An internal cleaning device for large chemical tanks

Abstract

The utility model discloses a large -scale chemical tank internal cleaning equipment relates to the field of chemical tank, the utility model discloses a shell and tank body, the inside one side of shell is installed with first motor, and the output of first motor is connected with driving gear. The utility model discloses be provided with electric push rod, movable ring, sliding plate, movable rod, rotation plate, resist the plate and non -skid pad, when need make equipment stay in the inside certain position of tank body, can start electric push rod, and electric push rod work can drive movable ring to remove, and movable ring then promotes rotation plate to rotate, and rotation plate then promotes sliding plate to remove, and then make resist the plate and non -skid pad move to the direction of tank body inner wall, when non -skid pad and tank body inner wall close -fit, then can close electric push rod, at this moment, through the close -fit of non -skid pad and tank body inner wall can improve the stability of equipment, avoid equipment and influence to target area to carry out sand blasting treatment with random movement, thereby improve the sand blasting cleaning effect to tank body inner wall.

Description

Technical Field

[0001] This utility model relates to the field of chemical tanks, specifically a cleaning device for the interior of large chemical tanks. Background Technology

[0002] Chemical tanks are containers or container systems used for storing, processing, or reacting various chemical substances. They are not simply "large tanks," but industrial equipment with strict design and manufacturing standards based on their intended use. After prolonged use, the old coating on the inner wall of the tank will age and peel off, and oxide scale and rust will form on the metal surface. These substances have weak adhesion to the metal substrate. If a new coating is applied directly on top, the new coating will actually adhere to these "loose layers," just like applying new tiles directly to a loose wall, which will quickly fall off in one piece. Therefore, it is necessary to clean the inner wall of the tank before re-coating. Cleaning the inner wall of the tank requires the use of sandblasting equipment. The sandblasting equipment sprays abrasive into the inner wall of the tank to remove the old coating, rust, oxide scale, oil stains, etc., exposing the "natural color" of the metal, which is convenient for subsequent coating application.

[0003] The internal cleaning of large chemical tanks involves several steps. First, preliminary cleaning and pretreatment are performed (using a high-pressure water jet generated by a high-pressure water pump to impact the tank wall, removing loose dirt, residual liquid, and some solid deposits). Next is surface treatment: after the preliminary cleaning, in order to achieve the standard of exposing the metal substrate and forming a certain surface roughness (anchor pattern depth) to facilitate the adhesion of new coatings, the inner wall of the tank needs to be sandblasted. That is, an air compressor provides high-pressure air, and the abrasive (such as copper ore sand, steel shot, quartz sand, brown corundum, etc.) is mixed with air through a sandblasting can (pressure tank), delivered to the spray gun through a sandblasting hose, and then sprayed out through the nozzle to blast the tank wall.

[0004] Most existing chemical tank cleaning equipment relies on simple support structures (such as fixed rollers and brackets) to contact the inner wall of the tank. When the sandblasting mechanism sprays high-pressure abrasive, the resulting sandblasting reaction force acts directly on the entire equipment. The fixed support structure cannot provide sufficient reverse restraint force, causing the equipment to easily slide or deviate along the inner wall of the tank. This causes the sandblasting nozzle to deviate from the preset cleaning area, resulting in over-cleaning of some areas and uncleaning of others. This seriously affects the cleaning accuracy and requires subsequent manual cleaning, increasing operation time and costs. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a cleaning device for the interior of a large chemical tank, so as to solve the technical problem that the device is unstable and prone to movement when cleaning the target area.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a large chemical tank internal cleaning device, comprising a shell and a tank body. A first motor is installed on one side of the interior of the shell, and the output end of the first motor is connected to a drive gear. A material distribution pipe is also connected to one side of the interior of the shell through a sealed bearing. One end of the material distribution pipe extends to the outside of the shell and is equipped with multiple spray pipes. A driven gear is installed on the outer wall of the material distribution pipe. A nozzle is installed at the end of the spray pipe. Multiple sliding rods are installed on the outer wall of the shell. A sliding plate is fitted on the outer wall of the sliding rod, and a movable rod is fixed on the sliding plate. A contact plate is installed at the end of the movable rod. An anti-slip pad is installed on the side of the contact plate near the inner wall of the tank body. A fixing ring is installed on the outer wall of the shell, and an electric push rod is installed on the upper side and the lower side of one side of the fixing ring. A movable ring is installed at the output end of the electric push rod through a piston rod, and a rotating plate is rotatably connected to the sliding plate through a pin shaft.

[0007] By adopting the above technical solution, when the first motor is working, it can drive the active gear to rotate, which in turn drives the driven gear to rotate, thereby driving the material distribution pipe to rotate.

[0008] Furthermore, four support seats are fixed to the outer wall of the housing, and a protective cover is installed on the outer surface of two support seats. A second motor is installed inside the protective cover, and rollers are provided on the output ends of the two second motors and the other two support seats.

[0009] By adopting the above technical solution, when the second motor is working, it can drive the roller connected to it to rotate, thereby enabling the equipment to move inside the tank.

[0010] Furthermore, a sealing plate is installed at one end of the housing by multiple bolts, a sealing ring is installed on one side of the sealing plate, and the other end of the dispensing pipe passes through the sealing plate.

[0011] By adopting the above technical solution, the sealing plate can seal one end of the housing, thereby improving the dustproof effect of the housing.

[0012] Furthermore, a side plate is fixed to one side of the sealing plate, a material conveying pipe is installed at the bottom of the side plate, and a rotary joint is installed between one end of the material conveying pipe and the other end of the material distributing pipe.

[0013] By adopting the above technical solution, the rotary joint allows the distribution pipe to rotate while the conveying pipe remains fixed, facilitating material conveying.

[0014] Furthermore, a feed hose is installed at one end of the feed pipe via a flange.

[0015] By adopting the above technical solution, the abrasive can enter the inside of the feed pipe through the feed hose.

[0016] Furthermore, the movable ring is sleeved on the outer wall of the housing, and the movable ring is slidably connected to the housing.

[0017] By adopting the above technical solution, the movable ring can slide on the housing, thereby adjusting the position of the movable ring.

[0018] Furthermore, the shell is located inside the tank, the roller contacts the inner wall of the tank, and the anti-slip pad is made of silicone rubber.

[0019] By adopting the above technical solution, the shell can be moved inside the tank.

[0020] Furthermore, the driving gear meshes with the driven gear.

[0021] By adopting the above technical solution, the driven gear can be driven to rotate when the driving gear rotates.

[0022] Furthermore, both the contact plate and the movable rod are slidably connected to the slide rod via a sliding plate, and a limit block is installed at the end of the slide rod.

[0023] By adopting the above technical solution, when the skateboard slides on the slide bar, the skateboard can drive the movable bar and the contact plate to move.

[0024] Furthermore, the electric push rod, the first motor, and the second motor are all electrically connected to the external control panel.

[0025] By adopting the above technical solution, the electric push rod, the first motor, and the second motor can be started or stopped via an external control panel.

[0026] In summary, the present invention has the following main advantages:

[0027] 1. This utility model is equipped with an electric push rod, a movable ring, a sliding plate, a movable rod, a rotating plate, a contact plate, and an anti-slip pad. When it is necessary to stop the equipment in a certain position inside the tank, the electric push rod can be activated. The operation of the electric push rod drives the movable ring to move, which in turn pushes the rotating plate to rotate. The rotating plate then pushes the sliding plate to move, thereby causing the contact plate and the anti-slip pad to move towards the inner wall of the tank. When the anti-slip pad is in close contact with the inner wall of the tank, the electric push rod can be turned off. At this time, the contact between the anti-slip pad and the inner wall of the tank can improve the stability of the equipment and prevent the equipment from moving randomly, which would affect the sandblasting treatment of the target, thereby improving the sandblasting cleaning effect on the inner wall of the tank.

[0028] 2. This utility model has a sliding rod that can guide the sliding plate, thereby improving the stability of the sliding plate when it moves. The anti-slip pad can prevent the contact plate from directly contacting the inner wall of the tank, thus improving the protection effect on the inner wall of the tank.

[0029] 3. This utility model is equipped with a first motor, a driving gear, a driven gear, a rotary joint, and a distribution pipe. When it is necessary to perform all-round sandblasting treatment on the inner wall of the tank, the first motor can be started. The operation of the first motor can drive the driving gear to rotate, which in turn drives the driven gear to rotate, and then drives the distribution pipe to rotate, so that the spray pipe and nozzle can rotate continuously, so as to perform all-round sandblasting treatment on the inner wall of the tank and improve the cleaning effect on the inner wall of the tank. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the overall orthographic structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the shell structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the roller structure of this utility model;

[0034] Figure 5 This is a schematic diagram of the contact plate structure of this utility model;

[0035] Figure 6 This is a schematic diagram of the material distribution pipe structure of this utility model;

[0036] Figure 7 This is a side sectional view of the protective cover of this utility model.

[0037] In the diagram: 1. Shell; 2. Feeding pipe; 3. Support base; 4. Roller; 5. Spraying pipe; 6. Nozzle; 7. Driven gear; 8. Driven gear; 9. First motor; 10. Side plate; 11. Feeding pipe; 12. Feed hose; 13. Rotary joint; 14. Sealing plate; 15. Sealing ring; 16. Protective cover; 17. Second motor; 18. Fixed ring; 19. Electric push rod; 20. Movable ring; 21. Slide rod; 22. Slide plate; 23. Movable rod; 24. Turning plate; 25. Contact plate; 26. Anti-slip mat; 27. Tank body; 28. Through hole; 29. ​​Dustproof net. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0039] The embodiments of this utility model will be described below based on its overall structure.

[0040] Example 1:

[0041] A large chemical tank internal cleaning device, such as Figures 1-7 As shown, the device includes a housing 1 and a tank 27. A first motor 9 is installed on one side of the inside of the housing 1, and the output end of the first motor 9 is connected to a drive gear 8. A material distribution pipe 2 is also connected to one side of the inside of the housing 1 through a sealed bearing. One end of the material distribution pipe 2 extends to the outside of the housing 1 and is equipped with multiple spray pipes 5. A driven gear 7 is installed on the outer wall of the material distribution pipe 2. A nozzle 6 is installed at the end of the spray pipe 5. Multiple sliding rods 21 are installed on the outer wall of the housing 1. A sliding plate 22 is fitted on the outer wall of the sliding rod 21, and a movable rod 23 is fixed on the sliding plate 22. A contact plate 25 is installed at the end of the movable rod 23.

[0042] See Figures 1-6 An anti-slip pad 26 is installed on the side of the contact plate 25 near the inner wall of the tank 27. A fixing ring 18 is installed on the outer wall of the shell 1, and an electric push rod 19 is installed on the upper side and the lower side of one side of the fixing ring 18. A movable ring 20 is installed at the output end of the electric push rod 19 through a piston rod. A rotating plate 24 is rotatably connected between the movable ring 20 and the slide plate 22 through a pin shaft. When the first motor 9 works, it can drive the drive gear 8 to rotate. The drive gear 8 drives the driven gear 7 to rotate, which in turn drives the distributing pipe 2 to rotate. The drive gear 8 and the driven gear 7 mesh. The contact plate 25 and the movable rod 23 are slidably connected to the slide rod 21 through the slide plate 22. A limit block is installed at the end of the slide rod 21. When the slide plate 22 slides on the slide rod 21, the slide plate 22 can drive the movable rod 23 and the contact plate 25 to move.

[0043] See Figures 1-7 Four support bases 3 are fixed to the outer wall of the shell 1, and protective covers 16 are installed on the outer surfaces of two support bases 3. A second motor 17 is installed inside the protective cover 16, and rollers 4 are provided on the output ends of the two second motors 17 and the other two support bases 3. The rollers 4 are rotatably connected to the support bases 3. When the second motors 17 work, they can drive the rollers 4 connected to them to rotate, thereby enabling the equipment to move inside the tank 27. A sealing plate 14 is installed at one end of the shell 1 by multiple bolts, and the other end of the distributing pipe 2 passes through the sealing plate 14. 4. The sealing plate 14 can seal one end of the housing 1, thereby improving the dustproof effect of the housing 1. A side plate 10 is fixed on one side of the sealing plate 14. A material conveying pipe 11 is installed at the bottom of the side plate 10. A rotary joint 13 is installed between one end of the material conveying pipe 11 and the other end of the material distribution pipe 2. The rotary joint 13 allows the material distribution pipe 2 to rotate while the material conveying pipe 11 remains fixed, which facilitates material conveying. Through holes 28 are opened at the bottom of the housing 1 and the bottom of the protective cover 16. A dustproof net 29 is installed inside the through hole 28.

[0044] See Figures 1-6The electric push rod 19, the first motor 9, and the second motor 17 are all electrically connected to the external control panel so that the electric push rod 19, the first motor 9, and the second motor 17 can be started or stopped through the external control panel. The movable ring 20 is sleeved on the outer wall of the housing 1 and is slidably connected to the housing 1 so that the movable ring 20 can slide on the housing 1, thereby adjusting the position of the movable ring 20. The housing 1 is located inside the tank 27, and the roller 4 contacts the inner wall of the tank 27, allowing the housing 1 to move inside the tank 27.

[0045] Example 2:

[0046] Based on the above embodiment 1, in order to improve the sealing performance between the sealing plate 14 and the housing 1, the following structure will be provided.

[0047] Specifically, a sealing ring 15 is installed on one side of the sealing plate 14. The inner wall of the sealing ring 15 is in contact with the outer wall of the distribution pipe 2, and the outer wall of the sealing ring 15 is in contact with the inner wall of the housing 1. The sealing ring 15 is made of silicone rubber.

[0048] Example 3:

[0049] Based on the above embodiment one, the following structure will be set up to facilitate material feeding.

[0050] Specifically, a feed hose 12 is installed at one end of the feed pipe 11 via a flange. The feed hose 12 is connected to an external feeding device, and the abrasive can enter the feed pipe 11 through the feed hose 12, thus facilitating the feeding process.

[0051] Example 4:

[0052] Based on the above embodiment 1, in order to prevent the contact plate 25 from directly adhering to the inner wall of the tank 27, the following structure will be provided.

[0053] Specifically, the anti-slip mat 26 is made of silicone rubber and is arc-shaped to prevent the contact plate 25 from directly contacting the inner wall of the tank 27, while improving the stability of the fit with the inner wall of the tank 27.

[0054] The working principle of this utility model is as follows: First, the operator places the equipment inside the tank 27 to be cleaned and starts the second motor 17 through the external control panel. The second motor drives the roller 4 connected to it to rotate. The roller 4 rolls along the inner wall of the tank 27, moving the entire equipment to the target cleaning area. After reaching the target area, the electric push rod 19 is started. The electric push rod 19 pushes the movable ring 20 to slide along the outer wall of the shell 1 through the piston rod. During the movement of the movable ring 20, it drives the rotating plate 24 connected to it by the pin to rotate. The rotating plate pushes the sliding plate 22 to slide along the sliding rod 21 towards the inner wall of the tank 27. The sliding plate 22 drives the movable rod 23 and the contact plate 25 to move synchronously until the anti-slip pad 26 on the contact plate 25 is tightly attached to the inner wall of the tank 27. Then the electric push rod 19 is turned off, and the equipment achieves stable positioning.

[0055] After positioning is completed, the external feeding equipment delivers abrasive and high-pressure air to the conveying pipe 11 through the feeding hose 12; the abrasive enters the distribution pipe 2 through the conveying pipe 11 and the rotary joint 13, and the distribution pipe distributes the abrasive to multiple spray pipes 5, and finally sprays it out from the nozzle 6; at the same time, the first motor 9 is started, the first motor drives the drive gear 8 to rotate, the drive gear 8 drives the driven gear 7 meshing with it to rotate, the driven gear 7 drives the distribution pipe 2 to rotate, and the distribution pipe 2 drives the spray pipes 5 and the nozzle 6 to rotate synchronously, so as to achieve 360° all-round sandblasting cleaning of the inner wall of the tank 27, and remove old coatings, rust, oxide scale and other dirt;

[0056] After cleaning a single area, reverse the electric push rod 19 to disengage the anti-slip pad 26 from the inner wall of the tank 27, then start the second motor 17 again to move the equipment to the next cleaning area. Repeat the above positioning and sandblasting steps until the inner wall of the tank 27 is completely cleaned.

[0057] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A large chemical tank internal cleaning device, comprising a shell (1) and a tank body (27), characterized in that: A first motor (9) is installed on one side of the inner side of the housing (1), and the output end of the first motor (9) is connected to a drive gear (8). A material distribution pipe (2) is also connected to one side of the inner side of the housing (1) through a sealed bearing. One end of the material distribution pipe (2) extends to the outside of the housing (1) and is equipped with multiple spray pipes (5). A driven gear (7) is installed on the outer wall of the material distribution pipe (2). A nozzle (6) is installed at the end of the spray pipe (5). Multiple sliding rods (21) are installed on the outer wall of the housing (1). A sliding plate (22) is fitted on the outer wall of the sliding rods (21). The sliding plate (22) is fixed with a movable rod (23), and the end of the movable rod (23) is equipped with a contact plate (25). The side of the contact plate (25) near the inner wall of the tank (27) is equipped with an anti-slip pad (26). The outer wall of the shell (1) is equipped with a fixing ring (18), and an electric push rod (19) is installed on the upper side and the lower side of the fixing ring (18). The output end of the electric push rod (19) is equipped with a movable ring (20) through a piston rod, and a rotating plate (24) is rotatably connected between the movable ring (20) and the sliding plate (22) through a pin shaft.

2. The internal cleaning equipment for a large chemical tank according to claim 1, characterized in that: The outer wall of the housing (1) is fixed with four support seats (3), and the outer surfaces of two support seats (3) are equipped with protective covers (16). The protective covers (16) are equipped with second motors (17), and the output ends of the two second motors (17) and the other two support seats (3) are equipped with rollers (4).

3. The internal cleaning equipment for a large chemical tank according to claim 1, characterized in that: One end of the housing (1) is fitted with a sealing plate (14) by multiple bolts, and a sealing ring (15) is fitted on one side of the sealing plate (14). The other end of the material distribution pipe (2) passes through the sealing plate (14).

4. The internal cleaning equipment for a large chemical tank according to claim 3, characterized in that: A side plate (10) is fixed to one side of the sealing plate (14), and a conveying pipe (11) is installed at the bottom of the side plate (10). A rotary joint (13) is installed between one end of the conveying pipe (11) and the other end of the distributing pipe (2).

5. The internal cleaning equipment for a large chemical tank according to claim 4, characterized in that: One end of the conveying pipe (11) is fitted with a feed hose (12) via a flange.

6. The internal cleaning equipment for a large chemical tank according to claim 1, characterized in that: The movable ring (20) is sleeved on the outer wall of the housing (1), and the movable ring (20) is slidably connected to the housing (1).

7. The internal cleaning equipment for a large chemical tank according to claim 2, characterized in that: The shell (1) is located inside the tank (27), the roller (4) is in contact with the inner wall of the tank (27), and the anti-slip pad (26) is made of silicone rubber.

8. The internal cleaning equipment for a large chemical tank according to claim 1, characterized in that: The driving gear (8) meshes with the driven gear (7).

9. The internal cleaning equipment for a large chemical tank according to claim 1, characterized in that: The contact plate (25) and the movable rod (23) are slidably connected to the slide rod (21) via the slide plate (22), and a limit block is installed at the end of the slide rod (21).

10. The internal cleaning equipment for a large chemical tank according to claim 1, characterized in that: The electric push rod (19), the first motor (9), and the second motor (17) are all electrically connected to the external control panel.

Images