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钢渣微粉的利用代表目前钢渣资源化利用的最高水平.文章着重对影响钢渣微粉作为商品混凝土掺合料的力学性能的因素进行了分析,采用对比研究的方式对原料(矿物相和化学成分)、细度、微观孔结构等因素对钢渣微粉力学性能的影响进行了全面的剖析,最后对钢渣微粉与矿渣微粉复合后的力学性能影响机理进行了探讨. 相似文献
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文章通过分析高炉熔渣的化学成分组成、泡沫渣的形成机理及玻璃体的形成条件,阐述了高炉熔渣的成分、玻璃体含量等因素对矿渣微粉活性的影响,找到了提高矿渣微粉活性的有效途径。 相似文献
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分析了矿渣的性能以及矿渣微粉在水泥建材中的应用情况和作用,介绍了安钢矿渣微粉生产的装备情况和生产工艺,对工艺参数的调整、生产过程的控制和生产效果进行了分析和总结。 相似文献
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从工艺流程图、网络拓扑图、以及网络通讯数据传输方式及编程等方面介绍了联峰(张家港)矿渣微粉工程自动化控制系统的构成。 相似文献
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矿渣(水淬渣)是炼铁高炉中以熔融态流出的铁渣经水淬急冷处理而成,是冶金工业固体废弃物,又是具有使用价值以及潜在功能优势的建筑材料。通过对国家及自治区政策政策、专家调研、新疆建筑行业的研究分析,认为矿渣微粉在新疆建材市场的应用具有发展潜力。 相似文献
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Ladle-treatment slags are primary wastes from steel production. Slag utilization is prevented by its spontaneous decomposition as a result of polymorphic transformation of dicalcium silicate with decrease in slag temperature. At OOO NLMK-Kaluga, the slag is stabilized by the introduction of boron oxide in the high–magnesia flux during ladle treatment. Industrial tests indicate stabilization of the slag and the formation of a protective layer on the lining, preventing slag corrosion. 相似文献
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It was investigated in which form sulphur is bonded in ladle slags. For this purpose, the mineralogical phases of the ladle slags were qualitatively and quantitatively evaluated by means of a microprobe. This slag characterisation allowed reconstructing the bonding of sulphur into the phases of the ladle slag. Moreover, the reaction process with regard to the ionic theory as well as the structural formula for the mechanism of sulphur bonding were discussed. The bonding of sulphur into calcium aluminate slags is determined by the sulphide ion content in the slag as well as by the ratio of (CaO)/(Al2O3). Calcium sulphide separates only if the slag contains a large number of sulphide ions. When Ca12Al14O33 is separated the sulphide ion is successively integrated into the lattice. The crystal lattice of Ca12Al14O33 is characterised by an open, three‐dimensional anionic network composed of aluminium‐oxygen tetrahedrons linking the edges. In this network, large interstitial spaces are formed, which may be filled with calcium ions on the one hand and statistically with a free oxygen or sulphide ion on the other hand. 相似文献
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Aluminumnitride (AlN) ,duetogoodphysicalandmechanicalproperties ,issuitableformultilayerlayoutandisconsideredasapromisingmaterialforsubstrate ,electronicpackingandlarge scaleintegratedcircuit[1~ 4] .Inaddition ,itiswidelyusedintheoptoelec tronicfield ,suchasMOD… 相似文献
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文章介绍了以钢铁生产中产生的固废冶金渣及收尘系统产生的尘灰为原料,通过回收其中的有用成份锌,实现了对固体废物的资源化和综合利用的方法和工艺,产生了良好的经济效益,减轻了环境污染。 相似文献
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Vinicius Cardoso da Rocha Julio A. M. Pereira Ayumi Yoshioka Wagner V. Bielefeldt Antônio C. F. Vilela 《Metallurgical and Materials Transactions B》2017,48(3):1423-1432
Based on data provided from an industrial plant and FactSage commercial software use, a study of secondary refining slags and inclusion cleanliness was performed. Six heats of two slag series, namely, A and B, with average chemical composition (wt pct) of 43.00CaO-25.90SiO2-12.96Al2O3-18.13MgO for series A and 49.98CaO-23.88SiO2-10.11Al2O3-11.99MgO-4.03CaF2 for series B, were used for the study. Both series used DIN 38MnS6 modified steel. The effective viscosity, solid fraction, composition of the liquid fraction, and slag saturation degree in MgO (calculated through thermodynamic software) were related to the experimental results obtained for the inclusion cleanliness. The B slags showed lower effective viscosity than the A slags, due to their high liquid fraction. Regarding the capacity of slags in the inclusion removal, slag B5 resulted in the lowest inclusion density and was considered as the best choice among the slags studied. The inclusion species formed using B slags are constituted especially of CaO-Al2O3-SiO2 and MgO-Al2O3 and are Al2O3 rich. The presence of sulfide-type inclusions (AlMnS and CaS) were more pronounced among A slags. 相似文献