高炉系统中铜冷却壁的应用

对铸铁冷却壁和铜冷却壁进行了比较,分析了高炉采用铜冷却壁的利、弊及经济效益,指出控制合理稳定的冷却制度是保证铜冷却壁寿命的关键因素。     

酒钢高炉铜冷却壁使用效果及维护实践

对酒钢1号、2号和7号高炉铜冷却壁的使用效果及维护情况进行了总结。自投产以来,1号、2号高炉均未出现铜冷却壁破损现象,而7号高炉在使用2年半后就出现铜冷却壁大面积破损现象,这与7号高炉铜冷却壁设计过长、原燃料条件较差、中心加焦操作制度有关。认为在高炉运行期间,形成稳定的煤气流分布及抑制边沿气流的操作制度,对铜冷却壁的使用效果及寿命至关重要。     

济钢6号高炉冷却壁破损分析

对济钢第一炼铁厂6号高炉冷却壁破损原因进行分析，认为高炉操作制度不合理造成渣皮不稳定，冷却水质差等冷却系统运行不稳定等是影响冷却壁寿命的主要原因，为此，提出了优化高炉操作制度，加强炉体维护，改善高炉冷却水质，加强设备点检等多项措施，以保证高炉炉况的长期稳定顺行。     

高炉炉体冷却壁综述

为提高高炉寿命,高炉冷却壁得到越来越广泛的应用。介绍了铸铁冷却壁、铸钢冷却壁、铜冷却壁和非金属冷却壁等几种冷却设备,并对其各自的优缺点进行了分析。     

包钢l~#高炉炉体破损调查报告

本文主要介绍包钢1~#高炉中修停炉时对高炉炉衬和冷却壁严重破损原因及有害元素在炉内纵向分布进行的调查.分析了包钢1513m~3级高炉,当炉腹冷却壁总破损率达到40%以上时,标志高炉进入中晚期工作,≥80%时,高炉一代中修寿命基本结束.另外,根据高炉炉身冷却壁解剖分析结果,对冷却壁破损原因,提出了延长冷却壁寿命的途径.     

现代高炉炉体冷却设备

为提高高炉寿命 ,现代高炉炉体冷却设备被广泛应用。对普通铸铁冷却壁、球墨铸铁冷却壁、铸钢冷却壁、铜冷却壁的优缺点进行了分析 ,对其它冷却设备进行了简要介绍     

关于如何延长高炉铜冷却壁寿命的探讨

针对当前高炉铜冷却壁过早损坏、炉墙波动大的现状,对铜冷却壁有镶砖和无镶砖条件下的传热特性进行了深入研究,得出了延长高炉铜冷却壁寿命的关键在于延长镶砖寿命这一认识。在此基础上,提出了延长镶砖寿命的措施在于控制适当的边缘气流,以及以铜冷却壁温度为标准的合理控制区间。通过国内外高炉的案例调研,指出了控制冷却壁温度延长铜冷却壁寿命的有效性,最后提出了当镶砖脱落后可及时采取降料面喷涂来延长铜冷却壁寿命的措施。     

武钢5号高炉破损冷却壁的修复技术

为了延长高炉寿命，武钢5号高炉采用了软水密闭循环冷却系统，但软水密闭循环冷却系统破损冷却壁的修复一直是个技术难题，通过不断摸索，武钢5号高炉找到了一种让破损冷却壁重新恢复冷却的方法-再生法。再生法就是在破损冷却壁中穿金属软管，让破损冷却壁重新恢复冷却，对延长冷却壁寿命非常有效。     

高炉冷却壁的传热学分析

应用传热学理论计算分析了高炉冷却水的稳定性,冷却水的水速,冷却水管与冷却壁本体的间隙及冷却壁的高度对长寿高效高炉冷却壁寿命的影响。     

高炉冷却壁修补技术取得行业性突破

冷却壁的损坏，将造成高炉局部无冷，高炉内衬温度不均匀，渣皮形成厚薄不等，炉型不规范，影响高炉顺行、稳产。同时冷却壁损坏速度将直接关系到高炉寿命的长短。如果高炉每块冷却壁在再生的基础上延长5年寿命，20年下来相当于免费再建了一座高炉。     

Some fundamentals of B. F. Skinner's behaviorism.

Despite B. F. Skinner's prominence, his impressive written corpus, and the many authoritative presentations by others of his approach to psychology, the fundamentals of Skinner's psychology have never been addressed in any comprehensive manner. In this article, the authors take steps to fill this gap by synopsizing Skinner's written corpus into 12 fundamental points that seem to characterize his behaviorism. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Racemose angiomatosis. Comments on the article of D.E. Matsko and I.A.Sokolova. Racemose angioma of the nervous system: tumor or developmental defect? Vopr. onkol. 1966. V.42, No.6. p.91-96

Diversion colitis is thought to result from nutritional deficiencies secondary to fecal diversion. Symptoms include hemorrhagic purulent rectal discharge, abdominal pain, and tenesmus. 5-Aminosalicylic acid (5-ASA) and N-butyrate enemas have been reported to help this condition non-spinal cord injury (SCI) patients. We report the case of a 49-year-old C6 ASIA B tetraplegic man who had received colostomy because of intractable ileus 10 years earlier. He presented with a 2-week history of rectal pain and bleeding. Abdominal and rectal examination on admission were unremarkable. Colonoscopy showed a partial stricture 70cm proximally to the rectum. The colonic mucosa appeared granular and friable with evidence of linear ulceration. Histopathologic study was consistent with colitis. The patient developed fever, abdominal distention, and extensive retroperitoneal air after endoscopy, suggesting colonic perforation. He was treated with daily 5-ASA suppository and total parenteral nutrition for the presumed diagnosis of diversion colitis, and intravenous antibiotics for perforated colon. After 6 weeks of treatment with 5-ASA, the patient had decreased rectal pain and bleeding. This experience suggests that diversion colitis may be a cause of abdominal discomfort in SCI patients and that 5-ASA may be used in the management of diversion colitis.     

小方坯连铸机的切割设备

现在采用的小方坯连铸机的切割设备，分为机械剪和火焰切割机，机械剪包括电动机械剪和液压剪，而液压剪又有平剪刃和４５°剪刃之分，火焰切割机则分为有动力传动和无动力传动的火焰切割机，对这些切割设备的结构特点和优缺点均进行了分析介绍。     

Educators' perceptions of the D.A.R.E. program

This study examines the perceptions of educators about the Drug Abuse Resistance Education (D.A.R.E.) program, based on the results of a statewide survey among 286 fifth and sixth grade teachers and principals. Educators gave their highest ratings to teacher/officer interaction, the role playing exercises, and the graduation ceremony. Ratings of overall program quality and the impact of the program on students were both high. Block regression analysis was used to examine factors predictive of educators' views of D.A.R.E. D.A.R.E. program elements were the most important factors explaining variance in educators' ratings of over-all program quality and program impact on students. Altogether, 54 percent and 38 percent of the variance in both dependent variables were explained. The results are discussed in terms of the important role teachers and principals play as stakeholders in prevention education.     

Structural bonding contributions and the elastic response of b.c.c. and f.c.c. crystals

The anisotropic elastic response of body centered cubic (b.c.c.) and face centered cubic (f.c.c.) crystals is reviewed within the framework of general elasticity and particular model dependent relations. It is found that important trends in the observed behavior of specific groups of crystals can be reproduced by models that include only structural contributions to crystal binding. In fact, a very simple model, consisting of only nearest and next nearest neighbor interactions, reproduces the salient behavior, including the algebraic signs of Poisson's ratio and the orderings of the shear moduli, Young's moduli, and Poisson's ratios associated with major crystallographic symmetries. The analysis provides insight into the differences between the b.c.c. transition metals and the b.c.c. alkali metals.