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    • 5. 发明申请
    • SHAFT FURNACE AND METHOD FOR OPERATING A FURNACE
    • 炉膛和操作炉的方法
    • US20100251855A1
    • 2010-10-07
    • US12666587
    • 2008-06-17
    • Gerd KönigWolfram KönigAlexander BabichDieter Georg SenkHeinrich-Wilhelm GudenauHans-Heinrich Heldt
    • Gerd KönigWolfram KönigAlexander BabichDieter Georg SenkHeinrich-Wilhelm GudenauHans-Heinrich Heldt
    • C22B1/00F27B1/10F27B1/26
    • C21B5/06C21B7/002C21B7/007C21B2100/64F27B1/16F27B1/26F27D17/004
    • 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.
    • 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