Medicine production powder preparation device

Abstract

The application discloses a medicine powder preparation device for medicine production, which comprises a tank body, two groups of rotating sealing structures are communicated with the outer sides of the two ends of the tank body, an air extraction pipe is communicated with the top of each of the two groups of rotating sealing structures, a dust filtering assembly is communicated with the other end of the air extraction pipe, a gas blowing pipe is communicated with the bottom end of each of the two groups of rotating sealing structures, an air extraction pump is communicated with the other end of the gas blowing pipe, and a discharge valve is communicated with one side of the gas blowing pipe. The medicine powder is finely graded through the first-stage filter cartridge, the second-stage filter cartridge and the third-stage filter cartridge, is conveniently preliminarily broken through the crushing roller, is then secondarily ground and finally ground through the grinding roller, is gradually ground, and finally qualified powder meeting the needs is produced, so that the powder production process and flow are shortened and auxiliary work is facilitated. The first-stage filter cartridge, the second-stage filter cartridge and the third-stage filter cartridge are gradually distributed and are used for screening and discharging, so that auxiliary work is facilitated.

Description

Technical Field

[0001] This invention relates to the field of pharmaceutical powder preparation technology, specifically to the preparation of pharmaceutical powders. Background Technology

[0002] Pharmaceutical powder preparation is a core step in the production of pharmaceutical solid dosage forms. It must strictly adhere to GMP standards and involves processes such as raw material pretreatment, efficient crushing and grinding, precise sieving and grading, uniform mixing, and granulation and drying as needed. This process transforms the active pharmaceutical ingredient and excipients into a powder with controllable particle size, meeting purity standards, uniform mixing, no cross-contamination, and retaining the activity of the active ingredients. Throughout the process, particle size, moisture, microorganisms, and impurities are strictly controlled to meet the raw material requirements for the production of tablets, capsules, powders, inhalers, and other formulations.

[0003] In the preparation of pharmaceutical powders, the raw materials need to be pulverized to achieve a suitable particle size. This is usually done using a pulverizing and grinding device. During the pulverizing process, additional sieving is required, and unqualified materials need to be pulverized again, which adds a certain number of steps. Furthermore, the materials need to be mixed evenly. Traditional pharmaceutical powder preparation equipment has low pulverizing efficiency, is prone to screen clogging, and is difficult to sieve and remove qualified materials step by step. In addition, the extremely fine powder generated during the pulverizing process is easily blown away when the equipment is turned on, making it difficult to separate. Based on this, a new pharmaceutical powder preparation method is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a pharmaceutical powder preparation apparatus for pharmaceutical production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pharmaceutical powder preparation device for pharmaceutical production, comprising a tank body, two sets of rotating sealing structures connected to the outer sides of both ends of the tank body, a suction pipe connected to the top of each set of rotating sealing structures, a dust filter assembly connected to the other end of each suction pipe, a blowing pipe connected to the bottom of each set of rotating sealing structures, a suction pump connected to the other end of each blowing pipe, a discharge valve connected to one side of each blowing pipe, several supporting bearings sleeved on the outer side of the tank body, a support frame sleeved on the outer side of each supporting bearing, a driven gear ring fixedly sleeved on the outer side of the tank body, a driving gear meshing on the outer side of the driven gear ring, a transmission gearbox connected to one side of the driving gear, a servo motor connected to the input end of the transmission gearbox, several fan-shaped annular grooves opened on the outer sides of both ends of the tank body, a guide shroud connected to the outer side of each fan-shaped annular groove, an annular cover connected to the outer side of each guide shroud, a discharge pipe connected to the bottom of each annular cover, and the two ends of the tank body... The tank is internally fixed with a guide cone, two sets of threaded plates, and three fixed partitions. A double-headed crushing motor is fixedly installed in the middle of the three partitions. Crushing rollers are installed at both ends of the double-headed crushing motor. Several support columns are fixedly installed on the inner walls of both ends of the tank. A three-stage filter cartridge is fixedly installed at the opposite ends of the support columns. Mounting plates are fixedly installed at both ends of the three-stage filter cartridge. A two-stage filter cartridge is sleeved inside the three-stage filter cartridge. A first-stage filter cartridge is sleeved inside the two-stage filter cartridge. A drive gear is fixedly sleeved on the outer side of the opposite end of the crushing roller. Several driven gears mesh on the outer side of the drive gear. Grinding rollers are fixedly installed on the opposite side of the driven gears. A sealing bearing is sleeved inside the opposite end of the first-stage filter cartridge and the mounting plate. A rotary seal is provided on one side of the sealing bearing. An inlet pipe is sleeved inside the sealing bearing. A sealing cylinder is sealed at the top of the inlet pipe away from the first-stage filter cartridge.

[0006] Preferably, the two sets of rotating sealing structures are linearly arranged and evenly symmetrically distributed on the outside of the tank. Each rotating sealing structure includes several guide pipes and concave rings. The guide pipes are circumferentially distributed on the outside of the tank and are fixedly inserted through the tank and connected to the inside of the tank. A support ring plate is fixedly sleeved on the outside of the guide pipe. A sealing bearing four is movably sleeved on the top of the support ring plate, and a sealing bearing three is movably sleeved on the bottom of the support ring plate. The opposite sides of the sealing bearing three and the sealing bearing four are sleeved on the inside of the concave ring. A sealing cone is movably sleeved on the opposite sides of the support ring plate, the sealing bearing three, and the sealing bearing four. The opposite sides of the sealing cone are fixedly installed on the inner wall of the concave ring. A rotating sealing ring three is movably installed on the opposite side of the sealing bearing three. The suction pipe and the blowing pipe are both connected to the opposite sides of the concave ring, the support ring plate, and the rotating sealing ring three.

[0007] Preferably, the dust filtration assembly includes a filter canister and a cover plate. The cover plate is fixedly sleeved on the outside of the extraction pipe. The cover plate is fixed to the top of the filter canister by a flange and bolts. An exhaust pipe is connected to one side of the top of the filter canister, and a dust discharge pipe is connected to one side of the bottom of the filter canister. Valves are installed inside both the exhaust pipe and the dust discharge pipe. A flow guide seat is fixedly installed at the bottom of the inner cavity of the filter canister. A fine dust filter bag is fixedly installed inside the filter canister by a bracket. The top of the fine dust filter bag is fixedly sleeved on the outside of the extraction pipe by a clamp. The exhaust pipe is located at the top of the fine dust filter bag, and the dust discharge pipe is located on one side of the flow guide seat.

[0008] Preferably, the gearbox and servo motor are both fixed to the ground by a bracket, the support bearings are linearly and evenly distributed on the outside of the tank, and the bottom of the support frame is fixed to the ground by bolts.

[0009] Preferably, the fan-shaped grooves are evenly distributed circumferentially on the outer sides of both ends of the tank body. Several sets of mounting screw holes are opened on the outer sides of both ends of the tank body. The positions of the mounting screw holes correspond to the positions of the fan-shaped grooves. The flow guide is fixed to the outer side of the mounting screw holes by bolts. Sealing strips are provided on the opposite sides of the flow guide and the tank body. A second sealing bearing is sleeved on the outer side of the flow guide. A second rotating seal is provided on one side of the second sealing bearing. Both the second sealing bearing and the second rotating seal are sleeved on the inner side of the ring cover. The flow guiding position of the flow guide cone corresponds to the discharge position of the fan-shaped groove.

[0010] Preferably, the two sets of threaded plates and supports are evenly distributed on both sides of the fixed partition in an axisymmetric manner, and the supports are evenly distributed on the opposite sides of the tank and the three-stage filter cartridge in a spiral manner.

[0011] Preferably, both ends of the secondary filter cartridge and the primary filter cartridge are fixedly installed on opposite sides of the mounting plate. The size of the crushing roller is adapted to the size of the primary filter cartridge. The crushing roller is movably installed through the inner side of the fixed partition and the mounting plate via bearings. The grinding roller is movably installed through the opposite side of the mounting plate via bearings. The driven toothed disc and the grinding roller are evenly distributed circumferentially on the outer side of the crushing roller.

[0012] Preferably, the grinding rollers are divided into two groups, which are located on opposite sides of the tertiary filter cartridge and the secondary filter cartridge, as well as the secondary filter cartridge and the primary filter cartridge. The pore size of the tertiary filter cartridge is smaller than that of the secondary filter cartridge, and the pore size of the secondary filter cartridge is smaller than that of the primary filter cartridge. The inlet pipe, the grinding rollers, and the primary filter cartridge are all concentric circles.

[0013] Preferably, the outer side of the inlet pipe extends through both ends of the tank via a bearing, the outer side of the first rotary seal is fixedly installed on the inner side of the first-stage filter cartridge, one side of the first rotary seal is in movable contact with the first sealing bearing and one end of the inlet pipe, the outer side of the inlet pipe is fixed vertically by a bracket, and valves are installed inside the air extraction pipe, the air blowing pipe and the discharge pipe.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the equipment is in use, the sealing cylinder is opened and the raw material to be processed is put into the inner side of the first-stage filter cylinder through the inlet pipe. Then the sealing cylinder is closed and the double-head crushing motor is started to drive the crushing roller to rotate. After the crushing roller rotates, the raw material inside the first-stage filter cylinder is broken. The driven toothed disc drives the grinding roller to rotate and continue to grind the raw material. Finally, the material that meets the aperture of the third-stage filter cylinder falls into the inner side of the tank. At this time, the servo motor is started and drives the driven toothed ring to rotate through the gearbox and the drive gear, which in turn drives the tank to rotate. This causes the tank to rotate under the rolling support of the support bearing and the support frame. The raw material at the bottom of the inner cavity of the tank is guided by the spiral push of the threaded plate through the guide cone to the inner side of the fan ring groove, and then through the guide hood and the ring hood, and finally discharged through the guide hood. The overall operation efficiency is high, and it can realize step-by-step powdering and finally directly discharge qualified powder. As the tank rotates, the overall cylindrical screen powdering becomes dynamic, reducing the screen clogging. 2. During operation, the air pump starts and blows clean air into the interior of the rotating sealing structure through the air blowing pipe. The rotating support of the rotating sealing structure allows the air to be introduced into the interior of the tank, blowing up the powder being prepared inside the tank to reduce accumulation. By adjusting the air blowing size of the air pump, the extremely fine dust powder is made to float inside the tank and enter the interior of the dust filter assembly through the air blowing pipe. This collects the dust generated during the powder making process, making it convenient to directly sieve and utilize the extremely fine powder, reducing the dust from the powder and improving the powder making efficiency. 3. The powder is screened through the primary, secondary, and tertiary filter cartridges, resulting in progressively finer powder. This facilitates initial cell wall breaking by the crushing rollers, followed by secondary and final grinding by the grinding rollers. This step-by-step powdering process produces qualified powder that meets the required specifications, reducing the powdering process and streamlining the workflow. The powder is also screened and discharged through the progressively distributed primary, secondary, and tertiary filter cartridges, which facilitates auxiliary operations. Attached Figure Description

[0015] Figure 1 This is a front-view stereoscopic structural diagram of the present invention.

[0016] Figure 2 This is a rear-view stereoscopic view of the structure of the present invention.

[0017] Figure 3This is a front-view stereoscopic sectional structural diagram of the present invention.

[0018] Figure 4 This is a front sectional view of the internal structure of the present invention.

[0019] Figure 5 This is a schematic diagram of the internal structure of the present invention, viewed from the right side.

[0020] Figure 6 This is a schematic diagram of the internal structure of the present invention, viewed from the left side.

[0021] Figure 7 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0022] Figure 8 For the present invention Figure 4 Enlarged structural diagram at point B.

[0023] Figure 9 For the present invention Figure 4 Enlarged structural diagram at point C.

[0024] Figure 10 For the present invention Figure 5 Enlarged structural diagram at point D.

[0025] Figure 11 For the present invention Figure 5 Enlarged structural diagram at point E in the middle.

[0026] In the diagram: 1. Tank body; 2. Support bearing; 3. Support frame; 4. Rotary sealing structure; 401. Guide pipe; 402. Concave ring; 403. Support ring plate; 404. Sealing bearing three; 405. Rotary sealing ring three; 406. Sealing bearing four; 407. Sealing cone; 5. Extraction pipe; 6. Dust filter assembly; 601. Filter tank; 602. Exhaust pipe; 603. Powder discharge pipe; 604. Guide seat; 605. Fine dust filter bag; 606. Cover plate; 7. Extraction pump; 8. Air blowing pipe; 9. Discharge valve; 10. Fan ring groove; 11. Mounting screw hole; 12. Inlet pipe; 13. Sealing cylinder; 14. Ring cover; 15. Discharge pipe; 16. Driven gear ring; 17. Drive gear; 18. Gearbox; 19. Servo motor; 20. Fixed partition plate; 21. Double-head crushing motor; 22. Crushing roller; 23. Grinding roller; 24. Threaded plate; 25. Support column; 26. Driven gear disc; 27. Drive gear disc; 28. Guide cone; 29. ​​Mounting plate; 30. Three-stage filter cartridge; 31. Two-stage filter cartridge; 32. One-stage filter cartridge; 33. Sealed bearing I; 34. Rotary seal I; 35. Guide cover; 36. Sealed bearing II; 37. Rotary seal II. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-11 This invention provides a technical solution: a pharmaceutical powder preparation device for pharmaceutical production, comprising a tank 1, with two sets of rotating sealing structures 4 connected to the outer sides of both ends of the tank 1, and a suction pipe 5 connected to the top of each set of rotating sealing structures 4. A dust filter assembly 6 is connected to the other end of each suction pipe 5, and a blowing pipe 8 is connected to the bottom of each set of rotating sealing structures 4. A suction pump 7 is connected to the other end of each blowing pipe 8, and a discharge valve 9 is connected to one side of each blowing pipe 8. Several supporting bearings 2 are sleeved on the outer side of the tank 1, and supporting bearings 2 are sleeved on the outer side of each supporting bearing. A driven gear ring 16 is fixedly sleeved on the outer side of the frame 3 and the tank body 1. A driving gear 17 meshes with the outer side of the driven gear ring 16. A transmission gearbox 18 is driven and connected to one side of the driving gear 17. A servo motor 19 is driven and connected to the input end of the transmission gearbox 18. Several fan-shaped annular grooves 10 are opened on the outer side of both ends of the tank body 1. A guide shroud 35 is connected to the outer side of the fan-shaped annular groove 10. An annular cover 14 is connected to the outer side of the guide shroud 35. A discharge pipe 15 is connected to the bottom of the annular cover 14. A guide cone 28 is fixedly installed inside both ends of the tank body 1. Two sets of threaded plates 24 are fixedly installed inside the tank body 1. Three fixed partitions 20 are fixedly installed inside the tank body 1. A double-headed crushing motor 21 is fixedly installed in the middle of the three fixed partitions 20. Crushing rollers 22 are installed at both ends of the double-headed crushing motor 21. Several support columns 25 are fixedly installed on the inner walls of both ends of the tank body 1. A three-stage filter cartridge 30 is fixedly installed at the opposite ends of the support columns 25. Mounting plates 29 are fixedly installed at both ends of the three-stage filter cartridge 30. A two-stage filter cartridge 31 is sleeved inside the three-stage filter cartridge 30. A primary filter cartridge 32 is sleeved on the side. A drive gear disc 27 is fixedly sleeved on the outer side of the opposite end of the crushing roller 22. Several driven gear discs 26 are meshed on the outer side of the drive gear disc 27. A grinding roller 23 is fixedly installed on the opposite side of the driven gear disc 26. A sealing bearing 33 is sleeved inside the opposite end of the primary filter cartridge 32 and the mounting plate 29. A rotary seal 34 is provided on one side of the sealing bearing 33. An inlet pipe 12 is sleeved on the inner side of the sealing bearing 33. A sealing cylinder 13 is sealed on the top of the end of the inlet pipe 12 away from the primary filter cartridge 32.

[0029] The working principle of the above technical solution is as follows: During use, clean air is connected to the input end of the air pump 7, and the output ends of the discharge pipe 15 and the dust filter assembly 6 are connected to downstream access equipment. Then, the sealing cylinder 13 is opened, and the raw material to be processed is fed into the inner side of the primary filter cartridge 32 through the inlet pipe 12. The sealing cylinder 13 is then closed, and the double-headed crushing motor 21 is started to drive the crushing roller 22 to rotate. After the crushing roller 22 rotates, it breaks down the raw material inside the primary filter cartridge 32. The crushed material, conforming to the pore size of the primary filter cartridge 32, falls onto the opposite side of the primary filter cartridge 32 and the secondary filter cartridge 31. The rear crushing roller 22 actively drives the meshing driven gear disc 26 to rotate via the drive gear disc 27. The driven gear disc 26 drives the grinding roller 23 to rotate, grinding the raw material that falls onto the opposite side of the secondary filter cartridge 31 and the primary filter cartridge 32. The raw material that meets the aperture of the secondary filter cartridge 31 falls onto the opposite side of the secondary filter cartridge 31 and the tertiary filter cartridge 30. At the same time, the finer grinding roller 23 rotates to continue grinding the raw material there. Finally, the raw material that meets the aperture of the tertiary filter cartridge 30 falls onto the inner side of the tank 1. At this time, the servo motor 19 starts and drives the gearbox 18 and the drive gear 17 to rotate. The driven gear ring 16 rotates, which in turn drives the tank body 1 to rotate. This causes the tank body 1 to rotate under the rolling support of the support bearing 2 and the support frame 3. The raw material at the bottom of the inner cavity of the tank body 1 is guided by the spiral push of the threaded plate 24 through the guide cone 28 to the inner side of the fan ring groove 10, and then guided by the guide shroud 35 and the ring shroud 14, finally being discharged through the guide shroud 35. The overall operation efficiency is high, enabling step-by-step powdering and ultimately directly discharging qualified powder. As the tank body 1 rotates, the overall cylindrical screen powdering process becomes dynamic, reducing screen clogging. Furthermore, during the operation, air extraction is performed. Pump 7 starts by blowing clean air into the interior of the rotating sealing structure 4 through the air blowing pipe 8. The rotating support of the rotating sealing structure 4 allows the air to be introduced into the interior of the tank 1, blowing up the powder being prepared inside the tank 1 and reducing accumulation. By adjusting the blowing force of the suction pump 7, the extremely fine dust powder is made to float inside the tank 1 and enter the interior of the dust filter assembly 6 through the air extraction pipe 5. This collects the dust generated during the powder preparation process, making it easy to directly sieve and utilize the extremely fine powder, reducing the spillage of the powder, increasing the effectiveness of use, and facilitating collection.

[0030] In another implementation scheme, such as Figures 1-9As shown, two sets of rotating sealing structures 4 are linearly arranged and evenly and symmetrically distributed on the outside of the tank body 1. Each rotating sealing structure 4 includes several guide pipes 401 and concave rings 402. The guide pipes 401 are circumferentially distributed on the outside of the tank body 1, and are fixedly inserted through the tank body 1 and connected to its interior. A support ring plate 403 is fixedly sleeved on the outside of the guide pipe 401. A sealing bearing 406 is movably sleeved on the top of the support ring plate 403, and a sealing bearing 404 is movably sleeved on the bottom of the support ring plate 403. The opposite sides of the sealing bearing 404 and the sealing bearing 406 are sleeved on the inner side of the concave ring 402. The opposite sides of the support ring plate 403, the sealing bearing 404 and the sealing bearing 406 are movably sleeved with the sealing cone 407. The opposite side of the sealing cone 407 is fixedly installed on the inner wall of the concave ring 402. The opposite side of the sealing bearing 404 is movably installed with the rotating sealing ring 405. The suction pipe 5 and the blowing pipe 8 are both connected to the opposite sides of the concave ring 402, the support ring plate 403 and the rotating sealing ring 405.

[0031] When the airflow enters through the air blowing pipe 8, it first enters the opposite side of the concave ring 402 and the support ring plate 403. At this time, the airflow is sealed and limited by the rotating sealing ring 405 and the sealing cone 407, and is guided into the interior of the tank 1 through the guide pipe 401. The airflow is evenly distributed around the circumference of the tank 1 by the guide pipe 401. Finally, the airflow is led out through the guide pipe 401 in the upper part of the tank 1 to the opposite side of the concave ring 402 and the support ring plate 403. At this time, the airflow is led out through the suction pipe 5 to... The dust filter assembly 6 intercepts dust internally, while the sealing bearings 404 and 406 provide rolling support for the opposite sides of the concave ring 402 and the support plate 403 to ensure their position. Rotary sealing is achieved by rotating the sealing ring 405 and the sealing cone 407, allowing the airflow to pass through the tank 1 during the rolling process. This facilitates rolling operations and makes the equipment easy to use. Furthermore, with modifications, the airflow can be replaced with water flow, which is convenient for mixing and preparing liquid agents and increases the adaptability of the equipment.

[0032] In another implementation scheme, such as Figures 1-10 As shown, the dust filtration assembly 6 includes a filter canister 601 and a cover plate 606. The cover plate 606 is fixedly sleeved on the outside of the extraction pipe 5. The cover plate 606 is fixed to the top of the filter canister 601 by a flange and bolts. An exhaust pipe 602 is connected to one side of the top of the filter canister 601, and a dust discharge pipe 603 is connected to one side of the bottom of the filter canister 601. Valves are installed inside both the exhaust pipe 602 and the dust discharge pipe 603. A flow guide seat 604 is fixedly installed at the bottom of the inner cavity of the filter canister 601. A fine dust filter bag 605 is fixedly installed inside the filter canister 601 by a bracket. The top of the fine dust filter bag 605 is fixedly sleeved on the outside of the extraction pipe 5 by a clamp. The exhaust pipe 602 is located at the top of the fine dust filter bag 605, and the dust discharge pipe 603 is located on one side of the flow guide seat 604.

[0033] When the airflow is introduced into the filter canister 601 through the suction pipe 5, the airflow is at the bottom of the fine dust filter bag 605. At this time, the exhaust pipe 602 is opened, and the airflow is discharged to the input end of the suction pump 7 through the rotating sealing ring 405 and the exhaust pipe 602, forming an airflow circulation. The pharmaceutical powder falls to the outside of the guide seat 604 under the interception of the fine dust filter bag 605, and gradually accumulates through the guide seat 604. Finally, the powder discharge pipe 603 is opened periodically to collect the powder. This method facilitates the collection of powder floating in the airflow, making it convenient for use, reducing powder floating, simplifying the powder preparation process, and improving powder production efficiency.

[0034] In another implementation scheme, such as Figures 1-6 As shown, the gearbox 18 and the servo motor 19 are both fixed to the ground by brackets, the support bearings 2 are linearly and evenly distributed on the outside of the tank body 1, and the bottom of the support frame 3 is fixed to the ground by bolts.

[0035] The servo motor 19 rotates and drives the drive gear 17 through the gearbox 18. The drive gear 17 drives the driven gear ring 16, which in turn drives the tank 1 to rotate. This facilitates the rotation of the tank 1. The tank 1 rolls under the support of the support bearing 2 and the support frame 3, which facilitates mixing during the powder making process, reduces clogging, facilitates dynamic powder making, improves efficiency, overcomes the shortcomings of traditional powder making equipment, and enhances the effect of use.

[0036] In another implementation scheme, such as Figures 1-11 As shown, the fan-shaped grooves 10 are evenly distributed around the outer sides of both ends of the tank body 1. Several sets of mounting screw holes 11 are provided on the outer sides of both ends of the tank body 1. The positions of the mounting screw holes 11 correspond to the positions of the fan-shaped grooves 10. The flow guide shroud 35 is fixed to the outer side of the mounting screw holes 11 by bolts. Sealing strips are provided on the opposite sides of the flow guide shroud 35 and the tank body 1. A sealing bearing 36 is sleeved on the outer side of the flow guide shroud 35. A rotating seal 37 is provided on one side of the sealing bearing 36. Both the sealing bearing 36 and the rotating seal 37 are sleeved on the inner side of the ring cover 14. The flow guide position of the flow guide cone 28 corresponds to the discharge position of the fan-shaped grooves 10.

[0037] The function of the fan-shaped groove 10 is to uniformly discharge the powder as the tank 1 rotates. The circumferential discontinuous groove provides support for the position of the inlet pipe 12. The mounting screw hole 11 facilitates the insertion of the guide shroud 35 into the outside of the tank 1. The guide shroud 35 rotates with the tank 1. The outer side maintains a relatively stable position for the ring shroud 14 through the sealing bearing 36 and the rotating seal 37, so that the positions of the ring shroud 14 and the discharge pipe 15 are stable, which facilitates powder discharge and makes it easy to coordinate operations.

[0038] In another implementation scheme, such as Figures 1-6As shown, the two sets of threaded plates 24 and support columns 25 are symmetrically and evenly distributed on both sides of the fixed partition 20, and the support columns 25 are evenly distributed in a spiral pattern on the opposite sides of the tank 1 and the three-stage filter cartridge 30.

[0039] The threaded plate 24 and the support column 25 are distributed on the inner side of the tank body 1. The fixed partition 20 divides the inside of the tank body 1 into two areas, which facilitates the expansion of the two working areas and improves the working efficiency. The threaded plate 24 in the two areas can rotate to push the powder out. The support column 25 can support the outside of the three-stage filter cartridge 30, which increases the usability of the structure.

[0040] In another implementation scheme, such as Figures 1-11 As shown, both ends of the secondary filter cartridge 31 and the primary filter cartridge 32 are fixedly installed on opposite sides of the mounting plate 29. The specifications and dimensions of the crushing roller 22 are adapted to the specifications and dimensions of the primary filter cartridge 32. The crushing roller 22 is movably installed through the bearing on the inner side of the fixed partition plate 20 and the mounting plate 29. The grinding roller 23 is movably installed through the bearing on the opposite side of the mounting plate 29. The driven toothed disc 26 and the grinding roller 23 are evenly distributed circumferentially on the outer side of the crushing roller 22.

[0041] The three-stage filter cartridge 30, the two-stage filter cartridge 31, and the one-stage filter cartridge 32 are nested together and fixed by the mounting plate 29. In the case of a relatively fine filter screen structure, column support structures can be added to the opposite sides of the three-stage filter cartridge 30, the two-stage filter cartridge 31, and the one-stage filter cartridge 32 to increase the stress strength of the structural components. The outer side of the crushing roller 22 is mounted on the inner side of the fixed partition plate 20 and the mounting plate 29 through bearings, which helps to increase the structural strength, maintain the structural stability, and reduce deflection. The grinding roller 23 is rolled and mounted inside the mounting plate 29 through bearings, which helps to stabilize the structure and facilitates rolling support. When the crushing roller 22 rotates, it drives the driven toothed disc 26 through the drive toothed disc 27, and then transmits the rotational force through the crushing roller 22 to the grinding roller 23, which facilitates auxiliary operation and increases the use effect. The specifications and dimensions of the grinding roller 23 are adapted to the specifications and dimensions of the relative space of the three-stage filter cartridge 30, the two-stage filter cartridge 31, and the one-stage filter cartridge 32.

[0042] In another implementation scheme, such as Figures 1-11 As shown, the grinding rollers 23 are divided into two groups. The two groups of grinding rollers 23 are located on opposite sides of the tertiary filter cartridge 30 and the secondary filter cartridge 31, as well as the secondary filter cartridge 31 and the primary filter cartridge 32. The pore diameter of the tertiary filter cartridge 30 is smaller than that of the secondary filter cartridge 31, and the pore diameter of the secondary filter cartridge 31 is smaller than that of the primary filter cartridge 32. The inlet pipe 12, the grinding rollers 22, and the primary filter cartridge 32 are all concentric circles.

[0043] The blades of the two sets of grinding rollers 23 are divided into fine and more precise ones. The grinding rollers 23 located on the opposite sides of the tertiary filter cartridge 30 and the secondary filter cartridge 31 have more precise blades. The powder screened from the primary filter cartridge 32 to the secondary filter cartridge 31 and then to the tertiary filter cartridge 30 is progressively finer. In order to adapt to the progressive operation, the grinding rollers 23 located on the opposite sides of the tertiary filter cartridge 30 and the secondary filter cartridge 31 are set with a more precise grinding structure, which is convenient for cooperation. It is convenient to perform preliminary cell wall breaking through the crushing roller 22, then perform secondary grinding and powdering through the grinding rollers 23 located inside the primary filter cartridge 32 and the secondary filter cartridge 31, and finally perform final grinding and powdering through the grinding rollers 23 located on the opposite sides of the tertiary filter cartridge 30 and the secondary filter cartridge 31. This progressive powdering process produces qualified powder that meets the requirements, reduces the powdering process and flow, and facilitates auxiliary operations. The powder is screened and discharged through the progressively distributed primary filter cartridge 32, secondary filter cartridge 31 and tertiary filter cartridge 30, which is convenient for auxiliary operations.

[0044] In another implementation scheme, such as Figures 1-11 As shown, the outer side of the inlet pipe 12 passes through both ends of the tank body 1 via a bearing. The outer side of the rotary seal 34 is fixedly installed on the inner side of the primary filter cartridge 32. One side of the rotary seal 34 is in contact with the sealing bearing 33 and one end of the inlet pipe 12. The outer side of the inlet pipe 12 is fixed vertically by a bracket. Valves are installed inside the suction pipe 5, the blowing pipe 8, and the discharge pipe 15.

[0045] The inlet pipe 12 is fixed by the structure. When the tank body 1 rotates, the inlet pipe 12 is kept in a stable position by the sealed bearing 33 and the rotary seal 34, which facilitates auxiliary operations. The valve facilitates the opening and closing of the suction pipe 5, the blowing pipe 8 and the discharge pipe 15, which makes it easy to change the connection operation. For example, the suction pipe 5 and the blowing pipe 8 can be closed and the powder can be discharged through the discharge valve 9, or the water flow can be modified and discharged through the discharge valve 9, in accordance with the process and flow operation.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pharmaceutical powder preparation apparatus for pharmaceutical production, comprising a tank (1), characterized in that: Two sets of rotating sealing structures (4) are connected to the outer sides of both ends of the tank (1). The top of each set of rotating sealing structures (4) is connected to an air extraction pipe (5). The other end of the air extraction pipe (5) is connected to a dust filter assembly (6). The bottom of each set of rotating sealing structures (4) is connected to an air blowing pipe (8). The other end of the air blowing pipe (8) is connected to an air pump (7). One side of the air blowing pipe (8) is connected to a discharge valve (9). Several support bearings (2) are sleeved on the outer side of the tank (1). A support frame (3) is sleeved on the outer side of the support bearings (2). A driven toothed ring (16) is fixedly sleeved on the outer side of the tank (1). The driven gear ring (16) is meshed with a drive gear (17) on its outer side. A transmission gearbox (18) is connected to one side of the drive gear (17). A servo motor (19) is connected to the input end of the transmission gearbox (18). Several fan-shaped grooves (10) are opened on the outer sides of both ends of the tank body (1). A flow guide shroud (35) is connected to the outer side of the fan-shaped grooves (10). A ring shroud (14) is connected to the outer side of the flow guide shroud (35). A discharge pipe (15) is connected to the bottom of the ring shroud (14). A flow guide cone (28) is fixedly installed inside both ends of the tank body (1). Two sets of [unclear] are fixedly installed inside the tank body (1). The tank body (1) is fitted with a threaded plate (24). Three fixed partitions (20) are fixedly installed inside the tank body (1). A double-headed crushing motor (21) is fixedly installed in the middle of the three fixed partitions (20). Crushing rollers (22) are installed at both ends of the double-headed crushing motor (21). Several support columns (25) are fixedly installed on the inner walls of both ends of the tank body (1). A three-stage filter cartridge (30) is fixedly installed at the opposite ends of the support columns (25). Mounting plates (29) are fixedly installed at both ends of the three-stage filter cartridge (30). A two-stage filter cartridge (31) is sleeved inside the three-stage filter cartridge (30). A first-stage filter cartridge (31) is sleeved inside the two-stage filter cartridge (31). The filter cartridge (32) has a drive gear disc (27) fixedly sleeved on the outer side of the opposite end of the crushing roller (22). The drive gear disc (27) has several driven gear discs (26) meshing on the outer side of the drive gear disc (27). The grinding roller (23) is fixedly installed on the opposite side of the driven gear disc (26). The first-stage filter cartridge (32) and the mounting plate (29) have a sealing bearing (33) sleeved inside the opposite end. A rotary seal (34) is provided on one side of the sealing bearing (33). An inlet pipe (12) is sleeved on the inner side of the sealing bearing (33). A sealing cylinder (13) is sealed on the top of the inlet pipe (12) away from the first-stage filter cartridge (32).

2. The pharmaceutical powder preparation apparatus for pharmaceutical production according to claim 1, characterized in that: Two sets of the rotating sealing structures (4) are linearly arranged and evenly symmetrically distributed on the outside of the tank body (1). The rotating sealing structure (4) includes several guide pipes (401) and concave rings (402). The guide pipes (401) are circumferentially distributed on the outside of the tank body (1). The guide pipes (401) are fixedly inserted through the tank body (1) and connected to the inside of the tank body (1). A support ring plate (403) is fixedly sleeved on the outside of the guide pipe (401). A sealing bearing four (406) is movably sleeved on the top of the support ring plate (403), and a sealing bearing three (404) is movably sleeved on the bottom of the support ring plate (403). The opposite sides of the three sealed bearings (404) and the four sealed bearings (406) are sleeved on the inner side of the concave ring (402). The opposite sides of the support ring plate (403), the three sealed bearings (404) and the four sealed bearings (406) are movably sleeved with sealing cones (407). The opposite sides of the sealing cones (407) are fixedly installed on the inner wall of the concave ring (402). The opposite side of the three sealed bearings (404) is movably installed with a rotating sealing ring (405). The suction pipe (5) and the blowing pipe (8) are both connected to the opposite sides of the concave ring (402), the support ring plate (403) and the rotating sealing ring (405).

3. The pharmaceutical powder preparation apparatus for pharmaceutical production according to claim 1, characterized in that: The dust filtration assembly (6) includes a filter canister (601) and a cover plate (606). The cover plate (606) is fixedly sleeved on the outside of the suction pipe (5). The cover plate (606) is fixed to the top of the filter canister (601) by a flange and bolts. An exhaust pipe (602) is connected to one side of the top of the filter canister (601), and a dust discharge pipe (603) is connected to one side of the bottom of the filter canister (601). The exhaust pipe (602) and the dust discharge pipe (603) are connected to each other. Each part is equipped with a valve. A flow guide seat (604) is fixedly installed at the bottom of the inner cavity of the filter canister (601). A fine dust filter bag (605) is fixedly installed inside the filter canister (601) by a bracket. The top of the fine dust filter bag (605) is fixedly sleeved on the outside of the suction pipe (5) by a clamp. The exhaust pipe (602) is located at the top of the fine dust filter bag (605). The dust discharge pipe (603) is located on one side of the flow guide seat (604).

4. The pharmaceutical powder preparation apparatus for pharmaceutical production according to claim 1, characterized in that: The gearbox (18) and servo motor (19) are both fixed to the ground by brackets. The support bearings (2) are linearly and evenly distributed on the outside of the tank (1). The bottom of the support frame (3) is fixed to the ground by bolts.

5. The pharmaceutical powder preparation apparatus for pharmaceutical production according to claim 1, characterized in that: The fan-shaped groove (10) is evenly distributed on the outer side of both ends of the tank body (1). Several sets of mounting screw holes (11) are opened on the outer side of both ends of the tank body (1). The position of the mounting screw holes (11) corresponds to the position of the fan-shaped groove (10). The flow guide (35) is fixed to the outer side of the mounting screw hole (11) by bolts. The flow guide (35) and the tank body (1) are provided with sealing strips on opposite sides. The outer side of the flow guide (35) is fitted with a sealing bearing (36). A rotating seal (37) is provided on one side of the sealing bearing (36). The sealing bearing (36) and the rotating seal (37) are both fitted on the inner side of the ring cover (14). The flow guide position of the flow guide cone (28) corresponds to the discharge position of the fan-shaped groove (10).

6. The pharmaceutical powder preparation apparatus for pharmaceutical production according to claim 1, characterized in that: Both sets of threaded plates (24) and support columns (25) are symmetrically and evenly distributed on both sides of the fixed partition (20), and the support columns (25) are evenly distributed in a spiral pattern on the opposite sides of the tank (1) and the three-stage filter cartridge (30).

7. The pharmaceutical powder preparation apparatus for pharmaceutical production according to claim 1, characterized in that: The two ends of the secondary filter cartridge (31) and the primary filter cartridge (32) are fixedly installed on opposite sides of the mounting plate (29). The size of the crushing roller (22) is adapted to the size of the primary filter cartridge (32). The crushing roller (22) is movably installed through the bearing on the inner side of the fixed partition plate (20) and the mounting plate (29). The grinding roller (23) is movably installed through the bearing on the opposite side of the mounting plate (29). The driven toothed disc (26) and the grinding roller (23) are evenly distributed circumferentially on the outer side of the crushing roller (22).

8. The pharmaceutical powder preparation apparatus for pharmaceutical production according to claim 1, characterized in that: The grinding rollers (23) are divided into two groups. The two groups of grinding rollers (23) are located on opposite sides of the tertiary filter cartridge (30) and the secondary filter cartridge (31), as well as the secondary filter cartridge (31) and the primary filter cartridge (32). The pore diameter of the tertiary filter cartridge (30) is smaller than that of the secondary filter cartridge (31), and the pore diameter of the secondary filter cartridge (31) is smaller than that of the primary filter cartridge (32). The inlet pipe (12), the grinding roller (22), and the primary filter cartridge (32) are all concentric circles.

9. The pharmaceutical powder preparation apparatus for pharmaceutical production according to claim 1, characterized in that: The outer side of the inlet pipe (12) is movably connected to both ends of the tank body (1) through the bearing. The outer side of the first rotary seal (34) is fixedly installed on the inner side of the first stage filter cartridge (32). One side of the first rotary seal (34) is in movable contact with the first sealing bearing (33) and one end of the inlet pipe (12). The outer side of the inlet pipe (12) is fixed vertically by the bracket. Valves are installed inside the exhaust pipe (5), the blowing pipe (8) and the discharge pipe (15).

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