Process and device for melting iron metallurgical materials in a
coke-fired cupola
    1.
    发明授权
    Process and device for melting iron metallurgical materials in a coke-fired cupola 失效
    用于熔炼烧制圆底炉中的铁冶金材料的方法和装置

    公开(公告)号:US5632953A

    公开(公告)日:1997-05-27

    申请号:US492016

    申请日:1995-09-11

    IPC分类号: C21B11/02 F27B1/10 F27B1/16

    摘要: A coke-fired cupola, including: a furnace shaft having a well at one end, a charging device connected to the shaft, a lower-mouth exhaust connected to the shaft below the charging device, and a furnace gas exhaust ring arranged at the shaft below the charging device and the lower-mouth exhaust. Additionally, at least one nozzle is connected to the shaft above the well. The at least one nozzle has a centrally run oxygen lance. A gas recirculating circuit is provided for connecting the furnace gas exhaust ring to the at least one nozzle. The gas recirculating circuit includes an exhaust device connected to the furnace gas exhaust ring, a recirculating gas ring connected to the at least one nozzle and a recirculating gas duct connected between the exhaust device and the recirculating gas ring.

    摘要翻译: PCT No.PCT / EP94 / 00108 Sec。 371 1995年9月11日第 102(e)1995年9月11日PCT PCT 1994年1月18日PCT公布。 第WO94 / 17352号公报 日期:1994年8月4日焦炉式冲天炉,包括:一端具有井的炉轴,连接在轴上的充气装置,与充气装置下方的轴连接的下口排气,以及炉内气体排气 环设置在充电装置下方的轴和下口排气口。 此外,至少一个喷嘴连接到井上方的轴。 至少一个喷嘴具有中心运行的氧枪。 提供了一种气体再循环回路,用于将炉排气环连接到至少一个喷嘴。 气体循环回路包括连接到炉排气环的排气装置,连接到至少一个喷嘴的再循环气体环和连接在排气装置和再循环气体环之间的再循环气体管道。