Filter moving device

Patent metadata

Field	Value
Publication number	US-10919715-B2
Application number	US-201716345929-A
Country	US
Kind code	B2
Filing date	Nov 7, 2017
Priority date	Nov 17, 2016
Publication date	Feb 16, 2021
Grant date	Feb 16, 2021

Abstract

A filter moving device is disclosed that is designed to lift and move a filter cartridge stack comprised of individual filter cartridges. The filter cartridge stack, for instance, may comprise a plurality of disk-shaped filter cartridges. The filter moving device is designed to be placed over the stack. The device includes lifting elements that engage the stack for removing the stack from a filter assembly and/or installing the stack in a filter assembly.

First claim

What is claimed is:

1. A filter moving device comprising:
a frame having a first end, a second and opposite end, and defining a height there between, the first end of the frame comprising an open end leading to an interior space within the frame, the open end having a size and the frame having a height such that the open end of the frame can be placed over a filter cartridge stack contained in a filter assembly;
a plurality of lifting elements located on the frame, the lifting elements being movable between an engaging position and a disengaging position, wherein, when in the engaging position, the lifting elements engage a filter cartridge stack located within the interior space of the frame wherein the lifting elements are arranged in groups and wherein the lifting elements in a group are located at different positions around the interior space of the frame at the same height on the frame and wherein there are at least two groups of lifting elements located at different heights on the frame; and
a locking mechanism that locks the lifting elements in the engaging position.

2. A filter moving device as defined in claim 1 , wherein the frame has a cylindrical shape including a plurality of circular frame members attached together by a plurality of vertical frame members.

3. A filter moving device as defined in claim 1 , wherein the device includes from two to ten groups of lifting elements, each group being at a different height on the frame.

4. A filter moving device as defined in claim 3 , wherein the groups of lifting elements are not equally spaced along the height of the frame.

5. A filter moving device as defined in claim 4 , wherein the frame includes a bottom end and a top end and wherein the groups located in the bottom end are spaced closer together than the groups of lifting elements located in the top end.

6. A filter moving device as defined in claim 1 , wherein the lifting elements pivot between the engaging position and the disengaging position.

7. A filter moving device as defined in claim 1 , wherein the lifting elements are arranged in vertical columns on the frame around the interior space of the frame.

8. A filter moving device as defined in claim 7 , wherein the device includes at least three vertical columns of lifting elements.

9. A filter moving device as defined in claim 1 , wherein the lifting elements are attached to vertical rod members, the vertical rod members being pivotally attached to the frame for moving the lifting elements between the engaging position and the disengaging position.

10. A filter moving device as defined in claim 9 , wherein the frame defines a circumference around the interior space and wherein the vertical rod members are equally spaced around the circumference.

11. A filter moving device as defined in claim 9 , wherein the device includes from three to six vertical rod members.

12. A filter moving device as defined in claim 9 , wherein the vertical rod members have a top end and a bottom end and wherein the top end of each vertical rod member includes a cross member that extends across the interior space of the frame, and wherein the locking mechanism engages each cross member of the vertical rod members for locking the lifting elements in the engaging position.

13. A filter moving device as defined in claim 12 , wherein each cross member of the vertical rod members overlap each other when the lifting elements are in the engaging position.

14. A filter moving device as defined in claim 13 , wherein each cross member defines a locking aperture and wherein the locking mechanism comprises a pin that extends through each locking aperture for locking the lifting elements in the engaging position.

15. A filter moving device as defined in claim 12 , wherein each cross member includes a handle for manually pivoting the rod members between the engaging position and the disengaging position.

16. A filter moving device as defined in claim 14 , wherein the pin is tethered to the frame.

17. A filter moving device as defined in claim 1 , wherein the frame is made from a material comprising a metal.

18. A filter moving device as defined in claim 1 , wherein the frame further comprises a connector located at the second end of the frame, the connector being configured to be attached to a lifting mechanism for raising and lowering the filter moving device.

19. A method for removing a filter cartridge stack from a filter assembly comprising;
placing the filter moving device as defined in claim 1 over a filter cartridge stack containing a plurality of filter cartridges, wherein the open end of the frame is placed over the filter cartridge stack while the lifting elements are in the disengaging position;
moving the lifting elements from the disengaging position to the engaging position such that the lifting elements are positioned below certain of the filter cartridges contained in the filter cartridge stack; and
raising the filter moving device which thereby engages and lifts the filter cartridge stack for removal.

Assignees

• Lonza Ag

Inventors

• Sugianto Danny

Classifications

• B01D29/46

  of flat, stacked bodies · CPC title

• B01D25/12

  Filter presses, i.e. of the plate or plate and frame type · CPC title

• B01D25/172 Primary

  Plate spreading means (removal of filter cakes B01D25/32) · CPC title

• B65G59/005

  by using insertions or spacers between the stacked layers · CPC title

• B01D46/406

  of stacked bodies · CPC title