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    • 2. 发明授权
    • Method and appatatus for pulverizing material
    • 用于粉碎材料的方法和装置
    • US5114083A
    • 1992-05-19
    • US465178
    • 1990-02-12
    • Iwao IkebuchiYoshitaka IharaHisashi TakeiSyozo YamadaMamoru NakanoAkira Ganse
    • Iwao IkebuchiYoshitaka IharaHisashi TakeiSyozo YamadaMamoru NakanoAkira Ganse
    • B02C17/16
    • B02C17/16
    • The present invention relates to a method and apparatus for pulverizing a material to produce a fine powdery material such as silica powder as a material for a filler for sealing semiconductors. It has a shell and a screw shaft mounted in the shell. A disk having an inverted conical bottom surface is coaxially secured to the bottom of the screw shaft. The disk serves to protect the blade of the screw shaft from wear. Also owing to the inverted conical bottom surface, a centripetal force acts on the screw shaft while in rotation, thus preventing it from running out of true. By providing a plurality of screw shafts in the shell, the fluid in the shell flows in a complicated manner, thus increasing the pulverizing efficiency. A partitioning plate formed with a hole in the upper or lower part thereof may be provided between the adjacent screw shafts to minimize the possibility of shortcircuiting of the material from the inlet of the shell to its outlet. The respective screw shafts may have different revolving speeds, different heights or different screw pitches from one another to create a complicated fluid flow in the shell and thus to improve the pulverizing efficiency.
    • PCT No.PCT / JP89 / 00584 371日期1990年2月12日 102(e)1990年2月12日PCT PCT 1989年6月7日PCT。 出版物WO89 / 11911 日本1989年12月14日。本发明涉及一种粉碎材料以生产细粉末材料如二氧化硅粉末作为密封半导体填料的材料的方法和装置。 它具有外壳和安装在外壳中的螺钉轴。 具有倒锥形底面的盘同轴地固定在螺杆轴的底部。 该盘用于保护螺杆轴的刀片免受磨损。 另外由于倒锥形底面,向心力在旋转时作用在螺杆轴上,从而防止其脱离真实状态。 通过在壳体中设置多个螺杆轴,壳体中的流体以复杂的方式流动,从而提高了粉碎效率。 在其相邻的螺杆轴之间可以设置在其上部或下部形成有孔的分隔板,以最小化材料从壳的入口到其出口的短路的可能性。 相应的螺杆轴可以具有不同的转速,不同的高度或不同的螺距,从而在壳体中产生复杂的流体流动,从而提高粉碎效率。