A metal surface treatment agent filtering device
The three-stage filtration system solved the clogging problem of the metal surface treatment agent filtration device, achieving a high-efficiency and stable filtration effect, and ensuring the continuous operation and filtration effect of the device.
Patent Information
- Application Number
- CN202521465829.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-09
- Estimated Expiration
- 2035-07-14
AI Technical Summary
Existing metal surface treatment agent filtration devices are prone to spray hole clogging during production, which reduces the filtration speed and affects the continuous working capacity of the device.
A three-stage filtration system is adopted, including a centrifugal protective cylinder, a filter screen cylinder, and a pressurized supply pump. Through the combination of centrifugal force and the pressurized supply pump, coarse filtration, fine filtration, and centrifugal separation are achieved, ensuring the continuity and high efficiency of filtration.
It significantly improves the purity of metal surface treatment agents, avoids clogging, ensures the continuous operation of the device, and ensures the cleanliness and stability of the filtration process through sealed connections and stable support structures.
Smart Images

Figure CN224331717U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal surface treatment agent processing technology, and in particular to a metal surface treatment agent filtration device. Background Technology
[0002] In the existing technology, metal surface treatment agent is a chemical reagent used to prevent rust and remove oil from metals. After the metal surface treatment agent is produced and processed, it needs to be filtered by a filtration device to prevent various impurities from damaging the mechanical equipment used.
[0003] A search revealed Chinese patent application number 202323221791.4, which discloses a metal surface treatment agent filtration device, comprising a base and a filtration section. The filtration section includes: a vertical rod fixed to the top outer wall of the base, with a filter cylinder fixed to the top of the vertical rod; two rotating columns movably connected to the inner wall of a through hole on the outer circumference of the filter cylinder, with a common annular plate fixed between the two rotating columns by a pin, and a filter screen welded to the inner circumference of the annular plate; an inlet pipe welded to the outer circumference of the filter cylinder; an electric telescopic rod fixed to the top outer wall of the base, with a bracket fixed to the output end of the electric telescopic rod by a pin; a rotary motor fixed to the top inner wall of the bracket, with a connecting column connected to the output end of the rotary motor by a coupling, and a scraper fixed to the top of the connecting column by a pin; a cover plate fixed to the top of the filter cylinder; and a connecting pipe embedded in the inner wall of a through hole on the top of the cover plate.
[0004] The above-mentioned patent has the following shortcomings: metal surface treatment agents may contain various solid impurities during the production and processing process. Directly introducing the metal surface treatment agent into the filter tube by spraying may cause the spray holes to become clogged, which is not conducive to the continuous operation of the whole device and reduces the filtration speed of the metal surface treatment agent. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a metal surface treatment agent filtration device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A metal surface treatment agent filtration device, comprising:
[0008] A filter tank body, with a filter tank cover fixedly installed at its top, and a flow guide connection cover fixedly installed at the top of the filter tank cover;
[0009] The drive motor is fixedly installed on the top side of the outer wall of the filter tank.
[0010] Centrifugal protective cylinder, which is installed inside the filter tank and has a filter ball screen fixedly connected to its bottom end;
[0011] Filter screen cylinder one is fixedly installed on the top of the filter tank cover, and filter screen cylinder two is installed inside it;
[0012] The pressure supply pump is fixedly installed on the top of the filter tank cover and connected to the flow guide cover.
[0013] As a further embodiment of this utility model: a driven bevel gear ring is fixedly installed in the middle of the outer wall of the centrifugal protective cylinder, and a driving bevel gear is meshed with the outer wall of the driven bevel gear ring.
[0014] As a further embodiment of this utility model: the top end of the flow guide connecting cover is fixedly connected to an inlet pipe, and the bottom end of the flow guide connecting cover is fixedly connected to a flow guide insert.
[0015] As a further improvement of this utility model: a liquid extraction pipe is fixedly connected to one side of the pressurized supply pump, and a liquid outlet pipe is fixedly installed at the top of the pressurized supply pump.
[0016] As a further improvement of this utility model: a limiting connecting ring is fixedly connected to the middle of the outer wall of the centrifugal protective cylinder, and a matching bearing is provided at the bottom end of the limiting connecting ring.
[0017] As a further embodiment of this utility model: a limiting ring is fixedly connected to the middle of the inner wall of the filter tank, and the mating bearing is fixedly installed on the top of the limiting ring.
[0018] As a further improvement of this utility model: an outlet pipe is fixedly connected to the bottom end of the filter tank, and a flow guide pipe is fixedly installed at the bottom end of the outlet pipe.
[0019] As a further embodiment of this utility model: a fixed mounting cylinder is fixedly connected to one side of the bottom end of the centrifugal protective cylinder, a fixed connecting column is fixedly installed inside the fixed mounting cylinder, and a tank scraper arm is fixedly connected to the bottom end of the fixed connecting column.
[0020] Compared with the prior art, the present invention provides a metal surface treatment agent filtration device, which has the following beneficial effects:
[0021] 1. This metal surface treatment agent filtration device performs continuous fine filtration through built-in filter cylinder one and filter cylinder two. At the same time, it uses a centrifugal protective cylinder to generate centrifugal force, which, combined with the filter ball mesh, achieves primary solid-liquid separation, forming a three-stage purification process (coarse filtration, fine filtration, and centrifugal separation). This significantly improves the purity of the metal surface treatment agent, prevents clogging, and ensures the continuous operation of the entire device.
[0022] 2. This metal surface treatment agent filtration device uses a threaded seal connection between the filter tank cover and the flow guide connection cover, and uses a limiting installation cylinder and a fixing pin to fix the filter assembly to ensure airtightness; the flow guide tube is inserted into the filter screen cylinder to prevent liquid leakage and external contamination, ensuring a clean filtration process.
[0023] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural diagram of the overall assembly of this utility model;
[0025] Figure 2 This is a partial cross-sectional view of the overall assembly of this utility model.
[0026] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0027] In the diagram: 1. Filter tank; 2. Stabilizing support leg; 3. Outlet pipe; 4. Flow guide connecting pipe; 5. Mounting clamp; 6. Drive motor; 7. Filter tank cover; 8. Flow guide connecting cover; 9. Inlet pipe; 10. Pressurized supply pump; 11. Liquid extraction pipe; 12. Liquid outlet pipe; 13. Limiting retaining ring; 14. Matching bearing one; 15. Limiting connecting ring; 16. Centrifugal protection cylinder; 17. Driven conical tooth ring; 18. Filter ball screen; 19. Fixed mounting cylinder; 20. Fixed connecting column; 21. Tank scraper arm; 22. Flow guide insert; 23. Limiting mounting cylinder; 24. Filter screen cylinder one; 25. Filter screen cylinder two. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0029] A metal surface treatment agent filtration device, such as Figures 1 to 3 As shown, it includes: a centrifugal protective cylinder 16 disposed inside the filter tank 1, and a filter tank cover 7 fixedly installed on the top of the filter tank 1. The filter tank cover 7 protects the centrifugal protective cylinder 16 inside the filter tank 1 to ensure that the metal surface treatment agent is not contaminated by the outside.
[0030] A limiting connecting ring 15 is welded to the lower part of the outer wall of the centrifugal protective cylinder 16. A matching bearing 14 is provided at the bottom end of the limiting connecting ring 15. The inner ring of the matching bearing 14 is fixedly sleeved on the outer wall of the centrifugal protective cylinder 16, and its outer ring is fixedly installed on the inner wall of the filter tank 1. A limiting retaining ring 13 is provided at the bottom end of the matching bearing 14. The limiting retaining ring 13 is welded to the inner wall of the filter tank 1 to improve the stability of the centrifugal protective cylinder 16.
[0031] A driven bevel gear ring 17 is fixedly installed in the middle of the outer wall of the centrifugal protective cylinder 16. A mounting sleeve 5 is fixedly installed on the top of one side of the outer wall of the filter tank 1. A drive motor 6 is fixedly installed inside the mounting sleeve 5. The output shaft of the drive motor 6 is located inside the filter tank 1 and a drive bevel gear is fixedly installed thereon. The drive bevel gear meshes with the driven bevel gear ring 17, driving the centrifugal protective cylinder 16 to rotate, thereby generating centrifugal force to centrifuge and filter the metal surface treatment agent.
[0032] A filter ball mesh 18 is welded to the bottom end of the centrifugal protective cylinder 16. Impurities in the metal surface treatment agent are filtered by the filter ball mesh 18, and the clean metal surface treatment agent enters the interior of the filter tank 1. A fixed installation cylinder 19 is welded to one side of the bottom end of the centrifugal protective cylinder 16. A fixed connecting column 20 is fixedly installed inside the fixed installation cylinder 19. A tank scraper arm 21 is welded to the bottom end of the fixed connecting column 20. The tank scraper arm 21 cleans the inner wall of the filter tank 1, reducing the amount of metal surface treatment agent remaining on the inner wall of the filter tank 1.
[0033] The top of the filter tank cover 7 has an internal threaded groove, and the internal thread of the internal threaded groove is used to install the flow guide cover 8. The bottom wall of the internal threaded groove has an installation slot, and the bottom wall of the installation slot has an installation through groove. The bottom wall of the installation through groove is welded with a limiting installation cylinder 23. The outer wall of the limiting installation cylinder 23 is fixedly installed with a matching bearing 2. The outer ring of the matching bearing 2 is fixedly installed with the top of the inner cavity of the centrifugal protective cylinder 16.
[0034] The limiting installation cylinder 23 has a filter screen cylinder 1 24 fixedly installed inside, and a filter screen cylinder 25 is fixedly installed inside the filter screen cylinder 1 24. The filter screen cylinder 1 24 and the filter screen cylinder 25 continuously filter the metal surface treatment agent to improve the purity of the metal surface treatment agent.
[0035] The top of the outer wall of filter cylinder 1 24 is integrally formed with a limiting ring plate 1, and the top of the outer wall of filter cylinder 25 is integrally formed with a limiting ring plate 2. The limiting ring plate 2 is attached to the upper surface of the limiting ring plate 1, and the limiting ring plate 1 is snapped into the inside of the mounting groove. Multiple fixing pins are welded at equal intervals on the bottom wall of the mounting groove. The fixing pins pass through the limiting ring plate 1 and the limiting ring plate 2 to ensure the installation stability of filter cylinder 1 24 and filter cylinder 25.
[0036] The bottom end of the flow guide connection cover 8 is integrally formed with an extrusion boss. The bottom end of the extrusion boss is welded with a flow guide tube 22. The bottom end of the flow guide tube 22 is inserted into the interior of the filter screen tube 25. The extrusion boss presses on the upper surface of the limiting ring plate 2.
[0037] The top of the flow guide cover 8 is integrally formed with an inlet pipe 9. The inner cavity of the inlet pipe 9 is connected to the inner cavity of the flow guide tube 22, which facilitates the metal surface treatment agent to enter the filter screen tube 25.
[0038] A pressurized supply pump 10 is fixedly installed on one side of the top of the filter tank cover 7. A liquid extraction pipe 11 is fixedly connected to one side of the pressurized supply pump 10, and an outlet pipe 12 is fixedly installed at the top of the pressurized supply pump 10. The top of the inlet pipe 9 is fixedly installed at the outlet pipe 12. The pressurized supply pump 10 draws metal surface treatment agent and quickly introduces it into the filter screen cylinder 25. The pressurized supply pump 10 increases the pressure of the metal surface treatment agent inside the filter screen cylinder 25, thereby increasing the filtration speed of the metal surface treatment agent by the filter screen cylinder 1 24 and the filter screen cylinder 25.
[0039] The bottom of the filter tank 1 is fixedly connected to an outlet pipe 3, and the bottom of the outlet pipe 3 is fixedly installed with a flow guide pipe 4. The flow guide pipe 4 quickly introduces the filtered metal surface treatment agent into the storage device for storage.
[0040] Multiple stable support legs 2 are welded at equal intervals to the bottom of the filter tank 1. The bottom of the stable support legs 2 is inclined away from the axis of the filter tank 1, and the bottom of the stable support legs 2 is integrally formed with a support seat to increase the contact area with the ground, which fully improves the stability of the whole device during use and ensures that the whole device can continuously filter the metal surface treatment agent.
[0041] Working principle:
[0042] Please refer to Figures 1 to 3 Assemble the device as shown in the figure;
[0043] When using this device, first connect the liquid extraction pipe 11 to the production and storage tank of the metal surface treatment agent (used to store the produced and unfiltered metal surface treatment agent), then connect the flow guiding pipe 4 to the storage device of the filtered metal surface treatment agent; then start the drive motor 6, which drives the centrifugal protective cylinder 16 to rotate at a constant speed through the meshing of the drive bevel gear and the driven bevel gear ring 17. The centrifugal protective cylinder 16 drives the filter ball screen 18 and the tank scraper arm 21 to rotate synchronously; then start the pressurized supply pump 10 to quickly introduce the unfiltered metal surface treatment agent into the filter screen cylinder 25. After preliminary filtration, it enters the filter screen cylinder 24 for secondary filtration. After secondary filtration, the metal surface treatment agent enters the filter ball screen 18 for centrifugal filtration. The metal surface treatment agent that has completed three filtrations enters the flow guiding pipe 4.
[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A metal surface treatment agent filtration device, characterized in that, include: A filter tank (1) is fixedly installed with a filter tank cover (7) at its top, and a flow guide cover (8) is fixedly installed at the top of the filter tank cover (7). The drive motor (6) is fixedly installed on the top of one side of the outer wall of the filter tank (1); Centrifugal protective cylinder (16) is installed inside the filter tank (1) and a filter ball screen (18) is fixedly connected to its bottom end; Filter cylinder one (24) is fixedly installed on the top of the filter tank cover (7), and filter cylinder two (25) is installed inside it; A pressurized supply pump (10) is fixedly mounted on the top of the filter tank cover (7) and connected to the flow guide cover (8).
2. The metal surface treatment agent filtration device according to claim 1, characterized in that: A driven bevel gear ring (17) is fixedly installed in the middle of the outer wall of the centrifugal protective cylinder (16), and a driving bevel gear is meshed with the outer wall of the driven bevel gear ring (17).
3. The metal surface treatment agent filtration device according to claim 1, characterized in that: The top end of the flow guide connecting cover (8) is fixedly connected to the inlet pipe (9), and the bottom end of the flow guide connecting cover (8) is fixedly connected to the flow guide insert (22).
4. The metal surface treatment agent filtration device according to claim 1, characterized in that: A liquid extraction pipe (11) is fixedly connected to one side of the pressurized supply pump (10), and a liquid outlet pipe (12) is fixedly installed at the top of the pressurized supply pump (10).
5. A metal surface treatment agent filtration device according to claim 1, characterized in that: A limiting connecting ring (15) is fixedly connected to the middle of the outer wall of the centrifugal protective cylinder (16), and a matching bearing (14) is provided at the bottom end of the limiting connecting ring (15).
6. A metal surface treatment agent filtration device according to claim 5, characterized in that: A limiting ring (13) is fixedly connected to the middle of the inner wall of the filter tank (1), and the first bearing (14) is fixedly installed on the top of the limiting ring (13).
7. A metal surface treatment agent filtration device according to claim 1, characterized in that: The bottom end of the filter tank (1) is fixedly connected to an outlet pipe (3), and the bottom end of the outlet pipe (3) is fixedly installed with a flow guide pipe (4).
8. A metal surface treatment agent filtration device according to claim 1, characterized in that: A fixed mounting cylinder (19) is fixedly connected to one side of the bottom end of the centrifugal protective cylinder (16). A fixed connecting column (20) is fixedly installed inside the fixed mounting cylinder (19). A tank scraper arm (21) is fixedly connected to the bottom end of the fixed connecting column (20).
Citation Information
Patent Citations
Metal surface treating agent filtering device
CN221579892U
