Coal pipe scraper

Abstract

The utility model discloses a kind of coal falling pipe coal scraper, including turntable, rotating device, steel cable type pushing mechanism, telescopic mechanism and cleaning brush component;The steel cable type pushing mechanism is located in turntable;The telescopic mechanism one end is connected cleaning brush component, the other end is connected turntable;The steel cable type pushing mechanism is used to drive telescopic mechanism telescopic;The cleaning brush component is used to extend into coal falling pipe, and contact with the inner wall of coal falling pipe;The turntable is connected rotating device, and the rotating device is used to drive turntable rotation, to drive cleaning brush component rotation. The technical effect obtained by the above setting is: using the rotation of turntable, and steel cable type pushing mechanism pushes telescopic mechanism, the inner wall of coal falling pipe with multiple bending can be realized to be quickly cleaned, and the adaptability is high.

Description

Technical Field

[0001] This utility model patent relates to the field of coal chute maintenance, and in particular to a coal scraper for a coal chute. Background Technology

[0002] Due to factors such as coal type, coal quality, storage time, and coal moisture content, coal powder often adheres and clumps on the inner wall of the coal chute, causing blockage. This not only affects the normal transportation of coal but also has a negative impact on the entire production process, such as causing coal feeder interruptions and affecting the stability, continuity, and accuracy of boiler combustion.

[0003] In the past, the common method was to manually hammer the outer wall of the coal chute or install a vibratory hammer on the outer wall for cleaning. However, these methods have many drawbacks, such as the inability to clean the inner wall of the coal chute thoroughly, poor cleaning effect, and the potential for damage to the coal chute due to prolonged vibration and hammering, which reduces its working efficiency and increases maintenance costs and workload.

[0004] To address the problems of coal chute blockage and traditional cleaning methods, improve the stability and efficiency of coal conveying systems, and reduce manual labor intensity and equipment damage risks, the coal scraper for coal chutes was developed. Through its specific mechanical structure and working principle, it can more effectively scrape off coal dust adhering to the inner wall of the coal chute, achieving automatic and efficient cleaning and ensuring the normal operation of the coal conveying system.

[0005] The shortcomings of existing technologies and the technical problems to be solved by this proposal: 1. Knocking on the coal chute can easily damage it and pose a safety hazard to operators; 2. The existing coal chute is not a straight cylindrical structure, but generally has several curved nodes, and the existing hoisting equipment cannot carry operators to the relevant positions. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a coal scraper for a coal chutes.

[0007] To address the problems of existing technologies, this utility model discloses a coal scraper for a coal chutes, comprising a turntable, a rotating device, a cable-driven mechanism, a telescopic mechanism, and a cleaning brush assembly; the cable-driven mechanism is located on the turntable; one end of the telescopic mechanism is connected to the cleaning brush assembly, and the other end is connected to the turntable; the cable-driven mechanism is used to drive the telescopic mechanism to extend and retract; the cleaning brush assembly is used to extend into the coal chutes and contact the inner wall of the coal chutes; the turntable is connected to the rotating device, which drives the turntable to rotate, thereby causing the cleaning brush assembly to rotate.

[0008] The technical effect achieved by the above setup is that by using the rotation of the turntable and the cable-driven mechanism to push the telescopic mechanism, the inner wall of the coal chute with multiple bends can be cleaned quickly, with high adaptability.

[0009] Furthermore, the cable-driven mechanism includes a plurality of winding machines arranged in a circular array on the turntable; the winding machines have a driving cable wound on them.

[0010] The technical effects achieved by the above settings are as follows: the winding machine and the push cable are bendable steel cable type push mechanisms, which, together with the bendable telescopic mechanism, extend the cleaning mechanism into the coal drop pipe and adapt to the bending part of the coal drop pipe.

[0011] Furthermore, the outer side of the winding machine is provided with a wire cover, which includes a cylindrical wire cavity and a guide sleeve that is disposed on the side wall of the wire cavity and extends upward toward the hanging plate.

[0012] The technical effect achieved by the above settings is that the conductor cover can ensure that the push cable can be tightly wound on the reel, and ensure the uniqueness of the push direction of the push cable when the reel is pushed.

[0013] Furthermore, each push cable is slidably connected to a swing ball.

[0014] The technical effects achieved by the above settings are as follows: the oscillating ball block can provide a certain amount of oscillation for the push cable to compensate for the oscillation, reduce the bending moment at the sliding connection between the push cable and the hanging plate, improve the life of the push cable, and reduce the wear of the turntable and related components.

[0015] Furthermore, a connecting ring is provided in the middle of the turntable, and a swing disk is connected to the middle of the connecting ring via a swing motor. Several swing arms are arranged in a circular array on the swing disk, and a push block is provided at the end of the swing arm. The push cable is slidably connected to the push block.

[0016] The technical effect achieved by the above settings is that, driven by the swing motor, the swing disc can achieve high-speed micro-oscillation of the swing ring by pushing each push cable. While the turntable is rotating, the cleaning efficiency can be improved by the rapid oscillation of the swing disc.

[0017] Furthermore, the telescopic assembly includes: a telescopic tube, a top adapter ring, and a bottom adapter ring. One end of the telescopic tube is connected to the cleaning brush assembly via the top adapter ring, and the other end is connected to the turntable via the bottom adapter ring. The push cable is connected to the top adapter ring.

[0018] The technical effects achieved by the above settings are as follows: the telescopic pipe can adapt to the bends in the coal chute, and the top and bottom transition rings can increase the connection area of ​​the telescopic pipe and improve the torque transmission efficiency.

[0019] Furthermore, the inner wall of the telescopic tube is arrayed with several connecting ears, and each connecting ear has a sliding hole, allowing the cable to be slidably connected to the connecting ear through the sliding hole.

[0020] The technical effect achieved by the above settings is that the connecting ear can further ensure the transmission efficiency of the torque of the swing plate during the process of pushing the cable and twisting the hanging plate.

[0021] Furthermore, an anti-torsion spring is embedded in the inner wall of the telescopic tube, with one end of the anti-torsion spring connected to the top adapter ring and the other end connected to the bottom adapter ring.

[0022] The technical effect achieved by the above settings is that the anti-torsion spring is fixed at both ends simultaneously, further improving the anti-torsion effect. Furthermore, the cleaning component includes a connecting seat, and a swing ring is provided on the outer side of the connecting seat. The swing ring is connected to a cleaning brush via a support block.

[0023] The technical effect achieved by the above settings is that the collar structure facilitates disassembly and installation.

[0024] Furthermore, a raised ring is integrally provided above the swing ring, and the cleaning brush is arranged in a ring array on the outer wall of the raised ring. The cleaning brush is provided with a number of stainless steel cleaning blades.

[0025] The technical effects achieved by the above settings are as follows: the raised ring structure facilitates the disassembly and fixing of the cleaning brush, the stainless steel cleaning blade can scrape the inner wall of the coal chute, and the cleaning efficiency is higher than that of the nylon cleaning brush.

[0026] The beneficial effects of this utility model are: This invention utilizes a bendable steel cable-type pushing mechanism in conjunction with a bendable telescopic tube structure, and leverages the rotation of a turntable to achieve rapid cleaning of the inner wall of a coal chute with multiple bends, exhibiting high adaptability. Attached Figure Description

[0027] Figure 1 A schematic diagram of the structure of this utility model.

[0028] Figure label: 1. Coal chute; 2. Turntable; 3. Lifting lug; 4. Winding machine; 5. Wire sheath; 6. Swinging ball; 7. Push cable; 8. Connecting ring; 9. Swinging motor; 10. Swinging arm; 11. Pushing block; 12. Bottom adapter ring; 13. Telescopic tube; 14. Anti-torsion spring; 15. Swinging ring; 16. Top adapter ring; 17. Connecting seat; 18. Raised ring; 19. Cleaning brush; 20. Cleaning disc. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0030] like Figure 1 As shown, this utility model provides a coal scraper for a coal chute, including: a turntable 2, a telescopic mechanism, and a cleaning mechanism. The turntable 2 is connected to a rotating mechanism, which drives the turntable 2 to rotate. Several winding machines 4 are arranged in a circular array on the turntable 2, and push cables 7 are wound on the winding machines 4. The telescopic mechanism is connected above the turntable 2 and includes a telescopic tube 13. The telescopic tube 13 is configured to extend and retract along the axis of the telescopic mechanism. A swing ring 15 for connecting the cleaning mechanism is provided at the top of the telescopic tube 13. The end of the push cable 7 is connected to the swing ring 15. Several cleaning brushes 19 are arranged in a circular array on the outer ring of the swing ring 15. By using a bendable steel cable-type pushing mechanism in conjunction with a bendable telescopic tube 13 structure, and utilizing the rotation of the turntable 2, rapid cleaning of the inner wall of the coal chute 1 with multiple bends can be achieved, exhibiting high adaptability. A wire cover 5 is provided on the outside of the winding reel of the winding machine 4. The wire cover 5 includes a cylindrical wire cavity and a guide sleeve extending upwards from the side wall axis of the wire cavity towards the turntable 2. The wire cover 5 ensures that the pushing cable 7 can be tightly wound on the winding reel, guaranteeing the uniqueness of the pushing direction of the pushing cable 7 when the winding reel is pushed. Several oscillating ball blocks 6 are arranged in a circular array on the turntable 2, with a sliding sleeve coaxially fixed in the center of each oscillating ball block 6. The oscillating ball blocks 6 provide a certain amount of slight oscillation for the pushing cable 7, compensating for this and reducing the bending moment at the sliding connection between the pushing cable 7 and the turntable 2, thus extending the lifespan of the pushing cable 7 and reducing wear on the turntable 2 and related components.

[0031] A connecting ring 8 is located in the middle of the turntable 2. A swinging disk is connected to the middle of the connecting ring 8 via a swinging motor 9. Several swinging arms 10 are arranged in a circular array on the swinging disk. Pushing blocks 11 are provided at the ends of the swinging arms 10. Pushing cables 7 are slidably connected to the pushing blocks 11. The swinging disk can achieve high-speed micro-oscillation of the swinging ring 15 by pushing each pushing cable 7. While the turntable 2 rotates, the rapid oscillation of the swinging disk can improve cleaning efficiency. An anti-torsion spring 14 is embedded in the telescopic tube 13. The anti-torsion spring 14 can further reduce the possibility of circumferential torsion of the telescopic tube 13 and improve the transmission efficiency of the rotational torque of the turntable 2 to the swinging ring 15. A bottom adapter ring 12 is coaxially arranged at the top of the turntable 2, and a top adapter ring 16 is coaxially fixed below the swinging ring 15. The two ends of the telescopic tube 13 are coaxially fixed to the outer ring of the bottom adapter ring 12. The top adapter ring 16 is attached to the outer ring of the top adapter ring 16; the two ends of the anti-torsion spring 14 are fixed to the bottom adapter ring 12 and the top adapter ring 16 respectively; the top adapter ring 16 and the bottom adapter ring 12 can increase the connection area of ​​the telescopic tube 13 and improve the torque transmission efficiency. At the same time, the two ends of the anti-torsion spring 14 are fixed simultaneously to further improve the anti-torsion effect; a number of connecting ears 21 are arranged in an array on the inner wall of the spring tube. The connecting ears 21 are provided with sliding holes, and the push cable 7 is slidably connected to the connecting ears 21 through the sliding holes; the connecting ears 21 can further ensure the transmission efficiency of the torque of the swing disk during the twisting process of the push cable 7 and the turntable 2.

[0032] The cleaning mechanism includes a support block fixed to the swing ring 15. Several stainless steel cleaning plates 20 are arranged in an array on the support block, parallel to the axis of the swing ring 15. The cleaning plates 20 can scrape the inner wall of the coal chute 1, and have a higher cleaning efficiency than the nylon cleaning brushes 19. A raised ring 18 is integrally provided above the swing ring 15, and the cleaning brushes 19 are arranged in a ring array on the wall of the raised ring 18. The structure of the raised ring 18 can facilitate the disassembly and fixing of the cleaning brushes 19 and increase the size of the cleaning plates 20.

[0033] A number of lugs 3 for fixing the turntable 2 are arranged in a ring array on the outer wall of the turntable 2. The lugs 3 can improve the compatibility between the turntable 2 and the lifting mechanism. When there is no dedicated interface, it can be fixed to the lifting mechanism by a chain or other structure. Example 1

[0034] This embodiment provides the installation process of the coal scraper in the coal chute; Bottom support mechanism installation: First, determine the installation location of the lifting mechanism, ensuring it is stable and its height can be precisely controlled. Connect the turntable 2 to the lifting mechanism via the lifting lugs 3. If the lifting mechanism does not have a dedicated interface, a chain can be used to secure it by passing through the lifting lugs 3, ensuring the stability of the turntable 2 during operation. The winding machines 4 are installed in a circular array on the turntable 2, ensuring that the positions of each winding machine 4 are evenly distributed. After installation, the push cables 7 are sequentially installed onto the winding reels of each winding machine 4, and the wire housing 5 is installed on the outside of the winding reel. The cylindrical wire cavity of the wire housing 5 should tightly surround the winding reel, and the guide sleeve should extend accurately along the axis of the wire cavity sidewall towards the top of the turntable 2 to ensure the uniqueness of the direction of the push cables 7 during winding and unwinding. A circular array of oscillating ball blocks 6 is installed at the corresponding position on the turntable 2. A sliding sleeve is coaxially fixed in the middle of each oscillating ball block 6, providing a structural basis for the subsequent connection of the drive cable 7 and the micro-oscillation. Install a connecting ring 8 in the middle of the turntable 2, install the swing motor 9 in the middle of the connecting ring 8, and then connect the swing disk to the swing motor 9. Arrange swing arms 10 in a circular array on the swing disk, and install push blocks 11 at the ends of the swing arms 10 to ensure that the push cable 7 can slide with the push block 11. Telescopic mechanism installation: Install the telescopic tube 13 above the turntable 2, aligning it with the axis of the turntable 2. Coaxially install the bottom adapter ring 12 at the top of the turntable 2, and coaxially fix the top adapter ring 16 below the swing ring 15. Then, coaxially fix both ends of the telescopic tube 13 to the outer rings of the bottom adapter ring 12 and the top adapter ring 16, respectively. Install an anti-torsion spring 14 inside the telescopic tube 13, fixing both ends to the bottom adapter ring 12 and the top adapter ring 16, respectively, to enhance the anti-torsion performance of the telescopic tube 13 and improve torque transmission efficiency. Cleaning mechanism installation: The swing ring 15 is installed on the outside of the connecting seat 17, the support block is fixed on the swing ring 15, and several stainless steel cleaning plates 20 arranged in an array parallel to the axis of the swing ring 15 are installed on the support block to form a cleaning brush 19. The sweeping brushes 19 are installed in a circular array on the wall of the integrally formed protruding ring 18 above the swing ring 15 to ensure that the sweeping brushes 19 are firmly installed and easy to disassemble and replace. Example 2

[0035] This embodiment provides a method for debugging a coal scraper in a coal chutes; Winding machine 4 debugging: Start the winding machine 4 and observe whether the push cable 7 can be tightly and neatly wound onto the reel under the guidance of the wire housing 5. Check whether there are any abnormalities such as jamming or tangling during the winding and unwinding process of the push cable 7. If there are any problems, adjust the position of the wire housing 5 or the parameters of the winding machine 4 in time. Telescopic mechanism adjustment: Start the telescopic mechanism to control the telescopic tube 13 to extend and retract along the axial direction, and check whether the extension and retraction process is smooth and stable. Observe whether the telescopic tube 13 is twisted or deformed during the extension and retraction process, and at the same time check the working status of the anti-torsion spring 14 to ensure that it can effectively reduce the possibility of circumferential torsion of the telescopic tube 13. Swing mechanism adjustment: Start the swing motor 9 to drive the swing disk to swing at high speed with slight amplitude. Observe whether the sliding connection between the push block 11 at the end of the swing arm 10 and the push cable 7 is normal, and whether the push cable 7 can swing flexibly under the action of the push block 11. At the same time, in conjunction with the rotation of the turntable 2, check whether the swing ring 15 can achieve the expected movement trajectory and cleaning effect under the combined action of the rotation of the turntable 2 and the swing of the swing disk. Cleaning mechanism debugging: During the overall operation of the equipment, observe the cleaning effect of the cleaning brush 19 on the inner wall of the simulated coal drop pipe 1. Check whether the stainless steel cleaning plate 20 can effectively scrape off the attached coal dust or impurities. If the cleaning is not thorough, the installation angle of the cleaning brush 19 or the material, size and other parameters of the cleaning plate 20 can be adjusted appropriately. Example 3

[0036] This embodiment provides a method for operating a coal scraper in a coal chutes, including: Preparation: Move the installed and debugged coal scraper to the coal chute 1 to be cleaned, and adjust the height of the turntable 2 through the lifting mechanism to place it in a suitable working position. Check that all connections are secure and that all mechanisms are functioning properly to ensure the equipment is in good working order before operation. Operation process: Start the winding machine 4, and adjust the extension length of the push cable 7 according to the length and structure of the coal drop pipe 1 to send the swing ring 15 and the cleaning mechanism into the coal drop pipe 1. Activate the telescopic mechanism to extend or shorten the telescopic pipe 13, accurately delivering the cleaning mechanism to the part of the coal drop pipe 1 that needs cleaning, especially the part with bends. The rotating mechanism of turntable 2 is activated, and turntable 2 begins to rotate, driving the entire bottom support mechanism and cleaning mechanism to move inside the coal drop pipe 1. At the same time, the swing disk, driven by the swing motor 9, performs high-speed micro-oscillation, which pushes the swing ring 15 to swing rapidly inside the coal drop pipe 1 through the push cable 7, enabling the cleaning brush 19 to perform all-round and efficient cleaning of the inner wall of the coal drop pipe 1. During the cleaning process, the winding machine 4 adjusts the length and tension of the push cable 7 in real time according to the position of the cleaning mechanism and the cleaning requirements, ensuring that the cleaning mechanism can move and work smoothly inside the coal drop pipe 1. The telescopic mechanism also adjusts the length of the telescopic tube 13 in a timely manner according to the structural changes of the coal drop pipe 1, ensuring that the cleaning mechanism can always maintain good contact with the inner wall of the coal drop pipe 1 and achieve a good cleaning effect. Cleaning complete: After the cleaning of the coal drop pipe 1 is completed, the rotation of the turntable 2 and the swing of the swing plate are stopped first. Then, the push cable 7 is retracted by the winding machine 4, and the telescopic mechanism is controlled to move the cleaning mechanism out of the coal drop pipe 1. Finally, the entire coal scraper of the coal chute 1 is raised to its initial position using the lifting mechanism, completing one cleaning operation. The equipment is then inspected and maintained to prepare for the next cleaning operation.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the description of this utility model, 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," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the accompanying drawings of this utility model, the filling pattern is only used to distinguish the layers and is not used for any other limitation.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coal scraper for a coal chute, characterized in that, It includes a turntable (2), a rotating device, a cable-driven mechanism, a telescopic mechanism, and a cleaning brush assembly; the cable-driven mechanism is located on the turntable (2); one end of the telescopic mechanism is connected to the cleaning brush assembly, and the other end is connected to the turntable (2); the cable-driven mechanism is used to drive the telescopic mechanism to extend and retract; the cleaning brush assembly is used to extend into the coal chute (1) and contact the inner wall of the coal chute (1); the turntable (2) is connected to the rotating device, and the rotating device is used to drive the turntable (2) to rotate, thereby driving the cleaning brush assembly to rotate.

2. The coal scraper in the chutes according to claim 1, characterized in that, The cable-driven mechanism includes several winding machines (4) arranged in a ring array on the turntable (2); the winding machines (4) have a driving cable (7) wound on them.

3. The coal scraper in the chutes according to claim 2, characterized in that, The winding machine is provided with a wire cover (5) on the outside. The wire cover (5) includes a cylindrical wire cavity and a guide sleeve that is provided on the side wall of the wire cavity and extends upward toward the hanging plate.

4. The coal scraper in the chutes according to claim 2, characterized in that, Each push cable (7) is slidably connected to a swing ball (6).

5. The coal scraper in the chutes according to claim 2, characterized in that, A connecting ring (8) is provided in the middle of the turntable (2). A swing disk is connected to the middle of the connecting ring (8) via a swing motor (9). Several swing arms (10) are arranged in a circular array on the swing disk. A push block (11) is provided at the end of the swing arm (10). The push cable (7) is slidably connected to the push block (11).

6. The coal scraper in the chutes according to claim 2, characterized in that, The telescopic assembly includes: a telescopic tube (13), a top adapter ring (16) and a bottom adapter ring (12). One end of the telescopic tube (13) is connected to the cleaning brush assembly through the top adapter ring (16), and the other end is connected to the turntable (2) through the bottom adapter ring (12). The push cable (7) is connected to the top adapter ring (16).

7. The coal scraper in the chutes according to claim 6, characterized in that, The inner wall of the telescopic tube (13) is provided with a plurality of connecting ears (21), and the connecting ears (21) are provided with sliding holes, so that the cable (7) can be slidably connected to the connecting ears through the sliding holes.

8. The coal scraper in the chutes according to claim 6, characterized in that, The inner wall of the telescopic tube (13) is inlaid with an anti-torsion spring (14), one end of which is connected to the top adapter ring (16) and the other end is connected to the bottom adapter ring (12).

9. The coal scraper in the chutes according to claim 1, characterized in that, The cleaning brush assembly includes a connecting seat (17), and a swing ring (15) is provided on the outside of the connecting seat (17). The swing ring (15) is connected to a cleaning brush (19) through a support block.

10. The coal scraper in the chutes according to claim 9, characterized in that, A raised ring (18) is integrally provided above the swing ring (15), and the cleaning brush (19) is arranged in a ring array on the outer wall of the raised ring (18). The cleaning brush (19) is provided with a number of stainless steel cleaning plates (20).

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