Ball milling tank of ball mill

By designing a multi-layered grinding jar with threaded connections and pressure relief holes, the problems of high noise and cumbersome operation in small ball mills have been solved, achieving noise reduction and convenient operation, and improving grinding efficiency and safety.

CN224142390UActive Publication Date: 2026-04-21SHANDONG JIGANG LUNA NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG JIGANG LUNA NEW MATERIAL TECH CO LTD
Filing Date
2025-03-22
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing small ball mill containers are noisy and cumbersome to operate, and are inconvenient to seal and disassemble, which affects ball milling efficiency and safety.

Method used

Design a ball mill jar with a multi-layer structure, including an outer layer, a sound insulation layer, and a noise reduction layer. The design features threaded connections and pressure relief holes to facilitate sealing and disassembly, and utilizes polyurethane foam and sound insulation cotton materials to reduce noise.

Benefits of technology

It effectively reduces noise pollution during the ball milling process, improves operational convenience and safety, and ensures the stable operation of the ball mill jar.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of ball mills, in particular to a ball milling tank of a ball mill, which comprises a sound insulation cover, the upper end of the sound insulation cover is covered with a sound insulation cover, the ball milling tank is slidably sleeved in the sound insulation cover, the outer wall of the ball milling tank is adhered and fixed with the inner wall surface of the sound insulation cover through resin glue, and the upper end of the ball milling tank is covered with a cover plate. When materials need to be subjected to ball-milling machining through the ball-milling tank, the materials and milling balls are put into the ball-milling tank, then the cover plate covers the ball-milling tank to achieve sealing, then the sound insulation cover and the sound insulation cover are installed in a covering mode, at the moment, the threaded column and the built-in sleeve are arranged in a penetrating mode, and positioning butt joint of the sound insulation cover and the sound insulation cover can be achieved; the sound insulation cover and the sound insulation cover can be fixed through mutual threaded butt joint of the threaded cap and the threaded column, the threaded rod can be rotated through the handle, so that the threaded rod and the threaded sleeve mutually move in a threaded mode, and therefore the extrusion plate can extrude and fasten the cover plate and the ball milling tank.
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Description

Technical Field

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

[0002] Small ball mills are ball milling devices suitable for laboratory research and small-scale production. Compared with large industrial ball mills, small ball mills are characterized by their small size, ease of operation, and low energy consumption, and are therefore widely used in research institutions, university laboratories, and small and medium-sized enterprises.

[0003] The main components of a small ball mill include a motor, a transmission device, a grinding jar, grinding media (such as steel balls, ceramic balls, etc.), and a control system. Its working principle is similar to that of a large ball mill; the motor drives the grinding jar to rotate, causing the grinding media inside the jar to impact and rub against the material, thereby achieving crushing and mixing. For example, Chinese Patent Publication No. CN214974497U provides a planetary ball mill that solves the problem that the fixing sleeve used to fix the bottle is connected to the rotating table via its bottom center point, which easily causes the fixing sleeve to shake or rotate on the rotating table during rotation, affecting the grinding of the material inside the bottle. This mill includes a rotating table, with multiple bottles mounted on top of the rotating table. Bottle caps are fitted onto each bottle, and a C-shaped fixing sleeve is provided outside the bottle. The inner wall of the fixing sleeve abuts against the outer wall of the bottle, and a screw is threaded onto the fixing sleeve, with the bottom end of the screw abutting against the top surface of the bottle cap. This application improves the stability of the connection between the fixing sleeve and the rotating table, and enhances the grinding efficiency and quality of the material inside the bottle.

[0004] Currently, most small ball mill containers are mainly single-layer metal structures, which generate significant noise during ball milling. In addition, some ball mill containers that use sound insulation materials still present cumbersome operation issues in terms of sealing, fastening, and disassembly. These issues need to be addressed to improve the ease of operation and noise reduction of the ball mill container. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a ball mill jar.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a ball mill jar for a ball mill, including a soundproof cover, the upper end of which is covered with a soundproof cap, the ball mill jar is slidably fitted inside the soundproof cover, the outer side of the ball mill jar is bonded and fixed to the inner wall of the soundproof cover by resin adhesive, and the upper end of the ball mill jar is covered with a cover plate.

[0008] A threaded sleeve is provided through the center of the soundproof cover, and a threaded rod is provided through the inside of the threaded sleeve. The surface of the threaded rod and the inside of the threaded sleeve are threaded together. An extrusion plate is fixed to the lower end of the threaded rod. The lower end of the extrusion plate covers the upper end of the cover plate. Several handles are provided at the upper end of the threaded rod, and one end of the handle is welded to the outer ring wall of the threaded rod.

[0009] The surface of the soundproof cover has a pressure relief hole 1 that penetrates through it, and the surface of the cover plate has a pressure relief hole 2 that penetrates through it. The specifications of the pressure relief hole 1 and the pressure relief hole 2 are the same.

[0010] In detail, the lower end of the soundproof cover is provided with a column, the upper end of the column is fixed to the soundproof cover with screws, the lower end of the column is provided with a mounting plate, and the connection between the mounting plate and the column is fixed by welding. The mounting plate has a disc structure.

[0011] In detail, the surface of the mounting plate has a number of mounting holes, which are evenly distributed.

[0012] In detail, a connecting plate 1 is fixed on both sides of the soundproof cover, a threaded post is fixed on the upper end of the connecting plate 1, and a connecting plate 2 is fixed on both ends of the soundproof cover. An inner sleeve is provided through the surface of the connecting plate 2. The connection position between the inner sleeve and the connecting plate 2 is fixed by welding. The threaded post is slidably provided through the interior of the inner sleeve.

[0013] In detail, the upper end of the threaded column is threaded with a threaded cap, and the end face of the threaded cap is pressed tightly against the end face of the inner sleeve.

[0014] In detail, the soundproof cover is composed of an outer layer, a sound insulation layer, a noise reduction layer and an inner liner in sequence. The inner side of the outer layer is fixedly wrapped with a sound insulation layer, the inner side of the sound insulation layer is fixedly wrapped with a noise reduction layer, and the inner liner is fixedly wrapped with a noise reduction layer. The structure of the soundproof cover is the same as that of the soundproof cover.

[0015] In detail, both the outer layer and the inner liner are made of high-strength plastic material.

[0016] In detail, the sound insulation layer is made of polyurethane foam material.

[0017] In detail, the noise reduction layer is made of sound-absorbing cotton material.

[0018] The design scheme proposed in this utility model has the following beneficial effects in application:

[0019] 1. When materials need to be ball-milled, the materials and grinding balls are placed into the ball mill jar. Then, the cover plate is placed on the ball mill jar to seal it. The soundproof cover and soundproof enclosure are then installed. At this time, the threaded column and the inner sleeve are connected through to achieve the positioning and docking of the soundproof cover and soundproof enclosure. The soundproof cover and soundproof enclosure are fixed by the mutual threading of the threaded cap and the threaded column. The threaded rod can be rotated by the handle, so that the threaded rod and the threaded sleeve can move threadedly to each other. Thus, the extrusion plate can squeeze and fasten the cover plate and the ball mill jar. Through the cooperation of pressure relief hole one and pressure relief hole two, the safety accidents such as explosion caused by excessive pressure in the ball mill jar can be avoided during the ball milling process.

[0020] 2. During the continuous ball milling process, the soundproof cover and soundproof cover are composed of multiple layers, and the interior is equipped with a soundproof layer made of polyurethane foam and a noise reduction layer made of soundproof cotton. This can improve the sound insulation control of the ball milling process and avoid noise pollution to the surrounding workers. Attached Figure Description

[0021] Figure 1 This is a top view of the overall structure of this utility model;

[0022] Figure 2 This is a bottom view of the overall structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the composition of the soundproof cover of this utility model.

[0025] In the diagram: 1. Soundproof enclosure; 11. Soundproof cover; 12. Grinding jar; 13. Cover plate; 14. Threaded sleeve; 15. Threaded rod; 16. Extrusion plate; 17. Handle; 18. Pressure relief hole one; 19. Pressure relief hole two; 2. Column; 21. Mounting plate; 22. Mounting hole; 3. Threaded column; 31. Inner sleeve; 32. Threaded cap; 1001. Outer layer; 1002. Soundproof layer; 1003. Noise reduction layer; 1004. Inner liner. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figures 1-4A ball mill jar for a ball mill includes a soundproof cover 1, the upper end of the soundproof cover 1 is covered with a soundproof cover 11, the ball mill jar 12 is slidably sleeved inside the soundproof cover 1, the outer side of the ball mill jar 12 is bonded and fixed to the inner wall of the soundproof cover 1 by resin glue, and the upper end of the ball mill jar 12 is covered with a cover plate 13.

[0028] A threaded sleeve 14 is provided through the center of the soundproof cover 11, and a threaded rod 15 is provided through the inside of the threaded sleeve 14. The surface of the threaded rod 15 and the inside of the threaded sleeve 14 are threaded together. A pressing plate 16 is fixed to the lower end of the threaded rod 15. The lower end face of the pressing plate 16 covers the upper end of the cover plate 13. Several handles 17 are provided at the upper end of the threaded rod 15. One end of the handle 17 is welded to the outer ring wall of the threaded rod 15.

[0029] The surface of the soundproof cover 11 has a pressure relief hole 18 that penetrates through it, and the surface of the cover plate 13 has a pressure relief hole 19 that penetrates through it. The specifications of the pressure relief hole 18 and the pressure relief hole 19 are the same.

[0030] It should be further explained that a column 2 is provided at the lower end of the soundproof cover 1. The upper end of the column 2 is fixed to the soundproof cover 1 by screws. A mounting plate 21 is provided at the lower end of the column 2. The connection between the mounting plate 21 and the column 2 is fixed by welding. The mounting plate 21 is a disc structure. The mounting plate 21 can be easily connected to the shaft end of the rotating shaft structure or the turntable of any rotating equipment, which can ensure the stable rotation of the ball mill jar 12, thereby ensuring the normal operation of the ball mill.

[0031] It should be further noted that the surface of the mounting plate 21 has a number of mounting holes 22, which are evenly distributed and can be installed on the turntable by screws and bolts passing through the mounting holes 22.

[0032] It should be further explained that a connecting plate 1 is fixed on both sides of the soundproof cover 1, and a threaded post 3 is fixed on the upper end of the connecting plate 1. A connecting plate 2 is fixed on both ends of the soundproof cover 11. An inner sleeve 31 is provided through the surface of the connecting plate 2. The connection position between the inner sleeve 31 and the connecting plate 2 is fixed by welding. The threaded post 3 and the inner sleeve 31 are slidably connected through the inner sleeve 31, which can realize the quick positioning and docking of the soundproof cover 11 and the soundproof cover 1.

[0033] It should be further noted that the upper end of the threaded column 3 is threadedly connected to a threaded cap 32. The end face of the threaded cap 32 is pressed tightly against the end face of the inner sleeve 31, which can ensure convenient installation and disassembly of the soundproof cover 1 and the soundproof cover 11.

[0034] It should be further explained that the soundproof cover 1 is composed of an outer layer 1001, a sound insulation layer 1002, a noise reduction layer 1003, and an inner liner 1004. The inner side of the outer layer 1001 is fixedly wrapped with the sound insulation layer 1002, the inner side of the sound insulation layer 1002 is fixedly wrapped with the noise reduction layer 1003, and the inner side of the noise reduction layer 1003 is fixedly wrapped with the inner liner 1004. The structure of the soundproof cover 11 is the same as that of the soundproof cover 1.

[0035] It should be further noted that both the outer layer 1001 and the inner liner 1004 are made of high-strength plastic materials, which can ensure structural strength and at the same time ensure the stable installation of the sound insulation layer 1002 and the noise reduction layer 1003.

[0036] It should be further noted that the sound insulation layer 1002 is made of polyurethane foam. Polyurethane foam has high strength and rigidity, while being lightweight, providing good support and protection. Polyurethane foam also has good sound absorption properties, effectively absorbing and reducing noise and improving the quality of the indoor acoustic environment.

[0037] It should be further noted that the noise reduction layer 1003 is made of sound insulation cotton. The sound insulation cotton has a loose and porous internal structure, which can effectively absorb sound wave energy and reduce sound reflection and echo, thereby achieving the effect of noise reduction. Sound insulation cotton is usually made of fiber material, which is lightweight and easy to install and transport.

[0038] Working method: When it is necessary to process materials through the ball mill jar 12, the materials and grinding balls are put into the ball mill jar 12. Then, the cover plate 13 is placed on the ball mill jar 12 to achieve sealing. Then, the soundproof cover 11 and the soundproof cover 1 are installed. At this time, the threaded column 3 and the inner sleeve 31 are connected through, which can realize the positioning and docking of the soundproof cover 11 and the soundproof cover 1. The soundproof cover 11 and the soundproof cover 1 are fixed by the mutual thread docking of the threaded cap 32 and the threaded column 3. The threaded rod 15 can be rotated by the handle 17, so that the threaded rod 15 and the threaded sleeve 14 move threadedly to each other. Thus, the extrusion plate 16 can squeeze and fasten the cover plate 13 and the ball mill jar 12. Through the cooperation of the pressure relief hole 18 and the pressure relief hole 2 19, the safety accidents such as explosion caused by excessive pressure in the ball mill jar 12 can be avoided during the ball milling process.

[0039] During the continuous ball milling process in the ball mill jar 12, the sound insulation cover 1 and the sound insulation cover 11 are composed of a multi-layer structure, and the sound insulation layer 1002 made of polyurethane foam and the noise reduction layer 1003 made of sound insulation cotton are respectively provided inside. This can improve the sound insulation control of the ball mill jar 12, so as to avoid causing noise pollution to the surrounding workers.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A ball mill jar of a ball mill comprising a soundproof cover (1), characterized in that: The upper end of the soundproof cover (1) is covered with a soundproof cover (11), and a ball mill jar (12) is slidably sleeved inside the soundproof cover (1). The outer side of the ball mill jar (12) is bonded and fixed to the inner wall of the soundproof cover (1) by resin glue. The upper end of the ball mill jar (12) is covered with a cover plate (13). A threaded sleeve (14) is provided through the center of the soundproof cover (11). A threaded rod (15) is provided through the inside of the threaded sleeve (14). The surface of the threaded rod (15) is threadedly connected to the inside of the threaded sleeve (14). An extrusion plate (16) is fixed to the lower end of the threaded rod (15). The lower end face of the extrusion plate (16) covers the upper end of the cover plate (13). Several handles (17) are provided at the upper end of the threaded rod (15). One end of the handle (17) is welded to the outer ring wall of the threaded rod (15). The surface of the soundproof cover (11) is provided with a pressure relief hole 1 (18) that penetrates its interior, and the surface of the cover plate (13) is provided with a pressure relief hole 2 (19) that penetrates its interior. The specifications of the pressure relief hole 1 (18) and the pressure relief hole 2 (19) are the same.

2. A ball mill jar for a ball mill according to claim 1, characterized in that: The lower end of the soundproof cover (1) is provided with a column (2), the upper end of the column (2) is fixed to the soundproof cover (1) by screws, the lower end of the column (2) is provided with a mounting plate (21), the connection position of the mounting plate (21) and the column (2) is fixed by welding, and the mounting plate (21) is a disc structure.

3. A ball mill jar for a ball mill according to claim 2, characterised in that: The surface of the mounting plate (21) is provided with a number of mounting holes (22), which are evenly distributed.

4. A ball mill jar for a ball mill according to claim 1, characterized in that: The soundproof cover (1) is fixed with connecting plate 1 on both sides, and a threaded column (3) is fixed at the upper end of connecting plate 1. The soundproof cover (11) is fixed with connecting plate 2 at both ends. An inner sleeve (31) is provided through the surface of connecting plate 2. The connection position between the inner sleeve (31) and connecting plate 2 is fixed by welding. The threaded column (3) is slidably connected through the inner sleeve (31).

5. A ball mill jar for a ball mill according to claim 4, characterised in that: The upper end of the threaded column (3) is threadedly connected to a threaded cap (32), and the end face of the threaded cap (32) is pressed tightly against the end face of the inner sleeve (31).

6. A ball mill jar for a ball mill according to claim 1, characterized in that: The soundproof cover (1) is composed of an outer layer (1001), a sound insulation layer (1002), a noise reduction layer (1003), and an inner liner (1004) in sequence. The inner side of the outer layer (1001) is fixedly wrapped with the sound insulation layer (1002), the inner side of the sound insulation layer (1002) is fixedly wrapped with the noise reduction layer (1003), and the inner side of the noise reduction layer (1003) is fixedly wrapped with the inner liner (1004). The structure of the soundproof cover (11) is the same as that of the soundproof cover (1).

7. A ball mill jar for a ball mill according to claim 6, characterised in that: Both the outer layer (1001) and the inner liner (1004) are made of high-strength plastic material.

8. A ball mill jar of a ball mill according to claim 6, characterized by: The sound insulation layer (1002) is made of polyurethane foam material.

9. A ball mill jar of a ball mill according to claim 6, characterized by: The noise reduction layer (1003) is made of sound-absorbing cotton material.

Citation Information

Patent Citations

  • Planetary ball mill

    CN214974497U