Steel structure rust removal device

Abstract

This application relates to the technical field of rust removal, and in particular to a rust removal device for steel structures. The device includes a rotating cage in which the steel structure is placed. An acid pickling tank is located below the cage. Two flushing plates are installed on the outer side of the cage, and nozzles are installed on the inner side of each flushing plate. High-pressure water jets are sprayed from the nozzles. The flushing plates intermittently move horizontally to gaps within the cage, flushing the steel structure inside. The cage rotates at fixed intervals and angles, changing the position of the flushed steel structure. This solution, by installing flushing plates on the outer side of the cage and nozzles on these plates, allows the water jets to directly act on the steel structure inside, removing easily treatable rust from the surface. This accelerates the subsequent acid pickling process while reducing solvent consumption and lowering costs.

Description

Technical Field

[0001] This application relates to the technical field of rust removal, and in particular to a rust removal device for steel structures. Background Technology

[0002] There are various existing methods for rust removal from steel structures, including but not limited to power tools (electric angle grinders, pneumatic rust guns), sandblasting, shot blasting, high-pressure water jetting, chemical rust removal, and flame rust removal. These methods are generally effective for specific types of rust, but while they can treat other types, the cost-effectiveness is not high. For example, high-pressure water jetting can directly remove rust from severely corroded surfaces using high-pressure water; chemical rust removal can treat rust that is difficult to remove later, and can also treat rust hidden in crevices. Therefore, combining the two methods yields better results. Therefore, this application provides a rust removal device for steel structures. Utility Model Content

[0003] To address the aforementioned problems, this application provides a steel structure rust removal device.

[0004] This application provides a steel structure rust removal device, including a rotating cage in which the steel structure is placed. An acid pickling tank is set below the cage. Two flushing plates are set on the outside of the cage, and nozzles are set on the inside of the two flushing plates. The nozzles spray high-pressure water jets.

[0005] The flushing plate intermittently moves horizontally to the gaps in the housing cage to flush the steel structure inside; the housing cage rotates at fixed times and angles to change the position of the internal steel structure that is being flushed.

[0006] By installing a flushing plate on the outside of the cage and nozzles on the flushing plate, the water jets from the nozzles directly act on the steel structure inside, treating the rust on the steel structure surface that is easy to handle, thereby accelerating the subsequent pickling process, reducing the consumption of pickling solvent, and lowering costs.

[0007] Preferably, the flushing plate has an arc-shaped structure, and multiple sets of nozzles are provided, each set being adapted to the gap between the cage body and the nozzles.

[0008] Preferably, a support is welded to the top of the pickling tank, and a second hydraulic cylinder is installed on the support. The end of the second hydraulic cylinder is fixedly connected to the outer wall of the flushing plate.

[0009] Preferably, a hanging frame is provided on the outside of the placement cage, and a hydraulic cylinder is provided between the hanging frame and the support, which drives the placement cage to move in the vertical direction.

[0010] Preferably, the cage includes two side plates, the cage body is installed between the two side plates, and the cage body is also movably connected to a movable section.

[0011] Preferably, one of the two side plates is provided with a toothed ring, the outer side of which meshes with a gear, and a motor is mounted on the bracket, which drives the gear to rotate.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] By installing a flushing plate on the outside of the cage and nozzles on the flushing plate, the water jets from the nozzles directly act on the steel structure inside, treating the rust on the steel structure surface that is easy to handle, thereby accelerating the subsequent pickling process, reducing the consumption of pickling solvent, and lowering costs. Attached Figure Description

[0014] Figure 1 It is the isometric drawing in Embodiment 1 of this application;

[0015] Figure 2 This is a structural diagram of the cage in Embodiment 1 of this application;

[0016] Figure 3 This is a structural diagram of the rinsing plate in Embodiment 1 of this application.

[0017] Explanation of reference numerals in the attached drawings: 1. Pickling tank; 2. Support frame; 3. Hanging frame; 4. Placement cage; 41. Cage body; 42. Moving section; 43. Gear ring; 5. Flushing plate; 51. Nozzle; 6. Hydraulic cylinder one; 7. Motor; 8. Gear; 9. Hydraulic cylinder two. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1 - Figure 3 This application will be described in further detail.

[0019] Example 1:

[0020] A rust removal device for steel structures, as described above Figure 1 - Figure 3 The steel structure is placed in the placement cage 4, and an acid pickling tank 1 is set below the placement cage 4. The acid pickling tank 1 can contain 10%-15% hydrochloric acid, which has a strong dissolving ability for iron oxides (Fe3O4, Fe2O3) and a fast reaction rate; it can also contain 15-20% sulfuric acid; or a mixed solution, such as hydrochloric acid and sulfuric acid in a ratio of 7:3, or hydrochloric acid and nitric acid, etc. The specific choice depends on the type of steel to be treated. Two flushing plates 5 are set on the outside of the placement cage 4, and nozzles 51 are set on the inside of the two flushing plates 5. The nozzles 51 spray high-pressure water jets.

[0021] The flushing plate 5 intermittently moves horizontally to the gap in the housing cage 4, flushing the steel structure inside. The housing cage 4 rotates at fixed intervals and angles, changing the position of the internal steel structure being flushed. The steel structure is placed inside the cage through the movable section 42 on the cage body 41. The flushing plate 5 then approaches the housing cage 4, and the water jet from its nozzles 51 passes through the gap in the cage body 41 and acts directly on the steel structure, washing away the rust that is easy to rinse. After spraying for a period of time, the motor 7 drives the cage body 41 to rotate 30-45°, at which point the internal steel structure also flips slightly, and is flushed again. Then it rotates again and is flushed again, until it has rotated completely twice, at which point the flushing stops. Subsequent pickling is then carried out.

[0022] An electrically controlled drainage trough is installed above the pickling tank 1. During the rinsing process, it is positioned below the cage body 41 and above the pickling tank 1 to prevent the sprayed water from adversely affecting the pickling tank 1 below.

[0023] By setting a flushing plate 5 on the outside of the mounting cage 4 and setting nozzles 51 on the flushing plate 5, the water jet from the nozzles 51 directly acts on the steel structure inside, treating the rust on the surface of the steel structure, thereby accelerating the subsequent pickling speed, reducing the consumption of subsequent pickling solvent, and lowering costs.

[0024] The flushing plate 5 has an arc-shaped structure, and multiple sets of nozzles 51 are provided. Each set is adapted to the gap of the cage body 41. Each set of nozzles 51 has multiple nozzles. The water flow sprayed by multiple nozzles 51 covers the axial length of the cage body 41 as much as possible, so as to ensure the flushing effect. The position of the nozzles 51 is the same as the direction of the gap of the cage body 41, so as to ensure that the high-pressure water flow can flow into the interior of the cage body 41.

[0025] A bracket 2 is welded to the top of the pickling tank 1. A hydraulic cylinder 9 is installed on the bracket 2. The end of the hydraulic cylinder 9 is fixedly connected to the outer wall of the flushing plate 5. The hydraulic cylinder 9 is set parallel to the diameter of the cage body 41 to ensure the stable transmission of the flushing plate 5 in the horizontal direction.

[0026] A hanging bracket 3 is installed on the outside of the placement cage 4. A hydraulic cylinder 6 is installed between the hanging bracket 3 and the support 2. The hydraulic cylinder 6 drives the placement cage 4 to move in the vertical direction.

[0027] The placement cage 4 includes two side plates, and the cage body 41 is installed between the two side plates. The cage body 41 is also movably connected to the movable section 42.

[0028] One of the two side plates is equipped with a toothed ring 43, with a gear 8 meshing on the outer side of the toothed ring 43. A motor 7 is installed on the bracket 2, and the motor 7 drives the gear 8 to rotate. The motor 7 is controlled by an external control structure to perform intermittent fixed-angle rotation. The motor 7 drives the toothed ring 43 to rotate through the gear 8, which in turn causes the cage 4 to rotate at a fixed angle.

[0029] The foregoing description of an exemplary embodiment of a steel structure rust removal device provided by this disclosure refers to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, which is determined by the appended claims.

Claims

1. A steel structure rust removal device, comprising a rotating mounting cage (4), a steel structure placed in the mounting cage (4), and an acid pickling tank (1) disposed below the mounting cage (4), characterized in that: Two flushing plates (5) are provided on the outside of the placement cage (4), and nozzles (51) are provided on the inside of the two flushing plates (5). The nozzles (51) spray high-pressure water. The flushing plate (5) is intermittently horizontally displaced to the gap position of the housing cage (4) to flush the steel structure inside; the housing cage (4) rotates at a fixed time and angle to change the position of the internal steel structure being flushed.

2. The steel structure rust removal device according to claim 1, characterized in that: The flushing plate (5) has an arc-shaped structure, and multiple sets of nozzles (51) are provided, each set being adapted to the gap between the cage body (41).

3. The steel structure rust removal device according to claim 2, characterized in that: A bracket (2) is welded to the top of the pickling tank (1), and a hydraulic cylinder (9) is installed on the bracket (2). The end of the hydraulic cylinder (9) is fixedly connected to the outer wall of the flushing plate (5).

4. The steel structure rust removal device according to claim 2, characterized in that: A hanging frame (3) is provided on the outside of the placement cage (4), and a hydraulic cylinder (6) is provided between the hanging frame (3) and the support (2). The hydraulic cylinder (6) drives the placement cage (4) to move in the vertical direction.

5. The steel structure rust removal device according to claim 4, characterized in that: The placement cage (4) includes two side plates, and the cage body (41) is installed between the two side plates. The cage body (41) is also movably connected to the movable section (42).

6. The steel structure rust removal device according to claim 5, characterized in that: A toothed ring (43) is provided on one of the two side plates, and a gear (8) meshes with the outer side of the toothed ring (43). A motor (7) is installed on the bracket (2), and the motor (7) drives the gear (8) to rotate.

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