Device for coating anticorrosive coating on inner wall of anaerobic tower
By combining lifting, rotating, and extending mechanisms, the problem of uneven coating on the inner wall of the anaerobic tower is solved, achieving efficient coating of anti-corrosion coating, reducing coating waste, and improving anti-corrosion effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LUXING ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-03-18
- Publication Date
- 2026-04-17
AI Technical Summary
Existing anti-corrosion coating devices for the inner walls of anaerobic towers have difficulty reaching large-radius inner walls, resulting in paint waste and uneven spraying, which affects the anti-corrosion effect.
A device was designed that includes lifting, rotating, extending and spraying mechanisms. By adjusting the length of the extending mechanism and combining it with the lifting and rotating mechanisms, the nozzle is ensured to be in close contact with the inner wall, and the coating mechanism is used for roller coating to achieve uniform paint coverage.
This effectively reduced paint waste, ensured uniform coverage of the anti-corrosion coating, and improved the anti-corrosion effect of the anaerobic tower.
Smart Images

Figure CN224127607U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of anaerobic towers, and in particular to a device for applying an anti-corrosion coating to the inner wall of an anaerobic tower. Background Technology
[0002] The anaerobic tower is a cylindrical tower body made of integrally wound fiberglass, without segmented connecting flanges. The specific structure consists of the tower body, water distribution system, sludge bed, biological carrier zone, three-phase separator, scum rapid discharge device and reflux system.
[0003] Existing anaerobic tower inner wall anti-corrosion coating devices, such as the cooling tower inner wall anti-corrosion structure disclosed in utility model patent application number 202222767842.2, mainly include a drive motor, a spraying mechanism, and a sealing mechanism. The drive motor is connected to a main transmission column, and the spraying mechanism is located on the side of the main transmission column away from the drive motor. The spraying mechanism includes a lifting support frame, and a rotating storage box is provided inside the lifting support frame. The rotating storage box has a storage cavity filled with anti-corrosion emulsion. In use, the fixed support plate is first installed on the top of the cooling tower, and then the drive motor is started, which drives the main transmission column to rotate. The main transmission column then drives the transmission support column and the connecting column to rotate. The connecting column drives the rotating storage box to rotate. After the rotating storage box rotates, multiple sealing balls will generate centrifugal force, thereby allowing the sealing balls to move towards the push spring side.
[0004] However, the inner wall radius of the anaerobic tower is relatively large, and most existing spraying devices have difficulty reaching the inner wall surface of the anaerobic tower. This not only easily leads to paint waste, but also makes it difficult to spray the paint evenly, thus affecting the anti-corrosion effect of the anaerobic tower. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides an anaerobic tower inner wall anti-corrosion coating device that not only facilitates the adjustment of the device to follow the radius of the anaerobic tower, shortens the distance between the nozzle and the inner wall, and reduces paint waste, but also performs roller coating after spraying, ensuring the coverage effect of the anti-corrosion coating.
[0006] This utility model discloses an anti-corrosion coating device for the inner wall of an anaerobic tower, comprising a lifting mechanism; it also includes a rotating mechanism, an extension mechanism, a spraying mechanism, and a coating mechanism. The rotating mechanism is mounted on the lifting mechanism and drives the extension mechanism to rotate. The extension mechanism is mounted on the rotating mechanism to facilitate the spraying mechanism approaching the inner wall of the anaerobic tower. The spraying mechanism is mounted on the extension mechanism and sprays the coating onto the inner wall of the anaerobic tower. The coating mechanism is mounted on the extension mechanism and applies the coating. The operator adjusts the length of the extension mechanism according to the radius of the anaerobic tower, then starts the lifting mechanism to gradually lower the device. The spraying mechanism sprays the anti-corrosion coating onto the surface of the inner wall of the anaerobic tower. The rotating mechanism is started to drive the extension mechanism and the spraying mechanism to rotate. At the same time, the coating mechanism presses against the inner wall of the anaerobic tower and applies the coating to the sprayed inner wall to ensure the coverage effect of the anti-corrosion coating.
[0007] Preferably, the lifting mechanism includes a winch, a traction rope, a stabilizer, and a connecting frame. The bottom end of the winch is connected to the top end of the anaerobic tower. The traction rope is installed on the winch. The top end of the stabilizer is connected to the bottom end of the traction rope. The top end of the connecting frame is connected to the bottom end of the stabilizer. The winch gradually releases the traction rope. The stabilizer keeps the connecting frame stable and prevents it from rotating. The connecting frame gradually descends to facilitate the spraying mechanism to spray the inner wall of the anaerobic tower.
[0008] Preferably, the rotating mechanism includes a motor, a dual-output-shaft reducer, a first drive shaft, and a second drive shaft. The motor is mounted on a connecting frame, and the output end of the motor is connected to the input end of the dual-output-shaft reducer. The output ends of the dual-output-shaft reducer are respectively connected to the first drive shaft and the second drive shaft. When the motor is started, the motor drives the first drive shaft and the second drive shaft to rotate through the dual-output-shaft reducer.
[0009] Preferably, the extension mechanism includes a telescopic plate, ribs, and two sets of hydraulic cylinders. The top end of the telescopic plate is connected to the bottom end of the first drive shaft. The ribs are installed between the first drive shaft and the telescopic plate. Both sets of hydraulic cylinders are installed on the telescopic plate. When the two sets of hydraulic cylinders are activated, they push the telescopic plate to extend, which can easily adapt to the radius of the anaerobic tower, allowing the coating mechanism to abut against the inner wall of the anaerobic tower. The stability of the telescopic plate is improved by setting the ribs.
[0010] Preferably, the spraying mechanism includes a feed pump, a suction hose, a delivery hose, a controller, and a nozzle. The input end of the feed pump is connected to the output end of the second drive shaft. The inlet of the feed pump is connected to the inside of the suction hose, and the outlet of the feed pump is connected to the inside of the delivery hose. The controller is installed on the delivery hose, and the nozzle is installed on the top of the telescopic plate and connected to the inside of the delivery hose. The second drive shaft drives the feed pump to extract the anti-corrosion coating through the suction hose. When the controller is turned on, the anti-corrosion coating is delivered to the nozzle through the delivery hose, and the nozzle sprays the anti-corrosion coating onto the inner wall of the anaerobic tower.
[0011] Preferably, the coating mechanism includes a limiting box, a rotating shaft, a spring, an extension plate, and a coating roller. The limiting box is mounted on the telescopic plate, the rotating shaft is rotatably mounted on the limiting box, the spring is mounted on the limiting box, the extension plate is mounted on the rotating shaft and connected to one end of the spring, and the coating roller is rotatably mounted on the extension plate. The coating roller abuts against the inner wall of the anaerobic tower. The first drive shaft drives the extension mechanism and the coating mechanism to rotate. The coating roller coats the sprayed inner wall to ensure complete coverage of the anti-corrosion coating. The rotating shaft and spring facilitate the coating roller to overcome obstacles such as protrusions on the inner wall, preventing the extension plate from breaking.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the staff adjusts the length of the extension mechanism according to the radius of the anaerobic tower, and then starts the lifting mechanism to gradually lower the device. The spraying mechanism sprays the anti-corrosion coating onto the inner wall surface of the anaerobic tower. The rotating mechanism is started to drive the extension mechanism and the spraying mechanism to rotate. At the same time, the coating mechanism presses against the inner wall of the anaerobic tower to coat the inner wall after spraying, ensuring the coverage effect of the anti-corrosion coating. Attached Figure Description
[0013] Figure 1 This is a front view structural diagram of the present invention;
[0014] Figure 2 This is an isometric structural diagram of the lifting mechanism of this utility model;
[0015] Figure 3 This is a partially enlarged isometric structural diagram of the rotating mechanism and the extending mechanism of this utility model;
[0016] Figure 4 This is a partially enlarged isometric structural diagram of the spraying mechanism of this utility model;
[0017] Figure 5 This is a partially enlarged isometric structural diagram of the coating mechanism of this utility model.
[0018] The attached diagram is labeled as follows: 01, Lifting mechanism; 11, Winch; 12, Traction rope; 13, Stabilizer; 14, Connecting frame; 02, Rotating mechanism; 21, Electric motor; 22, Dual output shaft reducer; 23, First drive shaft; 24, Second drive shaft; 03, Extension mechanism; 31, Telescopic plate; 32, Rib plate; 33, Hydraulic cylinder; 04, Spraying mechanism; 41, Material pump; 42, Material extraction hose; 43, Material conveying hose; 44, Controller; 45, Nozzle; 05, Coating mechanism; 51, Limit box; 52, Rotating shaft; 53, Spring; 54, Extension plate; 55, Coating roller. Detailed Implementation
[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0020] Example 1
[0021] This utility model discloses an anti-corrosion coating device for the inner wall of an anaerobic tower, comprising a lifting mechanism 01; and a rotating mechanism 02, an extension mechanism 03, a spraying mechanism 04, and a coating mechanism 05. The rotating mechanism 02 is mounted on the lifting mechanism 01 and drives the extension mechanism 03 to rotate. The extension mechanism 03 is mounted on the rotating mechanism 02 to facilitate the spraying mechanism 04 to approach the inner wall of the anaerobic tower. The spraying mechanism 04 is mounted on the extension mechanism 03 and sprays the coating onto the inner wall of the anaerobic tower. The coating mechanism 05 is mounted on the extension mechanism 03 and applies the coating. The lifting mechanism 01 includes a winch 11, a traction rope 12, a stabilizer 13, and a connecting frame 14. The bottom end of the winch 11 is connected to the top end of the anaerobic tower, and the traction rope 12 is mounted on the winch 11. The top of the stabilizer 13 is connected to the bottom of the traction rope 12, and the top of the connecting frame 14 is connected to the bottom of the stabilizer 13. The rotating mechanism 02 includes a motor 21, a dual-output shaft reducer 22, a first drive shaft 23, and a second drive shaft 24. The motor 21 is mounted on the connecting frame 14, and the output end of the motor 21 is connected to the input end of the dual-output shaft reducer 22. The output ends of the dual-output shaft reducer 22 are respectively connected to the first drive shaft 23 and the second drive shaft 24. The extension mechanism 03 includes a telescopic plate 31, a rib plate 32, and two sets of hydraulic cylinders 33. The top of the telescopic plate 31 is connected to the bottom of the first drive shaft 23, the rib plate 32 is installed between the first drive shaft 23 and the telescopic plate 31, and the two sets of hydraulic cylinders 33... All components are installed on the telescopic plate 31. The spraying mechanism 04 includes a feed pump 41, a suction hose 42, a feed hose 43, a controller 44, and a nozzle 45. The input end of the feed pump 41 is connected to the output end of the second drive shaft 24. The inlet of the feed pump 41 is connected to the inside of the suction hose 42, and the outlet of the feed pump 41 is connected to the inside of the feed hose 43. The controller 44 is installed on the feed hose 43, and the nozzle 45 is installed on the top of the telescopic plate 31 and connected to the inside of the feed hose 43. During operation, firstly, two sets of hydraulic cylinders 33 are activated, which push the telescopic plate 31 to extend, facilitating adaptation to the radius of the anaerobic tower. This allows the coating mechanism 05 to abut against the inner wall of the anaerobic tower. The telescopic plate 32 is used to enhance the telescopic effect. To ensure the stability of plate 31, motor 21 is started. Motor 21 drives the first transmission shaft 23 and the second transmission shaft 24 to rotate through the dual output shaft reducer 22. The second transmission shaft 24 drives the feed pump 41 to extract the anti-corrosion coating through the suction hose 42. The controller 44 is turned on, and the anti-corrosion coating is delivered to the nozzle 45 through the feed hose 43. The nozzle 45 sprays the anti-corrosion coating onto the inner wall of the anaerobic tower. At the same time, the first transmission shaft 23 drives the extension mechanism 03 and the spraying mechanism 04 to rotate, which facilitates circumferential spraying. The winch 11 gradually releases the traction rope 12. The stabilizer 13 is set to keep the connecting frame 14 stable and prevent the connecting frame 14 from rotating. The connecting frame 14 gradually descends to facilitate the spraying mechanism 04 to spray the inner wall of the anaerobic tower.
[0022] Example 2
[0023] like Figures 1 to 5 As shown, this utility model discloses an anti-corrosion coating device for the inner wall of an anaerobic tower, based on Embodiment 1. The coating mechanism 05 includes a limiting box 51, a rotating shaft 52, a spring 53, an extension plate 54, and a coating roller 55. The limiting box 51 is mounted on the telescopic plate 31, the rotating shaft 52 is rotatably mounted on the limiting box 51, the spring 53 is mounted on the limiting box 51, the extension plate 54 is mounted on the rotating shaft 52 and connected to one end of the spring 53, and the coating roller 55 is rotatably mounted on the extension plate 54. During operation, firstly, two sets of hydraulic cylinders 33 are activated, which push the telescopic plate 31 to extend, facilitating adaptation to the radius of the anaerobic tower, allowing the coating mechanism 05 to abut against the inner wall of the anaerobic tower. The stability of the telescopic plate 31 is improved by setting ribs 32. Then, the motor 21 is activated, and the motor 21 drives the second extension plate 55 through a double output shaft reducer 22. The first drive shaft 23 and the second drive shaft 24 rotate. The second drive shaft 24 drives the feed pump 41 to extract the anti-corrosion coating through the feed hose 42. The controller 44 is turned on, and the anti-corrosion coating is delivered to the nozzle 45 through the feed hose 43. The nozzle 45 sprays the anti-corrosion coating onto the inner wall of the anaerobic tower. At the same time, the first drive shaft 23 drives the extension mechanism 03 and the spraying mechanism 04 to rotate, which facilitates circumferential spraying. The coating roller 55 coats the inner wall after spraying to ensure complete coverage of the anti-corrosion coating. The rotating shaft 52 and the spring 53 facilitate the coating roller 55 to overcome obstacles such as protrusions on the inner wall and prevent the extension plate 54 from breaking. The winch 11 gradually releases the traction rope 12. The stabilizer 13 keeps the connecting frame 14 stable and prevents the connecting frame 14 from rotating. The connecting frame 14 gradually descends to facilitate the spraying mechanism 04 to spray the inner wall of the anaerobic tower.
[0024] The winch 11, motor 21 and dual-output shaft reducer 22 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A device for applying an anti-corrosion coating to the inner wall of an anaerobic tower, comprising a lifting mechanism (01); characterized in that, It also includes a rotating mechanism (02), an extension mechanism (03), a spraying mechanism (04), and a coating mechanism (05). The rotating mechanism (02) is installed on the lifting mechanism (01) and drives the extension mechanism (03) to rotate. The extension mechanism (03) is installed on the rotating mechanism (02) to facilitate the spraying mechanism (04) to approach the inner wall of the anaerobic tower. The spraying mechanism (04) is installed on the extension mechanism (03) and sprays the coating onto the inner wall of the anaerobic tower. The coating mechanism (05) is installed on the extension mechanism (03) and coats the coating.
2. An apparatus for applying a corrosion resistant coating to the interior walls of an anaerobic tower as defined in claim 1, wherein, The lifting mechanism (01) includes a winch (11), a traction rope (12), a stabilizer (13), and a connecting frame (14). The bottom end of the winch (11) is connected to the top end of the anaerobic tower. The traction rope (12) is installed on the winch (11). The top end of the stabilizer (13) is connected to the bottom end of the traction rope (12). The top end of the connecting frame (14) is connected to the bottom end of the stabilizer (13).
3. An apparatus for applying a corrosion resistant coating to the interior walls of an anaerobic tower as defined in claim 2 wherein, The rotating mechanism (02) includes a motor (21), a dual-output shaft reducer (22), a first transmission shaft (23), and a second transmission shaft (24). The motor (21) is mounted on the connecting frame (14). The output end of the motor (21) is connected to the input end of the dual-output shaft reducer (22). The output ends of the dual-output shaft reducer (22) are connected to the first transmission shaft (23) and the second transmission shaft (24) respectively.
4. An apparatus for applying a corrosion resistant coating to the interior walls of an anaerobic tower as defined in claim 3 wherein, The extension mechanism (03) includes a telescopic plate (31), a rib plate (32) and two sets of hydraulic cylinders (33). The top end of the telescopic plate (31) is connected to the bottom end of the first drive shaft (23). The rib plate (32) is installed between the first drive shaft (23) and the telescopic plate (31). Both sets of hydraulic cylinders (33) are installed on the telescopic plate (31).
5. An apparatus for applying a corrosion resistant coating to the interior walls of an anaerobic tower as defined in claim 4 wherein, The spraying mechanism (04) includes a feed pump (41), a suction hose (42), a feed hose (43), a controller (44), and a nozzle (45). The input end of the feed pump (41) is connected to the output end of the second drive shaft (24). The inlet of the feed pump (41) is connected to the inside of the suction hose (42). The outlet of the feed pump (41) is connected to the inside of the feed hose (43). The controller (44) is installed on the feed hose (43). The nozzle (45) is installed on the top of the telescopic plate (31) and is connected to the inside of the feed hose (43).
6. An apparatus for applying a corrosion resistant coating to the interior walls of an anaerobic tower as defined in claim 4 wherein, The applicator (05) includes a limit box (51), a rotating shaft (52), a spring (53), an extension plate (54), and an applicator roller (55). The limit box (51) is mounted on the telescopic plate (31), the rotating shaft (52) is rotatably mounted on the limit box (51), the spring (53) is mounted on the limit box (51), the extension plate (54) is mounted on the rotating shaft (52) and connected to one end of the spring (53) by a support foot, and the applicator roller (55) is rotatably mounted on the extension plate (54).
Citation Information
Patent Citations
Anti-corrosion structure for inner wall of cooling tower
CN218655120U