Peak BOF steelmaking has occurred
The last five years have seen a significant rise in the production of steel via the electric arc furnace (EAF) route, particularly in China. It has resulted in the first fall in the percentage share of steel made by the basic oxygen furnace (BOF) route, and so is a significant […]
Process control on android system ‘goMobile’
John Cockerill has developed ‘goMobile’, a WiFi-based android system to use mobile phones and tablets to acquire data, store, display and operate equipment to enable operators to work more efficiently from any location. Mobile devices can access control systems through customised gateways.
Experimental and numerical study of gas jet cooling at high Reynolds number
In order to achieve the necessary strip cooling rates for today’s high strength steels, values as high as 110-120°C/sec are needed to obtain the necessary temperature drop, typically between 800 and 250°C. This requires removal of about 350KW/m2 per side of the strip. For galvanised strip which cannot be quenched […]
Conveying equipment for extremely hot bulk materials
In the current situation in world steel, with overcapacity, turbulent markets and geopolitical conflicts, many producers have tended to focus on their short-range outlook, solving today’s problems to get rapid results in the immediate future. This often results in a preference for simple and traditional technical solutions. However, something which […]
Automatic tagging, tying and tracking of long products
AIC provides automation solutions to automatically tie and tag bundles of profi les, sections, rebars and wire rod coils. The main benefi ts are increased operator safety, better plant productivity, cost reduction and reduced errors in product identification and tracking.
转炉炼钢已达到高峰
过去五年里，通过电弧炉 (EAF) 线生产钢材迅速升温，特别是在中国。这导致氧气顶吹转炉 (BOF) 线在 炼钢业中所占的比例首次下降，因此具有重要的里程碑意义。导致这一转变的驱动因素是气候变化、电 弧炉工艺效率的提高和废料的可用性。
艾依墨登6#高炉30年以上炉龄探析
艾依墨登塔塔钢铁公司的6#高炉在全部换衬、改进炉衬冷却系统和炉顶装料系统之后于1986年4月开炉。只对20世纪70年代的炉设计或多或少地进行了更改，保留了炉底空气冷却和侧壁喷雾冷却。16年之后，更换了炉缸耐材，但是炉腹和炉身未修补。目前，超过33年之后，自从最初开炉起，炉子在生产率、效率、可靠性方面仍然运行地非常好，这得益于良好的仪表装置、卓越的工艺控制、以及全面资产管理。
热风系统技术、操作与炉龄管理的研发
对于高炉在长炉龄的安全、稳定运行而言，热风系统是最关键的辅助设备。DC热风炉的优化设计所达到的程度，在有些情况下、除了燃烧器和一些关键区域之外、其寿命已超越所关联的高炉寿命。这篇文章阐述了近来关于设计、建造新热风系统、长期操作运行现有的热风系统、以及优化性能方面的研发。 这些研发包含基本的改进，比如：穹顶燃烧设计，以及愈加全面的检查、评估和维护技术一揽子方案。这类技术的实例有：热风系统在操作运行温度下更换燃烧器、改进双炉壳方法、以及超声波衍射时差法测量应用。
氢基炼钢
环境和气候的变化要求钢铁行业脱碳。拥有 ENERGIRON 经验的 Tenova 很好地实现了无碳炼钢的目标。氢作为铁矿石还原剂的使用已在实验室和试点工厂中得到证实，ENERGIRON 技术用作还原剂的氢气含量超过 90%。然而，示范工厂正在试验，为了与以化石燃料为基础的炼铁、氢基 DRI 生产相竞争，可再生能源的电力成本需要减少到 0.03美元/千瓦时或更低，且资本支出必须大幅削减。
热材料运输系统的现代化
在日常业务中，我们经常关注短期前景（即，解决现在的问题以获得短期和快速的结果），因此我们更倾向于简单且传统的解决方案。然而，这样做可能会阻碍我们获取其他解决方案，而且短期的利益换作长期就可能成为弊端。下面我们将介绍两个属于此类的技术解决方案的例子，阐述定制解决方案的好处。