| 摘要 |
A vertical shaft impact crusher comprises a rotor for accelerating a first flow of material to be crushed, a first feed means 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 means for feeding a second flow of material towards a distributing wall section (24) of said housing and further into the path of the accelerated first flow of material. A cavity ring separates said impact wall section (26) from said distributing wall section (24). The cavity ring comprises at least two ring segments (52). Supports (44, 46) are provided for supporting the ring segments (52). A locking device (80) is provided for pressing the ring segments (52) towards at least one of said supports (44, 46). |
