Discussion on Hearth Maintenance at Later Stage of Campaign at Meigang No. 3 BF;
3号高炉炉役后期炉缸维护问题的探讨
Investigation for No.4 Blast Furnace Hearth Damage at Liugang;
柳钢4号高炉炉缸破损调查
Maintenance of No.2 BF Hearth at Baosteel During Later Operation Period;
宝钢2号高炉炉役后期炉缸的维护
2 1880-m3 blast furnace,under the circumstance of longer unscheduled delay,measures like elevating hearth heat,well controlling tuyere flame temperature and iron tapping were adopted after its reblow,considerably shortening its resuming time and minimizing the loss.
莱钢2#1880m3高炉在无计划休风时间较长的情况下,复风后采取了提高炉缸热量、控制好风口火焰温度及抓好炉前出铁等措施,大大缩短了高炉的恢复时间,将损失降低到最低水平。
Some measures such as increasing the hearth heat,better controlling of flame temperature and keeping good tapping process were adopted for quick recovery after reblowing,and especially it made a good result for increasing the furnace temperature in the condition of granular coal injection without oxygen enrichment.
莱钢2#1 880 m3高炉在无计划休风时间较长的情况下,为了尽快恢复到正常水平,制定了详细的方案,复风后采取了提高炉缸热量、控制好风口火焰温度及抓好炉前出铁等措施,使炉况恢复较快,尤其是在无富氧喷吹粒煤提炉温方面,取得了很好的效果。
3D visualization technology of erosional shape for blast furnace hearth;
高炉炉缸三维侵蚀形状的可视化技术
Dynamic emulation research on three-dimensional erosional shape on blast furnace hearth;
高炉炉缸三维侵蚀形状的动态仿真研究
The paper introduces basic concepts and methods of forecasting model of hearth erosion of BF#4 and analyzes design principle and method of program implementation.
对4#高炉炉缸侵蚀预测模型的基本思路和方法进行了阐述,分析了该模型的设计原理和程序实现方法。
The basic consideration and method on the model of hearth erosion monitor of Baosteel's No.
对开发宝钢2号高炉炉缸侵蚀状况全面监控模型的基本思路和方法进行了阐述,讨论了已运行高炉实施增设配置的关键技术,给出了模型在线跟踪判断的实际效果。
On the basis of the thermal flow intensity temperature distribution in the hearth and slag and liquid iron temperature,a prediction method has been developed to estimate the hearth erosion through simulating the temperature distribution of the hearth with self-baking carbon brick and ceramic brickwork as a lining by means of Kriging's method.
以鞍钢7号高炉自焙碳砖陶瓷砌体复合炉缸的热流强度、炉缸内各测温点和渣铁温度为依据,利用最小误差回归分析方法提出了炉缸侵蚀状态的预测方法。
Analysis of “heat transfer method” hearth and “heat isolation method” ceramic cup synthetic hearth bottom;
“传热法”炉缸和“隔热法”陶瓷杯复合炉缸炉底分析
According to the theory of heat transfer,based on the calculated temperature distribution in hearth bottom,it is clear that all the brick layers in hearth bottom can not be considered as a whole one for different structures result in different temperature distribution though total heat resistance is the same.
从传热学的角度出发,通过对炉缸炉底温度场的分析计算,论证了炉底全部砖层的热阻并不只是一个统一的整体,总热阻相同而结构不同的炉底,温度场分布也不同,阐明了全炭砖炉底和陶瓷杯复合炉缸炉底存在的弊端及其根本原因,进而根据铁水和冷却水的不同影响范围,提出“避热”和“扬冷”的概念。
The mathematical model of heat transfer at hearth bottom was established.
建立了炉缸炉底传热学模型,应用该模型的计算结果表明:在生产初期,合适的陶瓷垫参数能够提高炉底的抗侵蚀能力,减缓炉底的侵蚀速度,延长高炉寿命。
Cause and handling of hearth chill in the No.5 BF at SISG;
韶钢5号高炉炉缸冻结事故的原因及处理
Through adopting the technical measures such as local tuyere blowing above iron notch, burning iron notch with rich oxygen lance, tapping from iron notch, discharging slag and hot metal timely, adding coke in concentrative and de-concentrative forms and drilling the tuyere timely and so on, the accident of hearth chill was treated effectively.
通过采取铁口上方局部风口送风、富氧枪烧铁口、铁口出铁、及时排放渣铁、集中与分散加焦和适时打风口等措施 ,有效地处理了炉缸冻结事
The process of hearth chill in blast furnace No.
简述了萍钢 30 1号高炉炉缸冻结的经过及处理过程 ,分析了炉缸冻结的原因 ,总结了本次炉缸冻结及处理的经验与教训。