DIRECT REDUCED IRON COMPACTING METHOD, DIRECT REDUCED IRON COMPACTING APPARATUS, AND MOLTEN IRON MANUFACTURING APPARATUS CONTAINING SAME
    1.
    发明公开
    DIRECT REDUCED IRON COMPACTING METHOD, DIRECT REDUCED IRON COMPACTING APPARATUS, AND MOLTEN IRON MANUFACTURING APPARATUS CONTAINING SAME 审中-公开
    直接还原铁浓缩方法,直接还原铁浓缩装置和含有相同浓度铁水浓缩装置的熔融铁制造装置

    公开(公告)号:EP3228717A1

    公开(公告)日:2017-10-11

    申请号:EP15865349.3

    申请日:2015-11-16

    申请人: Posco

    IPC分类号: C22B1/14

    摘要: Provided are a method and an apparatus for agglomerating direct-reduced iron which are capable of efficiently removing gas existing in direct-reduced iron, and an apparatus for manufacturing molten iron including the same. A method of agglomerating direct-reduced iron includes: i) filling a space in reduced iron with one or more gases selected from a group consisting of carbon monoxide and carbon dioxide; and ii) converting the carbon monoxide into carbon dioxide and carbon while agglomerating the reduced iron.

    摘要翻译: 本发明提供能够有效地除去直接还原铁中存在的气体的直接还原铁凝集的方法和装置以及包括其的用于制造熔融铁的装置。 使直接还原铁团聚的方法包括:i)用选自一氧化碳和二氧化碳的一种或多种气体填充还原铁中的空间; 和ii)在使还原铁附聚的同时将一氧化碳转化为二氧化碳和碳。

    CHEEK PLATE OF REDUCED IRON AGGLOMERATION APPARATUS

    公开(公告)号:EP3358024A1

    公开(公告)日:2018-08-08

    申请号:EP16851970.0

    申请日:2016-06-07

    申请人: Posco

    IPC分类号: C22B1/24 C22B1/248 B22F3/03

    摘要: Provided is a cheek plate for an apparatus for agglomerating reduced iron, the cheek plate including: a cover portion which has a fan shape and is installed at each of both sides of a pair of rollers for processing the reduced iron to prevent the reduced iron from leaking to a lateral space formed between the rollers; roller close contact portions which protrude from inner rim portions of the cover portion and are in close contact with outer portions of the rollers to maintain airtightness of the space between the rollers; and gas discharge portions which extend along plate surfaces of the roller close contact portions, and discharge gas produced when processing the reduced iron, thereby effectively discharging gas produced when processing the reduced iron while increasing close contact force between the cheek plates and both sides of the rollers.

    METHOD AND DEVICE FOR REMOVING DUST PARTICLES FROM REDUCING GAS
    5.
    发明公开
    METHOD AND DEVICE FOR REMOVING DUST PARTICLES FROM REDUCING GAS 审中-公开
    VERFAHREN UND VORRICHTUNG ZUM ENTFERNEN VON STAUBPARTIKELN AUS REDUKTIONSGAS

    公开(公告)号:EP2638945A2

    公开(公告)日:2013-09-18

    申请号:EP11839345.3

    申请日:2011-10-20

    申请人: Posco

    IPC分类号: B01D46/00 B01D45/00

    摘要: The present invention relates to a method and device for removing dust particles from reducing gas. The method of the present invention comprises a step of providing reducing gas, a step of injecting the reducing gas into a chamber including a sacrificial nozzle therein, and a step of discharging the reducing gas from the chamber. According to the present invention, since low-melting alkali chloride contained in the reducing gas is removed before being blown into a fluidized reducing furnace, the operation rate of the fluidized reducing furnace is improved due to the reduced clogging of the distribution nozzle in the fluidized reducing furnace, and the ore reduction rate is increased and fuel costs are reduced as the temperature of the reducing gas is increased.

    摘要翻译: 本发明涉及从还原气体除去灰尘颗粒的方法和装置。 本发明的方法包括提供还原气体的步骤,将还原气体注入到其中包括牺牲喷嘴的室中的步骤以及从所述室排出还原气体的步骤。 根据本发明,由于在吹入流化还原炉之前将包含在还原气体中的低熔点碱金属氯化物除去,所以流化还原炉的运行速率由于流化床中分配喷嘴的堵塞减少而得到改善 并且随着还原气体的温度升高,矿石的还原率提高,燃料成本降低。