Furnace roller surface foreign matter cleaning device

Abstract

The utility model relates to a furnace roller surface foreign matter cleaning device which comprises a cleaning head, a metal shell and a rotating rod. A rotating rod capable of rotating manually is arranged in the metal shell, a worm structure is arranged at the front end of the rotating rod, and a worm gear structure meshed and matched with the worm structure is arranged in the front end of the metal shell; the worm gear structure and the cleaning head are fixedly mounted, and the cleaning head can be driven to rotate by 90 degrees along with the worm gear structure when the rotating rod rotates; a movable clamping plate is arranged at the front end of the cleaning head, and when the cleaning head is perpendicular to the metal shell, the movable clamping plate is opened under the action of gravity so that the surface of the furnace roller can be cleaned conveniently. According to the device, non-stop online cleaning of the furnace roller of the annealing furnace can be realized, the treatment time of foreign matters on the roller surface of the furnace roller is greatly reduced, the cleaning head of the device can rotate, so that the length of the cleaning head entering a hole of the annealing furnace can be only 5cm, the influence on the temperature in the furnace is very small, and the overall production efficiency of a production line is improved; the adopted cleaning head is a movable clamping plate and is suitable for furnace rollers of various sizes.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning tool technology and is used in annealing furnaces. In particular, it relates to a device for cleaning foreign objects from the surface of furnace rollers. Background Technology

[0002] During the galvanizing process, the strip steel needs to be annealed in an annealing furnace. Due to the relatively short length of the annealing furnace, a certain number of furnace rollers are usually installed inside the furnace to support the movement of the strip steel. In the original production line, if foreign objects adhere to the furnace rollers, the unit needs to be stopped, the annealing furnace opened, and the foreign objects on the furnace rollers manually cleaned to avoid defects such as chromium stains.

[0003] The annealing furnace operates under high temperature and sealing conditions, with internal temperatures reaching over 800℃. The strip steel requires a protective gas to prevent oxidation within the furnace. Therefore, if foreign matter adheres to the furnace rolls, traditional open-furnace cleaning requires cooling the internal temperature, venting the protective gas, and then replacing the atmosphere and reheating. This process is extremely time-consuming, taking at least four hours from unit shutdown to restart, resulting in low efficiency and impacting production schedules. Therefore, a tool specifically designed for online cleaning of furnace roll surfaces is needed to improve production efficiency. Summary of the Invention

[0004] This utility model provides a furnace roller surface foreign matter cleaning device to solve the technical problems existing in the prior art. It can clean the furnace roller online, avoiding the cooling process and greatly improving production efficiency.

[0005] This utility model includes the following technical solution:

[0006] A furnace roller surface foreign matter cleaning device includes a cleaning head, a metal housing, and a rotating rod. The metal housing contains a manually rotatable rotating rod, the front end of which has a worm gear structure. Inside the front end of the metal housing is a worm wheel structure that meshes with the worm gear structure. The worm wheel structure is fixedly mounted to the cleaning head, and when the rotating rod rotates, it drives the cleaning head to rotate 90° with the worm wheel structure. The front end of the cleaning head has a movable clamping plate, which opens under gravity when the cleaning head is perpendicular to the metal housing, facilitating cleaning of the furnace roller surface.

[0007] Furthermore, the front end of the worm gear structure is inserted into the mounting seat on the inner wall of the front end of the metal housing, and the rear end of the worm gear structure passes through the positioning seat on the side wall of the metal housing, thereby ensuring that the worm gear structure can rotate normally when the rotating rod rotates, and will not wobble due to being too far from the point of force application.

[0008] Furthermore, the metal housing is generally rod-shaped, with the internal space at the front end of the metal housing being larger than that in the middle, in order to facilitate the installation of the worm gear structure and the cleaning head.

[0009] Furthermore, the length of the metal shell is greater than the width of the annealing furnace. During operation, the device is inserted into the furnace through the flange hole opened on the furnace wall to clean the furnace rollers online.

[0010] Furthermore, the cleaning head includes a connecting plate and a movable clamping plate. The connecting plate is located outside the metal housing and is fixed at one end to the worm gear structure, and at the other end to the mounting part of the movable clamping plate.

[0011] Furthermore, the working part and the mounting part of the movable clamp are connected by a pivot, and the maximum opening angle of the movable clamp is 150°.

[0012] Furthermore, the front end of the working part is provided with a counterweight bar so that the movable clamping plate can open under the action of gravity when it is in a vertical state; the inner side of the working part is provided with a protruding cleaning bar.

[0013] Furthermore, the cleaning strip is arranged parallel to the furnace roller and has a trapezoidal cross-section. When the furnace roller is rotating, the working part with the cleaning strip comes into contact with it, which can effectively remove foreign objects adhering to the roller body.

[0014] Furthermore, the rear end of the metal housing is provided with a first handle that can move back and forth along the outer wall of the metal housing, and the rear end of the rotating rod is provided with a fixed second handle; the protruding part of the front end of the second handle is inserted into the metal housing, and when the rotating rod turns the cleaning head to be perpendicular to the metal housing, the contact surfaces of the first handle and the second handle can engage with each other. Both the first handle and the second handle are made of heat-insulating rubber, and both surfaces are provided with anti-slip textures.

[0015] Furthermore, the cleaning head, metal housing, and rotating rod are all made of 316L heat-resistant stainless steel, thus meeting the heat resistance requirements for furnace operation.

[0016] The advantages and positive effects of this utility model are as follows:

[0017] 1. This utility model can achieve online cleaning of the annealing furnace rollers without stopping the machine, which greatly reduces the processing time of foreign objects on the roller surface. The cleaning head of this device can rotate, so the hole entering the annealing furnace can be only 5cm, which has little impact on the furnace temperature but improves the overall production efficiency of the production line.

[0018] 2. The cleaning head used in this utility model is a movable clamping plate, which can be applied to furnace rollers of various sizes; in addition, the movable clamping plate is also provided with protruding cleaning strips, which result in a good cleaning effect. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the working state of this utility model;

[0021] Figure 3 yes Figure 2 Schematic diagram of AA section in the middle;

[0022] In the diagram, 1-cleaning head; 101-connecting plate; 102-movable clamping plate; 103-counterweight bar; 104-cleaning bar; 2-metal housing; 3-rotating rod; 4-worm gear structure; 5-worm wheel structure; 6-first handle; 7-second handle; 8-mounting base; 9-positioning base. Detailed Implementation

[0023] To further disclose the invention content, features, and effects of this utility model, the following examples are provided in conjunction with the accompanying drawings for detailed description. In the following description of the embodiments, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this patent and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.

[0024] In the following description of the embodiments, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0025] Example: See Appendix Figure 1-3 A foreign matter cleaning device for furnace rollers includes a cleaning head 1, a metal housing 2, and a rotating rod 3. The cleaning head 1, metal housing 2, and rotating rod 3 are all made of 316L heat-resistant stainless steel, thus meeting the heat resistance requirements for furnace operation. The metal housing 2 is generally long and rod-shaped, with a larger internal space at the front end than in the middle to facilitate the installation of the worm gear structure 5 and the cleaning head 1. The length of the metal housing 2 is greater than the width of the annealing furnace. During operation, the device is inserted into the furnace through a flange hole in the furnace wall to clean the furnace rollers online.

[0026] The metal housing 2 is equipped with a manually rotatable rotating rod 3. The front end of the rotating rod 3 is provided with a worm gear structure 4. The front end of the worm gear structure 4 is inserted into the mounting seat 8 on the inner wall of the front end of the metal housing 2, and the rear end of the worm gear structure 4 passes through the positioning seat 9 on the side wall of the metal housing 2, thereby ensuring that the worm gear structure 4 can rotate normally when the rotating rod 3 rotates, and will not shake due to being too far away from the point of force application.

[0027] The front end of the metal shell 2 is equipped with a worm gear structure 5 that meshes with the worm structure 4. The worm gear structure 5 is fixedly mounted to the cleaning head 1. When the rotating rod 3 rotates, it can drive the cleaning head 1 to rotate 90° with the worm gear structure 5. The front end of the cleaning head 1 is a movable clamping plate 102. When the cleaning head 1 is perpendicular to the metal shell 2, the movable clamping plate 102 opens under the action of gravity to facilitate cleaning of the furnace roller surface. The cleaning head 1 includes a connecting plate 101 and a movable clamping plate 102. The connecting plate 101 is located outside the metal shell 2 and is fixedly mounted to the worm gear structure 5 at one end and to the mounting part of the movable clamping plate 102 at the other end. The working part and the mounting part of the movable clamping plate 102 are connected by a rotating shaft. The maximum opening angle of the movable clamping plate 102 is 150°. The front end of the working part is equipped with a counterweight bar 103 so that the movable clamping plate 102 can open under the action of gravity when it is in a vertical state. The inner side of the working part is equipped with a protruding cleaning bar 104. The cleaning strip 104 is arranged parallel to the furnace roller and has a trapezoidal cross-section. When the furnace roller is rotating, the working part with the cleaning strip 104 comes into contact with it, which can effectively remove foreign objects adhering to the roller body.

[0028] The rear end of the metal housing 2 is provided with a first handle 6 that can move back and forth along the outer wall of the metal housing 2. The outer wall of the rear end of the metal housing 2 is provided with a long strip-shaped protrusion, and the inner surface of the first handle 6 is provided with a groove that matches the protrusion. The rear end of the rotating rod 3 is provided with a fixed second handle 7. The protruding part of the front end of the second handle 7 is inserted into the metal housing 2. When the rotating rod 3 rotates the cleaning head 1 to be perpendicular to the metal housing 2, the contact surfaces of the first handle 6 and the second handle 7 can engage with each other. Both the first handle 6 and the second handle 7 are made of heat-insulating rubber, and both surfaces are provided with anti-slip textures.

[0029] Workflow: Drill a 50mm diameter hole in the furnace wall of the annealing furnace and seal it with a flange. Open the flange only when needed. When cleaning the furnace rollers, open the flange hole, position the cleaning head 1 at a 0° angle to the metal housing 2, and then insert it into the furnace. After entering the furnace, adjust the cleaning head 1 to 90° with the metal housing 2 and secure it using the first handle 6 and the second handle 7. Place the cleaning head 1 firmly against the roller surface and clean it. After cleaning, adjust the cleaning head 1 to 0° with the metal housing 2, pull it out of the furnace, and seal the flange.

[0030] Although preferred embodiments have been described above, the invention is not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other modifications based on the guidance of this solution without departing from the spirit and scope of the claims. These modifications all fall within the protection scope of this invention.

Claims

1. A device for cleaning foreign matter from the surface of furnace rollers, characterized in that: The device includes a cleaning head, a metal housing, and a rotating rod. The metal housing contains a manually rotatable rotating rod, the front end of which has a worm gear structure. Inside the front end of the metal housing is a worm wheel structure that meshes with the worm gear structure. The worm wheel structure is fixedly attached to the cleaning head, and when the rotating rod rotates, it drives the cleaning head to rotate 90° with the worm wheel structure. The front end of the cleaning head has a movable clamping plate, which opens under gravity when the cleaning head is perpendicular to the metal housing.

2. The furnace roller surface foreign matter cleaning device according to claim 1, characterized in that: The front end of the worm gear structure is inserted into the mounting seat on the inner wall of the front end of the metal housing, and the rear end of the worm gear structure passes through the positioning seat on the side wall of the metal housing.

3. The furnace roller surface foreign matter cleaning device according to claim 1, characterized in that: The metal casing is generally rod-shaped, with the internal space at the front end being larger than that in the middle.

4. The furnace roller surface foreign matter cleaning device according to claim 3, characterized in that: The length of the metal shell is greater than the width of the annealing furnace. During operation, the device is inserted into the furnace through the flange hole opened on the furnace wall to clean the furnace rollers online.

5. The furnace roller surface foreign matter cleaning device according to claim 1, characterized in that: The cleaning head includes a connecting plate and a movable clamping plate. The connecting plate is located outside the metal housing and is fixed at one end to the worm gear structure, and at the other end to the mounting part of the movable clamping plate.

6. The furnace roller surface foreign matter cleaning device according to claim 5, characterized in that: The working part and the mounting part of the movable clamp are connected by a pivot, and the maximum opening angle of the movable clamp is 150°.

7. The furnace roller surface foreign matter cleaning device according to claim 6, characterized in that: The front end of the working part is provided with a counterweight bar; the inner side of the working part is provided with a protruding cleaning bar.

8. The furnace roller surface foreign matter cleaning device according to claim 7, characterized in that: The cleaning strip is arranged parallel to the furnace roller and has a trapezoidal cross-section.

9. A foreign matter cleaning device for furnace roller surface according to any one of claims 1-8, characterized in that: The rear end of the metal housing is provided with a first handle that can move back and forth along the outer wall of the metal housing, and the rear end of the rotating rod is provided with a fixed second handle; the protruding part of the front end of the second handle is inserted into the metal housing, and when the rotating rod turns the cleaning head to be perpendicular to the metal housing, the contact surfaces of the first handle and the second handle can engage with each other.

10. A foreign matter cleaning device for furnace roller surface according to claim 9, characterized in that: The cleaning head, metal housing, and rotating rod are all made of 316L heat-resistant stainless steel.

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