ANLAGENVERBUND ZUR STAHLERZEUGUNG UND VERFAHREN ZUM BETREIBEN DES ANLAGENVERBUNDES
    33.
    发明公开
    ANLAGENVERBUND ZUR STAHLERZEUGUNG UND VERFAHREN ZUM BETREIBEN DES ANLAGENVERBUNDES 审中-公开
    阿拉伯联合酋长国塞尔维亚联合国维和部队

    公开(公告)号:EP3080309A1

    公开(公告)日:2016-10-19

    申请号:EP14815582.3

    申请日:2014-12-11

    申请人: ThyssenKrupp AG

    IPC分类号: C21B5/06 C21B7/00 C21C5/38

    摘要: The invention relates to a plant combination for producing steel, comprising a blast furnace (1) for producing raw iron, a converter steel mill (2) for producing raw steel, a gas line system for gases that arise in the production of raw iron and the production of raw steel, and a power plant (3) for generating current. The power plant (3) is operated by means of a gas that comprises at least a partial amount of the blast-furnace gas (7) arising in the blast furnace (1) in the production of raw iron and/or a partial amount of the converter gas (9) arising in the converter steel plant (2). According to the invention, a chemical or biotechnology plant (12) is provided, which is connected to the gas line system and is connected in parallel with the power plant (3) with regard to the gas supply. The gas line system comprises a gas diverter (13) for diving the gas mass flows fed to the power plant (3) and to the chemical or biotechnology plant (12), which gas diverter can be operationally controlled. Externally obtained current (15) and power-plant current (16) generated by the power plant (3) of the plant combination are used to cover the current demand of the plant combination. The current proportion of the externally obtained current (15) with respect to the total current demand of the plant combination is defined as variable process quantity and the useful-gas amount (N1) fed to the power plant process is determined in dependence on said process quantity.

    摘要翻译: 本发明涉及一种用于钢铁生产的植物复合体,包括生产生铁的高炉,用于生产粗钢的转炉炼钢厂,用于生产生铁的气体导气系统和/或生产 粗钢和发电厂。 发电厂用气体操作,该气体包括至少部分量的生铁中产生的高炉顶部气体和/或部分量的转化器气体。 根据本发明,提供化学或生物技术设备并连接到气体传导系统并且相对于气体供应与发电设备并联布置。 外部获得的电力和发电厂电力用于覆盖工厂综合体的电力需求。

    Method for operating a top gas recycling blast furnace installation
    35.
    发明公开
    Method for operating a top gas recycling blast furnace installation 审中-公开
    Verfahren zum Betreiben einergichtgasrückführendenHochofenanlage

    公开(公告)号:EP2886666A1

    公开(公告)日:2015-06-24

    申请号:EP13306802.3

    申请日:2013-12-20

    IPC分类号: C21B5/06 C21B9/14

    摘要: Method of operating a blast furnace installation comprising a top gas recycle blast furnace (1) and hot stones (20), whereby a hydrocarbon containing fuel (10) is transformed into a transformed gas stream (15) consisting mainly of CO and H 2 and substantially devoid of hydrocarbon, whereby a low-heating-value gaseous fuel (27) is generated comprising a mixture of said transformed gas (15) with a portion of the CO 2 - rich tail gas (8) obtained by decarbonatation of the blast furnace gas (3), and whereby said low-heating-value fuel (27) is used to heat the hot furnace gas (9, 19) is heated before being injected into the blast-furnace (1).

    摘要翻译: 操作包括顶部气体再循环高炉(1)和热石(20)的高炉装置的方法,由此将含烃燃料(10)转化为主要由CO和H 2组成的转化气流(15),以及 基本上不含烃,由此产生低热值气体燃料(27),其包括所述转化气体(15)与通过高炉脱碳获得的富CO 2尾气(8)的一部分的混合物 气体(3),并且由此所述低热值燃料(27)用于加热热炉气体(9,19)在被注入高炉(1)之前被加热。

    METHOD AND SYSTEM FOR OPERATING A BLAST FURNACE WITH TOP-GAS RECYCLE AND A FIRED TUBULAR HEATER
    36.
    发明公开
    METHOD AND SYSTEM FOR OPERATING A BLAST FURNACE WITH TOP-GAS RECYCLE AND A FIRED TUBULAR HEATER 审中-公开
    FOR运行高炉GISCHTGASRECYCLING和方法及系统发射管散热器

    公开(公告)号:EP2870225A2

    公开(公告)日:2015-05-13

    申请号:EP13782823.2

    申请日:2013-07-03

    摘要: A blast furnace system is used wherein the coke rate is decreased by recycling upgraded top gas from the furnace back into its shaft section (which upgraded top gas is heated in a tubular heater prior to being recycled). The top gas, comprising CO, CO
    2 and H
    2 , is withdrawn from the upper part of the blast furnace; cooled and cleaned of dust, water, and CO
    2 for increasing its reduction potential and is heated to a temperature above 850°C before being recycled thus defining a first gas flow path used during normal operation of the blast furnace. Uniquely, a second gas flow path for continued circulation of top gas selectively through the heater and a cooler during operation interruptions of the blast furnace allows time for gradual controlled cool down of the heater in a manner to avoid heat-shock damage to the tubular heater.

    摘要翻译: 高炉系统用于worin焦炭率通过再循环升级顶部气体从炉减少回到其轴部(这升级顶部气体在管式加热器被再循环之前被加热)。 顶部气体,含有CO,CO 2和H 2,从鼓风炉的上部抽出; 冷却和灰尘,水和CO 2清洗以增加其还原电势和被回收由此限定所述高炉的正常手术期间使用的第一气体流路之前被加热到高于850℃的温度。 与众不同的是,用于选择性地通过加热器顶部气体的持续循环并在高炉的手术中断一个第二气体流路的冷却器允许以这样的方式时间用于加热器的逐步控制的冷却,以避免与管状加热器的热冲击损坏 ,

    BLAST FURNACE OPERATION METHOD
    39.
    发明公开
    BLAST FURNACE OPERATION METHOD 有权
    操作程序焚烧炉

    公开(公告)号:EP2431484A4

    公开(公告)日:2014-06-11

    申请号:EP10780698

    申请日:2010-05-28

    申请人: JFE STEEL CORP

    IPC分类号: C21B5/00 C21B5/06

    摘要: Provided is a method for operating a blast furnace, the method being capable of avoiding, particularly, a failure to heat a furnace top portion at low cost even in the case of performing a low-RAR operation (the reduction of carbon dioxide emissions). During the operation of a blast furnace using carbon iron composite as a portion of a charging material, one, two, or three of the injection temperature, injection rate, and vertical injection position of gas injected from a shaft portion are controlled in combination depending on a top gas temperature, whereby the decrease in temperature of the top gas is suppressed. Therefore, a failure to heat a furnace top portion can be avoided at low cost without significant capital investment even in the case of performing a low-RAR operation. Depending on the temperature of a shaft gas injected from the shaft portion, the vertical injection position of the shaft gas is adjusted to a position at which the inside temperature of the blast furnace is lower than the temperature of the shaft gas; hence, the inside of the blast furnace is not cooled by the shaft gas.