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    • 1. 发明授权
    • Roller mill
    • 辊磨机
    • US4611765A
    • 1986-09-16
    • US709030
    • 1985-02-28
    • Katsuhiko ShimojimaMasaki HamaguchiHiroshi ObanaTakemi AizawaHiroyuki Ninomiya
    • Katsuhiko ShimojimaMasaki HamaguchiHiroshi ObanaTakemi AizawaHiroyuki Ninomiya
    • B02C15/00B02C15/04
    • B02C15/04B02C15/003B02C15/004
    • A roller mill in which raw material fed between the upper surface of a pulverizing table and a pulverizing roller is pulverized by compression therebetween, wherein at least one annular recess coaxial with a roller shaft being formed on the pulverizing roller, thereby attaining reduction of self-excited vibrations of the roller mill and improvement of the pulverization efficiency. Further, in order to enhance these effects, the depth of the recess is set larger than the average grain size of the raw material. Moreover, the gap between the pulverizing table and the pulverizing roller has a wedge-like sectional shape which becomes narrower toward the outside of the pulverizing table, whereby the raw material which has been pulverized by compression between the table and the roller is prevented from escaping in the axial direction of the roller shaft, thereby attaining reduction of the self-excited vibration and improvement of the pulverization efficiency.
    • PCT No.PCT / JP84 / 00334 Sec。 371日期1985年2月28日第 102(e)1985年2月28日PCT PCT。1984年6月28日PCT公布。 公开号WO85 / 00302 日本1985年1月31日。一种辊磨机,其中在粉碎台的上表面和粉碎辊之间供给的原料通过压缩粉碎,其中与粉碎辊上形成的至少一个与辊轴同轴的环形凹部 从而能够减小辊磨机的自激振动,提高粉碎效率。 此外,为了提高这些效果,凹部的深度被设定为大于原料的平均粒径。 此外,粉碎台与粉碎辊之间的间隙具有楔形截面形状,其朝向粉碎台的外侧变窄,从而防止在工作台和辊之间被压缩而粉碎的原料逸出 在辊轴的轴向上,能够实现自激振动的降低和粉碎效率的提高。