半石墨化自焙炭块－陶瓷砌体在韶钢高炉的应用

1 概况 韶钢老系统高炉均采用高铝砖炉衬,一代炉役中不时出现炉缸水温差超标、炉底温度超过700℃警界线的情况,虽采用了外部强化冷却、钒钛矿护炉等措施,但炉缸烧穿的危险却时时存在。从韶钢1、2、3号高炉停炉来看,炉缸侵蚀已经相当严重,尤其是3号高     

钛护炉在安钢3^#高炉的应用

随着安钢高炉冶炼进程的不断强化，渣铁对炉缸炉底耐火材料的侵蚀更加严重，及时采用钛物料护炉后，高炉炉衬得到保护，最终可延长高炉寿命２年左右。     

新钢7号高炉长寿生产实践

介绍新钢7号高炉炉缸结构及被侵蚀状况,认为炉缸冷却水水量过大,碱金属、锌富集及铅害破坏炉衬,炉型设计和冷却方式的选择不匹配,是影响高炉长寿的主要问题。通过前期建立高炉长寿管理制度、加强冷却系统的日常监控、科学判断炉缸侵蚀变化趋势,后期采取经济冶强、钒钛矿护炉、适当堵风口等措施,较好地控制了冷却壁的热流强度,实现了高炉长寿生产的目的。     

唐钢3号高炉炉底炉缸侵蚀的原因及应对措施

对唐钢3号高炉炉底炉缸侵蚀原因进行分析,并提出了今后生产中应采取的措施。认为唐钢3号高炉炉底炉缸侵蚀的主要原因是炉缸结构不合理和鼓风动能偏低,今后高炉生产中应加强冷却、提高鼓风动能、加钛矿护炉和控制冶炼强度。     

太钢高炉炉底炉缸长寿探讨

通过分析计算确定了太钢3号高炉侵蚀预测数学模型。为了保障高炉生产的安全,根据太钢3号高炉热电偶历史最高数据预测了炉缸炉底侵蚀状况。同时应用该软件分析铁水流动、耐材导热系数、死铁层深度和高炉异常对炉缸炉底的侵蚀影响,并得出炉缸炉底长寿的若干推论,对评价目前侵蚀状况和护炉及未来太钢长寿高效高炉的建设提出若干参考意见。     

鞍钢4号高炉炉缸侵蚀状况与护炉措施

重点阐述了鞍钢4号高炉炉缸侵蚀状况,认为炉缸2号铁口下方第2层环炭位置发生侵蚀,即"象脚"侵蚀,并向1号铁口区域发展,3号铁口也发生侵蚀。简要总结了护炉控制措施,如控制冶炼强度、含钛物料护炉、炉缸灌浆、增加炉缸监测设施、改进炉前操作等。     

鞍钢7号高炉中修复合炉衬中陶瓷砌体的调查

鞍钢7号高炉(2577m~3)炉底、炉缸采用了半石墨化自焙炭块-陶瓷砌体复合炉衬技术,于1992年5月25日开炉。由于上部炉衬侵蚀严重,7号高炉于1997年7月14日停炉中修。从开炉至中修高炉已连续生产     

迁钢高炉炉缸维护技术

对迁钢高炉炉缸维护技术进行了总结。迁钢高炉实践表明,炉缸维护技术的选择必须结合高炉实际情况:3号高炉炉龄短,炉缸活跃性好,可以摸索合理的利用系数,在少用钛矿的情况下,达到炉缸维护的目的;1号高炉处于炉役后期,炉缸侧壁局部侵蚀已很严重,必须采取"高温、高钛"护炉措施。迁钢还开发了高炉钛煤混喷护炉技术和球团加钛新工艺,丰富了加钛护炉技术方法。     

首钢京唐1号高炉炉缸侧壁温度升高的护炉措施

对首钢京唐1号高炉炉缸侧壁温度升高后的护炉措施进行了总结。1号高炉炉役生产至10年之际,频繁发生局部炉缸炉衬热电偶温度升高的问题(TE31323上升至609℃),严重威胁安全生产。通过采取加钛矿护炉、强化冷却、调整布料制度、控制入炉碱金属、加强原燃料的管理等措施,炉缸侧壁高温点得以控制,保证了高炉安全生产,各项生产指标良好。     

梅钢3号高炉炉役后期的高冶强操作

对梅钢3号高炉炉役后期如何维持高冶强操作进行了总结。通过优化护炉措施,采用人工修复侵蚀炉衬配合操作护炉,突破传统护炉对V-Ti矿的依赖,梅钢3号高炉在炉役后期维持了操作炉型的稳定,炉况稳定顺行,获得了较好的技术经济指标。     

深云立交桥梁检测及加固改造

根据深云立交桥梁的检测结果，对该桥目前的整体状况、工作状态，及其使用情况做出综合评价，对桥的病害原因进行了分析，并提出合理的加固方案。     

《儿子与情人》的语码转换与男女二元对立

劳伦斯小说《儿子与情人》一个鲜明的语言特色就是标准英语和当地方言频繁的语码转换。莫瑞尔用方言来对抗妻子,而妻子坚持用标准英语,偶尔也用方言来讽刺、挖苦丈夫。语码转换反映了劳伦斯男女二元对立的哲学思想。     

材料科学技术转型发展与钢铁创新基础设施的建设

摘要：在第4次工业革命浪潮的推动下,钢铁科学与技术正在经历数字化、智能化转型。钢铁行业全流程各工序均为“黑箱”,为多场、多相、多变的巨系统,具有复杂相关关系和遗传效应等。这些不确定性带来了巨大的挑战。挑战和机遇并存。这些不确定性提供了智能化和数字化技术的应用场景资源;钢铁行业极为丰富的大数据提供了挖掘其中蕴含客观规律的数据资源;现代的数据科学、智能技术为解决不确定性问题提供了强大的手段。以数据为中心,以工业互联网为载体,以实验工具、数字数据、计算工具为支撑,建设钢铁企业材料创新基础设施,将可以大幅度提高研发效率,降低研发成本,有力地支撑钢铁材料科学与技术的转型发展。实验工具平台除了传统的实验室仪器装备和中试装备之外,实际生产线被作为主要的实验工具。这些实验工具提供丰富、精准、写实的历史数据和现实生产数据,特别是生产线装备提供实际生产大数据,蕴含着生产过程中的全部规律,是极宝贵的数据资源。利用机器学习、深度学习等现代数据挖掘技术为计算工具,对这些数据资源进行处理、分析、计算,将数据转换为高保真度模型,可以得到具有“原位分析能力”的数字孪生。在工业互联网的总体架构下,以数字孪生为核心,组成信息物理系统,构建起基于数据自动流动的状态感知、实时分析、科学决策、精准执行的闭环赋能体系,解决生产制造、应用服务过程中的复杂性和不确定性问题,提高资源配置效率,实现资源优化,对材料行业转型发展提供关键技术支撑。虚实映射、实时交互、精准控制的信息物理系统与材料创新基础设施合二为一,以材料创新基础设施为基盘,形成具有“原位分析能力”的数字孪生,建设钢铁生产全流程、一体化的信息物理系统,必将推进钢铁行业智能制造蓬勃开展和数字化、智能化转型。     

Status and solidarity in social comparison: Agentic and communal values and vertical and horizontal directions.

Social comparison involves positioning the self relative to others on a vertical or status dimension (ranging from upward to downward comparisons) and a horizontal or solidarity dimension (ranging from contrastive to connective comparisons). Across 3 studies in which 389 undergraduates recorded everyday social comparisons (n = 4,417), downward and connective comparisons were rated as more helpful and mood enhancing than upward and contrastive comparisons. The effects of horizontal comparisons were greater for people for whom solidarity was an important value; however, the effects of vertical comparisons were not greater for people who valued status. The roles of the comparison target, topic, and situation were also explored; for example, noticing undesirable features of the target enhanced status but undermined solidarity. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Praise and Blame and Robinson.

Daniel Robinson suggests that much of the civil and criminal law "serves as the institutionalized form of praise and blame". Indeed it does. Pulling at this thread of Robinson's tapestry leads the reader straightaway to a host of truths about how law and morality not only intersect, but work together in harmony. "[L]aw", Robinson says, is a "vivid expression of deeper and impenetrably complex moral theories". This essay explores several of these harmonies, but focuses on two. One is that political society must be seen as the cooperation of free persons according to law, which persons hold common moral understandings. The second has to do with retribution as the moral justifying aim of punishing criminals. The author goes beyond Robinson's limited praise of retribution, and shows that some central features of our practice of punishment are understandable only within the retributive framework. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Voices of fear and anxiety and sadness and depression: The effects of speech rate and loudness on fear and anxiety and sadness and depression.

Two studies investigated the role of expressive vocal behavior (specifically, speech rate and loudness) in fear and anxiety and in sadness and depression. In the 1st study, participants spoke about personally experienced fear and anxiety-arousing and neutral events using 3 different voice styles: fast and loud, normal, and slow and soft. In the 2nd study, participants spoke about personally experienced sad or depressing and neutral events using the same 3 voice styles. In both studies, the participants' highest levels of subjective affective and cardiovascular (CV) arousal occurred when they spoke about the emotional events in a mood-congruent voice style: fast and loud in the case of fear and anxiety, and slow and soft in the case of sadness or depression. Mood-incongruent voice styles canceled the heightened levels of CV arousal normally associated with these negative emotions. The voice-style manipulation had no significant effect on the participants' levels of CV arousal during the neutral discussions. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

钢铁产品交易与展示平台的设计与应用

为解决单个企业的信息化投资风险、从整体上降低企业信息化投入,针对大邱庄钢铁产业的类型特点,设计了一种新型信息化公共服务平台。详细阐述了钢铁产品展示及交易平台的建设内容及系统开发技术。该平台集产品展示、信息查询、用户管理功能于一体,实现了全自动、全智能的在线管理和维护,适用于中小型企业。该平台的应用最大化地发挥了大邱庄的产业优势,对大邱庄工业园区的宣传和市场开拓起到了一定的作用。     

Aging and negative affect: The rise and fall and rise of anxiety and depression symptoms.

The relationship between aging and negative affect is dynamic and complex. Although prior studies have often cited lower prevalence rates of anxiety and mood disorders among older individuals, these studies may miss the dynamic relationship between symptoms and aging. To evaluate a nonlinear model of the relationship between aging and negative affect, the author examined measures of neuroticism, anxiety, and depression symptoms in a cross-sectional, community sample (N = 335), ages 18 to 93. Results indicated a curvilinear relationship, with mean symptom levels increasing during early adulthood (until the mid-30s) and then showing a small decline until older adulthood (the mid-70s), when symptoms again increase with age. (PsycINFO Database Record (c) 2010 APA, all rights reserved)