高炉煤气管道及不锈钢管件氯根腐蚀的解决措施

文章对高炉干法除尘工艺中产生的高炉煤气腐蚀管道原因进行分析,阐述了高炉煤气氯根(Cl-)主要来源以及高炉煤气管道容易受到腐蚀的主要部位,进而提出了延缓或控制管路腐蚀的解决方案从而减少和避免煤气中腐蚀成份对高炉煤气系统、管网系统、用户系统设备设施的腐蚀,以此提高设备安全可靠性,延长设备正常使用寿命周期。     

煤气设施带气堵漏常用方法及实践

包钢燃气厂煤气柜、煤气管网及附属设施运行多年,经常出现冲刷、腐蚀泄漏现象,通过对煤气泄露部位堵漏方法和实践经验的归类总结,根据泄漏设施不同情况,介绍了几种较为实用的带煤气堵漏作业的方法。     

煤气设施检修过程安全管理分析

针对煤气设施检修重点,介绍了煤气停、送、动火作业、带煤气作业以及管网故障处理的安全管理措施,为企业长周期稳定运行提供保障。     

煤气管道的腐蚀与堵塞

１简介钢铁企业大都使用高炉煤气和焦煤煤气这样的副产气体来满足其能源要求。高炉煤气和焦炉煤气通过各自的管网被送往焦炉、烧结、电厂等使用单位，而象轧钢厂的加热炉、均热炉则使用高炉煤气和焦炉煤气根据一定的热值要求按比例混合的混合煤气做燃料。与庞大的煤气管网密切相关的一个主要问题是管道的腐蚀和堵塞．２煤气管道的腐蚀金属表面受周围介质的化学及电化学作用而被破坏的现象称为腐蚀。而讨论煤气管道的腐蚀以前必须首先弄清楚煤气的基本组分和煤气中杂质的含量。煤气的组成见表１。焦炉荒煤气的组成大致如下（各数值单位为ｇ／…     

带压处理各类工业介质管道泄漏问题的探讨

各类工业介质管道由于长时间运行对管壁的腐蚀冲刷严重,泄漏点频发。煤气中的灰尘及水分,对煤气管道腐蚀严重,特别是煤气管道的焊缝、膨胀节、排水器喇叭口等处,更易发生焊缝开裂、管壁腐蚀穿孔等重大问题。停煤气置换管道处理时间较长,停产损失巨大;各类地埋水管道,由于长时间受杂质冲刷、药剂腐蚀等原因,也泄漏频发,造成水资源的浪费。介绍了多种不停产带压焊接堵漏方法的操作要领与作业要求。     

带压开孔与封堵技术在大孔径高炉煤气管道上的应用

攀钢一期高炉煤气主管网在不停输煤气的前提下，采用带压开孔封堵技术对一期高炉煤气主管网进行封堵实施作业，保证了一期高炉煤气主管网安全退出运行，实现了带压开孔封堵技术在大孔径高炉煤气管道上的成功应用。     

防泄漏式排水器在煤气管网中的应用

针对原煤气排水器在煤气管网中存在的缺陷,采用了防泄漏排水器,设备改造后,增加了煤气管网安全运行系数。     

新增FCB功能中对发电机开关信号的变通处理

基于外部电网故障应对、煤气管网安全及煤气平衡问题,结合发电机组实际运行工况,经过探索、研究及试验,通过对西门子原设计功能的消化和研究,对逻辑模块中的发电机出口开关信号进行了合理的变通处理,从而实现在某大型全燃烧高炉煤气的发电机组新增FCB带厂用电运行功能,有力地保障了发电机组的安全稳定运行。     

新钢10万m~3焦炉煤气气柜增压改造

新钢10万m~3焦炉煤气柜通过增加活塞配重,提高运行压力,投入运行后,起到了较好的调节平衡管网煤气压力、保障煤气管网安全稳定运行的效果。     

煤气管道泄漏的原因分析与修复措施

煤气作为一种优质的二次能源，近年来在冶金企业的能源消耗中所占的比重越来越大，有的企业已达到了45％以上。冶金煤气易燃、易爆、剧毒的性质决定了煤气系统的安全运行对企业的正常生产具有非常重要的：意义，随着企业煤气系统的日益发展，煤气管网的日益扩大，煤气管网的安全维护工作也就越来越难。其中煤气管道泄漏就是一种常见的故障，一旦发生煤气泄漏，极易引发煤气中毒、着火，甚至爆炸事故，这就要求我们对管道及时进行修复，排除故障，保证安全并尽快恢复生产供气。     

转炉炉壳热应力分析

根据实际转炉建立实体模型。以有限元为手段,考虑了炉衬和炉壳材料的物性参数随温度变化的特点和炉衬与炉壳之间膨胀间隙,计算了转炉炉壳在温度载荷和炉衬膨胀压力同时作用下的热应力。所得结果可为转炉炉壳设计提供依据。     

The effect of amount of possession of the trait of hostility on accuracy of perception of hostility in others.

Some theories of personality hold that an individual's perception of others is influenced by his own personality characteristics; more specifically, that a trait of low social value will be projected more into others, and that insight into the possession of these characteristics reduces this distortion. These 2 hypotheses were tested by having a group of college students rate each other (including themselves) on degree of friendliness or hostility. Agreement with group rating about self yielded the insight score. In general, the hypotheses were supported; the "friendly" Ss were most accurate in their perception of others, and insight was positively associated with accurate perception. From Psyc Abstracts 36:04:4HL16M. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Comparison of rates of infection of two methods of emergency ventricular drainage

The rates of infection of two methods of external ventricular drainage in use at Atkinson Morley's Hospital--namely, (a) percutaneous drainage with Rickham reservoirs and (b) tunnelled ventriculostomies--were compared in this retrospective review. Percutaneous drainage of CSF with Rickham reservoirs was associated with a 27% rate of infection as identified by positive microbiological cultures; tunnelled ventriculostomy catheters had a 10% infection rate. The difference in the infection rate between the two methods was statistically significant (P < 0.015). Other variables examined, including the age and sex of the patients and the reasons for ventricular drainage, were not associated with an increased rate of infection. Most infections from either method were caused by a coagulase negative staphylococcus. The average duration of ventricular drainage before identification of positive cultures was 5.7 days for Rickham reservoirs and 6.0 days for ventriculostomies.     

浅析《野草》的版画特征

鲁迅先生一生热爱美术作品,对版画中木刻兴趣尤甚.<野草>作为其"写心之作",亦呈现出一些与木刻版画一致的审美特征:一是具有木刻版画的色彩特征,多对比、多冷色,有阴郁的美感;二是具有木刻版画的力度特征,环境描写、人物刻画处处刀锋毕现,遒劲有力,有一种"力之美".     

四辊破碎机车刀架的改造

针对四辊破碎机车刀架车削中存在的几个问题,详细介绍了电动车刀架的结构和工作原理,建立主要设计参数的数学表达式,并进行适当的分析。改造后,这种电动车刀架运行平稳、可靠、方便、省力,取得了预期的效果。     

Quality of life of relatives of mental patients

Usage of quality of life of psychiatric patients' relatives as the parameter of estimation of the quality of psychiatric care is considered. By means of standard questionnaire elaborated by the authors as well as by means of both individual and group conversations the quality of life was analyzed in 40 relatives which lived together with psychiatric patients. Different spheres of their life and difficulties (financial, social-psychologic, production) were examined in families with such patients. The defects of psychiatric care that had direct influence on the quality of life of the psychiatric patients' relatives are outlined.     

Effect of antibiotics of chemotaxis of human leukocytes

The effect of 20 different antibiotics on chemotaxis by human neutrophils was studied. Human leukocytes incubated with chloramphenicol, rifampin, sodium fusidate, and tetracyclines in vitro showed markedly depressed migration. The mechanisms by which these antibiotics affect leukotaxis are discussed.