摘要
炼焦在宝钢的整个炼钢工艺流程中属于重要的生产环节,不仅为炼铁提供优质焦炭,还为多个部门提供焦炉煤气。干熄焦为当今世界焦炭生产中的先进工艺,国外工厂在建设干熄焦时,多保留原有的湿熄焦装置,将其作为备用装置,以确保干熄焦出现故障时仍能正常生产,即干、湿两套装置并用。宝钢一、二、三期只建干熄焦,未建湿熄焦装置,这样可少建一套湿熄焦装置,避免转换湿熄焦装置后因焦碳质量波动给高炉生产带来不利影响,还能减少管理的复杂性,减少除尘系统的操作难度;但是,没有湿熄焦,就必须保证干熄焦百分之百的安全运行,否则一旦干熄焦发生故障,就会影响整个宝钢的正常生产。由于干熄焦车间框架的结构形式特殊,使用条件复杂,又涉及抗震设防、软弱地基和台风的作用,不能排除还存在其它问题和隐患的可能性。为了保证安全生产,有必要对干熄焦的框架进行系统的调查检测和可靠性分析鉴定,并针对存在的问题研究可行、合理的加固技术。
本文以宝钢一期干熄焦车间钢框架结构检测分析与加固为研究对象。通过对该框架已出现的缺陷和损伤的调查和检测,建立了干熄焦车间框架结构的力学分析模型,经对其结构系统和吊车梁及制动系统进行系统分析,确定导致框架振动过大的主要因素;制订了钢框架的力学性能检测方案,讨论了吊车梁及其制动系统的检测方法;建立干熄焦车间框架结构体系可靠性评定的基本方法,明确干熄焦框架结构实际的可靠度水平,并提出合理、可行的加固技术和方法,改善干熄焦框架结构的性能,保证其安全、正常使用。
加固后钢框架的分析和测试结果说明,干熄焦钢框架的加固取得了预期的效果。本文的研究结论对于二期、三期干熄焦框架结构的可靠性评定和维修、加固具有重要的指导意义,并可为该类框架的结构设计提供参考,推动干熄焦工艺的推广。
Baoshan Iron and Steel coke in the steel-making process throughout the fall in the production of important links not only to provide high-quality coke for the blast, also provides a number of coke oven gas. CDQ for the production of coke in today's world of advanced technology, building factories abroad CDQ, more than keeping the existing plant Coke wet out as a back-up devices to ensure that the CDQ still fails to normal production , That is dry, wet and two sets of devices. Baoshan Iron and Steel 1, 2, only three CDQ build, not build out the wet coke plant, which can be put out to build a coke plant wet, wet-out to prevent the conversion after the coke plant as a result of fluctuations in the quality of coke for blast furnace production have a negative impact, But also managed to reduce the complexity of the dust removal system to reduce the difficulty of the operation; however, has not put out the wet Coke, it is necessary to guarantee the safe operation of CDQ hundred percent, or once the CDQ of the problem and will affect the normal production of Baosteel . CDQ workshop as a result of the unique structure of the framework, the use of complex conditions, involving earthquake-proof, weak foundation and the role of the typhoon, there are still can not rule out other problems and hidden dangers. In order to ensure safe production, it is necessary to CDQ the framework of a systematic analysis of the reliability of the detection and investigation to identify and remedy the problem explore possible and reasonable reinforcement techniques.
This article has done preliminary investigation and analysis, on-site inspection and testing, mechanical analysis and verification, testing and analysis of the results, the reliability of assessment, strengthening and reinforcing effects of demonstration programs to verify the work, and so on. Through the analysis of the consolidation testing results of the steel framework show that the reinforced steel frame CDQ achieved the desired results.
After the consolidation of the steel framework of analysis and test results show that the reinforced steel frame CDQ achieved the desired results. This article research results is useful to assess the reliability and maintenance, strengthening of the second and third phase CDQ frame structure, but also to promote the CDQ technology promotion.
引文
[1]2003年.钢结构设计规范(GB 50017-2003),北京:中国建筑工业出版社.
[2]2001年.建筑结构可靠度设计统一标准(GB 50068-2001).北京:中国建筑工业出版社.
[3]2001年.建筑结构荷载规范(GB 50009-2001).北京:中国建筑工业出版社.
[4]2001年.钢结构工程施工及验收规范(GB 50205-2001.北京:中国建筑工业出版社.
[5]2002年.冷弯薄壁型钢结构设计规范(GB 50018-2002).北京:中国建筑工业出版社.
[6]1997年.建筑结构设计术语和符号标准(GB/T 50083-97).北京:中国建筑工业出版社.
[7]2002年.门式钢架轻型房屋钢结构技术规程(CECS 102-2002).北京:中国建筑工业出版社.
[8]1998年.高层民用建筑钢结构技术规程(JGJ 99-98).北京:中国建筑工业出版社.
[9]1992年.网架结构设计与施工规程(JGJ 7-91).北京:中国建筑工业出版社.
[10]罗邦富.钢结构设计手册.北京:建筑工业出版社.1988:35-39.
[11]赵熙元.建筑钢结构设计手册.北京:冶金工业出版社.1995:65-79.
[12]陈绍潘.钢结构设计原理.北京:科学出版社.1998:31-42.
[13]E.H.别列尼亚.颜景田译.金属结构.哈尔滨:哈尔滨工业大学出版社.1998:54-67.
[14]魏明钟.钢结构设计新规范应用讲评.北京:中国建筑工业出版社.1991:207-224.
[15]卢铁鹰.钢结构.重庆:西南师范大学出版社:1993:34-35.
[16]魏明钟.钢结构.武汉:武汉工业大学出版社.2000:123-125.
[17]王维如.建筑工程现代化管理方法.北京:中国建筑工业出版社.1996:423.
[18]中国建筑科学研究院.建筑施工扣件式钢管脚手架安全技术规范(JGJ 130-2001).北京:中国建筑工业出版社.2001.
[19]中国建筑科学研究院.建筑结构荷载规范(GB50009-2001).北京:中国建筑工业出版社.2002:174-177.
[20]全国化工施工标准化管理中心站.建筑防腐蚀工程施工及验收规范(GB50212-2002).北京:中国计划出版社.2003:43-44.
[21]江正荣、朱国梁.简明施工计算手册(第三版).北京:中国建筑工业出版社.2005:46-47.
[22]刘又文、彭献.理论力学.北京:高等教育出版社.2006:95-96.
[23]梅凤翔.工程力学.北京:高等教育出版社.2003:24-25.
[24]Battikha,Mireille G.Computer-based system for construction quality management.Journal.of Construction Engineering and Management,2002,128(2):164-173.
[25]Arditi,David,Gunaydin,H Murat.Total quality management in the construction process. International Journal of Project Management,1997(4):235-243.
[26]Dooley,Kevin;Anderson,John;Liu,Xiaohe.Process Quality Knowledge Bases.Journal of Quality Management.1999,4(2):207-224.
[27]Cannon,Robert W.Proportioning workable concrete mixtures with specific gravity of cement-water paste.AC/Materials Journal,2005,102(5):338-346.
[28]Yen,Tsong;Chen,How-Ji.Design of scaffold shores for concrete buildings during construction.Journal of the Chinese Institute of Engineers,1997,20(6):603-614.
[29]Borland Delphi Database Application Developer's Guide.Borland International Inc.1996.
[30]Kuhn,Andrew M.Multivariate Statistical Methods in Quality Management.Technometries,2005,47(I):94-95.
[31]Hundal,M.S.;Langholtz,L.D.Computer-aided conceptual design:An application of X Windows,with C.American Society of Mechanical Engineers,1992,42:1-9.
[32]Chin,Sangyoon;Kim,Kyungrai;Kim,Yea-Sang.A process-based quality management information system.Automation in Construction,2004,13(2):241-259.
[33]NORMAN RONALD J.Object-Oriented Systems Analysis and Design[M].北京:清华大学出版社,1998.
[34]Borland Database Engine Online Reference.Inprise Corporation.1999.
