HEATING METHOD AND HEATING APPARATUS
    3.
    发明公开
    HEATING METHOD AND HEATING APPARATUS 失效
    加热方法和加热装置

    公开(公告)号:EP0905262A4

    公开(公告)日:2004-03-24

    申请号:EP97947941

    申请日:1997-12-15

    申请人: JFE STEEL CORP

    摘要: First regenerators (3A-3C) which are in combustion exhaust gas exhaust passages, second regenerators (4A-4C) which are in suction/recovery passages for sucking and recovering N2, an atmospheric gas, are provided to three or more regenerative heaters (1A-1C), respectively. In one (1C) of the regenerative heaters (1A-1C), the sucked N2 atmospheric gas is passed through the second regenerator (4C) to regenerate its sensible heat. In another one (1A), combustion air is passed through the second regenerator (4A) in which the heat is stored and combustion is carried out by using the heated air. Only the combustion exhaust gas is passed through the first regenerator (3A) for regeneration. In the other one (1B), the N2 atmospheric gas is passed through the first regenerators (3A-3C) in which heat is regenerated to convert the regenerated heat into sensible heat, which is supplied to the atmosphere of an object and heats the object. These processes, i.e. combustion, atmospheric gas heating and atmospheric gas suction, are repeated in this order. Thus, the atmospheric gas is recovered and reused, and the sensible heat of the atmospheric gas is converted into the sensible heat of the combustion air to improve the heat efficiency.

    HEATING METHOD AND HEATING APPARATUS
    8.
    发明授权
    HEATING METHOD AND HEATING APPARATUS 失效
    加热方法和加热装置

    公开(公告)号:EP0905262B1

    公开(公告)日:2005-07-27

    申请号:EP97947941.7

    申请日:1997-12-15

    摘要: First regenerators (3A-3C) which are in combustion exhaust gas exhaust passages, second regenerators (4A-4C) which are in suction/recovery passages for sucking and recovering N2, an atmospheric gas, are provided to three or more regenerative heaters (1A-1C), respectively. In one (1C) of the regenerative heaters (1A-1C), the sucked N2 atmospheric gas is passed through the second regenerator (4C) to regenerate its sensible heat. In another one (1A), combustion air is passed through the second regenerator (4A) in which the heat is stored and combustion is carried out by using the heated air. Only the combustion exhaust gas is passed through the first regenerator (3A) for regeneration. In the other one (1B), the N2 atmospheric gas is passed through the first regenerators (3A-3C) in which heat is regenerated to convert the regenerated heat into sensible heat, which is supplied to the atmosphere of an object and heats the object. These processes, i.e. combustion, atmospheric gas heating and atmospheric gas suction, are repeated in this order. Thus, the atmospheric gas is recovered and reused, and the sensible heat of the atmospheric gas is converted into the sensible heat of the combustion air to improve the heat efficiency.

    COMPOSITE MOLTEN IRON MANUFACTURING APPARATUS
    9.
    发明公开
    COMPOSITE MOLTEN IRON MANUFACTURING APPARATUS 审中-公开
    KOMPOSITEISENSCHMELZEHERSTELLUNGSVORRICHTUNG

    公开(公告)号:EP3216880A4

    公开(公告)日:2017-09-13

    申请号:EP15856552

    申请日:2015-09-18

    申请人: POSCO

    CPC分类号: C21B13/00 C21B15/00

    摘要: Provided is a combined molten iron manufacturing apparatus. According to the present invention, it is possible to stably produce molten iron by using conventional metallurgical fuel and raw materials in a molten iron manufacturing apparatus based on the fluidized reduction furnace and the coal filling-type melter-gasifier and stably produce molten iron by using low-grade fuel and raw materials which are unsuitable for conventional metallurgy in a molten iron manufacturing apparatus based on the molten-bath type melting reduction furnace connected thereto, by combining the two molten iron manufacturing apparatuses through an additionally configured separate fluidized reduction furnace in the molten iron manufacturing apparatus based on the fluidized reduction furnace and the coal filling-type melter-gasifier and the molten iron manufacturing apparatus based on the molten-bath type melting reduction furnace.

    摘要翻译: 提供一种组合铁水制造装置。 根据本发明,通过在基于流化还原炉和煤填充型熔融气化炉的铁水生产设备中使用常规的冶金燃料和原料,可以稳定生产铁水,并通过使用稳定生产铁水 在基于与其连接的熔融浴型熔融还原炉的铁水制造装置中,通过将所述两个铁水制造装置经由追加配置的另外的流化还原炉而组合在所述铁水制造装置中的,不适合于以往的冶金学的低品位燃料和原料 基于流化还原炉和煤填充型熔融气化炉的铁水制造装置以及基于熔融浴型熔融还原炉的铁水制造装置。