焦炉炉床板内高精度预埋管安装新工艺

简述了在新钢公司4号焦炉底板埋管的施工中，采用预埋管安装新工艺，达到操作简便，成本低，本效性的效果。     

采用桥管水封消除桥管承插口煤气泄漏

采用桥管水封消除桥管承插口煤气泄漏广州钢铁股份公司许伙暖一、概述炼焦过程产生的荒煤气（未经化学处理的煤气、发生量约３２０ｍ３／ｔ干煤）依靠安装在焦炉顶上的集气系统收集，并由鼓风机抽吸输送到化工回收装置处理。而上升管、桥管、阀体是荒煤气由焦炉导出的主要...     

大容积焦炉护炉铁件的安装检测与分析

焦炉砌体是由耐火材料砌筑而成的.焦炉的寿命和焦炉的生产除了与筑炉用的耐火材料的质量和砌筑质量等有关外,还与焦炉护炉铁件的安装质量直接有关.文章针对大容积焦炉,在大量实践的基础上通过不断完善,总结出一套较成功的工艺设备安装的方案,目的是在保证焦炉工艺设备的安装质量的前提下提高安装速度.     

提高聚氨脂保温直埋管接口安装质量

阐述如何提高聚氨脂保温直埋管接口安装质量.     

6m焦炉桥管的更换

对6m焦炉桥管断裂或通洞造成荒煤气、氨水、焦油外漏污染环境的问题，用装煤车及其上安装的卷扬机作为运输和吊装工具．采取固定上升管更换桥管的办法．可在不影响生产的情况下，得到有效解决。     

上升管阀体开裂的原因及处理方法

焦炉上升管阀体开裂会恶化操作环境，腐蚀设备，威胁焦炉寿命，危害极大，本文分析和论述了上升管阀体开裂的原因及改进措施；并介绍了５８－Ⅱ型焦炉上升管阀体的更换方法。     

焦炉上升管水封装置

<正>专利号:ZL01276440.X专利权人:宝钢集团上海梅山有限公司发明(设计)人:孙建福本实用新型涉及一种水封密封装置,特别涉及一种焦炉上升管水封的补充装置。解决了每个上升管水封槽水满溢出和漏荒煤气的问题,避免了对焦炉炉体损害,影响焦炉寿命。本实用新型的技术解决方案是:一种焦炉上升管水封装置,包     

6 m焦炉护炉铁件的安装检测

针对焦炉护炉铁件安装过程中易产生假吨位的情形进行了分析,并提出了防止假吨位出现的具体措施,总结了6 m焦炉护炉铁件在实际安装检测过程中的一些成功经验.     

大容积焦炉护炉铁件安装检测预案分析

文章针对大容积焦炉,在大量实践的基础上通过不断完善,总结出一套较成功的护炉设备安装方案。目的是在保证焦炉工艺设备安装质量的前提下提高安装速度。     

试验小焦炉与生产焦炉焦炭反应后强度的相关性分析

介绍了唐山佳华煤化工有限公司400 kg试验小焦炉的主要组成。该试验小焦炉是顶装与捣固炼焦两用焦炉,小焦炉安装调试完后做了大量的试验。对比分析了试验数据与6 m顶装焦炉和6.25 m捣固焦炉在焦炭反应后强度指标上的相关性。结果认为：400 kg试验小焦炉试验重现性好,与生产焦炉尤其是捣固焦炉焦炉CSR相关性强,可为大焦炉生产提供参考,有效指导生产。     

高炉热风炉热风管系结构改造实践

文章对包钢4150m³高炉卡卢金顶燃式热风炉热风管系钢结构改造施工进行了总结。介绍了热风炉管系钢结构改造思路、施工质量过程把控,为大型高炉热风炉管系检修工作提供了参考。     

给水管网爆管原因分析及防治对策

从邯钢历年爆管事故统计分析入手，详细论述了爆管原因，从而在管材的选用、排气系统的完善、水锤作用的消除、接口工艺的改进、温度应力的防止、施工质量的提高、给水管道的更新等方面提出了防止爆管的对策。     

钢管冷却喷淋水量对换热系数的影响

 采用一种钢管外喷淋装置,通过在钢管中预埋热电偶测量钢管冷却期间的温降曲线,研究了喷淋水量对钢管冷却强度的影响。利用有限元模拟软件对测量结果进行分析,建立了钢管表面对流换热系数和水流密度的数学关系模型,将模型嵌入了钢管温度场计算软件当中,软件的计算精度进行了工程验证。结果表明,融合了该换热数学模型的钢管温度场模拟软件计算精度达到90％以上。     

钢带增强聚乙烯螺旋波纹排水管的设计与应用

钢带增强聚乙烯螺旋波纹管作为一种新型的排水管道,具有良好的使用性能,但在设计、孑包工上有着不同于其它排水管材的特殊要求。本文主要介绍钢带增强聚乙烯螺旋波纹排水管道的特性与设计要点和施工注意事项。     

严寒环境下排水管线施工方法

严寒环境下排水管道施工问题一直是困扰施工单位和建设单位的一大难题。作者在长期的施工和设计工作中,总结出以下严寒环境下排水管线施工方法,即管道的防腐、焊接、检查井井盖等重点施工项目集中保护处理;管沟开挖、回填及管道闭水试验快速处理;检查井及检查井进出水管制作及连接特殊处理的方法,从而保证整个工程施工质量合格,并且节省工程费用,保障施工单位和建设单位的经济利益不受损失。     

高温蒸气管道直埋技术的应用

以临沂市高温蒸汽管道直埋工程为例,介绍了应用２高温蒸气管道直埋技术时,应准确同带状图,施工及验收标准要切合实际、严格要求钢管质量。     

大口径无缝管线管的制造及抗应力腐蚀性

高含硫环境中大口径无缝管线管的制造,不仅要充分考虑到油田现场的建设、施工等实际应用,而且要考虑管材的服役安全。除了使用API 5L标准中HIC和SSC试验对管材进行材料抗腐蚀性评价外,还引入NACE TM0103—2003标准的应力导向开裂（SOHIC）评价方式。这是第一次将这种评价方式引入到无缝管生产检验中,对试验原理、过程进行研究,初步总结了影响试验结果的几个关键步骤,并在管材设计、生产中的几个关键步骤进行严加控制,确保管材的安全性。     

Pipe Heating System with Underground Water Tank for Snow Thawing and Ice Prevention on Roads and Bridge Decks

In order to prevent traffic accidents on snow-covered bridge decks, the writers developed a new pipe heating system that uses only groundwater stored in a large underground tank. The underground tank provides geothermal energy, i.e., groundwater of constant temperature, through heating pipes embedded in concrete pavements with no electric heater or fuel boiler. The pipe heating system was constructed at approximately 50% of the cost of comparable systems. In addition, there is a reduction of 10% in operating costs compared with the previous system. The present paper outlines its design and construction and provides fundamental data for the developed system. The piped heating system has kept the road conditions safe during the winter season by always removing the snow and ice from the heated road and bridge sections earlier than the surrounding roads. According to long-term temperature measurements, this system has prevented the road temperature from decreasing below 0°C, even through nighttime and morning periods. This report presents the system as an economical and effective solution for snow thawing and ice prevention.     

Full-Scale Field Tests on Flexible Pipes under Live Load Application

This paper describes the procedure and results of the field tests on high-density polyethylene (HDPE), PVC, and metal large diameter pipes subjected to a highway design truck loading. Numerical simulations using finite element method are performed to determine pipe-soil system response under live load application. Comparisons of field test data with the predicted responses are made for soil pressures around and above the pipes, deformed cross-sectional pipe profiles, and pipe deflections. The field test results indicated that the buried flexible pipes, embedded with highly compacted graded sand with silt, demonstrated good performance without exhibiting any visible joint opening or structural distress. Under shallow burial conditions, the AASHTO specified deflection limit of 5% is found to be adequate for installation of the flexible pipes during the construction phase, and a vertical deflection limit of 2% is suggested for HDPE pipes based on the truck load response and repeated loading effect.     

Lateral and Upward Soil-Pipeline Interactions in Sand for Deep Embedment Conditions

The soil–pipeline interactions in sand under lateral and upward movements are investigated with particular attention to the peak forces exerted on the pipe. The analytical solutions for estimating the peak forces are summarized and it is shown that, for deep embedment condition, there is large uncertainty in the true values since the bounds established by the analytical solutions are large. In order to find the solution for the peak force and to investigate its transition from shallow to deep failure mechanism, finite element analyses of lateral and upward pipe movements are performed for different embedment conditions. Two different soil models (Mohr–Coulomb and Nor–Sand models) are used for the simulations. The accuracy of the analysis is first examined by simulating experimental tank tests. The analysis is further extended to deeper embedment ratios of as large as 100. The obtained finite element results are used to construct a design chart for deep embedded pipelines.