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14 条记录 (耗时 0.168 秒)

    Method for introducing gas into a liquid
    7.
    发明公开
    Method for introducing gas into a liquid 无效
    VERFAHREN ZUM EINBRINGEN VON GAS IN EINEFLÜSSIGKEIT

    公开(公告)号：EP0866138A1

    公开(公告)日：1998-09-23

    申请号：EP98104712.9

    申请日：1998-03-16

    申请人： PRAXAIR TECHNOLOGY, INC.

    发明人： Anderson, John Erling ,  Mathur, Pravin Chandra ,  Selines, Ronald Joseph

    IPC分类号： C21C5/46 ,  C21C7/072 ,  B01F3/04 ,  F23D14/20

    CPC分类号： F23D14/22 ,  B01F3/0473 ,  B01F3/04758 ,  B01F5/02 ,  B01F5/0206 ,  C21C5/4606 ,  C21C7/072

    摘要： A method for introducing gas into a liquid wherein a gas stream is ejected from a lance spaced above the liquid surface and directed from the lance onto the liquid surface. The gas retains substantially all its original jet axis velocity when it contacts the liquid surface, and substantially all of the gas penetrates the liquid surface and is introduced into the liquid. Preferably the gas stream is surrounded by a flame envelope running from the lance to the liquid surface, which shields the gas from ambient gas entrainment. The gas stream preferably forms a gas cavity within the liquid having a diameter substantially the same as the diameter of the gas stream as it is ejected from the lance.

    摘要翻译： 一种将气体引入液体中的方法，其中气流从在液面上间隔并从喷枪引导到液面上的喷枪喷出。 当气体接触液体表面时，气体基本保持其原始喷射轴速度，并且基本上所有气体都渗入液体表面并被引入到液体中。 优选地，气流由从喷枪延伸到液体表面的火焰包围围绕，其阻挡气体与环境气体夹带。 气流优选地在液体内形成具有与从喷枪喷出的气流直径基本相同的直径的气体腔。

    Lance/burner for molten metal furnace
    9.
    发明公开
    Lance/burner for molten metal furnace 无效
    Lanze oder Brennerfüreine Metallschmelzofen

    公开(公告)号：EP0866139A1

    公开(公告)日：1998-09-23

    申请号：EP98104713.7

    申请日：1998-03-16

    申请人： PRAXAIR TECHNOLOGY, INC.

    发明人： Mathur, Pravin Chandra ,  Selines, Ronald Joseph ,  Anderson, John Erling

    IPC分类号： C21C5/52 ,  C21C5/46 ,  F27B3/08

    CPC分类号： F27B3/225 ,  C21C5/4613 ,  C21C5/5217 ,  Y02P10/216

    摘要： A method for effectively providing main gas into a pool of molten metal, which is particularly useful for use in an electric arc furnace. The method employs combustion of secondary oxygen with fuel to form a flame envelope around a main gas stream which protects the main gas from entrainment of ambient gases as it passes through the headspace of the furnace. This enables the gas to retain to a substantial degree its original force upon injection into the headspace and thus may be injected into the furnace at a safe distance from the molten metal surface while still achieving substantially complete penetration into the molten metal.

    摘要翻译： 一种有效地将主要气体提供到熔融金属池中的方法，其特别适用于电弧炉。 该方法采用二氧化碳燃料燃烧形成围绕主气流的火焰包围层，该主气体保护主气体在通过炉顶部空间时不会引起环境气体的夹带。 这使得气体在注入到顶部空间中时能够将其原始的力保持在很大程度上，并且因此可以在熔融金属表面的安全距离处注入到炉中，同时仍然实现基本上完全渗透到熔融金属中。