Ball mill with self-cleaning function

By introducing a water pump and a circular filter screen into the ball mill, the problems of difficult cleaning and insufficient grinding in the ball mill are solved, achieving self-cleaning and efficient grinding, improving production efficiency and reducing energy consumption.

CN224208131UActive Publication Date: 2026-05-08INSTITUTE OF MATERIALS & INTELLIGENT MANUFACTURING JIANGXI ACADEMY OF SCIENCES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INSTITUTE OF MATERIALS & INTELLIGENT MANUFACTURING JIANGXI ACADEMY OF SCIENCES
Filing Date
2025-07-03
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing ball mills suffer from problems such as insufficient ball grinding, severe material leakage at the discharge port, and difficulty in cleaning, resulting in low production efficiency and safety hazards.

Method used

Design a ball mill with self-cleaning function. By installing a water pump, water pipe and valve on the outside of the cylinder, the water pump sends water into the cylinder for cleaning. A circular filter screen is installed inside the cylinder to prevent impurities from flowing back. At the same time, water can be injected through the valve during the grinding process to improve efficiency and control temperature.

Benefits of technology

It achieves the self-cleaning function of the ball mill, improves grinding efficiency, reduces energy consumption, and prevents impurities from flowing back through the circular filter screen, thereby enhancing the service life and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a ball mill with a self-cleaning function, which belongs to the technical field of ball mills and comprises a barrel, bearings are rotatably mounted on two sides of the barrel, a support is fixedly mounted on one side of each of the two bearings, and the support is fixedly mounted on the other side of each of the two bearings. A water pipe penetrating through the bearing to be communicated with the barrel is fixedly installed on one side of the support, a valve is arranged on the water pipe, one end of the water pipe is fixedly communicated with a water pump, and a driving structure is arranged on the outer surface of the barrel. A water source is fed into the barrel through the water pipe, so that the inner wall of the barrel and the steel balls are cleaned, and the circular filter screen is arranged in the barrel in the cleaning process, so that impurities in the cleaning process can be prevented from flowing back into the water pipe.
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Description

Technical Field

[0001] This utility model belongs to the field of ball mill technology, specifically relating to a ball mill with a self-cleaning function. Background Technology

[0002] Ball mills are key equipment for further pulverizing materials after they have been crushed. They are widely used in industries such as cement, silicate products, new building materials, refractory materials, fertilizers, ferrous and non-ferrous metal ore beneficiation, and glass and ceramics production for dry or wet grinding of various ores and other grindable materials. However, ball mills often suffer from problems such as insufficient grinding, significant material leakage from the discharge port, and large small-circulation volumes.

[0003] For example, in the Chinese utility model patent with announcement number CN201135905Y and the name "Ball Mill", the above-mentioned technology uses a frustum-shaped drum, so that the drum and the liner fixed on the inner wall of the drum are not parallel to the axis of the drum. In this way, the steel balls inside the drum are evenly distributed when rotating, and large pieces of material are not easy to roll to the discharge end. Although the above-mentioned technology can grind the material evenly, it cannot clean the ball mill after the even grinding is completed. It still requires manual cleaning with the help of tools and entering the ball mill, which increases the danger to personnel. Therefore, the above-mentioned ball mill cannot achieve the cleaning of the ball mill. So now there is a need for a ball mill with a self-cleaning function. Utility Model Content

[0004] The purpose of this invention is to provide a ball mill with a simple structure and reasonable design that has a self-cleaning function in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A ball mill with self-cleaning function includes a cylinder, bearings are rotatably mounted on both sides of the cylinder, a bracket is fixedly mounted on one side of the two bearings, a water pipe is fixedly mounted on one side of the bracket passing through the bearing and communicating with the cylinder, a valve is provided on the water pipe, a water pump is fixedly connected to one end of the water pipe, and a drive structure is provided on the outer surface of the cylinder.

[0007] As a further optimization of this utility model, a circular filter screen is fixedly installed on the inner wall of the left side of the cylinder, and a number of buffer balls are fixedly installed on the inner wall of the cylinder.

[0008] As a further optimization of this utility model, a discharge trough is provided at the bottom of the cylinder, and a filter plate is fixedly installed on the inner wall of the discharge trough, with filter holes provided on the surface of the filter plate.

[0009] As a further optimization of this utility model, a base is fixedly installed at the bottom of the two brackets, and the water pump is fixedly installed on the upper side of the base.

[0010] As a further optimization of this utility model, the drive structure includes a large gear fixedly installed on the outer surface of the cylinder, a servo motor fixedly installed on the other side of the bracket, and a drive gear meshing with the large gear fixedly connected to the output end of the servo motor.

[0011] As a further optimization of this utility model, the bottom of the discharge trough is provided with a door, a hinge is installed between the bottom of the door and the bottom of the cylinder, and a bolt that mates with the cylinder is provided at the bottom of the door.

[0012] The beneficial effects of this utility model are as follows: This utility model has a water pump, water pipe and valve installed on the outside of the cylinder. When the cylinder needs to be cleaned, the water pump is used to draw water into the inside of the cylinder through the water pipe, thereby cleaning the inner wall of the cylinder and the steel balls. During the cleaning process, a circular filter screen is installed inside to prevent impurities from flowing back into the water pipe. When the device needs to add water during the grinding process, water can also be injected into the cylinder through the valve, thereby improving grinding efficiency, reducing energy consumption and controlling the temperature during grinding. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall rear view structure of this utility model;

[0015] Figure 3 This is a cross-sectional structural schematic diagram of the present invention;

[0016] Figure 4 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 5 This is a utility model Figure 2 Enlarged view at point B in the middle;

[0018] Figure 6 This is a utility model Figure 3 Enlarged view of point C in the middle.

[0019] In the diagram: 1. Cylinder; 2. Bearing; 3. Support; 4. Valve; 5. Water pipe; 6. Water pump; 7. Base; 8. Circular filter screen; 9. Buffer ball; 10. Discharge chute; 11. Filter plate; 12. Large gear; 13. Servo motor; 14. Drive gear; 15. Door; 16. Hinge; 17. Filter hole; 18. Bolt. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Example 1

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, a ball mill with a self-cleaning function includes a cylinder 1. During use, steel balls (not shown) are present inside the cylinder 1, serving to crush, grind, and mix the materials. Bearings 2 are rotatably mounted on both sides of the cylinder 1. A bracket 3 is fixedly mounted on one side of each bearing 2. A water pipe 5, passing through the bearings 2 and communicating with the cylinder 1, is fixedly mounted on one side of the bracket 3. A valve 4 is installed on the water pipe 5. During use, both ends of the valve 4 are connected to the water pipe 5. One end of the water pipe 5 passes through the bearings 2 and is located inside the cylinder 1. The flow of water into the cylinder 1 can be controlled by opening and closing the valve 4. A water pump 6 is fixedly connected. During use, the suction end of the water pump 6 is connected to a water tank (not shown in the figure), which supplies water to the inside of the cylinder 1. A drive structure is provided on the outer surface of the cylinder 1. The drive structure includes a large gear 12 fixedly installed on the outer surface of the cylinder 1. A servo motor 13 is fixedly installed on the other side of the bracket 3. The output end of the servo motor 13 is fixedly connected to a drive gear 14 that meshes with the large gear 12. During use, the rotation of the servo motor 13 drives the drive gear 14 to rotate. Since the drive gear 14 and the large gear 12 are meshed, the meshing rotation can drive the cylinder 1 to rotate.

[0023] like Figure 3 , Figure 4As shown, a circular filter screen 8 is fixedly installed on the inner wall of the left side of the cylinder 1. During use, the circular filter screen 8 filters impurities in the cylinder 1, preventing impurities from flowing back into the water inlet pipe, thus improving the service life of the valve 4 and the water pump 6. Several buffer balls 9 are fixedly installed on the inner wall of the cylinder 1. During use, the buffer balls 9 are made of the same material as the steel balls. With the buffer balls 9 installed on the inner wall of the cylinder 1, when the steel balls repeatedly hit the buffer balls 9 inside the cylinder 1, the impact force causes the steel balls to move multiple times, which can grind and crush the materials multiple times. This increases the material grinding efficiency and enhances the crushing effect. The bottom of the cylinder 1 is provided with a discharge chute 10, and a filter plate 11 is fixedly installed on the inner wall of the discharge chute 10. The surface of the filter plate 11 is provided with filter holes 17. In use, the filter plate 11 is locked with bolts so that it can be installed and removed to facilitate the entry and exit of materials. By setting the discharge chute 10, the material is discharged and fed. The filter plate 11 can be used to filter the material during discharge. Steel balls and larger materials remain in the cylinder and can be ground and crushed during rotation.

[0024] like Figure 3 , Figure 5 and Figure 6 As shown, a door 15 is provided at the bottom of the discharge chute 10. A hinge 16 is installed between the bottom of the door 15 and the bottom of the cylinder 1. A bolt 18 that mates with the cylinder 1 is provided at the bottom of the door 15. A base 7 is fixedly installed at the bottom of the two supports 3. The water pump 6 is fixedly installed on the upper side of the base 7. In use, one end of the bolt 18 passes through the door 15 and is threadedly locked to the cylinder 1. Then, by rotating the hinge 16, the door 15 can be opened and closed. The base 7 provides support for the entire setup, strengthening the cylinder 1.

[0025] It should be noted that this ball mill with self-cleaning function operates by rotating the servo motor 13, which drives the drive gear 14 and the large gear 12 to rotate, causing the cylinder 1 to rotate so that the discharge chute 10 and the door 15 face upwards. Then, the bolts 18 are removed, and the door 15 is opened using the handle. The bolts on the filter plate 11 are loosened, and the filter plate 11 is removed. The required material is then fed into the cylinder 1. The filter plate 11 is then tightened with bolts, and the door 15 is lowered and tightened again with bolts 18. The servo motor 13 then drives the drive gear 14 to rotate, which in turn drives the large gear 12, causing the cylinder 1 to rotate. Under the influence of centrifugal force and friction, the steel balls and material are lifted to a certain height as the cylinder 1 rotates. Due to gravity, they fall, impacting and grinding the material inside the cylinder 1. When grinding is complete, the discharge chute 10 and the door 15 face upwards. With the feed trough 10 facing bottom, remove bolts 18 and open the chamber door 15. During the discharge process, the servo motor 13 drives the cylinder 1 to rotate back and forth. Then, the filter plate 11 filters out the finely ground material, while some larger materials remain inside the cylinder 1. The larger materials are then ground again by the steel balls until the material is ground and filtered. Then, a water pump 6, water pipe 5, and valve 4 are installed outside the cylinder 1 to clean the inner wall of the cylinder 1 and the steel balls. During the cleaning process, a circular filter screen 8 is installed inside to prevent impurities from flowing back into the water pipe. When the material in the ball mill needs to be wet ground, water is injected into the cylinder 1 by opening valve 4 when the cylinder 1 rotates, so that the material forms a slurry during the grinding process. This can improve grinding efficiency, reduce energy consumption, control temperature, and facilitate material transportation and subsequent processing.

[0026] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A ball mill with self-cleaning function, comprising a cylinder (1), characterized in that, Bearings (2) are rotatably installed on both sides of the cylinder (1). A bracket (3) is fixedly installed on one side of the two bearings (2). A water pipe (5) is fixedly installed on one side of the bracket (3) and passes through the bearing (2) and communicates with the cylinder (1). A valve (4) is provided on the water pipe (5). A water pump (6) is fixedly connected to one end of the water pipe (5). A drive structure is provided on the outer surface of the cylinder (1).

2. A ball mill with self-cleaning function according to claim 1, characterized in that: A circular filter screen (8) is fixedly installed on the inner wall of the left side of the cylinder (1), and several buffer balls (9) are fixedly installed on the inner wall of the cylinder (1).

3. A ball mill with self-cleaning function according to claim 1, characterized in that: The bottom of the cylinder (1) is provided with a discharge trough (10), and a filter plate (11) is fixedly installed on the inner wall of the discharge trough (10). The surface of the filter plate (11) is provided with filter holes (17).

4. A ball mill with self-cleaning function according to claim 1, characterized in that: The bottom of the two brackets (3) is fixedly mounted with a base (7), and the water pump (6) is fixedly mounted on the upper side of the base (7).

5. A ball mill with self-cleaning function according to claim 1, characterized in that: The drive structure includes a large gear (12) fixedly installed on the outer surface of the cylinder (1), and a servo motor (13) fixedly installed on the other side of the bracket (3). The output end of the servo motor (13) is fixedly connected to a drive gear (14) that meshes with the large gear (12).

6. A ball mill with self-cleaning function according to claim 3, characterized in that: The bottom of the discharge trough (10) is provided with a door (15), and a hinge (16) is installed between the bottom of the door (15) and the bottom of the cylinder (1). The bottom of the door (15) is provided with a bolt (18) that cooperates with the cylinder (1).

Citation Information

Patent Citations

  • Ball grinder

    CN201135905Y