Claims
- 1. A machine construction method comprising:
- providing a centrifuge having a bowl and a conveyor inside said bowl for moving cake solids along a cake flow path to a cake discharge opening;
- providing a baffle in the form of a plate having a pair of opposed major surfaces, at least one of said major surfaces having an at least partially concave profile; and
- disposing said baffle in said centrifuge so that said one of said surfaces of said baffle faces in an upstream direction relative to said cake flow path in said centrifuge and so that another of said surfaces faces in a downstream direction relative to said cake flow path.
- 2. The method defined in claim 1 wherein said another of said surfaces also has a concave profile.
- 3. The method defined in claim 1 wherein said baffle is provided with an extension oriented at a substantial angle to said plate, said extension being provided with an at least partially concave profile on a side contiguous with said one of said surfaces, the disposing of said baffle in said centrifuge including disposing said extension adjacent to a wrap or blade of said conveyor.
- 4. The method defined in claim 1 wherein said profile is substantially cylindrical.
- 5. A machine construction method comprising:
- providing a decanter type centrifuge having a bowl and a conveyor inside said bowl for moving cake solids along a cake flow path to a cake discharge opening, said conveyor having a plurality of adjacent blade flights;
- providing a baffle or churning vane in the form of a plate having a pair of opposed major faces, at least one of said major faces having an at least partially concave profile; and
- disposing said baffle or churning vane between preselected adjacent blade flights of the conveyor so that said baffle or churning vane is oriented substantially perpendicularly to a cake flow path extending to a cake discharge opening in said bowl and so that said one of said faces faces in an upstream direction relative to said cake flow path and away from said cake discharge opening and the other of said faces faces in a downstream direction relative to said cake flow path and towards said cake discharge opening.
- 6. The method defined in claim 5 wherein said other of said faces also has a concave profile.
- 7. The method defined in claim 5 wherein said baffle or churning vane is provided with an extension oriented at a substantial angle to said plate, said extension being provided with an at least partially concave profile on a side contiguous with said one of said faces, the disposing of said baffle or churning vane between said preselected adjacent blade flights including disposing said extension along one of said preselected adjacent blade flights.
- 8. The baffle defined in claim 5 wherein said profile is substantially cylindrical.
- 9. A machine construction method comprising:
- providing a decanter type centrifuge having a bowl with an inner surface and a conveyor inside said bowl for moving cake solids along a cake flow path to a cake discharge opening, said conveyor having a plurality of adjacent blade flights;
- providing a baffle or churning vane in the form of a plate having a pair of opposed major faces, at least one of said major faces having an at least partially concave profile; and
- disposing said baffle or churning vane between preselected adjacent blade flights of the conveyor so that said one of said faces faces away from said cake discharge opening and so that said baffle or churning vane is spaced, from said inner surface, a distance sufficiently large to permit passage of a cake layer between said baffle or churning vane and said bowl along said cake flow path to said cake discharge opening.
- 10. The method defined in claim 9 wherein said plate has another major surface opposed to said concave major surface, said another major surface also having a concave profile.
- 11. The method defined in claim 9 wherein said baffle or churning vane is provided with an extension oriented at a substantial angle to said plate, said extension being provided with a concave profile on a side contiguous with said concave major surface, the disposing of said baffle or churning vane between said preselected adjacent blade flights including disposing said extension along one of said preselected adjacent blade flights.
- 12. The baffle defined in claim 9 wherein said profile is substantially cylindrical.
- 13. A machine construction method comprising:
- providing a decanter type centrifuge having a bowl with an inner surface and a conveyor inside said bowl for moving cake solids along a cake flow path to a cake discharge opening, said conveyor having a plurality of adjacent blade flights;
- providing a baffle or churning vane in the form of a plate having a pair of opposed major faces, at least one of said major faces having an at least partially concave profile; and
- disposing said baffle or churning vane between preselected adjacent blade flights of the conveyor so that said baffle or churning vane is oriented at least partially perpendicularly to said adjacent blade flights.
CROSS-REFERENCE TO RELATED APPLICATION
This is a division of application Ser. No. 09/007,236 filed Jan. 14, 1998 now U.S. Pat. No. 5,948,256, which is a continuation-in-part of application Ser. No. 08/916,660 filed Aug. 22, 1997 now U.S. Pat. No. 5,958,235.
US Referenced Citations (7)
Foreign Referenced Citations (4)
Number |
Date |
Country |
0 787 532 A1 |
Aug 1997 |
EPX |
2 660 580 |
Oct 1991 |
FRX |
3810565 C1 |
Mar 1988 |
DEX |
WO 9600129 |
Jan 1996 |
WOX |
Divisions (1)
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Number |
Date |
Country |
Parent |
007236 |
Jan 1998 |
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Continuation in Parts (1)
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Number |
Date |
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Parent |
916660 |
Aug 1997 |
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