Multistage filtering circulating system for surface treatment

By using a multi-stage filtration and circulation system, combined with a mesh conveyor belt and electromagnet design, the problems of low efficiency and difficulty in impurity recovery in traditional filtration systems are solved, achieving high-efficiency liquid cleanliness and resource recycling, and reducing production costs and environmental pollution.

CN121929792APending Publication Date: 2026-04-28SUZHOU ONTAP PRECISION ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU ONTAP PRECISION ELECTRONICS CO LTD
Filing Date
2025-12-10
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional single-stage filtration systems are inefficient, the filter media is prone to clogging, and impurities are difficult to recover. They cannot meet the liquid cleanliness requirements of high-precision surface treatment processes and pose a risk of secondary contamination.

Method used

A multi-stage filtration and circulation system is adopted, which uses a combination of mesh conveyor belt and electromagnet to achieve multi-stage filtration of liquid and automatic recovery of impurities. Large impurities are initially filtered by the conveyor belt, ferromagnetic impurities are adsorbed by the electromagnet, and impurities are recovered by the scraper, thus realizing the recycling of liquid.

Benefits of technology

It improves liquid cleanliness, extends filter media life, reduces production costs, reduces secondary pollution, and meets the requirements of sustainable development.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of multi-stage filtration, in particular to a multi-stage filtration circulating system for surface treatment, which comprises a shell, a plurality of driving rollers are rotatably arranged on the inner side of the shell, a net-shaped conveyor belt is attached to the surfaces of the driving rollers, the net-shaped conveyor belt is obliquely arranged, and a plurality of separation ribs are arranged on the surface of the net-shaped conveyor belt. A filtering bin is arranged at the position, corresponding to the lower side of the net-shaped conveying belt, of the inner side of the shell, a barrel is rotationally installed in the filtering bin through a rotating shaft, the rotating shaft is driven by a motor, a plurality of electromagnets are arranged on the surface of the barrel at intervals, and power connection mechanisms are arranged on the two sides of the barrel. Comprising fine particles and ferromagnetic impurities, the cleanliness of the liquid is improved, and the requirement of a high-precision surface treatment process is met.
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Description

Technical Field

[0001] This invention relates to the field of multi-stage filtration technology, specifically a multi-stage filtration circulation system for surface treatment. Background Technology

[0002] In modern industrial production, surface treatment processes (such as electroplating, spraying, and cleaning) are crucial for improving product quality and performance. During these processes, the cleanliness of the liquids (such as electroplating solutions and cleaning solutions) has a vital impact on the quality of the final product. For example, in electroplating, impurities in the plating solution can lead to uneven plating, spots, or defects, affecting the product's appearance and performance. In cleaning processes, unclean cleaning solutions cannot effectively remove dirt from the workpiece surface and may even introduce new impurities, affecting subsequent processes.

[0003] Low efficiency of single-stage filtration: Traditional filtration systems mostly use single-stage filtration, filtering liquids through simple filter screens or filter cartridges. While this method can remove some larger impurities, it is less effective at filtering fine particles and ferromagnetic impurities, making it difficult to meet the liquid cleanliness requirements of high-precision surface treatment processes.

[0004] Filter media is prone to clogging: During prolonged use, filter media (such as filter screens and filter cartridges) are easily clogged by impurities, leading to decreased filtration efficiency and reduced liquid flow. To maintain filtration effectiveness, frequent replacement of the filter media is necessary, which not only increases production costs but also affects production efficiency.

[0005] Impurity recovery is difficult: Impurities generated during the filtration process in traditional filtration systems are often difficult to recover effectively, and some impurities may re-enter the liquid, causing secondary pollution. In addition, improper disposal of waste impurities can also pollute the environment.

[0006] Therefore, a multi-stage filtration circulation system for surface treatment is needed to improve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide a multi-stage filtration circulation system for surface treatment to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A multi-stage filtration circulation system for surface treatment includes a housing. A plurality of drive rollers are rotatably mounted inside the housing. A mesh conveyor belt is attached to the surface of each drive roller. The mesh conveyor belt is inclined and has a plurality of separating ridges on its surface. A filter chamber is located inside the housing corresponding to the lower side of the mesh conveyor belt. A cylindrical body is rotatably mounted inside the filter chamber via a rotating shaft driven by a motor. A plurality of electromagnets are spaced on the surface of the cylindrical body, and electrical connection mechanisms are located on both sides of the cylindrical body.

[0010] As a preferred embodiment of the present invention, a liquid inlet is provided on one side of the outer shell corresponding to the upper end of the mesh conveyor belt, and a liquid outlet is provided on one side of the outer shell corresponding to the lower side of the filter chamber.

[0011] As a preferred embodiment of the present invention, a recovery chamber is provided on one side of the filter chamber, the surface of the recovery chamber is provided with a through groove, a scraper is fixedly provided on the surface of the through groove, and the scraper is fitted with an electromagnet.

[0012] As a preferred embodiment of the present invention, the power connection mechanism includes a wire, a clamp, a power connection slider, an arc-shaped power connection slide rail, and a mounting boss.

[0013] As a preferred embodiment of the present invention, the mounting boss is fixedly installed at the center of both sides of the cylinder, and a plurality of electrical contact sliders are fixedly arranged in a ring on one side of the mounting boss.

[0014] As a preferred embodiment of the present invention, an arc-shaped power-connecting slide rail is fixedly provided on the inner side of the outer shell, and the power-connecting slider is slidably disposed on the surface of the arc-shaped power-connecting slide rail, with the notch of the arc-shaped power-connecting slide rail oriented in the direction corresponding to the scraper direction.

[0015] In a preferred embodiment of the present invention, the electric contact slider is connected to the electromagnet via a wire, and the surface of the wire is fixedly mounted by a clamp.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Multi-stage filtration: Through multi-stage filtration, various impurities in the liquid can be effectively removed, including fine particles and ferromagnetic impurities, improving the cleanliness of the liquid and meeting the requirements of high-precision surface treatment processes.

[0018] 2. Automatic impurity recovery: It can automatically recover impurities generated during the filtration process, preventing impurities from re-entering the liquid, reducing secondary pollution, lowering impurity treatment costs, and improving the system's environmental performance.

[0019] 3. Anti-clogging filter media: Adopting advanced filtration technology and structural design, it prevents filter media from clogging, extends the service life of filter media, reduces production costs, and improves production efficiency.

[0020] 4. Liquid recycling: Realizing the recycling of liquids reduces liquid waste, lowers production costs, and reduces environmental pollution, which meets the requirements of sustainable development. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall internal three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the power connection mechanism of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall internal structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0025] In the diagram: 1. Mesh conveyor belt; 2. Separating ridges; 3. Drive roller; 4. Electromagnet; 5. Cylinder; 6. Wire; 7. Power connection mechanism; 8. Filter chamber; 9. Scraper; 10. Through groove; 11. Outer shell; 12. Recycling chamber; 13. Clamp; 14. Power connection slider; 15. Arc-shaped power connection slide rail; 16. Mounting boss; 17. Rotating shaft; 18. Liquid inlet; 19. Liquid outlet; 20. Motor. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] To facilitate understanding of the present invention, a more complete description will be given below with reference to relevant descriptions. Several embodiments of the invention are provided. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0028] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0029] Unless otherwise defined, 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 invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figure 1-4 The present invention provides a technical solution:

[0031] A multi-stage filtration circulation system for surface treatment includes a housing 11. A plurality of drive rollers 3 are rotatably arranged inside the housing 11. A mesh conveyor belt 1 is attached to the surface of the drive rollers 3. The mesh conveyor belt 1 is inclined and has a plurality of dividing protrusions 2 on its surface. A filter chamber 8 is provided inside the housing 11 corresponding to the lower side of the mesh conveyor belt 1. A cylinder 5 is rotatably installed in the filter chamber 8 via a rotating shaft 17. The rotating shaft 17 is driven by a motor 20. A plurality of electromagnets 4 are arranged on the surface of the cylinder 5, and a power connection mechanism 7 is provided on both sides of the cylinder 5.

[0032] As an example of the present invention, a liquid inlet 18 is provided on one side of the outer shell 11 corresponding to the upper end of the mesh conveyor belt 1, and a liquid outlet 19 is provided on one side of the outer shell 11 corresponding to the lower side of the filter chamber 8.

[0033] As an example of the present invention, a recovery chamber 12 is provided on one side of the filter chamber 8. A through groove 10 is provided on the surface of the recovery chamber 12. A scraper 9 is fixedly provided on the surface of the through groove 10. The scraper 9 is attached to the electromagnet 4.

[0034] As an example of the present invention, the power connection mechanism 7 includes a wire 6, a clamp 13, a power connection slider 14, an arc-shaped power connection slide rail 15, and a mounting boss 16.

[0035] As an example of the present invention, the mounting boss 16 is fixedly installed at the center of both sides of the cylinder 5, and a plurality of electrical sliders 14 are fixedly arranged in a ring on one side of the mounting boss 16.

[0036] As an example of the present invention, an arc-shaped power-connecting slide rail 15 is fixedly provided on the inner side of the outer shell 11, and a power-connecting slider 14 is slidably disposed on the surface of the arc-shaped power-connecting slide rail 15. The notch of the arc-shaped power-connecting slide rail 15 is arranged in the direction corresponding to the direction of the scraper 9.

[0037] As an example of the present invention, the electric contact slider 14 is connected to the electromagnet 4 via the wire 6, and the surface of the wire 6 is fixedly mounted by the clamp 13.

[0038] Working principle: When using,

[0039] Liquid input and preliminary filtration

[0040] Liquid input: Liquid flows in from the liquid inlet 18 on one side surface of the housing 11 and falls onto the upper end of the inclined mesh conveyor belt 1;

[0041] Preliminary filtration: The dividing ridges 2 on the surface of the mesh conveyor belt 1 play a certain preliminary filtration role, intercepting some larger impurities; the liquid flows downward along the conveyor belt under the inclined guidance of the mesh conveyor belt 1.

[0042] Filter chamber filtration

[0043] Liquid flows into the filter chamber: After preliminary filtration, the liquid flows into the filter chamber 8 inside the outer shell 11;

[0044] Electromagnets adsorb impurities: The cylinder 5 inside the filter chamber 8 is driven to rotate by the motor 20 through the rotating shaft 17; a number of electromagnets 4 are arranged on the surface of the cylinder 5. When the electromagnets 4 are energized, they can generate a magnetic field to adsorb ferromagnetic impurities in the liquid; as the cylinder 5 rotates, the electromagnets 4 continuously come into contact with the liquid, thereby achieving continuous adsorption and filtration of impurities in the liquid.

[0045] Impurity recovery

[0046] Impurity removal: A recovery chamber 12 is provided on one side of the filter chamber 8. A through groove 10 is provided on the surface of the recovery chamber 12. A scraper 9 is fixedly provided on the surface of the through groove 10. The scraper 9 is attached to the electromagnet 4. When the cylinder 5 rotates to the position of the scraper 9, the notch of the arc-shaped power-connected slide rail 15 is exactly aligned with the direction of the scraper 9. At this time, the electromagnet 4 that reaches the direction of the scraper 9 will be de-energized, the magnetic field will disappear, and the iron filings and other impurities adsorbed on the surface of the electromagnet 4 will be successfully scraped off under the action of the scraper 9.

[0047] Impurity collection: The scraped-off impurities enter the recovery chamber 12 through the channel 10, thereby realizing the collection and recovery of impurities, preventing impurities from re-entering the liquid, and ensuring the continuous effectiveness of filtration.

[0048] Power connection and operation of electromagnet

[0049] The power connection mechanism 7 includes a wire 6, a clamp 13, a power connection slider 14, an arc-shaped power connection slide rail 15, and a mounting boss 16. The mounting boss 16 is fixedly installed on the center of both sides of the cylinder 5, and several power connection sliders 14 are fixedly arranged in a ring on one side. An arc-shaped power connection slide rail 15 is fixedly installed on the inner side of the outer shell 11, and the power connection sliders 14 are slidably set on the surface of the arc-shaped power connection slide rail 15. The notch of the arc-shaped power connection slide rail 15 is set in the direction corresponding to the scraper 9. In this way, when the electromagnet 4 moves to the position of the scraper 9 during the rotation of the cylinder 5, the power connection slider 14 corresponds to the notch of the arc-shaped power connection slide rail 15, the electromagnet 4 is de-energized, and the scraper 9 can easily scrape off iron filings and other impurities. The power connection slider 14 is connected to the electromagnet 4 through the wire 6, and the surface of the wire 6 is fixed by the clamp 13 to ensure that the wire 6 will not be affected by shaking during the rotation of the cylinder 5.

[0050] Liquid output

[0051] Liquid output: After multi-stage filtration, the liquid flows out from the outlet 19 on the side of the outer shell 11 corresponding to the lower side of the filter chamber 8. At this time, the impurity content in the liquid has been greatly reduced, meeting the cleanliness requirements of surface treatment. It can be recycled for surface treatment processes, realizing the recycling of liquid, improving resource utilization, and reducing production costs.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage filtration circulation system for surface treatment, comprising a housing (11), characterized in that: The inner side of the outer shell (11) is provided with a plurality of transmission rollers (3), and the surface of the transmission rollers (3) is fitted with a mesh conveyor belt (1). The mesh conveyor belt (1) is inclined and the surface of the mesh conveyor belt (1) is provided with a plurality of dividing protrusions (2). The inner side of the outer shell (11) is provided with a filter chamber (8) corresponding to the lower side of the mesh conveyor belt (1). The filter chamber (8) is provided with a cylinder (5) rotatably mounted on a rotating shaft (17). The rotating shaft (17) is driven by a motor (20). The surface of the cylinder (5) is divided with a plurality of electromagnets (4), and the two sides of the cylinder (5) are provided with a power connection mechanism (7).

2. The multi-stage filtration circulation system for surface treatment according to claim 1, characterized in that: The outer shell (11) has an inlet (18) on one side of the surface corresponding to the upper end of the mesh conveyor belt (1), and an outlet (19) on the lower side of the filter chamber (8) on one side of the surface corresponding to the surface of the outer shell (11).

3. The multi-stage filtration circulation system for surface treatment according to claim 2, characterized in that: The filter chamber (8) has a recovery chamber (12) on one side. The surface of the recovery chamber (12) has a through groove (10). A scraper (9) is fixedly installed on the surface of the through groove (10). The scraper (9) is attached to the electromagnet (4).

4. A multi-stage filtration circulation system for surface treatment according to claim 3, characterized in that: The power connection mechanism (7) includes a wire (6), a clamp (13), a power connection slider (14), an arc-shaped power connection slide rail (15), and a mounting boss (16).

5. A multi-stage filtration circulation system for surface treatment according to claim 4, characterized in that: The mounting boss (16) is fixedly installed at the center of both sides of the cylinder (5), and a number of electrical sliders (14) are fixedly arranged in a ring on one side of the mounting boss (16).

6. A multi-stage filtration circulation system for surface treatment according to claim 5, characterized in that: The inner side of the outer shell (11) is fixedly provided with an arc-shaped power-connecting slide rail (15), and the power-connecting slider (14) is slidably disposed on the surface of the arc-shaped power-connecting slide rail (15). The notch of the arc-shaped power-connecting slide rail (15) is set in the direction corresponding to the scraper (9).

7. A multi-stage filtration circulation system for surface treatment according to claim 6, characterized in that: The electric contact slider (14) is connected to the electromagnet (4) via a wire (6), and the surface of the wire (6) is fixed by a clamp (13).