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BLAST FURNACE OPERATION METHOD USING LOW SILICA SINTERED ORE AND LOW SILICA SINTERED ORE

机译:低硅烧结矿和低硅烧结矿的高炉操作方法

摘要

PROBLEM TO BE SOLVED: To obtain a low SiO2 sintered ore, with which the low Si operation is stably enabled for long time in a blast furnace, desirably so as to stably keep the Si concn. in molten iron to ≤0.3 wt.%. ;SOLUTION: In this method obtd. based on such knowledge that the Si content in the molten iron is affected largely with not only SiO2 content in a sintered ore, but also the ratio of CaO component to FeO component, and the Si concn. in the molten iron can stably be reduced in the blast furnace operation using the low SiO2 sintered ore by regulating the CaO/FeO ratio to a specific level or above, the SiO2 component is regulated to ≥5.0 wt.% and the wt. ratio [CaO%]/[FeO%] of the CaO component to the FeO componen is regulated to ≥1.55.;COPYRIGHT: (C)2000,JPO
机译:要解决的问题:为了获得低SiO 2烧结矿,希望在高炉中长时间稳定地进行低Si操作,从而稳定地保持Si含量。在铁水中的含量≤0.3重量%。 ;解决方案:在这种方法中,使用obtd。基于这样的认识,铁水中的硅含量不仅受烧结矿中SiO2的含量的影响很大,而且还受CaO组分与FeO组分的比率以及Si浓度的影响。通过将CaO / FeO比调节至特定水平或更高,在使用低SiO2烧结矿的高炉操作中可以稳定地减少铁水中的铁含量,将SiO2组分调节为≥5.0重量%,并且将SiO2组分调节为≥5.0重量%。 CaO成分与FeO组分的比例[CaO%] / [FeO%]规定为≥1.55。;版权:(C)2000,JPO

著录项

  • 公开/公告号JP2000034527A

    专利类型

  • 公开/公告日2000-02-02

    原文格式PDF

  • 申请/专利权人 NKK CORP;

    申请/专利号JP19980218526

  • 发明设计人 SAKAMOTO NOBORU;KAMOSHITA TOMOO;

    申请日1998-07-16

  • 分类号C22B1/20;C21B5/00;

  • 国家 JP

  • 入库时间 2022-08-22 01:58:49

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