| 摘要 |
<p>A cylindrical drum is mounted for rotation about a vertical axis within a housing. A driven rotor is coaxially mounted within the drum. A fluid containing solid particles is introduced into the rotating rotor which throws the fluid toward the drum, causing rotation of the drum. As the drum rotates the particles collect on the drum side wall. An inwardly extending annular baffle prevents fluid from escaping from the bottom of the drum during normal operation, and clarified fluid is discharged through ports in the top cover of the drum. To purge the drum of accumulated particles, the drum is braked while the rotor continues to rotate. There is substantial clearance between the rotor and the drum. With the drum braked, the rotor creates a washing or eroding action in the fluid which breaks the particles free from the drum side wall, allowing them to be resuspended in the fluid. Fluid with resuspended particles flows over the baffle and out the bottom of the drum.</p> |
