Anti-corrosion coating spraying device for power station boiler steel structure

The problem of paint contamination caused by roller conveyors was solved by using a suspended circulating conveyor, enabling efficient spraying and drying of the steel structure of the power plant boiler, improving the anti-corrosion effect and reducing operating costs.

CN223543296UActive Publication Date: 2025-11-14QINGDAO SANLIAN METAL STRUCTURE
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Patent Information

Application Number
CN202422828753.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-11-14
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

Traditional roller conveyors are prone to causing paint contamination during the spraying of steel structures in power plant boilers, affecting the uniformity and integrity of the paint, increasing cleaning and maintenance costs, and potentially reducing production efficiency.

Method used

A suspended circulating conveyor is used instead of a roller conveyor. C-shaped steel is suspended in the air by steel cables and suspension frames. The integrated spraying and drying machine achieves fast and stable circulating conveying, ensuring the integrity and uniformity of the coating.

Benefits of technology

It improves spraying efficiency, ensures full drying and curing of coatings, reduces cleaning and maintenance costs of conveying equipment, reduces safety risks, and enhances corrosion protection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an anticorrosive coating spraying device for a power station boiler steel structure, which comprises a spraying and drying integrated machine, supporting vertical plates, a suspension circulating conveyor and a spraying interface, the suspension circulating conveyor is fixedly arranged above the two supporting vertical plates which are fixedly arranged on the spraying and drying integrated machine in a mirror symmetry way; each supporting vertical plate is provided with a spraying connector, and the spraying connectors are connected with spraying pressurizing equipment; according to the utility model, the suspension circulating conveyor is adopted to replace a traditional roller conveyor, so that multiple remarkable advantages are brought. The C-shaped steel is suspended in the air through the steel cable and the suspension bracket, so that conveying equipment is prevented from being contaminated by coating, and completeness and uniformity of the coating are guaranteed. According to the design, rapid and stable circulating conveying of the C-shaped steel in the spraying and drying integrated machine is achieved, and the spraying efficiency and the anti-corrosion effect are improved. And meanwhile, the direct contact between the personnel and the coating and equipment is reduced through the suspended circulating conveyor, and the operation safety risk is remarkably reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of steel structure spraying technology, and in particular relates to an anti-corrosion coating spraying device for steel structures of power plant boilers. Background Technology

[0002] In the corrosion protection process of power plant boiler steel structures, spraying an anti-corrosion coating is a crucial step. Traditionally, this step usually relies on roller conveyors to transport the C-shaped steel to be coated. However, this method has a significant problem: the coating on the steel structure surface is very easy to adhere to the conveyor rollers during transport. This not only affects the uniformity and integrity of the coating, resulting in a significant reduction in the anti-corrosion effect, but also increases the cleaning and maintenance costs of the conveyor rollers. In addition, the roller conveyor may experience operational difficulties due to coating adhesion during the spraying process, thereby affecting production efficiency.

[0003] Therefore, it is essential to invent a corrosion-resistant coating spraying device for the steel structure of a power plant boiler. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an anti-corrosion coating spraying device for steel structures of power plant boilers, including an integrated spraying and drying machine, support plates, a suspended circulating conveyor, and a spraying interface. The two support plates on the integrated spraying and drying machine are fixedly installed above the suspended circulating conveyor. Each support plate is equipped with a spraying interface, which is connected to a spraying pressurization device.

[0005] Preferably, the suspended circulating conveyor includes a top plate, guide wheels, drive discs, steel cables, and drive components. The top plate is fixed to two support plates respectively. A plurality of guide wheels are rotatably mounted on the lower surface of the top plate, and two mirror-symmetrical drive discs are located at the lower ends of the top plate. The steel cables are assembled on the drive discs and guide wheels, and one of the drive discs is fixed to the output end of a drive component fixedly mounted above the top plate.

[0006] Preferably, the steel cable is mounted on a suspension frame via a clamp sleeve. There are six sets of suspension frames, two per set. The clamp sleeve on the steel cable allows for smooth transitional transport on the drive disc and guide wheel.

[0007] Preferably, each of the suspension frames is provided with several vertically distributed hooks, and each group of suspension frames suspends the C-shaped steel through its own hooks.

[0008] Preferably, the C-shaped steel and the suspension frame allow for unobstructed transport between the support plate and the partition of the integrated spray drying machine.

[0009] Preferably, the integrated spraying and drying machine further includes a base, a drying fan, and a spraying plate. A partition is fixedly installed in the middle of the upper part of the base, and the upper end of the partition is in sealed contact with the lower surface of the top plate. Several drying fans and spraying plates are fixedly installed on the inner surface of each supporting plate and on the surface of the partition.

[0010] Preferably, the drying fan and the spraying plate installed on the supporting upright plate and the partition plate are arranged correspondingly to each other, and the area where the spraying plate is located is the spraying area; the area where the drying fan is located is the drying area.

[0011] Preferably, a plurality of spray heads are vertically distributed on the spray plate, and all of the spray plates are connected to the spray pipes built into the supporting upright plate, and the spray pipes built into the supporting upright plate are connected to the spray pipes.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention achieves multiple significant benefits by replacing the traditional roller conveyor with a suspended circulating conveyor. First, the suspended circulating conveyor suspends the C-shaped steel in the air using steel cables and suspension frames, effectively preventing paint from contaminating the conveying equipment during transport and ensuring the integrity and uniformity of the paint. Second, this design allows the C-shaped steel to be rapidly and smoothly circulated within the integrated spraying and drying machine, improving spraying efficiency and ensuring thorough drying and curing of the paint, further enhancing its anti-corrosion effect. Furthermore, preventing paint contamination of the conveying equipment significantly reduces cleaning and maintenance costs. The suspended circulating conveyor's simple structure and ease of maintenance further reduce overall operating costs. Finally, the use of the suspended circulating conveyor reduces direct contact between personnel and the paint and conveying equipment, lowering safety risks during operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a structural schematic diagram of the integrated spraying and drying machine of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the suspended circulating conveyor of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the suspended circulating conveyor with C-shaped steel.

[0018] In the picture:

[0019] 1. Spraying and drying integrated machine, base, partition, air drying fan, spraying plate, support plate, suspended circulating conveyor, top plate, guide wheel, drive disc, steel cable, drive component, clamp sleeve, suspension frame, spraying interface, C-shaped steel, etc. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0021] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0022] As attached Figure 1 To be continued Figure 4 As shown:

[0023] This utility model provides an anti-corrosion coating spraying device for the steel structure of a power plant boiler, including an integrated spraying and drying machine 1, a support plate 2, a suspended circulating conveyor 3, and a spraying interface 4. The two support plates 2 are fixedly installed on the integrated spraying and drying machine 1 in a mirror-symmetrical manner, and the suspended circulating conveyor 3 is fixedly installed above them. Each support plate 2 is equipped with a spraying interface 4, which is connected to a spraying pressurization device.

[0024] Furthermore, the suspended circulating conveyor 3 includes a top plate 31, guide wheels 32, drive discs 33, steel cables 34, and a drive component 35. The top plate 31 is securely connected to two supporting uprights 2. Multiple guide wheels 32 and two mirror-symmetrically arranged drive discs 33 are rotatably mounted on the lower surface of the top plate 31. These two drive discs 33 are located at the lower ends of the top plate 31. The steel cables 34 are cleverly fitted onto the drive discs 33 and guide wheels 32, forming a circulating conveying path. One drive disc 33 is tightly connected to the output end of the drive component 35 fixedly mounted above the top plate 31, providing power for the entire conveying process.

[0025] Furthermore, suspension brackets 37 are mounted on the steel cable 34 via clamp sleeves 36. There are six sets of these suspension brackets 37, each containing two, ensuring the stability and load-bearing capacity of the conveying mechanism. The design of the clamp sleeves 36 allows the suspension brackets 37 to smoothly transition between the drive disc 33 and the guide wheel 32, thereby achieving continuous and stable conveying of the C-shaped steel 5.

[0026] Furthermore, each suspension bracket 37 is equipped with several vertically distributed hooks. These hooks are used to securely suspend the C-shaped steel 5 on the suspension bracket 37. Each set of suspension brackets 37 can easily suspend the C-shaped steel 5 through its own hooks, which facilitates the subsequent spraying and drying process.

[0027] Furthermore, the design of the C-shaped steel 5 and the suspension bracket 37 allows them to be transported unimpeded between the support plate 2 and the partition plate 12 of the integrated spraying and drying machine 1. This design ensures that the C-shaped steel 5 maintains a stable transport state during spraying and drying, avoiding spraying quality problems caused by poor transport.

[0028] Furthermore, the integrated spraying and drying machine 1 also includes a base 11, drying fans 13, and spraying plates 14. A partition 12 is fixedly installed in the middle of the upper part of the base 11, and the upper end of the partition 12 is in sealed contact with the lower surface of the top plate 31, forming a relatively enclosed spraying and drying environment. Multiple drying fans 13 and spraying plates 14 are fixedly installed on the inner surface of the supporting upright plate 2 and on the surface of the partition 12. These drying fans 13 and spraying plates 14 are arranged correspondingly to each other to ensure the coordinated operation of the spraying and drying processes.

[0029] Furthermore, the ingenious design of the partition 12 creates two independent integrated spraying and drying zones for the integrated spraying and drying machine 1. The C-shaped steel 5 can be flexibly positioned within these zones according to actual needs. When the C-shaped steel 5 first enters the first integrated spraying and drying zone, it undergoes spraying followed by drying. If it enters the second zone, the process is reversed: it is first dried to remove surface impurities before spraying. It is noteworthy that the C-shaped steel 5 cannot pass through both integrated spraying and drying zones simultaneously without being disassembled, ensuring that each zone can independently and efficiently complete its specific spraying and drying tasks.

[0030] Furthermore, the area where the drying fan 13 is located is designed as a drying zone for rapidly drying the coated C-shaped steel 5. The area where the coating plate 14 is located is the coating zone for uniformly coating the C-shaped steel 5. Multiple spray heads are vertically distributed on the coating plate 14, and these spray heads are all connected to the coating pipes built into the supporting plate 2. The coating pipes built into the supporting plate 2 are in turn connected to external coating pipes, providing a stable supply of coating material for the coating process.

[0031] The working principle is as follows: First, the C-shaped steel 5 is securely suspended on the suspension frame 37 of the suspended circulating conveyor 3. The suspension frame 37 is connected to the steel cable 34 through the clamp sleeve 36, and the steel cable 34 is cleverly assembled on the drive disc 33 and the guide wheel 32, forming a circulating conveying path. After the drive component 35 is started, it drives a drive disc 33 to rotate, thereby driving the steel cable 34 and the suspension frame 37 to move in a fixed direction.

[0032] Then, as the suspension frame 37 moves, the C-shaped steel 5 is fed into the integrated spraying and drying machine 1. The C-shaped steel 5 first passes through the spraying area where the spraying plate 14 is located. Multiple vertically distributed spray heads on the spraying plate 14 begin to work, evenly spraying paint onto the surface of the C-shaped steel 5. These spray heads are all connected to the spraying pipes built into the supporting upright plate 2, ensuring the stability and continuity of paint supply.

[0033] After the coating is completed, the C-shaped steel 5 continues to move into the drying area where the drying fan 13 is located. The high-speed airflow generated by the drying fan 13 quickly dries the coating on the surface of the C-shaped steel 5, ensuring the coating adheres firmly and achieves its anti-corrosion effect.

[0034] It is worth noting that throughout the entire conveying and spraying process, the C-shaped steel 5 and the suspension frame 37 maintain an unobstructed conveying state between the supporting upright plate 2 and the partition plate 12 of the integrated spraying and drying machine 1. This design not only ensures the stable conveying of the C-shaped steel 5, but also avoids spraying quality problems caused by poor conveying.

[0035] Finally, after C-shaped steel 5 has completed its processing, it will continue along the moving path of steel cable 34. Depending on actual needs, it can choose whether to enter the second integrated spraying and drying area for further processing. However, C-shaped steel 5 cannot pass through both areas simultaneously without being disassembled, ensuring that each area can independently and efficiently complete its specific spraying and drying tasks.

[0036] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A device for spraying an anti-corrosion coating on a steel structure of a power plant boiler, characterized in that, The equipment includes a spray-drying integrated machine (1), a support plate (2), a suspended circulating conveyor (3), and a spraying interface (4). The two support plates (2) on the spray-drying integrated machine (1) are fixedly installed in a mirror image. The suspended circulating conveyor (3) is fixedly installed above them. Each support plate (2) is equipped with a spraying interface (4), which is connected to a spraying pressurization device.

2. The anti-corrosion coating spraying device for a power plant boiler steel structure as described in claim 1, characterized in that: The suspended circulating conveyor (3) includes a top plate (31), guide wheels (32), drive discs (33), steel cables (34), and drive components (35). The top plate (31) is fixed to two support plates (2) respectively. Several guide wheels (32) are rotatably mounted on the lower surface of the top plate (31), as well as two mirror-symmetrical drive discs (33). The drive discs (33) are located at both ends below the top plate (31). The steel cables (34) are mounted on the drive discs (33) and guide wheels (32). One of the drive discs (33) is fixed to the output end of the drive component (35) fixed above the top plate (31).

3. The anti-corrosion coating spraying device for a power plant boiler steel structure as described in claim 2, characterized in that: The steel cable (34) is equipped with a suspension frame (37) via a clamp sleeve (36). There are six sets of suspension frames (37), two in a set. The clamp sleeve (36) on the steel cable (34) allows for smooth transition transport on the drive disc (33) and guide wheel (32).

4. The anti-corrosion coating spraying device for a power plant boiler steel structure as described in claim 3, characterized in that: Each of the suspension brackets (37) is provided with several vertically distributed hooks, and each set of suspension brackets (37) suspends the C-shaped steel (5) through its own hooks.

5. The anti-corrosion coating spraying device for a power plant boiler steel structure as described in claim 4, characterized in that: The C-shaped steel (5) and the suspension bracket (37) allow unobstructed transport between the support plate (2) and the partition (12) of the spray drying machine (1).

6. The anti-corrosion coating spraying device for a power plant boiler steel structure as described in claim 5, characterized in that: The integrated spraying and drying machine (1) also includes a base (11), a drying fan (13) and a spraying plate (14). A partition (12) is fixedly installed in the middle of the upper part of the base (11). The upper end of the partition (12) is in sealed contact with the lower surface of the top plate (31). Several drying fans (13) and spraying plates (14) are fixedly installed on the inner surface of each support plate (2) and the surface of the partition (12).

7. The anti-corrosion coating spraying device for a power plant boiler steel structure as described in claim 6, characterized in that: The drying fan (13) and the spraying plate (14) installed on the support plate (2) and the partition plate (12) are arranged in a corresponding manner. The area where the spraying plate (14) is located is the spraying area; the area where the drying fan (13) is located is the drying area.

8. The anti-corrosion coating spraying device for a power plant boiler steel structure as described in claim 7, characterized in that: Several spray heads are vertically distributed on the spray plate (14), and several spray plates (14) are connected to the spray pipes built into the support plate (2). The spray pipes built into the support plate (2) are connected to the spray pipes.