Claims
- 1. An improved centrifuge comprising:
- a stationary centrifuge housing;
- a rotor assembly including a rotor housing positioned within said centrifuge housing;
- a rotary drive shaft means;
- said rotor assembly mounted to said drive shaft means for rotation therewith;
- a stack of discs mounted within said rotor housing for rotation with said rotor;
- a plurality of nozzles spaced about said rotor housing and communicating between the interior of said rotor and the interior of said centrifuge housings;
- means for introducing a feed into said rotor housing;
- an annular aperture formed between said disc stack and said rotor housing and communicating between the interior of said rotor housing and the interior of said centrifuge housing;
- means positioned within said rotor housing for accelerating said feed to velocities at which relatively higher and lower density components are separated and wherein said higher density components elute from said rotor housing through said spaced nozzles and said lighter density component elutes from said rotor housing through said annular aperture;
- means for drawing said lighter density material from said centrifuge housing;
- means for drawing said higher density material from said centrifuge housing and for reintroducing said higher density material into said centrifuge housing and into said rotor housing;
- accelerating means mounted within said rotor housing for rotation therewith for accelerating said reintroduced heavier density components to velocities for eluting said reycled heavier density components from said rotor housing through said apertures;
- means for diverting the flow direction and causing said heavier density components which are reintroduced into said rotor to self impact; and
- said means for impacting said reintroduced heavier density components comprising a plurality of concave shaped baffles spaced between a plurality of radially extending vanes and adapted for altering the direction of flow of said heavier density components for impact upon itself.
- 2. The apparatus of claim 1 wherin at least two of said concave baffles are spaced at different radial distances from said drive shaft.
- 3. The apparatus of claim 1 wherein said concave baffles are alternatively spaced at different radial distances from said drive shaft.
- 4. An improved centrifuge comprising:
- a stationary centrifuge housing;
- a rotor assembly including a rotor housing positioned within said centrifuge housing;
- a rotary drive shaft means;
- said rotor assembly mounted to said drive shaft means for rotation therewith;
- a stack of discs mounted within said rotor housing for rotation with said rotor;
- a plurality of nozzles spaced about said rotor housing and communicating between the interior of said rotor and the interior of said centrifuge housings;
- means for introducing a feed into said rotor housing;
- an annular aperture formed between said disc stack and said rotor housing and communicating between the interior of said rotor housing and the interior of said centrifuge housing;
- means positioned within said rotor housing for accelerating said feed to velocities at which relatively higher and lower density components are separated and wherein said higher density components elute from said rotor housing through said spaced nozzles and said lighter density component elutes from said rotor housing through said annular aperture;
- means for drawing said lighter density material from said centrifuge housing;
- means for drawing said higher density material from said centrifuge housing and for reintroducing said higher density material into said centrifuge housing and into said rotor housing;
- accelerating means mounted within said rotor housing for rotation therewith for accelerating said reintroduced heavier density components to velocities for eluting said recycled heavier density components from said rotor housing through said apertures;
- means for diverting the flow direction and causing said heavier density components which are reintroduced into said rotor to self impact; and
- said means for impacting said reintroduced heavier density components comprising a plurality of concentrically located arrays of vanes and wherein each array is located at a different radial location, each of said arrays having a plurality of apertures, each of said apertures in an array circumferentially offset with respect to the apertures in an adjacent array.
- 5. The apparatus of claim 4 wherein said means for impacting said reintroduced heavier density components comprises a plurality of radially extending vanes of different lengths.
- 6. The apparatus of claim 4 including a plurality of accelerating vanes of substantially equal lengths extending to a periphery of an accelerating zone.
- 7. The apparatus of claim 6 wherein said vanes of substantially equal length include apertures formed therein along the length of said vanes.
- 8. The apparatus of claim 7 wherein said apertures are offset with respect to the apertures in adjacent vanes.
Parent Case Info
This is a division of application Ser. No. 395,930, filed Sept. 10, 1973.
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
Country |
182,445 |
Jan 1963 |
SW |
Divisions (1)
|
Number |
Date |
Country |
Parent |
395930 |
Sep 1973 |
|