| 摘要 |
<p>733,515. Centrifugal separators. AKTIEBOLAGET SEPARATOR. April 23, 1953 [May 28, 1952], No. 11209/53. Class 23. During the centrifugal separation of mixtures such as a mixture of oil, water, and sludge, the sludge is subjected to mechanical working to free it from adhering liquid. As shown in Fig. 2 the oil mixture is fed to the interior of the separator rotor by a pipe 16 to form layers 22, 23, 24 containing oil, water and sludge respectively. A member 26 carrying paddles 28, 29 and a screw conveyer 20 rotates at a speed different from that of the rotor, the paddles being inclined to one another to work the sludge besides moving it downwardly for discharge by the conveyer through an outlet 19. Water is discharged through outlets 18 and oil is discharged by a skimming device 17. In modifications in which the conveyer extends over the whole length of the rotor, paddles are provided over the cylindrical part, or alternatively the cylindrical part of the conveyer has a less pitch than the conical part. In a further modification (Fig. 1, not shown) the conveyer and outlets 18 are not provided and the paddles do not move the sludge axially, oil and water being separately removed by the skimming device and the rotor being stopped for discharge of sludge. In the construction shown in Fig. 3 the mixture is supplied to the rotor by a pipe 36, oil, water and sludge discharging from outlets 37, 38, 39 respectively. The beaters 28, 29 also direct the sludge towards the outlets 39.</p> |
