Methods and apparatus for two-stage crushing
    1.
    发明授权
    Methods and apparatus for two-stage crushing 失效
    两级破碎的方法和装置

    公开(公告)号:US4690335A

    公开(公告)日:1987-09-01

    申请号:US837946

    申请日:1986-03-10

    CPC分类号: B02C23/12 B02C25/00

    摘要: A method and apparatus for two-stage crushing of material wherein the material is subjected to crushing first in a constant speed roll mill and then in a second mill. Grit resulting from the crushing is returned to the first mill in a proportion to maintain the filling level of combined fresh material and grit substantially constant even when the quantity of such fresh material changes.

    摘要翻译: 一种二阶段破碎材料的方法和装置,其中材料首先在恒速辊磨机中然后在第二磨机中进行破碎。 由粉碎产生的磨粒以一定比例返回到第一磨机,以保持新鲜材料和砂粒的填充水平基本上恒定,即使这种新鲜材料的数量发生变化。