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    • 1. 发明公开
    • Methods and apparatus for molten metal fume supression
    • Verfahren und Vorrichtung zur Beseitigung von Abgasen ausMetallbädern。
    • EP0071359A1
    • 1983-02-09
    • EP82303664.5
    • 1982-07-13
    • USS ENGINEERS AND CONSULTANTS, INC.
    • Ball, David MarstenSumsion, Alton EarlTaylor, Zane StevensBillings, Laird DeanHills, Lamar Steward, Jr.Hopkins, Jay RichardElder, Arthur LewisOstergaard, Mack RobertSmith, Dennis RalphWarner, Reed Hodson
    • F27D17/00C21C5/38C21B7/14B08B15/02B22D45/00
    • F27D17/001
    • Methods and apparatus for the suppression of fume from a body of molten metal is described. One method involves blanketing the molten metal bath with a mixture of pressurized inert gas and finely divided or atomized particles of water. The inert gas may be argon, nitrogen or steam. An apparatus for carrying out this method comprises an array of nozzles supported adjacent the mouth of a receiver vessel and connected to sources of the inert gas and water.
      Another method entails burning fuel in the immediate vicinity of the molten metal surface to consume and/or displace ambient air thereby to starve the bath of oxygen and, concomitantly, to suppress the formation of the fume-producing metallic oxide.
      An apparatus for carrying out this method, particularly adapted for suppressing fume generated in the flow of molten metal through the runner system of a blast furnace cast house, includes a burner from which fuel and air in predetermined amounts are discharged to create flame and disperse it along the axis of the runners. The flame operates to consume ambient air in the combustion process thereby to starve the region over the metal streams of oxygen that would otherwise combine with metal vapors to create fume-producing metallic oxides.
    • 描述了用于从熔融金属体中抑制烟雾的方法和装置。 一种方法包括用加压惰性气体和细分散或雾化的水颗粒的混合物来覆盖熔融金属浴。 惰性气体可以是氩气,氮气或蒸气。 用于执行该方法的装置包括一个靠近接收器容器的嘴部并连接到惰性气体和水源的喷嘴阵列。 另一种方法需要在熔融金属表面的紧邻附近燃烧燃料以消耗和/或置换环境空气,从而使氧气池挨饿,同时抑制产生烟气的金属氧化物的形成。 用于执行该方法的装置,特别适于抑制通过高炉铸件的流道系统产生的熔融金属流中产生的烟雾,包括燃烧器,排出预定量的燃料和空气以产生火焰并将其分散 沿着跑步者的轴线。 火焰操作以消耗燃烧过程中的环境空气,从而使该区域在氧气的金属流上饥饿,否则这些氧气将与金属蒸汽结合以产生烟雾产生金属氧化物。