Tube nest sand blasting device used in tubular reactor
By designing a tube blasting device with a movable seat and lifting mechanism, the problems of high labor intensity and splashing danger in traditional sandblasting rust removal have been solved. This has achieved low labor intensity, high efficiency in rust removal, improved safety, and extended equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING YUANQIAN CHEM EQUIP INSTALLATION ENG CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional sandblasting for rust removal in tubular reactors is labor-intensive, dangerous due to sandblasting splashes, and affects equipment safety and lifespan; existing technologies cannot effectively solve these problems.
A tube blasting device was designed, comprising a movable seat, a lifting mechanism, and a protective mechanism. The movable seat is used to push the tube for horizontal blasting, the lifting mechanism is used to adjust the height of the blasting gun, and the protective mechanism is used to prevent splashing, thereby reducing labor intensity and improving safety.
It achieves low labor intensity and high efficiency in rust removal, reduces the harm of sandblasting splatter to workers and equipment, and extends the service life of sandblasting equipment.
Smart Images

Figure CN224196610U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of sandblasting equipment, and specifically relates to a tubular sandblasting device used in a tubular reactor. Background Technology
[0002] In industries such as chemical, petroleum, and metallurgy, tubular reactors are widely used heat exchange and reaction equipment. Due to prolonged exposure to high temperature, high pressure, and corrosive media, the inner walls of the tubes are prone to corrosion, scaling, and deposits, affecting heat transfer efficiency and shortening equipment lifespan. Therefore, regular sandblasting and rust removal of the tubes is necessary.
[0003] Traditional sandblasting for rust removal mainly relies on manual operation with a handheld sandblasting gun. However, workers need to hold the sandblasting gun for a long time, which is labor-intensive and energy-consuming. In addition, the high-speed sand particles are prone to bounce and splash after colliding with the outer wall of the tube, along with rust chips. Sandblasting splash is very harmful, not only threatening the safety of workers, but also polluting surrounding equipment or impacting the equipment, affecting the service life of the sandblasting equipment, and increasing the difficulty of cleaning up the sandblasting and rust chips. Summary of the Invention
[0004] The purpose of this invention is to provide a tubular sandblasting device for use in a tubular reactor, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides a tubular sandblasting device for use in a tubular reactor, comprising:
[0006] Portable seat;
[0007] A sand hopper, wherein the sand hopper is fixed to one end of the movable base;
[0008] An air compressor, which is fixed to the other end of the movable base;
[0009] A sandblasting gun, which is connected to the sand outlet of a sand tank via a connecting pipe;
[0010] A lifting mechanism is installed on one side of the movable base and is used for adjusting the height of the sandblasting gun.
[0011] A protective mechanism is installed on one side of the lifting mechanism to prevent the impact of sandblasting splashes.
[0012] Preferably, the lifting mechanism includes:
[0013] A support tube, which is fixed to one side of the movable seat;
[0014] A support rod that slides through the top of the inner cavity of a support tube;
[0015] The locking block is fixed to the top of the support rod and is movably engaged with the outer wall of the sandblasting gun.
[0016] Preferably, the outer wall of the support tube is fitted with locking bolts, which are used to fix the position of the support rod.
[0017] Preferably, the protective mechanism includes:
[0018] The first fixing plate is disposed on one side of the support rod;
[0019] The first protective plate is fixed to the bottom of the first fixed plate;
[0020] The second protective plate is fixed to the top of the first fixed plate;
[0021] Elastic components, a plurality of said elastic components are fixed at equal intervals to the top of the first fixed plate;
[0022] The second fixing plate is fixed to the top of the multiple elastic components;
[0023] The third protective plate is fixed to the bottom of the second fixed plate;
[0024] Protective films, multiple protective films are attached to the outer walls of the first protective plate, the second protective plate and the third protective plate.
[0025] Preferably, the second and third protective plates each have an arc-shaped groove structure at one end that matches the outer wall of the sandblasting gun, and the protective film is used to protect the outer walls of the first, second and third protective plates.
[0026] Preferably, the elastic component includes:
[0027] A fixing tube, which is fixed to the top of the first fixing plate;
[0028] A tension spring, which is fixed between the fixed tube and the second fixed plate;
[0029] A fixing rod is sleeved in the inner cavity of the tension spring and fixed to the bottom of the second fixing plate. The fixing rod is slidably connected to the inner cavity of the fixing tube.
[0030] Compared with the prior art, the present invention has the following beneficial effects:
[0031] This utility model integrates a movable base, lifting mechanism, and sandblasting gun into a single design. Workers only need to push the movable base to complete horizontal sandblasting operations, eliminating the need to hold the sandblasting gun for extended periods, thus reducing labor intensity. The adjustable lifting mechanism adapts to sandblasting of tubes at different heights, improving rust removal efficiency. The protective plate on the protective mechanism blocks sand particles from splashing without obstructing the worker's view of the work progress. The elastic component design allows the sandblasting gun to be easily removed or fixed, improving operational convenience, enhancing safety, reducing the impact of sandblasting on equipment, and extending the service life of the sandblasting device. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0033] Figure 2 This is a schematic diagram of the overall front structure of this utility model.
[0034] Figure 3 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.
[0035] Figure 4 This is a side sectional view of the fixed tube of this utility model.
[0036] In the diagram: 1. Movable seat; 2. Sand tank; 3. Air compressor; 4. Sandblasting gun; 5. Lifting mechanism; 51. Support pipe; 52. Support rod; 53. Locking block; 6. Protective mechanism; 61. First fixing plate; 62. First protective plate; 63. Second protective plate; 64. Elastic component; 641. Fixing pipe; 642. Tension spring; 643. Fixing rod; 65. Second fixing plate; 66. Third protective plate; 67. Protective membrane. Detailed Implementation
[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0038] This utility model provides, for example Figure 1-4The illustrated tubular sandblasting device used in a tubular reactor includes a movable base 1, a sand tank 2, an air compressor 3, a sandblasting gun 4, a lifting mechanism 5, and a protective mechanism 6. The sand tank 2 is fixed to one end of the movable base 1, and the air compressor 3 is fixed to the other end of the movable base 1. The air compressor 3 and the control valve on the sand tank 2 are connected to an external power supply through a control system. The sandblasting gun 4 is connected to the sand outlet end of the sand tank 2 through a connecting pipe. The lifting mechanism 5 is installed on one side of the movable base 1 and is used for adjusting the height of the sandblasting gun 4. To facilitate the adjustment of the sandblasting gun 4 to the relative position at the inlet of the tubular reactor, ensuring that the sandblasting gun 4 can be aimed at the inner wall of the tube for rust removal, during sandblasting, the sandblasting air source of the air compressor 3 is turned on, the air pressure is adjusted to a suitable range, the feed valve of the sand tank 2 is opened, an appropriate amount of sand is added to the sand tank 2, the control system is started, and sandblasting and rust removal are carried out. Furthermore, by pushing the moving base 1, the sandblasting gun 4 can perform horizontal rust removal on the tube, reducing the need for manual handling of the sandblasting gun 4 and reducing the impact of sandblasting splashes on the workers.
[0039] The lifting mechanism 5 includes a support tube 51, a support rod 52, and a locking block 53. The support tube 51 is fixed to one side of the movable seat 1. The support rod 52 slides through the top of the inner cavity of the support tube 51. The locking block 53 is fixed to the top of the support rod 52 and is movably engaged with the outer wall of the sandblasting gun 4. A locking bolt is installed on the outer wall of the support tube 51. The locking bolt is used to fix the position of the support rod 52. By rotating the locking bolt, the height of the support rod 52 can be adjusted in the inner cavity of the support tube 51. It is suitable for sandblasting and rust removal of different longitudinal structures of tubes.
[0040] Additionally, a protective mechanism 6 is installed on one side of the lifting mechanism 5. The protective mechanism 6 is used to prevent the impact of sandblasting splashes. The protective mechanism 6 includes a first fixed plate 61, a first protective plate 62, a second protective plate 63, elastic components 64, a second fixed plate 65, a third protective plate 66, and a protective membrane 67. The first fixed plate 61 is disposed on one side of the support rod 52. The first protective plate 62 is fixed to the bottom of the first fixed plate 61, and the second protective plate 63 is fixed to the top of the first fixed plate 61. Multiple elastic components 64 are equidistantly fixed to the top of the first fixed plate 61, and the second fixed plate 65 is fixed to the top of the multiple elastic components 64. The third protective plate 66 is fixed to the bottom of the second fixed plate 65. The opposite ends of the second protective plate 63 and the third protective plate 66 each have an arc-shaped groove structure that mates with the outer wall of the sandblasting gun 4, facilitating... The sandblasting gun 4 can be snapped between the second protective plate 63 and the third protective plate 66, enabling stable use of the sandblasting gun 4. The first protective plate 62, the second protective plate 63, and the third protective plate 66 are all transparent plastic plates, which do not affect the worker's observation of the sandblasting and rust removal progress, and also help reduce sandblasting splashes onto the worker, the air compressor 3, and the sand tank 2, thereby improving the service life of the device. Multiple protective films 67 are attached to the outer walls of the first protective plate 62, the second protective plate 63, and the third protective plate 66. The protective films 67 are used to protect the outer walls of the first protective plate 62, the second protective plate 63, and the third protective plate 66. The protective films 67 are water-soluble and peelable, which facilitates the replacement of the protective films 67 and helps to improve the service life of the first protective plate 62, the second protective plate 63, and the third protective plate 66.
[0041] Specifically, the elastic component 64 includes a fixing tube 641, a tension spring 642, and a fixing rod 643. The fixing tube 641 is fixed to the top of the first fixing plate 61, the tension spring 642 is fixed between the fixing tube 641 and the second fixing plate 65, the fixing rod 643 is sleeved in the inner cavity of the tension spring 642, and the fixing rod 643 is fixed to the bottom of the second fixing plate 65. The fixing rod 643 is slidably connected to the inner cavity of the fixing tube 641. Through the elasticity of the tension spring 642, it is easy to elastically pull between the second fixing plate 65 and the first fixing plate 61, so that the sandblasting gun 4 can be taken out between the second protective plate 63 and the third protective plate 66, thereby improving the stability of the sandblasting gun 4 in use.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tubular sandblasting device used in a tubular reactor, characterized in that, include: Mobile seat (1); Sand hopper (2), which is fixed to one end of the movable base (1); An air compressor (3) is fixed to the other end of a movable base (1); A sandblasting gun (4) is connected to the sand outlet of a sand tank (2) via a connecting pipe. Lifting mechanism (5), which is installed on one side of the movable seat (1), is used for height adjustment of the sandblasting gun (4); A protective mechanism (6) is installed on one side of the lifting mechanism (5) and is used to prevent the impact of sandblasting splashes.
2. The tubular sandblasting device used in a tubular reactor according to claim 1, characterized in that, The lifting mechanism (5) includes: Support tube (51), the support tube (51) is fixed to one side of the movable seat (1); Support rod (52), which slides through the top of the inner cavity of support tube (51); The locking block (53) is fixed to the top of the support rod (52) and is movably engaged with the outer wall of the sandblasting gun (4).
3. The tubular sandblasting device used in a tubular reactor according to claim 2, characterized in that, The outer wall of the support tube (51) is fitted with locking bolts, which are used to fix the position of the support rod (52).
4. The tubular sandblasting device used in a tubular reactor according to claim 2, characterized in that, The protective mechanism (6) includes: The first fixing plate (61) is disposed on one side of the support rod (52); The first protective plate (62) is fixed to the bottom of the first fixed plate (61); The second protective plate (63) is fixed to the top of the first fixed plate (61); Elastic components (64), a plurality of said elastic components (64) are fixed at equal intervals to the top of the first fixed plate (61); The second fixing plate (65) is fixed to the top of the plurality of elastic components (64); The third protective plate (66) is fixed to the bottom of the second fixed plate (65); Protective films (67), a plurality of the protective films (67) are attached to the outer walls of the first protective plate (62), the second protective plate (63) and the third protective plate (66).
5. A tubular sandblasting device for use in a tubular reactor according to claim 4, characterized in that, The second protective plate (63) and the third protective plate (66) each have an arc-shaped groove structure that matches the outer wall of the sandblasting gun (4) at one end. The protective film (67) is used to protect the outer walls of the first protective plate (62), the second protective plate (63) and the third protective plate (66).
6. A tubular sandblasting device for use in a tubular reactor according to claim 5, characterized in that, The elastic component (64) includes: A fixing tube (641) is fixed to the top of the first fixing plate (61); A tension spring (642) is fixed between a fixing tube (641) and a second fixing plate (65); A fixing rod (643) is sleeved in the inner cavity of the tension spring (642). The fixing rod (643) is fixed to the bottom of the second fixing plate (65). The fixing rod (643) is slidably connected to the inner cavity of the fixing tube (641).