A fine steel hot galvanizing and passivating equipment

By introducing a motor-driven stirring and pusher system into the hot-dip galvanizing passivation equipment, the problem of resource waste caused by the static setting of the passivation solution was solved, and the solution was recycled and the equipment efficiency was improved.

CN224450792UActive Publication Date: 2026-07-03WUXI ZINC HUIFENG METAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI ZINC HUIFENG METAL TECHNOLOGY CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

During the hot-dip galvanizing and passivation process of steel, the settling of the passivation solution leads to resource waste.

Method used

The solution is stirred by a motor-driven silicone stirring rack, and the steel is moved by an electric push rod and a motor-driven connecting plate, so that the solution can be recycled. Excess liquid is collected by a filter plate, reducing downtime and waste of resources.

Benefits of technology

It improved the working efficiency of the equipment, reduced resource waste during the passivation process, simplified the operation process, and reduced production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of hot-dip galvanizing technology, and in particular to a hot-dip galvanizing passivation device for high-quality steel. It includes a working frame, with a first motor fixedly installed on one side. The output end of the first motor has a threaded rod, and a first connecting plate is threadedly connected to the surface of the threaded rod. Electric push rods are fixedly installed at both ends of the bottom of the first connecting plate. The device rotates a silicone stirring rack to stir the molten zinc liquid, reducing solution stratification and its impact on the passivation effect. The electric push rods move the working box, carrying the high-quality steel, into the solution for passivation. Simultaneously, the electric push rods and the first motor move the working box, carrying the high-quality steel, onto a filter plate, allowing excess liquid to flow along the connecting groove into the interior of the working tank for collection. At the same time, the high-quality steel undergoes passivation treatment on the other side. This not only reduces downtime and improves the efficiency of the equipment, but also reduces resource waste.
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Description

Technical Field

[0001] This utility model belongs to the field of hot-dip galvanizing technology, specifically relating to a hot-dip galvanizing passivation device for high-quality steel. Background Technology

[0002] Hot-dip galvanizing is a corrosion-resistant process that involves immersing steel products in molten zinc, forming a zinc-iron alloy layer on their surface. For long-term use, hot-dip galvanizing prevents the steel substrate from contacting the corrosive solution, protecting it from corrosion. However, in some hot-dip galvanizing processes, the steel needs to be left to stand for passivation, and the passivation solution is directly discharged, resulting in resource waste. Utility Model Content

[0003] To address the problems mentioned in the background art, this utility model provides a high-quality steel hot-dip galvanizing passivation equipment, which solves the problem that in the process of hot-dip galvanizing passivation of some steel products, the steel needs to be left to stand for passivation, and the passivation solution is directly discharged, resulting in a waste of resources.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hot-dip galvanizing and passivation equipment for high-quality steel, comprising a work frame, a first motor fixedly installed on one side of the work frame, a threaded rod provided at the output end of the first motor, a first connecting plate threadedly connected to the surface of the threaded rod, electric push rods fixedly installed at both ends of the bottom of the first connecting plate, a work box provided at the output end of the electric push rod, a filter plate fixedly installed at the bottom of the work box, a work slot and a connecting slot provided inside the work frame, a second connecting plate fixedly installed at both ends of the inner wall of the work frame, a second motor fixedly installed at the bottom of the work frame, a rotating shaft provided at the output end of the second motor, and a silicone stirring rack fixedly installed at the top of the rotating shaft.

[0005] Preferably, a water pipe is fixedly connected to one side of the work frame, and a valve is provided on the surface of the water pipe. Slide rods are fixedly installed on both sides of the inner wall of the work frame.

[0006] Preferably, a door is connected to one side of the work box via a hinge, a connecting rod is fixedly installed on the top of the door, a connecting block is fixedly installed on the top of the connecting rod, a return spring is fixedly installed inside the connecting block, and a limit block is fixedly connected to one end of the return spring.

[0007] Preferably, the limiting blocks are located on both sides inside the connecting block, and the limiting blocks are slidably connected to the connecting block, with the connecting block located above the door.

[0008] Preferably, the surface of the water pipe is L-shaped, one end of the water pipe extends into the interior of the work frame, and the water pipe is located on one side of the silicone mixing rack. The slide rod is located inside the first connecting plate, and the slide rod is slidably connected to the first connecting plate.

[0009] Preferably, the second connecting plate is inclined and located below the connecting groove, and the second connecting plate is located below the filter plate.

[0010] Preferably, the silicone stirring rack is located inside the working tank, and the silicone stirring rack is rotatably connected to the working frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The second motor rotates the silicone stirring rack to agitate the molten zinc, reducing solution stratification and its impact on passivation. An electric push rod moves the working box, carrying the refined steel material, into the solution for passivation. Simultaneously, the electric push rod and the first motor move the working box, carrying the refined steel material, onto the filter plate, allowing excess liquid to flow down the connecting groove into the working tank for collection. At the same time, the refined steel material undergoes passivation on the other side. This not only reduces downtime and improves the equipment's efficiency but also minimizes resource waste. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a first three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a second three-dimensional structural diagram of the present invention;

[0016] Figure 3 This is a cross-sectional view of the present invention;

[0017] Figure 4 This is an enlarged view of utility model A.

[0018] In the diagram: 1. Working frame; 2. First motor; 3. First connecting plate; 4. Slide rod; 5. Threaded rod; 6. Electric push rod; 7. Box door; 8. Working box; 9. Valve; 10. Water pipe; 11. Second motor; 12. Filter plate; 13. Second connecting plate; 14. Rotating shaft; 15. Silicone mixing rack; 16. Working tank; 17. Connecting tank; 18. Connecting rod; 19. Connecting block; 20. Limiting block. Detailed Implementation

[0019] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides the following technical solution: a hot-dip galvanizing and passivation equipment for high-quality steel, including a work frame 1, a first motor 2 fixedly installed on one side of the work frame 1, a threaded rod 5 provided at the output end of the first motor 2, a first connecting plate 3 threadedly connected to the surface of the threaded rod 5, electric push rods 6 fixedly installed at both ends of the bottom of the first connecting plate 3, a work box 8 provided at the output end of the electric push rod 6, a filter plate 12 fixedly installed at the bottom of the work box 8, a work groove 16 and a connecting groove 17 opened inside the work frame 1, a second connecting plate 13 fixedly installed at both ends of the inner wall of the work frame 1, a second motor 11 fixedly installed at the bottom of the work frame 1, a rotating shaft 14 provided at the output end of the second motor 11, and a silicone stirring rack 15 fixedly installed at the top of the rotating shaft 14.

[0021] In a specific embodiment of this utility model, the operator first places the molten zinc liquid into the working tank 16 inside the working frame 1. The second motor 11 operates, causing the rotating shaft 14 to drive the silicone stirring rack 15 to rotate, stirring the solution, reducing stratification, and improving the passivation effect. The high-quality steel is then placed inside the working box 8. The electric push rod 6 extends, moving the working box 8 and the high-quality steel downwards, immersing it in the solution for passivation. A passivation film forms on the surface of the high-quality steel. The electric push rod 6 moves the working box 8 upwards, causing the high-quality steel to move. The first motor 2 rotates the threaded rod 5, which in turn moves the first connecting plate 3, causing the working box 8 to move. Excess liquid drips down the filter plate 12 onto the surface of the second connecting plate 13, and then flows down the connecting groove 17 into the working groove 16 for collection. The working box 8 on the other side moves new high-quality steel into the working groove 16 for passivation treatment. This not only reduces downtime and improves the efficiency of the equipment, but also reduces resource waste.

[0022] In this embodiment: After the work is completed, the operator turns valve 9 to open it, and the solution flows out of the inside of the device through water pipe 10. The operation is simple and reduces the difficulty of the work.

[0023] In this embodiment: the sliding rod 4 is installed to limit the two sides of the first connecting plate 3, ensuring that the first connecting plate 3 can move normally left and right. The operator presses the limiting block 20, moves the limiting block 20 into the connecting block 19, and then pulls it to make the box door 7 rotate and open, placing the high-quality steel into the working box 8. Conversely, rotating the box door 7 closes the box door, releases the limiting block 20, and the elastic force generated by the return spring moves the limiting block 20 out of the connecting block 19 to limit the movement. The design is simple and reduces the production cost of this equipment.

[0024] The working principle and usage process of this utility model are as follows: After the utility model is installed, the operator first places the molten zinc liquid into the working tank 16 inside the working frame 1. The second motor 11 is activated, causing the rotating shaft 14 to drive the silicone stirring rack 15 to rotate, stirring the solution, reducing the stratification of the solution, and improving the passivation effect. The operator presses the limiting block 20, moves the limiting block 20 into the connecting block 19, and then pulls it to open the box door 7, placing the high-quality steel into the working box 8. Conversely, the box door 7 is closed by rotating it, and the limiting block 20 is released. The elastic force generated by the return spring causes the limiting block 20 to move out of the connecting block 19, thus limiting its position. The electric push rod 6 is activated, causing the push rod of the electric push rod 6 to extend, moving the working box 8 and the high-quality steel downwards, immersing the high-quality steel in the solution for passivation. When the solution forms on the surface of the high-quality steel... The passivation film is formed by the operation of the electric push rod 6, which moves the working box 8 upwards, carrying the high-quality steel. The operation of the first motor 2 causes the threaded rod 5 to rotate, moving the first connecting plate 3 and the working box 8. Excess liquid drips down the filter plate 12 onto the surface of the second connecting plate 13, and then flows down the connecting groove 17 into the working groove 16 for collection. The working box 8 on the other side moves the new high-quality steel into the working groove 16 for passivation treatment, reducing time interruptions and resource waste. The sliding rod 4 is installed to limit the two sides of the first connecting plate 3, ensuring that the first connecting plate 3 can move normally left and right. After the work is completed, the operator turns the valve 9 to open it, allowing the solution to flow out of the equipment through the water pipe 10. All electrical equipment in this device is powered by an external power source, and the motors, electric push rods, etc. in this device are controlled by a PLC controller system.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A fine steel hot galvanizing and passivating apparatus comprising a work stand (1), characterized in that: A first motor (2) is fixedly installed on one side of the work frame (1). A threaded rod (5) is provided at the output end of the first motor (2). A first connecting plate (3) is threadedly connected to the surface of the threaded rod (5). An electric push rod (6) is fixedly installed at both ends of the bottom of the first connecting plate (3). A work box (8) is provided at the output end of the electric push rod (6). A filter plate (12) is fixedly installed at the bottom of the work box (8). A work slot (16) and a connecting slot (17) are opened inside the work frame (1). A second connecting plate (13) is fixedly installed at both ends of the inner wall of the work frame (1). A second motor (11) is fixedly installed at the bottom of the work frame (1). A rotating shaft (14) is provided at the output end of the second motor (11). A silicone stirring rack (15) is fixedly installed at the top of the rotating shaft (14).

2. The fine steel hot galvanizing and passivating equipment according to claim 1, characterized in that: A water pipe (10) is fixedly connected to one side of the work frame (1), and a valve (9) is provided on the surface of the water pipe (10). Slide rods (4) are fixedly installed on both sides of the inner wall of the work frame (1).

3. The equipment for boutique steel hot galvanizing and passivating according to claim 1, characterized in that: The work box (8) is hinged on one side and connected to a door (7). A connecting rod (18) is fixedly installed on the top of the door (7). A connecting block (19) is fixedly installed on the top of the connecting rod (18). A return spring is fixedly installed inside the connecting block (19). A limit block (20) is fixedly connected to one end of the return spring.

4. The equipment for boutique steel hot galvanizing and passivating according to claim 3, characterized in that: The limiting block (20) is located on both sides inside the connecting block (19), and the limiting block (20) is slidably connected to the connecting block (19). The connecting block (19) is located above the door (7).

5. The equipment for boutique steel hot galvanizing and passivating according to claim 2, characterized in that: The surface of the water pipe (10) is L-shaped, one end of the water pipe (10) extends into the interior of the work frame (1), and the water pipe (10) is located on one side of the silicone stirring rack (15). The slide rod (4) is located inside the first connecting plate (3), and the slide rod (4) is slidably connected to the first connecting plate (3).

6. The boutique steel hot galvanizing and passivating apparatus according to claim 1, characterized in that: The second connecting plate (13) is inclined and located below the connecting groove (17), and the second connecting plate (13) is located below the filter plate (12).

7. The hot-dip galvanizing and passivation equipment for high-quality steel according to claim 1, characterized in that: The silicone stirring rack (15) is located inside the working tank (16), and the silicone stirring rack (15) is rotatably connected to the working rack (1).