Shaft furnace and method for operating a furnace
    1.
    发明授权
    Shaft furnace and method for operating a furnace 有权
    轴炉和操作炉的方法

    公开(公告)号:US08309016B2

    公开(公告)日:2012-11-13

    申请号:US12666587

    申请日:2008-06-17

    IPC分类号: C21B13/02

    摘要: The present invention relates to a shaft furnace as well as a method for operating a shaft furnace. For example, the present invention relates to methods for operating a shaft furnace which include charging an upper region of the shaft furnace with raw materials; the raw materials sink in the shaft furnace under the influence of gravity and a part of the raw materials is smelted an/or at least partially reduced under the effect of the atmosphere prevailing within the shaft furnace. The methods further comprise admitting an addition gas via at least one addition opening spaced from a lower admission opening and/or discharging a shaft furnace gas via a shaft furnace gas line to provide discharge of gaseous reaction products from the interior of the shaft furnace.

    摘要翻译: 竖炉技术领域本发明涉及竖炉以及竖炉的操作方法。 例如,本发明涉及一种用于操作竖炉的方法,其包括用原料装入竖炉的上部区域; 原料在重力作用下在竖炉中下沉,一部分原料在竖炉内盛气的作用下熔炼或至少部分减少。 所述方法还包括通过与下进气口间隔开的至少一个附加开口和/或经由竖炉气体管线排出竖炉煤气,从而提供气体反应产物从竖炉内部排出的加气。

    SHAFT FURNACE AND METHOD FOR OPERATING A FURNACE
    4.
    发明申请
    SHAFT FURNACE AND METHOD FOR OPERATING A FURNACE 有权
    炉膛和操作炉的方法

    公开(公告)号:US20100251855A1

    公开(公告)日:2010-10-07

    申请号:US12666587

    申请日:2008-06-17

    IPC分类号: C22B1/00 F27B1/10 F27B1/26

    摘要: The invention relates to a method for operating a shaft furnace (10). According to said method, an upper region (14) of the shaft furnace (10) is charged with raw materials which sink in the shaft furnace (10) under the influence of gravity. Part of the raw materials is melted and/or at least partially reduced by the action of the atmosphere inside the shaft furnace (10). A treatment gas is introduced in a lower region (18) of the shaft furnace (10) by means of at least one lower admission opening (32), said treatment gas at least partially influencing the atmosphere inside the shaft furnace (10). The introduction of the lower treatment gas is dynamically modulated such that, during the modulation, the operating variables, that is pressure p1 and/or volume flow (I), are varied at least temporarily over a time span of ≦40 s, especially ≦20 s, preferably ≦5 s and especially preferably ≦1 s. According to the invention, an addition gas is introduced via at least one addition opening (42) at a distance from the lower admission opening (32), the operating variables of the gas, that is pressure p2 and/or volume flow (II), being at least temporarily varied, and/or a shaft furnace gas is derived by means of a shaft furnace gas line (50) connected to the inside (34) of the shaft furnace (10), for removing gaseous reaction products, the operating variables of the shaft furnace gas, that is pressure p3 and/or volume flow (III), being at least temporarily varied. The variation of the operating variables of the addition gas and/or the shaft furnace gas is carried out according to the invention in such a way that the pressure p1 and/or the volume flow (I) inside (34) the shaft furnace (10) is at least partially increased.

    摘要翻译: 本发明涉及一种操纵竖炉(10)的方法。 根据所述方法,在竖炉(10)的上部区域(14)中装有在重力作用下沉入竖炉(10)的原料。 一部分原料通过竖炉(10)内的气氛的作用而熔化和/或至少部分地减少。 处理气体通过至少一个下入口(32)引入竖炉(10)的下区域(18)中,所述处理气体至少部分地影响竖炉(10)内的气氛。 较低处理气体的引入被动态调节,使得在调制期间,操作变量,即压力p1和/或体积流量(I))至少在