Separator with inner and outer drum and one or more grippers having a disk portion and a shank portion

Patent metadata

Field	Value
Publication number	US-10780445-B2
Application number	US-201515532683-A
Country	US
Kind code	B2
Filing date	Nov 27, 2015
Priority date	Dec 10, 2014
Publication date	Sep 22, 2020
Grant date	Sep 22, 2020

Abstract

A separator for centrifugally processing a flowable product includes a rotatable drum bounding a centrifuging chamber. The drum has a feeding and removal system having at least one feeding device and one or more removal devices composed of plastic or a plastic composite. An inner drum, composed of plastic or a plastic composite, is arranged in an outer supporting device of the drum. The feeding device and the one or more removal devices extend into the inner drum, do not rotate with the inner drum during operation, and are glued and/or welded to each other in such a way that the feeding device and the one or more removal devices are sealingly connected. The feeding and removal system has one or more grippers as the removal device, each of which one or two or more grippers has a disk segment and a shaft segment.

First claim

The invention claimed is:

1. A separator for centrifugally processing a flowable product, comprising:
a rotatable drum delimiting a centrifugal space,
wherein the rotatable drum has an inflow and outflow system comprising at least one inflow device and one or more outflow devices, which consist of plastic or a plastics composite,
wherein the rotatable drum has an outer drum and an inner drum arranged in the outer drum,
wherein the inner drum consists of plastic or a plastics composite,
wherein the outer drum has an outer drum bottom part and an outer drum top part,
wherein the outer drum only partially surrounds the inner drum and the inner drum protrudes axially from the outer drum,
wherein a means for clarifying the product to be processed in the centrifugal field is arranged in the inner drum,
wherein a separating plate is arranged inside of the inner drum and between an inside of the inner drum and the clarifying means,
wherein the inflow device and the one or more outflow devices
extend into the inner drum,
are configured such that the inflow device and the one or more outflow devices do not rotate with the inner drum during operation, and
are connected, bonded and/or welded to one another in a sealed manner at one or more points,

wherein the inflow and outflow system has as the outflow device one or more grippers, which respectively has/have a disk portion and a shank portion.

2. The separator of claim 1 , wherein the inflow and outflow system of the inflow device has an inflow tube having a center axis that, in a fitted state, is aligned with a rotational axis D of the rotatable drum.

3. The separator of claim 1 , wherein the one or more grippers are comprised of gripper components, which respectively consist of the disk portion and the shank portion, wherein the shank portion is a tube section and the disk portion is an annular disk portion.

4. The separator of claim 3 , wherein the gripper components respectively consist of plastic or plastics composite and are respectively configured in one piece.

5. The separator of claim 3 , wherein the one or more grippers comprises at least two grippers, each having the tube section, wherein the tube sections of the at least two grippers have different diameters, wherein over the gripper components are placed a cover, wherein the cover is a multi-stepped, peripherally closed tube of cylindrical diameter, and wherein steps of the multi-steps respectively axially delimit the tube sections of the at least two grippers.

6. The separator of claim 5 , wherein a first one of the at least two grippers is coupled to an evacuation chamber and the cover delimits the evacuation chamber at least radially on an outside.

7. The separator of claim 5 , wherein the cover includes an annular disk portion that radially extends outward from the cover, wherein the annular disk portion of the cover bears in a flange-like manner against a housing and is detachably fastened to the housing.

8. The separator of claim 5 , wherein the clarifying means is a separating plate assembly and the separating plate is arranged or configured above the separating plate assembly so that at least one gap is formed as an outflow channel between a bottom side of a top part of the inner drum top and a top side of the separating plate.

9. The separator of claim 8 , wherein the separating plate and the top part of the inner drum pass at their axially upper ends into cylindrical portions, wherein at vertically upper ends extend inward from the cylindrical portions to delimit gripper chambers.

10. The separator of claim 8 , wherein at least one axially acting ring seal device is provided between an annular disk portion of the top part of the inner drum and an annular disk portion of the cover.

11. The separator of claim 1 , wherein the outer drum, at a point where the outer drum surrounds the inner drum, is peripherally closed.

12. The separator of claim 11 , wherein the outer drum fully surrounds the inner drum in a peripheral direction.

13. The separator of claim 1 , wherein the inner drum and the outer drum consist of different materials.

14. The separator of claim 13 , wherein the outer drum consists of steel.

15. The separator of claim 1 , wherein the outer drum bottom part and the outer drum top part are fixed to one another by screwing means.

16. The separator of claim 1 , wherein the outer drum bottom part and the outer drum top part are fixed to one another by:
screw bolts,
a locking ring, or
a thread between the outer drum top part and the outer drum bottom part.

17. The separator of claim 1 , wherein the inner drum has an inner drum bottom part and an inner drum top part.

18. The separator of claim 17 , wherein the inner drum bottom part and the inner drum top part are non-detachably connected to one another.

19. The separator of claim 17 , wherein the inner drum bottom part and the inner drum top part are bonded or welded to one another.

20. The separator of claim 17 , wherein the inner drum bottom part and the inner drum top part are mechanically connected to one another.

21. The separator of claim 17 , wherein the outer drum top part is a ring that is open in an axially inward direction so that the inner drum top part protrudes axially from the outer drum top part.

22. The separator of claim 1 , wherein the inner drum and the outer drum are non-positively and/or positively connected to one another in a rotationally secure manner.

23. The separator of claim 1 , wherein the outer drum is driven by a drive motor.

24. The separator of claim 1 , wherein the clarifying means is a plate assembly consisting of a stack of separating plates produced from plastic or a plastics composite.

25. The separator of claim 1 , wherein the outer drum top part, the inner drum top part, the outer drum bottom part, and the inner drum bottom part are conical.

26. The separator of claim 1 , wherein the outer drum bottom part is connected in a rotationally secure manner to a drive spindle.

27. The separator of claim 1 , wherein the inflow and outflow system of the drum is configured solely on the inner drum.

28. The separator of claim 1 , wherein an inner wall of the inner drum does not have any solids discharge openings leading radially out of the inner drum into a space surrounding the inner drum.

29. The separator of claim 1 , wherein all regions of the rotatable drum that come into contact with product during operation consist of plastic or a plastics composite.

30. The separator of claim 1 , wherein an entirety of the inner drum, as well as the inflow and outflow system, are an exchangeable preassembled module made of plastic or a plastics composite.

31. The separator of claim 1 , wherein the rotatable drum is arranged in a housing.

32. The separator of claim 31 , further comprising:
a drive motor directly flange-connected to the housing.

33. The separator of claim 1 , further comprising:
an outflow channel arranged between the inner drum and the separating plate, wherein the outflow channel fluidically couples the centrifugal space with an outlet of the separator.

34. The separator of claim 1 , wherein the outer drum is metallic.

35. The separator of claim 34 , wherein the outer drum consists of metal.

Assignees

• Gea Mechanical Equipment Gmbh

Inventors

• Mackel Wilfried
• Bathelt Thomas
• Quiter Kathrin
• Taetz Frank

Classifications

• B04B1/08 Primary

  of conical shape · CPC title

• B04B7/08 Primary

  Rotary bowls (centrifugal casting machines B22D) · CPC title

• B04B11/00

  Feeding, charging, or discharging bowls (B04B1/00, B04B3/00, B04B7/04 take precedence) · CPC title

• B04B7/00

  Elements of centrifuges (drives B04B9/00; feeding, charging, or discharging appurtenances or devices B04B11/00) · CPC title

• B04B11/02

  Continuous feeding or discharging; Control arrangements therefor · CPC title