| 摘要 |
PROBLEM TO BE SOLVED: To provide a vertical crusher which efficiently finely crushes raw material to be crushed.SOLUTION: A vertical crusher 10 has a crushing roller 16 freely rotatable on a rotation table 14 and classification means 30 on the upper side of the crushing roller 16, and blows up raw material crushed between the rotation table 14 and the crushing roller 16 with gas introduced from the lower side of the rotation table 14, separates the raw material into coarse powder and fine powder by means of the classification means 30 and takes out the fine powder as a product. Therein, an internal cone 30e is arranged between the classification means 30 and the rotation table 14, a crushing tray 50 and vibration means 60 for vibrating the crushing tray 50 are provided on a lower end of the internal cone 30e, and the coarse powder or raw material on the crushing tray 50 is degassed and is supplied onto the rotation table 14.SELECTED DRAWING: Figure 2 |
