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    METHOD FOR IMPROVING CONVEYABILITY OF PULVERIZED COAL
    1.
    发明公开
    METHOD FOR IMPROVING CONVEYABILITY OF PULVERIZED COAL 失效
    VERFAHREN ZUR VERBESSERUNG DES TRANSPORTES VON PULVERISIERTER KOHLE

    公开(公告)号：EP0837143A1

    公开(公告)日：1998-04-22

    申请号：EP96922245.4

    申请日：1996-07-05

    申请人： Kao Corporation

    发明人： ONO, Reiji ,  KIMURA, Yoshio ,  NAKAYA, Takashi ,  MIYAMOTO, Kenichi, Kao Corporation ,  MATOBA, Takashi, Kao Corporation ,  ICHIMOTO, Takehiko, Kao Corporation

    IPC分类号： C21B5/00 ,  F23K3/00

    CPC分类号： F23K3/00 ,  C10L9/10 ,  C21B5/003 ,  F23K1/00

    摘要： A solid compound having a volume average particle diameter of not more than 5 µm, for example, silicon dioxide, aluminum oxide, calcium carbonate, or silicon cabide, is adhered on a dried fine coal obtained from a raw coal having an average HGI of not less than 30 in such a manner that the value of α falls within the following range to improve the transportability of the fine coal: k 1 · r 0.59 ≦ α ≦ 10 (vol %) wherein k 1 = 10 -1.42 and r represents the volume average particle diameter (µm) of the solid compound added. As a result, the fine coal is improved in fluidity and thus can be used as an injection fuel for blast furnaces and a fine coal firing boilers.
    Further, it is possible to prevent hanging and changing within hoppers and clogging of piping.

    摘要翻译： 将体积平均粒径不大于5μm的固体化合物，例如二氧化硅，氧化铝，碳酸钙或硅氯化物，粘附在从平均HGI为 不低于30，使得α的值落在以下范围内以改善细煤的输送性：k1。 r <0.59> ，r表示加入的固体化合物的体积平均粒径（μm）。 结果，细煤的流动性得到改善，因此可以用作高炉的喷射燃料和精细的燃煤锅炉。 此外，可以防止料斗中的悬挂和变化以及管道的堵塞。

    PULVERIZED COAL CARRIABILITY IMPROVER
    2.
    发明公开
    PULVERIZED COAL CARRIABILITY IMPROVER 失效
    MITTEL ZURERHÖHUNGDERTRÄGERKAPAZITÄTVON PULVERISIERTER KOHLE

    公开(公告)号：EP0915175A1

    公开(公告)日：1999-05-12

    申请号：EP97905443.4

    申请日：1997-03-05

    申请人： KAO CORPORATION

    发明人： ONO, Reiji, Kobe Steel Ltd. ,  NAKAYA, Takashi, Kobe Steel Ltd. ,  KIMURA, Yoshio, Kobe Steel Ltd. ,  KAMIJO, Tsunao, Kobe Steel Ltd. ,  MIYAMOTO, Kenichi, Kao Corporation ,  MATOBA, Takashi, Kao Corporation ,  OHASHI, Hidemi, Kao Corporation ,  ICHIMOTO, Takehiko, Kao Corporation

    IPC分类号： C21B5/00 ,  F23K3/00

    CPC分类号： C21B5/003 ,  F23K1/00 ,  F23K3/00 ,  F23K3/02 ,  F23K2201/505

    摘要： The use of pulverized coal as the fuel to be injected into a metallurgical or combustion furnace becomes possible enabled by improving the transportability thereof. Further, a pulverized coal is provided, which is inhibited from bridging or channelling in a hopper, or piping choking.
    A water-soluble inorganic salt having a polar group is made to adhere to pulverized coal which is prepared from raw coal having an average HGI of 30 or above and which is in a dry state at the injection port of a metallurgical or combustion furnace, the inorganic salt being selected from among BaCl 2 , CaCl 2 , Ca(NO 2 ) 2 , Ca(NO 3 ) 2 , Ca(ClO) 2 , K 2 CO 3 , KCl, MgCl 2 , MgSO 4 , NH 4 BF 4 , NH 4 Cl, (NH 4 ) 2 SO 4 , Na 2 CO 3 , NaCl, NaClO 3 , NaNO 2 , NaNO 3 , NaOH, Na 2 S 2 O 3 , NaS 2 O 5 , HNO 3 , H 2 SO 4 , H 2 CO 3 , and HCl.

    摘要翻译： 通过提高其输送性，可以实现将粉煤作为喷射到冶金炉或燃烧炉中的燃料的使用。 此外，提供了一种粉碎煤，其被阻止在料斗中桥接或引导，或管道阻塞。 将具有极性基团的水溶性无机盐与由平均HGI为30以上且在冶金或燃烧炉的注入口处于干燥状态的原煤制成的粉煤附着， 无机盐选自BaCl 2，CaCl 2，Ca（NO 2）2，Ca（NO 3）2，Ca（ClO）2，K 2 CO 3，KCl，MgCl 2，MgSO 4，NH 4 BF 4，NH 4 Cl，（NH 4）2 SO 4，Na 2 CO 3，NaCl， ，NaNO 2，NaNO 3，NaOH，Na 2 S 2 O 3，Na 2 O 5，HNO 3，H 2 SO 4，H 2 CO 3和HCl。