A structure to improve oil leakage in plate filter presses

By setting oil collecting ring grooves on the overlapping end faces of the plate filter stack and connecting them with a negative pressure suction device, the problem of oil leakage in the stack was solved, and the effective collection of lubricating oil and improved sealing were achieved.

CN224270362UActive Publication Date: 2026-05-26CHINALCO RUIMIN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINALCO RUIMIN CO LTD
Filing Date
2025-06-30
Publication Date
2026-05-26

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Abstract

This utility model relates to a structure for improving oil leakage in a plate filter press, comprising a plate filter press, wherein oil collecting ring grooves are provided on the overlapping end faces of the upper and lower adjacent stacked blocks of the plate filter press, and the oil collecting ring grooves are connected to a main pipe via hoses, and a negative pressure suction device is provided on the main pipe. This structure for improving oil leakage in a plate filter press, by providing oil collecting ring grooves on the overlapping end faces of the upper and lower adjacent stacked blocks, ensures that lubricating oil leaking outward along the joints between the stacked blocks first reaches the oil collecting ring grooves, and is then suctioned into a collection container by negative pressure via hoses and the main pipe, preventing leakage to the outside.
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Description

Technical Field

[0001] This utility model relates to a structure for improving oil leakage in plate filter presses. Background Technology

[0002] Plate filters in aluminum cold rolling mills are used to filter aluminum powder and impurities from process lubricating oil. The filter stack is the core component of the plate filter. As the filtration capacity of the plate filter increases, the amount of aluminum powder, impurities, and other particles trapped by the filter cloth (including filter soil) in the filter stack also increases. At this time, the pressure between the filter stacks will increase, and oil leakage is likely to occur at the joints between the filter stacks.

[0003] To address the above technical issues, this paper proposes a structure to improve oil leakage in plate filter presses. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a structure that improves the oil leakage of the plate filter.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a structure for improving oil leakage in a plate filter, including a plate filter, wherein oil collecting ring grooves are provided on the overlapping end faces of the upper and lower adjacent stacked blocks of the plate filter, the oil collecting ring grooves are all connected to a main pipe via hoses, and a negative pressure suction device is provided on the main pipe.

[0006] Preferably, the oil collecting ring grooves are all disposed on the top end face of the stacked block.

[0007] Preferably, the negative pressure suction device uses a jet pump.

[0008] Preferably, each of the stacked blocks is further provided with a filtered oil cavity on its top end face. The filtered oil cavities are all located within the ring area of ​​the oil collecting groove, and each filtered oil cavity is connected to the filtered oil outlet pipe.

[0009] Preferably, each of the stacked blocks is further provided with a pre-filter oil chamber on its bottom end face, and each pre-filter oil chamber is connected to the pre-filter oil pipe.

[0010] Preferably, the pre-filtration oil chamber of the upper stacked block of the plate filter corresponds vertically to the post-filtration oil chamber of the lower stacked block, and filter cloth is pressed on the overlapping end face of the upper and lower adjacent stacked blocks.

[0011] Preferably, the outer diameter of the filter cloth is larger than the outer diameter of the laminated block.

[0012] Preferably, the main pipe is connected to the collection container.

[0013] Compared with the prior art, the present invention has the following beneficial effects: the structure for improving the oil leakage of the plate filter stack has oil collection ring grooves on the overlapping end faces of the upper and lower adjacent stack blocks. The lubricating oil leaking outward along the connection between the stacks will first reach the oil collection ring grooves and be drawn into the collection container by negative pressure through the hose and the main pipe, and will not leak to the outside.

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model.

[0016] In the diagram: 1. Stacked block; 2. Oil collecting ring groove; 3. Hose; 4. Main pipe; 5. Oil chamber after filtration; 6. Oil outlet pipe after filtration; 7. Oil chamber before filtration; 8. Oil inlet pipe before filtration; 9. Filter cloth. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0019] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0020] like Figure 1 As shown, this embodiment provides a structure to improve oil leakage in a plate filter, including a plate filter. On the overlapping end face of the upper and lower adjacent stacked blocks 1 of the plate filter, oil collecting ring grooves 2 are provided. The oil collecting ring grooves are all connected to a main pipe 4 via hoses 3. A negative pressure suction device is provided on the main pipe.

[0021] In this embodiment of the invention, the oil collecting ring grooves are all disposed on the top end face of the stacked block.

[0022] In this embodiment of the invention, the negative pressure suction device uses a jet pump.

[0023] In this embodiment of the present invention, each of the stacked blocks is provided with a filtered oil cavity 5 on its top end face. The filtered oil cavities are all located within the ring area of ​​the oil collecting annular groove, and each filtered oil cavity is connected to a filtered oil outlet pipe 6.

[0024] In this embodiment of the present invention, each of the stacked blocks is provided with a pre-filter oil chamber 7 on its bottom end face, and each pre-filter oil chamber is connected to the pre-filter oil pipe 8.

[0025] In this embodiment of the utility model, the pre-filtration oil chamber of the upper stacked block of the plate filter corresponds to the post-filtration oil chamber of the lower stacked block, and filter cloth 9 is pressed on the overlapping end face of the upper and lower adjacent stacked blocks.

[0026] In this embodiment of the invention, the outer diameter of the filter cloth is larger than the outer diameter of the laminated block.

[0027] In this embodiment of the invention, the main pipe is connected to the collection container.

[0028] In this embodiment of the utility model, the structure for improving oil leakage of the plate filter stack is provided with oil collection ring grooves on the overlapping end faces of the upper and lower adjacent stack blocks. The lubricating oil leaking outward along the connection between the stacks will first reach the oil collection ring grooves and be drawn into the collection container by negative pressure through the hose and the main pipe, and will not leak to the outside.

[0029] Plate filters are existing technology, and the compression method between two adjacent stacked blocks is also existing technology, which will not be elaborated here.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A structure for improving oil leakage of a plate filter stack, comprising a plate filter, characterized by: The upper and lower adjacent laminated blocks of the plate filter are provided with oil collecting ring grooves on the overlapping end surfaces, the oil collecting ring grooves are connected to a main pipe through a hose, and the main pipe is provided with a negative pressure suction device.

2. The structure for improving the oil leakage of a plate filter stack according to claim 1, characterized by: The oil collecting ring grooves are arranged on the top end surfaces of the laminated blocks.

3. The structure for improving the oil leakage of a plate filter stack according to claim 1, characterized in that: The negative pressure suction device is a jet pump.

4. The structure for improving the oil leakage of a plate filter stack according to claim 1, characterized in that: The top end surfaces of the laminated blocks are further provided with filtered oil cavities, the filtered oil cavities are located in the inner region of the ring of the oil collecting ring grooves, and the filtered oil cavities are connected to filtered oil outlet pipes.

5. The structure for improving the oil leakage of a plate filter stack according to claim 4, characterized in that: The bottom end surfaces of the laminated blocks are further provided with unfiltered oil cavities, and the unfiltered oil cavities are connected to unfiltered oil inlet pipes.

6. The structure for improving the oil leakage of a plate filter stack according to claim 5, characterized in that: The unfiltered oil cavities of the upper laminated blocks of the plate filter correspond to the filtered oil cavities of the lower laminated blocks, and the overlapping end surfaces of the upper and lower adjacent laminated blocks are provided with filter cloths.

7. The structure for improving the oil leakage of a plate filter stack according to claim 6, characterized by: The outer diameter of the filter cloth is greater than the outer diameter of the laminated blocks.

8. The structure for improving the oil leakage of a plate filter stack according to claim 1, characterized by: The main pipe is connected to a collection container.