重钢5高炉炉役末期的生产与维护

本文介绍重钢5高炉（1200m^3)新建竣工投产以来的生产概况和高炉炉役末期的生产及维护措施。5高炉在提高生铁产量、改善质量和降低消耗的同时，针对高炉炉役末期的设备状况，从稳定高炉顺行、加强护役末期的管理，并采取行之有效的生产及维护措施来确保高炉达到安全生产和延长炉役寿命的目的。     

邯钢4号高炉炉役后期的操作与维护实践

对邯钢4号高炉炉役后期在强化冶炼与高炉长寿方面所做的工作进行了总结分析。通过采用精料、加钛矿护炉、优化操作制度以及合理维护等操作技术措施,4号高炉在炉役后期实现了稳定顺行生产,延长了高炉寿命。     

天铁3号高炉炉役末期生产实践

根据天铁3号高炉炉役末期的特点和设备状况，采取了一系列的生产操作措施，使处于炉役末期的3号高炉安全高效生产。     

邯钢6号高炉炉役后期的维护与操作

1 概况 邯钢6号高炉有效容积380m~3,1个铁口,1个渣口,14个风口。采用料车上料,料钟布料。高炉冷却结构情况如下:炉缸为光面冷却壁;炉腹和炉腰为镶砖冷却壁;炉身一、二层也是镶砖冷却壁,但炉身三层和四层为带凸台的镶砖冷却壁。冷却壁材质均为普通铸     

石横特钢1080m~3高炉延长炉役寿命实践

石横特钢炼铁厂总结1 080 m3高炉生产经验,通过增加死铁层深度、更换炉腹铜质冷却壁、调整炉缸炉底耐材结构、加强铁口维护等8项措施,高炉炉役寿命得到显著延长。     

韶钢6号高炉炉役后期生产实践

韶钢6号高炉炉役后期炉皮开裂、上部耐材基本脱落、冷却壁烧坏多块,使炉况不顺,生产技术指标下滑;通过提高原燃料筛分质量、操作制度的研究与调整、冷却壁检漏与修复和炉身上部喷涂及灌浆造衬等措施,炉况顺行明显好转,主要技术经济指标得到大幅度改善.     

济钢1号高炉炉役后期的护炉操作

1 概况 济钢二铁厂1号高炉(120m~3)大修改造后于1995年6月投产,开炉时炉基温度即达到400℃以上。因炉底无冷却和长期冶炼低硅生铁,炉基温度上升较快,从1998年下半年开始,温度上升更加迅速,到1999年2月,炉基温度已达到890℃,给高炉安全生产带来隐患。经研究决定,对1号高炉实施特护,以确保高炉安全稳定生产。1号高炉先后采取了炉基打孔通水冷却,配加钒钛矿(球)护炉,发展边缘煤气流等措施,延长高炉寿命2     

湘钢1号高炉炉役末期状况分析及应对措施

湘钢1号高炉已经到了炉役末期,炉型不规则,炉体破损严重,虽然采取了降低冶炼强度等一系列措施,但是炉况顺行一般,各项经济技术指标逐步恶化.为此,对1号高炉目前的现状进行了分析,并提出了维持炉况顺行、降低消耗的措施.     

延长钒钛矿冶炼高炉一代炉役的措施

高炉长寿是现代高炉操作者追求的目标,承钢公司2 500 m3钒钛矿冶炼高炉在高炉冷却壁漏水的严重情况下,通过稳定原燃料结构和质量、优化高炉操作制度,改善水质,减少炉缸侵蚀,延长了钒钛矿冶炼高炉一代炉役。     

韶钢5号高炉炉役后期强化冶炼实践

韶钢炼铁厂5号高炉炉役后期通过采取精料、改善高炉操作、加强高炉炉体管理等措施,取得了利用系数3.35 t/(m3.d)、入炉焦比395kg/t的良好技术经济指标。     

Neurosurgery at the State University of New York at Buffalo

We treated five patients with auricular deformities (microtia in microform and group IIB or III constricted ears) using the following procedure: nearly all of the contralateral conchal cartilage was resected, grafted, and sutured to supplement a cartilaginous deficit and to keep the supporting frame of conchal cartilage expanded by the double banner flap method. After this, a soft tissue deficit was reconstructed by our newly developed method of covering the defect with a triangular flap superior to the auricle by making a skin incision and a rhomboid flap anterior to the auricle. So far, we have obtained satisfactory results using this one-stage procedure.     

School psychology at the University of Texas at Austin.

Describes the development of a university school psychology (SP) program, which began in 1962 as a component of a counseling psychology program. In 1965, the author became director of the SP program. Objectives were to have a leadership role in the field of SP, facilitate both school- and non-school-based career opportunities for nontraditionally educated and trained school psychologists, contribute to the upgrading of doctoral SP, and push for more extensive institutionalization of doctoral SP in public schools. The curriculum has come to encompass more eclectic theoretical foundations. Three reasons are noted for why the program has been successful: its attraction of outstanding students and preparation of graduates for leadership roles, departmental support and breadth, and financial support from the National Institute of Mental Health. (23 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

梅钢高炉炉役后期的护炉实践

对梅钢1号、3号高炉炉役后期存在的问题以及在高炉长寿方面所做的一系列工作进行了总结分析。通过采用加钒钛矿护炉、优化操作制度以及合理维护等操作技术措施，2座高炉在炉役后期实现了稳定顺行生产，延长了高炉寿命。     

Aggradation at Bridges

Aggradation at bridges causes the bridge waterway opening to be reduced, possibly resulting in upstream flooding and increased contraction scour. Aggradation results when the sediment load supplied to a reach of river from upstream exceeds its capacity to transport sediment. Solutions to aggradational problems at bridges are often complex and expensive. Solutions include increasing sediment transport through the bridge by modifying the channel, constructing an upstream sediment trap, redesigning the bridge, dredging, and treating the cause of the aggradation. At many bridges, aggradation problems can be severe. As an example, aggradation at a bridge in northern Pennsylvania is described. The benefits, disadvantages, and costs for various possible solutions to the example problem are compared and the most cost-effective solution is presented.