A high efficiency ball mill device and method of use thereof

Abstract

The application provides a high-efficiency ball mill device, which comprises a support and a ball mill barrel horizontally connected to the support; a driving mechanism is used to drive the ball mill barrel to rotate; a dust exhaust pipe is coaxial with the ball mill barrel, and the two ends of the dust exhaust pipe are rotationally connected to the two ends of the ball mill barrel; a plurality of dust exhaust holes are formed in the side wall of the dust exhaust pipe, and the dust exhaust holes are communicated with the inner cavity of the ball mill barrel and the inner cavity of the dust exhaust pipe; one end of the dust exhaust pipe is communicated with the outside of the dust exhaust pipe; and the free end of the dust exhaust pipe is communicated with a dust removal unit. The high-efficiency ball mill device can improve the efficiency.

Description

Technical Field

[0001] This invention belongs to the field of ball milling technology and relates to a high-efficiency ball milling device and its usage method. Background Technology

[0002] Ball mills are key pieces of equipment for further pulverizing materials after they have been crushed. This type of ball mill uses a certain number of steel balls as grinding media inside its cylinder. It is widely used in the production industries of cement, silicate products, new building materials, refractory materials, fertilizers, ferrous and non-ferrous metal ore beneficiation, and glass and ceramics, for dry or wet grinding of various ores and other grindable materials.

[0003] Currently, common ball mills on the market mainly consist of a grinding cylinder, a support frame for the grinding cylinder, and a motor and gears for driving the grinding mill. When crushing materials, both the material and steel balls are added to the grinding cylinder. The grinding cylinder then rotates, causing the steel balls and material to be lifted and fall back down. During this process, the material collides with the inner wall of the grinding cylinder and with the steel balls, breaking large particles into smaller ones. While this method can conveniently grind small-diameter particles into a fine powder, as crushing progresses, the proportion of powder in the grinding cylinder becomes greater than, or even far greater than, the particle size. At this point, the powder easily surrounds or covers the particles, and it also acts as a buffer, reducing the crushing effect of the steel balls on the particles. Therefore, to achieve the desired powder state for all materials, a sufficient grinding time is required, resulting in low efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency ball milling device and its usage method, aiming to solve the problem of low efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides a high-efficiency ball milling device, comprising:

[0006] A support frame and a ball mill cylinder that is horizontally rotatably connected to the support frame;

[0007] A drive mechanism for driving the ball mill cylinder to rotate;

[0008] A dust discharge pipe is coaxial with the ball mill cylinder, and both ends of the dust discharge pipe are rotatably connected to both ends of the ball mill cylinder. Several dust discharge holes are provided on the side wall of the dust discharge pipe, and the dust discharge holes communicate with the inner cavity of the ball mill cylinder and the inner cavity of the dust discharge pipe.

[0009] A vacuum suction pipe, one end of which is externally connected to the dust discharge pipe;

[0010] The dust removal unit has its free end connected to the dust removal unit.

[0011] The invention is further configured such that a feeding rack is provided at the top of the support, a feeding pipe is horizontally provided at the top of the feeding rack, the feeding pipe is rotatably connected to the middle of one end of the ball mill cylinder, the outer end of the feeding pipe is provided with a funnel-shaped guide part with an upward opening, the inner end is provided with a connecting plate vertically, the bottom of the inner end is provided with a feeding port, one end of the dust discharge pipe is connected to the outer side of the connecting plate, the middle of the ball mill cylinder is provided with a discharge port, and the outer wall of the ball mill cylinder is provided with a discharge plate for opening and closing the discharge port.

[0012] The present invention is further configured such that the discharge plate includes a baffle portion and a connecting portion, the shape of the baffle portion matches the shape of the discharge port, the connecting portion is attached to the outer wall of the ball mill cylinder, and a plurality of positioning bolts are provided movably through the connecting portion, all of which are threadedly connected to the outer wall of the ball mill cylinder.

[0013] The present invention is further configured such that all the dust discharge holes are elongated, and the length direction of the dust discharge holes is parallel to the length direction of the dust discharge pipe, the longitudinal section of the dust discharge holes is V-shaped, and the width of the inner opening of the dust discharge holes is greater than the width of the outer opening.

[0014] The present invention is further configured such that a synchronization ring is fixedly provided on the inner wall of the ball mill cylinder on the side away from the feeding frame, and a plurality of synchronization parts are provided on the inner side of the synchronization ring. A cleaning screen is movably sleeved on the outer wall of the dust discharge pipe. The cleaning screen is used to clean particles stuck in the dust discharge hole. The cleaning screen is fixedly connected to all the synchronization parts.

[0015] The cleaning net includes several longitudinal strips and several connecting rings. The length direction of the longitudinal strips is parallel to the length direction of the dust discharge pipe. The connecting rings are fixedly connected to all the longitudinal strips. The longitudinal strips and the connecting rings are movably attached to the outer wall of the dust discharge pipe.

[0016] The present invention is further configured such that a plurality of L-shaped stabilizing frames are fixedly provided on the inner wall of the ball mill cylinder near the feeding frame, and the free ends of all the stabilizing frames are fixedly connected to the end of the cleaning net away from the synchronization part.

[0017] The present invention is further configured such that the dust removal unit includes a suction fan and a bag filter or a cyclone dust collector, wherein the air inlet of the bag filter or the cyclone dust collector is connected to the free end of the suction pipe, and the air outlet is connected to the suction fan, wherein the impeller of the suction fan is externally connected to a drive motor, and the output shaft of the drive motor is used to drive the impeller of the suction fan to rotate;

[0018] The output shaft of the drive motor is provided with a first gear. The drive mechanism includes a linkage rod that is horizontally rotatably connected to the bracket. The linkage rod is provided with a second gear and a third gear that meshes with the first gear. The diameter of the second gear and the diameter of the first gear are both smaller than the diameter of the third gear. A passive tooth body is provided on the outer wall of the ball mill cylinder. The second gear meshes with the passive tooth body.

[0019] The present invention is further configured such that the inner wall of the dust exhaust pipe is provided with a trumpet-shaped blocking member, and the blocking member has dust exhaust holes on both sides. The outer side of the blocking member is connected to the inner wall of the dust exhaust pipe, and the inner side is connected to an auxiliary pipe. The outer wall of the auxiliary pipe is separated from the inner wall of both the dust exhaust pipe and the suction pipe, and the free end of the auxiliary pipe is flush with the free end of the suction pipe.

[0020] The invention is further configured such that the inner wall of the dust exhaust pipe is provided with a trumpet-shaped blower, and the blower has dust exhaust holes on both sides. The outer side of the blower is connected to the inner wall of the dust exhaust pipe, and the inner side is connected to a blower pipe. The outer wall of the blower pipe is separated from the outer wall of the dust exhaust pipe. The free end of the blower pipe passes through the middle of the dust suction pipe and is connected to a blower. The top of the material guide is threadedly connected to a sealing cap.

[0021] The present invention also discloses a method for using a high-efficiency ball mill apparatus as described in any of the preceding claims, comprising the following steps:

[0022] S1, Add steel balls and granules into the ball mill cylinder;

[0023] S2, the drive mechanism drives the ball mill cylinder to rotate, causing the steel balls and granules to be lifted up and then fall down;

[0024] S3, the dust removal unit creates negative pressure in the dust discharge pipe through the suction pipe. The powder raised by the ball mill enters the dust discharge pipe through the dust discharge hole, and then enters the dust removal unit through the suction pipe to be filtered out and collected.

[0025] Compared with existing technologies, this invention provides a high-efficiency ball milling device. During processing, steel balls and granules are added into the ball mill cylinder. A drive mechanism drives the ball mill cylinder to rotate, causing the steel balls and granules to be lifted and then fall. A dust removal unit creates negative pressure in the dust discharge pipe through a suction pipe. The powder lifted by the ball mill cylinder passes through the dust discharge hole and enters the dust discharge pipe, and then enters the dust removal unit through the suction pipe to be filtered out and collected. In this application, it is preferable that the steel balls and granules do not act on the dust discharge pipe, thus providing better protection for the dust discharge pipe. Secondly, both ends of the dust discharge pipe are connected to the suction pipe and the connecting plate respectively (the suction pipe is externally supported by a frame), so it does not rotate. At the same time, this application is preferably suitable for products with low output and is not suitable for scenarios with high output such as concrete.

[0026] During the ball milling process, the generated powder is lifted into the air and sucked to the outside by the dust discharge pipe and suction pipe, where it is filtered and collected by the dust removal unit. This reduces the amount of powder inside the ball mill cylinder. As the steel balls act on the granules, the buffering effect of the powder and the coating of the powder on the granules are reduced, thereby improving the crushing efficiency of the granules. At the same time, since the granules cannot enter the dust discharge pipe, the particle size of the powder collected from the dust removal unit is guaranteed to meet the requirements, eliminating the need for subsequent screening or sieving of the uncrushed granules, which facilitates subsequent processing and manufacturing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of one embodiment of a high-efficiency ball mill device according to the present invention;

[0028] Figure 2 yes Figure 1 Enlarged view of section A;

[0029] Figure 3 This is a cross-sectional view of one embodiment of a high-efficiency ball mill device according to the present invention;

[0030] Figure 4 yes Figure 3 Enlarged view of section B;

[0031] Figure 5 yes Figure 3 Enlarged view of section C;

[0032] Figure 6 yes Figure 3 Enlarged view of section D;

[0033] Figure 7 yes Figure 3 Enlarged view of section E in the middle;

[0034] Figure 8This is a schematic diagram of an embodiment of the cleaning screen part in a first embodiment of a high-efficiency ball mill device of the present invention;

[0035] Figure 9 yes Figure 8 Enlarged view of section F in the middle;

[0036] Figure 10 This is an internal schematic diagram of an embodiment of the dust discharge pipe and dust suction pipe in a high-efficiency ball mill device according to Embodiment 1 of the present invention;

[0037] Figure 11 yes Figure 10 Enlarged view of section G in the middle;

[0038] Figure 12 yes Figure 10 Enlarged view of section H in the middle;

[0039] Figure 13 This is a schematic diagram of an embodiment of the feed pipe section in a first embodiment of a high-efficiency ball mill device of the present invention;

[0040] Figure 14 This is a schematic diagram of an embodiment of the discharge plate in a high-efficiency ball mill device according to Embodiment 1 of the present invention;

[0041] Figure 15 This is an internal schematic diagram of an embodiment of the dust discharge pipe and dust suction pipe in a second embodiment of a high-efficiency ball mill device of the present invention;

[0042] Figure 16 yes Figure 15 Enlarged view of section I.

[0043] The components are as follows: 1. Support frame; 2. Grinding cylinder; 3. Dust discharge pipe; 4. Dust discharge hole; 5. Suction pipe; 6. Feeding rack; 7. Feeding pipe; 8. Guide section; 9. Connecting plate; 10. Feeding port; 11. Discharge plate; 11a. Baffle section; 11b. Connecting section; 12. Synchronization ring; 13. Synchronization section; 14. Cleaning net; 14a. Longitudinal strip; 14b. Connecting ring; 15. Stabilizing frame; 16. Suction fan; 17. Bag dust collector; 18. Drive motor; 19. First gear; 20. Linkage rod; 21. Second gear; 22. Third gear; 23. Passive gear body; 24. Blocking component; 25. Auxiliary pipe; 26. Blower component; 27. Blower pipe; 28. Blower. Detailed Implementation

[0044] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed explanation of the high-efficiency ball mill apparatus and its usage method proposed in this invention. The advantages and features of this invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this invention. The same or similar reference numerals in the drawings represent the same or similar parts.

[0045] Example 1

[0046] A high-efficiency ball milling device, such as Figures 1 to 14 As shown, it includes:

[0047] The support 1 and the ball mill cylinder 2 are horizontally rotatably connected to the support 1. The outer wall of the ball mill cylinder 2 has two sets of limiting rings, and there are four support wheels on the outside of the support 1. There are two support wheels between each set of limiting rings, and the two support wheels are distributed on both sides of the center of the ball mill cylinder 2. This allows the ball mill cylinder 2 to rotate normally on the support 1. Depending on the actual situation, a clamping wheel can also be set on the support 1. The clamping wheel presses against the top of the ball mill cylinder 2 to ensure the stability of the height of the ball mill cylinder 2; or the ball mill cylinder 2 can also maintain a stable position under its own gravity.

[0048] A drive mechanism is provided to drive the ball mill cylinder 2 to rotate.

[0049] Dust discharge pipe 3 is coaxial with the ball mill cylinder 2, and both ends of the dust discharge pipe 3 are rotatably connected to both ends of the ball mill cylinder 2. Several dust discharge holes 4 are opened on the side wall of the dust discharge pipe 3, and the dust discharge holes 4 are connected to the inner cavity of the ball mill cylinder 2 and the inner cavity of the dust discharge pipe 3.

[0050] The suction pipe 5 is externally connected to one end of the dust discharge pipe 3;

[0051] The dust removal unit has its free end connected to the dust removal unit.

[0052] The top of the support 1 is provided with a feeding rack 6, and the top of the feeding rack 6 is provided with a feeding pipe 7 horizontally. The feeding pipe 7 is rotatably connected to the middle of one end of the ball mill cylinder 2. The outer end of the feeding pipe 7 is provided with a funnel-shaped guiding part 8 with an upward opening, and the inner end is provided with a connecting plate 9 vertically. The bottom of the inner end is provided with a feeding port 10. One end of the dust discharge pipe 3 is connected to the outer side of the connecting plate 9. The middle of the ball mill cylinder 2 is provided with a discharge port, and the outer wall of the ball mill cylinder 2 is provided with a discharge plate 11 for opening and closing the discharge port.

[0053] The discharge plate 11 includes a baffle part 11a and a connecting part 11b. The shape of the baffle part 11a matches the shape of the discharge port. The connecting part 11b is attached to the outer wall of the ball mill cylinder 2. Several positioning bolts are provided through the connecting part 11b. All positioning bolts are threadedly connected to the outer wall of the ball mill cylinder 2.

[0054] The dust discharge holes 4 are all elongated, and the length direction of the dust discharge holes 4 is parallel to the length direction of the dust discharge pipe 3. The longitudinal section of the dust discharge holes 4 is V-shaped, and the width of the inner opening of the dust discharge holes 4 is greater than the width of the outer opening.

[0055] A synchronization ring 12 is fixedly installed on the inner wall of the ball mill cylinder 2 on the side away from the feeding frame 6. A plurality of synchronization parts 13 are provided on the inner side of the synchronization ring 12. A cleaning net 14 is movably sleeved on the outer wall of the dust discharge pipe 3. The cleaning net 14 is used to clean particles stuck in the dust discharge hole 4. The cleaning net 14 is fixedly connected to all the synchronization parts 13.

[0056] The cleaning net 14 includes several longitudinal strips 14a and several connecting rings 14b. The length direction of the longitudinal strips 14a is parallel to the length direction of the dust discharge pipe 3. The connecting rings 14b are fixedly connected to all the longitudinal strips 14a. Both the longitudinal strips 14a and the connecting rings 14b are movably attached to the outer wall of the dust discharge pipe 3.

[0057] Several L-shaped stabilizing frames 15 are fixedly installed on the inner wall of the ball mill cylinder 2 near the feeding frame 6. The free ends of all the stabilizing frames 15 are fixedly connected to the end of the cleaning net 14 away from the synchronization part 13.

[0058] The dust removal unit includes a suction fan 16 and a bag filter or a cyclone dust collector 17. The air inlet of the bag filter or the cyclone dust collector is connected to the free end of the suction pipe 5, and the air outlet is connected to the suction fan 16. The impeller of the suction fan 16 is externally connected to a drive motor 18, and the output shaft of the drive motor 18 is used to drive the impeller of the suction fan 16 to rotate.

[0059] A first gear 19 is provided on the output shaft of the drive motor 18. The drive mechanism includes a linkage rod 20 that is horizontally rotatably connected to the bracket 1. A second gear 21 and a third gear 22 that mesh with the first gear 19 are provided on the linkage rod 20. The diameter of the second gear 21 and the diameter of the first gear 19 are both smaller than the diameter of the third gear 22. A driven tooth 23 is provided on the outer wall of the ball mill cylinder 2. The second gear 21 meshes with the driven tooth 23. The linkage rod 20 has two second gears 21, and there are two sets of driven teeth 23 on the outer wall of the ball mill cylinder 2. The two second gears 21 act on both ends of the ball mill cylinder 2, which can further ensure the stability of the movement of the ball mill cylinder 2.

[0060] The inner wall of the dust exhaust pipe 3 is provided with a trumpet-shaped blocking member 24. Both sides of the blocking member 24 have dust exhaust holes 4. The outer side of the blocking member 24 is connected to the inner wall of the dust exhaust pipe 3, and the inner side is connected to an auxiliary pipe 25. The outer wall of the auxiliary pipe 25 is separate from the inner wall of the dust exhaust pipe 3 and the suction pipe 5, and the free end of the auxiliary pipe 25 is flush with the free end of the suction pipe 5.

[0061] The present invention also discloses a method for using a high-efficiency ball mill apparatus as described in any of the preceding claims, comprising the following steps:

[0062] S1, Add steel balls and granules into the ball mill cylinder 2;

[0063] S2, the drive mechanism drives the ball mill cylinder 2 to rotate, causing the steel balls and granules to be lifted up and then fall down;

[0064] S3, the dust removal unit creates a negative pressure in the dust discharge pipe 3 through the suction pipe 5. The powder raised by the ball mill cylinder 2 passes through the dust discharge hole 4 and enters the dust discharge pipe 3. It then enters the dust removal unit through the suction pipe 5, is filtered out, and collected.

[0065] This invention provides a high-efficiency ball milling device. During processing, steel balls and granules are added into the ball mill cylinder 2. A drive mechanism drives the ball mill cylinder 2 to rotate, causing the steel balls and granules to be lifted and then fall. A dust removal unit creates a negative pressure in the dust discharge pipe 3 through the suction pipe 5. The powder lifted by the ball mill cylinder 2 passes through the dust discharge hole 4 and enters the dust discharge pipe 3, and then enters the dust removal unit through the suction pipe 5 to be filtered out and collected. In this application, it is preferable that the steel balls and granules do not act on the dust discharge pipe 3, thus providing better protection for the dust discharge pipe 3. Secondly, both ends of the dust discharge pipe 3 are connected to the suction pipe 5 and the connecting plate 9 respectively (the suction pipe 5 is externally supported by a frame), so it does not rotate. At the same time, this application is preferably suitable for products with low output and is not suitable for scenarios with high output such as concrete.

[0066] During the ball milling process, the generated powder is lifted up and sucked to the outside by the dust discharge pipe 3 and the dust suction pipe 5, and then filtered and collected by the dust removal unit. This reduces the amount of powder in the ball mill cylinder 2. When the steel balls act on the granules, the buffering of the powder and the coating of the powder on the granules are reduced, thereby improving the crushing efficiency of the granules. At the same time, since the granules cannot enter the dust discharge pipe 3, it can be ensured that the particle size of the powder collected from the dust removal unit meets the requirements, eliminating the need for subsequent screening or sieving of the uncrushed granules, which facilitates subsequent processing and manufacturing.

[0067] In actual ball milling, first rotate the discharge port to the side position, then remove the positioning bolts and discharge plate 11, and put the steel balls into the ball mill cylinder 2. Then, fix the discharge plate 11 to the outside of the ball mill cylinder 2 with the positioning bolts. The baffle part 11a can fit perfectly inside the discharge port, thus ensuring that the inner wall shape of the ball mill cylinder 2 is the same.

[0068] Then, the granular material is added to the feed guide 8. Under the action of gravity, the material enters the feed pipe 7 and then enters the ball mill cylinder 2 through the feed port 10. At the same time, the ball mill cylinder 2 drives the stabilizer 15 to rotate. The stabilizer 15 can disperse and crush the granular material and prevent the granular material from being blocked at the feed port 10, so that the granular material can smoothly enter the ball mill cylinder 2.

[0069] During the ball milling process, the output shaft of the drive motor 18 drives the impeller to rotate, thereby creating a negative pressure inside the bag filter 17 housing through the suction fan 16. This also creates a negative pressure inside the dust discharge pipe 3, drawing the powder out of the ball mill cylinder 2 and filtering it through the filter bags inside the bag filter 17. Above the dust bags, there is a pulse generator that periodically injects high-pressure air downwards into the dust bags of the bag filter 17, shaking the dust down. At the same time, there is a star-shaped discharge valve at the bottom of the bag filter 17 housing for collecting and discharging the powder. In other words, the bag filter 17 in this embodiment has the same structure as those available commercially.

[0070] The output shaft of the drive motor 18 drives the impeller and also drives the first gear 19 to rotate. The first gear 19 simultaneously drives the third gear 22, the linkage rod 20, and the second gear 21 to rotate. The second gear 21 drives the ball mill cylinder 2 to rotate through the driven gear body 23. In this way, only one drive motor 18 is needed to start the ball mill cylinder 2 and the suction fan 16, resulting in lower costs. At the same time, the third gear 22 has a larger diameter, the first gear 19 and the second gear 21 have smaller diameters, and the diameters of all the driven gear bodies 23 are also large (i.e., the diameter of the ball mill cylinder 2). This ensures that the impeller has a sufficient rotational speed, while the ball mill cylinder 2 has a relatively low rotational speed.

[0071] When the ball mill cylinder 2 moves the steel balls and materials, the steel balls and materials will not act on the dust discharge pipe 3. At the same time, one end of the dust discharge pipe 3 is connected to the dust suction pipe 5, the dust suction pipe 5 is connected to a bracket 1, and the other end is connected to the connecting plate 9. The feeding pipe 7 is fixedly connected to the feeding frame 6. Therefore, the bracket 1 and the feeding frame 6 can ensure the stability of the positions of the dust discharge pipe 3, the dust suction pipe 5, the feeding pipe 7, etc., and ensure that the ball mill cylinder 2 does not affect the above structures.

[0072] The dust discharge hole 4 is elongated, ensuring sufficient suction and suction area for dust while maintaining a small opening to prevent small particles (larger than powder) from splashing into the dust discharge pipe 3. The longitudinal section of the dust discharge hole 4 is V-shaped, preventing small particles from getting stuck while allowing powder that can enter the hole to flow smoothly into the dust discharge pipe 3. When the ball mill cylinder 2 rotates, the synchronization ring 12, synchronization part 13, and stabilizer 15 drive both ends of the cleaning screen 14 to rotate. Even if some small particles get stuck on the outside of the dust discharge hole 4, the longitudinal strip 14a can drive them off the dust discharge pipe 3, ensuring the normal operation of the dust discharge hole 4. During use, steel balls and large particles also cannot act on the cleaning screen 14, ensuring its service life. The longitudinal strip 14a is long and can cover all the dust discharge holes 4, while having the lightest coverage on the dust discharge holes 4. Secondly, the connecting ring 14b can support the longitudinal strip 14a and prevent the longitudinal strip 14a from deforming, thus ensuring the service life of the cleaning net 14.

[0073] When a negative pressure is formed inside the bag filter 17, negative pressure is formed at the ends of the suction pipe 5 and the auxiliary pipe 25. Since the exhaust pipe 3 is relatively long, if there is only the suction pipe 5 (i.e., without the obstruction 24 and the auxiliary pipe 25), the suction force of the exhaust pipe 3 section close to the suction pipe 5 will be greater, while the suction force of the section farther away from the suction pipe 5 will be smaller, resulting in a poor overall dust collection effect. However, since a negative pressure is also formed inside the auxiliary pipe 25, and the auxiliary pipe 25 and the obstruction 24 can directly create a relatively large negative pressure in the exhaust pipe 3, which is farther away from the suction pipe 5. This makes the overall negative pressure in the exhaust pipe 3 more uniform, and the overall adsorption effect of powder is better.

[0074] Example 2

[0075] The difference from Example 1 is that, as Figures 15 to 16As shown, the inner wall of the dust exhaust pipe 3 is provided with a trumpet-shaped blower 26. The blower 26 has dust exhaust holes 4 on both sides. The outer side of the blower 26 is connected to the inner wall of the dust exhaust pipe 3, and the inner side is connected to a blower pipe 27. The outer wall of the blower pipe 27 is separated from the outer wall of the dust exhaust pipe 3. The free end of the blower pipe 27 passes through the middle of the dust suction pipe 5 and is connected to a blower 28. The top of the material guide part 8 is threadedly connected to a sealing cap.

[0076] During operation, the sealing cap needs to be threaded onto the feed guide 8. Simultaneously, the blower 28 injects compressed air into the ball mill cylinder 2 through the air duct and the blower component 26. The compressed air is discharged from a portion of the dust exhaust pipe 3, while the suction pipe 5 creates negative pressure in a portion of the dust exhaust pipe 3. This blowing and suction action effectively draws the dust from inside the ball mill cylinder 2 to the outside. Due to the presence of the blower 28, the dust is not only stirred up but also artificially blown up, thereby increasing the amount of dust lifted and improving the dust discharge speed, which indirectly accelerates the ball milling efficiency.

[0077] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A high-efficiency ball milling device, characterized in that, include: A support (1) and a ball mill cylinder (2) that is rotatably connected to the support (1); A drive mechanism is provided for driving the ball mill cylinder (2) to rotate. Dust discharge pipe (3) is coaxial with the ball mill cylinder (2), and the two ends of the dust discharge pipe (3) are rotatably connected to the two ends of the ball mill cylinder (2). Several dust discharge holes (4) are opened on the side wall of the dust discharge pipe (3), and the dust discharge holes (4) are connected to the inner cavity of the ball mill cylinder (2) and the inner cavity of the dust discharge pipe (3). A vacuum pipe (5) is connected to the outside of one end of the dust discharge pipe (3); The dust removal unit, wherein the free end of the dust suction pipe (5) is connected to the dust removal unit; The top of the support (1) is provided with a feeding rack (6); A synchronization ring (12) is fixedly installed on the inner wall of the ball mill cylinder (2) away from the feeding rack (6). A plurality of synchronization parts (13) are provided on the inner side of the synchronization ring (12). A cleaning net (14) is movably sleeved on the outer wall of the dust discharge pipe (3). The cleaning net (14) is used to clean particles stuck in the dust discharge hole (4). The cleaning net (14) is fixedly connected to all the synchronization parts (13). The cleaning net (14) includes several longitudinal strips (14a) and several connecting rings (14b). The length direction of the longitudinal strips (14a) is parallel to the length direction of the dust discharge pipe (3). The connecting rings (14b) are fixedly connected to all the longitudinal strips (14a). The longitudinal strips (14a) and the connecting rings (14b) are movably attached to the outer wall of the dust discharge pipe (3). Several L-shaped stabilizing frames (15) are fixedly installed on the inner wall of the ball mill cylinder (2) near the feeding rack (6). The free ends of all the stabilizing frames (15) are fixedly connected to the end of the cleaning net (14) away from the synchronization part (13).

2. The high-efficiency ball milling device according to claim 1, characterized in that, The top of the feeding rack (6) is horizontally provided with a feeding pipe (7), which is rotatably connected to the middle of one end of the ball mill cylinder (2). The outer end of the feeding pipe (7) is provided with a funnel-shaped guide part (8) with an upward opening, and the inner end is provided with a connecting plate (9). The bottom of the inner end is provided with a feeding port (10). One end of the dust discharge pipe (3) is connected to the outside of the connecting plate (9). The middle of the ball mill cylinder (2) is provided with a discharge port. The outer wall of the ball mill cylinder (2) is provided with a discharge plate (11) for opening and closing the discharge port.

3. The high-efficiency ball milling device according to claim 2, characterized in that, The discharge plate (11) includes a baffle (11a) and a connecting part (11b). The shape of the baffle (11a) matches the shape of the discharge port. The connecting part (11b) is attached to the outer wall of the ball mill cylinder (2). Several positioning bolts are provided through the connecting part (11b). The positioning bolts are all threadedly connected to the outer wall of the ball mill cylinder (2).

4. The high-efficiency ball milling device according to claim 2, characterized in that, The dust discharge holes (4) are all elongated, and the length direction of the dust discharge holes (4) is parallel to the length direction of the dust discharge pipe (3). The longitudinal section of the dust discharge holes (4) is V-shaped, and the width of the inner opening of the dust discharge holes (4) is greater than the width of the outer opening.

5. The high-efficiency ball milling device according to claim 2, characterized in that, The dust removal unit includes a blower (16) and a bag filter (17) or a cyclone dust collector. The air inlet of the bag filter (17) or the cyclone dust collector is connected to the free end of the suction pipe (5), and the air outlet is connected to the blower (16). The impeller of the blower (16) is externally connected to a drive motor (18), and the output shaft of the drive motor (18) is used to drive the impeller of the blower (16) to rotate. The output shaft of the drive motor (18) is provided with a first gear (19). The drive mechanism includes a linkage rod (20) that is horizontally rotatably connected to the bracket (1). The linkage rod (20) is provided with a second gear (21) and a third gear (22) that meshes with the first gear (19). The diameter of the second gear (21) and the diameter of the first gear (19) are both smaller than the diameter of the third gear (22). The outer wall of the ball mill cylinder (2) is provided with a passive tooth body (23), and the second gear (21) meshes with the passive tooth body (23).

6. The high-efficiency ball milling device according to claim 5, characterized in that, The inner wall of the dust exhaust pipe (3) is provided with a trumpet-shaped blocking member (24). Both sides of the blocking member (24) have dust exhaust holes (4). The outer side of the blocking member (24) is connected to the inner wall of the dust exhaust pipe (3), and the inner side is connected to an auxiliary pipe (25). The outer wall of the auxiliary pipe (25) is separated from the inner wall of the dust exhaust pipe (3) and the suction pipe (5), and the free end of the auxiliary pipe (25) is flush with the free end of the suction pipe (5).

7. The high-efficiency ball milling device according to claim 5, characterized in that, The inner wall of the dust exhaust pipe (3) is provided with a trumpet-shaped blower (26). Both sides of the blower (26) have dust exhaust holes (4). The outer side of the blower (26) is connected to the inner wall of the dust exhaust pipe (3), and the inner side is connected to a blower pipe (27). The outer wall of the blower pipe (27) is separated from the outer wall of the dust exhaust pipe (3). The free end of the blower pipe (27) passes through the middle of the dust suction pipe (5) and the free end of the blower pipe (27) is connected to a blower (28). The top of the guide part (8) is threaded with a sealing cap.

8. A method for using a high-efficiency ball mill apparatus as described in any one of claims 1-7, characterized in that, Includes the following steps: S1, add steel balls and granules into the ball mill cylinder (2); S2, the drive mechanism drives the ball mill cylinder (2) to rotate, causing the steel balls and granules to be lifted up and then fall down; S3, the dust removal unit creates a negative pressure in the dust discharge pipe (3) through the suction pipe (5). The powder raised by the ball mill (2) enters the dust discharge pipe (3) after passing through the dust discharge hole (4), and enters the dust removal unit through the suction pipe (5) to be filtered out and collected.

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