Pipeline outer wall rust removal device

Abstract

The utility model discloses a pipeline outer wall rust removal device, and relates to the technical field of steel pipe rust removal, the pipeline outer wall rust removal device comprises an abrasive material circulating assembly, a sand blasting machine, a rust removal bin and a walking rotating part, a plurality of driving wheels driven by a third motor are arranged on a bottom plate of the walking rotating part, the abrasive material circulating assembly comprises a vertically arranged conveying belt, and the conveying belt is connected to a second motor; the flange reinforcing rib steel pipe rust removal device has the technical advantages that the flange reinforcing rib steel pipe is pushed into the rust removal bin through the walking rotating part, and the flange reinforcing rib steel pipe is driven by the sand blasting machine and the walking rotating part to rotate; therefore, full-automatic section-by-section circumferential derusting operation of the flange reinforcing rib steel pipe is realized; the auxiliary chambers with the sealing rubber curtains are arranged at the two ends of the shot blasting chamber, so that opening of the shot blasting chamber caused by the fact that the front end and the rear end of the flange reinforcing rib steel pipe penetrate out of the shot blasting chamber during section-by-section sand blasting and grinding is prevented, and blasting sand is prevented from leaking out of the shot blasting chamber.

Description

Technical Field

[0001] The present application relates to the technical field of steel pipe rust removal, and in particular to a device for removing rust from the outer wall of a pipeline. Background Art

[0002] Infrastructure construction in complex mountainous environments, especially culvert construction, faces numerous natural challenges, particularly rugged terrain and inaccessible access. Flange-reinforced steel pipes have emerged as a key design solution for these challenging conditions. This design not only addresses the challenges of material transportation but also enhances the safety and stability of the structure. The unique characteristics of mountainous terrain make transporting long materials difficult, making it difficult to transport conventional steel pipes directly to the construction site. Therefore, short-length steel pipes (e.g., 3 meters) have become a common choice for transportation in mountainous areas, particularly for tunnel construction and culvert construction in water conservancy projects. These projects often require traversing complex geology, placing extremely high demands on pipe strength and flexibility, which flange-reinforced steel pipes meet. Flange-reinforced steel pipes, with their reinforced ribs added to the pipe wall, significantly increase the pipe's circumferential and axial strength, enabling it to withstand higher internal and external pressures, making them particularly suitable for environments subject to mountain pressure and water pressure. Furthermore, its short design facilitates transportation in mountainous areas, allows for on-site splicing and docking, and allows for flexible adaptation to various complex terrains and cave sizes, significantly improving construction efficiency and reducing the difficulty of mountain operations. Flange-reinforced steel pipes are frequently used in mountainous water conservancy projects, such as water diversion, irrigation, and flood control facilities. They ensure the stability and durability of the projects while overcoming the inconvenience of mountain transportation, demonstrating the adaptability and innovation of modern engineering technology in complex environments.

[0003] Traditional steel pipe outer wall rust removal devices are mostly designed for standard-sized, continuous steel pipes without internal reinforcement structures. The steel pipe rotates through the rust removal chamber, and the pipe body can be rusted evenly 360°. When flange reinforced steel pipes need to be rusted, conventional spiral transmission cannot transport such flange steel pipes, and rust cannot be removed evenly 360°. Therefore, there is an urgent need for a device that can cope with rust removal operations on flange reinforced steel pipes. Utility Model Content

[0004] This device provides a device for removing rust from the outer wall of a pipeline. The specific implementation is as follows:

[0005] A device for removing rust from the outer wall of a pipeline, comprising:

[0006] A rust removal bin and a traveling rotating unit for feeding the steel pipe into the rust removal bin; a plurality of driving wheels driven by a third motor are provided on the bottom plate of the traveling rotating unit; the driving wheels are respectively arranged to abut against both sides of the circumference of the steel pipe to drive it to rotate circumferentially;

[0007] The abrasive circulation component and the sandblasting machine are arranged in the rust removal chamber. The abrasive circulation component includes a vertically arranged conveyor belt, the conveyor belt is connected to the second motor, and the outer peripheral surface of the conveyor belt is equidistantly arranged along its ring with feeding plates for carrying and recovering bottom sandblasting residues.

[0008] Based on the above technical solution, the flange reinforcement steel pipe is precisely guided and steadily pushed into a special rust removal chamber through the walking and rotating part, and the sandblasting machine is activated, which works in conjunction with the walking and rotating part on the surface of the steel pipe; the sandblasting machine sprays high-speed abrasives to impact the rust on the surface of the steel pipe, while the walking and rotating part synchronously drives the steel pipe to rotate, ensuring that every corner of the flange reinforcement part is evenly covered by the abrasive; not only does it ensure the comprehensiveness of the reinforcement steel pipe in the rust removal process, but the automated operation also greatly improves the operating efficiency and reduces manpower requirements and operational risks.

[0009] Preferably, the rust removal chamber is divided into a sub-chamber, a shot blasting chamber and a sub-chamber in sequence along its length, and the sub-chamber is provided with a plurality of sealing rubber curtains along its length to prevent sandblasting from splashing out.

[0010] Based on the above technical solutions, an innovative closed shot blasting room is adopted to improve operating efficiency and environmental safety. Sub-chambers are configured at both ends of the shot blasting room. The sub-chambers are equipped with flexible sealing rubber curtains to solve the problem of the flange reinforcement steel pipe being opened when the front and rear ends of the steel pipe enter and exit the shot blasting room during the sandblasting and grinding operation in sections. It effectively prevents the direct communication between the indoor and outdoor environments of the shot blasting room, and greatly reduces the dust leakage during the shot blasting operation.

[0011] Preferably, a cleaning chamber is provided at the bottom of the shot blasting chamber, the cleaning chamber is lower than the ground, and the feeding plate at the bottom of the conveyor belt extends into the cleaning chamber.

[0012] Based on the above technical solution, the secondary recycling of sandblasting debris is achieved by setting up a cleaning chamber and an abrasive circulation component.

[0013] Preferably, it also includes a conveying assembly installed on the ground, which includes a guide rail that transversely passes through the two chambers and the shot blasting chamber, and the guide rail is slidably connected to the casters installed on the bottom plate.

[0014] Preferably, the linear motion driving structure between the conveying assembly and the traveling rotating part has two forms, namely:

[0015] First, the conveying assembly also includes a chain and a sprocket arranged along the guide rail, which are connected to the output end of the first motor, and any point of the chain is connected to the base plate.

[0016] Secondly, a fourth motor is integrated on the bottom plate, and an output end of the fourth motor is connected to the caster through a chain.

[0017] Preferably, the third motor and the driving wheel are driven by an off-axis gear structure.

[0018] Preferably, the top surface of the bottom plate is configured as an inclined structure that is less likely to accumulate sandblasting residues.

[0019] Preferably, a dust collector is further included, the suction end of which is connected to the side of each sub-chamber through a three-way conduit.

[0020] Based on the above technical solution, in addition to optimizing the design of the closed shot blasting chamber, a high-efficiency dust collector is added to the sub-chamber. When the flange reinforcement steel pipe is sandblasted and polished section by section, some sand slag is introduced into the sub-chamber and cleaned by the dust collector to avoid accumulation and secondary pollution.

[0021] In summary, this application has the following beneficial technical effects:

[0022] 1. This utility model pushes the flange reinforcement steel pipe into the rust removal chamber through the traveling rotating part, and uses the sandblasting machine and the traveling rotating part to drive the flange reinforcement steel pipe to rotate, thereby realizing the fully automated section-by-section circumferential rust removal operation of the flange reinforcement steel pipe;

[0023] 2. The utility model has a simple structure. By arranging sub-chambers with a plurality of sealing rubber curtains at both ends of the shot blasting chamber, the front and rear ends of the flange reinforcement steel pipe are prevented from passing through the shot blasting chamber during the section-by-section sandblasting, thereby preventing the shot blasting chamber from being opened and the sand from leaking out of the shot blasting chamber.

[0024] 3. The utility model realizes the secondary recycling of sandblasting debris by providing a cleaning chamber and an abrasive circulation component. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of a steel pipe;

[0026] Figure 2 It is a side view structural diagram of the utility model;

[0027] Figure 3 This utility model Figure 2 Enlargement of the middle structure Figure 1 ;

[0028] Figure 4 This utility model Figure 2 Enlargement of the middle structure Figure 2 ;

[0029] Figure 5 It is a cross-sectional schematic diagram of the top view structure of the utility model;

[0030] Figure 6 This utility model Figure 5 A magnified view of the middle structure.

[0031] Description of reference numerals:

[0032] 1. Steel pipe, 2. Conveying assembly, 3. Traveling and rotating part, 4. Rust removal chamber, 5. Sandblasting machine, 6. Abrasive circulation assembly, 7. Conduit, 8. Dust collector, 10. Ground,

[0033] 101. Reinforcement rib, 201. First motor, 202. Chain, 203. Guide rail, 301. Bottom plate, 302. Caster, 303. Third motor, 304. Driving wheel, 305. Fourth motor, 306. Gear structure, 401. Sub-chamber, 402. Shot blasting chamber, 403. Sealing rubber curtain, 404. Cleaning chamber, 601. Second motor belt, 602. Conveyor belt, 603. Feed plate. DETAILED DESCRIPTION

[0034] The following describes the specific implementation of the utility model with reference to the accompanying drawings and embodiments:

[0035] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present utility model. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this utility model without affecting the efficacy and purpose that can be achieved by the present utility model.

[0036] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0037] The following is combined with Figure 1-6 This application is described in further detail.

[0038] The embodiment of the present application discloses a device for removing rust from the outer wall of a pipeline. Example 1

[0039] Reference Figures 1 to 6, This embodiment discloses a rust removal device for the outer wall of a pipeline, comprising a dust collector 8, a walking and rotating part 3, a rust removal bin 4 and a sandblasting machine 5 arranged in the rust removal bin 4. A plurality of driving wheels 304 driven by a third motor 303 are provided on the bottom plate 301 of the walking and rotating part 3. The driving wheels 304 are respectively arranged to abut against both sides of the circumference of the steel pipe 1 for driving it to rotate circumferentially. The present structure also includes a conveying assembly 2 installed on the ground 10, which includes a guide rail 203 that transversely passes through the two sub-chambers 401 and the shot blasting chamber 402. The third motor 303 and the driving wheel 304 are driven by a gear structure 306. The guide rail 203 is slidably connected to the caster 302. The suction end of the dust collector 8 is respectively connected to the side of each sub-chamber 401 through a three-way conduit 7. The top surface of the bottom plate 301 is set to an inclined structure that is not easy to accumulate sandblasting residues.

[0040] The rust removal chamber 4 is divided into a mutually connected sub-chamber 401, a shot blasting chamber 402 and a sub-chamber 401 in sequence along its length. A plurality of sealing rubber curtains 403 are provided in the sub-chamber 401 along its length to prevent sand blasting from splashing out.

[0041] The specific implementation process is: place the steel pipe 1 horizontally on the walking rotating part 3, with both sides respectively abutting against the driving wheels 304; the sandblasting machine 5 is turned on, and the walking rotating part 3 enters the rust removal bin 4; during this period, the third motor 303 drives the driving wheels 304 to rotate through the gear structure 306, and each driving wheel 304 causes the steel pipe 1 to rotate circumferentially; after the head of the steel pipe 1 enters the shot blasting chamber 402, the outer wall is sandblasted and polished, and as its tail enters, its head will be transmitted out and enter the sub-chamber 401; under the action of multiple sealing rubber curtains 403, the steel pipe 1 pushes open the front sealing rubber curtain 403, and the rear sealing rubber curtain 403 makes the shot blasting chamber 402 still in a sealed state, and the sand and shot will not leak out of the shot blasting chamber 402. Example 2

[0042] Reference Figure 1 and Figure 4 , and based on Example 1, this embodiment further provides a rust removal device for the outer wall of a pipeline, which also includes an abrasive circulation component 6, a conveyor belt 602 connected to a second motor 601, and the outer peripheral surface of the conveyor belt 602 is equidistantly arranged along its annular surface with feeding plates 603 for carrying and recovering the bottom sandblasting residue. In this structure, a cleaning chamber 404 is correspondingly provided at the bottom of the shot blasting chamber 402, and the cleaning chamber 404 is lower than the height of the ground 10. The feeding plate 603 at the bottom of the conveyor belt 602 extends into the cleaning chamber 404, and the conveyor belt 602 is driven to rotate by the second motor 601, and the feeding plate 603 is used to realize the return of the sandblasting residue to the material box of the sandblasting machine 5. Example 3

[0043] Reference Figure 1 and Figure 3Based on the above embodiment, this embodiment further provides a device for removing rust from the outer wall of a pipeline. The conveying assembly 2 also includes a chain 202 and a sprocket arranged along the guide rail 203, which are connected to the output end of the first motor 201, and any point of the chain 202 is connected to the bottom plate 301. In this structure, the first motor 201 utilizes the chain 202 and the sprocket to provide a driving force for the walking rotating part 3 to move straight. Example 4

[0044] Reference Figure 1 and Figure 6 , and based on Example 1 and Example 2, this embodiment further provides a device for removing rust from the outer wall of a pipeline, wherein a fourth motor 305 is integrated on the base plate 301, and the output end of the fourth motor 305 is connected to the caster 302 through a chain. In this structure, the fourth motor 305 provides driving force for the walking rotating part 3 to move straight.

[0045] Many other changes and modifications can be made without departing from the concept and scope of the present invention. It should be understood that the present invention is not limited to specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A device for removing rust from the outer wall of a pipeline, characterized in that: include: A rust removal bin (4) and a walking rotating part (3) for feeding a steel pipe (1) into the rust removal bin (4); a bottom plate (301) of the walking rotating part (3) is provided with a plurality of driving wheels (304) driven by a third motor (303); the driving wheels (304) are respectively arranged to abut against both circumferential sides of the steel pipe (1) for driving the steel pipe (1) to rotate circumferentially; An abrasive circulation assembly (6) and a sandblasting machine (5) arranged in the rust removal chamber (4), wherein the abrasive circulation assembly (6) comprises a vertically arranged conveyor belt (602), the conveyor belt (602) being connected to a second motor (601), and a feeding plate (603) for carrying and recovering bottom sandblasting residues being arranged equidistantly along the outer peripheral surface of the conveyor belt (602).

2. A pipeline outer wall rust removal device according to claim 1, characterized in that: The rust removal chamber (4) is divided into a mutually connected sub-chamber (401), a shot blasting chamber (402) and a sub-chamber (401) in sequence along its length direction. The sub-chamber (401) is provided with multiple sealing rubber curtains (403) along its length direction to prevent sand blasting from splashing out.

3. A pipeline outer wall rust removal device according to claim 2, characterized in that: A cleaning chamber (404) is correspondingly provided at the bottom of the shot blasting chamber (402). The cleaning chamber (404) is lower than the height of the ground (10). The feeding plate (603) at the bottom of the conveyor belt (602) extends into the cleaning chamber (404).

4. A pipeline outer wall rust removal device according to claim 2, characterized in that: It also includes a conveying assembly (2) installed on the ground (10), which includes a guide rail (203) that transversely passes through the two sub-chambers (401) and the shot blasting chamber (402), and the guide rail (203) is slidably connected to the caster (302) installed on the base plate (301).

5. A pipeline outer wall rust removal device according to claim 4, characterized in that: The conveying assembly (2) further comprises a chain (202) and a sprocket arranged along the guide rail (203), which are connected to the output end of the first motor (201) through transmission, and any point of the chain (202) is connected to the base plate (301).

6. A pipeline outer wall rust removal device according to claim 4, characterized in that: A fourth motor (305) is integrated on the base plate (301), and an output end of the fourth motor (305) is connected to the caster (302) via a chain.

7. The device for removing rust from the outer wall of a pipeline according to claim 1, characterized in that: The third motor (303) and the driving wheel (304) are driven by an off-axis gear structure (306).

8. The device for removing rust from the outer wall of a pipeline according to claim 1, characterized in that: The top surface of the bottom plate (301) is configured as an inclined surface structure that is not prone to accumulation of sandblasting residues.

9. The device for removing rust from the outer wall of a pipeline according to claim 1, characterized in that: It also includes a dust remover (8), the suction end of which is connected to the side of each sub-chamber (401) through a three-way conduit (7).

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