Passivation liquid purification and recycling equipment

By installing a drive shaft and scraper to remove impurities in the passivation solution purification equipment, combined with multi-stage filter plates, the problem of passivation solution precipitation is solved, achieving efficient purification and reuse.

CN224299355UActive Publication Date: 2026-05-29SHIJIAZHUANG KEHUAN ENVIRONMENTAL PROTECTION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHIJIAZHUANG KEHUAN ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-06-16
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In existing passivation solution purification equipment, impurities in the passivation solution tend to settle after prolonged standing, which increases the difficulty of purification and makes it difficult to effectively reuse the solution.

Method used

A drive shaft and scraper are installed in the second storage tank. The scraper is driven by a servo motor to scrape the inner bottom surface. Combined with the filter box and multi-stage filter plates, it can clean the sediment of impurities and achieve multi-stage filtration.

Benefits of technology

This effectively prevents impurities from settling on the bottom surface of the passivation solution in the storage tank, thus improving the purification efficiency and reuse effect of the passivation solution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to passivation liquid recovery equipment technical field discloses a kind of passivation liquid purification recycling equipment, including base, the base upper end surface one side is clamped and is connected with fixed frame, the base upper end surface other side is clamped and is connected with support frame, the first liquid storage tank is clamped and is connected with the upper end surface of fixed frame, the second liquid storage tank is embedded and is set in the upper end surface midpoint of support frame, the upper end surface of second liquid storage tank is provided with cover plate, the transmission shaft is rotatably embedded and set in the midpoint of the lower end surface of cover plate. In the utility model, after setting transmission shaft and scraper in the second liquid storage tank, the inner bottom surface of second liquid storage tank can be scraped by servo motor driving scraper through transmission shaft, impurities carried by passivation liquid can be effectively prevented from depositing to the inner bottom surface of tank body, and the filter box can be provided with filter plate to filter impurities in passivation liquid, so that passivation liquid can be better purified and recycled.
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Description

Technical Field

[0001] This utility model relates to the technical field of passivation liquid recovery equipment, and in particular to a passivation liquid purification and reuse equipment. Background Technology

[0002] Hot-dip galvanizing, also known as hot-dip zinc plating, is a method of obtaining a metallic coating by immersing steel components in molten zinc. The passivation process in galvanizing aims to form a passivation film on the surface of the hot-dip galvanized layer, enhancing its corrosion resistance. The cleanliness of the passivation solution directly affects the quality of the passivation film, thus influencing the corrosion resistance of the product. The passivation solution is a solution that can passivate the metal surface.

[0003] In the process of developing this application, the inventors discovered the following problems with the prior art: Currently, most existing passivation liquid purification equipment requires storing the passivation liquid containing impurities in a tank when purifying and reusing the passivation liquid. Since the impurities in the passivation liquid will precipitate after a long period of standing, the storage tank becomes difficult to clean after a long time, which increases the difficulty of purifying the passivation liquid. Therefore, those skilled in the art have provided a passivation liquid purification and reuse equipment to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a passivation liquid purification and reuse device. By installing a drive shaft and scraper in the second storage tank, a servo motor can drive the scraper via the drive shaft to scrape the inner bottom surface of the second storage tank, effectively preventing impurities in the passivation liquid from settling on the inner bottom surface of the tank. The filter box, equipped with a filter plate, filters impurities in the passivation liquid, thus better enabling the purification and reuse of the passivation liquid.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A passivation liquid purification and reuse device includes a base, a fixing frame is snapped onto one side of the upper end face of the base, a support frame is snapped onto the other side of the upper end face of the base, a first liquid storage tank is snapped onto the upper end face of the fixing frame, a second liquid storage tank is embedded at the midpoint of the upper end face of the support frame, a cover plate is provided on the upper end face of the second liquid storage tank, a drive shaft is rotatably embedded at the midpoint of the lower end face of the cover plate, and scrapers are fixedly provided on both sides of the lower end of the outer surface of the drive shaft;

[0007] A mounting bracket is snapped onto the midpoint of the upper surface of the base. A filter box is snapped into the upper end of the mounting bracket. A mounting cover is snapped onto the upper surface of the filter box. A mounting plate is fixedly mounted on the lower surface of the mounting cover. Four filter plates are movably embedded between the two sides of the mounting plate.

[0008] Furthermore, a fixed outer shell is snapped onto the midpoint of the upper surface of the cover plate, and a servo motor is snapped onto the midpoint of the upper surface of the cover plate, with the fixed outer shell fitted onto the outer surface of the servo motor.

[0009] Furthermore, the output end of the servo motor and the upper end of the transmission shaft are fixedly connected, and the two sides of the lower end face of the scraper are in contact with the bottom surface of the second liquid storage tank.

[0010] Furthermore, a second water pump is snapped onto one side of the midpoint of the upper end face of the base. One side of the second water pump is fixedly connected to the midpoint of the lower end face of the second liquid storage tank via a pipe. The upper end face of the second water pump is fixedly connected to the midpoint of the upper end of the filter box via a pipe.

[0011] Furthermore, a resin tower is snapped onto the lower end of the mounting bracket, and a solenoid valve is snapped onto the lower end of the filter box. The lower end of the solenoid valve is snapped onto the upper end of the resin tower for fixation.

[0012] Furthermore, a first water pump is fixedly installed on one side of the upper end face of the fixed frame, and the midpoint of the upper end face of the first liquid storage tank is fixedly connected to one side of the first water pump through a pipe. The lower end face of the resin tower is fixedly connected to the upper end face of the first water pump through a pipe.

[0013] Furthermore, the cover plate is fixed to the upper end face of the second liquid storage tank by bolts, and the filter hole diameter of the four filter plates decreases from top to bottom.

[0014] This utility model has the following beneficial effects:

[0015] 1. The passivation liquid purification and reuse device proposed in this utility model, after setting a cover plate on the upper end face of the second liquid storage tank, can be installed and fixed on the upper end face of the second liquid storage tank with bolts. After the servo motor is snapped and set at the midpoint of the upper end face of the cover plate, the transmission shaft and the output end of the servo motor can be fixedly connected by rotating and embedding the lower end face of the cover plate. After fixing a scraper on the lower end of the outer surface of the transmission shaft, the scraper can be put into contact with the inner bottom surface of the second liquid storage tank. After the servo motor is started, it can drive the scraper to scrape the inner bottom surface of the second liquid storage tank, thereby preventing impurities in the passivation liquid from settling on the inner bottom surface of the second liquid storage tank, and at the same time reducing the purification difficulty of the passivation liquid.

[0016] 2. The passivation liquid purification and reuse equipment proposed in this utility model, by snapping a filter box onto the upper end of the mounting frame, can embed a mounting cover with a fixed mounting plate into the upper end and interior of the filter box. At the same time, the mounting cover can be fixed to the upper end of the filter box with bolts. After four filter plates are movably embedded between the inner walls on both sides of the mounting plate, the four filter plates can filter the impurities in the passivation liquid that needs to be purified, thereby improving the purification of the passivation liquid. The first storage tank can store the filtered and purified passivation liquid, which can better reuse the passivation liquid. Attached Figure Description

[0017] Figure 1 This is a first isometric schematic diagram of the present invention;

[0018] Figure 2 This is a second isometric schematic diagram of the present invention;

[0019] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0020] Figure 4 This is a schematic cross-sectional view of the second liquid storage tank of this utility model;

[0021] Figure 5 This is a cross-sectional schematic diagram of the filter box of this utility model;

[0022] Figure 6 This is a cross-sectional view of the mounting plate of this utility model.

[0023] Legend:

[0024] 1. First storage tank; 2. First water pump; 3. Filter box; 4. Second storage tank; 5. Fixing frame; 6. Base; 7. Mounting frame; 8. Second water pump; 9. Support frame; 10. Fixed outer shell; 11. Resin tower; 12. Cover plate; 13. Mounting cover; 14. Solenoid valve; 15. Scraper; 16. Servo motor; 17. Drive shaft; 18. Mounting plate; 19. Filter plate. Detailed Implementation

[0025] 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.

[0026] Reference Figures 1 to 6A passivation liquid purification and reuse device includes a base 6, a fixing frame 5 is snapped onto one side of the upper end face of the base 6, a support frame 9 is snapped onto the other side of the upper end face of the base 6, a first liquid storage tank 1 is snapped onto the upper end face of the fixing frame 5, a second liquid storage tank 4 is embedded at the midpoint of the upper end face of the support frame 9, a cover plate 12 is provided on the upper end face of the second liquid storage tank 4, a drive shaft 17 is rotatably embedded at the midpoint of the lower end face of the cover plate 12, and scrapers 15 are fixedly provided on both sides of the lower end of the outer surface of the drive shaft 17.

[0027] A mounting bracket 7 is snapped onto the midpoint of the upper surface of the base 6. A filter box 3 is snapped into the upper end of the mounting bracket 7. A mounting cover 13 is snapped onto the upper surface of the filter box 3. A mounting plate 18 is fixedly installed on the lower surface of the mounting cover 13. Four filter plates 19 are movably embedded between the two sides of the mounting plate 18.

[0028] Specifically, after the fixing frame 5, mounting frame 7, and support frame 9 are bolted to the upper end face of the base 6, the first storage tank 1, filter box 3, resin tower 11, and second storage tank 4 can be installed and fixed respectively. This allows the first storage tank 1, filter box 3, resin tower 11, and second storage tank 4 to better purify the passivation solution. The first storage tank 1 can store the purified passivation solution, while the second storage tank 4 can store the passivation solution containing impurities. After the cover plate 12 is installed on the upper end face of the second storage tank 4, it can be rotated on the lower end face of the cover plate 12. A drive shaft 17 with a scraper 15 is embedded in the drive shaft 17. When the drive shaft 17 rotates, it can drive the scraper 15 to scrape and clean the inner bottom surface of the second liquid storage tank 4. After the filter box 3 is attached to the upper end of the mounting bracket 7, the mounting cover 13 can be attached to the upper end of the filter box 3. After the mounting plate 18 is fixed to the lower end of the mounting cover 13, four filter plates 19 can be movably embedded between the inner walls of the two sides of the mounting plate 18. This allows the four filter plates 19 to perform multi-stage filtration of the passivation liquid containing impurities discharged into the filter box 3, thereby improving the purification efficiency of the passivation liquid.

[0029] Reference Figure 3 and Figure 4 A fixed outer shell 10 is snapped onto the midpoint of the upper surface of the cover plate 12, and a servo motor 16 is snapped onto the midpoint of the upper surface of the cover plate 12. The fixed outer shell 10 is fitted onto the outer surface of the servo motor 16.

[0030] Specifically, after the fixed housing 10 is snapped onto the upper end face of the cover plate 12, the servo motor 16 can be snapped between the cover plate 12 and the fixed housing 10. At the same time, the upper end of the drive shaft 17 is rotated through the upper end face of the cover plate 12, so that the output end of the drive shaft 17 and the servo motor 16 can be fixedly connected. The fixed housing 10 can provide a certain degree of protection for the servo motor 16. The servo motor 16 adopts the existing conventional technical structure.

[0031] Reference Figure 4 The output end of the servo motor 16 and the upper end of the drive shaft 17 are fixedly connected, and the two sides of the lower end face of the scraper 15 are attached to the inner bottom surface of the second liquid storage tank 4.

[0032] Specifically, after the drive shaft 17 and the output end of the servo motor 16 are fixedly connected, the servo motor 16 can drive the drive shaft 17 and the scraper 15 to rotate, thereby scraping and cleaning the inner bottom surface of the second liquid storage tank 4.

[0033] Reference Figure 1 and Figure 3 A second water pump 8 is snapped onto one side of the upper end face of the base 6 at the midpoint. The second water pump 8 is fixedly connected to the lower end face of the second liquid storage tank 4 via a pipe. The upper end face of the second water pump 8 is fixedly connected to the upper end face of the filter box 3 via a pipe at the midpoint of the upper end.

[0034] Specifically, after the second water pump 8 is installed and fixed on one side of the upper end face of the base 6, two pipes can be used to connect the second liquid storage tank 4 and the filter box 3. This allows the second water pump 8 to better transport the passivation liquid that needs to be purified in the second liquid storage tank 4 to the filter box 3 for multi-stage filtration. The upper side of the outer surface of the second liquid storage tank 4 can be connected to the infusion pipe, so that the passivation liquid that needs to be purified can be transported to the second liquid storage tank 4 for storage.

[0035] Reference Figure 3 The lower end of the mounting bracket 7 is fitted with a resin tower 11, and the lower end of the filter box 3 is fitted with a solenoid valve 14. The lower end of the solenoid valve 14 is fitted with and fixed to the upper end of the resin tower 11.

[0036] Specifically, after the resin tower 11 is snapped onto the lower end of the mounting frame 7, a solenoid valve 14 can be installed between the filter box 3 and the resin tower 11. After the upper and lower ends of the solenoid valve 14 are snapped onto the lower end of the filter box 3 and the upper end of the resin tower 11 respectively, the solenoid valve 14 can control the flow rate of the passivation liquid. The solenoid valve 14 adopts the existing conventional technical structure, while the resin tower 11 can adsorb the ferrous ions and zinc ions in the passivation liquid, thereby purifying the passivation liquid.

[0037] Reference Figure 1 and Figure 3 The first water pump 2 is fixedly installed on one side of the upper end face of the fixed frame 5. The first liquid storage tank 1 is fixedly connected to one side of the first water pump 2 through a pipe at the midpoint of the upper end face. The lower end face of the resin tower 11 is fixedly connected to the upper end face of the first water pump 2 through a pipe.

[0038] Specifically, after the first water pump 2 is installed and fixed on the upper end of the fixing frame 5, two pipes can be used to connect the first water pump 2 and the first storage tank 1 to the resin tower 11, so that the filtered and purified passivation liquid can be transported to the first storage tank 1 for storage. At the same time, the first water pump 2 and the second water pump 8 are both set with existing conventional technical structures. Meanwhile, a drain pipe and valve are snapped on the lower end of the first storage tank 1, so that the purified and filtered passivation liquid can be discharged and reused.

[0039] Reference Figure 1 and Figure 6 The cover plate 12 is fixed to the upper end face of the second liquid storage tank 4 by bolts, and the filter hole diameter in the four filter plates 19 decreases from top to bottom.

[0040] Specifically, after the cover plate 12 is bolted to the upper end face of the second liquid storage tank 4, a rubber gasket can be placed between the cover plate 12 and the upper end face of the second liquid storage cover to increase the sealing performance of the cover plate 12 after it is installed on the upper end face of the second liquid storage tank 4. At the same time, among the four filter plates 19, the filter pore diameter of the filter plates 19 decreases from top to bottom, so that the filter plates 19 can better perform multi-stage filtration of impurities in the passivation liquid. In addition, the filter plates 19 that are movably embedded can be removed and cleaned after the cover 13 and the filter box 3 are separated.

[0041] Working principle: During use, the operator can connect the infusion pipeline and the second storage tank 4 to discharge the passivation solution to be purified into the second storage tank 4 for storage. At the same time, after starting the servo motor 16, the servo motor 16 drives the scraper 15 to rotate through the transmission shaft 17, scraping the inner bottom surface of the second storage tank 4 to prevent impurities in the passivation solution from settling. After the mounting plate 18 with four filter plates 19 and the mounting cover 13 are embedded in the filter box 3, the second water pump 8 can be started to transport the passivation solution in the second storage tank 4 to the filter box 3 for multi-stage filtration of impurities in the passivation solution. After opening the solenoid valve 14, the filtered passivation solution can be discharged into the resin tower 11, where the resin tower 11 adsorbs the divalent iron ions and zinc ions in the passivation solution. After purification, the first water pump 2 can be started to transport the purified passivation solution to the first storage tank 1 for storage.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A passivation solution purification and reuse device, comprising a base (6), characterized in that: A fixing frame (5) is snapped onto one side of the upper end face of the base (6), and a support frame (9) is snapped onto the other side of the upper end face of the base (6). A first liquid storage tank (1) is snapped onto the upper end face of the fixing frame (5). A second liquid storage tank (4) is embedded at the midpoint of the upper end face of the support frame (9). A cover plate (12) is provided on the upper end face of the second liquid storage tank (4). A drive shaft (17) is rotatably embedded at the midpoint of the lower end face of the cover plate (12). Scrapers (15) are fixedly provided on both sides of the lower end of the outer surface of the drive shaft (17). A mounting bracket (7) is snapped onto the midpoint of the upper surface of the base (6). A filter box (3) is snapped into the upper end of the mounting bracket (7). A mounting cover (13) is snapped onto the upper surface of the filter box (3). A mounting plate (18) is fixedly mounted on the lower surface of the mounting cover (13). Four filter plates (19) are movably embedded between the two sides of the mounting plate (18).

2. The passivation solution purification and reuse equipment according to claim 1, characterized in that: A fixed outer shell (10) is snapped onto the midpoint of the upper surface of the cover plate (12), and a servo motor (16) is snapped onto the midpoint of the upper surface of the cover plate (12). The fixed outer shell (10) is fitted onto the outer surface of the servo motor (16).

3. The passivation solution purification and reuse equipment according to claim 2, characterized in that: The output end of the servo motor (16) and the upper end of the transmission shaft (17) are fixedly connected, and the two sides of the lower end face of the scraper (15) are attached to the inner bottom surface of the second liquid storage tank (4).

4. The passivation solution purification and reuse equipment according to claim 1, characterized in that: A second water pump (8) is snapped onto one side of the upper end face of the base (6). The second water pump (8) is fixedly connected to the lower end face of the second liquid storage tank (4) via a pipe. The upper end face of the second water pump (8) is fixedly connected to the upper end face of the filter box (3) via a pipe near the upper midpoint.

5. The passivation solution purification and reuse equipment according to claim 1, characterized in that: The mounting bracket (7) is fitted with a resin tower (11) at its lower end, and a solenoid valve (14) is fitted with the lower end of the filter box (3). The solenoid valve (14) is fixedly fitted with the upper end of the resin tower (11) at its lower end.

6. The passivation solution purification and reuse equipment according to claim 5, characterized in that: The first water pump (2) is fixedly installed on one side of the upper end face of the fixed frame (5). The first liquid storage tank (1) is fixedly connected to one side of the first water pump (2) through a pipe at the midpoint of the upper end face. The lower end face of the resin tower (11) is fixedly connected to the upper end face of the first water pump (2) through a pipe.

7. The passivation solution purification and reuse equipment according to claim 1, characterized in that: The cover plate (12) is fixed to the upper end face of the second liquid storage tank (4) by bolts, and the filter hole diameters of the four filter plates (19) decrease from top to bottom.