A fixed scraper installed in a balling disc

Abstract

The utility model belongs to the technical field of pelletizing equipment, concretely relates to a fixed scraper installed in the pelletizing disc, which comprises a scraper assembly and a fixed support connected with the scraper assembly, and the fixed support is connected with the pelletizing disc; the scraper assembly comprises a scraper handle, a first scraper base plate and a second scraper base plate, the lower end of the scraper handle is provided with a groove, and the first scraper base plate is provided with a first mounting hole in the groove; the first scraper base plate and the second scraper base plate are symmetrically arranged, alloy blocks are arranged at the two ends of the first scraper base plate and the second scraper base plate, ceramic sheets are arranged between the alloy blocks, and the ceramic sheets are arranged in an array; the fixed scraper in the utility model is composed of a high-strength manganese steel scraper base plate, alloy blocks and wear-resistant ceramic sheets, which can make the material flow smoothly in the pelletizing disc, avoid the problems of material accumulation and hindering ball formation, effectively improve the wear resistance of the fixed scraper, prolong the service life of the fixed scraper, and effectively reduce the production cost and downtime caused by frequent replacement of the scraper.

Description

Technical Field

[0001] This utility model belongs to the technical field of pelletizing equipment, specifically relating to a fixed scraper installed in a pelletizing disc. Background Technology

[0002] In the pelleting process, the pelleting stage is one of the key steps determining pellet quality and production efficiency. The pelleting disc, as a core piece of equipment, directly affects the pelleting effect through the cleanliness of its bottom surface and the distribution of materials. To maintain the efficient operation of the pelleting disc and prevent material accumulation at the bottom, which could lead to uneven or failed pelleting, the design and application of the scraper on the bottom surface of the disc are particularly important.

[0003] Currently, pelletizing plants commonly use two main types of scrapers on the bottom of the pelletizing pan: electric rotary scrapers and fixed scrapers on the lower pan. Electric rotary scrapers typically consist of multiple motors, reducers, and scraper bars. They are electrically driven to rotate the scrapers and clean the adhering material from the bottom of the pelletizing pan. However, the simultaneous operation of multiple motors significantly increases power and fuel consumption, raising production costs. Furthermore, the scraper bars are prone to loosening, displacement, or even detachment during long-term rotation, requiring frequent maintenance and component replacement, increasing maintenance costs and downtime. Fixed scrapers on the lower pan, usually installed at the bottom of the pelletizing pan, clean the material from the bottom by fixing it in place. During use, they are prone to entanglement with debris such as woven bags, requiring periodic shutdowns for cleaning, thus impacting production safety and operational efficiency. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a fixed scraper installed in a pelletizing disc, which solves the problems of high energy consumption, complex maintenance, easy entanglement of debris, and low replacement efficiency of existing scrapers.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A fixed scraper installed in a pelletizing pan is provided, including a scraper assembly and a fixed bracket connected to the scraper assembly, the fixed bracket being connected to the pelletizing pan; the scraper assembly includes a scraper handle and a first scraper base plate and a second scraper base plate connected to the scraper handle, the lower end of the scraper handle is provided with a groove, and a first mounting hole is provided in the groove; the first scraper base plate and the second scraper base plate are symmetrically arranged, and alloy blocks are provided at both ends of the first scraper base plate and the second scraper base plate, and ceramic sheets are provided between the alloy blocks, the ceramic sheets being arranged in an array.

[0007] The beneficial effects of adopting the above technical solution are as follows: The groove and the first mounting hole set at the lower end of the scraper handle facilitate symmetrical assembly with the first scraper substrate and the second scraper substrate, and also facilitate the replacement of the first scraper substrate and the second scraper substrate, improving maintenance efficiency. The symmetrical arrangement of the first scraper substrate and the second scraper substrate not only enhances the structural strength of the fixed scraper, but also facilitates the uniform distribution and smooth flow of materials in the pelletizing disc. The alloy blocks set at both ends of the first scraper substrate and the second scraper substrate have high hardness and wear resistance, which can effectively resist the impact and wear of materials, protect the first scraper substrate and the second scraper substrate, and thus extend the service life of the fixed scraper. At the same time, the ceramic sheets have good wear resistance and oxidation resistance, further enhancing the wear resistance of the fixed scraper. Moreover, the ceramic sheets are distributed in an array, which can more evenly distribute the force and improve the overall wear resistance of the scraper. In addition, the smooth surface of the ceramic sheets also helps to reduce the adhesion and entanglement of materials. In addition, the scraper handle is connected to the fixed bracket, which in turn is connected to the pelletizing tray. This allows the fixed scraper to be securely fixed to the pelletizing tray and to be adjusted synchronously according to the angle of the pelletizing tray, ensuring the stability and reliability of the fixed scraper during the operation of the pelletizing tray.

[0008] Furthermore, the fixed bracket includes an H-beam steel fixing frame and a fixing clamp set on the H-beam steel fixing frame, and the fixing clamp is connected to the upper end of the scraper handle.

[0009] Furthermore, the H-shaped steel fixing frame is welded to the crossbeam above the pelletizing plate, and triangular stiffening plates are provided between the H-shaped steel fixing frame and the crossbeam. The inner diameter of the fixing clamp matches the outer diameter of the scraper handle.

[0010] Furthermore, the fixing clamp is provided with a second mounting hole, and the upper end of the scraper handle is provided with a third mounting hole. The third mounting hole and the second mounting hole are connected by a pin.

[0011] The beneficial effects of adopting the above technical solution are as follows: The H-shaped steel fixing frame has high strength and good deformation capacity, which can provide stable support for the fixed scraper, ensuring that the fixed scraper remains stable during the high-speed rotation of the pelletizing disc and will not loosen or shift due to vibration or impact. The installation and removal of the fixed scraper can be quickly realized by tightening and loosening the fixing clamp, which greatly shortens the time required to replace the fixed scraper and improves maintenance efficiency. At the same time, the angle and height of the fixed scraper can be adjusted by the fixing clamp to adapt to the pelletizing needs under different working conditions, thereby improving the applicability and flexibility of the scraper.

[0012] Furthermore, the thickness of the ceramic sheet is 5mm.

[0013] The beneficial effects of adopting the above technical solution are as follows: the ceramic sheet has good hardness and wear resistance, which can effectively resist the impact and wear of materials. The 5mm thick ceramic sheet maintains wear resistance while having higher strength to withstand the friction force during the operation of the pelletizing disc, thereby significantly extending the service life of the fixed scraper and reducing the replacement frequency caused by wear, thus reducing production costs and downtime. At the same time, the surface of the ceramic sheet is smooth and does not easily adhere to materials, which can effectively reduce the entanglement of debris.

[0014] Furthermore, the first scraper substrate and the second scraper substrate are connected to the groove of the scraper handle by bolts.

[0015] The beneficial effects of adopting the above technical solution are as follows: the first scraper base plate and the second scraper base plate can be quickly installed in the groove of the scraper handle by bolt connection. The installation and disassembly are simple, which can not only ensure the stability and safety of operation, but also greatly reduce maintenance time and cost.

[0016] Furthermore, the first and second scraper substrates are made of manganese steel, and the thickness of the first and second scraper substrates is 30mm.

[0017] The beneficial effects of adopting the above technical solution are as follows: the first and second scraper substrates made of manganese steel can significantly improve the wear resistance of the fixed scraper and reduce the replacement frequency caused by wear. The 30mm thick first and second scraper substrates can ensure both strength and wear resistance, while also reducing production costs.

[0018] Furthermore, the height of both ends of the first and second scraper substrates is 60mm, and the height of their center is 200mm.

[0019] The beneficial effects of adopting the above technical solution are as follows: by designing the height of both ends of the scraper substrate to be 60mm and the center height to be 200mm, an arc-shaped structure is formed, which can better guide the flow of materials in the pelletizing tray. When the material passes through the fixed scraper, it can smoothly flip over the fixed scraper without being blocked or accumulating, thereby improving the pelletizing efficiency and quality. At the same time, the fixed scraper can more effectively clean the accumulated material at the bottom of the pelletizing tray during operation, avoiding material accumulation on the bottom plate, and further improving the working efficiency of the pelletizing tray.

[0020] Furthermore, the scraper handle is hollow tubular, and the thickness of the scraper handle is 10mm.

[0021] The beneficial effects of adopting the above technical solution are as follows: the hollow tubular structure of the scraper handle can significantly reduce the overall weight of the scraper, while the 10mm thickness can provide sufficient structural strength to ensure that the fixed scraper maintains stable operation under high impact and high vibration conditions, and can also reduce the amount of material used and reduce the weight.

[0022] In summary, the fixed scraper installed in the pelletizing tray provided by this utility model has the following beneficial effects:

[0023] (1) The fixed scraper is composed of a high-strength manganese steel scraper base plate, an alloy block and wear-resistant ceramic sheet, which can effectively improve the wear resistance of the fixed scraper and extend its service life, effectively reducing the production cost and downtime caused by frequent scraper replacement.

[0024] (2) The fixed scraper adopts an arc-shaped design with low ends and high middle, which allows the material to flow smoothly in the pelletizing plate, avoiding the problems of material accumulation and obstruction of pelletizing, and significantly improving pelletizing efficiency and quality.

[0025] (3) The fixed bracket is composed of H-beams and fixed clamps, and is connected to the scraper handle by a pin shaft, which ensures the stability of the fixed scraper in high-speed rotation and high vibration environment, effectively prevents the fixed scraper from loosening or falling off, improves the safety and reliability of equipment operation, and the fixed bracket can be flexibly adjusted according to the angle and specifications of the ball forming plate to adapt to different working conditions, enhancing the applicability and flexibility of the fixed scraper. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the installation of the fixed scraper and the fixed bracket in this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the fixed scraper in this utility model.

[0028] Figure 3 This is a side view of the fixed scraper in this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the first scraper substrate and the second scraper substrate in this utility model;

[0030] Figure 5 This is a schematic diagram of the installation of the alloy block and the ceramic sheet in this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the fixed bracket in this utility model;

[0032] The components include: 1. Scraper assembly; 2. Fixing bracket; 3. Scraper handle; 4. First scraper base plate; 5. Second scraper base plate; 6. Alloy block; 7. Ceramic sheet; 8. H-beam fixing frame; 9. Fixing clamp; and 10. Triangular rib plate. Detailed Implementation

[0033] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0034] like Figures 1-6 As shown, the fixed scraper installed in the pelletizing pan provided by this utility model includes a scraper assembly 1 and a fixed bracket 2 connected to the scraper assembly 1. The fixed bracket 2 is connected to the pelletizing pan. The scraper assembly 1 includes a scraper handle 3 and a first scraper base plate 4 and a second scraper base plate 5 connected to the scraper handle 3. The lower end of the scraper handle 3 is provided with a groove with a width of 30mm. At least three first mounting holes are provided in the groove, and the diameter of the first mounting holes is 20mm. The first scraper base plate 4 and the second scraper base plate 5 are symmetrically arranged and are connected to the groove of the scraper handle 3 by bolts. Alloy blocks 6 are provided at both ends of the first scraper base plate 4 and the second scraper base plate 5. Ceramic sheets 7 are arranged between the alloy blocks 6 and are distributed in an array. The groove and first mounting hole located at the lower end of the scraper handle 3 facilitate symmetrical assembly with the first scraper substrate 4 and the second scraper substrate 5, and also facilitate the replacement of the first scraper substrate 4 and the second scraper substrate 5, improving maintenance efficiency. The symmetrical arrangement of the first scraper substrate 4 and the second scraper substrate 5 enhances the structural strength of the fixed scraper and also facilitates the uniform distribution and smooth flow of materials in the pelletizing disc. The alloy blocks 6 located at both ends of the first scraper substrate 4 and the second scraper substrate 5 have high hardness and wear resistance, effectively resisting the impact and wear of materials, protecting the first scraper substrate 4 and the second scraper substrate 5, thereby extending the service life of the fixed scraper. At the same time, the ceramic discs 7 have good wear resistance and oxidation resistance, further enhancing the wear resistance of the fixed scraper. The ceramic discs 7 are arranged in an array, which can more evenly distribute the force and improve the overall wear resistance of the scraper. In addition, the smooth surface of the ceramic discs 7 also helps to reduce the adhesion and entanglement of materials. In addition, the scraper handle 3 is connected to the fixed bracket 2, and the fixed bracket 2 is connected to the pelletizing plate, which allows the fixed scraper to be firmly fixed on the pelletizing plate and can be adjusted synchronously according to the angle adjustment of the pelletizing plate, ensuring the stability and reliability of the fixed scraper during the operation of the pelletizing plate.

[0035] In this invention, the scraper handle 3 is a hollow tube with a thickness of 10mm. The hollow tube structure of the scraper handle 3 significantly reduces the overall weight of the scraper, while the 10mm thickness provides sufficient structural strength to ensure stable operation of the fixed scraper under high impact and high vibration conditions, while also reducing material usage and weight.

[0036] In this embodiment of the invention, the first scraper substrate 4 and the second scraper substrate 5 are made of manganese steel. At least three fourth mounting holes, each matching the first mounting hole, are provided on the first scraper substrate 4 and the second scraper substrate 5. The diameter of the fourth mounting hole is 20mm. The height of both ends of the first scraper substrate 4 and the second scraper substrate 5 is 60mm, the center height is 200mm, and the thickness is 30mm. The first scraper substrate 4 and the second scraper substrate 5, made of manganese steel, significantly improve the wear resistance of the fixed scraper, reducing the frequency of replacement due to wear. By designing the height of both ends of the scraper substrate to be 60mm and the center height to be 200mm, an arc-shaped structure is formed, which better guides the flow of material within the pelletizing tray. The material can smoothly pass over the fixed scraper without being blocked or accumulating, thereby improving pelletizing efficiency and quality. Simultaneously, the fixed scraper can more effectively clean the accumulated material at the bottom of the pelletizing tray during operation, preventing material accumulation on the bottom and further improving the working efficiency of the pelletizing tray.

[0037] In this embodiment of the invention, the alloy block 6 is welded to both ends of the first scraper substrate 4 and the second scraper substrate 5. The alloy block 6 has a width of 30mm and a thickness of 20mm. The ceramic sheet 7 has a size of 20mm*20mm and a thickness of 5mm. The ceramic sheet 7 is made of alumina material. The ceramic sheet 7 and the alloy block 6 are tightly connected to the first scraper substrate 4 and the second scraper substrate 5 through a high-temperature resistant and high-strength adhesive. This not only provides higher strength to withstand the friction and impact forces during the operation of the pelletizing disc, but also significantly extends the service life of the fixed scraper, reduces the replacement frequency due to wear, lowers production costs and downtime, and effectively reduces the entanglement of debris.

[0038] like Figure 6As shown, the fixed bracket 2 includes an H-shaped steel fixed frame 8 and a fixing clamp 9 set on the H-shaped steel fixed frame 8. The fixing clamp 9 is connected to the upper end of the scraper handle 3. The H-shaped steel fixed frame 8 is welded to the crossbeam above the pelletizing plate. A triangular rib plate 10 is set between the H-shaped steel fixed frame 8 and the crossbeam. The triangular rib plate 10 is made of 20mm thick manganese steel plate. The inner diameter of the fixing clamp 9 matches the outer diameter of the scraper handle 3. The fixing clamp 9 is provided with a second mounting hole. The upper end of the scraper handle 3 is provided with at least 3 third mounting holes. The diameter of the third mounting holes is 30mm. The third mounting holes are connected to the second mounting holes by a pin. The H-beam steel fixing frame 8 has high strength and good deformation capacity, providing stable support for the fixed scraper. This ensures that the fixed scraper remains stable during the high-speed rotation of the pelletizing disc and will not loosen or shift due to vibration or impact. The use of clamps such as half-joints 9 allows for quick installation and removal of the fixed scraper by tightening and loosening the clamps, greatly shortening the time required to replace the fixed scraper and improving maintenance efficiency. At the same time, the angle and height of the fixed scraper can be adjusted through the clamps 9 to adapt to the pelletizing needs under different working conditions, improving the applicability and flexibility of the scraper.

[0039] The installation method of this utility model is as follows: H-shaped steel fixing frame 8 and triangular stiffener plate 10 are welded into fixing bracket 2. Fixing bracket 2 is welded to the fixing crossbeam above the pelletizing plate. Half-joint fixing clamp 9 is installed on fixing bracket 2. Through the second mounting hole on fixing clamp 9 and the third mounting hole on scraper handle 3, a pin is used to connect fixing clamp 9 and scraper handle 3 to ensure that the fixed scraper is firmly fixed on fixing bracket 2. The angle and height of fixed scraper can be quickly adjusted by removing pin and loosening fixing clamp 9 to adapt to different working conditions. Meanwhile, when installing the fixed scrapers, their distribution can be set according to the diameter and rotation direction of the pelletizing disc. They should be arranged 45° away from the center of the pelletizing disc, with the first fixed scraper, 1.2m long, installed at the upper semicircle position above the center. Then, using the 45° angled line as a reference, the second and third fixed scrapers, each 1.0mm long, should be installed sequentially. This ensures that the arc trajectory of each fixed scraper covers the trajectory of the previous fixed scraper, thus ensuring that the fixed scrapers achieve the best effect during operation.

[0040] In summary, the fixed scraper installed in the pelletizing pan provided by this utility model is composed of a high-strength manganese steel scraper base plate, an alloy block 6, and a wear-resistant ceramic sheet 7. It allows the material to flow smoothly in the pelletizing pan, avoiding material accumulation and obstruction of pellet formation. It can effectively improve the wear resistance of the fixed scraper and extend its service life, effectively reducing the production cost and downtime caused by frequent scraper replacement.

Claims

1. A fixed scraper installed in a pelletizing tray, characterized in that: The device includes a scraper assembly (1) and a fixed bracket (2) connected to the scraper assembly (1), the fixed bracket (2) being connected to a pelletizing disc; the scraper assembly (1) includes a scraper handle (3) and a first scraper base plate (4) and a second scraper base plate (5) connected to the scraper handle (3), the lower end of the scraper handle (3) is provided with a groove, and a first mounting hole is provided in the groove; the first scraper base plate (4) and the second scraper base plate (5) are symmetrically arranged, and alloy blocks (6) are provided at both ends of the first scraper base plate (4) and the second scraper base plate (5), and ceramic sheets (7) are provided between the alloy blocks (6), the ceramic sheets (7) being arranged in an array.

2. The fixed scraper installed in the pelletizing tray according to claim 1, characterized in that: The fixed bracket (2) includes an H-beam steel fixed frame (8) and a fixed clamp (9) set on the H-beam steel fixed frame (8), and the fixed clamp (9) is connected to the upper end of the scraper handle (3).

3. The fixed scraper installed in the pelletizing tray according to claim 2, characterized in that: The H-shaped steel fixing frame (8) is welded to the crossbeam above the ball-forming plate. A triangular rib plate (10) is provided between the H-shaped steel fixing frame (8) and the crossbeam. The inner diameter of the fixing clamp (9) matches the outer diameter of the scraper handle (3).

4. The fixed scraper installed in the pelletizing tray according to claim 2, characterized in that: The fixing clamp (9) is provided with a second mounting hole, and the upper end of the scraper handle (3) is provided with a third mounting hole. The third mounting hole and the second mounting hole are connected by a pin.

5. The fixed scraper installed in the pelletizing tray according to claim 1, characterized in that: The ceramic sheet (7) has a thickness of 5 mm.

6. The fixed scraper installed in the pelletizing tray according to claim 1, characterized in that: The first scraper substrate (4) and the second scraper substrate (5) are connected to the groove of the scraper handle (3) by bolts.

7. The fixed scraper installed in the pelletizing tray according to claim 6, characterized in that: The first scraper substrate (4) and the second scraper substrate (5) are made of manganese steel, and the thickness of the first scraper substrate (4) and the second scraper substrate (5) is 30mm.

8. The fixed scraper installed in the pelletizing tray according to claim 7, characterized in that: The height of the two ends of the first scraper substrate (4) and the second scraper substrate (5) is 60mm, and the height of the center is 200mm.

9. The fixed scraper installed in the pelletizing tray according to claim 1, characterized in that: The scraper handle (3) is hollow tubular and has a thickness of 10 mm.

Images