Cement production ball mill

By designing a vertical feed pipe and anti-clogging components in the ball mill for cement production, the problem of feeding, which is difficult to operate, has been solved, enabling smooth material feeding and efficient grinding, thereby improving production efficiency and ease of discharge.

CN224371572UActive Publication Date: 2026-06-19JIANGXI DEAN WANNIANQING CEMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI DEAN WANNIANQING CEMENT CO LTD
Filing Date
2025-06-20
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The feed inlet of existing ball mills used in cement production is usually placed horizontally, which requires operators to have certain skills and strength when feeding materials, especially for heavy materials, making the operation difficult.

Method used

A ball mill comprising a loading plate, a rotating assembly, a bearing block, an anti-clogging assembly, and a drive assembly was designed. By vertically placing the feed pipe, the material is pushed using threaded blades to prevent clogging. The rotating assembly and drive assembly enable stable rotation of the drum and tilt adjustment of the ball mill, ensuring smooth material feeding and discharging.

Benefits of technology

It enables continuous and uniform material feeding, avoids clogging, improves grinding efficiency and ease of discharge, reduces the difficulty of manual feeding, and enhances the smoothness of the production process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224371572U_ABST
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Abstract

This utility model relates to the technical field of cement production, and more particularly to a ball mill for cement production. The ball mill for cement production includes: a carrying plate, a rotating assembly, a bearing block, an anti-clogging assembly, a connecting block, and a driving assembly. Support plates are symmetrically fixedly connected to the top right side of the carrying plate. An adjustable carrying plate is rotatably connected between two of the support plates. Two sets of four support frames are symmetrically fixedly connected to the top right side of the adjustable carrying plate. A roller is rotatably connected inside the top of each support frame. A support block is installed on the top of the carrying plate near the left set of support frames. A roller is rotatably connected inside the support block, and a discharge pipe is fixedly connected to one end of the roller. This utility model avoids material blockage, reduces the difficulty of manual feeding, and eliminates the need for operators to laboriously and accurately feed material from the side, facilitating smooth powder discharge, achieving convenience and controllability in the discharge process, and improving the smoothness of the production process.
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Description

Technical Field

[0001] This utility model relates to the technical field of cement production, and in particular to a ball mill for cement production. Background Technology

[0002] Cement is a powdery hydraulic inorganic binder that forms a paste when mixed with water. It hardens in air or, even better, in water, and effectively binds materials such as sand and stone together, making it an indispensable basic material in construction. Ball mills are used in cement production because they utilize the impact and grinding action of the grinding media to grind cement raw materials such as limestone and clay into extremely fine powder. This significantly reduces the particle size of the raw materials, increases the specific surface area of ​​the material, and thus significantly improves the efficiency and quality of subsequent calcination reactions, laying the foundation for producing high-quality cement.

[0003] Most ball mills require the ball and raw material to be fed into the mill through the feed port before grinding. The mill is then started and rotated to allow the ball and raw material to come into contact, decompress, and grind. However, most ball mills have a horizontal feed port, which requires the operator to feed the material from the side of the mill. This requires the operator to have certain operating skills and strength to accurately feed the material into the feed port, especially for heavier materials, which makes the operation more difficult.

[0004] Therefore, it is necessary to provide a new type of ball mill for cement production to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a ball mill for cement production.

[0006] This utility model provides a ball mill for cement production, comprising: a carrying plate, a rotating assembly, a bearing block, an anti-clogging assembly, a connecting block, and a driving assembly. Support plates are symmetrically fixedly connected to the top right side of the carrying plate. An adjustable carrying plate is rotatably connected between two of the support plates. Two sets of four support frames are symmetrically fixedly connected to the top right side of the adjustable carrying plate. A roller is rotatably connected inside the top of each support frame. A support block is installed on the top of the carrying plate near the left-hand set of support frames. A roller is rotatably connected inside the support block, and a discharge pipe is fixedly connected to one end of the roller. A semi-circular groove is provided on the side of the roller near the discharge pipe. A rotating component is installed inside the support block. A bearing block is fixedly connected to the top left of the carrying plate. A feed pipe is fixedly connected to the top of the bearing block. The right side of the bearing block is fixedly connected to the left side of the roller. An anti-blocking component is installed inside the bearing block. Connecting blocks are symmetrically fixedly connected to the two sides of the carrying plate away from the support plate. An adjusting rod is rotatably connected to the bottom of the connecting block. A sliding block is rotatably connected to the bottom of the adjusting rod. A sliding groove is symmetrically opened on the top of the carrying plate. A drive component is installed inside the sliding groove.

[0007] Preferably, the rotating assembly includes a rack ring, the inside of which is rotatably connected to the outside of the roller, a gear is rotatably connected inside one corner of the support block, and a first motor is installed on one side of the support block.

[0008] Preferably, the anti-blocking component includes a threaded blade, one end of which is rotatably connected to one side of the inner wall of the bearing block, and a second motor is fixedly connected to the top left side of the bearing block.

[0009] Preferably, the drive assembly includes a threaded rod, the ends of which are rotatably connected to the inner walls of the sliding groove, a third motor is installed inside the top of the loading plate, and a rotating wheel is fixedly connected to the other end of the threaded rod. Pulleys are fitted around the two rotating wheels.

[0010] Preferably, the outer side of the roller is symmetrically provided with annular grooves, the outer side of the roller is in contact with the inner wall of the annular groove, and the outer side of the sliding block is slidably connected to the inner wall of the sliding groove.

[0011] Preferably, the gear and the rack ring are meshed, and the drive end of the first motor is fixedly connected to one side of the gear.

[0012] Preferably, the drive end of the second motor is fixedly connected to one end of the threaded blade.

[0013] Preferably, the drive end of the third motor is fixedly connected to one end of one of the threaded rods, and the side of the rotating wheel near the threaded rod is rotatably connected to the left side of the carrying plate.

[0014] Compared with related technologies, the ball mill for cement production provided by this utility model has the following beneficial effects:

[0015] This invention, by setting up anti-blocking components and vertically placing the feed pipe, and starting the second motor to drive the threaded blade to rotate, can continuously and evenly push cement raw materials from the feed pipe to the drum, avoiding feed blockage, reducing the difficulty of manual feeding, and eliminating the need for operators to laboriously and accurately feed materials from the side.

[0016] This invention uses a first motor in the rotating assembly to drive a gear that meshes with a rack ring, causing the drum to rotate around its own axis. The outer annular groove of the drum cooperates with the roller to ensure smooth rotation, allowing the internal grinding media to stably and fully impact and grind the raw materials, thereby improving grinding efficiency and quality.

[0017] This invention allows the ball mill to tilt by starting a third motor, making it easier for the ground powder to flow to the discharge pipe using gravity. The semi-circular groove also helps the powder to be discharged smoothly, making the discharge process convenient and controllable and improving the smoothness of the production process. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a ball mill for cement production provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows the structure of the carrier plate.

[0020] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0021] Figure 4 for Figure 1 The diagram shows the structure of the adjustable platform.

[0022] The following are the labels in the diagram: 1. Carrying plate; 2. Support plate; 3. Adjusting carrying plate; 4. Support frame; 5. Roller; 6. Support block; 7. Roller; 8. Circular groove; 9. Discharge pipe; 10. Semi-circular groove; 11. Rack ring; 12. Gear; 13. First motor; 14. Bearing block; 15. Feed pipe; 16. Threaded blade; 17. Second motor; 18. Connecting block; 19. Adjusting rod; 20. Sliding block; 21. Sliding groove; 22. Threaded rod; 23. Third motor; 24. Rotating wheel; 25. Belt pulley. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] Please see Figures 1 to 4 A ball mill for cement production includes: a carrying plate 1 providing a stable mounting platform; a support plate 2 symmetrically fixedly connected to the top right side of the carrying plate 1, the support plate 2 serving to support and position, enhancing the stability of the overall structure; an adjustable carrying plate 3 rotatably connected between the two support plates 2, the adjustable carrying plate 3 being able to rotate within a certain range, laying the foundation for the ball mill to achieve tilt adjustment function; two sets of support frames 4 symmetrically fixedly connected to the top right side of the adjustable carrying plate 3, totaling four, each support frame 4 having a roller 5 rotatably connected inside its top, the roller 5 being able to rotate flexibly, serving to support and assist rolling when the drum 7 is running, reducing frictional resistance.

[0026] A support block 6 is installed at the top of the support plate 1 near the left side of a set of support frames 4. A roller 7 is rotatably connected inside the support block 6. The roller 7 is the core component of the ball mill for grinding operations. Circular grooves 8 are symmetrically opened on its outside. The design of the circular grooves 8 is precisely matched with the rollers 5, so that the outside of the rollers 5 can make good contact with the inner wall of the circular grooves 8, ensuring the stability of the roller 7 when rotating. A discharge pipe 9 is fixedly connected to one end of the roller 7. The discharge pipe 9 is used to smoothly discharge the ground material from the ball mill. A semi-circular groove 10 is provided inside the roller 7 on the side near the discharge pipe 9. The semi-circular groove 10 can guide the ground material to flow more smoothly to the discharge pipe 9.

[0027] The rotating assembly is installed inside the support block 6. The rotating assembly is the key part that drives the rotation of the roller 7. The rotating assembly includes a rack ring 11, which surrounds the outside of the roller 7. The inside of the rack ring 11 is rotatably connected to the outside of the roller 7, which can effectively transmit power to the roller 7. A gear 12 is rotatably connected inside one corner of the support block 6. The gear 12 and the rack ring 11 are precisely meshed. The power conversion and transmission is realized through the transmission principle of the gear 12 and the rack. A first motor 13 is installed on one side of the support block 6. The first motor 13 serves as a power source. Its drive end is fixedly connected to one side of the gear 12, which can stably provide rotational power to the gear 12.

[0028] The support block 14 is fixedly connected to the top left side of the carrying plate 1. The top of the support block 14 is fixedly connected to the feed pipe 15, which is the inlet channel for materials to enter the ball mill. The support block 14 is equipped with a conveying pipe connected to the feed pipe 15 and the drum 7, which can smoothly guide the materials entering from the feed pipe 15 into the inside of the drum 7. The right side of the support block 14 is fixedly connected to the left side of the drum 7 to ensure the stability and smoothness of the material transmission path.

[0029] An anti-blocking component is installed inside the support block 14. The anti-blocking component can effectively prevent material from clogging during the feeding process. The anti-blocking component includes a threaded blade 16. The threaded blade 16 has a special pitch and blade shape design. One end of the threaded blade 16 is rotatably connected to one side of the inner wall of the support block 14. During rotation, it can push the material forward. A second motor 17 is fixedly connected to the top left side of the support block 14. The second motor 17 provides power for the rotation of the threaded blade 16. Its drive end is fixedly connected to one end of the threaded blade 16 to ensure the reliability of power transmission.

[0030] Connecting blocks 18 are symmetrically fixedly connected to the sides of the adjustable platform 3 away from the support plate 2. Connecting blocks 18 are important components connecting the adjustable platform 3 and the adjusting rod 19. The bottom end of the connecting block 18 is rotatably connected to the adjusting rod 19, which can rotate flexibly at the bottom end of the connecting block 18. The bottom end of the adjusting rod 19 is rotatably connected to a sliding block 20, which can move under the action of the adjusting rod 19. The top end of the platform 1 is symmetrically provided with sliding grooves 21. The outside of the sliding block 20 is slidably connected to the inner wall of the sliding groove 21 to ensure smooth and stable sliding process.

[0031] The drive assembly is installed inside the sliding groove 21. The drive assembly is the power structure for adjusting the tilt of the ball mill. The drive assembly includes a threaded rod 22, the ends of which are rotatably connected to the inner walls of the sliding groove 21, enabling stable rotation within the sliding groove 21. A third motor 23 is installed inside the top of the carrying plate 1, serving as the drive source. Its drive end is fixedly connected to one end of one of the threaded rods 22, providing power for the rotation of the threaded rod 22. A rotating wheel 24 is fixedly connected to the other end of the threaded rod 22. The side of the rotating wheel 24 closest to the threaded rod 22 is rotatably connected to the left side of the carrying plate 1, transmitting the rotation of the threaded rod 22. Belt pulleys 25 are fitted around the two rotating wheels 24, enabling synchronous rotation of the two threaded rods 22 through the transmission action of the belt pulleys 25, ensuring the stability of the ball mill tilt adjustment.

[0032] The working principle of the ball mill for cement production provided by this utility model is as follows:

[0033] During feeding, the second motor 17 is started first. Its drive end drives the threaded blade 16 inside the bearing block 14 to rotate, pouring the cement raw material from the feed pipe 15 into the bearing block 14. Under the push of the threaded blade 16, the raw material continuously and evenly enters the inside of the drum 7. The rotation of the threaded blade 16 can effectively prevent the raw material from getting blocked during the feeding process, ensuring smooth feeding. After the raw material enters the drum 7, the first motor 13 is turned on. The drive end of the first motor 13 drives the gear 12 to rotate. The gear 12 meshes with the rack ring 11, thereby causing the rack ring 11 to rotate, driving the drum 7 to rotate around its own axis. The annular groove 8 on the outside of the drum 7 cooperates with the roller 5 to ensure that the drum 7 rotates smoothly. During the rotation of the drum 7, the grinding media inside and the raw material move together. The grinding media continuously impacts and grinds the raw material, gradually grinding the raw material into fine powder.

[0034] When the raw material grinding is completed and discharge is required, the third motor 23 is started. The drive end of the third motor 23 drives the threaded rod 22 to rotate. The rotation of the threaded rod 22 causes the sliding block 20 that it cooperates with to slide in the sliding groove 21. The sliding block 20 is connected to the connecting block 18 through the adjusting rod 19. The rotation of the adjusting rod 19 causes the adjusting carrier plate 3 to rotate around the connection point with the support plate 2, thereby tilting the ball mill. After the ball mill is tilted, under the action of gravity, the ground powder is more likely to flow to the discharge pipe 9. The semi-circular groove 10 set in the drum 7 near the discharge pipe 9 helps the powder to smoothly enter the discharge pipe 9 and be discharged from the discharge pipe 9 to enter the subsequent processing steps.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A ball mill for cement production, characterized in that, include: A carrying plate (1) is symmetrically fixedly connected to the right side of the top of the carrying plate (1). An adjustable carrying plate (3) is rotatably connected between the two supporting plates (2). Two sets of support frames (4) are symmetrically fixedly connected to the right side of the top of the adjustable carrying plate (3), totaling four. A roller (5) is rotatably connected inside the top of each support frame (4). A support block (6) is installed at the top of the carrying plate (1) near the left set of support frames (4). A roller (7) is rotatably connected inside the support block (6). A discharge pipe (9) is fixedly connected to one end of the roller (7). A semi-circular groove (10) is provided on the side of the roller (7) near the discharge pipe (9). Rotating assembly, the rotating assembly is installed inside the support block (6); The top left side of the support block (14) is fixedly connected to the support plate (1), the top of the support block (14) is fixedly connected to the feed pipe (15), and the right side of the support block (14) is fixedly connected to the left side of the roller (7). Anti-blocking component, the anti-blocking component is installed inside the support block (14); Connecting block (18), the two sides of the adjustable load plate (3) away from the support plate (2) are symmetrically fixedly connected to the connecting block (18), the bottom end of the connecting block (18) is rotatably connected to the adjusting rod (19), the bottom end of the adjusting rod (19) is rotatably connected to the sliding block (20), and the top end of the load plate (1) is symmetrically provided with sliding grooves (21). The drive component is installed inside the sliding groove (21).

2. The ball mill for cement production according to claim 1, characterized in that, The rotating assembly includes a rack ring (11), the inside of which is rotatably connected to the outside of the roller (7), a gear (12) is rotatably connected to one corner of the support block (6), and a first motor (13) is installed on one side of the support block (6).

3. The ball mill for cement production according to claim 1, characterized in that, The anti-blocking component includes a threaded blade (16), one end of which is rotatably connected to one side of the inner wall of the bearing block (14), and a second motor (17) is fixedly connected to the top left side of the bearing block (14).

4. A ball mill for cement production according to claim 1, characterized in that, The drive assembly includes a threaded rod (22), the end of which is rotatably connected to the inner wall of the sliding groove (21), a third motor (23) is installed inside the top of the loading plate (1), and a rotating wheel (24) is fixedly connected to the other end of the threaded rod (22). The two rotating wheels (24) are fitted with pulleys (25).

5. A ball mill for cement production according to claim 1, characterized in that, The roller (7) has symmetrically opened annular grooves (8) on its outside. The outside of the roller (5) is in contact with the inner wall of the annular groove (8), and the outside of the sliding block (20) is slidably connected to the inner wall of the sliding groove (21).

6. A ball mill for cement production according to claim 2, characterized in that, The gear (12) and the rack ring (11) are meshed, and the drive end of the first motor (13) is fixedly connected to one side of the gear (12).

7. A ball mill for cement production according to claim 3, characterized in that, The drive end of the second motor (17) is fixedly connected to one end of the threaded blade (16).

8. A ball mill for cement production according to claim 4, characterized in that, The drive end of the third motor (23) is fixedly connected to one end of one of the threaded rods (22), and the side of the rotating wheel (24) near the threaded rod (22) is rotatably connected to the left side of the carrier plate (1).