| 摘要 |
<p>594891 Disclosed is a vertical shaft impact crusher (1), having a cavity ring (28), for crushing material. The crusher comprises a rotor (2) for accelerating a first flow of material (see M1, figure 1) to be crushed, a first feed element for feeding the first flow of material to the rotor, a housing comprising a circumferential impact wall section (26) against which the accelerated first flow of material may be crushed, and a second feed element for feeding a second flow (see M2, figure 1) of material to be crushed towards a distributing wall section of said housing and further into the path of the accelerated first flow of material. The cavity ring (28) separates the impact wall section from the distributing wall section. The cavity ring comprises at least two separate ring segments (see 50 & 52, figure 6), with at least one of the ring segments being a wear part. At least two supports (44, 46) are provided for supporting the two ring segments and a locking device is provided for pressing at least the wear part towards at least one of the supports. The provision of separate cavity ring segments provides the advantage of only requiring replacement of one of the segments, as opposed to the entire ring, when worn or damaged, thereby reducing maintenance time and the cost of spare parts.</p> |
