Ball milling tank capable of measuring temperature and pressure
By adjusting the capacity of the ball mill jar with a double-headed screw and using a scraper air pump to assist in discharge, the problems of uneven grinding efficiency and slow discharge caused by the fixed capacity of the existing ball mill jar are solved, achieving flexible adjustment and rapid discharge.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING NANDA INSTR CO LTD
- Filing Date
- 2025-02-28
- Publication Date
- 2026-05-15
AI Technical Summary
Existing ball mill jars, when processing different amounts of material, have a fixed capacity, resulting in uneven grinding efficiency and slow discharge speed, which cannot meet the needs of experiments or production of different scales.
The tank capacity is adjusted by a double-headed screw driving an adjusting plate, and is equipped with a scraper and an air pump to assist in discharge, so as to achieve flexible adjustment of the tank capacity and rapid discharge.
It improves grinding efficiency and discharge speed, ensuring that materials are fully ground and discharged quickly, and adapts to the needs of different material quantities.
Smart Images

Figure CN224236988U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding equipment technology, and in particular to a ball mill jar capable of measuring temperature and pressure. Background Technology
[0002] Existing ball mill jars utilize the grinding media (such as grinding balls) inside the jar. As the jar rotates, the grinding balls rise to a certain height along with the inner wall of the jar, and then fall freely under the action of gravity, colliding at high speed with the material inside the jar. This collision can break up the material particles, gradually breaking large particles into smaller particles. Through continuous collisions, the particle size of the material gradually decreases, achieving the required degree of pulverization.
[0003] However, when using ordinary ball mill jars, the capacity is fixed. When dealing with grinding tasks with different amounts of material, either the space is too cramped when processing a large amount of material, resulting in insufficient grinding and affecting the grinding effect and efficiency; or the space inside the jar is relatively too large when processing a small amount of material, reducing the probability of collision between the grinding balls and the material, resulting in insufficient energy utilization and low grinding efficiency. This cannot meet the needs of experiments or production of different scales. In addition, there is no auxiliary discharge device. The material is discharged only by its own gravity and the tilting of the jar. For materials with strong adhesion or fine particles that are easy to agglomerate, the discharge speed is slow, which will affect the work efficiency. Utility Model Content
[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a temperature and pressure measuring ball mill jar. A double-headed screw can simultaneously drive two adjusting plates to adjust their relative positions. When the relative positions of the two adjusting plates are further apart, the capacity of the jar increases; when the relative positions of the two adjusting plates are closer, the capacity of the jar decreases. The jar capacity can be flexibly adjusted according to the actual amount of material being ground, ensuring sufficient space to hold a large amount of material. For grinding small amounts of material, the jar capacity can be reduced, making the collision and friction between the grinding balls and the material more concentrated and effective, thus improving grinding efficiency. During discharge, the double-headed screw drives the two adjusting plates closer to the center, and the scrapers on the sides scrape the material inside the jar towards the discharge port, quickly and effectively concentrating the material at the discharge port and shortening the discharge time. Simultaneously, an air pump inflates the casing, causing the air holes on the scrapers to spray air forward, further blowing off fine material particles adhering to the scrapers or the inner wall of the jar, maximizing the discharge of material from the jar and playing a role in assisting in cleaning the jar.
[0005] This utility model also provides a temperature and pressure measuring ball mill jar as described above, comprising: a base plate; a bracket fixedly connected to the upper surface of the base plate; a jar body rotatably connected to the inner surface of the bracket; a material inlet provided on the jar body; a sealing cap movably connected to the upper surface of the material inlet; multiple grinding balls placed on the inner surface of the jar body; a double-ended lead screw rotatably connected to the inner surface of the jar body; two adjusting plates slidably connected to the inner surface of the jar body; the two adjusting plates are threadedly connected to the double-ended lead screw; a limit rod fixedly connected to the inner surface of the jar body; the two adjusting plates are slidably connected to the limit rod; a scraper fixedly connected to the outer wall of the adjusting plate; the scraper slidably connected to the inner wall of the jar body; multiple air holes provided on the scraper; a filter screen fixedly connected to the inner wall of the air holes; a cover fixedly connected to the rear surface of the adjusting plate; the cover communicating with the air holes; an air pump fixedly connected to the rear surface of the cover; the output end of the air pump communicating with the cover; a thermometer penetrating through the upper surface of the jar body; and a pressure gauge penetrating through the upper surface of the jar body.
[0006] According to the present invention, a temperature and pressure measuring ball mill jar is provided, wherein a motor is fixedly connected to the side surface of the bracket, and the jar body is driven by the motor.
[0007] According to the present invention, a temperature and pressure measuring ball mill jar is provided, wherein a second motor is fixedly connected to the inner surface of the jar body, and the double-headed lead screw is driven by the second motor.
[0008] According to the present invention, a temperature and pressure measuring ball mill jar is provided on the sealing cover, and two such slots are symmetrically arranged.
[0009] According to the present invention, a temperature and pressure measuring ball mill jar is provided with a fixing block fixedly connected to the upper surface of the jar body, the fixing block is provided with a sliding groove, and the fixing block is provided with a screw hole.
[0010] According to the present invention, a temperature and pressure measuring ball mill jar is provided, wherein a pin is slidably connected to the inner surface of the slide groove, and the pin is movably connected to the slot.
[0011] According to the present invention, a temperature and pressure measuring ball mill jar is provided, wherein a screw is threadedly connected to the inner surface of the screw hole, and one end of the screw is rotatably connected to the rear surface of the pin.
[0012] According to the present invention, a temperature and pressure measuring ball mill jar is provided, wherein a receiving box is fixedly connected to the upper surface of the bottom plate, and the receiving box is located below the jar body.
[0013] Beneficial effects
[0014] 1. Compared with existing technologies, this temperature and pressure measuring ball mill jar can simultaneously drive two adjusting plates to adjust their relative positions through a double-headed screw. When the relative positions of the two adjusting plates are further apart, the capacity of the jar increases; when the relative positions of the two adjusting plates are closer, the capacity of the jar decreases. The capacity of the jar can be flexibly adjusted according to the actual amount of material to be ground, ensuring that there is enough space to hold more material. For grinding small amounts of material, the capacity of the jar can be reduced, making the collision and friction between the grinding balls and the material more concentrated and effective, thereby improving grinding efficiency.
[0015] 2. Compared with existing technologies, this temperature and pressure measuring ball mill jar, during discharge, uses a double-headed screw to drive two adjusting plates closer to the center. The scraper on its side can scrape the material inside the jar towards the discharge port, which can quickly and effectively concentrate the material to the discharge port, shortening the discharge time. At the same time as scraping, an air pump inflates the casing, causing the air holes on the scraper to spray air forward, which can further blow off the fine material particles attached to the scraper or the inner wall of the jar, so that the material is discharged from the jar to the maximum extent, which plays a role in assisting in cleaning the jar. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1 This is a front view structural diagram of the temperature and pressure measuring ball mill jar of this utility model;
[0018] Figure 2 This is a cross-sectional structural diagram of the temperature and pressure measuring ball mill jar of this utility model;
[0019] Figure 3 This is a partially enlarged structural view of the temperature and pressure measuring ball mill jar of this utility model;
[0020] Figure 4 This is a rear view of the temperature and pressure measuring ball mill jar of this utility model.
[0021] Legend:
[0022] 1. Sealing cap; 2. Thermometer; 3. Material inlet; 4. Motor 1; 5. Bracket; 6. Base plate; 7. Screw; 8. Screw hole; 9. Pressure gauge; 10. Tank body; 11. Receiving box; 12. Fixing block; 13. Pin; 14. Scraper; 15. Air vent; 16. Cover; 17. Air pump; 18. Limiting rod; 19. Adjusting plate; 20. Motor 2; 21. Double-ended lead screw; 22. Grinding ball; 23. Slot. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] Reference Figure 1-4 This utility model provides a temperature and pressure measuring ball mill jar, which includes: a base plate 6, a bracket 5 fixedly connected to the upper surface of the base plate 6, a jar body 10 rotatably connected to the inner surface of the bracket 5, a motor 4 fixedly connected to the side surface of the bracket 5, the jar body 10 being driven by the motor 4, a receiving box 11 fixedly connected to the upper surface of the base plate 6, the receiving box 11 being located below the jar body 10, and a plurality of grinding balls 22 placed on the inner surface of the jar body 10.
[0025] Specifically: After the motor 4 starts, its output shaft rotates, causing the tank 10 connected to it to rotate on the inner surface of the support 5. When the tank 10 rotates, the multiple grinding balls 22 placed inside will move irregularly in the tank under the action of centrifugal force and gravity, and continuously collide and rub against the material in the tank, thereby achieving grinding of the material.
[0026] The tank body 10 is provided with a material inlet 3. A sealing cover 1 is movably connected to the upper surface of the material inlet 3. A slot 23 is provided on the sealing cover 1. Two slots 23 are symmetrically arranged. A fixing block 12 is fixedly connected to the upper surface of the tank body 10. A sliding groove is provided on the fixing block 12. A screw hole 8 is provided on the fixing block 12. A pin 13 is slidably connected to the inner surface of the sliding groove. The pin 13 is movably connected to the slot 23. A screw rod 7 is threadedly connected to the inner surface of the screw hole 8. One end of the screw rod 7 is rotatably connected to the rear surface of the pin 13.
[0027] Specifically: The sealing cap 1 connects and seals with the tank body 10 through the engagement of the slot 23 and the pin 13. When it is necessary to seal the tank body 10, the sealing cap 1 is placed on the feed inlet 3, aligning the slot 23 with the pin 13 on the fixing block 12. Then, the screw 7 is rotated, causing the pin 13 to slide in the groove and insert into the slot 23, thereby fixing the sealing cap 1 to the tank body 10 and sealing the feed inlet 3 to prevent material from overflowing or external impurities from entering the tank during the grinding process.
[0028] A double-ended lead screw 21 is rotatably connected to the inner surface of the tank body 10. A motor 20 is fixedly connected to the inner surface of the tank body 10. The double-ended lead screw 21 is driven by the motor 20. Two adjusting plates 19 are slidably connected to the inner surface of the tank body 10. The two adjusting plates 19 are threadedly connected to the double-ended lead screw 21. A limit rod 18 is fixedly connected to the inner surface of the tank body 10. The two adjusting plates 19 are slidably connected to the limit rod 18.
[0029] Specifically: When motor 20 starts, it drives the double-ended lead screw 21 to rotate inside the tank 10. Since the two adjusting plates 19 are threadedly connected to the double-ended lead screw 21 and slidably connected to the limiting rod 18, the adjusting plates 19 can move linearly. As the double-ended lead screw 21 rotates, according to the direction of the thread and the structural characteristics of the double-ended lead screw, the two adjusting plates 19 will simultaneously move linearly relative to or away from the double-ended lead screw 21. When the two adjusting plates 19 move away from each other, the distance between them increases, thereby increasing the space inside the tank 10 that can hold materials, thus increasing the tank capacity; conversely, when the two adjusting plates 19 move relative to each other, the tank capacity decreases.
[0030] A scraper 14 is fixedly connected to the outer wall of the regulating plate 19. The scraper 14 is slidably connected to the inner wall of the tank 10. Multiple air holes 15 are provided on the scraper 14. A filter screen is fixedly connected to the inner wall of the air hole 15. A cover 16 is fixedly connected to the rear surface of the regulating plate 19. The cover 16 communicates with the air holes 15. An air pump 17 is fixedly connected to the rear surface of the cover 16. The output end of the air pump 17 communicates with the cover 16.
[0031] Specifically: During discharge, motor 20 reverses, driving the double-headed lead screw 21 to reverse, causing the two adjusting plates 19 to move closer to the center. As the adjusting plates 19 move, the scraper 14 fixedly connected to the outer wall of the adjusting plates 19 can scrape the material on the inner wall of the tank towards the discharge port 3, quickly and effectively concentrating the material at the discharge port for easy discharge. While the scraper 14 is scraping the material, the air pump 17 starts and inflates the cover 16. Since the cover 16 is connected to the air hole 15 on the scraper 14, the gas is sprayed forward through the air hole 15. The sprayed gas can further blow off the fine material particles attached to the scraper 14 or the inner wall of the tank 10, so that the material is discharged from the tank to the maximum extent, while also playing a role in cleaning the tank.
[0032] A thermometer 2 and a pressure gauge 9 are connected through the upper surface of the tank 10.
[0033] Specifically: Thermometer 2 is connected through the upper surface of tank 10, and its temperature sensing probe is located inside tank 10. When grinding or other operations are performed inside the tank, the temperature sensing probe of thermometer 2 can sense the temperature of the material and environment inside the tank in real time and display the temperature data through the thermometer's display device, thereby realizing real-time monitoring of the temperature inside the tank. Similarly, pressure gauge 9 is also connected through the upper surface of tank 10, and its pressure sensing component is connected to the internal space of tank 10. During the grinding process, a certain pressure will be generated inside the tank due to factors such as the grinding of materials and the presence of gas. The pressure sensing component of pressure gauge 9 can detect the pressure change inside the tank in real time and display the pressure data through the pressure gauge's display device so that operators can understand the pressure situation inside the tank. Both thermometer 2 and pressure gauge 9 are existing mature technologies, and their specific structures will not be described in detail in this document.
[0034] Working principle: During use, the material to be ground is placed into the tank 10 through the feed port 3. According to the properties of the material and grinding requirements, an appropriate amount of grinding balls 22 are added. The sealing cover 1 is then closed. The screw 7 is then rotated in the reverse direction, causing the pin 13 to insert into the slot 23 of the sealing cover 1, thus securing the sealing cover 1 and ensuring the airtightness of the tank 10. The motor 4 is then turned on, causing the tank 10 to rotate. The grinding balls 22 inside the tank 10 tumble and collide with the rotation of the tank 10, grinding the material. During the grinding process, the thermometer 2 and the pressure gauge 9 monitor the temperature and pressure inside the tank 10 in real time. The data is fed back so that the operator can make adjustments according to the actual situation. After grinding, the tank 10 is rotated by motor 4 so that the material inlet 3 faces down and is aligned with the receiving box 11. Then the sealing cover 1 is opened to discharge the material. Motor 20 is started to drive the two adjusting plates 19 to move closer to the center. The scraper 14 on the outer wall of the adjusting plate 19 moves accordingly to scrape the material in the tank 10 toward the material inlet 3. At the same time, the air pump 17 inflates the cover 16 with air. The gas is sprayed forward through the air hole 15 to further blow off the fine material particles attached to the scraper 14 or the inner wall of the tank 10, so that the material is discharged into the receiving box 11 through the material inlet 3 to the maximum extent.
[0035] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A ball mill jar capable of measuring temperature and pressure, characterized in that, include: A base plate (6) is fixedly connected to a bracket (5) on its upper surface. A tank (10) is rotatably connected to the inner surface of the bracket (5). A material inlet (3) is provided on the tank (10). A sealing cover (1) is movably connected to the upper surface of the material inlet (3). Multiple grinding balls (22) are placed on the inner surface of the tank (10). A double-ended lead screw (21) is rotatably connected to the inner surface of the tank (10). Two adjusting plates (19) are slidably connected to the inner surface of the tank (10). The two adjusting plates (19) are threadedly connected to the double-ended lead screw (21). A limiting rod (18) is fixedly connected to the inner surface of the tank (10). The two adjusting plates (19) are slidably connected to the limiting rod (18). A scraper (14) is fixedly connected to the outer wall of the adjusting plate (19). The scraper (14) is slidably connected to the inner wall of the tank (10). Multiple air holes (15) are provided on the scraper (14). A filter screen is fixedly connected to the inner wall of the air hole (15). A cover (16) is fixedly connected to the rear surface of the adjusting plate (19). The cover (16) communicates with the air hole (15). An air pump (17) is fixedly connected to the rear surface of the cover (16). The output end of the air pump (17) communicates with the cover (16). A thermometer (2) is connected through the upper surface of the tank (10). A pressure gauge (9) is connected through the upper surface of the tank (10).
2. The temperature and pressure measuring ball mill jar according to claim 1, characterized in that, The side surface of the bracket (5) is fixedly connected to a motor (4), and the tank (10) is driven by the motor (4).
3. The temperature and pressure measuring ball mill jar according to claim 1, characterized in that, The inner surface of the tank (10) is fixedly connected to a motor (20), and the double-headed lead screw (21) is driven by the motor (20).
4. The temperature and pressure measuring ball mill jar according to claim 1, characterized in that, The sealing cover (1) is provided with a slot (23), and two slots (23) are symmetrically arranged.
5. A temperature and pressure measuring ball mill jar according to claim 4, characterized in that, A fixing block (12) is fixedly connected to the upper surface of the tank (10). The fixing block (12) is provided with a sliding groove and a screw hole (8).
6. A temperature and pressure measuring ball mill jar according to claim 5, characterized in that, The inner surface of the slide is slidably connected with a pin (13), and the pin (13) is movably connected with the slot (23).
7. A temperature and pressure measuring ball mill jar according to claim 6, characterized in that, The inner surface of the screw hole (8) is threaded with a screw (7), and one end of the screw (7) is rotatably connected to the rear surface of the pin (13).
8. A temperature and pressure measuring ball mill jar according to claim 1, characterized in that, A receiving box (11) is fixedly connected to the upper surface of the base plate (6), and the receiving box (11) is located below the tank body (10).