| 摘要 |
<p>PROBLEM TO BE SOLVED: To execute efficient crushing, by reducing a quantity of a staying raw material being not crushed efficiently, in a vertical crusher.SOLUTION: The vertical crusher of a type has a center cone under a fixed type classification blade, and is arranged so that an outer peripheral side part of the classification blade is positioned inside a center cone upper part, and a clearance is formed thereby between the outer peripheral side part of the classification blade and the center cone upper part, and is constituted so that a raw material of falling by colliding with the outer peripheral side part of the classification blade, falls in the center cone via the clearance. The present invention can reduce the possibility that the raw material of falling by colliding is blown up still in a state of not falling on a rotary table by gas of rising by slipping out of a space between the center cone and an upper casing by the above-mentioned constitution. As a result of it, a rate of the raw material staying in a machine can be reduced more than a conventional technology, and the efficient crushing becomes possible by reducing a pressure loss.</p> |
