Pulverizer

Abstract

The utility model relates to the technical field of crushers. The pulverizer comprises a hopper, the bottom of the hopper communicates with a primary pulverizing assembly, the bottom of the primary pulverizing assembly is provided with a fine grinding assembly, the fine grinding assembly comprises a screening assembly arranged at the bottom of the fine grinding assembly, and a storage box is arranged at the bottom of the screening assembly. A conveying assembly used for conveying large-particle medicine powder to the hopper again is arranged on one side of the screening assembly, a driving assembly used for driving the primary smashing assembly and the accurate grinding assembly is arranged at the top of the storage box, and a dust falling assembly is arranged at the top of the storage box. The fine grinding device has the advantages that the fine grinding rods in the fine grinding assembly further grind medicines, then the medicines fall onto the screening assembly, and the screening assembly screens the crushed medicines.

Description

Technical Field

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

[0002] A universal pulverizer is a material pulverizing device suitable for industries such as pharmaceuticals, chemicals, metallurgy, food, and construction. It can process hard and difficult-to-pulverize materials, including plastics, copper wire, traditional Chinese medicine, and rubber. It can also be used as a supporting equipment for the pre-processing steps of micro pulverizers and ultra-micro pulverizers.

[0003] In the pharmaceutical industry, many drugs need to be pulverized. However, the universal pulverizers currently used for drug pulverization often have problems such as large and uneven particle size after pulverization. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this application provides a pulverizer.

[0005] The crusher provided in this application adopts the following technical solution:

[0006] A pulverizer includes a hopper, with a primary pulverizing assembly connected to the bottom of the hopper. The primary pulverizing assembly includes a pulverizing chamber, inside which a first pulverizing wheel is rotatably mounted. A second pulverizing wheel is rotatably mounted on one side of the first pulverizing wheel. The first and second pulverizing wheels are of the same shape and size. A fine grinding assembly is located at the bottom of the primary pulverizing assembly. The fine grinding assembly includes multiple fine grinding rollers arranged horizontally, with adjacent rollers being tangent to each other. A screening assembly is located at the bottom of the fine grinding assembly, and a storage box is located at the bottom of the screening assembly. A conveying assembly for re-feeding large-particle powder back to the hopper is located on one side of the screening assembly. A driving assembly for driving the primary pulverizing assembly and the fine grinding assembly is located at the top of the storage box, and a dust suppression assembly is located at the top of the storage box.

[0007] By adopting the above technical solution, when in use, the medicine to be crushed is placed into the hopper. Under the action of gravity, the medicine will fall from the bottom of the hopper into the crushing box. During the rotation of the first and second crushing wheels in the crushing box, the medicine will be crushed. The crushed medicine will fall into the fine grinding component under the action of gravity. Multiple fine grinding rollers in the fine grinding component will further crush the medicine. Then the medicine will fall onto the screening component, which will screen the crushed medicine. The medicine crushed into powder will fall into the storage box for temporary storage. The large particles of medicine screened out will be conveyed back to the hopper for crushing again under the action of the conveying component.

[0008] Optionally, the drive assembly includes a drive motor, which is fixedly mounted on the top of the storage box. A drive shaft is coaxially mounted on the output shaft of the drive motor. A first conical wheel and a second conical wheel are coaxially mounted on the drive shaft. A first gear is coaxially mounted on one end of the first crushing wheel, and a second gear is coaxially mounted on one end of the second crushing wheel. The first gear meshes with the second gear. A third conical wheel is also coaxially mounted on the first crushing wheel, and the third conical wheel meshes with the first conical wheel. Rotating gears are coaxially mounted on multiple grinding rollers, and two adjacent rotating gears mesh with each other. A fourth conical wheel is also coaxially mounted on one of the grinding rollers, and the fourth conical wheel meshes with the second conical wheel.

[0009] By adopting the above technical solution, the drive component will simultaneously drive the primary pulverizing component and the fine grinding component to move, so as to pulverize the medicine.

[0010] Optionally, the screening assembly includes a first screen and a second screen. A support frame is provided on the top of the storage box. Both the first screen and the second screen are mounted on the support frame. The first screen is inverted V-shape. Collection plates are inclinedly arranged on both sides of the first screen. A conveying plate is connected to one end of the collection plate. The conveying plate is inclined. The second screen has the same shape and size as the first screen and is located at the bottom of the first screen. Vibration generators are provided on both sides of the first screen and the second screen. Multiple springs are provided at the bottom of both the first screen and the second screen. The other end of each spring is connected to the support frame.

[0011] By adopting the above technical solution, after the medicine passes through the fine grinding component, it will fall onto the first screen under the action of gravity. Then, the vibration generator is activated, and the first screen will vibrate, thereby separating the coarse and fine medicine.

[0012] Optionally, the conveying assembly includes a conveyor belt and a collection box. The collection box is disposed on top of the storage box and has an opening at the top. The collection box is located at the bottom of the conveyor plate. A lifting box is connected to one side of the collection box, and a feeding box is connected to one side of the hopper. The bottom of the conveyor belt is disposed inside the lifting box, and the top of the conveyor belt is located on top of the feeding box. A power motor for driving the conveyor belt to rotate is disposed at the bottom of the conveyor belt.

[0013] By adopting the above technical solution, the powder in the hopper will fall into the collection box during the movement of the conveyor belt, and then the powder will move along the collection box back into the hopper, where it will be ground again.

[0014] Optionally, the dust suppression assembly includes a dust suppression box, a fan, and a dust suppression pipe. The dust suppression box is connected to the top of the storage box, the fan is located on the top of the storage box, the air inlet of the fan is connected to the dust suppression box, one end of the dust suppression pipe is connected to the top of the hopper, and the other end of the dust suppression pipe is connected to the dust suppression box. A filter plate is provided inside the dust suppression box, and the filter plate is located between the air inlet of the fan and the dust suppression box. A discharge plate is provided at the bottom of the dust suppression box.

[0015] By adopting the above technical solution, the fan is started, and the fan draws air out of the dust collection box, thereby creating a negative pressure inside the dust collection box and dust collection pipe, which facilitates the suction of flying dust. The filter plate of the dust collection box will filter the powder, allowing air to circulate and the powder to be filtered into the dust collection box.

[0016] Optionally, a first mounting groove is provided on one side of the dust collection box, and the filter plate is inserted into the first mounting groove. A second mounting groove is provided at the bottom of the dust collection box, and the discharge plate is inserted into the second mounting groove.

[0017] By adopting the above technical solution, the first mounting slot and the second mounting slot can facilitate the disassembly and installation of the filter plate and the discharge plate.

[0018] Optionally, the top of the hopper is hinged with a cover plate, and the cover plate is provided with a handle.

[0019] By adopting the above technical solution, the cover plate can seal the top of the hopper, thereby avoiding the splashing of medicine powder during the crushing process to a certain extent. The handle makes it easy for the staff to operate the cover plate to open and close the hopper.

[0020] Optionally, a sealing ring is provided on the cover plate.

[0021] By adopting the above technical solution, the sealing ring can improve the sealing performance between the cover plate and the hopper.

[0022] This utility model has the following advantages:

[0023] 1. By setting up a primary crushing component, a fine grinding component, and a sieving component, the multiple fine grinding rollers in the fine grinding component will further crush the medicine, and then the medicine will fall onto the sieving component, which will sieve the crushed medicine.

[0024] 2. By setting up a conveying component, the conveying component can transport the large particles of medicine powder screened out by the screening component back into the hopper, so that the medicine powder can be ground again.

[0025] 3. By setting up a dust suppression component, the fan draws air out of the dust suppression box, thereby creating a negative pressure inside the dust suppression box and dust suppression pipe, which facilitates the suction of flying dust. The filter plate of the dust suppression box will filter the powder, allowing air to circulate and the powder to be filtered into the dust suppression box. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the installation structure of the drive component of this utility model;

[0028] Figure 3 This is a schematic diagram of the installation structure of the filter plate of this utility model with a discharge plate;

[0029] Figure 4 This is a schematic diagram of the installation structure of the screening component of this utility model;

[0030] Figure 5 This is a schematic diagram of the installation structure of the conveying assembly of this utility model;

[0031] In the diagram: 1. Hopper; 11. Cover plate; 12. Handle; 13. Sealing ring; 2. Primary crushing assembly; 21. Crushing box; 22. First crushing wheel; 23. Second crushing wheel; 24. First gear; 25. Second gear; 3. Fine grinding assembly; 31. Fine grinding roller; 32. Rotating gear; 4. Screening assembly; 41. First screen; 42. Second screen; 43. Support frame; 44. Collection plate; 45. Conveying plate; 46. Vibration generator; 47. Spring; 5. Storage 6. Material box; 7. Conveying assembly; 8. Conveyor belt; 9. Collection box; 10. Lifting box; 11. Feeding box; 2. Power motor; 3. Drive assembly; 4. Drive motor; 5. Drive shaft; 6. First conical wheel; 7. Second conical wheel; 8. Third conical wheel; 9. Fourth conical wheel; 10. Dust suppression assembly; 11. Dust suppression box; 12. Fan; 13. Dust suppression pipe; 14. Filter plate; 15. Discharge plate; 16. First mounting slot; 17. Second mounting slot. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0033] like Figures 1 to 5As shown, a pulverizer includes a hopper 1. A primary pulverizing assembly 2 is connected to the bottom of the hopper 1. The primary pulverizing assembly 2 includes a pulverizing chamber 21. A first pulverizing wheel 22 is rotatably mounted inside the pulverizing chamber 21. A second pulverizing wheel 23 is rotatably mounted on one side of the first pulverizing wheel 22. The first pulverizing wheel 22 and the second pulverizing wheel 23 are the same shape and size. A fine grinding assembly 3 is installed at the bottom of the primary pulverizing assembly 2. The fine grinding assembly 3 includes multiple fine grinding rollers 31 arranged horizontally, with adjacent fine grinding rollers 31 being tangent. A screening assembly 4 is installed at the bottom of the fine grinding assembly 3. A storage box 5 is installed at the bottom of the screening assembly 4. A conveying assembly 6 for re-feeding large-particle powder back to the hopper 1 is installed on one side of the screening assembly 4. The top of the storage box 5 is equipped with... The device is equipped with a drive assembly 7 for driving the primary crushing assembly 2 and the fine grinding assembly 3, and a dust suppression assembly 8 is installed on the top of the storage box 5. In use, the medicine to be crushed is put into the hopper 1. Under the action of gravity, the medicine will fall from the bottom of the hopper 1 into the crushing box 21. The first crushing wheel 22 and the second crushing wheel 23 in the crushing box 21 will crush the medicine during rotation. The crushed medicine will fall into the fine grinding assembly 3 under the action of gravity. The multiple fine grinding rollers in the fine grinding assembly 3 will further crush the medicine. Then the medicine will fall onto the screening assembly 4. The screening assembly 4 will screen the crushed medicine. The medicine crushed into powder will fall into the storage box 5 for temporary storage. The large particles of medicine screened out will be conveyed back to the hopper 1 for crushing again under the action of the conveying assembly 6.

[0034] like Figures 1 to 5As shown, the drive assembly 7 includes a drive motor 71, which is fixedly mounted on the top of the storage box 5. A drive shaft 72 is coaxially mounted on the output shaft of the drive motor 71. A first conical wheel 73 and a second conical wheel 74 are coaxially mounted on the drive shaft 72. A first gear 24 is coaxially mounted on one end of the first crushing wheel 22, and a second gear 25 is coaxially mounted on one end of the second crushing wheel 23. The first gear 24 and the second gear 25 mesh. A third conical wheel 75 is also coaxially mounted on the first crushing wheel 22, and the third conical wheel 75 meshes with the first conical wheel 73. Rotating gears 32 are coaxially mounted on multiple fine grinding rollers 31, and two adjacent rotating gears 32 mesh with each other. A fourth conical wheel 76 is also coaxially mounted on one of the fine grinding rollers 31, and the fourth conical wheel 76 meshes with the second conical wheel 74. In use, the drive motor 71 is started. 1. During the rotation of the drive motor 71, the drive shaft 72 will rotate synchronously. During the rotation of the drive shaft 72, the first conical wheel 73 and the second conical wheel 74 will rotate synchronously. During the rotation of the first conical wheel 73, the third conical wheel 75 will rotate. During the rotation of the third conical wheel 75, the first crushing wheel 22 will rotate. During the rotation of the first crushing wheel 22, the second gear 25 will rotate via the first gear 24, thereby driving the second crushing wheel 23 to rotate, thus crushing the medicine. During the rotation of the second conical wheel 74, the fourth conical wheel 76 will rotate. During the rotation of the fourth conical wheel 76, the current fine grinding roller 31 will rotate. During the rotation of the current fine grinding roller 31, the other multiple fine grinding rollers 31 will rotate synchronously via the rotating gear 32, thus facilitating the fine grinding of the medicine.

[0035] like Figures 1 to 5As shown, the screening component 4 includes a first screen 41 and a second screen 42. A support frame 43 is installed on the top of the storage box 5. Both the first screen 41 and the second screen 42 are mounted on the support frame 43. The first screen 41 is inverted V-shape. Collection plates 44 are installed obliquely on both sides of the first screen 41. One end of the collection plate 44 is connected to a conveyor plate 45, which is obliquely set. The second screen 42 is the same shape and size as the first screen 41 and is located at the bottom of the first screen 41. Vibration generators 46 are installed on both sides of the first screen 41 and the second screen 42. Multiple springs 47 are installed at the bottom of both the first screen 41 and the second screen 42. The other end of the springs 47 is connected to the support frame 43. In use, when the medicine passes through the fine grinding component 3, it will fall onto the first screen 41 under the action of gravity. Then, the vibration generator 46 is activated, and the first screen 41 will vibrate. The first screen 41 is in an inverted V-shape. The falling medicine will slide from the middle of the first screen 41 to both sides. The powder in the crushed medicine will fall onto the second screen 42 through the first screen 41. Larger particles of medicine will move along the inclined surface of the first screen 41 towards the collection plates 44 on both sides of the first screen 41. Since the collection plates 44 and the conveying plates 45 are both inclined, the larger particles of medicine will move along the collection plates 44 and the conveying plates 45 so that the conveying component 6 can transport the larger particles of medicine back into the hopper 1. The second screen 42 has the same shape and size as the first screen 41, but the mesh diameter on the second screen 42 is smaller than that on the first screen 41, thereby achieving secondary filtration of the medicine and improving the crushing effect of the medicine.

[0036] like Figures 1 to 5 As shown, the conveying assembly 6 includes a conveyor belt 61 and a collection box 62. The collection box 62 is installed on top of the storage box 5, and the top of the collection box 62 is open. The collection box 62 is located at the bottom of the conveyor plate 45. A lifting box 63 is connected to one side of the collection box 62, and a feeding box 64 is connected to one side of the hopper 1. The bottom of the conveyor belt 61 is installed inside the lifting box 63, and the top of the conveyor belt 61 is located on top of the feeding box 64. Multiple lifting hoppers 1 are evenly installed on the conveyor belt 61. A power motor 65 for driving the conveyor belt 61 to rotate is installed at the bottom of the conveyor belt 61. Both ends of the conveyor belt 61 rotate. Equipped with rollers, during use, large particles of medicine powder filtered by the filter assembly will move along the collecting plate 44 and the conveying plate 45 and then fall into the collecting box 62. Then, the power motor 65 is started. As the power motor 65 rotates, it will drive the rollers to rotate, thereby driving the conveyor belt 61 to move. As the conveyor belt 61 moves, it will drive the lifting hopper 1 to move. The lifting hopper 1 is used to lift the large particles of medicine powder to the top of the collecting box 62. Then, as the conveyor belt 61 continues to move, the medicine powder in the lifting hopper 1 will fall into the collecting box 62. Then, the medicine powder will move along the collecting box 62 into the hopper 1, thereby being ground again.

[0037] like Figures 1 to 5 As shown, the dust suppression assembly 8 includes a dust suppression box 81, a fan 82, and a dust suppression pipe 83. The dust suppression box 81 is connected to the top of the storage box 5, and the fan 82 is also connected to the top of the storage box 5. The air inlet of the fan 82 is connected to the dust suppression box 81. One end of the dust suppression pipe 83 is connected to the top of the hopper 1, and the other end is connected to the dust suppression box 81. A filter plate 84 is installed inside the dust suppression box 81, located between the air inlet of the fan 82 and the dust suppression box 81. A discharge plate 85 is installed at the bottom of the dust suppression box 81. During use, dust will be generated when the medicine is crushed and ground. The dust is light and will fly around. If this dust is not treated, it will scatter throughout the equipment. The surrounding environment may cause injury to the personnel using the equipment and also cause loss of medicines. Therefore, while crushing the medicines, the blower 82 is started. The blower 82 draws air out of the dust collection box 81, thereby creating a negative pressure in the dust collection box 81 and the dust collection pipe 83, which facilitates the suction of flying dust. The filter plate 84 of the dust collection box 81 will filter the medicine powder, allowing air to circulate. The medicine powder is filtered into the dust collection box 81. When the medicine processing is completed, the personnel move the discharge plate 85, and the medicine powder in the dust collection box 81 will fall into the storage box 5 under the action of gravity, so that the personnel can process the medicine powder at the same time.

[0038] like Figures 1 to 5 As shown, a first mounting groove 86 is provided on one side of the dust collection box 81, and the filter plate 84 is inserted into the first mounting groove 86. A second mounting groove 87 is provided at the bottom of the dust collection box 81, and the discharge plate 85 is inserted into the second mounting groove 87. The first mounting groove 86 and the second mounting groove 87 facilitate the disassembly and installation of the filter plate 84 and the discharge plate 85. When in use, after the filter plate 84 has been used for a period of time, the filter plate 84 can be pulled out from the first mounting groove 86 to facilitate cleaning of the filter plate 84. When it is necessary to discharge the powder in the dust collection box 81, the discharge plate 85 can be pulled out from the second mounting groove 87.

[0039] like Figures 1 to 5 As shown, a cover plate 11 is hinged to the top of the hopper 1, and a handle 12 is installed on the cover plate 11. The cover plate 11 can close the top of the hopper 1, thereby preventing the powder from splashing during the crushing process of the medicine to a certain extent. The handle 12 makes it easy for the staff to operate the cover plate 11 to open and close the hopper 1.

[0040] like Figures 1 to 5 As shown, a sealing ring 13 is installed on the cover plate 11; the sealing ring 13 can improve the sealing performance between the cover plate 11 and the hopper 1, thereby preventing the powder from flying from the hopper 1 into the surrounding space.

[0041] The implementation principle of this embodiment is as follows: When in use, the medicine to be crushed is placed into the hopper 1. Under the action of gravity, the medicine will fall from the bottom of the hopper 1 into the crushing box 21. During the rotation of the first crushing wheel 22 and the second crushing wheel 23 in the crushing box 21, the medicine will be crushed. The crushed medicine will fall into the fine grinding component 3 under the action of gravity. The multiple fine grinding rollers in the fine grinding component 3 will further crush the medicine. Then the medicine will fall onto the screening component 4. The screening component 4 will screen the crushed medicine. The medicine crushed into powder will fall into the storage box 5 for temporary storage. The large particles of medicine screened out will be conveyed back to the hopper 1 for crushing again under the action of the conveying component 6.

[0042] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.

Claims

1. A pulverizer, characterized in that: The device includes a hopper (1), with a primary crushing assembly (2) connected to the bottom of the hopper (1). The primary crushing assembly (2) includes a crushing box (21), with a first crushing wheel (22) rotatably mounted inside the crushing box (21). A second crushing wheel (23) rotatably mounted on one side of the first crushing wheel (22). The first crushing wheel (22) and the second crushing wheel (23) are the same in shape and size. A fine grinding assembly (3) is provided at the bottom of the primary crushing assembly (2). The fine grinding assembly (3) includes multiple fine grinding rollers (31). 31) The two adjacent fine grinding rollers (31) are tangent to each other and are arranged in a horizontal direction. The fine grinding assembly (3) includes a screening assembly (4) at the bottom of the fine grinding assembly (3), a storage box (5) at the bottom of the screening assembly (4), a conveying assembly (6) for conveying large particles of medicine powder back to the hopper (1) on one side of the screening assembly (4), a driving assembly (7) for driving the primary crushing assembly (2) and the fine grinding assembly (3) at the top of the storage box (5), and a dust suppression assembly (8) at the top of the storage box (5).

2. The pulverizer according to claim 1, characterized in that: The drive assembly (7) includes a drive motor (71), which is fixedly mounted on the top of the storage box (5). A drive shaft (72) is coaxially mounted on the output shaft of the drive motor (71). A first conical wheel (73) and a second conical wheel (74) are coaxially mounted on the drive shaft (72). A first gear (24) is coaxially mounted on one end of the first crushing wheel (22), and a second gear (25) is coaxially mounted on one end of the second crushing wheel (23). The first grinding wheel (22) is coaxially provided with a third conical wheel (75), which is coaxially provided with the first conical wheel (73). Multiple grinding rollers (31) are coaxially provided with rotating gears (32), and two adjacent rotating gears (32) are coaxially provided with each other. One of the grinding rollers (31) is coaxially provided with a fourth conical wheel (76), which is coaxially provided with the second conical wheel (74).

3. A pulverizer according to claim 2, characterized in that: The screening component (4) includes a first screen (41) and a second screen (42). A support frame (43) is provided on the top of the storage box (5). The first screen (41) and the second screen (42) are both set on the support frame (43). The first screen (41) is in the shape of an inverted V. A collection plate (44) is inclined on both sides of the first screen (41). A conveying plate (45) is connected to one end of the collection plate (44). The conveying plate (45) is inclined. The second screen (42) is the same shape and size as the first screen (41). The second screen (42) is set at the bottom of the first screen (41). A vibration generator (46) is provided on both sides of the first screen (41) and the second screen (42). A plurality of springs (47) are provided at the bottom of the first screen (41) and the second screen (42). The other end of the spring (47) is connected to the support frame (43).

4. A pulverizer according to claim 3, characterized in that: The conveying assembly (6) includes a conveyor belt (61) and a collection box (62). The collection box (62) is located on top of the storage box (5) and has an opening at the top. The collection box (62) is located at the bottom of the conveyor plate (45). A lifting box (63) is connected to one side of the collection box (62), and a feeding box (64) is connected to one side of the hopper (1). The bottom of the conveyor belt (61) is located inside the lifting box (63), and the top of the conveyor belt (61) is located on top of the feeding box (64). A power motor (65) for driving the conveyor belt (61) to rotate is provided at the bottom of the conveyor belt (61).

5. A pulverizer according to claim 1, characterized in that: The dust suppression assembly (8) includes a dust suppression box (81), a fan (82), and a dust suppression pipe (83). The dust suppression box (81) is connected to the top of the storage box (5). The fan (82) is located on the top of the storage box (5). The air inlet of the fan (82) is connected to the dust suppression box (81). One end of the dust suppression pipe (83) is connected to the top of the hopper (1). The other end of the dust suppression pipe (83) is connected to the dust suppression box (81). A filter plate (84) is provided inside the dust suppression box (81). The filter plate (84) is located between the air inlet of the fan (82) and the dust suppression box (81). A discharge plate (85) is provided at the bottom of the dust suppression box (81).

6. A pulverizer according to claim 5, characterized in that: The dust collection box (81) has a first mounting groove (86) on one side, the filter plate (84) is inserted into the first mounting groove (86), the dust collection box (81) has a second mounting groove (87) at the bottom, and the discharge plate (85) is inserted into the second mounting groove (87).

7. A pulverizer according to claim 1, characterized in that: The top of the hopper (1) is hinged with a cover plate (11), and a handle (12) is provided on the cover plate (11).

8. A pulverizer according to claim 7, characterized in that: A sealing ring (13) is provided on the cover plate (11).

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