactive.Demand for rare earth products was weak.Consumers took a wait-and-see attitude for lower price.As it was an off season for rare earth products,it was expected that prices of rare earth could continue turbulence at the bottom in short terms.Due to a sharp drop,demand for rare earth from downstream recovered.Affected by new energy vehicles,wind powder and energy-efficient appliances,production of rare earth permanent     

China rare earth market review

正August 1~10,2014 There was some good news in rare earth industry recently.Restructuring plans of rare earth groups led by Baotou IronSteel Group and Xiamen Tungsten Group respectively have been approved by MIIT.And rare earth storage policy,which had been expected for a very long time,has been launched officially.Pushed by the good news,rare earth price started to rebound since August 5.Price of didymium oxide and dysprosium oxide rose about 1% to 2%,averagely.About 10% of     

China rare earth market review

正July 1~10,2014Due to weak demand from downstream industry and slow transactions,rare earth market remained weak and price of rare earth products continued to decline.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,     

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     

注浆加固技术在十三矿-685 m进风大巷中的应用

针对煤矿开采深度不断向深部延伸,掘进巷道受深部高应力的影响越来越大,巷道围岩整体稳定性差,矿山压力显现越剧烈现象,一般锚网喷加锚索支护无法从根本上控制巷道的变形。总结了平煤股份十三矿-685 m进风大巷注浆加固技术,依据对巷道掘进之后变形监测数据的采集,对巷道变形机理进行分析研究,并对注浆时段进行了合理选择,在对巷道的注浆工艺进行了充分论证的基础上,对巷道进行了注浆。注浆后效果表明:巷道滞后注浆时间段的选择非常重要,巷道在恰当的时间内进行注浆加固施工,能有效控制巷道的变形,巷道注浆后变形量明显减小,岩体的稳定性明显增强,减少了巷道日常维修工作,降低了矿井的生产成本,保障了矿井的安全生产。     

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.     

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.     

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