专利信息

正一种多组料仓卸料小车的控制方法专利号:ZL201510352486.X专利权人:南京梅山冶金发展有限公司宝钢集团上海梅山有限公司上海梅山钢铁股份有限公司设计人:胡荣卓本发明公开了一种多组料仓卸料小车的控制方法,通过小车轨道两侧各安装限位开关,进行安全保护。在小车从动轮安装编码器,记录小车行     

卸料机钢丝绳的使用维护与点检管理

宝钢原料码头的单悬臂自行小车式抓斗卸料机是从日本石川岛播磨重机引进的。现有生产率为1200t/h和1800t/h卸料机各2台,适合卸2～10万吨级散装货轮。本文讨论卸料机钢丝绳的使用管理和点检维护。一、卸料机抓斗启闭钢丝绳的特点     

专利信息

正一种多组料仓卸料小车的控制方法专利号:ZL201510352486. X专利权人:南京梅山冶金发展有限公司宝钢集团上海梅山有限公司上海梅山钢铁股份有限公司设计人:胡荣卓本发明公开了一种多组料仓卸料小车的控制方法,通过小车轨道两侧各安装限位开关,进行安全保护。在小车从动轮安装编码器,记录小车行使轨迹,在小车行驶路径上,每组料仓前安装小车位置校对装置进行位置校对,在每个料仓入料口     

卷取机卸卷小车快速更换法

介绍了济钢热连轧厂卷取机卸卷小车的改造方案.通过对卷取机卸卷小车进行技术改造,采取卷取机卸卷小车整体更换法,大大降低了更换时间,创造了一定的经济效益.     

冷轧薄板酸轧机组卸卷小车控制方式的改进

冷轧薄板卸卷小车采用压力传感器检测控制卸卷小车的上升高度,但在工作一段时间后有时会出现卸卷困难,严重时造成卸卷后钢卷在出口步进梁上翻卷。我们通过加装光电开关来检测钢卷的偏心,改进控制方式后,基本杜绝此类故障的发生。     

基于流量传感器的卸卷小车下位检测方法

热轧卷取机卸卷小车的升降通过位置检测控制,受现场环境及设计位置等方面因素的影响,卸卷小车经常因下位位置检测开关信号丢失而无法动作,严重影响热轧生产线的轧制节奏。为此,提出基于流量传感器的卸卷小车下位检测方法。现场应用效果表明,该方法能够有效消除因卸卷小车下位检测失败造成的事故。     

直立炉顶煤塔料仓卸料系统自动控制

介绍了自动卸料系统及其重要性,着重阐述了如何采用PLC编程来实现直立炉顶煤塔料仓卸料小车的自动控制。实践表明,该自动控制系统具有良好的实用性。     

DTⅡ型皮带机卸料小车结构改进

包钢集团巴润矿业公司选矿厂年产铁精矿310万t/a,破碎系统年处理量1 100万t.经过几年的生产摸索,破碎系统的故障主要发生在皮带机上,而皮带机的故障又以卸料小车为主.文章主要介绍了针对卸料车在运行中存在的实际问题而进行的结构改造,实现了降低卸料小车的故障率的目的.     

选3胶带机系统卸矿小车技术改造

储运矿线选3胶带机及其卸料小车承担着向选烧厂输送原矿原料的任务,是我单位重点设备,也是原矿石输出唯一渠道。随着近两年生产量的加大,暴露出选3卸料小车与胶带系统生产能力不匹配,设备故障率较高,进而影响生产。本文简要阐述了对选3卸料小车技术改造的必要性和改造方案。     

热轧卷取机卸卷困难故障分析及排除

针对热轧板卷取机卸卷故障,分析了热轧板卷取机结构原理和故障产生原因。对卷取机卸卷小车液压控制回路进行改进,解决了卸卷困难的问题,提高了轧制节奏和钢卷外观质量,保证了生产的稳定顺行。     

NEHRP Provisions for 1994 for Nonstructural Components

The recently published 1994 National Earthquake Hazards Reduction Program (NEHRP) provisions include new and substantially improved provisions for the seismic design of nonstructural components, including architectural, mechanical, and electrical components. The provisions are a significant departure from the 1991 NEHRP provisions and other seismic provisions, such as those offered by the 1994 Uniform Building Code (UBC). The design-force provisions are rationally derived and consider actual in-structure acceleration data recorded in recent significant California earthquakes. Also considered in the design-force equations are the dynamic properties of the components, the location of the component within the supporting structure, the safety and operational importance of the component, and the component's anchorage ductility and energy-absorption capability. The resulting force requirements of the new recommendations are compared with the 1991 NEHRP provisions and the 1994 UBC requirements. In addition, explicit design displacement provisions are introduced and discussed.     

Guidelines for Warranty Contracting for Highway Construction

This paper presents guidelines for implementing the construction warranty contracting method in the highway construction industry. A logical, step-by-step method for effectively applying the warranty contracting program for use in the highway construction industry is developed. Relevant issues that may present obstacles to the implementation are addressed, while the best practices, compiled from an evaluation of the current industry’s state-of-the-art practices, will assist an interested state highway agency in creating a warranty specification. In performing this research, the current use of warranty specifications among state highway agencies was examined, and an in-depth case study of the Wisconsin Department of Transportation’s warranty program was conducted.