| 摘要 |
<p>An improved vertical grinding mill is proposed which comprises a shell (10), a vertical screw shaft (11) rotatably mounted in the shell, a classifying means, a drive for the screw shaft, and means for forming a current of fluid for taking fine particles out of the shell. The inlet (21) for the fluid is provided in the center of the bottom of the shell (10) directly under the screw shaft (11). The fluid is uniformly distributed in all directions, carrying up the pulverized fine particles.</p> |
