无料钟炉顶料流调节阀控制模型的研究

比较研究了用于高炉无料钟炉顶的两种不同形式的料流调节阀的控制模型 ,从理论上阐述了新型叶轮式料流调节阀控制料流量的优越性。     

原料磨返料装置的设计与应用

介绍一种新型原料磨漏料返料装置。该装置结构简单、改造容易、费用低,可以从根本上解决磨机的漏料问题,经济及社会效益显著。     

新型圆筒混合机在线清料装置的开发与应用

为解决圆筒混合机粘料问题,本厂开发了一种新型清料装置,其形式为类似刺猬的旋转辊子,悬挂于圆筒之中,利用其与粘料产生撞击、滚切、清刮,使圆筒筒壁上的粘料脱离,效果很好。     

新型热态修补料在转炉的应用

通过开发新型耐火材料,达到减小转炉侵蚀速度、延长转炉炉龄、降低生产成本、提高转炉作业率的目的.论文详细地介绍了这一过程及原理.     

一种新型抛料机的改进设计及其应用

介绍一种新型抛料机的工作原理、结构形式及其设计计算,给出其主要改进之处和技术参数,并对抛料机今后的发展进行展望。     

新型上罐固定式串罐无料钟炉顶在本钢的应用

通过对本钢在6、7、8高炉建设中成功引进的PW新型上罐固定式串罐中心无料钟炉顶的介绍，简要阐述了无料钟炉顶的类型和优缺点，重点介绍了串罐式无料钟炉顶，尤其是新型上罐固定式串罐中心无料钟炉顶的优点，并以5号高炉使用的旋转式料罐作对比，简单的对其进行效益分析。     

烧结机新型耐磨导料槽的研发

针对传统料衬式导料槽易磨损、料衬板不易更换、整体更换导料槽费用高、耗时长、影响生产的问题,开发了一种新型导料槽。成功实现了钢结构支撑功能与工作面耐磨功能的分离,耐磨衬板可灵活更换,工作面实现了耐磨衬板全覆盖,延长了导料槽使用寿命和更换周期。     

用接触式散料测水仪测混合料水分

本文介绍了一种采用接触法的新型测水仪,在烧结混合料水分测量时不受恶劣环境影响。所采用的接触电极维护成本低廉、操作简单。计算机屏幕显示多种曲线,全面准确反映水发变化趋势。十多家生产厂现场使用证明,它是一种新型实用的在线仪表。     

新型PEG基粘结剂的注射料性能研究

研究了金属粉末注射成形新型PEG基热塑性粘结剂的注射料性能。结果表明：新型PEG基粘结剂与Fe-2Ni粉具有较强的相互作用,混合均匀性好,且粉末装载量高,注射料注射成形性好。 用新型PEG基粘结剂和Fe-2Ni粉所制备的注射是一种假塑性流体,具有良好的流变性能,粘结剂各组元用量及粉末装载量使注射料的粘度、非牛顿指数、粘流活化能发生变化,影响注射料流变性能。     

高炉无料钟布料料面模拟

应用无料钟多环布料数学模型对某高炉布料后料面进行模拟,寻求中心开放较平坦的凸台型料面.研究发现,在小角度差条件下布料,很难形成平坦的凸台型料面;只有在大角度差、大环位环数差条件下布料,才有可能得到近似平坦的凸台型料面.增加边缘矿石量和中心焦炭量以及在减少布矿溜槽倾角和增加布焦溜槽倾角的混合布料时,提高料线或增加矿石批重均可实现中心开放较平坦的凸台型料面.同时还发现,调整布料参数时,有时也有无规律现象发生.     

16.5MVA电炉加料系统的改进

针对大型铁合金电炉加料系统在高温环境和庞大矿物流量的工况下，碳钢料管加速氧化剥落和磨料磨损，采用厚壁不锈钢料管，设计了能够长期无故障运行的新加料系统。     

马钢炼钢污泥直接配入烧结混合料系统的研发及使用

针对马钢炼钢污泥产出量大、处理困难的现状,在研究国内污泥处理方法的基础上,提出滚筒给料,对辊打碎,大批量处理的新方法并立项攻关.经过研发、生产检验,证明该污泥配加系统原理可行,处理量大且不影响烧结生产,效益显著.     

Operation of sintering machines with a one-layer bed

Results are presented from commercial trials performed to examine the effect of the properties of the charge and the parameters of the charging equipment on the formation of the bed during the charging of sintering machines. To simultaneously increase the degree of segregation of the charge and alleviate its over-compaction during the charging operation, it will be necessary to improve the design of the charging system and search for new technical solutions to obtain the necessary charging parameters. __________ Translated from Metallurg, No. 6, pp. 33–37, June, 2006.     

焦化装煤烟气焚烧炉改造实践

装煤烟气通常采用消烟除尘车处理，而传统消烟除尘车存在烟尘燃烧不完全问题，导致除尘效果差。本文介绍一种新型的地面燃烧方式，即装煤烟气焚烧炉。通过实践应用，装煤废气焚烧炉完全能达到环保要求。若能在焦化行业推广，将能成为一种新型实用的装煤烟气地面燃烧方式。     

Melting of iron-ore pellets in an arc furnace

Steel may be produced in an arc furnace from reduced iron-ore pellets that are supplied to the melt through hollow electrodes. Thermoelectric aspects of this process are considered. A method of charging the pellets in accordance with the thermal conditions in the furnace is proposed. The new method of pellet charging intensifies batch melting and reduces metal losses and dust emissions from the furnace.     

济钢160m3高炉强化冶炼实践

针对 2 #高炉扩容改造存在的设备不配套、上料系统故障多、休风率高等问题 ,改造了料车、上料斜桥头部弯轨和压轨以及煤气净化系统 ,优化了设备管理 ,设备休风率由 1.65 %降至 0 .62 %以下。为探讨高炉操作新技术 ,通过采取精料入炉、推行大料批技术、调整送风制度、降低生铁含硅量等强化冶炼的措施 ,保证了高炉生产稳定顺行 ,高炉利用系数达3 .775 t/(m3.d)     

Mathematical model for burden distribution in blast furnace

Burden distribution in a blast furnace is vital to its smooth running. However, it is difficult to directly measure the burden distribution for an operating blast furnace. Therefore, mathematical models have been applied to guide the charging process to achieve the desired burden distribution. The accuracies of such models depend on the prediction of falling curve, stockline profile formation, and burden descent mode. In this study, a new stockline profile formation model is proposed in which new equations have been developed for the inner and outer repose angle by considering the influence of the burden flow's vertical and horizontal velocity at the apex of the stockline profile. Validation of this new stockline profile formation model is provided through comparison between calculated results and experimental data for stockline profile. A stepped burden descending strategy, in which the burden would descend through a specified distance after each ring charging process, is proposed corresponding to the successive charging process. The influence of the burden descending strategy on the falling point, the final burden profile and radial depth ratio of ore to coke is also analysed. The result shows that the burden descending strategy greatly affects the final burden distribution, especially in the peripheral region.     

高炉原燃料分级布料过程及时序

针对目前高炉原燃料质量恶化导致料柱压差升高的现状,寻求通过布料改善料柱透气性的方法.研究表明:不同粒径颗粒的混合会减小散料层的空隙度,降低透气性;减少颗粒混合,可以提高空隙度.为了改善散料层的透气性,研究了原燃料按颗粒大小分级布料的方式、不同粒级炉料的装料顺序及周期,同时分析了串罐、两并罐及三并罐无钟炉顶的布料特点.研究结果对降低高炉料柱压差及保障高炉稳定顺行有重要作用.      

Selecting the economic conditions of blast-furnace smelting by means of an information and simulation system

Using an information and simulation system, the smelting characteristics and processes in blast furnace 9 at OAO ArcelorMittal Krivoi Rog are analytically studied. The characteristics are predicted with variation in the charging parameters so as to reduce coke consumption. After confirming the coke economy at the working furnace, the new charging parameters are established for constant operation.     

A new charging protocol for blast furnaces

After tests at OAO Chelyabinskii Metallurgicheskii Kombinat, a new protocol has been introduced for blast-furnace charging. The proposed cycle consists of several mixed deliveries (ore + coke) and finally the delivery of several charging ladles with a single type of coke. This protocol has now been introduced at all three blast furnaces, with decrease in coke consumption and increase in furnace productivity.