宝钢外排综合废水人工湿地生态净化回用处理中试研究

钢铁企业外排综合废水的处理回用是降低吨钢耗新水量的有效途径。通过宝钢围厂河调研可知,围厂河接纳的废水资源量丰富,但较高的Fe、Mn浓度限制了其资源化利用。研究了将锰砂作为填料应用于人工湿地中处理宝钢外排综合废水,结果表明,锰砂人工湿地可有效去除废水中的Fe、Mn等污染物,出水达到了《城市污水再生利用工业用水水质》(GB/T 19923-2005)和宝钢生产用水的水质要求。锰砂人工湿地运行稳定,受水力停留时间HRT、季节、温度等因素影响较小,运行成本较低,具有良好的经济效益。     

Independent integration of the 300 t BOF of Zhanjiang in heritage of steelmaking technologies of Baosteel

Through summary and extraction of current steelmaking design,process and equipment technologies and production technologies for 300 t grade converters in Baosteel,the article analyzes and elaborates the significance of independent integration of 300 t grade converters in Zhanjiang,major targets of the independent integration in converter process technologies,equipment packages and controls,the innovated critical technologies and comparison with overseas advanced technologies,major technical difficulties in the integration in Baosteel and their solutions,as well as general mindset and final objectives of the project.The total integration of technology for Shanghai No.1 Steel Making Plant of Baosteel was undertaken by Nippon Steel.And Kawasaki Steel was responsible for the total integration of technology for 4# and 5# converters of Shanghai No.2 Steelmaking Plant of Baosteel.Based on digestion,absorption and innovation of the introduced technologies,Baosteel has firstly achieved the independent integration of 6# converter,5# RH and 3# LF projects in the Shanghai No.2 Steelmaking Plant of Baosteel.Therefore, Baosteel shall take advantages of the favorable conditions and experiences and advanced steel making technologies of Baosteeel to master the imported new steelmaking technologies in the world and then form the advanced complete set steel making technologies and equipment at home and abroad.The achievement of independent integration of Zhanjiang Steel Making Project will make the breakthrough for the construction of large - sized steel making plant in Baosteel.300 t converter technology integration is undertaken by Baosteel independently in instead of by the foreign side in the past.     

自动投药技术在水质净化中应用

针对荷花池净化站加药工艺落后、药耗高的问题,开展了自动投药系统的技术研究,并运用于金沙江源水水质净化处理中,解决了原系统存在的问题,提升了系统自动控制水平,保证了供水水质,降低了运行成本。     

一水场纯水运行工艺改善的探索与实践

介绍宝钢－水场纯水系统的运行工艺和实际生产中存在的问题，针对提出的问题，进行详细的分析对生产工艺进行了改善，从而提高了纯水设备的制水能力，降低了生产成本。     

铁水运输中受铁过程信息采集系统的设计和开发

随着宝钢分公司四高炉的投产,铁水供应量增加,使得铁路线上混铁车的运输更加繁忙.采集出铁过程信息是提高冶炼区域铁路运输效率、保证行车安全的重要环节.此外,当高炉产铁和炼钢用铁之间的动态平衡临时出现失衡状态时,生产管制中心需要及时调整铁水分配计划,并组织实施生产调整措施,因此,开发受铁过程信息采集系统显得非常重要.文章介绍了系统的设计思路和实施方法.作为多站式数据采集系统,集远距离、多通道和串行通信等特性于一体,为类似系统的设计与实现提供了借鉴.     

宝钢二次冷轧切水及轧辊冷却技术研究

充分考虑到二次冷轧(DCR)机组生产特点,从设备与工艺两个方面入手,兼顾到带钢的表面质量与板形控制,开发出一套新型切水装置与喷淋控制工艺,形成了一套完整的轧辊喷淋冷却控制新技术,消除了原设计因使用挤干辊组进行"切水"的弊端,在保证了带钢表面质量的同时也提高了成品带钢的板形精度,并将其推广应用到宝钢DCR机组,大大降低了机组的板形与表面缺陷封闭率,取得了良好的经济效益。     

不锈钢热轧浊环水处理工艺设计

介绍宝钢集团上海五钢不锈钢长型材热轧工程浊循环水处理的工艺设计,探讨了采用化学除油工艺、自动反清洗过滤器等技术和设备处理不锈钢热轧浊环水的技术特点.     

Innovative integrating of hot-dipped(aluminizing) galvanizing lines and engineering of related equipment

Based on the continuous hot(aluminizing) galvanizing lines and related non-standard equipment of Meishan Steel,this paper presents the main contents of such integrated engineering and designing of equipment for the two hot-dipped galvanizing lines,as well as innovative techniques and their features.Led by Cold Rolling Project Department of Meishan Steel,Baosteel Engineering and Technology Group Co.,Ltd. ,working as the responsible unit of this project,develops key technologies and integrates the system by combining the equipment design and development capacity of Baosteel Engineering,research and development capacity of Research Institute of Baosteel,process production and equipment maintenance experience of Cold Rolling Plant,Equipment Department and Manufacture Department of Baosteel Corporation.Core technologies of the two lines are developed and designed through original and integrated innovation and innovation after digestion,focusing on eight core techniques in process equipment,annealing furnace,fluid installation and EIC system.As a result of integration in key process equipment,industrial furnace and EIC control,the cold rolling hot dipped(aluminizing) galvanizing lines take on a new look and reach an annual capacity of 200 000 t galvanized products and 250 000 t galvanized aluminium base strips respectively.These two world advanced lines are able to produce hot-dipped galvanizing products with high quality surface and fine shape,such as household appliance board and senior construction board.As a result, the process and equipment technology of the lines have formed domestic intellectual property.Thus,the technology has reference value for self-integration and equipment technology innovation of similar lines.     

钢铁冶金行业用水节水研究

从两个方面进行了用水节水阐述。一是政府行政主管部门应进一步发布新政完善环境保护体系,同时加大力度执行,做到"执法必严违法必究"。二是积极推进各项节水技术研究,包括取水技术,钢铁冶金工序节水技术,循环水节水技术等。通过研究,以期我国的钢铁冶金工业能够快速走上节能减排环保低碳之路。     

宝钢连铸浊循环水处理系统设计流程分析

在连铸工艺中,喷啉冷却水对铸坯成形极为关键,冷却水水质状况直接影响铸造质量;循环水在喷淋冷却过程中,将不可避免地带有油、氧化铁皮等。所以,如何有效地去除油和氧化铁皮成为水处理研究的重点和难点。文章通过对宝钢连铸浊循环水处理系统设计流程及运行实绩的分析与讨论,并结合国内类似工艺的简介,得出水处理系统的最佳设计流程及发展方向。     

VoIP技术在宝钢的应用

随着网络技术的高速发展,VoIP(Voice overIP)等增值技术不断涌出并逐渐成熟.鉴于宝钢企业网经过多次改造已建成为高效稳定的Intranet,且总部与分支业务联系越来越频繁,特将VoIP技术引进到企业内部.文章介绍了VoIP技术,以宝钢分公司的冷轧薄板厂、马迹山和原料堆场建设的3个典型VoIP网络案例,分别介绍IP to PSTN、PSTN to PSTN和IP to IP技术在宝钢的具体实施与应用.通过利用企业的内部数据网络和电话网络资源,扩展了总部电话交换机网络,有利于企业一体化联络体系管理.该技术的应用一方面可以最大化利用企业网络资源,降低企业成本,另一方面可将电话网络延伸到电信网络无法到达的区域,充分显示出VoIP在企业内部的应用空间,推动多媒体业务在企业内部网络中的应用.     

Development of RH refining technology at Baosteel

With the strong demand for the development of automobile sheets, tin plates, household appliances, silicon steel, pipeline steel and other products as well as for the quality improvement of steel products, remarkable progress has been made in RH refining technology and equipment design since Baosteel began production more than 20 years ago. The vacuum degassing ratio of Baosteel has jumped from 35% in the initial stage when Baosteel began production, to the current ratio of approximately 60%, and will soon reach 75% in the near future. The independent innovations in RH refming technology in Baosteel, such as RH equipment optimization, vacuum decarburization, inclusion control, deoxidation, desulfurization, rhythm adjustment between primary steelmaking and continuous casting, the high efficiency of the RH refining process, and other aspects of RH technology, have all effectively met the requirements of developing new steel products, quality improvement and logistical control. Complete sets of RH equipment and refining technology have been successfully exported to the domestic steel plants. In the future, Baosteel will make further efforts to improve efficiency, stabilize production and quality, and realize special line production, so that the RH degasser will play a greater role in Baosteel.     

Research and implementation practice of integrated process control technology at Baosteel

To improve the quality of outstanding products like automobile steel sheet etc.,Baosteel has spared no efforts to the studying and application of Baosteel integrated process control(BPC ) and diagnosis technology.In the light of the running mode of integrated process control,analysis and diagnosis,Baosteel has realized the full process including steel making,hot-rolling,cold-rolling data traceability.The research and implementation practice of the BPC systems,which specialized on iron and steel manufacturing process,mainly based on the key input variables(KIV) and keyoutput variables(KOV),has been constructed on the plant level and corporate level.Based on the BPC system,Baosteel has established a data processing platform to monitor and analysis the process data,puts forward a efficient data gathering technology,which directly gather the data from the cross-platform of different kinds of systems,such as the plant level process computer,PLC, DCS,PCS etc.In the mean time,a unique mass data processing technology has also been developed.The system can be used to reveal the latent rules between KIV and KOV during the melting and rolling of steel products.This artcal takes the cold products for example to explain the model establishing,applying and optimizing the design between the KIV and the KOV,aims to advance the products capability.During recent years,the BPC technology has been gradually developed from the point to the line,from the line to covered the plane,it has integrated the information technology,the statistical process control technology,the quality diagnosis technology into the steel products integrated management.The BPC system has been developed as a product quality management technology fulfilled with characteristic elements and efficiency,a unique path to continuously enhance the steel products performance.     

钢铁企业水系统中的“有效水”及其分析方法

敞开间接冷却水是钢铁企业水系统的主要形式，研究补水、用水过程中水量与水质的相互关系，对认识敞开间接冷却水系统的规律是十分必要的。将用水过程中的水量与水质指标结合起来，提出“有效水”概念，建立了数学模型及相关分析方法。对某钢铁企业补水、用水实际案例的研究表明，补水和用户两方面的水质变化都将导致系统补水有效性改变，进而使系统的新水消耗和废水排放量发生改变。与单纯的水量指标相比，“有效水”概念及其分析方法能够更科学地评价敞开冷却水系统的用水特性。     

护厂河水资源在宝钢生产中的循环经济利用

钢铁工业可持续发展,必须走低能耗、低物耗、少排放的清洁生产发展道路.宝钢对废水资源合理规划,水质的分类、调控,管网的布置增配,以及护厂河废水作为第二资源的开发,使得宝钢水资源利用走向循环经济利用轨道.     

Overview:Development of Clean Steel Production at Baosteel

The development of clean steel technology at Baosteel can be dated back to the first production of IF steels and pipeline steels in the early 1990s.Now the technology has gradually covered nearly the whole range of products.This progressive development is introduced in the overview including the levels of cleanliness for some steel grades at Baosteel.The technologies at different processes for the production of clean steel and the removal of some impurity elements in molten steel are also discussed.Suggestions are given on the future research and development of clean steel technology at Baosteel in the aim to keep a sustainable development,which should focus on the basic research,inclusion control and making efficient use of inclusions,as well as stable and reliable low-cost manufacturing technology,removal of harmful residual elements,and the expanding of the technology to stainless steels and special steels.     

钢铁工业循环水中氯离子脱除工艺技术探讨

钢铁工业循环冷却水占工业用水量的70％～80％,在工厂中主要用来冷凝蒸汽、冷却产品或设备.面对中国水资源短缺日益严重现象,提高水处理系统循环率、降低吨钢新水指标、提高循环冷却水系统运行的浓缩倍数是重要的节水技术之一.随着浓缩倍数的增加,废水中氯离子不断浓聚,大大加剧了设备及管路遭受晶间腐蚀的危险,轻则影响正常生产及缩短...     

宝钢原料场三电与原料工艺的关系

对宝钢原料场三电控制系统所使用的控制技术、基本结构和流程PLC系统等进行了阐述,并分析了流程 PLC系统存在的必要性和发展趋势。     

宝钢氧气系统的现状分析及对策

简要介绍宝钢氧气系统的基本情况,详细地分析了氧气供需平衡关系,找到了宝钢氧气放散率偏高的主要原因,提出了降低氧气放散率的主要对策。     

莱钢高炉节水措施的探索

莱钢高炉水系统存在诸多问题,如耗水量大,安全性差等。从加强企业节水管理,优化高炉供水工艺、应用高炉循环水节水技术以及稳定水质方面进行了探索,从而有效减少了高炉冶炼的用水,促进企业节能减排工作的发展。