METHOD FOR OPERATING A BLAST FURNACE AND BLAST FURNACE INSTALLATION
    97.
    发明公开
    METHOD FOR OPERATING A BLAST FURNACE AND BLAST FURNACE INSTALLATION 有权
    一种用于操作竖炉

    公开(公告)号:EP2350324A1

    公开(公告)日:2011-08-03

    申请号:EP09745035.7

    申请日:2009-10-30

    申请人: Paul Wurth S.A.

    摘要: The present invention proposes a method for operating a blast furnace (12) comprising the steps of recovering top gas from the blast furnace (12); submitting at least a portion of the top gas to a recycling process; and feeding the recycled top gas back into the blast furnace (12). According to an important aspect of the invention, the recycling process comprises feeding the recovered top gas to a reformer unit (40); feeding volatile carbon containing material (42) to the reformer unit (40); proceeding to flash gasification of the volatile carbon containing material in the reformer unit (40), at a temperature between 1100 and 1300°C, and thereby producing devolatised carbonaceous material and synthesis gas; and allowing the devolatised carbonaceous material and synthesis gas to react with the recovered top gas. The invention also proposes a blast furnace installation (1) with a blast furnace (12) and a top gas recycling installation (14) for carrying out the above method.

    Device for regulating the temperature of a gas in a hot gas main
    99.
    发明公开
    Device for regulating the temperature of a gas in a hot gas main 审中-公开
    Vorrichtung zur Temperaturregelung eines气体在einemHeißgasstrom

    公开(公告)号:EP2253723A1

    公开(公告)日:2010-11-24

    申请号:EP09160805.9

    申请日:2009-05-20

    摘要: The present invention proposes a device (10) for regulating the temperature of a gas in a hot gas main for feeding hot gas to a blast furnace. Such a device (10) comprises a mixing pot (14) with a first mixing chamber (16) and a second mixing chamber (18), the first and second mixing chambers (16, 18) being in fluid communication with each other by means of a Venturi-type restriction (20). The first mixing chamber (16) is provided with a first inlet port (22) for feeding hot gas into the first mixing chamber (16), a second inlet port (26) for feeding cold gas into the first mixing chamber (16) and a third inlet port (56) for feeding cold gas into the second mixing chamber (18). The first mixing chamber (16) is further provided with a first outlet port (42) for feeding a first stream of mixed gas from the first mixing chamber (16) to a first gas distribution system (46), while the second mixing chamber (18) is provided with a second outlet port (60) for feeding a second stream of mixed gas from the second mixing chamber (18) to a second gas distribution system (64). The first stream of mixed gas has a temperature different from a temperature of the second stream of mixed gas.

    摘要翻译: 本发明提出一种用于调节用于向高炉供给热气体的热气体主体中的气体的温度的装置(10)。 这种装置(10)包括具有第一混合室(16)和第二混合室(18)的混合罐(14),第一和第二混合室(16,18)通过装置彼此流体连通 的文丘里型限制(20)。 第一混合室(16)设置有用于将热气体送入第一混合室(16)的第一入口(22),用于将冷气送入第一混合室(16)的第二入口(26)和 用于将冷气送入第二混合室(18)的第三入口(56)。 第一混合室(16)还设置有第一出口(42),用于将来自第一混合室(16)的第一混合气体流供给到第一气体分配系统(46),而第二混合室 18)设置有用于将来自第二混合室(18)的第二混合气体流供给到第二气体分配系统(64)的第二出口(60)。 第一混合气体流具有与第二混合气体流的温度不同的温度。

    Procédé de conduite d'un haut fourneau
    100.
    发明公开
    Procédé de conduite d'un haut fourneau 失效
    霍夫霍芬斯(Ver。

    公开(公告)号:EP0302041A2

    公开(公告)日:1989-02-01

    申请号:EP88870128.1

    申请日:1988-07-27

    IPC分类号: C21B5/00

    摘要: Procédé de conduite d'un haut fourneau, dans lequel on injecte simultanément du charbon pulvérisé et un comburant très riche en oxygène au niveau des tuyères principales du haut fourneau, et du gaz réducteur chaud au niveau de la zone de réserve. Le gaz réduc­teur chaud est produit à partir d'un gaz de récupération, en par­ticulier à partir de gaz de gueulard, notamment en mélangeant ce gaz de gueulard avec du gaz de four à coke; il est injecté à une température comprise entre 850 et 1200°C.

    摘要翻译: 用于操作高炉的方法,其中粉煤和氧气非常丰富的氧气同时喷射在高炉的主风口处,以及在后跟区的高度处的热还原气体。 特别是通过将炉顶气体与焦炉煤气混合,由回收气体,特别是炉顶气体产生热还原气体; 在850〜1200℃的温度下注入