A multi-roller kiln brick breaker

Abstract

The utility model relates to kiln brick crushing technical field, and disclose a kind of multi-roller kiln brick crusher, including shell and with the transmission shaft of external driving motor connection, the inside of shell is provided with crushing bin, the inside of crushing bin is equipped with first crushing roller and second crushing roller, the transmission shaft is fixedly connected with the one end of first crushing roller to drive first crushing roller rotation, the top and bottom of shell are provided with feed inlet and discharge port respectively, the utility model provides a kind of multi-roller kiln brick crusher, two driving wheels synchronous rotation are made by belt, tensioning mechanism can be abutted in one side of belt, after the relaxation of belt, it can be tensioned, ensure the stability of transmission process, reduce the risk of skidding caused by belt relaxation, by setting replacement mechanism outside first crushing roller, after wearing, can be targeted to the seriously worn part targeted replacement.

Description

Technical Field

[0001] This utility model relates to the field of kiln brick crushing technology, specifically to a multi-roller kiln brick crusher. Background Technology

[0002] In kilns widely used in industries such as metal smelting, glass manufacturing, and ceramic sintering, the inner walls are usually constructed with refractory materials such as refractory bricks to withstand high-temperature environments. During long-term high-temperature operation, molten or volatilized metals (such as zinc, lead, tin, copper, and their alloys) will inevitably seep into the refractory materials of the kiln inner wall. This metal penetration phenomenon intensifies as the kiln operation time increases, resulting in a large amount of metal residue adhering to and accumulating in the refractory materials, especially in the part near the working surface of the furnace.

[0003] When the kiln is maintained or reaches the end of its lifespan, these waste refractory materials (mainly refractory bricks) with metal residue are dismantled. Since they often have metal attached inside, they have a certain recycling value. During recycling, the kiln bricks are often crushed into small particles to facilitate subsequent transportation and processing.

[0004] The current method for crushing kiln bricks is to use a four-roll crusher. However, this method often has certain shortcomings. First, existing four-roll crushers often use belt drives, which can become loose over time, increasing the risk of slippage during transmission. Second, due to the different positions of the feed inlet, the wear of different parts of the crushing rollers will vary, requiring the replacement of the entire crushing roller. This replacement process is not only complex, but also results in material waste at the less worn parts. Therefore, a device is needed to solve these problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a multi-roller brick crusher, which solves the problems of high maintenance costs and slippage risk that occur in four-roller crushers after prolonged use.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a multi-roller brick crusher, comprising a shell and a transmission shaft connected to an external drive motor, wherein a crushing chamber is provided inside the shell, and a first crushing roller and a second crushing roller are provided inside the crushing chamber, and the transmission shaft is fixedly connected to one end of the first crushing roller to drive the first crushing roller to rotate, wherein a feed inlet and a discharge outlet are respectively provided at the top and bottom of the shell, and the number of the first crushing roller and the second crushing roller are two respectively; A maintenance cover is fixedly connected to one side of the housing by bolts. A first drive wheel and a second drive wheel are provided on the front of the maintenance cover. The first drive wheel is fixedly connected to one end of the first crushing roller by a keyway, and the second drive wheel is fixedly connected to one end of the second crushing roller by a keyway. The first drive wheel and the second drive wheel are connected by belt drive. A tensioning mechanism is provided on one side of the housing, and a replacement mechanism is provided on the outer surface of the first crushing roller.

[0007] Optionally, the replacement mechanism includes a front connecting end, a middle connecting end, and a rear connecting end, which are sequentially spliced ​​together. There are multiple middle connecting ends. Guide blocks are fixedly connected to the inner walls of the front connecting end, the middle connecting end, and the rear connecting end. A guide groove along the axis of the first crushing roller is formed on the outer surface of the first crushing roller. The guide blocks are guided and connected to the inner walls of the guide grooves to prevent the front connecting end, the middle connecting end, and the rear connecting end from rotating circumferentially.

[0008] Optionally, the outer surfaces of the front connecting end, the middle connecting end, and the rear connecting end are all fixedly connected with crushing teeth to improve crushing efficiency.

[0009] Optionally, a positioning block is fixedly connected to the front connecting end and the middle connecting end on the side near the front connecting end. A positioning groove is provided on the other side of the middle connecting end and the side of the rear connecting end near the middle connecting end. The positioning groove is adapted to the size of the positioning block and can be detachably connected to prevent relative rotation between the front connecting end, the middle connecting end and the rear connecting end.

[0010] Optionally, the tensioning mechanism includes a fixed plate, a movable plate, and a threaded rod. The fixed plate is fixedly connected to one side of the housing, the movable plate is located on one side of the fixed plate and fits against one side of the inspection cover, the threaded rod passes through the fixed plate and is threadedly connected to the fixed plate, and one end of the threaded rod is rotatably connected to one side of the movable plate.

[0011] Optionally, the movable plate is provided with a guide wheel at the end away from the threaded rod, and the outer surface of the guide wheel is in contact with the outer surface of the belt to tension the belt.

[0012] Optionally, a fixing nut is threaded onto the outer surface of the threaded rod, and one side of the fixing nut is in contact with one side of the fixing plate.

[0013] Optionally, a collecting plate is fixedly connected inside the crushing chamber below the feed inlet, and the bottom of the crushing chamber is inclined towards the discharge outlet.

[0014] This utility model provides a multi-roller kiln brick crusher, which has the following beneficial effects: This utility model provides a multi-roller kiln brick crusher. Through the coordinated arrangement of a first crushing roller and a second crushing roller, the kiln bricks are initially crushed by the first roller, followed by secondary crushing by the second roller, improving crushing efficiency. The coordinated arrangement of a first drive wheel, a second drive wheel, and a tensioning mechanism, along with a belt, allows the two drive wheels to rotate synchronously. The tensioning mechanism abuts against one side of the belt, allowing for tensioning when the belt becomes slack, ensuring stable transmission and reducing the risk of slippage due to belt slack. A replacement mechanism located outside the first crushing roller, covering its outer surface, allows for targeted replacement of severely worn sections after wear occurs, eliminating the need to replace the entire crushing roller and reducing subsequent maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side sectional view of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of the first crushing roller of this utility model; Figure 4 This is a cross-sectional structural schematic diagram of the tensioning mechanism of this utility model.

[0016] In the diagram: 1. Shell; 2. Drive shaft; 3. Crushing chamber; 4. First crushing roller; 5. Second crushing roller; 6. Inspection cover; 7. Feed inlet; 8. Discharge outlet; 9. First drive wheel; 10. Second drive wheel; 11. Front connecting end; 12. Middle connecting end; 13. Rear connecting end; 14. Guide block; 15. Guide groove; 16. Crushing tooth; 17. Positioning block; 18. Positioning groove; 19. Fixed plate; 20. Movable plate; 21. Threaded rod; 22. Guide wheel; 23. Fixing nut; 24. Collection plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the 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 scope of protection of the present utility model.

[0018] Please see Figures 1 to 4This utility model provides a technical solution: a multi-roller brick crusher, including a shell 1 and a transmission shaft 2 connected to an external drive motor. The shell 1 has a crushing chamber 3 inside, and the crushing chamber 3 has a first crushing roller 4 and a second crushing roller 5 inside. The transmission shaft 2 is fixedly connected to one end of the first crushing roller 4 to drive the first crushing roller 4 to rotate. The top and bottom of the shell 1 have a feed inlet 7 and a discharge outlet 8, respectively. The number of the first crushing roller 4 and the second crushing roller 5 are two.

[0019] A maintenance cover 6 is fixedly connected to one side of the housing 1 by bolts. A first drive wheel 9 and a second drive wheel 10 are provided on the front of the maintenance cover 6. The first drive wheel 9 is fixedly connected to one end of the first crushing roller 4 by a keyway. The second drive wheel 10 is fixedly connected to one end of the second crushing roller 5 by a keyway. The first drive wheel 9 and the second drive wheel 10 are connected by belt drive. A tensioning mechanism is provided on one side of the housing 1. A replacement mechanism is provided on the outer surface of the first crushing roller 4.

[0020] The drive shaft 2 drives the first crushing roller 4 inside the housing 1 to rotate. There are two first crushing rollers 4. The two drive shafts 2 rotate relative to each other, causing the two first crushing rollers 4 to rotate towards the center, thus initially crushing the kiln bricks. The kiln bricks crushed by the first crushing rollers 4 fall into the second crushing roller 5. One end of the first crushing roller 4 is connected to the first drive wheel 9, which is connected to the second drive wheel 10 via a belt. When the first crushing roller 4 rotates, it drives the first drive wheel 9 to rotate, which in turn drives the second drive wheel 10 to rotate, further driving the internal second crushing roller 5 to rotate. There are also two second crushing rollers 5, which rotate towards the center, crushing the kiln bricks. After the first crushing roller 4 crushes the kiln bricks, the falling bricks undergo secondary crushing, breaking them into finer particles. Both the first drive wheel 9 and the second drive wheel 10 are detachable. During subsequent maintenance, the two drive wheels can be removed, and the maintenance cover 6 can be removed to access and maintain the internal first crushing roller 4 and second crushing roller 5. Kiln bricks are fed into the top feed inlet 7, crushed, and discharged to the outside through the bottom discharge outlet 8. A tensioning mechanism tightens the belt to reduce the possibility of slippage during rotation. A replacement mechanism is fitted onto the outer surface of the first crushing roller 4, replacing it in crushing the kiln bricks. After prolonged use, the replacement mechanism can be replaced to reduce maintenance costs. Figure 2 Based on the cross-sectional view in the figure, the first crushing roller 4 and the second crushing roller 5 on the left rotate clockwise, while the first crushing roller 4 and the second crushing roller 5 on the right rotate counterclockwise. Both crushing rollers on both sides rotate towards the middle, thereby crushing the kiln bricks.

[0021] In this embodiment, as a preferred option, the replacement mechanism includes a front connecting end 11, a middle connecting end 12, and a rear connecting end 13, which are sequentially spliced ​​together. There are multiple middle connecting ends 12. Guide blocks 14 are fixedly connected to the inner walls of each of the front connecting end 11, middle connecting end 12, and rear connecting end 13. A guide groove 15 along the axis of the first crushing roller 4 is formed on the outer surface of the first crushing roller 4. The guide blocks 14 are guided and connected to the inner walls of the guide grooves 15 to guide the front connecting end 11, middle connecting end 12, and rear connecting end 13. 13. Circumferential anti-rotation: Crushing teeth 16 are fixedly connected to the outer surfaces of the front connecting end 11, the middle connecting end 12 and the rear connecting end 13 to improve crushing efficiency. Positioning blocks 17 are fixedly connected to the side of the front connecting end 11 and the middle connecting end 12 near the front connecting end 11. Positioning grooves 18 are provided on the other side of the middle connecting end 12 and the side of the rear connecting end 13 near the middle connecting end 12. The positioning grooves 18 are adapted to the size of the positioning blocks 17 and can be detachably connected to prevent relative rotation between the front connecting end 11, the middle connecting end 12 and the rear connecting end 13.

[0022] The replacement mechanism is composed of a front connecting end 11, a middle connecting end 12, and a rear connecting end 13. There are multiple middle connecting ends 12, the number of which is adjusted according to the length of the first crushing roller 4. These multiple middle connecting ends 12 can be spliced ​​together. When the front connecting end 11 and the rear connecting end 13 are spliced ​​with the middle connecting end 12, the positioning block 17 on the front connecting end 11 can be inserted into the positioning groove 18 on the middle connecting end 12, and the positioning block 17 on the middle connecting end 12 can be inserted into the positioning groove 18 on the rear connecting end 13, thereby fixing the three together and preventing axial rotation. Furthermore, when the three are installed on the first crushing roller 4, the guide block 14 on the inner wall can engage with the guide groove. The 15-guide sliding connection limits the installation position during installation, preventing the front connecting end 11, middle connecting end 12, and rear connecting end 13 from rotating around the first crushing roller 4, thus improving the stability of the crushing process. After prolonged use, the front connecting end 11, middle connecting end 12, and rear connecting end 13 can be removed from the first crushing roller 4, and the more worn parts can be replaced individually, while the remaining parts can continue to be used, reducing replacement costs. The crushing chambers 3 of the front connecting end 11, middle connecting end 12, and rear connecting end 13 installed on the two first crushing rollers 4 are staggered, and the two crushing teeth 16 can interlock during rotation, improving the crushing efficiency of kiln bricks.

[0023] In this embodiment, as a preferred solution, the tensioning mechanism includes a fixed plate 19, a movable plate 20, and a threaded rod 21. The fixed plate 19 is fixedly connected to one side of the housing 1. The movable plate 20 is disposed on one side of the fixed plate 19 and is attached to one side of the inspection cover 6. The threaded rod 21 passes through the fixed plate 19 and is threadedly connected to the fixed plate 19. One end of the threaded rod 21 is rotatably connected to one side of the movable plate 20. A guide wheel 22 is provided at the end of the movable plate 20 away from the threaded rod 21. The outer surface of the guide wheel 22 is attached to the outer surface of the belt to tension the belt. A fixing nut 23 is threadedly connected to the outer surface of the threaded rod 21. One side of the fixing nut 23 is attached to one side of the fixed plate 19.

[0024] During the rotation of the threaded rod 21, the threaded rod 21 can push the movable plate 20 on one side to move. The movable plate 20 fits against the inspection cover 6. When the threaded rod 21 rotates, it prevents the movable plate 20 from rotating. During the movement of the movable plate 20, it drives the guide wheel 22 to move together, so that the guide wheel 22 fits against the outer surface of the belt to tighten the belt. At the same time, the guide wheel 22 can rotate, reducing frictional resistance when in contact with the belt. There are two fixing nuts 23, which are located on both sides of the fixing plate 19. After adjusting the position of the threaded rod 21, the fixing nuts 23 are fitted together with the fixing plate 19 to prevent the threaded rod 21 from rotating and improve the stability during use.

[0025] In this embodiment, as a preferred option, a collecting plate 24 is fixedly connected inside the crushing chamber 3 below the feed inlet 7, and the bottom of the crushing chamber 3 is provided with an inclination angle toward the discharge outlet 8.

[0026] The collecting plate 24 can gather the input material to the middle of the first crushing roller 4 to prevent the material from falling outside the first crushing roller 4 and improve the crushing efficiency. The inclination angle at the bottom of the crushing chamber 3 can speed up the discharge speed and discharge the material in the crushing chamber 3 as much as possible to reduce the internal residue.

[0027] In this invention, the working steps of the device are as follows: 1. After fixing the device in position, connect the drive shaft 2 to the external drive motor so that the drive motor drives the drive shaft 2 to rotate. Furthermore, the drive shaft 2 drives the internal first crushing roller 4 and second crushing roller 5 to rotate. The two drive shafts 2 rotate in opposite directions and converge towards the middle, so that the two first crushing rollers 4 can crush the kiln bricks in the middle. 2. The kiln bricks to be crushed are fed into the feed inlet 7 above the shell 1, and after being crushed by the first crushing roller 4 and the second crushing roller 5, they are discharged from the discharge outlet 8 at the bottom. 3. After the belt has become loose after a long period of use, rotate the threaded rod 21 to push the guide wheel 22 to one side, so that the guide wheel 22 contacts the belt and tightens the belt. After adjusting the position, rotate the fixing nut 23 so that the two fixing nuts 23 are clamped on both sides of the fixing plate 19 respectively, preventing the threaded rod 21 from continuing to rotate. 4. Remove the first drive wheel 9 and the second drive wheel 10, and remove the inspection cover 6 from the top. At this time, the inside of the crushing chamber 3 can be inspected and maintained. If the replacement mechanism is severely worn, remove the entire replacement mechanism and replace one of the severely worn connection ends. After replacement, reinstall the replacement mechanism onto the first crushing roller 4. Then, reinstall the inspection cover 6, the first drive wheel 9 and the second drive wheel 10 to continue to be used.

[0028] The specific embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A multi-roller kiln brick crusher, characterized in that: The device includes a housing (1) and a drive shaft (2) connected to an external drive motor. The housing (1) has a crushing chamber (3) inside. The crushing chamber (3) has a first crushing roller (4) and a second crushing roller (5) inside. The drive shaft (2) is fixedly connected to one end of the first crushing roller (4) to drive the first crushing roller (4) to rotate. The top and bottom of the housing (1) have a feed inlet (7) and a discharge outlet (8) respectively. The number of the first crushing roller (4) and the second crushing roller (5) are two respectively. A maintenance cover (6) is fixedly connected to one side of the housing (1) by bolts. The front of the maintenance cover (6) is provided with a first drive wheel (9) and a second drive wheel (10). The first drive wheel (9) is fixedly connected to one end of the first crushing roller (4) by a keyway. The second drive wheel (10) is fixedly connected to one end of the second crushing roller (5) by a keyway. The first drive wheel (9) and the second drive wheel (10) are connected by belt drive. A tensioning mechanism is provided on one side of the housing (1). A replacement mechanism is provided on the outer surface of the first crushing roller (4).

2. The multi-roller brick crusher according to claim 1, characterized in that: The replacement mechanism includes a front connecting end (11), a middle connecting end (12), and a rear connecting end (13). The front connecting end (11), the middle connecting end (12), and the rear connecting end (13) are spliced ​​together in sequence. There are multiple middle connecting ends (12). The inner walls of the front connecting end (11), the middle connecting end (12), and the rear connecting end (13) are all fixedly connected with guide blocks (14). The outer surface of the first crushing roller (4) is provided with a guide groove (15) along the axis of the first crushing roller (4). The guide block (14) is guided and connected to the inner wall of the guide groove (15) to prevent the front connecting end (11), the middle connecting end (12), and the rear connecting end (13) from rotating circumferentially.

3. The multi-roller brick crusher according to claim 2, characterized in that: The outer surfaces of the front connecting end (11), the middle connecting end (12) and the rear connecting end (13) are all fixedly connected with crushing teeth (16) to improve crushing efficiency.

4. A multi-roller brick crusher according to claim 3, characterized in that: The front connecting end (11) and the middle connecting end (12) are both fixedly connected to a positioning block (17) on the side near the front connecting end (11). The other side of the middle connecting end (12) and the side of the rear connecting end (13) near the middle connecting end (12) are both provided with positioning grooves (18). The positioning grooves (18) are adapted to the size of the positioning block (17) and are detachably connected to prevent relative rotation between the front connecting end (11), the middle connecting end (12) and the rear connecting end (13).

5. A multi-roller brick crusher according to any one of claims 1-4, characterized in that: The tensioning mechanism includes a fixed plate (19), a movable plate (20), and a threaded rod (21). The fixed plate (19) is fixedly connected to one side of the housing (1). The movable plate (20) is located on one side of the fixed plate (19) and fits against one side of the inspection cover (6). The threaded rod (21) passes through the fixed plate (19) and is threadedly connected to the fixed plate (19). One end of the threaded rod (21) is rotatably connected to one side of the movable plate (20).

6. A multi-roller brick crusher according to claim 5, characterized in that: The movable plate (20) is provided with a guide wheel (22) at one end away from the threaded rod (21). The outer surface of the guide wheel (22) is in contact with the outer surface of the belt to tension the belt.

7. A multi-roller brick crusher according to claim 6, characterized in that: The outer surface of the threaded rod (21) is threaded with a fixing nut (23), and one side of the fixing nut (23) is in contact with one side of the fixing plate (19).

8. A multi-roller brick crusher according to any one of claims 1-4, characterized in that: The crushing chamber (3) is fixedly connected to a collecting plate (24) below the feed inlet (7), and the bottom of the crushing chamber (3) is inclined towards the discharge outlet (8).

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