Ball mill with detection of wear degree and detection system thereof

Abstract

The application discloses a ball mill with detection of wear degree and a detection system thereof, and relates to the technical field of wear detection. The ball mill comprises a ball mill box, a supporting structure is arranged outside the ball mill box, a screen is fixedly installed at the right side in the ball mill box, a mounting block is fixedly installed in the screen, three sampling grooves two are formed in the right side of the mounting block, an electromagnet, an electronic scale and a gas guide box are sequentially arranged in the sampling grooves two from left to right, and a gas supply assembly is arranged between the three gas guide boxes. The steel ball wear data collection work can be completed by measuring the steel balls which are randomly sampled from a plurality of steel balls with the same weight, the steel ball wear degree can be estimated without taking out the steel balls for measurement, the convenience of the steel ball detection is ensured, manual intervention is reduced, and the accuracy of the steel ball wear estimation is ensured.

Description

Technical Field

[0001] This invention relates to the field of wear detection technology, specifically a ball mill and its detection system capable of detecting the degree of wear. Background Technology

[0002] A ball mill is a device that uses the rotation of the cylinder to drive steel balls to generate impact and grinding action to crush materials, and finally achieves the separation of steel balls from materials. For example, the invention disclosed in CN105536939A provides a ball mill including a motor, a frame, a cylinder, and steel balls arranged in the cylinder. The cylinder is rotatably connected to the frame through rotating shafts arranged at both ends of the cylinder. The output shaft of the motor is connected to the rotating shaft at one end of the cylinder through a coupling. The cylinder has a feed inlet and a discharge outlet. The cylinder has three annular cavities evenly arranged along its length. A water scoop is provided on the outer wall of the cylinder.

[0003] Taking the aforementioned ball mill as an example, during the operation of the ball mill, the steel balls need to frequently collide with the materials and the inner wall of the equipment, which easily causes wear. However, the steel balls are confined inside the ball mill, and the ball mill cylinder is sealed or semi-sealed, so the internal operation cannot be directly observed visually. It is impossible to detect the degree of wear of the steel balls in a timely manner. It is necessary to stop the machine, open the chamber, and remove the steel balls in order to detect the steel balls. The process is time-consuming and labor-intensive, which seriously affects production efficiency and cost. Summary of the Invention

[0004] The purpose of this invention is to provide a ball mill and its detection system for detecting wear levels, so as to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a ball mill capable of detecting wear degree, comprising a ball mill box, a support structure provided on the outside of the ball mill box, a screen fixedly installed on the right side inside the ball mill box, an installation block fixedly installed inside the screen, three sampling slots II provided on the right side of the installation block, an electromagnet, an electronic scale and an air guide box arranged sequentially from left to right inside the sampling slots II, an air supply assembly provided between the three air guide boxes, a rotating plate rotatably connected to the left side of the installation block, three sampling slots I and three air guide slots provided on one side of the rotating plate, an L-shaped frame connected to one side of each of the three air guide slots, and a detection assembly installed on one of the L-shaped frames.

[0006] Preferably, the support structure includes a support frame and a drive motor. Two mounting bearings are fixedly installed inside the support frame, and both mounting bearings are fixedly installed on the outside of the ball mill box. Support shaft 1 and two support shaft 2 are fixedly connected to both sides of the support frame. A top material frame is provided at the bottom of each of the four support shaft 2. A grounding frame 2 is sleeved on the bottom of the outer side of the top material frame. A hydraulic cylinder 1 is fixedly connected inside the grounding frame 2. The piston end of the hydraulic cylinder 1 is fixedly connected to the top material frame. Grounding frames 1 are rotatably installed on the outer side of each of the two support shaft 1.

[0007] Preferably, each of the two grounding frames on the left side has two side grooves at its bottom, and a wheel is installed inside the side groove. The wheel is fixedly connected to the grounding frame. A connecting plate is fixedly connected between the two grounding frames on the left side. A horizontal plate is fixedly connected to each of the two grounding frames on the left side. A hydraulic cylinder is fixedly inserted through the grounding frame on the front side. The piston end of the hydraulic cylinder is fixedly connected to the adjacent horizontal plate. Two guide frames are inserted through each of the two grounding frames. One end of the guide frame is fixedly connected to the adjacent horizontal plate.

[0008] Preferably, one of the grounding frames is fixedly connected to a forward and reverse motor and a reducer on one side, the output end of the forward and reverse motor is fixedly connected to the input end of the reducer, and the output end of the reducer is fixedly connected to an adjacent support shaft. The other grounding frame is fixedly connected to a brake on one side, and the brake is fitted on the outside of the adjacent support shaft.

[0009] Preferably, the drive motor is fixedly installed on the right side of the support frame, and the reducer is fixedly installed on the right side of the support frame. The output end of the drive motor is fixedly connected to the input end of the reducer. The output end of the reducer is fixedly connected to a transmission shaft. The transmission shaft rotatably passes through the right side of the support frame. A gear is fixedly installed on the outer side of the transmission shaft. A discharge valve is fixedly connected to the right end of the ball mill box. The discharge valve passes through the support frame and is rotatably connected to the support frame. A gear is fixedly sleeved on the outer side of the discharge valve. The gear meshes with the gear. An external threaded component is threadedly connected to the left side of the ball mill box.

[0010] Preferably, the air guide box is fixedly connected to the mounting block, the electronic scale is fixedly installed on the left side of the air guide box, the electromagnet is fixedly installed on the left side of the electronic scale, and a curved groove is provided on the left side of the electromagnet.

[0011] Preferably, a second drive motor is fixedly connected inside the mounting block, and a second transmission shaft is fixedly connected to the output end of the second drive motor. The second transmission shaft is fixedly connected to the rotating plate, and a second brake is sleeved on the outside of the second transmission shaft. The second brake is fixedly installed inside the mounting block.

[0012] Preferably, one of the L-shaped frames has a storage slot on one side. The detection component includes a second partition, a pressure sensor, and an inflation component disposed inside the storage slot. The end of the second partition away from the air guide slot is fixedly connected to the L-shaped frame. The end of the second partition near the air guide slot is fixedly connected to a first partition. A three-way valve is disposed on the side of the first partition near the air guide slot. The pressure sensor, the three-way valve, and the first partition are all fixedly connected to the L-shaped frame. Both the normally closed and normally open ends of the three-way valve are fixedly connected to exhaust pipes. Both exhaust pipes pass through the first partition and connect to... A first separator is fixedly connected, and two exhaust pipes are respectively arranged on both sides of a second separator. A solenoid valve is fixedly connected to the second separator, and the solenoid valve is located inside the L-shaped frame. A third separator is fixedly connected between the second separator and the L-shaped frame. The inflatable expansion member is fixedly installed on the side of the second separator away from the pressure sensor. The inflatable expansion member has multiple connecting slots inside, and the connecting slots are opened on one side of the second separator. The L-shaped frame is fixedly connected to the rotating plate. Multiple exhaust slots are opened on the side of the L-shaped frame where the storage slot is located, and the exhaust slots are connected to the interior of the L-shaped frame.

[0013] Preferably, the bottom of the mounting block has a square groove, and the air supply component includes an air pump installed inside the square groove and an air inlet pipe fixedly connected to the air pump inlet end. Two filters are fixedly connected inside the air inlet pipe. The air pump is fixedly connected to the mounting block, and an air distribution box is fixedly connected to the air pump outlet end. The air distribution box is fixedly connected to three air guide bends, and the three air guide bends are fixedly connected to three air guide boxes respectively. Multiple air outlet circular grooves are opened on the left side of the air guide box.

[0014] The detection system includes a wireless communication module, a wear data calculation module, a wear analysis module, a report generation module, and a timing control module.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. When using this application, the steel ball wear data can be collected by randomly sampling from multiple steel balls of a fixed quantity and preset weight through the cooperation of structures such as mounting blocks, rotating plates, three air boxes, three electronic scales, and three electromagnets. The wear degree of the steel balls can be predicted and estimated without removing them from the equipment, ensuring the convenience of steel ball detection, reducing manual intervention, and ensuring the accuracy of steel ball wear prediction.

[0016] 2. When this application is used, the control drive motor drives the rotating plate and L-shaped frame to rotate multiple times. The inflatable expansion component rotates while pressing against the inner wall of the ball mill box. When a wear depression exceeding the preset depth appears inside the ball mill box, the inflatable expansion component expands and contracts under the influence of the inner wall of the ball mill box. The air pressure sensor detects the air pressure change, and the detection result of the air pressure sensor is fed back to the human-machine interface device to complete the collection of wear data of the inner wall of the ball mill box. It can quickly collect wear data of the inner wall of the ball mill box and ensure the comprehensiveness of the wear data collection inside the ball mill box. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the ball mill box of the present invention; Figure 3 This is a cross-sectional view of the grounding frame II of the present invention; Figure 4 This is a cross-sectional view of the ball mill box of the present invention; Figure 5 This is a schematic diagram of the structure of the sieve of the present invention; Figure 6 This is a cross-sectional view of the L-shaped frame of the present invention; Figure 7 for Figure 6 Enlarged view of the structure at point A; Figure 8 This is a partial structural schematic diagram of the L-shaped frame of the present invention; Figure 9 This is an enlarged view of the structure at point B of the present invention; Figure 10 This is a partial cross-sectional view of the inflatable expansion component of the present invention; Figure 11 This is a schematic diagram of the mounting block of the present invention; Figure 12 This is a cross-sectional view of the mounting block of the present invention; Figure 13 This is a schematic diagram of the connection structure between the air pump and the air delivery box of the present invention; Figure 14 This is a schematic diagram of the detection system of the present invention.

[0018] Labels in the diagram: 1. Support frame; 2. Grinding box; 3. Mounting bearing; 4. Grounding frame one; 5. Forward and reverse motors; 6. Reducer one; 7. Support shaft one; 8. Support shaft two; 9. Top material frame; 10. Hydraulic cylinder one; 11. Grounding frame two; 12. Side groove; 13. Wheel; 14. Connecting plate; 15. Hydraulic cylinder two; 16. Guide frame; 17. Brake one; 18. External threaded part; 19. Discharge valve; 20. Gear one; 21. Drive motor one; 22. Reducer two; 23. Transmission shaft one; 24. Gear two; 25. Screen; 26. Mounting block; 27. Rotating plate; 28. L-shaped frame; 29. ​​Discharge rack 30. Air tank; 31. Storage tank; 32. Air guide tank; 33. Divider 1; 34. Three-way valve; 35. Exhaust pipe; 36. Divider 2; 37. Solenoid valve; 38. Air pressure sensor; 39. Inflation expansion component; 40. Divider 3; 41. Sampling tank 1; 42. Transmission shaft 2; 43. Brake 2; 44. Drive motor 2; 45. Sampling tank 2; 46. Air guide box; 47. Exhaust pipe; 48. Electronic scale; 49. Electromagnet; 50. Curved groove; 51. Square groove; 52. Air distribution box; 53. Air guide bend; 54. Inlet pipe; 55. Filter screen; 56. Connecting groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example: Figures 1-14 As shown, the present invention provides a technical solution for a ball mill capable of detecting wear degree, including a ball mill box 2, a support structure on the outside of the ball mill box 2, a screen 25 fixedly installed on the right side inside the ball mill box 2, an installation block 26 fixedly installed inside the screen 25, three sampling slots 44 on the right side of the installation block 26, an electromagnet 48, an electronic scale 47 and an air guide box 45 arranged sequentially from left to right inside the sampling slots 44, an air supply component arranged between the three air guide boxes 45, a rotating plate 27 rotatably connected to the left side of the installation block 26, three sampling slots 40 and three air guide slots 31 on one side of the rotating plate 27, and an L-shaped frame 28 connected to one side of each of the three air guide slots 31, one of the L-shaped frames 28 being equipped with a detection component.

[0021] Specifically, such as Figure 1 , Figure 2 and Figure 3As shown, two mounting bearings 3 are fixedly installed inside the support frame 1 in the support structure. The outer ring of the mounting bearing 3 is fixedly connected to the support frame 1, and the inner rings of the two mounting bearings 3 are fixedly installed on the outside of the ball mill box 2. The ball mill box 2 can rotate inside the support frame 1.

[0022] Support shaft 1 and two support shafts 2 are fixedly connected to both sides of support frame 1. Grounding frame 4 is rotatably installed on the outside of the two support shafts 1. Grounding frame 4 is fixed to the ground, so the vertical position of support frame 1 is fixed. Top material frame 9 is provided at the bottom of the four support shafts 2. Grounding frame 2 11 is sleeved on the bottom outside of the top material frame 9. The piston end of hydraulic cylinder 10 fixedly connected inside the grounding frame 2 11 is fixedly connected to the top material frame 9, so the top material frame 9 can move up and down relative to the grounding frame 2 11.

[0023] The two grounding brackets 11 on the right are fixed to the ground. The bottom of the two grounding brackets 11 on the left is provided with two side grooves 12. The wheels 13 inside the side grooves 12 are fixedly connected to the grounding brackets 11. The two grounding brackets 11 on the left can move under the support of the wheels 13. A connecting plate 14 is fixedly connected between the two grounding brackets 11 on the left. The two grounding brackets 11 on the left move synchronously.

[0024] Both grounding frames 21 on the left are fixedly connected to horizontal plates. A hydraulic cylinder 215 is fixedly installed on the grounding frame 14 on the front side. The piston end of the hydraulic cylinder 215 is fixedly connected to the adjacent horizontal plate. Two guide frames 16 are installed on both grounding frames 14. One end of the guide frame 16 is fixedly connected to the adjacent horizontal plate. Under the action of the four guide frames 16, the two grounding frames 21 on the left can only move left and right. By controlling the hydraulic cylinder 215 to work, the two grounding frames 21 on the left can move left and right, and the two top material frames 9 on the left can move left and right.

[0025] One of the grounding frames 4 is fixedly connected to a forward and reverse motor 5 and a reducer 6 on one side. The output end of the forward and reverse motor 5 is fixedly connected to the input end of the reducer 6, and the output end of the reducer 6 is fixedly connected to the adjacent support shaft 7. The forward and reverse motor 5 is controlled to output rotational force. The reducer 6 changes the speed and direction of the rotational force and then acts on the support shaft 7. The support shaft 7 is fixedly connected to the support frame 1, so it drives the support frame 1 to rotate. The support frame 1 drives the ball mill box 2 to rotate, adjusting the pitch angle of the support frame 1. The other grounding frame 4 is fixedly connected to a brake 17 on one side. The brake 17 is sleeved on the outside of the adjacent support shaft 7. The brake 17 is controlled to work to brake the support shaft 7. The support frame 1 is braked, the ball mill box 2 is braked, and the pitch angle of the ball mill box 2 cannot be changed.

[0026] A reducer 22 is fixedly installed on the right side of the support frame 1. The output end of the drive motor 21 fixedly installed on the right side of the support frame 1 is fixedly connected to the input end of the reducer 22. The transmission shaft 23 fixedly connected to the output end of the reducer 22 rotatably passes through the right side of the support frame 1, and a gear 24 is fixedly installed on the outside of the transmission shaft 23 to control the operation of the drive motor 21. The rotational force output by the drive motor 21 drives the transmission shaft 23 to rotate under the action of the reducer 22 and the gear 24. The discharge valve 19 fixedly connected to the right end of the ball mill box 2 passes through the support frame 1 and is rotatably connected to the support frame 1. The gear 20 fixedly sleeved on the outside of the discharge valve 19 meshes with the gear 24. The transmission shaft 23 applies the rotational force to the gear 20. The discharge valve 19 drives the ball mill box 2 to rotate inside the support frame 1.

[0027] The ball mill box 2 has an external threaded part 18 connected to the left side. By operating the external threaded part 18 to separate it from the ball mill box 2, the material to be ground can be poured into the ball mill box 2.

[0028] Specifically, such as Figure 4 , Figure 5 , Figure 10 , Figure 11 and Figure 12 Inside the ball mill box 2, a screen 25 is fixedly installed and connected to a mounting block 26. Three sampling slots 44 are provided on the right side of the mounting block 26. Inside the sampling slots 44, from left to right, there are an electromagnet 48, an electronic scale 47, and a gas guide box 45. The gas guide box 45 is fixedly installed on the right side of the inner wall of the mounting block 26, the electronic scale 47 is fixedly installed on the left side of the gas guide box 45, and the electromagnet 48 is fixedly installed on the left side of the electronic scale 47. A curved groove 49 is provided on the left side of the electromagnet 48. The outer diameter of the electronic scale 47 and the electromagnet 48 is slightly smaller than the inner diameter of the sampling slots 44.

[0029] The output end of the drive motor 43, which is fixedly connected inside the mounting block 26, is fixedly connected to the transmission shaft 41. The transmission shaft 41 is fixedly connected to the rotating plate 27, which is rotatably connected to the left side of the mounting block 26. The brake 42, which is sleeved on the outside of the transmission shaft 41, is fixedly installed inside the mounting block 26 to control the operation of the drive motor 43. The drive motor 43 drives the rotating plate 27 to rotate through the transmission shaft 41.

[0030] Specifically, such as Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 Three air guide slots 31 are provided on the left side of the rotating plate 27. The L-shaped frame 28 connected to the air guide slots 31 is fixedly connected to the rotating plate 27 and the two move synchronously.

[0031] One of the L-shaped frames 28 has a storage slot 30 on one side. The air pressure sensor 37 and the inflation expansion member 38 in the detection assembly are both located inside the storage slot 30. The end of the second separator 35 furthest from the air guide channel 31 is fixedly connected to the L-shaped frame 28. The end of the second separator 35 closest to the air guide channel 31 is fixedly connected to a first separator 32, which is fixedly installed inside the L-shaped frame 28. A third separator 39 is fixedly connected between the second separator 35 and the L-shaped frame 28. Multiple connecting slots 56 inside the inflation expansion member 38 are all located on one side of the second separator 35. The second separator 35, the first separator 32, the third separator 39, and the multiple connecting slots 56 function as follows: Below, the L-shaped frame 28 with the storage slot 30 has an air guide channel and a diversion channel, wherein the air guide channel is connected to the interior of the inflation expansion member 38; the L-shaped frame 28 with the storage slot 30 has multiple exhaust slots 29 on the side that abuts against the screen 25, the exhaust slots 29 are connected to the interior of the L-shaped frame 28, and the diversion channel is connected to the multiple exhaust slots 29; the air pressure sensor 37 installed inside the storage slot 30 is fixedly connected to the L-shaped frame 28, and the air pressure sensor 37 detects the air pressure inside the air guide channel; the solenoid valve 36 fixedly connected to the separator 35 is fixedly installed inside the L-shaped frame 28, and after the solenoid valve 36 is opened, the air guide channel and the diversion channel are connected.

[0032] A three-way valve 33 is provided on the side of the partition 32 near the air guide groove 31. Both the normally closed and normally open ends of the three-way valve 33 are fixedly connected to exhaust pipes 34. Both exhaust pipes 34 pass through the partition 32 and are fixedly connected to the partition 32. The two exhaust pipes 34 are respectively located on both sides of the partition 35. The exhaust pipe 34 installed on the normally closed end of the three-way valve 33 is connected to the air guide channel, and the exhaust pipe 34 connected to the normally open end of the three-way valve 33 is connected to the diversion channel.

[0033] Specifically, such as Figure 6 , Figure 12 and Figure 13 As shown, a square groove 50 is provided at the bottom of the mounting block 26. The air pump 51 in the air supply assembly is set in the square groove 50 and fixedly connected to the mounting block 26. Two filters 55 are fixedly connected inside the air inlet pipe 54 fixedly connected to the air inlet end of the air pump 51. The airflow entering the air pump 51 through the air inlet pipe 54 is filtered and purified by the two filters 55. A diffuser box 52 is fixedly connected to the air outlet end of the air pump 51. Three air guide bends 53 are fixedly connected to the diffuser box 52. The three air guide bends 53 are fixedly connected to three air guide boxes 45 respectively. The air pump 51 supplies air to the three air guide boxes 45 through the diffuser box 52 and the three air guide bends 53. Multiple air outlet circular grooves 46 opened on the left side of the air guide box 45 apply the airflow to the sampling slot 2 44.

[0034] The ball mill is composed of a ball mill box 2, a support structure, a screen 25, a mounting block 26, three sampling slots 44, three air guide boxes 45, an air supply component, a rotating plate 27, three sampling slots 40, three air guide slots 31, an L-shaped frame 28, and a detection component. The connection of the ball mill to a human-machine interface device to control its operation is an existing technology and will not be described in detail here.

[0035] The application methods for ball mills are as follows: Example 1: The human-machine interface device controls the forward and reverse motor 5 to rotate forward, causing the support frame 1 to rotate clockwise. One end of the threaded part 18 installed on the ball mill box 2 moves upward. After the ball mill box 2 rotates to a preset angle between 45° and 80°, the forward and reverse motor 5 stops working. During this operation, the hydraulic cylinder 15 drives the two grounding frames 11 to move to the right. The hydraulic cylinder 10 in the two grounding frames 11 on the left pushes the top material frame 9 upward, so that the two top material frames 9 on the left always abut against the two support shafts 8 on the left, distributing the force on the support shaft 7. At this time, the two hydraulic cylinders 10 inside the two grounding frames 11 on the right retract, and the two top material frames 9 on the right move downward. The movement of the two support shafts 8 on the right is not affected. After the angle of the ball mill box 2 is adjusted, the external threaded part 18 is disengaged from the ball mill box 2, and raw materials are transported into the ball mill box 2.

[0036] After the raw materials are added, the human-machine interface controls the support structure to restore the ball mill box 2 to a horizontal position. Then, it controls the drive motor 21 to work. Drive motor 21 drives the ball mill box 2 to rotate under the action of reducer 22, gear 24, transmission shaft 23, gear 20 and discharge valve 19. During the rotation of the ball mill box 2, multiple steel balls inside grind the raw materials. The setting of three L-shaped frames 28 disrupts the movement trajectory of the steel balls and raw materials, increasing the grinding effect.

[0037] The screen 25 is designed to prevent raw materials larger than the preset particle size from moving towards the discharge valve 19. The screen 25 is perpendicular to the horizontal plane and roughly parallel to the trajectory of the steel balls being thrown up by the rotation of the ball mill 2. The screen 25 limits the movement of the steel balls while minimizing impact. When the grinding time of the raw material inside the ball mill 2 is reached, the control support structure is activated, causing the ball mill 2 to stand upright. After the discharge valve 19 is at the bottom and perpendicular to the horizontal plane, the control control of the discharge valve 19 opens, discharging the ground raw material inside the ball mill 2. During this process, the ball mill 2 is controlled to rotate at a low speed by the support structure. Since the discharge valve 19 and the ball mill 2 are concentric, the discharge valve 19 rotates without changing its relative position. Without affecting the discharge position of the discharge valve 19, the rotation of the ball mill 2 helps to increase the discharge speed of the internal raw material.

[0038] Example 2: After the ball mill has been used for a period of time, the ball mill box 2 is raised by controlling the support structure so that the discharge valve 19 is at the bottom. Then, the external threaded part 18 of the ball mill box 2 is removed, water is poured into the support frame 1, and the ball mill box 2 is rotated to clean the inside of the ball mill box 2. After the discharge valve 19 is opened to empty the inside of the ball mill box 2, the cleaning work of the inside of the ball mill box 2 is completed. After cleaning the inside of the ball mill box 2 multiple times, the ball mill box 2 is restored to a horizontal state. Then, wait for a period of time or send hot air into the ball mill box 2 to make the inside of the ball mill box 2 completely dry.

[0039] After the inside of the ball mill box 2 is completely dried, the control drive motor 43 drives the transmission shaft 41 and the rotating plate 27 to rotate 120°, so that the three sampling slots 40 and the three sampling slots 44 are aligned one by one. At this time, the ball mill box 2 and the screen 25 are rotated by the support structure. The steel balls piled on the top of the screen 25 in the vertical state of the ball mill box 2 move to ensure that steel balls enter the three sampling slots 44. The inner diameter of the sampling slot 44 is slightly larger than the outer diameter of the steel balls. Therefore, only one steel ball enters the sampling slot 44 and the steel ball is partially embedded in the curved groove 49. After the ball mill box 2 stops rotating, the electromagnet 48 works to attract and fix the iron-containing steel ball partially embedded in the curved groove 49 by magnetic force, thus completing the capture of the steel ball to be tested.

[0040] Subsequently, the support structure stops working, restoring the ball mill box 2 to a horizontal state. At this time, the steel balls not fixed by the electromagnet 48 move away from the screen 25. Then, the second drive motor 43 is controlled to work again, driving the rotating plate 27 to rotate 120°, so that the sampling slot 44 is sealed by the rotating plate 27. Then, the ball mill box 2 is controlled to rotate vertically by the support structure. Then, the electromagnet 48 is controlled to stop working. Under the action of the curved groove 49, the weight of the steel ball is completely transferred to the electromagnet 48. The weight of the steel ball and the electromagnet 48 is transferred to the electronic scale 47. The electronic scale 47 detects the weight of the steel ball and measures the weight of the three steel balls. Then, the second drive motor 43 is controlled to work, driving the rotating plate 27 to rotate 120°, so that the sampling slot 44 is unsealed. Then, the support structure is controlled to work again, restoring the ball mill box 2 to a horizontal state. Since the electromagnet 48 is stopped working at this time, the steel balls inside the sampling slot 44 roll out, completing one steel ball sampling and measurement operation.

[0041] After completing multiple steel ball sampling and measurement operations using the above method, steel ball wear judgment data is obtained. Through the cooperation of structures such as mounting block 26, rotating plate 27, three air guide boxes 45, three electronic scales 47, and three electromagnets 48, steel ball wear data can be collected by randomly sampling from multiple steel balls of a fixed quantity and preset weight. The wear degree of steel balls can be predicted and estimated without removing them from the machine, ensuring the convenience of steel ball detection, reducing manual intervention, and ensuring the accuracy of steel ball wear prediction.

[0042] Example 3: During the steel ball sampling and measurement process, the air pump 51 is controlled to work. The air pump 51 supplies air to the three air guide boxes 45 through three air guide bends 53. Multiple air outlet grooves 46 are distributed in a ring on the outside of the air guide boxes 45. When the steel ball sampling and measurement process reaches the point where the electromagnet 48 stops working, the air pump 51 is controlled to work for a period of time before the electronic scale 47 is controlled to work. Under the action of the air guide boxes 45 and the multiple air outlet grooves 46, an annular airflow channel is ejected. The airflow channel pushes the steel ball on top of the electromagnet 48, ensuring that the steel ball sits inside the curved groove 49, avoiding contact between the steel ball and the mounting block 26, which would affect the measurement accuracy.

[0043] Example 4: After the steel ball wear prediction is completed, the support structure is controlled to operate, and the grinding box 2 rotates. When the end of the grinding box 2 with the external threaded part 18 installed tilts downwards by 30°, the grinding box 2 is limited. Then, the drive motor 43 is controlled to operate, causing the rotating plate 27 to rotate so that the air guide groove 31 is aligned with the sampling groove 44. Then, the air pump 51 is controlled to operate, sending air into the air guide box 45. At this time, the airflow enters the L-shaped frame 28 through the air guide groove 31. The normally closed end of the three-way valve 33 is opened, filling the air guide channel with gas. The air pressure inside the inflation expansion member 38 increases, and the inflation expansion member 38 expands and presses against the inner wall of the grinding box 2. The air pressure sensor 37 detects the air pressure value inside the air guide channel and feeds it back to the human-machine interface device. When the pressure sensor 37 returns a preset value, the normally closed end of the three-way valve 33 closes, stabilizing the pressure inside the air passage. Subsequently, the drive motor 43 drives the rotating plate 27 and the L-shaped frame 28 to rotate multiple times. The inflation expansion component 38 rotates while pressing against the inner wall of the ball mill box 2. When a wear depression exceeding a preset depth appears inside the ball mill box 2, the inflation expansion component 38 expands and contracts under the influence of the inner wall of the ball mill box 2. The pressure sensor 37 detects the pressure change and feeds the detection result back to the human-machine interface device, completing the collection of wear data on the inner wall of the ball mill box 2. This allows for rapid collection of wear data on the inner wall of the ball mill box 2, ensuring the comprehensiveness of the wear data collection.

[0044] After the drive motor 43 has been working for several weeks, it stops working, the solenoid valve 36 opens, and the air passage is depressurized.

[0045] Example 5: The human-computer interaction device is equipped with a detection system, which includes a wireless communication module, a wear data calculation module, a wear analysis module, a report generation module, and a timing control module.

[0046] The wireless communication module is connected to the wireless communicators on devices such as reducer 16, brake 17, reducer 22, three-way valve 33, solenoid valve 36, air pressure sensor 37, brake 22, drive motor 23, electronic scale 47, electromagnet 48, and air pump 51 to control the operation of the ball mill. The weight data of the steel ball measured by the electronic scale 47 and the air pressure value measured by the air pressure sensor 37 are both transmitted to the wear data calculation module by the wireless communication module. The wear data calculation module calculates the weight change data of a single steel ball and calculates the wear and indentation parameters of the inner wall of the ball mill box 2. The weight change data of a single steel ball and the wear and indentation parameters of the inner wall of the ball mill box 2 calculated by the wear data calculation module are transmitted to the wear analysis module. The wear analysis module calculates the estimated overall steel ball wear ratio based on the weight change data of multiple steel balls involved in the measurement and the expected weight of multiple steel balls. Based on the wear and indentation parameters of the inner wall of the ball mill box 2, it calculates the estimated structural damage ratio of the inner wall of the ball mill box 2. When the overall steel ball wear ratio is greater than 5% or the damage ratio of the inner wall structure of the ball mill box 2 is greater than 20%, the report generation module of the wear analysis module generates corresponding alarm information and sends the alarm information to the staff through the wireless communication module, thus completing the ball mill safety detection and early warning work.

[0047] The timing control module activates the pre-stored CNC program inside the human-machine interface device at regular intervals. The CNC program controls the ball mill to complete the work of predicting the wear of steel balls and collecting wear data of the inner wall of the ball mill box 2.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A ball mill capable of detecting wear degree, comprising a ball mill box (2), characterized in that: The ball mill box (2) is provided with a support structure on the outside. A screen (25) is fixedly installed on the right side inside the ball mill box (2). An installation block (26) is fixedly installed inside the screen (25). Three sampling slots (44) are opened on the right side of the installation block (26). An electromagnet (48), an electronic scale (47) and a gas guide box (45) are arranged from left to right inside the sampling slots (44). A gas supply component is arranged between the three gas guide boxes (45). A rotating plate (27) is rotatably connected to the left side of the installation block (26). Three sampling slots (40) and three gas guide slots (31) are opened on one side of the rotating plate (27). An L-shaped frame (28) is connected to one side of each of the three gas guide slots (31). A detection component is installed on one of the L-shaped frames (28). The air guide box (45) is fixedly connected to the mounting block (26), the electronic scale (47) is fixedly installed on the left side of the air guide box (45), the electromagnet (48) is fixedly installed on the left side of the electronic scale (47), and a curved groove (49) is provided on the left side of the electromagnet (48). The mounting block (26) is fixedly connected to a second drive motor (43), and the output end of the second drive motor (43) is fixedly connected to a second transmission shaft (41). The second transmission shaft (41) is fixedly connected to a rotating plate (27), and a second brake (42) is sleeved on the outside of the second transmission shaft (41). The second brake (42) is fixedly installed inside the mounting block (26). One of the L-shaped frames (28) has a storage slot (30) on one side. The detection component includes a second partition (35), a pressure sensor (37), and an inflation component (38) disposed inside the storage slot (30). The end of the second partition (35) away from the air guide groove (31) is fixedly connected to the L-shaped frame (28). The end of the second partition (35) near the air guide groove (31) is fixedly connected to a first partition (32). A three-way valve (33) is disposed on the side of the first partition (32) near the air guide groove (31). The pressure sensor (37), the three-way valve (33), and the first partition (32) are all fixedly connected to the L-shaped frame (28). The normally closed end and the normally open end of the three-way valve (33) are both fixedly connected to exhaust pipes (34). Both exhaust pipes (34) pass through the first partition (32) and are connected to the first partition. (32) Fixed connection, the two exhaust pipes (34) are respectively set on both sides of the second partition (35), the second partition (35) is fixedly connected to the solenoid valve (36), the solenoid valve (36) is set inside the L-shaped frame (28), the second partition (35) and the L-shaped frame (28) are fixedly connected to the third partition (39), the inflation expansion member (38) is fixedly installed on the side of the second partition (35) away from the air pressure sensor (37), the inflation expansion member (38) is provided with multiple connecting grooves (56), the connecting grooves (56) are opened on one side of the second partition (35), the L-shaped frame (28) is fixedly connected to the rotating plate (27), the L-shaped frame (28) with the storage groove (30) is provided with multiple exhaust grooves (29), the exhaust grooves (29) are connected to the inside of the L-shaped frame (28); The mounting block (26) has a square groove (50) at the bottom. The air supply component includes an air pump (51) installed inside the square groove (50) and an air inlet pipe (54) fixedly connected to the air inlet end of the air pump (51). Two filters (55) are fixedly connected inside the air inlet pipe (54). The air pump (51) is fixedly connected to the mounting block (26). An air distribution box (52) is fixedly connected to the air outlet end of the air pump (51). Three air guide bends (53) are fixedly connected to the air distribution box (52). The three air guide bends (53) are fixedly connected to three air distribution boxes (45) respectively. Multiple air outlet circular grooves (46) are opened on the left side of the air distribution box (45).

2. A ball mill with wear detection capability according to claim 1, characterized in that: The support structure includes a support frame (1) and a drive motor (21). Two mounting bearings (3) are fixedly installed inside the support frame (1). Both mounting bearings (3) are fixedly installed on the outside of the ball mill box (2). A support shaft (7) and two support shafts (8) are fixedly connected to both sides of the support frame (1). A top material frame (9) is provided at the bottom of each of the four support shafts (8). A grounding frame (11) is sleeved on the bottom of the outside of the top material frame (9). A hydraulic cylinder (10) is fixedly connected inside the grounding frame (11). The piston end of the hydraulic cylinder (10) is fixedly connected to the top material frame (9). A grounding frame (4) is rotatably installed on the outside of each of the two support shafts (7).

3. A ball mill with wear detection capability according to claim 2, characterized in that: Two side grooves (12) are opened at the bottom of the two grounding frames (11) on the left side. A wheel (13) is provided inside the side groove (12). The wheel (13) is fixedly connected to the grounding frame (11). A connecting plate (14) is fixedly connected between the two grounding frames (11) on the left side. A horizontal plate is fixedly connected to the two grounding frames (11) on the left side. A hydraulic cylinder (15) is fixedly inserted on the grounding frame (4) on the front side. The piston end of the hydraulic cylinder (15) is fixedly connected to the adjacent horizontal plate. Two guide frames (16) are inserted on the two grounding frames (4). One end of the guide frame (16) is fixedly connected to the adjacent horizontal plate.

4. A ball mill with wear detection capability according to claim 2, characterized in that: One of the grounding frames (4) is fixedly connected to a forward and reverse motor (5) and a reducer (6) on one side. The output end of the forward and reverse motor (5) is fixedly connected to the input end of the reducer (6). The output end of the reducer (6) is fixedly connected to the adjacent support shaft (7). The other grounding frame (4) is fixedly connected to a brake (17) on one side. The brake (17) is sleeved on the outside of the adjacent support shaft (7).

5. A ball mill with wear detection capability according to claim 2, characterized in that: The drive motor (21) is fixedly installed on the right side of the support frame (1). The reducer (22) is fixedly installed on the right side of the support frame (1). The output end of the drive motor (21) is fixedly connected to the input end of the reducer (22). The output end of the reducer (22) is fixedly connected to the transmission shaft (23). The transmission shaft (23) is rotatably inserted through the right side of the support frame (1). The gear (24) is fixedly installed on the outside of the transmission shaft (23). The discharge valve (19) is fixedly connected to the right end of the ball mill box (2). The discharge valve (19) passes through the support frame (1) and is rotatably connected to the support frame (1). The gear (20) is fixedly sleeved on the outside of the discharge valve (19). The gear (20) meshes with the gear (24). The external threaded part (18) is threadedly connected to the left side of the ball mill box (2).

6. A detection system, applicable to a ball mill capable of detecting wear degree as described in any one of claims 1-5, characterized in that: The detection system includes a wireless communication module, a wear data calculation module, a wear analysis module, a report generation module, and a timing control module.

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