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    • 2. 发明授权
    • Gas cleaning method and apparatus
    • 气体清洗方法和装置
    • US4234335A
    • 1980-11-18
    • US901107
    • 1978-04-28
    • Helmut WeissertTheodor NiessKarl-Rudolf Hegemann
    • Helmut WeissertTheodor NiessKarl-Rudolf Hegemann
    • C21B7/22B01D47/10C21B7/00F02C1/00F27D17/00C21B5/00
    • B01D47/10C21B7/007Y02P70/34Y10S261/54
    • A washer having a controlled-gap scrubber is connected to the gas outlet of a pressure blast furnace and an expansion turbine for the recovery of energy is connected downstream of the controlled-gap washer unit while a bypass is connected across the turbine. The system has operating regions A and B on a diagram in which the gas pressure is plotted along the ordinate and the volume rate of flow of gas from said blast furnace is plotted along the abscissa, the region A being defined between the turbine-insertion and the turbine-operating characteristic curves plotted on the diagram, the region B being defined between the turbine-operating characteristic curve and the corrected blast-furnace characteristic curve. The pressure in the blast furnace where the operating point is in region A while the gas traverses the turbine is controlled by varying the gap width of said control-gap washer unit in response to the pressure. The pressure in said blast furnace when the operating point is in the region B is controlled by varying the cross-section of the bypass valve, the gap of the washer being controlled in response to the differential pressure thereacross.
    • 具有可控间隙洗涤器的洗衣机连接到压力高炉的气体出口,并且用于回收能量的膨胀涡轮机连接在受控间隙清洗器单元的下游,同时跨越涡轮机连接旁路。 该系统在其中沿着纵坐标绘制气体压力的图中具有操作区域A和B,并且沿着横坐标绘制来自高炉的气体的体积流速,区域A被限定在涡轮机插入和 涡轮机工作特性曲线绘制在图中,区域B定义在涡轮机运行特性曲线和校正高炉特性曲线之间。 通过响应于压力改变所述控制间隙洗涤器单元的间隙宽度来控制气体横穿涡轮机时工作点在区域A中的高炉中的压力。 通过改变旁通阀的横截面来控制工作点在区域B内的高炉中的压力,由此,垫圈的间隙响应于其上的差压来控制。
    • 6. 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
    • 8. 发明授权
    • Method and apparatus for recovering energy possessed by exhaust gas from
blast furnace by turbine
    • 通过涡轮机回收高炉废气所具有的能量的方法和装置
    • US4184323A
    • 1980-01-22
    • US862588
    • 1977-12-20
    • Setsuo AbeTomomi AsakuraTakeshi ShiratoMotomasa Miyake
    • Setsuo AbeTomomi AsakuraTakeshi ShiratoMotomasa Miyake
    • C21B7/00F01K25/14F02C1/00F02C9/16F27D17/00F02C9/02
    • F01K25/14C21B7/007
    • Method and apparatus for recovering heat energy and kinetic energy of a gas discharged from the top of a blast furnace effectively as electric energy or other energy by a turbine and a control mechanism. An exhaust gas is supplied to a septum valve and then into a turbine connected in parallel, and the capacity or design value of the turbine is set at a mean value of the total flow rate of the exhaust gas varying with the lapse of time during the normal steady operation of the blast furnace. When the total flow rate of the exhaust gas is lower than the mean value, all the exhaust gas is supplied to the turbine to recover the energy of the exhaust gas and the top pressure of the furnace is controlled by a governor valve regulating the speed of the turbine. On the other hand, when the total flow rate of the exhaust gas is higher than the mean value, a part of the exhaust gas corresponding to the mean value of the flow rate is supplied to the turbine to recover the energy of the exhaust gas, while the remaining part of the exhaust gas corresponding to the excess over the mean value is supplied to the septum valve and the top pressure of the blast furnace is controlled by the septum valve.
    • 从高炉顶部回收热能和动能的方法和装置,作为涡轮机和控制机构的电能或其他能量。 排气被输送到隔膜阀然后进入并联连接的涡轮机中,并且涡轮机的容量或设计值被设定为废气的总流量的平均值随着时间的流逝而变化 正常运行高炉。 当废气的总流量低于平均值时,所有废气都被供给到涡轮机以回收废气的能量,并且炉子的顶部压力由调节阀控制, 涡轮机。 另一方面,当废气的总流量高于平均值时,将与流量的平均值相对应的一部分废气供给到涡轮机以回收排气的能量, 而对应于超过平均值的过量的废气的剩余部分被供应到隔膜阀,并且高炉的顶部压力由隔膜阀控制。
    • 9. 发明授权
    • Method and apparatus for controlling the furnace top gas pressure of
blast furnaces
    • 用于控制高炉炉顶气压的方法和装置
    • US4050679A
    • 1977-09-27
    • US736108
    • 1976-10-27
    • Kiyotoshi Sakai
    • Kiyotoshi Sakai
    • C21B5/00C21B7/00C21B7/20
    • C21B7/007
    • In a blast furnace installation comprising a blast furnace and a raw material charging apparatus including a hollow inverted frustum shaped rotary hopper mounted above the blast furnace, conveyor means for supplying the raw material to the rotary hopper, a hollow disc shaped impeller located beneath the rotary hopper for receiving the raw material therefrom, stationary inclined chute means including an annular chamber member surrounding the periphery of the impeller for receiving the raw material discharged from the impeller, and an electric motor for driving the impeller, the gas pressure in the furnace top is accurately controlled by detecting the gas pressure in the annular chamber member at a plurality of circumferentially spaced points, comparing the mean value of the detected gas pressure with a preset furnace top gas pressure for producing a control signal proportional to the difference therebetween, and controlling the speed of the motor by the control signal thereby reducing substantially to zero the amount of the gas discharged to the atmosphere from the impeller.
    • 在包括高炉和包括安装在高炉上方的中空倒立的截头锥形旋转料斗的原料装料装置的高炉装置中,用于将原材料供应到回转料斗的输送装置,位于转盘下方的中空盘形叶轮 用于从其接收原材料的料斗,固定倾斜滑槽装置,包括围绕叶轮周边的环形室构件,用于接收从叶轮排出的原料,以及用于驱动叶轮的电动机,炉顶中的气体压力为 通过在多个周向间隔的点处检测环形室构件中的气体压力来精确控制,将检测到的气体压力的平均值与预设的炉顶气体压力进行比较,以产生与它们之间的差异成比例的控制信号,并且控制 通过控制信号使电机的转速降低 从本质上讲,从叶轮排放到大气中的气体的量为零。