A device for removing deposits from the outer wall of a crucible in a graphitization furnace

Abstract

A kind of graphite furnace crucible outer wall attachment removal device is provided.The present application relates to the field of graphite furnace crucible.After existing resistance material is bonded on the outer wall of the crucible, a relatively hard lump is formed, and manual cleaning requires repeated scraping, knocking and other operations to eliminate the lump with low efficiency.The present application comprises a directional platform, an outer wall scraper, a scraper mounting bracket, a support bracket, a threaded rod, a compression spring and a spherical nut;the support bracket is connected to the directional platform;the threaded rod is connected to the scraper mounting bracket;the tail of the threaded rod is screwed into the spherical nut through a threaded structure;a scraper insert plate is mounted on the scraper mounting bracket;the outer wall scraper is inserted between the scraper insert plates;a compression spring is sleeved on the threaded rod;the compression spring is arranged between the scraper mounting bracket and the support bracket;when the outer wall scraper contacts the outer wall of the crucible, the scraper mounting bracket compresses the compression spring;the elastic force of the compression spring makes the outer wall scraper abut against the outer wall of the crucible.The present application is applied to the field of lump cleaning on the outer wall of the crucible.

Description

Technical Field

[0001] This utility model relates to the field of crucibles in graphitization furnaces, and specifically to a device for removing deposits from the outer wall of a crucible in a graphitization furnace. Background Technology

[0002] Currently, under high-temperature conditions, some components of resistance materials reach their melting point and melt. Molten resistance materials are fluid and can wet the outer wall of the crucible. For example, in graphitization furnaces, resistance materials exist to improve the furnace core resistance and ensure uniform heating. At high temperatures, some of their low-melting-point substances melt and adhere to the outer wall of the crucible, much like a liquid adhering to a solid surface.

[0003] When resistive material adheres to the outer wall of the crucible, it forms a relatively solid clump. Due to this strong adhesion, manual cleaning relies mainly on simple tools like shovels and hammers, requiring repeated scraping and tapping. Workers must hold heavy cleaning tools and continuously apply force to the crucible's outer wall. Maintaining a bent-over, raised-arm posture for extended periods easily leads to muscle fatigue and strain; prolonged exposure to such conditions in areas like the arms and lower back can potentially cause chronic diseases, increasing the physical burden on workers. Furthermore, the high temperature of the crucible and the potential for falling clumps of resistive material during cleaning pose a risk of burns. Therefore, manual methods for removing clumps are inefficient and fail to quickly and effectively remove the resistive material clumps from the crucible's outer wall. Utility Model Content

[0004] In order to solve the problem that existing resistive materials adhere to the outer wall of the crucible and form relatively solid clumps, which require repeated scraping and tapping for manual cleaning and have low efficiency in removing the clumps, this utility model provides a device for removing the adhering substances on the outer wall of the crucible in a graphitization furnace.

[0005] The technical solution of this utility model is:

[0006] A device for removing adhering substances from the outer wall of a crucible in a graphitization furnace, the device comprising a directional table, an outer wall scraper, a scraper mounting bracket, a support frame, a threaded rod, a compression spring, and a spherical nut;

[0007] A set of support frames is fixedly connected above the orientation stage. The support frames have a set of insertion holes for inserting threaded rods. Threaded rods are inserted into the insertion holes, and the head end of the threaded rod is fixedly connected to the plane of the scraper mounting frame. A ball nut is screwed into the tail end of the threaded rod through a threaded structure. A set of scraper insert plates are installed on the scraper mounting frame. The outer wall scraper is inserted between the set of scraper insert plates, and the scraper insert plates and the outer wall scraper are fixedly connected by a set of bolt assemblies. A compression spring is fitted onto the threaded rod. The compression spring is located between the scraper mounting frame and the support frame. When the outer wall scraper contacts the outer wall of the crucible, the scraper mounting frame compresses the compression spring, and the elastic force of the compression spring causes the outer wall scraper to press against the outer wall of the crucible.

[0008] Furthermore, a rolling bearing is installed at the center of the orientation stage, and a rotating shaft passes through the rolling bearing. The bottom of the rotating shaft is connected to the motor housing, the bottom of the motor housing is connected to the base, and the top of the rotating shaft is fixedly connected to the center of the crucible turntable.

[0009] Furthermore, the crucible turntable is provided with a positioning sleeve with an annular structure, and the positioning sleeve is fixed above the crucible turntable by a bolt assembly.

[0010] Furthermore, the outer diameter of the positioning sleeve is smaller than the inner diameter of the crucible, so that the crucible is inserted into the positioning sleeve to limit its position.

[0011] Furthermore, the positioning sleeve has protruding structures on both sides, which are integrally fixedly connected to the crucible turntable and inserted into the grooves on the end wall of the crucible.

[0012] Furthermore, the outer wall scraper and scraper mounting bracket are arranged circumferentially on the outer circumference of the crucible turntable, and the angle between two adjacent outer wall scrapers is 120 degrees.

[0013] Furthermore, the device for removing deposits from the outer wall of the crucible in the graphitization furnace also includes a dust cover.

[0014] Furthermore, the bottom of the dust cover is positioned above the orientation platform to support the dust cover.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This invention uses a motor to drive an outer wall scraper to rotate, which can scrape off the resistive material on the outer wall of the crucible. Driven by the motor, the outer wall scraper can act evenly and continuously on the outer wall of the crucible, which can more thoroughly remove the resistive material clumps, reduce residues, and ensure cleaning quality. Compared with manual cleaning, it greatly improves cleaning efficiency and saves time and labor costs.

[0017] This invention features a dust cover on the outside of the cleaning device. When cleaning the clumps of resistive material on the outer wall of the crucible, the protective cover can effectively block the dust and debris generated during the cleaning process, and also prevent the scraped debris from splashing.

[0018] This utility model's scraper mounting bracket uses a compression spring to generate elasticity. The rear of the scraper mounting bracket is connected to a threaded rod, and a ball nut is screwed into the threaded rod. Adjusting the distance between the nut and the threaded rod adjusts the force of the outer wall scraper. Simultaneously using the outer wall scraper for cleaning can avoid accidental injuries caused by improper use of tools or excessive force during manual cleaning, thus improving operational safety. Attached Figure Description

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

[0020] Figure 2 yes Figure 1 Top view;

[0021] Figure 3 This is a schematic diagram of the structure of this utility model in use;

[0022] Figure 4 yes Figure 3 A magnified view of part A in the image;

[0023] Figure 5 This is a schematic diagram showing the connection between the scraper mounting bracket and the outer wall scraper;

[0024] Figure 6 This is a structural diagram of the dust cover;

[0025] Figure 7 This is a schematic diagram showing the connection between multiple scraper mounting brackets and the outer wall scraper;

[0026] In the diagram: 1. Orientation stage, 2. Outer wall scraper, 3. Scraper mounting bracket, 4. Support frame, 5. Threaded rod, 6. Compression spring, 7. Ball nut, 8. Insertion hole, 9. Scraper insert plate, 10. Crucible, 11. Rolling bearing, 12. Rotating shaft, 13. Motor box, 14. Base, 15. Crucible turntable, 16. Positioning sleeve, 17. Protruding structure, 18. Groove, 19. Dust cover. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0028] Specific implementation method one: Combining Figure 1 — Figure 3 This embodiment describes a device for removing adhering substances from the outer wall of a crucible in a graphitization furnace. The device includes a directional table 1, an outer wall scraper 2, a scraper mounting bracket 3, a support bracket 4, a threaded rod 5, a compression spring 6, and a spherical nut 7.

[0029] A set of support frames 4 are fixedly connected above the orientation stage 1. A set of insertion holes 8 for inserting threaded rods 5 are longitudinally opened on the support frame 4. Threaded rods 5 are inserted into the insertion holes 8 respectively. The head end of the threaded rod 5 is fixedly connected to the plane of the scraper mounting frame 3. The tail end of the threaded rod 5 is screwed into a ball nut 7 through a threaded structure. A set of scraper insert plates 9 are installed on the scraper mounting frame 3. The outer wall scraper 2 is inserted between the set of scraper insert plates 9, and the scraper insert plates 9 and the outer wall scraper 2 are fixedly connected by a set of bolt assemblies. A compression spring 6 is sleeved on the threaded rod 5. The compression spring 6 is set between the scraper mounting frame 3 and the support frame 4. When the outer wall scraper 2 contacts the outer wall of the crucible 10, the scraper mounting frame 3 compresses the compression spring 6. The elastic force of the compression spring 6 makes the outer wall scraper 2 press against the outer wall of the crucible 10.

[0030] Specific Implementation Method Two: Combining Figure 1 — Figure 3 This embodiment describes a device for removing deposits from the outer wall of a crucible in a graphitization furnace. A rolling bearing 11 is installed at the center of the directional stage 1, and a rotating shaft 12 passes through the rolling bearing 11. The bottom of the rotating shaft 12 is connected to a motor housing 13, the bottom of the motor housing 13 is connected to a base 14, and the top of the rotating shaft 12 is fixedly connected to the center of the crucible turntable 15.

[0031] The orientation stage 1 has an opening at its center, and is fixedly connected to the outer ring surface of the rolling bearing 11 by welding at the opening. The inner ring surface of the rolling bearing 11 is fixedly connected to the axial surface of the rotating shaft 12 by welding. The top end of the rotating shaft 12 is fixedly connected to the center of the crucible turntable 15 by welding. When the motor in the motor housing 13 drives the rotating shaft 12 to rotate, the rotating shaft 12 drives the crucible turntable 15 to rotate.

[0032] Specific implementation method three: Combining Figure 1 — Figure 3 This embodiment describes a device for removing deposits from the outer wall of a crucible in a graphitization furnace. The crucible turntable 15 is provided with a positioning sleeve 16 of an annular structure, and the positioning sleeve 16 is fixed above the crucible turntable 15 by a bolt assembly.

[0033] The crucible turntable 15 has a disc structure, and the crucible turntable 15 and the positioning sleeve 16 are concentric. A support plate is connected to the horizontal part of the positioning sleeve 16, and bolts are screwed into the holes on the support plate to fix the positioning sleeve 16 above the crucible turntable 15. The positioning sleeve 16 adopts a ring-shaped structure made of rubber. When the crucible 10 is inserted into the positioning sleeve 16, the crucible 10 plays a positioning role when it rotates.

[0034] Specific implementation method four: Combination Figure 1 — Figure 3 This embodiment describes a device for removing adhering substances from the outer wall of a crucible in a graphitization furnace. The outer diameter of the positioning sleeve 16 is smaller than the inner diameter of the crucible 10, allowing the crucible 10 to be inserted into the positioning sleeve 13 for positioning.

[0035] The positioning sleeve 16 is made of rubber. The outer annular surface of the positioning sleeve 16 increases the friction between the inside of the crucible 10. When the crucible turntable 15 rotates, the crucible turntable 15 drives the crucible 10 to rotate synchronously.

[0036] Specific Implementation Method Five: Combining Figure 4 This embodiment describes a device for removing deposits from the outer wall of a crucible in a graphitization furnace. The positioning sleeve 16 has protruding structures 17 connected to both sides. The protruding structures 17 are integrally fixedly connected to the crucible turntable 15 and are inserted into the grooves on the end wall of the crucible 10.

[0037] The protruding structure 17 has a rectangular cross-section and is inserted into the groove 19 on the end wall of the crucible 10. The crucible 10 is positioned by the protruding structure 17 and the groove 19 on the end wall of the crucible 10, so that when the crucible 10 rotates on the crucible turntable 15, the crucible turntable 15 and the crucible 10 rotate simultaneously.

[0038] Specific Implementation Method Six: This implementation method is described in conjunction with 5. In this implementation method, there is a device for removing adhering substances from the outer wall of a crucible in a graphitization furnace. The outer wall scraper 2 and the scraper mounting bracket 3 are arranged circumferentially on the outer circumference of the crucible turntable 15, and the angle between two adjacent outer wall scrapers 2 is 120 degrees.

[0039] The outer wall scraper 2 is made of steel plate, and the end of the outer wall scraper 2 is a beveled structure, so that the beveled surface of the outer wall scraper 2 contacts the outer wall of the crucible 10. By forming a tangential surface between the beveled surface of the outer wall scraper 2 and the crucible 10, the outer wall of the crucible 10 can be cleaned better.

[0040] Specific implementation method seven: Combining Figure 6This embodiment describes a device for removing adhering substances from the outer wall of a crucible in a graphitization furnace. The device further includes a dust cover 19.

[0041] The outer diameter of the dust cover 19 is smaller than the diameter of the orientation stage 1, so that the dust cover 19 can be fastened to the top of the orientation stage 1.

[0042] During operation, the dust cover 19 completely encloses the outer wall scraper 2, scraper mounting bracket 3, support frame 4, crucible turntable 15, and crucible 10 within the dust cover 19. When cleaning the resistive material on the outer wall of the crucible 10, the dust cover 19 prevents the resistive material from splashing and facilitates its collection.

[0043] Specific implementation method eight: Combination Figure 1 — Figure 7 This embodiment describes a device for removing adhering substances from the outer wall of a crucible in a graphitization furnace. The device includes a directional table 1, an outer wall scraper 2, a scraper mounting bracket 3, a support bracket 4, a threaded rod 5, a compression spring 6, and a spherical nut 7.

[0044] like Figure 7 As shown, each support frame 4 is equipped with a set of scraper mounting frames 3, and the set of scraper mounting frames 3 are arranged longitudinally on the support frame 4. Each scraper mounting frame 3 is equipped with an outer wall scraper 2, so that each outer wall scraper 2 is an independent structure. When the thickness of the outer wall resistive material of the crucible 10 is uneven, the above structure allows the outer wall scrapers 2 to clean the clumps of the outer wall resistive material of different thicknesses. When cleaning clumps in different parts, multiple sets of scrapers work together to scrape multiple areas of the outer wall of the crucible at the same time, which greatly improves the cleaning efficiency compared with a single scraper. It can also cover a larger area of ​​the outer wall of the crucible, reduce blind spots, and clean more thoroughly.

[0045] When scraping the resistive material off the outer wall of crucible 10, the inner wall of crucible 10 is inserted into positioning sleeve 16. Positioning sleeve 16 positions crucible 10 between a set of outer wall scrapers 2. A compression spring 6 is fitted onto the threaded rod 5 of the scraper mounting bracket 3. The spring 6's own elasticity presses against the scraper mounting bracket 3, causing the inclined surface of the outer wall scraper 2 on the scraper mounting bracket 3 to press against the resistive material on the outer wall of crucible 10. The dust cover 19 holds the outer wall scraper 2, scraper mounting bracket 3, positioning sleeve 16, etc. into the dust cover 19. When the motor in the motor box 13 drives the rotating shaft 12 to rotate, the rotating shaft 12 drives the crucible turntable 15 to rotate, thereby driving the crucible 10 to rotate through the crucible turntable 15. When the crucible 10 rotates, a set of outer wall scrapers 2 scrapes off the resistive material on the outer wall of the crucible 10. After the resistive material is scraped off, it falls onto the orientation table 1 for cleaning.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present utility model's technical solution, based on the technical essence of the present utility model and within the spirit and principles of the present utility model, shall still fall within the protection scope of the present utility model's technical solution.

Claims

1. A device for removing deposits from the outer wall of a crucible in a graphitization furnace, characterized in that, The device for removing adhering substances from the outer wall of the crucible in the graphitization furnace includes an orientation table (1), an outer wall scraper (2), a scraper mounting bracket (3), a support frame (4), a threaded rod (5), a compression spring (6), and a spherical nut (7). A set of support frames (4) is fixedly connected above the orientation platform (1). A set of insertion holes (8) for inserting threaded rods (5) are longitudinally opened on the support frame (4). Threaded rods (5) are inserted into the insertion holes (8). The head end of the threaded rod (5) is fixedly connected to the plane of the scraper mounting frame (3). A ball nut (7) is screwed into the tail end of the threaded rod (5) through a threaded structure. A set of scraper insert plates (9) are installed on the scraper mounting frame (3). The outer wall scraper (2) Inserted between a set of scraper inserts (9), and the scraper inserts (9) and the outer wall scraper (2) are fixedly connected by a set of bolt assemblies. A compression spring (6) is fitted on the threaded rod (5). The compression spring (6) is set between the scraper mounting bracket (3) and the support bracket (4). When the outer wall scraper (2) contacts the outer wall of the crucible (10), the scraper mounting bracket (3) compresses the compression spring (6). The elastic force of the compression spring (6) makes the outer wall scraper (2) press against the outer wall of the crucible (10).

2. The device for removing deposits from the outer wall of a crucible in a graphitizing furnace according to claim 1, characterized in that, A rolling bearing (11) is installed at the center of the orientation stage (1), and a rotating shaft (12) passes through the rolling bearing (11). The bottom of the rotating shaft (12) is connected to the motor housing (13), the bottom of the motor housing (13) is connected to the base (14), and the top of the rotating shaft (12) is fixedly connected to the center of the crucible turntable (15).

3. The device for removing deposits from the outer wall of the crucible in a graphitizing furnace according to claim 2, characterized in that, The crucible turntable (15) is provided with a positioning sleeve (16) with an annular structure, and the positioning sleeve (16) is fixed above the crucible turntable (15) by a bolt assembly.

4. The device for removing deposits from the outer wall of the crucible in a graphitizing furnace according to claim 3, characterized in that, The outer diameter of the positioning sleeve (16) is smaller than the inner diameter of the crucible (10), so that the crucible (10) is inserted into the positioning sleeve (13) to limit the position of the crucible (10).

5. The device for removing deposits from the outer wall of the crucible in a graphitization furnace according to claim 3 or 4, characterized in that, The positioning sleeve (16) has protruding structures (17) on both sides. The protruding structures (17) are integrally fixedly connected to the crucible turntable (15). The protruding structures (17) are inserted into the groove (18) on the end wall of the crucible (10).

6. The device for removing deposits from the outer wall of the crucible in a graphitizing furnace according to claim 2, characterized in that, The outer wall scraper (2) and scraper mounting bracket (3) are arranged circumferentially on the outer circumference of the crucible turntable (15), and the angle between two adjacent outer wall scrapers (2) is 120 degrees.

7. The device for removing deposits from the outer wall of the crucible in a graphitization furnace according to claim 1, characterized in that, The device for removing adhering substances from the outer wall of the crucible in the graphitization furnace also includes a dust cover (19) disposed outside the crucible (10).

8. The device for removing deposits from the outer wall of the crucible in a graphitizing furnace according to claim 7, characterized in that, The bottom of the dust cover (19) is positioned above the orientation platform (1) to support the dust cover (19).

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