Ash deposition prevention self-cleaning mechanism for thermal power plant

Abstract

The invention relates to the technical field of thermal power plant maintenance, in particular to an ash deposition prevention self-cleaning mechanism for a thermal power plant. According to the technical scheme, the ash deposition prevention self-cleaning mechanism for the thermal power plant comprises a lifting driving part, an annular rail is installed at the lifting end of the lifting driving part, a movable sliding table is installed on the annular rail in a sliding mode, an upper shovel plate is installed at the bottom of the movable sliding table, and the upper shovel plate is in an arc shape; the outer convex surface of the upper shovel plate is attached to the inner wall of the reaction tower to clean accumulated dust; an arc-shaped scraping strip is arranged at the top of the outer convex surface of the upper shovel plate; a mounting strip-shaped plate is fixedly connected to the bottom of the movable sliding table, two first mounting rods are mounted at the bottom of the mounting strip-shaped plate, and an upper shovel plate is mounted at the bottoms of the two first mounting rods; a lower shovel plate is arranged at the bottom of the upper shovel plate. According to the device, the accumulated dust on the inner wall of the reaction tower is automatically shoveled and cleaned, the operation of manually shoveling the accumulated dust at high altitude is omitted, the accumulated dust cleaning efficiency is improved, the operation efficiency is improved, and the safety is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal power plant maintenance, in particular to a dust accumulation prevention and self-cleaning mechanism for thermal power plants. Background Art

[0002] During thermal power plant operation, the inner walls of the reactor towers are exposed to high-temperature flue gas and dust for extended periods, which can easily lead to the formation of dust deposits. Traditional cleaning methods often rely on manual labor at height, requiring operators to access the towers using lifting equipment and perform localized cleaning using handheld shovels or high-pressure water cannons. This approach is associated with low efficiency, long cycle times, and significant safety risks.

[0003] In the prior art, it often requires several workers to cooperate with each other to remove the dust accumulation. For stubborn dust accumulation, repeated cleaning or manual intervention is often required, which is inefficient and cannot achieve efficient dust cleaning. Summary of the Invention

[0004] The present invention proposes a self-cleaning mechanism for preventing dust accumulation in thermal power plants, which solves the problem that conventional techniques often require the cooperation of several workers to remove dust accumulation. For stubborn dust accumulation, repeated cleaning or manual intervention are often required, resulting in low cleaning efficiency and inability to achieve efficient dust removal.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A dust-prevention self-cleaning mechanism for a thermal power plant includes a lifting drive component, a lifting end of the lifting drive component is provided with a circular track, a movable slide is slidably provided on the circular track, an upper shovel plate is provided at the bottom of the movable slide, the upper shovel plate is arc-shaped, and the outer convex surface of the upper shovel plate fits against the inner wall of the reaction tower to clean the accumulated dust.

[0007] Furthermore, an arc-shaped scraper strip is provided on the top of the outer convex surface of the upper shovel plate.

[0008] Furthermore, a mounting strip plate is fixedly connected to the bottom of the movable slide, two first mounting rods are installed on the bottom of the mounting strip plate, and the upper shovel plate is installed on the bottom of the two first mounting rods.

[0009] Furthermore, a lower shovel plate is provided at the bottom of the upper shovel plate.

[0010] Furthermore, a plurality of equally spaced inserting teeth are provided on the lower portion of the lower shovel plate, and the curvature of the lower shovel plate is the same as that of the upper shovel plate.

[0011] Furthermore, the outer convex surface of the lower shovel plate is flush with the outer convex surface of the upper shovel plate.

[0012] Furthermore, it also includes an outward expansion control component, which includes a telescopic drive member, a connecting rod and a first linkage rod. The fixed end of the telescopic drive member is hinged to the mounting strip plate, and the telescopic end of the telescopic drive member is rotatably connected to the connecting rod. The two ends of the connecting rod are connected to two first linkage rods, and the lower ends of the two first linkage rods are connected to the lower shovel plate. The upper side of the lower shovel plate is movably connected to the upper shovel plate through two connecting components.

[0013] Furthermore, the connecting assembly includes a second linkage rod and a third linkage rod, the first end of the second linkage rod is fixedly connected to the upper shovel plate, the second end of the second linkage rod is hinged to the first end of the third linkage rod, and the second end of the third linkage rod is hinged to the upper part of the lower shovel plate.

[0014] Furthermore, the second end of the second linkage rod is hinged to the first end of the third linkage rod through a torsion spring shaft.

[0015] Furthermore, it also includes a plug-in fixing component, which includes a telescopic plug-in column. A plurality of the telescopic plug-in columns are provided at the bottom end of the upper shovel plate, and a plurality of fixing sockets corresponding to the telescopic plug-in columns are provided at the top end of the lower shovel plate.

[0016] The positive effect of the present invention is that the lifting drive member drives the entire body to move downward, that is, the upper shovel plate moves downward in contact with the inner wall, and the accumulated dust on the inner wall is scraped downward. Thus, the automatic scraping and cleaning of the accumulated dust on the inner wall of the reaction tower is realized, the operation of manual high-altitude scraping of accumulated dust is eliminated, the efficiency of cleaning accumulated dust is improved, the operating efficiency is improved, and the safety is greatly improved.

[0017] The lower shovel plate uses its bottom as a fulcrum, and the upper part of the lower shovel plate is extended and pushed outward by the telescopic drive member, thereby forming an outward prying effect of the lever, and then the lower shovel plate can pry and separate the thick accumulated dust away from the inner wall of the reaction tower, thereby achieving rapid separation of thicker accumulated dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the anti-dust accumulation self-cleaning mechanism for a thermal power plant according to the present invention from a first perspective;

[0019] Figure 2 This is a schematic structural diagram of the anti-dust accumulation self-cleaning mechanism for a thermal power plant according to the present invention from a second perspective;

[0020] Figure 3 This is a schematic diagram of the first partial structure of the anti-dust accumulation self-cleaning mechanism for a thermal power plant according to the present invention;

[0021] Figure 4 This is a schematic diagram of the second partial structure of the anti-dust accumulation self-cleaning mechanism for a thermal power plant according to the present invention;

[0022] Figure 5 This is a schematic diagram of the third partial structure of the dust accumulation prevention and self-cleaning mechanism for a thermal power plant according to the present invention;

[0023] Figure 6 This is a schematic diagram of the fourth partial structure of the dust accumulation prevention and self-cleaning mechanism for a thermal power plant according to the present invention;

[0024] Figure 7 Schematic diagram of the connection assembly structure in the present invention;

[0025] Figure 8 This is a schematic diagram of the fifth partial structure of the dust accumulation prevention and self-cleaning mechanism for a thermal power plant according to the present invention;

[0026] In the picture:

[0027] 1. Annular track; 2. Moving slide; 3. Installing strip plate; 4. First installing rod; 5. Upper shovel plate; 6. Scraper strip; 7. Telescopic drive member; 8. Connecting rod; 9. First linkage rod; 10. Lower shovel plate; 11. Second linkage rod; 12. Third linkage rod; 13. Torsion spring shaft seat; 14. Telescopic plug column. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] Example 1

[0030] Combine Figure 1-8 As shown, a dust-prevention self-cleaning mechanism for a thermal power plant includes a lifting drive component, a lifting end of the lifting drive component is installed with a ring track 1, a movable slide 2 is slidably installed on the ring track 1, and an upper shovel plate 5 is installed at the bottom of the movable slide 2. The upper shovel plate 5 is arc-shaped, and the outer convex surface of the upper shovel plate 5 fits against the inner wall of the reaction tower to clean the accumulated dust.

[0031] A mounting strip plate 3 is fixed to the bottom of the movable slide 2 . Two first mounting rods 4 are mounted on the bottom of the mounting strip plate 3 . An upper shovel plate 5 is mounted on the bottom of the two first mounting rods 4 .

[0032] In this embodiment, when using the anti-dust self-cleaning mechanism for the thermal power plant, the lifting drive is arranged to the designated position, and the annular track 1 and other parts are installed. Then the sliding platform 2 is moved on the annular track 1 to the position where the dust is to be cleaned. At this time, the upper shovel plate 5 is attached to the inner wall of the reaction tower, and then the lifting drive drives the whole to move downward, that is, the upper shovel plate 5 moves downward in contact with the inner wall to scrape off the dust on the inner wall. In this way, the automatic scraping and cleaning of the dust on the inner wall of the reaction tower is realized, eliminating the operation of manual high-altitude dust scraping, improving the efficiency of cleaning the dust, improving the operating efficiency, and greatly improving the safety.

[0033] An arc-shaped scraper 6 is provided on the top of the convex surface of the upper shovel plate 5, so that when the upper shovel plate 5 moves downward, after scraping off the accumulated dust, the scraper 6 will further scrape the surface after the dust is scraped off, and scrape off the remaining dust, further improving the dust removal effect.

[0034] Example 2

[0035] Combine Figure 1-8 As shown, the difference between this embodiment and embodiment 1 is that a lower shoveling plate 10 is provided at the bottom of the upper shoveling plate 5 .

[0036] The lower portion of the lower shovel plate 10 is provided with a plurality of equally spaced inserting teeth, and the curvature of the lower shovel plate 10 is the same as that of the upper shovel plate 5 .

[0037] The outer convex surface of the lower shovel plate 10 is flush with the outer convex surface of the upper shovel plate 5 .

[0038] The dust accumulation on some parts of the inner wall of the reaction tower is relatively thick. In order to enable the upper shovel plate 5 to be smoothly inserted between the dust accumulation and the inner wall of the reaction tower when moving downward, a lower shovel plate 10 is provided. The inserting teeth at the bottom of the lower shovel plate 10 can be directly inserted into the interior of the dust accumulation and shoveled off from the inner wall of the reaction tower, thereby improving the cleaning effect of thicker dust accumulation.

[0039] It also includes an outward-turning control component, which includes a telescopic drive member 7, a connecting rod 8 and a first linkage rod 9. The fixed end of the telescopic drive member 7 is hinged on the mounting strip plate 3, and the telescopic end of the telescopic drive member 7 is rotatably connected to the connecting rod 8. The two ends of the connecting rod 8 are connected to two first linkage rods 9. The lower ends of the two first linkage rods 9 are connected to the lower shovel plate 10, and the upper side of the lower shovel plate 10 is movably connected to the upper shovel plate 5 through two connecting components.

[0040] In this embodiment, for dust accumulation that is very thick and difficult to be directly scraped off downwards, after the lower shovel plate 10 is inserted into the space between the dust accumulation and the inner wall of the reaction tower, the dust accumulation cannot be directly scraped off downwards due to its large thickness. At this time, the telescopic drive member 7 is extended to push the connecting rod 8, the first linkage rod 9 and the lower shovel plate 10 outwards. Since the lower end of the lower shovel plate 10 is inserted into the position between the dust accumulation and the inner wall of the reaction tower at this time, the lower shovel plate 10 uses its bottom as a fulcrum, and the upper part of the lower shovel plate 10 is extended and pushed outwards by the telescopic drive member 7, thereby forming an effect of the lever prying outwards, and then the lower shovel plate 10 can pry and separate the thick dust accumulation in the direction away from the inner wall of the reaction tower, thereby achieving rapid separation of thicker dust accumulation.

[0041] The connecting assembly includes a second linkage rod 11 and a third linkage rod 12. The first end of the second linkage rod 11 is fixedly connected to the upper shovel plate 5, the second end of the second linkage rod 11 is hinged to the first end of the third linkage rod 12, and the second end of the third linkage rod 12 is hinged to the upper part of the lower shovel plate 10.

[0042] The second end of the second linkage rod 11 is hinged to the first end of the third linkage rod 12 via a torsion spring shaft.

[0043] It also includes a plug-in fixing component, which includes a telescopic plug-in column 14. A plurality of telescopic plug-in columns 14 are provided at the bottom end of the upper shovel plate 5, and a plurality of fixed sockets corresponding to the telescopic plug-in columns 14 are provided at the top end of the lower shovel plate 10.

[0044] Under normal circumstances, the lower shovel plate 10 is located below the upper shovel plate 5. At this time, the telescopic pin 14 is inserted into the fixed socket, and the upper shovel plate 5 and the lower shovel plate 10 are in a fixed state. When the lower shovel plate 10 needs to be pried outward, the telescopic pin 14 is pulled out from the fixed socket, and the lower shovel plate 10 can be rotated outward.

[0045] During the process of prying the lower shovel plate 10 outward, the second linkage rod 11 and the third linkage rod 12 will move synchronously. When the telescopic drive part 7 contracts, the elastic force of the torsion spring shaft seat 13 will drive the lower shovel plate 10 to reset through the third linkage rod 12. After resetting, the telescopic plug 14 is inserted into the fixed socket to complete the fixation again, thereby realizing the switching between fixed and movable lower shovel plate 10.

[0046] The above-mentioned embodiments are described in a relatively detailed and specific manner, expressing preferred embodiments of the present invention. They are only used to illustrate the technical ideas and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. However, they are not limited to the present invention alone, and the patent scope of the present invention cannot be limited solely by these embodiments. That is, any equivalent changes or modifications made to the spirit disclosed by the present invention, for researchers or technicians in this field, without departing from the structure of the present invention, local improvements within the system and changes and conversions between subsystems, etc., are still within the patent scope of the present invention.

Claims

1. A dust-prevention self-cleaning mechanism for a thermal power plant, characterized in that: The invention comprises a lifting drive member, wherein a ring track (1) is installed at the lifting end of the lifting drive member, a movable slide (2) is slidably installed on the ring track (1), an upper shovel plate (5) is installed at the bottom of the movable slide (2), and the upper shovel plate (5) is arc-shaped, and the outer convex surface of the upper shovel plate (5) is in contact with the inner wall of the reaction tower to clean the accumulated dust.

2. The anti-dust self-cleaning mechanism for a thermal power plant according to claim 1, characterized in that: An arc-shaped scraping strip (6) is provided on the top of the outer convex surface of the upper shovel plate (5).

3. The anti-dust self-cleaning mechanism for a thermal power plant according to claim 2, characterized in that: The bottom of the movable slide (2) is fixedly connected with a mounting strip plate (3), the bottom of the mounting strip plate (3) is installed with two first mounting rods (4), and the upper shovel plate (5) is installed at the bottom of the two first mounting rods (4).

4. The anti-dust accumulation self-cleaning mechanism for a thermal power plant according to claim 3, characterized in that: A lower shoveling plate (10) is provided at the bottom of the upper shoveling plate (5).

5. The dust accumulation prevention and self-cleaning mechanism for a thermal power plant according to claim 4, characterized in that: The lower portion of the lower shovel plate (10) is provided with a plurality of equally spaced inserting teeth, and the curvature of the lower shovel plate (10) is the same as that of the upper shovel plate (5).

6. The dust accumulation prevention and self-cleaning mechanism for a thermal power plant according to claim 5, characterized in that: The outer convex surface of the lower shovel plate (10) is flush with the outer convex surface of the upper shovel plate (5).

7. The dust accumulation prevention and self-cleaning mechanism for a thermal power plant according to claim 6, characterized in that: It also includes an outward-turning control component, which includes a telescopic drive member (7), a connecting rod (8) and a first linkage rod (9). The fixed end of the telescopic drive member (7) is hinged on the mounting strip plate (3), and the telescopic end of the telescopic drive member (7) is rotatably connected to the connecting rod (8). The two ends of the connecting rod (8) are connected to two first linkage rods (9), and the lower ends of the two first linkage rods (9) are connected to the lower shovel plate (10). The upper side of the lower shovel plate (10) is movably connected to the upper shovel plate (5) through two connecting components.

8. The dust accumulation prevention and self-cleaning mechanism for a thermal power plant according to claim 7, characterized in that: The connecting assembly includes a second linkage rod (11) and a third linkage rod (12), wherein the first end of the second linkage rod (11) is fixedly connected to the upper shovel plate (5), the second end of the second linkage rod (11) is hinged to the first end of the third linkage rod (12), and the second end of the third linkage rod (12) is hinged to the upper part of the lower shovel plate (10).

9. The dust accumulation prevention and self-cleaning mechanism for a thermal power plant according to claim 8, characterized in that: The second end of the second linkage rod (11) is hinged to the first end of the third linkage rod (12) via a torsion spring shaft.

10. The dust accumulation prevention and self-cleaning mechanism for a thermal power plant according to claim 9, characterized in that: It also includes a plug-in fixing component, which includes a telescopic plug-in column (14). The bottom end of the upper shovel plate (5) is provided with a plurality of the telescopic plug-in columns (14), and the top end of the lower shovel plate (10) is provided with a plurality of fixing sockets corresponding to the telescopic plug-in columns (14).

Images