High-strength mullite castable production screening device

Abstract

The utility model relates to the production technology field of mullite castable, specifically relates to a high -strength mullite castable production screening plant, including screening box, the top end of screening box is embedded and is installed with feed hopper, the inside rotation of feed hopper is connected with two groups of crushing roller, the both ends of feed hopper outer wall one side all are installed with first motor, and the drive end of first motor extends to the inside of feed hopper and is fixedly connected with the one end of crushing roller, the inside installation of screening box has movable screening mechanism, and movable screening mechanism includes screening subassembly and linkage material cleaning subassembly, the utility model discloses simple structure, convenient operation, and the staff can effectively eject and clean the material that is stuck in the inside of screen hole, and centralized recovery is carried out, reduces the waste of raw material, and after taking out the screen plate, manual cleaning is carried out again without the staff to split the screening box, further increases work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mullite castable production technology, specifically to a screening device for high-strength mullite castable production. Background Technology

[0002] With the rapid development of society and economy, the binder used in mullite-bonded refractory castables is a composite binder, mainly consisting of α-Al₂O₃ and SiO₂ ultrafine powders, soft clay, and hydrated alumina. At low temperatures, the ultrafine powders and hydrated alumina play a binding role, while at medium and high temperatures, α-Al₂O₃ reacts with SiO₂ to form mullite, thus providing the binding effect. Therefore, it is called mullite-bonded refractory castable. In monolithic refractories, secondary mullification is used to improve and enhance their properties, which is the most common technical method. Refractory plastics, clay-bonded, and micro-expansion refractory castables are all manufactured using the concept of self-reaction, self-sintering, and self-expansion of α-Al₂O₃ and SiO₂. Therefore, in industrial applications below 1400℃... In use in the furnace, this method has yielded good results. Existing screening devices utilize gears and racks to move the screen up and down for screening, resulting in poor screening efficiency. Furthermore, the mullite castable is in direct contact with the screen, causing damage, and the small contact area further reduces screening efficiency. Additionally, when the mullite castable contains large particles, the screen cannot effectively filter them, and the impact force generated by these large particles during screening further damages the screen itself. Therefore, we propose a high-strength mullite castable production screening device.

[0003] To solve the above-mentioned technical problems, the prior art Chinese patent with publication number CN221245369U discloses a screening device for the production of high-strength mullite castable, which includes a box body. The inner cavity of the box body is provided with two meshing crushing and dispersing rollers and a screening screen plate from top to bottom. A support block is fixedly connected to the outer wall of the box body, and a motor is fixedly installed on the upper surface of the support block.

[0004] Although the existing technical solutions described above can break up the mullite castables piled up above the screening screen plate and avoid affecting the screening efficiency due to clumping, some materials are larger than the diameter of the screen holes and cannot be screened down. They will also get stuck inside the screen holes, causing screen blockage and greatly affecting the screening efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a screening device for the production of high-strength mullite castable, in order to solve the problem mentioned in the background art where some materials are larger than the diameter of the screen holes and cannot be screened out, and at the same time, they get stuck inside the screen holes, causing screen blockage, which greatly affects the screening efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A screening device for producing high-strength mullite castable includes a screening box. A feed hopper is embedded in the top of the screening box. Two sets of crushing rollers are rotatably connected to the inner side of the feed hopper. A first motor is installed at both ends on one side of the outer wall of the feed hopper. The drive end of the first motor extends into the feed hopper and is fixedly connected to one end of the crushing roller. A movable screening mechanism is installed inside the screening box. The movable screening mechanism includes a screening component and a linkage cleaning component. The screening component is used to screen the material, and the linkage cleaning component is used to clean and collect the material stuck on the screening component.

[0008] As a preferred embodiment of this utility model, the screening component includes guide plates installed on both sides of the inner wall of the screening box. A screening groove is provided on one side of the inner wall of the screening box below the guide plates. A first spring is installed at both ends of one side of the inner wall of the screening groove. A vibrating plate is installed at the other end of the first spring. The vibrating plate is slidably connected to the screening groove. A vibration motor is installed on one side of the vibrating plate.

[0009] As a preferred embodiment of this utility model, a cover plate is installed on the drive end of the vibration motor, a fixed cylinder is installed on one top end of the cover plate, a connecting plate is installed on one top end of the fixed cylinder, a screen frame is rotatably connected to one top end of the connecting plate, and a screen plate is installed on the inner wall of the screen frame.

[0010] As a preferred embodiment of this utility model, the linkage cleaning assembly includes a movable groove located inside the screening box on the other side of the screen frame. A transfer groove is provided inside the screening box on one side of the movable groove. A transfer plate is slidably connected to the inner side of the transfer groove. The transfer plate is slidably connected to the screening box. A connecting frame is installed at one end of the transfer plate extending to the outside of the screening box. A second spring is installed on one side of the connecting frame. A pull plate is installed at the other end of the second spring. A pull ring is rotatably connected to one end of the pull plate.

[0011] As a preferred embodiment of this utility model, a column is installed on the top of the screening box on one side of the feed hopper. Two sets of fixing frames are arranged on one side of the column. A third spring is installed at both ends of the inner wall of the fixing frame. A fixing seat is installed between the two sets of third springs. A positioning hole is opened on one side of the fixing seat. A positioning post is installed on the other side of the pull plate. The positioning post is slidably connected to the connecting frame and to the positioning hole.

[0012] As a preferred embodiment of this utility model, a second motor is installed at the bottom inner side of the fixed cylinder, a threaded rod is installed at the drive end of the second motor, a movable sleeve is threadedly connected to the outer side of the threaded rod, limit grooves are opened on both sides of the inner wall of the fixed cylinder, limit blocks are installed at both ends of the outer wall of the movable sleeve, the limit blocks and the limit grooves are slidably connected, a side plate is installed on one side of the outer wall of the movable sleeve, a plurality of extension plates are installed on one side of the side plate, and a plurality of top rods that are slidably connected to the screen holes in the screen plate are arranged on the top of the extension plates.

[0013] As a preferred embodiment of this utility model, a discharge trough is provided on one side of the outer wall of the screening box, and a closed groove is provided inside the screening box on one side of the discharge trough. A closing plate is slidably connected to the inner side of the closed groove, and the closing plate is slidably connected to the screening box. A handle is installed at one end of the closing plate extending to the top surface of the screening box. A magnetic block is embedded in one side of the outer wall of the closing plate, and an iron block that attracts the magnetic block is embedded in one side of the inner wall of the closed groove. A first linkage plate is installed on one side of the outer wall of the transfer plate, and a second linkage plate is rotatably connected to the other end of the first linkage plate. The second linkage plate is fixedly connected to one side of the screen frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, materials are screened by a screening component, and a linkage cleaning component is used to clean and collect materials stuck on the screening component. The structure is simple and easy to operate. Workers can effectively push out and clean the materials stuck inside the screen holes and collect them in a centralized manner, reducing the waste of raw materials. Furthermore, it eliminates the need for workers to disassemble the screening box, remove the screen plate, and then manually clean it, further increasing work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial three-dimensional structural diagram of the connecting frame of this utility model;

[0018] Figure 3 This is a partial cross-sectional view of the screening box of this utility model;

[0019] Figure 4 This is a partial cross-sectional view of the fixed cylinder structure of this utility model.

[0020] In the diagram: 1. Screening box; 2. Feed hopper; 3. First motor; 4. Crushing roller; 5. Guide plate; 6. First spring; 7. Vibrating motor; 8. Cover plate; 9. Fixed cylinder; 10. Connecting plate; 11. Screen frame; 12. Screen plate; 13. Transfer plate; 14. Connecting frame; 15. Second spring; 16. Pull plate; 17. Column; 18. Fixed frame; 19. Third spring; 20. Fixed seat; 21. Positioning column; 22. Second motor; 23. Threaded rod; 24. Movable sleeve; 25. Extension plate; 26. Top rod; 27. Closing plate; 28. Magnetic block; 29. ​​Second linkage plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example: Please refer to Figures 1-4 This utility model provides a technical solution:

[0023] A screening device for producing high-strength mullite castable includes a screening box 1. A feed hopper 2 is embedded in the top of the screening box 1. Two sets of crushing rollers 4 are rotatably connected to the inner side of the feed hopper 2. A first motor 3 is installed at both ends of one side of the outer wall of the feed hopper 2. The drive end of the first motor 3 extends into the inside of the feed hopper 2 and is fixedly connected to one end of the crushing roller 4. A movable screening mechanism is installed inside the screening box 1. The movable screening mechanism includes a screening component and a linkage cleaning component. The screening component is used to screen the material, and the linkage cleaning component is used to clean and collect the material stuck on the screening component. When in use, the device can screen the material through the screening component and clean and collect the material stuck on the screening component through the linkage cleaning component. The structure is simple and easy to operate. The operator can effectively push out and clean the material stuck inside the screen hole and collect it in a centralized manner, reducing the waste of raw materials. Moreover, it eliminates the need for the operator to disassemble the screening box 1 and remove the screen plate 12 for manual cleaning, further increasing work efficiency.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the screening assembly includes guide plates 5 installed on both sides of the inner wall of the screening box 1. A screening trough is opened on one side of the inner wall of the screening box 1 below the guide plate 5. A first spring 6 is installed at both ends of one side of the inner wall of the screening trough. A vibrating plate is installed at the other end of the first spring 6. The vibrating plate and the screening trough are slidably connected. A vibrating motor 7 is installed on one side of the vibrating plate. A cover plate 8 is installed on the drive end of the vibrating motor 7. A fixed cylinder 9 is installed at one end of the top of the cover plate 8. A connecting plate 10 is installed at one end of the top of the fixed cylinder 9. A screen frame 11 is rotatably connected to one end of the top of the connecting plate 10. A screen plate 12 is installed on the inner wall of the screen frame 11. First, the material is poured in through the feed hopper 2. At the same time, the first motor 3 is started to drive the crushing roller 4 to rotate and crush the agglomerated material. The material can fall down along the guide plate 5 and fall onto the surface of the screen plate 12. Then, the vibrating motor 7 can be started so that it works with the two sets of first springs 6 to drive the cover plate 8 and the screen frame 11 and screen plate 12 above it to vibrate and screen.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a column 17 is installed on the top of the screening box 1 on one side of the feed hopper 2. Two sets of fixed frames 18 are arranged on one side of the column 17. A third spring 19 is installed at both ends of the inner wall of the fixed frame 18. A fixed seat 20 is installed between the two sets of third springs 19. Then, when vibrating, the transfer plate 13 can move inside the transfer groove. The force is transmitted to the fixed seat 20, so that the two sets of third springs 19 extend and retract according to the vibration. This will not interfere with the screening of materials, allowing the materials to fall from the screen holes to achieve the screening effect.

[0026] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, a second motor 22 is installed at the bottom inner side of the fixed cylinder 9. A threaded rod 23 is installed at the drive end of the second motor 22. A movable sleeve 24 is threadedly connected to the outer side of the threaded rod 23. Limiting grooves are opened on both sides of the inner wall of the fixed cylinder 9. Limiting blocks are installed at both ends of the outer wall of the movable sleeve 24. The limiting blocks and the limiting grooves are slidably connected. A side plate is installed on one side of the outer wall of the movable sleeve 24. Multiple sets of extension plates 25 are installed on one side of the side plate. Multiple sets of top rods 26 that are slidably connected to the screen holes in the screen plate 12 are arranged at the top of the extension plates 25. Furthermore, when the material blocks the screen holes, the second motor 22 can be started to drive the threaded rod 23 to rotate, so that the movable sleeve 24 can be smoothly extended in conjunction with the limiting blocks and the limiting grooves, allowing the side plate to drive the top rods 26 on the extension plates 25 to push into the inner side of the screen holes and push out the stuck material. After being pushed out, the second motor 22 can be started again to drive the top rods 26 to reset.

[0027] In this embodiment, as Figure 2 , Figure 3 and Figure 4As shown, the linkage cleaning assembly includes a movable groove located inside the screening box 1 on the other side of the screen frame 11. A transfer groove is provided inside the screening box 1 on one side of the movable groove. A transfer plate 13 is slidably connected to the inner side of the transfer groove. The transfer plate 13 is slidably connected to the screening box 1. A connecting frame 14 is installed at one end of the transfer plate 13 extending to the outside of the screening box 1. A second spring 15 is installed on one side of the connecting frame 14. A pull plate 16 is installed at the other end of the second spring 15. A pull ring is rotatably connected to one end of the pull plate 16. A positioning hole is provided on one side of the seat 20, and a positioning post 21 is installed on the other side of the pull plate 16. The positioning post 21 is slidably connected to the connecting frame 14 and the positioning hole. A discharge trough is provided on one side of the outer wall of the screening box 1. A sealing groove is provided inside the screening box 1 on one side of the discharge trough. A sealing plate 27 is slidably connected to the inner side of the sealing groove. The sealing plate 27 is slidably connected to the screening box 1. A handle is installed at one end of the sealing plate 27 extending to the top surface of the screening box 1. A handle is installed on the outer wall of the sealing plate 27. A magnetic block 28 is embedded in the side of the screen 11. An iron block that attracts the magnetic block 28 is embedded in one side of the inner wall of the closed groove. A first linkage plate is installed on one side of the outer wall of the transfer plate 13. The other end of the first linkage plate is rotatably connected to a second linkage plate 29. The second linkage plate 29 is fixedly connected to one side of the screen frame 11. Furthermore, the handle can be held to move the closed plate 27 upward, allowing the magnetic block 28 and the iron block to attract and temporarily position the closed plate 27, exposing the port of the discharge chute. Then, the pull ring can be fastened to move the screen 27 upward. The pull plate 16 moves, stretching the second spring 15, causing the positioning pin 21 to be pulled out from the positioning hole of the lower fixed seat 20, and the pull plate 13 is pulled upward to reposition the positioning pin 21 in the upper positioning hole. When the pull plate 13 moves, it can drive the first linkage plate to move together, causing the second linkage plate 29 at its other end to deflect and drive the screen frame 11 and screen plate 12 to deflect and tilt around one end of the connecting plate 10, so that after it is raised, the ejected material slides down and can be discharged and collected along the discharge chute.

[0028] The implementation principle of a high-strength mullite castable production screening device according to an embodiment of this application is as follows: Material is fed into the feed hopper 2, and simultaneously, the first motor 3 is started to drive the crushing roller 4 to rotate, crushing any agglomerated material. The material falls along the guide plate 5 onto the surface of the screen plate 12. Then, the vibration motor 7 is started, cooperating with two sets of first springs 6 to drive the cover plate 8 and the screen frame 11 and screen plate 12 above it for vibration screening. During vibration, the transfer plate 13 moves along the inside of the transfer groove, transmitting force to the fixed seat 20, causing the two sets of third springs 19 to extend and retract according to the vibration, without interfering with the screening of the material. This allows the material to fall through the screen holes, achieving the screening effect. When the material clogs the screen holes, the second motor 22 is started to drive the threaded rod 23 to rotate, causing the movable sleeve 24 to extend smoothly in conjunction with the limiting block and limiting groove, allowing the side plate to... The push rod 26 on the extended plate 25 pushes into the inside of the screen hole to push out the stuck material. After pushing out, the second motor 22 can be restarted to drive the push rod 26 to reset. Then, the handle can be held to move the closing plate 27 upward, so that the magnetic block 28 and the iron block can be attracted to temporarily position the closing plate 27, exposing the port of the discharge chute. Then, the pull ring can be fastened to move the pull plate 16, stretching the second spring 15, so that the positioning post 21 is pulled out from the positioning hole of the lower fixed seat 20, and the pull plate 13 is pulled upward to reposition the positioning post 21 in the upper positioning hole. When the pull plate 13 moves, it can drive the first linkage plate to move together, so that the second linkage plate 29 at the other end of it deflects and drives the screen frame 11 and screen plate 12 to deflect and tilt around one end of the connecting plate 10, so that after it is raised, the pushed-out material slides down and can be discharged and collected along the discharge chute.

[0029] The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0030] 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 high-strength mullite castable production screening device comprising a screening box (1), characterized in that: The top of the screening box (1) is fitted with a feeding hopper (2). Two sets of crushing rollers (4) are rotatably connected to the inner side of the feeding hopper (2). A first motor (3) is installed at both ends of one side of the outer wall of the feeding hopper (2). The driving end of the first motor (3) extends into the inside of the feeding hopper (2) and is fixedly connected to one end of the crushing roller (4). A movable screening mechanism is installed inside the screening box (1). The movable screening mechanism includes a screening component and a linkage cleaning component. The screening component is used to screen the material, and the linkage cleaning component is used to clean and collect the material stuck on the screening component.

2. The high-strength mullite castable production screening device according to claim 1, characterized in that: The screening assembly includes guide plates (5) installed on both sides of the inner wall of the screening box (1). A screening groove is provided on one side of the inner wall of the screening box (1) below the guide plate (5). A first spring (6) is installed at both ends of the inner wall of the screening groove. A vibrating plate is installed at the other end of the first spring (6). The vibrating plate is slidably connected to the screening groove. A vibration motor (7) is installed on one side of the vibrating plate.

3. The screening device for producing high-strength mullite castables according to claim 2, characterized in that: The drive end of the vibration motor (7) is equipped with a cover plate (8), and a fixed cylinder (9) is installed at one top end of the cover plate (8). A connecting plate (10) is installed at one top end of the fixed cylinder (9), and a screen frame (11) is rotatably connected to one top end of the connecting plate (10). A screen plate (12) is installed on the inner wall of the screen frame (11).

4. The screening device for producing high-strength mullite castables according to claim 3, characterized in that: The linkage cleaning assembly includes a movable groove located inside the screening box (1) on the other side of the screen frame (11). A transfer groove is provided inside the screening box (1) on one side of the movable groove. A transfer plate (13) is slidably connected to the inner side of the transfer groove. The transfer plate (13) is slidably connected to the screening box (1). A connecting frame (14) is installed at one end of the transfer plate (13) extending to the outside of the screening box (1). A second spring (15) is installed on one side of the connecting frame (14). A pull plate (16) is installed at the other end of the second spring (15). A pull ring is rotatably connected to one end of the pull plate (16).

5. A high strength mullite castable production screening device as claimed in claim 4, wherein: The top of the screening box (1) is equipped with a column (17) on one side of the feed hopper (2). Two sets of fixing frames (18) are arranged on one side of the column (17). A third spring (19) is installed at both ends of the inner wall of the fixing frame (18). A fixing seat (20) is installed between the two sets of the third springs (19). A positioning hole is opened on one side of the fixing seat (20). A positioning column (21) is installed on the other side of the pull plate (16). The positioning column (21) is slidably connected to the connecting frame (14). The positioning column (21) is slidably connected to the positioning hole.

6. A high strength mullite castable production screening device according to claim 5, characterized by: A second motor (22) is installed at the bottom inner side of the fixed cylinder (9). A threaded rod (23) is installed at the drive end of the second motor (22). A movable sleeve (24) is threadedly connected to the outer side of the threaded rod (23). Limiting grooves are opened on both sides of the inner wall of the fixed cylinder (9). Limiting blocks are installed at both ends of the outer wall of the movable sleeve (24). The limiting blocks and the limiting grooves are slidably connected. A side plate is installed on one side of the outer wall of the movable sleeve (24). Multiple sets of extension plates (25) are installed on one side of the side plate. Multiple sets of top rods (26) that are slidably connected to the sieve holes in the sieve plate (12) are arranged on the top of the extension plates (25).

7. A high strength mullite castable production screening device according to claim 6, characterized by: A discharge trough is provided on one side of the outer wall of the screening box (1). A closed groove is provided inside the screening box (1) on one side of the discharge trough. A closed plate (27) is slidably connected to the inner side of the closed groove. The closed plate (27) is slidably connected to the screening box (1). A handle is installed at one end of the closed plate (27) extending to the top surface of the screening box (1). A magnetic block (28) is embedded in one side of the outer wall of the closed plate (27). An iron block that attracts the magnetic block (28) is embedded in one side of the inner wall of the closed groove. A first linkage plate is installed on one side of the outer wall of the transfer plate (13). A second linkage plate (29) is rotatably connected to the other end of the first linkage plate. The second linkage plate (29) is fixedly connected to one side of the screen frame (11).

Images