Development ＆ Application of Taphole Clay for 4 350 m^3 Blast Furnace

To satisfy the service conditions of TISCO 4 350 m3 blast furnace and the requirements to taphole clay, the study on the taphole clay for large blast furnace was carried out. The taphole clay with good workability, opening ability and high-temperature performance was prepared by optimizing raw materials, grain size distribution, binder selection, etc. The trail application in TISCO 4 350 m3 blast furnace showed that the newly-developed taphole clay had a satisfactory performance.     

Environmental-friendly Ramming Materials for Mud Package and Taphole of Large-scaled Blast Furnaces

The compositions, structures and properties of envi- ronmental-friendly ramming materials for mud package and taphole of large-scaled blast furnaces were studied. The results show that the formation of silica fibers makes structure of ramming materials dense. During the process of extruding mud and ramming materials, SiC is partly oxidized ; CaO , F% 03 and carbon penetrate towards the outer wall. The improvement of ramming materials can inhibit the penetration of molten slag, iron and carbon. The bulk density of environmental-friendly ramming ma- terials dried at 200 ℃ is 2.90 g · cm-3, the cold com- pressive strength of this kind of ramming materials dried at 200 ℃ is about 17. 0 MPa and fired at I 450 ℃ is about 39. 2 MPa.     

Development of Anti—Creep Andalusite—Based Bricks for Blast Furnace Stove

Secondary mullitization and mineral phase compositions of reacting andalusite of different gain sizes with fine alumina powders are studies. By adopting reasonable process technology to control mullitization behavior during firing, good anti-creep andalusite bricks have been developed.     

高炉出铁沟快速干燥浇注料的研究与应用

对高炉出铁沟用快速干燥浇注料的组成，性能及显微结构进行了研究，认为采用自洁净材料结合可以改善材料的高温结合性能与抗氧化性能，研制的新型浇注料成型烘烤3小时后即可投入使用，在武钢高炉使用，通铁量接近20万吨，效果显著。     

高炉喷吹与焦炭质量问题的探讨

文中讨论了高炉在富氧喷吹的条件下,如何优化高炉冶炼参数,探讨了现有工艺条件下,提高焦炭质量的各种措施。     

Development and Application of Al_2O_3-Si_3N_4 Refractories Used in Blast Furnace

Newly developed Al2O3-Si3N4 composite refractories used for blast furnace is introduced in this work. Al2O3-Si3N4 composite refractories attacked by alkali vapor and blast furnace slag was investigated. High performance Al2O3-Si3N4 composite refractories was produced and used at both 2560m^3 blast furnaces of Tan-gsteel and No. 5 blast furnace of Shaosteel.     

Optimization of Ironmaking Blast Furnace Operations Using an Integrated Mathematical Model

Optimization of ironmaking blast furnaces (BFs) must consider bottom and top operations. This is done by a recently developed integrated BF model covering the BF below the burden surface. Key operating parameters are focused, viz. coal rate, oxygen enrichment, blast temperature, and burden central opening extent. Numerical orthogonal experiments are thus conducted. Fitting the simulation data yields a set of empirical correlations predicting BF performance indicators. After the fitting accuracy test, the correlations are used for multi-objective optimization and operatable zone identification.     

硬质压入修补料在2516m3高炉中的应用实践

对硬质压入修补料在某厂2516m3高炉的应用情况进行了介绍，对压入修补的效果进行了分析，并对高炉压入修补技术的改进进行了讨论。     

Process Development for the Removal of Zinc and Cadmium from Wastewater Using Slag—A Blast Furnace Waste Material

Abstract

Blast furnace slag, a waste generated in steel plants in India, has been converted into a low cost potential adsorbent. The resulting product has been characterized and used for the removal of zinc and cadmium. The effect of particle size, contact time, and surface loading of zinc and cadmium on the adsorbent for their removal have been studied at the optimum pH (6.0 for Zn²⁺ and 5.0 for Cd²⁺). Kinetic studies were undertaken to show the mechanistic aspects of the process and to obtain the thermodynamic parameters. Sorption data have been correlated with both Langmuir and Freundlich adsorption models. Column operations were also performed in an attempt to simulate industrial conditions. Some feasibility experiments have been performed with a view to recovering Zn²⁺ and Cd²⁺ and for the chemical regeneration of the spent columns without dismantling them.     

高炉用出铁口炮泥的致密化研究

针对高炉用高密度出铁口炮泥所用碳黑的几个特性，如炭黑的平均粒度和DBP吸油量等，研究了碳黑特性对焦油添加量的影响，结果发现使用DBP吸油量小的碳黑可以减少必要的焦油添加量，获得组织致密且耐蚀性好的出铁口炮泥。     

高炉矿焦槽全自动上料控制系统

介绍高炉矿焦槽全自动上料控制系统的硬件配置、网络结构和软件功能设计方法。该高炉已投入生产,运行稳定,能充分发挥设备性能,满足生产需求。     

高炉铁水沟内衬用新型浇注料及捣打料

在库兹涅茨克钢铁公司的4号及5号高炉的铁水沟使用了Динур公司生产的新型烧注料及捣打料，有助于提高其内衬的使用寿命，并降低耐火材料的单位消耗。     

高炉矿焦槽及上料控制系统

以某钢铁厂1 800m~3高炉为例,介绍高炉矿焦槽及上料控制系统的硬件配置、网络结构和主要控制功能。     

高炉用耐火材料的发展

结合当前国内外高炉对耐火材料的要求，概述了高炉炉身、炉腰、炉腹、炉缸用耐火材料的发展状况。     

我国高炉用耐火材料的进展

结合高炉炉身、炉缸、炉底、风口和出铁沟的工作条件,阐述了相应部位用耐火材料的发展进程。     

高炉喷吹半焦及其性能分析

对2种高炉喷吹用煤和3种半焦的可磨性指数、着火点、爆炸性、灰熔点及燃烧性进行了研究,考察了5种原料的冶金性能及配煤对高炉喷吹性能的影响,确定了合理的配煤方案. 结果表明,高炉喷吹煤粉配加半焦后,混合煤的可磨性增加,爆炸性减弱,着火点降低,灰熔点提高,燃烧率约为85%. 半焦配比达40%时,混合煤用于高炉喷吹可行,并可获得更优良的冶金性能.     

Rheological and Adhesive Behavior of Gunning Mix for Blast Furnace Repair

The aim of this experimental work was to investigate the theological and adhesive performance of gunning mix suspensions.The results of rheological tests indicate that:the rheological curve of gunning mix bonded by high-alumina cement(HACG) is Bingham type;the rheological curve of low cement gunning mix(LCG) bonded by microsilica is characterized by pseudo-plasticity fluid with yielding stress;and the rheological property of low-cement gunning mix bonded by microsilica is proved to be better than that of gunning mix bonded by cement.Meanwhile as indicated by the adhesive teste;the better the rheological properties of gunning mix suspension,the better the repair effect would be.     

高炉污染监测技术

介绍了对高炉监测的工作经验，总结性地提出了高炉污染的技术要求。     

基于NARX神经网络的高炉冶炼过程Si元素的预测与智能控制

使用NARX动态神经网络建立高炉冶炼过程中Si元素的单步预测与双步预测模型,分析使用NARX神经网络建模在过程工业中进行动态控制的可行性。通过实验结果发现,单步预测的命中率(误差±0:1)达到了近100%,而方向预测的正确率达到了80%。同时,双步预测的命中率也达到了近100%,而对变化方向的预测的准确率达到了90%,可以看出运用NARX神经网络对高炉冶炼过程Si元素进行预测控制的可行性并具有较高的预测精度。