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    Process for producing an aqueous high concentration coal slurry
    8.
    发明授权
    Process for producing an aqueous high concentration coal slurry 失效
    生产高浓度高浓度煤浆的方法

    公开(公告)号：US5599356A

    公开(公告)日：1997-02-04

    申请号：US284085

    申请日：1994-08-01

    申请人： Noboru Hashimoto ,  Koichi Ito ,  Shinichi Tokuda ,  Osamu Matsumoto

    发明人： Noboru Hashimoto ,  Koichi Ito ,  Shinichi Tokuda ,  Osamu Matsumoto

    IPC分类号： C10L1/32 ,  B02C17/00 ,  B65G53/30

    CPC分类号： C10L1/326

    摘要： An aqueous high concentration coal slurry having a high dispersion stability is produced by a process in which a coal material is wet pulverized at a low concentration in a dispersing agent-free aqueous medium, the resultant coal slurry is hydrated, the dehydrated coal cakes are mixed with an aqueous dispersing additive solution to provide an aqueous coal slurry (A), a portion (B) of the slurry (A) is further pulverized, and the pulverized portion (B) is mixed with the remaining portion (D) of the slurry (A), or by a process in which a coal material is pulverized in an aqueous dispersing agent solution to provide a slurry moiety (E), separately a cake moiety (E) is provided, the slurry moiety (E) is mixed with the cake moiety (E) the above-mentioned process being carried out to an extent such that the resultant coal slurry contains coal particles having a size of 5 .mu.m or less in a content of 15% by weight or more and coal particles having a size of 500 .mu.m or less at a particle size distribution in which a variation coefficient C in size of the coal particles is 0.3 to 0.75.

    摘要翻译： 通过以下方法制造具有高分散稳定性的高浓度的高浓度煤浆，其中在不含分散剂的水性介质中将煤料以低浓度湿粉碎，所得煤浆水合，脱水的煤饼混合 用水分散添加剂溶液提供含水煤浆（A），将浆料（A）的一部分（B）进一步粉碎，并将粉碎部分（B）与浆料的剩余部分（D）混合 （A），或通过分散在水分散剂溶液中粉碎煤料以提供浆料部分（E）的方法，分别提供饼块部分（E），将浆料部分（E）与 滤饼部分（E），上述方法进行到使得所得煤浆含有15重量％以上的尺寸为5μm以下的煤粒子，并且具有尺寸的煤粒子 为500μm以下 其中煤粒子尺寸的变化系数C为0.3〜0.75的分布。