A high-efficiency energy-saving steel pipe inner rust removal equipment

By designing an adjustable cleaning plate and dust collection system, this high-efficiency and energy-saving steel pipe internal rust removal equipment solves the problems of high energy consumption and limited applicability of existing equipment. It achieves efficient and environmentally friendly steel pipe internal rust removal, adapts to the rust removal needs of steel pipes of different specifications, and improves processing efficiency and safety.

CN224310317UActive Publication Date: 2026-06-02QINGDAO DACANG CORROSION PREVENTION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO DACANG CORROSION PREVENTION CO LTD
Filing Date
2025-06-19
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing steel pipe internal rust removal equipment suffers from high energy consumption, limited applicability, and inability to meet the high-efficiency rust removal needs of steel pipes of different specifications. It also causes environmental pollution and is inconvenient to operate.

Method used

A highly efficient and energy-saving steel pipe internal rust removal device was designed. Through an adjustable cleaning plate and dust collection system, it can adapt to steel pipes of different diameters and lengths. Combined with automated rust removal and dust treatment, it achieves efficient and environmentally friendly internal rust removal.

Benefits of technology

It improves the versatility and practicality of the equipment, reduces production costs, reduces environmental pollution, increases processing efficiency, and ensures operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a high-efficiency and energy-saving steel pipe internal rust removal device, relating to the field of steel pipe rust removal technology. It solves the problems of existing rust removal equipment, such as high energy consumption, limited applicability, and inability to meet the high-efficiency rust removal needs of steel pipes of different specifications, and its low applicability. The high-efficiency and energy-saving steel pipe internal rust removal device includes: a base plate; the base plate adopts a rectangular plate structure; a slide rail is fixedly installed on the top front side of the base plate; a U-shaped block structure slider is slidably installed on one side of the slide rail; a cylindrical connecting rod is rotatably connected to the front side of the slider; eight sets of first outer rods are rotatably connected in a circular array on the outer side of the connecting rods; a set of rectangular plate structure cleaning plates is fixedly connected to the outer side of every two sets of first outer rods, and the outer wall of the cleaning plate is equipped with a wire brush; this greatly improves the versatility of the device, reduces production costs, and increases production efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of steel pipe rust removal technology, and more specifically, it relates to a high-efficiency and energy-saving steel pipe internal rust removal device. Background Technology

[0002] In modern industry, steel pipes are widely used in many sectors such as oil and natural gas transportation, building structure support, and machinery manufacturing. However, during the production, storage, and transportation of steel pipes, their inner walls are prone to rust due to environmental factors such as oxidation and moisture. Rust not only reduces the strength and corrosion resistance of steel pipes, affecting the sealing and service life of pipelines, but may also peel off during fluid transportation, causing pipeline blockage or equipment damage.

[0003] Current steel pipe internal rust removal equipment still has the following shortcomings:

[0004] Currently, common methods for removing rust from the inside of steel pipes include chemical pickling, manual grinding, shot blasting, and high-pressure water jet rust removal. While chemical pickling is highly efficient, it generates large amounts of acid and alkali waste liquid, polluting the environment, and requires complex neutralization and rinsing afterward. Manual grinding is labor-intensive, inefficient, and struggles to ensure uniform rust removal. Shot blasting equipment is bulky and noisy, and its effectiveness is poor for small-diameter or irregularly shaped steel pipes. High-pressure water jet rust removal equipment is costly and has limitations in controlling the surface roughness of the steel pipe. Furthermore, existing rust removal equipment generally suffers from high energy consumption, limited applicability, and an inability to meet the high-efficiency rust removal needs of steel pipes of different specifications, resulting in low applicability. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a high-efficiency and energy-saving steel pipe internal rust removal device. This addresses the issues raised in the background art, such as high energy consumption, limited applicability, inability to meet the high-efficiency rust removal needs of steel pipes of different specifications, and low applicability of existing rust removal devices.

[0006] The purpose and effectiveness of this utility model's high-efficiency and energy-saving steel pipe internal rust removal equipment are achieved through the following specific technical means:

[0007] A high-efficiency and energy-saving steel pipe internal rust removal device includes: a base plate; the base plate adopts a rectangular plate structure; a slide rail is fixedly installed on the top front side of the base plate; a U-shaped block structure slider is slidably installed on one side of the slide rail, and the top of the slider has a through-hole structure; a cylindrical connecting rod is rotatably connected to the front side of the slider, and the outer side of the connecting rod has a threaded groove structure; eight sets of first outer rods are rotatably connected in a ring array on the outer side of the connecting rod; a set of rectangular plate structure cleaning plates is fixedly connected to the outer side of every two sets of first outer rods, and the outer wall of the cleaning plate is provided with a wire brush, the front end of the cleaning plate has a circular groove structure, and both sides of the front end of the cleaning plate have through-hole structures.

[0008] Furthermore, a set of cylindrical placement rollers is rotatably arranged on both sides of the top of the base plate, and the two sets of placement rollers are connected by a transmission belt. The outer wall of the placement rollers is provided with an anti-slip structure. A first motor is fixedly arranged on the top of the base plate, and the first motor is connected to the placement rollers. An exhaust fan is fixedly arranged on the top right side of the base plate. An L-shaped plate is fixedly arranged in the middle of the top of the base plate. A cylinder is fixedly arranged on the top of the fixed plate. A rectangular plate is connected to the bottom of the cylinder. Four sets of cylindrical pressure rollers are rotatably arranged in a rectangular array at the bottom of the mounting plate.

[0009] Furthermore, a lead screw is rotatably provided on the inner side of the slide rail, and the lead screw is connected to the slider by a threaded connection; a set of blowers is fixedly provided on both the upper and lower sides of the slider; a second motor is fixedly provided on one side of the slider, and the second motor is connected to the connecting rod for transmission; a rectangular plate extension plate is fixedly connected to the front end of the cleaning plate, a wire brush is fixedly provided on the outer wall of the extension plate, and a set of through-hole screw holes is provided on both sides of the front and rear ends of the extension plate, and a circular groove structure is provided at the front end of the extension plate.

[0010] Furthermore, a cylindrical reinforcing rod is fixedly connected to the rear end of the extension plate, and the size of the reinforcing rod matches the circular groove at the front end of the cleaning plate and the extension plate; a threaded ring is rotatably provided on the outer side of the connecting rod through a threaded engagement, and a circular annular groove structure is opened on the outer side of the threaded ring; a circular annular connecting ring is rotatably provided in the circular annular groove on the outer side of the threaded ring; four sets of second outer rods are rotatably provided in a circular array on the outer side of the connecting ring, and the outer ends of the second outer rods are rotatably connected to the cleaning plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By incorporating connecting rods, screw rings, and cleaning plates, the expansion range of each cleaning plate group can be adjusted using the screw rings during use. This allows for adjustments based on the diameter of different steel pipes, enabling the cleaning plate positions to be adjusted to meet processing needs when cleaning steel pipes of varying diameters. This significantly improves the versatility of the device, eliminating the need to replace any components when performing rust removal operations on steel pipes of different specifications. This reduces production costs while increasing production efficiency.

[0013] By combining one or more sets of extension plates with cleaning plates to achieve the required length, different processing needs can be met, greatly improving the practicality of the equipment. At the same time, there is no need to perform multiple rust removal operations on the steel pipes. It can complete the rust removal operation of the inner wall of steel pipes of different lengths in one go, without the need for segmented processing, which is conducive to improving processing efficiency and greatly expanding the application range of the equipment.

[0014] The dust collection system, consisting of an exhaust fan and a multi-layer filter, works in conjunction with a blower to promptly remove rust dust, effectively preventing dust spread and ensuring that dust emissions during equipment operation meet environmental protection requirements. This creates a clean working environment, reduces health hazards to operators, eliminates the need for manual cleaning of rust inside steel pipes, and is highly automated, greatly reducing the workload. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall axial view structure of this utility model.

[0016] Figure 2 This is a top view schematic diagram of the overall structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the connection relationship between the slider and the connecting rod of this utility model.

[0018] Figure 4 This is a schematic diagram of the disassembled structure of the connecting rod and cleaning plate of this utility model.

[0019] Figure 5 This is a bottom view of the fixing plate part of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Base plate; 101. Placement roller; 102. First motor; 103. Exhaust fan; 104. Fixing plate; 105. Cylinder; 106. Mounting plate; 107. Pressure roller; 108. Slide rail; 109. Lead screw; 110. Slider; 111. Blower; 112. Second motor; 113. Connecting rod; 114. First outer rod; 115. Cleaning plate; 116. Extension plate; 117. Reinforcing rod; 118. Threaded ring; 119. Connecting ring; 120. Second outer rod. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0023] Example 1: As shown in the attached document Figure 1 To be continued Figure 5 As shown:

[0024] This utility model provides a high-efficiency and energy-saving steel pipe internal rust removal device, including: a base plate 1; the base plate 1 adopts a rectangular plate structure; a slide rail 108 is fixedly installed on the top front side of the base plate 1; a U-shaped block structure slider 110 is slidably installed on one side of the slide rail 108, and the top of the slider 110 has a through-hole structure; a cylindrical connecting rod 113 is rotatably connected to the front side of the slider 110, and the outer side of the connecting rod 113 has a threaded groove structure; eight sets of first outer rods 114 are rotatably connected in a ring array on the outer side of the connecting rod 113; a set of rectangular plate structure cleaning plates 115 are fixedly connected to the outer side of every two sets of first outer rods 114, and the outer wall of the cleaning plate 115 is provided with a wire brush, the front end of the cleaning plate 115 has a circular groove structure, and both sides of the front end of the cleaning plate 115 have through-hole structures.

[0025] Among them, a threaded ring 118 is rotatably provided on the outer side of the connecting rod 113 through a threaded engagement, and a circular groove structure is formed on the outer side of the threaded ring 118; a circular ring structure connecting ring 119 is rotatably provided in the circular groove on the outer side of the threaded ring 118; four sets of second outer rods 120 are rotatably arranged in a circular array on the outer side of the connecting ring 119, and the outer ends of the second outer rods 120 are rotatably connected to the cleaning plate 115; the radial unfolding angle of the cleaning plate 115 can be adjusted by rotating the threaded ring 118 to adapt to the rust removal requirements of steel pipes with different inner diameters.

[0026] The base plate 1 has a set of cylindrical placement rollers 101 rotatably mounted on both sides of its top, and the two sets of placement rollers 101 are connected by a transmission belt. The outer wall of the placement rollers 101 is provided with an anti-slip structure. A first motor 102 is fixedly mounted on the top of the base plate 1, and the first motor 102 is connected to the placement rollers 101. An exhaust fan 103 is fixedly mounted on the top right side of the base plate 1. The exhaust fan 103 is a high-efficiency and energy-saving fan. Its air inlet is connected to one end of a steel pipe through a retractable dust suction hose, and its air outlet is connected to a dust collection box, which contains multiple dust collection devices. The layered filtration device can effectively collect and treat the dust generated during the rust removal process, meeting environmental protection requirements; an L-shaped plate structure fixing plate 104 is fixedly installed in the middle of the top of the base plate 1; a cylinder 105 is fixedly installed on the top of the fixing plate 104; a rectangular plate structure mounting plate 106 is connected to the bottom of the cylinder 105 for transmission; four sets of cylindrical pressure rollers 107 are arranged in a rectangular array at the bottom of the mounting plate 106. The outer circumference of the pressure rollers 107 is wrapped with polyurethane elastic material, which can ensure effective clamping force on the steel pipe and prevent damage to the surface of the steel pipe.

[0027] The specific usage and function of this embodiment are as follows:

[0028] Install the base plate 1 into the working area, place the steel pipe to be derusted on the two sets of placement rollers 101, start the cylinder 105 to drive the mounting plate 106 to move downward along the fixed plate 104, thereby causing the pressure roller 107 to descend and press the steel pipe, ensuring that the steel pipe rotates stably during the derusting process. Adjust the height of the connecting rod 113 according to the position of the steel pipe, so that the connecting rod 113 can be at the center height of the steel pipe. By rotating the screw 109, the slider 110 is driven to slide up and down along the slide rail 108, thereby adjusting the height of the connecting rod 113. Then, according to the inner diameter of the steel pipe, rotate the screw ring 118, so that the screw ring 118 slides along the connecting rod 113 through the cooperation with the threaded groove on the connecting rod 113, thereby moving the second outer rods 120 of each group. Through the cooperation of the second outer rods 120 of each group with the first outer rods 114 of each group, the cleaning plate 115 is pushed to expand or contract radially, so that the wire brush on the outer wall of the cleaning plate 115 is in close contact with the inner wall of the steel pipe.

[0029] Example 2: Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 5 As shown:

[0030] The slide rail 108 has a lead screw 109 rotatably mounted on its inner side, and the lead screw 109 is connected to the slider 110 by a threaded connection. A set of blowers 111 are fixedly mounted on both the upper and lower sides of the slider 110. The blowers 111 are high-pressure centrifugal blowers with adjustable guide covers at the air outlet, which can promptly blow away the rust dust generated during the rust removal process from the inner wall of the steel pipe. A second motor 112 is fixedly mounted on one side of the slider 110, and the second motor 112 is connected to the connecting rod 113 for transmission. A rectangular plate extension plate 116 is fixedly connected to the front end of the cleaning plate 115. A wire brush is fixedly mounted on the outer wall of the extension plate 116, and a set of through-hole structures is opened on both sides of the front and rear ends of the extension plate 116. A circular groove structure is opened at the front end of the extension plate 116. Multiple sets of extension plates 116 can be connected by bolts to meet the rust removal needs of steel pipes of different lengths.

[0031] The rear end of the extension plate 116 is fixedly connected to a cylindrical reinforcing rod 117, and the size of the reinforcing rod 117 matches the circular groove at the front end of the cleaning plate 115 and the extension plate 116.

[0032] The specific usage and function of this embodiment are as follows:

[0033] In this invention, if the steel pipe is long, an extension plate 116 can be installed at the front end of the cleaning plate 115 in advance. A reinforcing rod 117 is inserted into the circular groove at the front end of the cleaning plate 115. Then, the extension plate 116 is aligned with the screw holes on the cleaning plate 115, and the two are fixedly connected with bolts. Multiple sets of extension plates 116 can be combined and connected in the same way to achieve the required length, meeting different processing needs and greatly improving the practicality of the equipment. Furthermore, it eliminates the need for multiple rust removal operations on the steel pipe. It is capable of completing the rust removal operation of the inner wall of steel pipes of different lengths in one go, which is conducive to improving processing efficiency. The first motor 102 is started to drive the placement roller 101 to rotate, which drives the steel pipe to rotate synchronously. At the same time, the second motor 112 is started to drive the connecting rod 113 to rotate in the opposite direction, so that the cleaning plate 115 removes rust from the inner wall of the steel pipe in all directions. During the rust removal process, the blower 111 and the exhaust fan 103 are started simultaneously. The blower 111 blows the rust dust to one end of the steel pipe, and the exhaust fan 103 sucks the dust into the dust collection box for centralized treatment, thus completing the entire rust removal process.

Claims

1. A high-efficiency and energy-saving steel pipe internal rust removal device, characterized in that, include: The base plate (1) adopts a rectangular plate structure; a slide rail (108) is fixedly installed on the top front side of the base plate (1); a U-shaped block structure slider (110) is slidably installed on one side of the slide rail (108), and a through-hole structure is opened on the top of the slider (110); a cylindrical connecting rod (113) is rotatably connected to the front side of the slider (110), and a threaded groove structure is opened on the outer side of the connecting rod (113); eight sets of first outer rods (114) are rotatably connected to the outer side of the connecting rod (113) in a ring array; a set of rectangular plate structure cleaning plates (115) is fixedly connected to the outer side of every two sets of first outer rods (114), and a wire brush is installed on the outer wall of the cleaning plate (115), a circular groove structure is opened at the front end of the cleaning plate (115), and through-hole structures are opened on both sides of the front end of the cleaning plate (115).

2. The high-efficiency and energy-saving steel pipe internal rust removal equipment as described in claim 1, characterized in that: The bottom plate (1) has a set of cylindrical placement rollers (101) rotatably arranged on both sides of the top, and the two sets of placement rollers (101) are connected by a transmission belt. The outer wall of the placement roller (101) is provided with an anti-slip structure. The top of the bottom plate (1) is fixedly provided with a first motor (102), and the first motor (102) is connected to the placement roller (101) in a transmission manner. The top right side of the bottom plate (1) is fixedly provided with an exhaust fan (103).

3. The high-efficiency and energy-saving steel pipe internal rust removal equipment as described in claim 1, characterized in that: The bottom plate (1) has an L-shaped plate structure fixed plate (104) fixedly installed in the middle of the top; the top of the fixed plate (104) has a cylinder (105) fixedly installed; the bottom of the cylinder (105) has a rectangular plate structure mounting plate (106) for transmission connection; the bottom of the mounting plate (106) has four sets of cylindrical pressure rollers (107) arranged in a rectangular array.

4. The high-efficiency and energy-saving steel pipe internal rust removal equipment as described in claim 1, characterized in that: The inner side of the slide rail (108) is provided with a lead screw (109), and the lead screw (109) is connected to the slider (110) by a threaded connection; a set of blowers (111) are fixedly provided on both the upper and lower sides of the slider (110).

5. The high-efficiency and energy-saving steel pipe internal rust removal equipment as described in claim 1, characterized in that: A second motor (112) is fixedly installed on one side of the slider (110), and the second motor (112) is connected to the connecting rod (113) in a transmission connection; a rectangular plate structure extension plate (116) is fixedly connected to the front end of the cleaning plate (115), a wire brush is fixedly installed on the outer wall of the extension plate (116), and a set of through screw hole structures are opened on both sides of the front and rear ends of the extension plate (116), and a circular groove structure is opened at the front end of the extension plate (116).

6. The high-efficiency and energy-saving steel pipe internal rust removal equipment as described in claim 5, characterized in that: The rear end of the extension plate (116) is fixedly connected to a cylindrical reinforcing rod (117), and the size of the reinforcing rod (117) matches the circular groove at the front end of the cleaning plate (115) and the extension plate (116); a threaded ring (118) is rotatably provided on the outer side of the connecting rod (113) through a threaded engagement, and a circular groove structure is provided on the outer side of the threaded ring (118).

7. The high-efficiency and energy-saving steel pipe internal rust removal equipment as described in claim 6, characterized in that: A ring-shaped connecting ring (119) is rotatably arranged in the annular groove on the outer side of the spiral ring (118); four sets of second outer rods (120) are rotatably arranged in an annular array on the outer side of the connecting ring (119), and the outer ends of the second outer rods (120) are rotatably connected to the cleaning plate (115).