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    • 1. 发明授权
    • Method for the treatment of aluminum in a furnace
    • 在炉中处理铝的方法
    • US07648558B2
    • 2010-01-19
    • US10555313
    • 2004-03-30
    • Bruno AllemandJean-Claude Vuillermoz
    • Bruno AllemandJean-Claude Vuillermoz
    • C22B21/00
    • F27B3/28C22B21/0084C22B21/0092F27D19/00F27D2019/0006F27D2019/0034Y02P10/218
    • Methods for treating aluminum in a furnace. An aluminum charge is introduced into a furnace and melted with heat from at least one burner. The burner is supplied with at least one oxidizer and at least one fuel. The oxidizer is made up of at least 10% oxygen by volume. The concentration of a first gas is measured in the furnace atmosphere or in a flue gas exiting the furnace. The oxidation of the molten aluminum is then reduced by holding the flow rate of the oxidizer steady while varying the flow rate of the fuel, according to the concentration of a second gas in the furnace or in the flue gas exiting the furnace. The concentration of the second gas is determined by comparing the measured species concentration and the intrinsic concentration which would be present absent the aluminum charge.
    • 在炉中处理铝的方法 将铝电荷引入炉中并用来自至少一个燃烧器的热量熔化。 燃烧器配备有至少一种氧化剂和至少一种燃料。 氧化剂由至少10体积%的氧气组成。 第一气体的浓度在炉气氛或离开炉的烟道气中测量。 然后,根据炉子内的第二气体或离开炉子的烟道气的浓度,通过保持氧化剂的流量稳定地改变燃料的流量,从而减少熔融铝的氧化。 第二气体的浓度通过比较测量的物质浓度和不存在铝电荷时将存在的固有浓度来确定。