Abstract

The complex of research works carried out by the NTMK team and the leading research teams of UIM, IMET UB RAS and Ural Federal University expanded the theoretical foundations of processing vanadium-containing titanomagnetites. The blast furnaces have achieved a specific productivity of over 3.0 t/m³, which is the best indicator in Russia. Specific fuel and carbon consumption is the best in Russia. The conditions for the operation of blast furnaces, in which the development of carbide formation processes is significantly reduced, have been established. Measures have been implemented that ensure the smelting of cast iron with a low content of silicon and titanium. The main measures are: maximum forcing of the furnace; increased pressure under the mouth; oxygen enrichment of the blast; as well as increasing the rate of filtration through the coke packing by optimizing the properties of the slag and increasing the hot strength of the coke. The introduction of blast-furnace smelting technology with the use of staflux and the injection of pulverized coal has made it possible to reduce the consumption of total carbon in the fuel to 418 kg/t of cast iron.

中文翻译：

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含钒钛磁铁矿加工工艺的改进

摘要

NTMK团队和UIM，IMET UB RAS和乌拉尔联邦大学的领先研究团队共同进行的研究工作扩展了加工含钒钛磁铁矿的理论基础。高炉的比生产率超过3.0 t / m ³，这是俄罗斯最好的指标。特定燃料和碳的消耗量在俄罗斯是最好的。已经建立了高炉操作的条件，其中大大降低了碳化物形成过程的发展。已采取措施确保熔炼硅和钛含量低的铸铁。主要措施是：炉子的最大受力；口腔下的压力增加；爆炸中的氧气富集；以及通过优化矿渣的性质和提高焦炭的热强度来提高通过焦炭填料的过滤速率。