Internal structure of ball mill for producing solid waste ultrafine powder
By designing the internal structure of the ball mill, using the meshing and centrifugal force of the outer cylinder, the second inner cylinder and the third inner cylinder, the problem of low efficiency in producing ultrafine powder by the existing ball mill is solved, and a faster crushing effect is achieved.
Patent Information
- Application Number
- CN202422179891.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-06
AI Technical Summary
Existing ball mills are inefficient when producing ultrafine powders, which takes more time, which affects the milling efficiency.
An internal structure of a ball mill for the production of solid waste ultrafine powder was designed, including an outer cylinder, a second inner cylinder and a third inner cylinder. By setting up tooth sticks and serrated meshing, the material milling is accelerated by using centrifugal force in different directions, combining the design of different inner space sizes and limit rings to ensure rotation stability.
Through the centrifugal force in different directions, the material is crushed faster during the grinding process, shortening working time and improving working efficiency.
Smart Images
Figure CN223113179U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ball mills, and particularly relates to an internal structure of a ball mill for producing ultra-fine powder of solid waste. Background Technique
[0002] A ball mill is a commonly used ore crushing equipment, which is used to crush raw materials into powdery materials. By colliding and rubbing the materials with spheres, the crushing, mixing and grinding of the materials are realized. Its structure is simple, the operation is convenient, and the grinding efficiency is high. It is widely used in industries such as mines, metallurgy, building materials, and chemicals.
[0003] Existing ball mills place different spherical grinding materials inside the equipment. As the cylinder rotates, under the action of gravity and centrifugal force, they reach a certain height and then continuously fall and are thrown up, impacting the materials to crush the materials into powders of the required size. However, if it is necessary to grind into ultra-fine powder size, it takes a long time, which will affect the grinding efficiency. Therefore, this application provides an internal structure of a ball mill for producing ultra-fine powder of solid waste to meet the requirements. Content of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide an internal structure of a ball mill for producing ultra-fine powder of solid waste to solve the problem that it takes a long time to grind into ultra-fine powder size in the existing technology, which will affect the grinding efficiency.
[0005] To solve the above technical problem, the utility model provides the following technical solutions:
[0006] An internal structure of a ball mill for producing ultra-fine powder of solid waste, including a bottom plate. Both sides of the top of the bottom plate are fixedly connected with support seats. An outer cylinder is arranged above the bottom plate. Both ends of the outer cylinder are threadedly connected with protective covers through a plurality of first bolts. The protective covers at both ends of the outer cylinder are respectively fixedly connected with a feed pipe and a discharge pipe. The feed pipe and the discharge pipe both penetrate through the support seats. The inner wall of the middle of the outer cylinder is fixedly connected with a second inner cylinder. The inner wall of the second inner cylinder is provided with first sawteeth. A third inner cylinder is installed inside the second inner cylinder. Both ends of the third inner cylinder are provided with chutes. The outer surface of the third inner cylinder is provided with second sawteeth. A plurality of tooth rods are arranged between the second inner cylinder and the third inner cylinder. The tooth rods are meshed with both the first sawteeth and the second sawteeth. Both ends of the third inner cylinder are installed with first inner cylinders. One end of the first inner cylinder close to the third inner cylinder is sleeved with the third inner cylinder through the chute. The other end of the first inner cylinder away from the third inner cylinder is provided with a communication port, which is respectively communicated with the feed pipe and the discharge pipe. Steel balls are placed inside both the first inner cylinder and the third inner cylinder.
[0007] Preferably, a plurality of second bolts are threadedly connected to both sides of the outer surface of the outer cylinder, and the first inner cylinder is threadedly connected to the outer cylinder through the second bolts.
[0008] Preferably, an external gear ring is fixedly connected to the outer surface of one end of the outer cylinder, a motor is fixedly connected to the top of the bottom plate, an output shaft of the motor is fixedly connected to a gearbox, an output shaft of the gearbox is fixedly connected to a driving gear, and the driving gear meshes with the external gear ring.
[0009] Preferably, a filter screen is fixedly connected to the inside of the first inner cylinder, and the filter holes of the filter screen inside the first inner cylinder near the feed pipe are larger than the filter holes of the filter screen inside the first inner cylinder near the discharge pipe.
[0010] Preferably, the internal space of the first inner cylinder near the feed pipe is larger than the internal space of the first inner cylinder near the discharge pipe.
[0011] Preferably, limit rings for restricting the tooth rods are installed on the outer surfaces of both ends of the third inner cylinder, and the limit rings are threadedly connected to the third inner cylinder through a plurality of third bolts.
[0012] Compared with the prior art, the present utility model has at least the following beneficial effects:
[0013] In the above solution, by setting the outer cylinder, when the device needs to work, the motor is started, the output shaft of the gearbox drives the driving gear to rotate, and then the outer cylinder is rotated through the external gear ring to start working. By setting the first inner cylinder, the second inner cylinder and the third inner cylinder, during work, the material is poured into the first inner cylinder from the feed pipe. The first inner cylinder will rotate together with the outer cylinder, causing the material inside the first inner cylinder connected to the feed pipe to rotate and be continuously struck by the steel balls. When the material is crushed to a size that can pass through the filter holes of the filter screen inside the first inner cylinder connected to the feed pipe, it will enter the inside of the third inner cylinder through the filter holes of the filter screen. When the outer cylinder drives the second inner cylinder to rotate, it will cause a plurality of tooth rods to rotate, and thus the third inner cylinder is rotated through the second saw teeth. The third inner cylinder rotates in the opposite direction to the first inner cylinder during rotation, causing the material in the third inner cylinder to be subjected to a centrifugal force in the opposite direction, enabling the material to be crushed more comprehensively and quickly. When the material is crushed to a size that can pass through the filter screen inside the first inner cylinder connected to the discharge pipe, the material enters the first inner cylinder connected to the discharge pipe and continues to be subjected to a centrifugal force in another direction, causing the material to be ground into powder more quickly, and thus is transported to the outside through the communication port and the discharge pipe. The advantage of this is that the material is subjected to reaction forces in different directions during the grinding process, enabling the material to be ground into powder more quickly, shortening the working time, and improving the working efficiency.
[0014] By setting different inner space sizes of the first inner cylinder, the first inner cylinder close to the feed pipe can store more unmilled materials. By setting the limit ring, the toothed rod is restricted between the second inner cylinder and the third inner cylinder and will not be thrown out of the second inner cylinder due to the centrifugal force during rotation, effectively ensuring the rotation direction of the third inner cylinder. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present disclosure and, together with the specification, are further used to explain the principles of the present disclosure and enable those skilled in the relevant art to implement and use the present disclosure.
[0016] Figure 1 FIG. is a schematic three-dimensional structure diagram of the internal structure of a ball mill for the production of solid waste ultrafine powder;
[0017] Figure 2 FIG. is a schematic three-dimensional structure diagram of the cross-section of the outer cylinder;
[0018] Figure 3 FIG. is a schematic enlarged three-dimensional structure diagram of the second inner cylinder;
[0019] Figure 4 FIG. is a schematic enlarged cross-sectional structure diagram of the first inner cylinder.
[0020] [REFERENCE NUMERALS]
[0021] 1, bottom plate; 2, support seat; 3, outer cylinder; 4, feed pipe; 5, discharge pipe; 6, motor; 7, gearbox; 8, drive gear; 9, external tooth ring; 10, protective cover; 11, first bolt; 12, second bolt; 13, first inner cylinder; 14, communication port; 15, second inner cylinder; 16, first sawtooth; 17, toothed rod; 18, third inner cylinder; 19, second sawtooth; 20, chute; 21, filter screen; 22, limit ring; 23, third bolt.
[0022] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic purposes and is not intended to limit the present invention to this specific structure, device and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The following will describe in detail the internal structure of a ball mill for producing solid waste ultrafine powder provided by the present utility model in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present utility model.
[0024] As Figures 1-4 shown, an embodiment of the present utility model provides an internal structure of a ball mill for producing solid waste ultrafine powder, including a bottom plate 1. Both sides of the top of the bottom plate 1 are fixedly connected with support seats 2. An outer cylinder 3 is arranged above the bottom plate 1. Both ends of the outer cylinder 3 are threadedly connected with protective covers 10 through a plurality of first bolts 11. The protective covers 10 at both ends of the outer cylinder 3 are respectively fixedly connected with a feed pipe 4 and a discharge pipe 5. The feed pipe 4 and the discharge pipe 5 both penetrate through the support seats 2. The inner wall of the middle of the outer cylinder 3 is fixedly connected with a second inner cylinder 15. The inner wall of the second inner cylinder 15 is provided with first sawteeth 16. A third inner cylinder 18 is installed inside the second inner cylinder 15. Both ends of the third inner cylinder 18 are provided with chutes 20. The outer surface of the third inner cylinder 18 is provided with second sawteeth 19. A plurality of tooth rods 17 are arranged between the second inner cylinder 15 and the third inner cylinder 18. The tooth rods 17 are engaged with both the first sawteeth 16 and the second sawteeth 19. Both ends of the third inner cylinder 18 are installed with first inner cylinders 13. One end of the first inner cylinder 13 close to the third inner cylinder 18 is sleeved with the third inner cylinder 18 through the chute 20. One end of the first inner cylinder 13 far from the third inner cylinder 18 is provided with a communication port 14. The communication port 14 is respectively communicated with the feed pipe 4 and the discharge pipe 5. Steel balls are placed inside both the first inner cylinder 13 and the third inner cylinder 18. A plurality of second bolts 12 are threadedly connected to both sides of the outer surface of the outer cylinder 3. The first inner cylinder 13 is threadedly connected with the outer cylinder 3 through the second bolts 12. An outer tooth ring 9 is fixedly connected to the outer surface of one end of the outer cylinder 3. A motor 6 is fixedly connected to the top of the bottom plate 1. The output shaft of the motor 6 is fixedly connected with a gearbox 7. The output shaft of the gearbox 7 is fixedly connected with a driving gear 8. The driving gear 8 is engaged with the outer tooth ring 9. A filter screen 21 is fixedly connected inside the first inner cylinder 13. The filter holes of the filter screen 21 inside the first inner cylinder 13 close to the feed pipe 4 are larger than the filter holes of the filter screen 21 inside the first inner cylinder 13 close to the discharge pipe 5.
[0025] By setting the outer cylinder 3, when the device needs to work, start the motor 6, let the output shaft of the gearbox 7 drive the driving gear 8 to rotate, and then let the outer cylinder 3 rotate through the external gear ring 9 to start working. By setting the first inner cylinder 13, the second inner cylinder 15 and the third inner cylinder 18, during operation, pour the material from the feed pipe 4 into the first inner cylinder 13. The first inner cylinder 13 will rotate together with the outer cylinder 3, causing the material inside the first inner cylinder 13 connected to the feed pipe 4 to rotate and be continuously struck by the steel balls. When the material is crushed to a size that can pass through the filter screen 21 inside the first inner cylinder 13 connected to the feed pipe 4, it will enter the inside of the third inner cylinder 18 through the filter holes of the filter screen 21. When the outer cylinder 3 drives the second inner cylinder 15 to rotate, it will cause a plurality of tooth bars 17 to rotate, and thus cause the third inner cylinder 18 to rotate through the second saw teeth 19. The third inner cylinder 18 rotates in the opposite direction to the first inner cylinder 13 during rotation, causing the material in the third inner cylinder 18 to be subjected to a centrifugal force in the opposite direction, enabling the material to be crushed more comprehensively and quickly. When the material is crushed to a size that can pass through the filter screen 21 inside the first inner cylinder 13 connected to the discharge pipe 5, the material enters the first inner cylinder 13 connected to the discharge pipe 5 and continues to be subjected to a centrifugal force in another direction, causing the material to be ground into powder more quickly, and thus being transported to the outside through the communication port 14 and the discharge pipe 5. The advantage of this is that the material is subjected to reaction forces in different directions during the grinding process, enabling the material to be ground into powder faster, shortening the working time, and improving the working efficiency.
[0026] As Figure 1 and Figure 2 shown, the internal space of the first inner cylinder 13 near the feed pipe 4 is larger than the internal space of the first inner cylinder 13 near the discharge pipe 5. Limit rings 22 for restricting the tooth bars 17 are installed on the outer surfaces at both ends of the third inner cylinder 18. The limit rings 22 are threadedly connected to the third inner cylinder 18 through a plurality of third bolts 23. By setting different internal space sizes of the first inner cylinder 13, the first inner cylinder 13 near the feed pipe 4 can store more unground materials. By setting the limit rings 22, the tooth bars 17 are restricted between the second inner cylinder 15 and the third inner cylinder 18 and will not be thrown out of the second inner cylinder 15 due to the centrifugal force during rotation, effectively ensuring the rotation direction of the third inner cylinder 18.
[0027] The technical solution provided by the present utility model is as follows. When the equipment needs to work, the motor 6 is started. The output shaft of the gearbox 7 drives the driving gear 8 to rotate, and then the outer cylinder 3 is driven to rotate through the external gear ring 9 to start working. By setting the first inner cylinder 13, the second inner cylinder 15 and the third inner cylinder 18, during operation, the material is poured into the first inner cylinder 13 from the feed pipe 4. The first inner cylinder 13 will rotate together with the outer cylinder 3, causing the material inside the first inner cylinder 13 connected to the feed pipe 4 to rotate and be continuously struck by steel balls. When the material is crushed to a size that can pass through the filter screen 21 inside the first inner cylinder 13 connected to the feed pipe 4, it will enter the inside of the third inner cylinder 18 through the filter holes of the filter screen 21. When the outer cylinder 3 drives the second inner cylinder 15 to rotate, it will cause a plurality of toothed rods 17 to rotate, and thus the third inner cylinder 18 is driven to rotate through the second saw teeth 19. The third inner cylinder 18 rotates in the opposite direction to the first inner cylinder 13 during rotation, causing the material in the third inner cylinder 18 to be subjected to a centrifugal force in the opposite direction, enabling the material to be crushed more comprehensively and quickly. When the material is crushed to a size that can pass through the filter screen 21 inside the first inner cylinder 13 connected to the discharge pipe 5, the material enters the first inner cylinder 13 connected to the discharge pipe 5 and continues to be subjected to a centrifugal force in another direction, causing the material to be ground into powder more quickly, and thus being transported to the outside through the communication port 14 and the discharge pipe 5. The advantage of this is that the material is subjected to reaction forces in different directions during the grinding process, enabling the material to be ground into powder faster, shortening the working time, and improving the working efficiency.
[0028] By setting different inner space sizes of the first inner cylinder 13, the first inner cylinder 13 near the feed pipe 4 can store more unground materials. By setting the limiting ring 22, the toothed rods 17 are restricted between the second inner cylinder 15 and the third inner cylinder 18 and will not be thrown out of the second inner cylinder 15 due to the centrifugal force during rotation, effectively ensuring the rotation direction of the third inner cylinder 18.
[0029] The present utility model covers any substitutions, modifications, equivalent methods and solutions made within the essence and scope of the present utility model. To enable the public to have a thorough understanding of the present utility model, specific details are described in detail in the above preferred embodiments of the present utility model. However, those skilled in the art can fully understand the present utility model even without the description of these details. Additionally, to avoid unnecessary confusion to the essence of the present utility model, well-known methods, processes, procedures, components and circuits are not described in detail.
[0030] Those of ordinary skill in the art can understand that all or part of the steps in implementing the above-described embodiment methods can be completed by instructing relevant hardware through a program, and this program can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disc, etc.
[0031] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.
Claims
1. The internal structure of a ball mill for producing ultrafine powder of solid waste, characterized in that Including: A bottom plate (1), both sides of the top of the bottom plate (1) are fixedly connected with support seats (2), an outer cylinder (3) is arranged above the bottom plate (1), both ends of the outer cylinder (3) are threadedly connected with protective covers (10) through a plurality of first bolts (11), a feed pipe (4) and a discharge pipe (5) are respectively fixedly connected to the protective covers (10) at both ends of the outer cylinder (3), the feed pipe (4) and the discharge pipe (5) both penetrate through the support seats (2), a second inner cylinder (15) is fixedly connected to the inner wall of the middle of the outer cylinder (3), a first sawtooth (16) is arranged on the inner wall of the second inner cylinder (15), a third inner cylinder (18) is installed inside the second inner cylinder (15), sliding grooves (20) are opened at both ends of the third inner cylinder (18), a second sawtooth (19) is arranged on the outer surface of the third inner cylinder (18), a plurality of tooth rods (17) are arranged between the second inner cylinder (15) and the third inner cylinder (18), the tooth rods (17) are meshed with both the first sawtooth (16) and the second sawtooth (19), first inner cylinders (13) are installed at both ends of the third inner cylinder (18), one end of the first inner cylinder (13) close to the third inner cylinder (18) is sleeved with the third inner cylinder (18) through the sliding groove (20), a communication port (14) is opened at one end of the first inner cylinder (13) far from the third inner cylinder (18), the communication port (14) is communicated with both the feed pipe (4) and the discharge pipe (5), and steel balls are placed inside both the first inner cylinder (13) and the third inner cylinder (18).
2. The internal structure of the ball mill for producing ultrafine solid waste powder according to claim 1, characterized in that, A plurality of second bolts (12) are threadedly connected to both sides of the outer surface of the outer cylinder (3), and the first inner cylinder (13) is threadedly connected to the outer cylinder (3) through the second bolts (12).
3. The internal structure of the ball mill for producing ultrafine solid waste powder according to claim 2, characterized in that, An outer toothed ring (9) is fixedly connected to the outer surface of one end of the outer cylinder (3), a motor (6) is fixedly connected to the top of the bottom plate (1), an output shaft of the motor (6) is fixedly connected to a gearbox (7), an output shaft of the gearbox (7) is fixedly connected to a driving gear (8), and the driving gear (8) is meshed with the outer toothed ring (9).
4. The internal structure of the ball mill for producing ultra-fine solid waste powder according to claim 3, characterized in that, A filter screen (21) is fixedly connected to the inside of the first inner cylinder (13), and the filtering holes of the filter screen (21) inside the first inner cylinder (13) close to the feed pipe (4) are larger than the filtering holes of the filter screen (21) inside the first inner cylinder (13) close to the discharge pipe (5).
5. The internal structure of the ball mill for producing ultrafine solid waste powder according to claim 1, characterized in that, The inner space of the first inner cylinder (13) close to the feed pipe (4) is larger than the inner space of the first inner cylinder (13) close to the discharge pipe (5).
6. The internal structure of the ball mill for producing ultrafine solid waste powder according to claim 1, characterized in that, Limit rings (22) for restricting the tooth rods (17) are installed on the outer surfaces of both ends of the third inner cylinder (18), and the limit rings (22) are threadedly connected to the third inner cylinder (18) through a plurality of third bolts (23).