Inner wall cleaning mechanism for hot galvanizing continuous annealing furnace

Abstract

The utility model relates to the technical field of annealing furnace cleaning, in particular to an inner wall cleaning mechanism for a hot galvanizing continuous annealing furnace, which comprises an annealing furnace body, a movable support arranged on the surface of the annealing furnace body, and a driving roller fixedly mounted on the surface of the movable support. A first motor is fixedly connected to the surface of the movable support. The driving roller slides on the outer wall of the annealing furnace body, the whole movable support can be driven to move on the top of the annealing furnace body along a circular path by matching with the upper supporting roller and the lower supporting roller, and the composite piston cylinder drives the guide plate and the scraper to ascend and descend in the annealing furnace body through the multi-stage piston rod. Therefore, the scraping plate can move on the inner wall of the annealing furnace body along the spiral path, carbon deposits in the annealing furnace body are all scraped off in the moving process of the scraping plate, the carbon deposits on the inner wall of the annealing furnace body are cleared away in a time-saving and labor-saving mode, and potential safety hazards are avoided.

Description

Technical Field

[0001] This utility model relates to the field of annealing furnace cleaning technology, specifically to an inner wall cleaning mechanism for a hot-dip galvanizing continuous annealing furnace. Background Technology

[0002] During the production process of hot-dip galvanizing continuous annealing furnace, zinc vapor reacts with oxygen in the furnace atmosphere at high temperature to generate solid zinc oxide, which gradually deposits on the furnace wall to form carbon deposits.

[0003] Carbon deposits on the inner wall of an annealing furnace are usually cleaned by manually scraping the furnace, which is inefficient, labor-intensive, and poses many safety hazards. Therefore, an inner wall cleaning mechanism for hot-dip galvanizing continuous annealing furnaces was designed. Utility Model Content

[0004] The purpose of this utility model is to provide an inner wall cleaning mechanism for a hot-dip galvanizing continuous annealing furnace, so as to solve the problems mentioned in the background art of carbon accumulation on the inner wall of existing annealing furnaces, which are characterized by low efficiency, high labor intensity, and many safety hazards due to manual cleaning.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an inner wall cleaning mechanism for a continuous hot-dip galvanizing annealing furnace, comprising an annealing furnace body, a movable support provided on the surface of the annealing furnace body, a drive roller fixedly mounted on the surface of the movable support, a first motor fixedly connected to the surface of the movable support, a drive rod fixedly connected to the output shaft of the first motor, the drive rod fixedly connected to the rolling end of the drive roller, a support roller fixedly connected to the surface of the movable support, a second motor fixedly connected to the surface of the annealing furnace body, a lead screw fixedly connected to the output shaft of the second motor, a square nut threadedly connected to the surface of the lead screw, a composite piston cylinder fixedly connected to the bottom of the square nut, a limit roller fixedly mounted on the surface of the composite piston cylinder, a guide plate fixedly connected to the piston end of the composite piston cylinder, a spring fixedly connected to the surface of the guide plate, a scraper fixedly connected to the surface of the spring, and the scraper slidably connected to the surface of the guide plate.

[0006] Preferably, the movable support is L-shaped, and two sets of drive rollers are provided, with the rolling ends of the two sets of drive rollers contacting and connecting to the outer wall of the annealing furnace body.

[0007] Preferably, the first motor drives the drive rod to rotate via the output shaft, and the drive rod drives the rolling ends of the two sets of drive rollers to roll on the outer wall of the annealing furnace body.

[0008] Preferably, the rolling end of the support roller is in contact with the top of the annealing furnace body, the annealing furnace body supports the movable support through the support roller, and the support roller rolls along a circular path at the top of the movable support.

[0009] Preferably, a guide hole is provided on the surface of the movable bracket, and the second motor drives the lead screw to rotate through the output shaft. The lead screw drives the square nut to slide on the guide hole of the movable bracket through rotation.

[0010] Preferably, the square nut drives the composite piston cylinder and the limiting roller to slide synchronously. There are two sets of limiting rollers, and the rolling ends of the two sets of limiting rollers are in contact with the inner wall of the annealing furnace body. The composite piston cylinder adjusts the guide plate to move up and down inside the annealing furnace body through the piston rod.

[0011] Preferably, a guide groove is formed on the surface of the guide plate, the spring is located on the guide groove of the guide plate, and the guide plate is provided with multiple sets, the scraper slides on the guide groove of the guide plate, and the elastic force of the spring acts on the scraper.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This cleaning mechanism uses the output shaft of the first motor to drive the drive rod to rotate. The drive rod can slide on the outer wall of the annealing furnace body through the rolling end of the drive roller. In conjunction with the support roller, it can drive the entire moving bracket to move along a circular path at the top of the annealing furnace body. The compound piston cylinder drives the guide plate and scraper to rise and fall inside the annealing furnace body through the multi-stage piston rod. This allows the scraper to move along a spiral path on the inner wall of the annealing furnace body. During the movement, the scraper scrapes off all the carbon deposits inside the annealing furnace body, making the cleaning of carbon deposits on the inner wall of the annealing furnace body time-saving and labor-saving, and avoiding safety hazards.

[0014] 2. This cleaning mechanism places the rolling end of the drive roller on the outer wall of the annealing furnace body, and the rolling end of the second motor on the bottom of the annealing furnace body. The output shaft of the second motor drives the lead screw to rotate, and the lead screw rotates to move the square nut. The square nut drives the composite piston cylinder and the limiting roller to move towards the inner wall of the annealing furnace body, so that the rolling end of the limiting roller contacts the inner wall of the annealing furnace body, thereby realizing the installation of the cleaning mechanism on the annealing furnace body. The position of the limiting roller can be adjusted according to the wall thickness of the annealing furnace body, which improves the adaptability of the cleaning mechanism. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0016] Figure 2This is a three-dimensional cross-sectional view of the structure of this utility model;

[0017] Figure 3 This is a frontal and rear-view perspective schematic diagram of the cleaning mechanism of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0019] Figure 5 This is a frontal sectional perspective view of the guide plate structure of this utility model.

[0020] In the diagram: 1. Annealing furnace body; 2. Movable support; 21. Drive roller; 22. First motor; 23. Drive rod; 24. Support roller; 25. Second motor; 26. Lead screw; 27. Square nut; 3. Composite piston cylinder; 31. Guide plate; 32. Spring; 33. Scraper; 34. Limiting roller. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 One embodiment provided by this utility model:

[0023] An inner wall cleaning mechanism for a continuous hot-dip galvanizing annealing furnace includes an annealing furnace body 1, a movable support 2 disposed on the surface of the annealing furnace body 1, a drive roller 21 fixedly mounted on the surface of the movable support 2, a first motor 22 fixedly connected to the surface of the movable support 2, a drive rod 23 fixedly connected to the output shaft of the first motor 22, the drive rod 23 fixedly connected to the rolling end of the drive roller 21, a support roller 24 fixedly connected to the surface of the movable support 2, a second motor 25 fixedly connected to the surface of the annealing furnace body 1, and a lead screw fixedly connected to the output shaft of the second motor 25. 26. A square nut 27 is threaded onto the surface of the lead screw 26. A compound piston cylinder 3 is fixedly connected to the bottom of the square nut 27. A limit roller 34 is fixedly installed on the surface of the compound piston cylinder 3. A guide plate 31 is fixedly connected to the piston end of the compound piston cylinder 3. A spring 32 is fixedly connected to the surface of the guide plate 31. A scraper 33 is fixedly connected to the surface of the spring 32. The scraper 33 is slidably connected to the surface of the guide plate 31. This cleaning machine uses the scraper 33 to clean the carbon deposits inside the annealing furnace body 1 without manual operation, saving time and effort while avoiding safety hazards.

[0024] Furthermore, the movable support 2 is L-shaped, and two sets of drive rollers 21 are provided. The rolling ends of the two sets of drive rollers 21 are in contact with the outer wall of the annealing furnace body 1. The drive rollers 21 drive the movable support 2 to slide on the surface of the annealing furnace body 1, and the sliding path is circular.

[0025] Furthermore, the first motor 22 drives the drive rod 23 to rotate via the output shaft. The drive rod 23 drives the rolling ends of the two sets of drive rollers 21 to roll on the outer wall of the annealing furnace body 1. The drive rollers 21 and the limiting rollers 34 are symmetrical on the annealing furnace body 1. The limiting rollers 34 ensure the sliding path of the drive rollers 21 on the outer surface of the annealing furnace body 1, so that the drive rollers 21 can always drive the moving bracket 2 to move along a circular path on the annealing furnace body 1.

[0026] Furthermore, the rolling end of the support roller 24 is connected to the top of the annealing furnace body 1. The annealing furnace body 1 supports the movable support 2 through the support roller 24. The support roller 24 rolls along a circular path on the top of the movable support 2. During the support process, the support roller 24 ensures the stability of the movable support 2 on the annealing furnace body 1, thereby making the drive rod 23 and the compound piston cylinder 3 parallel to each other.

[0027] Furthermore, a guide hole is provided on the surface of the movable bracket 2. The second motor 25 drives the lead screw 26 to rotate through the output shaft. The lead screw 26 drives the square nut 27 to slide on the guide hole of the movable bracket 2 through rotation. After the lead screw 26 has rotated, it is locked by the self-locking mechanism inside the second motor 25, thereby restricting the position of the square nut 27 on the guide hole of the movable bracket 2.

[0028] Furthermore, the square nut 27 drives the composite piston cylinder 3 and the limiting roller 34 to slide synchronously. There are two sets of limiting rollers 34, and the rolling ends of the two sets of limiting rollers 34 are in contact with the inner wall of the annealing furnace body 1. The limiting roller 34, the driving roller 21 and the supporting roller 24 ensure that the moving bracket 2 slides stably along the circle at the top of the annealing furnace body 1. The composite piston cylinder 3 adjusts the guide plate 31 to rise and fall inside the annealing furnace body 1 through the piston rod. The composite piston cylinder 3 achieves precise control of piston movement by segmented air intake and exhaust through multi-stage piston rods, so that the guide plate 31 can descend to the bottom of the annealing furnace body 1.

[0029] Furthermore, a guide groove is provided on the surface of the guide plate 31, and the spring 32 is located on the guide groove of the guide plate 31. The guide plate 31 is provided with multiple sets of guides, and the scraper 33 slides on the guide groove of the guide plate 31. The elastic force of the spring 32 acts on the scraper 33, so that one end of the scraper 33 slides to contact and connect with the inner wall of the annealing furnace body 1. The scraper 33 can not only follow the moving bracket 2 to move along a circular path, but also can be raised and lowered on the multi-stage piston rod of the composite piston cylinder 3.

[0030] Working principle: The rolling end of the drive roller 21 is placed on the outer wall of the annealing furnace body 1, and the rolling end of the second motor 25 is placed at the bottom of the annealing furnace body 1. The output shaft of the second motor 25 drives the lead screw 26 to rotate. The rotation of the lead screw 26 drives the square nut 27 to move. The square nut 27 drives the compound piston cylinder 3 and the limiting roller 34 to move towards the inner wall of the annealing furnace body 1, so that the rolling end of the limiting roller 34 contacts the inner wall of the annealing furnace body 1. The compound piston cylinder 3 drives the guide plate 31 to move towards the inner wall of the annealing furnace body 1. The guide plate 31 drives the scraper 33 to press against the inner wall of the annealing furnace body 1, so that the spring 32 slides into the guide groove of the guide plate 31 and is compressed, so that the spring 32 forms a preload, ensuring the spring 32. The scraper 33 is pressed against the inner wall of the annealing furnace body 1 to remove carbon deposits. At this time, the output shaft of the first motor 22 drives the drive rod 23 to rotate. The drive rod 23 can slide on the outer wall of the annealing furnace body 1 through the rolling end of the drive roller 21. With the support roller 24, the entire moving bracket 2 can move along a circular path at the top of the annealing furnace body 1. The compound piston cylinder 3 drives the guide plate 31 and the scraper 33 to rise and fall inside the annealing furnace body 1 through the multi-stage piston rod. This allows the scraper 33 to move along a spiral path on the inner wall of the annealing furnace body 1. During the movement, the scraper 33 scrapes off all the carbon deposits inside the annealing furnace body 1, making the cleaning of carbon deposits on the inner wall of the annealing furnace body 1 time-saving and labor-saving, and avoiding safety hazards.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An inner wall cleaning mechanism for a continuous hot-dip galvanizing annealing furnace, comprising an annealing furnace body (1), characterized in that: The annealing furnace body (1) has a movable support (2) on its surface. A drive roller (21) is fixedly mounted on the surface of the movable support (2). A first motor (22) is fixedly connected to the surface of the movable support (2). A drive rod (23) is fixedly connected to the output shaft of the first motor (22). The drive rod (23) is fixedly connected to the rolling end of the drive roller (21). A support roller (24) is fixedly connected to the surface of the movable support (2). A second motor (25) is fixedly connected to the surface of the annealing furnace body (1). A lead screw (26) is fixedly connected to the output shaft. A square nut (27) is threaded onto the surface of the lead screw (26). A compound piston cylinder (3) is fixedly connected to the bottom of the square nut (27). A limit roller (34) is fixedly installed on the surface of the compound piston cylinder (3). A guide plate (31) is fixedly connected to the piston end of the compound piston cylinder (3). A spring (32) is fixedly connected to the surface of the guide plate (31). A scraper (33) is fixedly connected to the surface of the spring (32). The scraper (33) is slidably connected to the surface of the guide plate (31).

2. The inner wall cleaning mechanism for a continuous hot-dip galvanizing annealing furnace according to claim 1, characterized in that: The movable support (2) is L-shaped, and there are two sets of drive rollers (21), with the rolling ends of the two sets of drive rollers (21) in contact with the outer wall of the annealing furnace body (1).

3. The inner wall cleaning mechanism for a continuous hot-dip galvanizing annealing furnace according to claim 1, characterized in that: The first motor (22) drives the drive rod (23) to rotate through the output shaft. The drive rod (23) drives the rolling ends of the two sets of drive rollers (21) to roll on the outer wall of the annealing furnace body (1).

4. The inner wall cleaning mechanism for a continuous hot-dip galvanizing annealing furnace according to claim 1, characterized in that: The rolling end of the support roller (24) is connected to the top of the annealing furnace body (1). The annealing furnace body (1) supports the movable support (2) through the support roller (24). The support roller (24) rolls along a circular path on the top of the movable support (2).

5. The inner wall cleaning mechanism for a continuous hot-dip galvanizing annealing furnace according to claim 1, characterized in that: The movable bracket (2) has a guide hole on its surface. The second motor (25) drives the lead screw (26) to rotate through the output shaft. The lead screw (26) drives the square nut (27) to slide on the guide hole of the movable bracket (2) by rotation.

6. The inner wall cleaning mechanism for a continuous hot-dip galvanizing annealing furnace according to claim 1, characterized in that: The square nut (27) drives the composite piston cylinder (3) and the limiting roller (34) to slide synchronously. There are two sets of limiting rollers (34), and the rolling ends of the two sets of limiting rollers (34) are connected to the inner wall of the annealing furnace body (1). The composite piston cylinder (3) moves the guide plate (31) up and down inside the annealing furnace body (1) through the piston rod.

7. The inner wall cleaning mechanism for a continuous hot-dip galvanizing annealing furnace according to claim 6, characterized in that: The guide plate (31) has a guide groove on its surface. The spring (32) is located on the guide groove of the guide plate (31). The guide plate (31) is provided with multiple sets of springs. The scraper (33) slides on the guide groove of the guide plate (31). The elastic force of the spring (32) acts on the scraper (33).

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