| 摘要 |
PROBLEM TO BE SOLVED: To improve crushing efficiency and to facilitate maintenance by providing a crushing wall formed by casting concrete in a dead stock part in a crushing chamber. SOLUTION: In a casing main body 1a, a dead stock forming plate 30 having a through hole 31 which has a larger diameter than that of a rotor 10 and is centric with the rotor 10 is arranged horizontally, and a crushing chamber R of a U-shaped cross section is formed by a ring-shaped frame 12 in the upper part of a casing 1 which is partitioned into upper and lower parts by the plate 30. Concrete is cast into the frame 12, and a crushing wall 14 slanted in the shape of an inverted triangle is formed from the upper part to the lower part. The cast concrete can be held firmly in the frame 12 by anchor bolts, when the concrete is destroyed/cut by collision with raw stones, and the tips of the anchor bolts are exposed. If the anchor bolts are made of a hard material, the raw stones can be crushed by the collision.
|
