Filtering device for producing composite chromium-free passivating agent

By combining a vertical rotating shaft, centrifugal cleaning, and a tapping mechanism, the problem of difficult-to-clean impurities inside the filter screen is solved, achieving efficient filtration and cleaning of the filter bucket and improving the production efficiency and quality of the passivating agent.

CN224056810UActive Publication Date: 2026-03-31CANGZHOU HUARUN CHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing composite chromium-free passivating agent production filtration devices are unable to effectively clean impurities inside the filter screen, leading to blockage and affecting filtration effect and efficiency.

Method used

A composite filtration device for the production of chromium-free passivating agents was designed. Through the cooperation of a vertical rotating shaft, a centrifugal unblocking mechanism, and a striking mechanism, the impurities at the top and inside of the filter bucket are cleaned simultaneously. The centrifugal unblocking mechanism rotates to centrifuge the impurities into the support ring platform, while the striking mechanism knocks the impurities from the bottom to the support ring platform, ensuring the filtration rate and effect of the filter bucket.

Benefits of technology

This method simultaneously cleans impurities from the top and inside of the filter bucket, improving filtration efficiency and effectiveness, extending equipment lifespan, and reducing the negative impact of impurities on the quality of the passivating agent.

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Abstract

The utility model relates to the technical field of composite chromium-free passivator production, in particular to a filter device for composite chromium-free passivator production, which comprises a barrel with the bottom communicated with a discharge port, and a vertical rotating shaft is vertically and rotatably connected to the middle bottom of the barrel. A scrap collecting ring support and a filter cone are sequentially and vertically matched with the position, above the vertical rotating shaft, in the barrel in a guiding and sliding mode, a dredging centrifugal mechanism is arranged in the filter cone, and a vertical guiding shaft which is vertically matched with the dredging centrifugal mechanism in a guiding and sliding mode is fixedly installed at the top of the vertical rotating shaft; according to the filter cone cleaning device, impurities at the top of the filter cone and impurities in the filter cone can be conveniently cleaned at the same time, and the filtering passing rate and the filtering effect of the filter cone are further guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of composite chromium-free passivating agent production technology, specifically a filtration device for the production of composite chromium-free passivating agents. Background Technology

[0002] The main functions of filtration in the production of composite chromium-free passivating agents include removing impurities, improving product quality, and extending equipment life. Filtration can effectively remove impurities and particulate matter during the production process, ensuring the quality and purity of the passivating agent. This helps reduce the negative impact of impurities on the passivation effect and improves the performance and stability of the passivating agent. A search revealed that patent CN216934961U discloses a composite filtration device for the production of chromium-free passivating agents. This device, through the cooperation of a stirring rod, reciprocating screw, universal ball, counterweight ball, filter plate, U-shaped component, cleaning plate, and rectangular plate, can filter and remove impurities from the passivating agent raw materials and can replace manual cleaning of impurities at the top of the filter screen, thus effectively improving the production efficiency of the passivating agent. However, it only cleans impurities at the top, making it inconvenient to clean impurities inside the filter screen. Impurities inside the filter screen easily clog it, thus hindering the normal filtration process. Therefore, a composite filtration device for the production of chromium-free passivating agents is designed to facilitate simultaneous cleaning of impurities at the top and inside of the filter hopper, further ensuring the filtration throughput and filtration effect of the filter hopper. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a composite chromium-free passivating agent production filtration device, which facilitates the simultaneous cleaning of impurities on the top and inside of the filter bucket, further ensuring the filtration throughput and filtration effect of the filter bucket.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a filtration device for the production of composite chromium-free passivating agents, comprising a cylinder with a discharge port at the bottom, a vertical rotating shaft vertically rotatably connected to the bottom of the cylinder, a chip collection ring and a filter bucket vertically guided and slidably fitted in sequence above the vertical rotating shaft inside the cylinder, a centrifugal unblocking mechanism being provided inside the filter bucket, a vertical guide shaft vertically guided and slidably fitted to the top of the vertical rotating shaft, and a striking mechanism for striking the bottom of the filter bucket being provided below the chip collection ring inside the cylinder, the striking mechanism being connected to the vertical rotating shaft via a transmission mechanism.

[0007] Preferably, the centrifugal unblocking mechanism includes a guide rotating seat that is vertically rotatably connected to the bottom of the filter hopper. The top of the guide rotating seat is circumferentially fixed with a plurality of scraping strips that contact the top of the filter hopper. The guide rotating seat is vertically slidably guided by a vertical guide shaft.

[0008] Preferably, the striking mechanism includes a horizontal rotating shaft rotatably connected inside the cylinder, and a striking bar is fixedly installed on the horizontal rotating shaft at a position directly below the filter hopper.

[0009] Preferably, the transmission mechanism includes a main bevel gear, which is fixedly mounted on a vertical rotating shaft, and a driven bevel gear that meshes with the main bevel gear is fixedly mounted on the side of the horizontal rotating shaft near the vertical rotating shaft. The main bevel gear and the multiple driven bevel gears are provided with protective covers on their exteriors, and both the vertical rotating shaft and the horizontal rotating shaft are rotatably and sealed to the protective covers.

[0010] Preferably, a support ring platform for supporting the chip collection ring is fixedly installed inside the cylinder.

[0011] Preferably, a flow collector is vertically fitted to the top of the filter bucket.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a composite filtration device for the production of chromium-free passivating agents, which has the following advantages:

[0014] This filtration device for producing composite chromium-free passivating agents facilitates filtration of the composite chromium-free passivating agent through a combination of a cylindrical body with a discharge port at the bottom, a support ring platform, and a filter bucket. The device utilizes the coordination of the cylindrical body, support ring platform, vertical rotating shaft, vertical guide shaft, filter bucket, and centrifugal cleaning mechanism. Rotating the vertical rotating shaft synchronously drives the vertical guide shaft and centrifugal cleaning mechanism, thereby clearing impurities from the top of the vertical rotating shaft and centrifugally discharging them into the support ring platform. Through the coordination of a transmission mechanism and a striking mechanism, the rotation of the vertical rotating shaft synchronously drives the striking mechanism... The rotating striking mechanism knocks the filter bucket from the bottom, dislodging impurities stuck inside from the top. These impurities are then centrifuged by the centrifugal mechanism and transferred to the support ring. This simultaneous cleaning of impurities on the top and inside of the filter bucket allows for easy removal of the filter bucket and support ring from the cylinder. The impurities collected in the support ring are then removed. This composite chromium-free passivating agent production filtration device facilitates simultaneous cleaning of impurities on the top and inside of the filter bucket, further ensuring the filtration throughput and effectiveness of the filter bucket. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall disassembled structure of this utility model;

[0016] Figure 2 This is a structural diagram of the entire utility model from other perspectives.

[0017] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the overall partial cross-section of this utility model.

[0019] The following are labels in the attached diagram: 1. Cylinder; 2. Discharge port; 3. Filter hopper; 4. Vertical rotating shaft; 5. Support ring platform; 6. Chip collecting ring support; 7. Flow collecting hood; 8. Guide rotating seat; 9. Scraper belt; 10. Vertical guide shaft; 11. Striking rod; 12. Horizontal rotating shaft; 13. Bushing; 14. Main bevel gear; 15. Driven bevel gear; 16. Protective cover; 17. Drive motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example:

[0022] Please see Figure 1-4 A composite chromium-free passivating agent production filtration device includes a cylindrical body 1 with a discharge port 2 at the bottom. A vertical rotating shaft 4 is vertically rotatably connected to the bottom of the cylindrical body 1. Inside the cylindrical body 1, above the vertical rotating shaft 4, a chip collection ring support 6 and a filter hopper 3 are vertically guided and slidably fitted. A centrifugal cleaning mechanism is provided inside the filter hopper 3. A vertical guide shaft 10 is fixedly installed at the top of the vertical rotating shaft 4, which is vertically guided and slidably fitted with the centrifugal cleaning mechanism. Inside the cylindrical body 1, below the chip collection ring support 6, a striking mechanism is provided to strike the bottom of the filter hopper 3. The striking mechanism and the vertical rotating shaft 4 are connected by a transmission mechanism. Furthermore, a drive motor 17 for driving the vertical rotating shaft 4 to rotate is fixedly installed at the bottom of the cylindrical body 1. Starting the drive motor 17 facilitates the rotation of the vertical rotating shaft 4.

[0023] The centrifugal cleaning mechanism includes a guide rotating seat 8 that is vertically rotatably connected to the bottom of the filter hopper 3. Multiple scraper belts 9 that contact the top of the filter hopper 3 are fixedly installed on the top of the guide rotating seat 8. The guide rotating seat 8 is vertically slidably guided by the vertical guide shaft 10. By driving the vertical rotating shaft 4 to rotate, the vertical guide shaft 10 is driven to rotate, which in turn drives the multiple scraper belts 9 to rotate. This can clean the impurities on the top of the filter hopper 3 and centrifuge them outward into the support ring platform 5.

[0024] The striking mechanism includes a horizontal rotating shaft 12 rotatably connected inside the cylinder 1. A striking rod 11 is fixedly installed on the horizontal rotating shaft 12 at a position directly below the filter hopper 3. Furthermore, the transmission mechanism is located between the horizontal rotating shaft 12 and the vertical rotating shaft 4. When the vertical rotating shaft 4 rotates, it can drive the horizontal rotating shaft 12 and the striking rod 11 to rotate, so that multiple sets of striking rods 11 can strike the filter hopper 3 upwards in sequence, thereby knocking out the impurities inside the filter hopper 3. Furthermore, a bushing 13 is fixedly installed on the cylinder 1, which is rotatably and slidably engaged with the horizontal rotating shaft 12. Through the engagement of the bushing 13, the rotational stability of the horizontal rotating shaft 12 is improved.

[0025] The transmission mechanism includes a main bevel gear 14, which is fixedly mounted on the vertical rotating shaft 4. A driven bevel gear 15 that meshes with the main bevel gear 14 is fixedly mounted on the side of the horizontal rotating shaft 12 near the vertical rotating shaft 4. A protective cover 16 is provided on the outside of the main bevel gear 14 and the multiple driven bevel gears 15. The vertical rotating shaft 4 and the horizontal rotating shaft 12 are both sealed and rotatably connected to the protective cover 16. Through the cooperation of the main bevel gear 14 and the driven bevel gears 15, the horizontal rotating shaft 12 can be driven to rotate when the vertical rotating shaft 4 rotates.

[0026] Inside the cylinder 1, a support ring platform 5 is fixedly installed to support the chip collection ring support 6. The position of the support ring platform 5 facilitates the support and limiting of the chip collection ring support 6.

[0027] The top of the filter hopper 3 is vertically fitted with a flow collector 7, which facilitates the centralized pouring of composite chromium-free passivating agent material into the filter hopper 3.

[0028] During use, continuously pour the composite chromium-free passivating agent material into the filter hopper 3, while simultaneously rotating the vertical shaft 4. This causes the centrifugal unblocking mechanism and the striking mechanism to rotate simultaneously. The centrifugal unblocking mechanism unblocks the impurities at the top of the filter hopper 3 and centrifuges them outwards into the support ring platform 5. The striking mechanism strikes the filter hopper 3 from the bottom, knocking out the impurities inside the filter hopper 3. Then, the centrifugal unblocking mechanism centrifuges them into the support ring platform 5. The filtered composite chromium-free passivating agent material is discharged through the discharge port 2 at the bottom of the cylinder 1. After filtration, remove the filter hopper 3 and the support ring platform 5 from the top of the cylinder 1 in sequence. Then, pour out the impurities in the support ring platform 5 for cleaning. Finally, reposition the support ring platform 5 and the filter hopper 3 back into the top of the cylinder 1 in sequence.

[0029] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0030] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0031] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A filtration device for producing composite chromium-free passivating agents, characterized in that: The device comprises a cylinder (1) with a discharge port (2) at the bottom, a vertical rotating shaft (4) is connected to the middle bottom of the cylinder (1), a chip collecting ring holder (6) and a filter (3) are vertically guided and slidably fitted above the vertical rotating shaft (4) in the cylinder (1), a dredging centrifugal mechanism is arranged in the filter (3), a vertical guide shaft (10) is fixedly installed on the top of the vertical rotating shaft (4) and vertically guided and slidably fitted with the dredging centrifugal mechanism, a knocking mechanism for knocking the bottom of the filter (3) is arranged below the chip collecting ring holder (6) in the cylinder (1), and the knocking mechanism is drivingly connected with the vertical rotating shaft (4) through a transmission mechanism.

2. The filtering device for producing a composite chromium-free passivation agent according to claim 1, characterized in that: The dredging centrifugal mechanism comprises a vertical guide rotating seat (8) which is rotatably connected to the bottom of the filter (3), a plurality of scraping belts (9) are fixedly installed on the top of the vertical guide rotating seat (8) and in contact with the top of the filter (3), and the vertical guide rotating seat (8) is vertically guided and slidably fitted with the vertical guide shaft (10).

3. The filtering device for producing a composite chromium-free passivation agent according to claim 2, characterized in that: The knocking mechanism comprises a horizontal rotating shaft (12) which is rotatably connected in the cylinder (1), and a knocking rod (11) is fixedly installed on the horizontal rotating shaft (12) below the filter (3).

4. The filtering device for producing a composite chromium-free passivation agent according to claim 3, characterized in that: The transmission mechanism comprises a main bevel gear (14) which is fixedly installed on the vertical rotating shaft (4), a slave bevel gear (15) which is engaged with the main bevel gear (14) is fixedly installed on one side of the horizontal rotating shaft (12) close to the vertical rotating shaft (4), a protective cover (16) is arranged on the outside of the main bevel gear (14) and the plurality of slave bevel gears (15), and the vertical rotating shaft (4) and the horizontal rotating shaft (12) are sealingly and rotatably connected with the protective cover (16).

5. The filtering device for producing a composite chromium-free passivation agent according to claim 4, characterized in that: A support ring table (5) for supporting the chip collecting ring holder (6) is fixedly installed in the cylinder (1).

6. The filtering device for producing a composite chromium-free passivation agent according to claim 5, characterized in that: A flow collecting cover (7) is vertically clamped and fitted on the top of the filter (3).

Citation Information

Patent Citations

  • Filtering device for producing composite chromium-free passivating agent

    CN216934961U