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    • 10. 发明公开
    • HOCHOFEN UND VERFAHREN ZUM BETRIEB EINES HOCHOFENS
    • EP3008218A1
    • 2016-04-20
    • EP14730814.2
    • 2014-06-05
    • CCP Technology GmbH
    • KÜHL, Olaf
    • C21B5/06C21B7/00
    • C21B5/06C10K3/026C10L1/02C10L1/04C10L2290/26C21B7/002C21B2100/22C21B2100/282C21B2100/62F27B1/10F27D17/001F27D17/008Y02P10/122Y02P10/128Y02P10/265Y02P10/283
    • The problem addressed by the invention is that of creating a blast furnace and a method for operating a blast furnace that are suitable for reducing the CO
      2 emission and the amount of additives and heating fuels compared to currently used metallurgical plants. This problem is solved by a process for processing metal ores, comprising the following steps: reducing a metal ore, in particular a metal oxide; producing a top gas containing CO
      2 in a blast-furnace shaft; discharging the top gas from the blast furnace; conducting at least part of the top gas directly or indirectly to a CO
      2 converter and reducing the CO
      2 contained in the top gas to CO in the CO
      2 converter; and conducting at least a first part of the CO from the CO
      2 converter into the blast-furnace shaft. In addition to the solution of the problem stated above, CO is produced by means of the process as a gaseous reductant that can be easily introduced into the blast-furnace shaft. A blast furnace for extracting metal that operates in accordance with the process comprises the following: a blast-furnace shaft having a first top-gas outlet and at least one CO inlet; a CO
      2 converter, which has a CO
      2 converter entry and a CO
      2 converter gas inlet for gases containing CO
      2 and is suitable for reducing CO
      2 to CO; wherein the top-gas outlet is connected directly or indirectly to the CO
      2 converter gas inlet; and wherein the CO
      2 converter has at least a first CO outlet for discharging a first part of the CO produced in the CO
      2 converter, the at least first CO outlet being connected directly or indirectly to the blast-furnace shaft.
    • 本发明涉及一种用于操作高炉的高炉和一种能够减少二氧化碳产生并减少施加的添加剂和加热材料的量与当前已知的冶金设备相比的方法。 金属矿石的金属制造方法解决了这个问题,包括以下步骤:还原金属矿,特别是金属氧化物; 在高炉井中生产含CO 2的炉煤; 从高炉轴排出炉气; 将至少一部分炉煤气直接或间接地引导到CO 2转化器中,并将CO 2转化器中所含的炉内气体中的CO 2还原成CO,将来自CO 2转化器的CO的至少一部分引入高炉炉中。 除了解决上述问题之外,该方法还产生可以容易地引入鼓风炉轴的气态还原剂CO。