Stirred tanks and pharmaceutical production lines

Abstract

The utility model discloses a kind of stirring tank and medicine production line, it is related to chemical device technical field, including tank body, stirring device, cleaning device, scraping plate and drive mechanism;Stirring device includes stirring shaft, the stirring blade of stirring shaft is provided, stirring shaft is rotatably set on tank body;Cleaning device is movably installed in the inside of tank body, cleaning device can rotate around stirring shaft, to inject cleaning fluid to tank body inner wall and stirring device;Scraping plate is movably installed in the inside of tank body, and scraping plate end of scraping plate is contacted with tank body inner wall and cooperates;Scraping plate can rotate around stirring shaft, to scrape material to tank body inner wall;Drive mechanism is set on tank body, and drive mechanism can provide driving force for the rotation of cleaning device and scraping plate, there is no cleaning dead angle in tank body, tank body inner wall and stirring blade have no adherend residue, stirring tank inside is cleaned thoroughly, and medicine production line includes stirring tank, can avoid the production of medicine to cause influence, can improve the quality of medicine.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a mixing tank and a pharmaceutical production line. Background Technology

[0002] Currently, most pharmaceutical manufacturers use online cleaning systems (CIP) for cleaning their reaction vessels or fermentation tanks. For example, Chinese utility model patent application CN222057021U describes a method that uses a combination of different numbers of spray balls installed on the top of the tank or at other locations. The cleaning solution is sprayed through these balls to clean the inner surface of the tank and the agitator blades. However, the number of spray balls installed inside the tank should not be excessive. The rotation of the spray balls consumes some of the cleaning solution's power, resulting in insufficient spray force and poor cleaning effect. Often, it fails to achieve thorough cleaning, and residues adhering to the inner wall of the tank or the agitator blades are difficult to remove completely, leading to poor rinsing results.

[0003] Some companies use jet nozzles for cleaning. While the overall cleaning effect is good, the nozzles are cumbersome and complicated because they need to be installed on the tank before cleaning and removed after cleaning. If there are multiple agitators in the tank, cleaning the back of the agitators requires even more precise nozzle installation, making it difficult to implement. Moreover, jet nozzles are limited to a specific spray direction and a limited number, which also creates cleaning blind spots. Utility Model Content

[0004] The purpose of this invention is to provide a mixing tank and a pharmaceutical production line that achieves excellent cleaning results, eliminates dead corners in the tank, removes any residue adhering to the inner wall of the tank and the mixing blades, and thoroughly cleans the interior of the mixing tank, thus solving the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a mixing tank, including a tank body, a stirring device, a cleaning device, a scraper, and a driving mechanism. The stirring device includes a stirring shaft with stirring blades at its first end and a second end rotatably mounted on the tank body. The stirring shaft is used to stir the material inside the tank. The cleaning device is movably installed inside the tank body and can rotate around the stirring shaft to spray cleaning liquid onto the inner wall of the tank and the stirring device. The scraper is movably installed inside the tank body, with its scraping end contacting the inner wall of the tank. The scraper can rotate around the stirring shaft to scrape material from the inner wall of the tank. The driving mechanism is mounted on the tank body and provides driving force for the rotation of the cleaning device and the scraper.

[0007] In some embodiments, the driving mechanism includes a drive motor, a telescopic adjustment device, a cleaning transmission disc, a scraper gear ring, and a main gear. The main body of the drive motor is disposed outside the tank body, and the output end of the drive motor passes through the tank body and extends into the interior of the tank body, with the rotation axis of the output end of the drive motor parallel to the rotation axis of the stirring shaft. The telescopic adjustment device is located outside the tank body and is fixedly connected to the main body of the drive motor. The telescopic adjustment device can drive the drive motor to move so that the output end of the drive motor moves parallel to the rotation axis of the stirring shaft. The cleaning transmission disc is disposed inside the tank body and is coaxially fitted onto the outside of the stirring shaft. The stirring shaft is provided with a first limiting member for axially limiting the movement of the cleaning transmission disc, and the first limiting member is located at the end of the cleaning transmission disc away from the second end. The outer ring of the cleaning transmission disc is provided with a first cleaning gear ring and a second cleaning gear ring, and the first cleaning gear ring is located at the end of the cleaning transmission disc closer to the first end. The second cleaning gear ring is located at the end of the cleaning transmission disc closest to the second end; the cleaning device is mounted on the cleaning transmission disc; the scraping gear ring is coaxially fitted onto the outside of the cleaning transmission disc and rotatably mounted on the inner wall of the tank via a gear ring mounting mechanism; the inner ring of the scraping gear ring is provided with a first scraping gear ring and a second scraping gear ring, and the first scraping gear ring is located at the end of the scraping gear ring closest to the second end, and the second scraping gear ring is located at the end of the scraping gear ring closest to the first end. The second gear ring is aligned with the cleaning second gear ring, and a meshing channel is formed between the scraping second gear ring and the cleaning second gear ring; the scraper plate is disposed on the scraping gear ring; the main gear is fixed to the output end of the drive motor and is located in the meshing channel, and the main gear can move in the meshing channel under the drive of the telescopic adjustment device, so that the main gear meshes with the scraping second gear ring and the cleaning second gear ring simultaneously, or only meshes with the scraping first gear ring and one of the cleaning first gear ring.

[0008] In some embodiments, the cleaning device includes a cleaning rod parallel to the stirring shaft, with one end of the cleaning rod passing through and rotatably connected to the cleaning transmission disk; the cleaning rod is a hollow rod, and a plurality of nozzles are provided on the outer wall of the cleaning rod, the plurality of nozzles being distributed along the axial direction of the cleaning rod, and the spraying direction of each nozzle being parallel to or at an angle to the perpendicular line of the rotation axis; the end of the cleaning rod near the cleaning transmission disk is the input end, and the end of the cleaning rod away from the cleaning transmission disk is sealed.

[0009] In some embodiments, the scraper is fixed to the scraper tooth ring and is parallel to the stirring shaft.

[0010] In some embodiments, the second cleaning toothed ring is identical to the first cleaning toothed ring, and the second cleaning toothed ring and the first cleaning toothed ring are arranged continuously or at intervals; the second scraping toothed ring is identical to the first scraping toothed ring, and the second scraping toothed ring and the first scraping toothed ring are arranged continuously or at intervals.

[0011] In some embodiments, the cleaning device further includes a cleaning drive motor, which is mounted on the cleaning transmission disc. The output end of the cleaning drive motor is connected to the outer wall of the cleaning rod through a transmission component to drive the cleaning rod to rotate.

[0012] In some embodiments, the mixing tank further includes a liquid supply mechanism, which includes a liquid supply connector, an internal liquid supply pipe, and an external liquid supply pipe. The liquid supply connector is rotatably mounted on the stirring shaft. A liquid flow channel is provided within the liquid supply connector. The liquid supply connector includes a stationary connector and a rotary connector, which are rotatably connected. The rotary connector is closer to the first end than the stationary connector. A liquid inlet is provided on the outer wall of the stationary connector, and a liquid outlet is provided on the outer wall of the rotary connector. The liquid inlet communicates with the liquid outlet through the liquid flow channel. The stationary connector is fixedly connected to the tank body, and the… The liquid inlet is located outside the tank body. The rotary joint is fixedly connected to the cleaning transmission disc on the side near the first end so as to rotate synchronously with the cleaning transmission disc. The liquid supply pipe inside the tank is fixed on the cleaning transmission disc so as to rotate synchronously with the cleaning transmission disc. The output end of the liquid supply pipe inside the tank is rotatably connected to and communicates with the input end of the cleaning rod. The input end of the liquid supply pipe inside the tank is connected to the liquid outlet. The liquid supply pipe outside the tank is fixed to the top of the mixing tank. The output end of the liquid supply pipe outside the tank is fixedly connected to and communicates with the liquid inlet. The input end of the liquid supply pipe outside the tank is used to connect to the cleaning liquid container.

[0013] In some embodiments, both the stationary joint and the rotary joint are hollow annular, with the inner ring of the stationary joint extending beyond its outer ring, and the inner ring of the rotary joint fitted around the outer side of the inner ring of the stationary joint, and the outer ring of the rotary joint fitted around the outer side of the outer ring of the stationary joint; a limiting step is provided on the inner wall of the outer ring of the rotary joint to abut against the outer ring of the stationary joint; the inner ring of the stationary joint extends beyond the rotary joint, and a second limiting member is fixed to the portion of the inner ring of the stationary joint extending beyond the rotary joint, the second limiting member being able to fix the axial position of the stationary joint and the rotary joint.

[0014] In some embodiments, the cleaning device and the scraper are arranged in multiple sets along the circumferential direction on the outer periphery of the stirring shaft.

[0015] This utility model also discloses a pharmaceutical production line, including the aforementioned mixing tank.

[0016] The present invention achieves the following technical advantages over the prior art:

[0017] The mixing tank provided by this utility model is equipped with a cleaning device that can rotate around the stirring shaft. This cleaning device can spray cleaning liquid onto the tank body and the stirring device, and can clean the stirring device and the tank body by spraying cleaning liquid from multiple angles. The scraper can also rotate around the axis of the stirring shaft, so that the driving device can provide driving force for the rotation of the cleaning device and the scraper. The scraper can rotate to scrape off the material on the inner wall of the mixing tank during stirring, and can also rotate together with the cleaning device during the cleaning process to scrape and wash the inner wall of the mixing tank. The cleaning effect is good, there are no dead corners in the tank, and there is no residue on the inner wall of the tank and the stirring blades, which can thoroughly clean the inside of the mixing tank.

[0018] The pharmaceutical production line provided by this utility model, due to the setting of a mixing tank with good cleaning effect, can achieve cleaning without dead corners, and avoids the pharmaceutical material still adhering to the inner wall of the mixing tank and the mixing blades after cleaning. This can reduce the impurity content in the pharmaceuticals, avoid affecting the production of pharmaceuticals, and improve the quality of pharmaceuticals. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the mixing tank in some embodiments of the present invention;

[0021] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0022] Figure 3 for Figure 1 A magnified view of part B in the middle section;

[0023] Figure 4 for Figure 1 A magnified view of part C in the middle.

[0024] In the diagram: 100-Mixing tank; 1-Tank body; 11-Gear ring mounting mechanism; 2-Mixing device; 21-Mixing shaft; 211-First limiting component; 22-Mixing blade; 3-Cleaning device; 31-Cleaning rod; 32-Cleaning drive motor; 4-Scraper; 5-Drive mechanism; 51-Drive motor; 52-Telescopic adjustment device; 53-Cleaning transmission disc; 531-Cleaning first gear ring; 532-Cleaning second gear ring; 54-Scraping gear ring; 541-Scraping first gear ring; 542-Scraping second gear ring; 55-Main gear; 6-Liquid supply mechanism; 61-Liquid supply connector; 611-Static connector; 612-Rotary connector; 613-Liquid outlet; 614-Liquid inlet; 615-Second limiting component; 62-Inner tank liquid supply pipe; 63-Outer tank liquid supply pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The purpose of this invention is to provide a mixing tank and a pharmaceutical production line to solve the problems existing in the prior art. It has a good cleaning effect, no dead corners in the tank, no residue on the inner wall of the tank and the mixing blades, and the inside of the mixing tank is thoroughly cleaned, thus solving the problems existing in the prior art.

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the following description is provided in conjunction with the appendix. Figures 1-4 The present invention will be further described in detail below with reference to specific embodiments.

[0028] Example 1

[0029] This embodiment provides a mixing tank 100, for reference. Figure 1The system includes a tank body 1, a stirring device 2, a cleaning device 3, a scraper 4, and a drive mechanism 5. The stirring device 2 includes a stirring shaft 21, with stirring blades 22 at the first end and the second end of the stirring shaft 21 rotatably mounted on the tank body 1. The stirring shaft 21 is used to stir the material inside the tank body 1. The cleaning device 3 is movably installed inside the tank body 1 and can rotate around the stirring shaft 21 to spray cleaning liquid onto the inner wall of the tank body 1 and the stirring device 2. The scraper 4 is movably installed inside the tank body 1, with its scraping end contacting and engaging with the inner wall of the tank body 1. The scraper 4 can rotate around the stirring shaft 21 to scrape material from the inner wall of the tank body 1. The drive mechanism 5 is mounted on the tank body 1 and provides driving force for the rotation of the cleaning device 3 and the scraper 4. By setting up a cleaning device 3, which can rotate around the stirring shaft 21, the output end of the cleaning device 3 sprays cleaning liquid onto the tank 1 and the stirring device 2. The cleaning liquid can be sprayed onto the stirring device 2 and the tank 1 from multiple angles for cleaning. The scraper 4 can also rotate around the axis of the stirring shaft 21, so that the drive mechanism 5 can provide driving force for the rotation of the cleaning device 3 and the scraper 4. The scraper 4 can rotate to scrape off the material on the inner wall of the mixing tank 100 during stirring, and it can also rotate together with the cleaning device 3 during the cleaning process to scrape and wash the inner wall of the mixing tank 100. The cleaning effect is good, there are no dead corners in the tank 1, and there is no residue on the inner wall of the tank 1 and the stirring blades 22. The interior of the mixing tank 100 can be thoroughly cleaned.

[0030] In some implementations, reference Figures 2-3The drive mechanism 5 includes a drive motor 51, a telescopic adjustment device 52, a cleaning transmission disc 53, a scraper gear ring 54, and a main gear 55. The main body of the drive motor 51 is located outside the tank body 1, and the output end of the drive motor 51 passes through the tank body 1 and extends into the interior of the tank body 1. The rotation axis of the output end of the drive motor 51 is parallel to the rotation axis of the stirring shaft 21. The telescopic adjustment device 52 is located outside the tank body 1 and is fixedly connected to the main body of the drive motor 51. The telescopic adjustment device 52 can drive the drive motor 51 to move, so that the drive motor 51... The output end moves parallel to the rotation axis of the stirring shaft 21; the cleaning transmission disc 53 is disposed inside the tank body 1, and the cleaning transmission disc 53 is coaxially fitted onto the outside of the stirring shaft 21. The stirring shaft 21 is provided with a first limiting member 211 for axially limiting the movement of the cleaning transmission disc 53. The first limiting member 211 is located at the end of the cleaning transmission disc 53 away from the second end; the outer ring of the cleaning transmission disc 53 is provided with a first cleaning gear ring 531 and a second cleaning gear ring 532, and the first cleaning gear ring 531 is located at the end of the cleaning transmission disc 53 closer to the first end. The second cleaning gear ring 532 is located at the end of the cleaning transmission disc 53 near the second end; the cleaning device 3 is mounted on the cleaning transmission disc 53; the scraping gear ring 54 is coaxially fitted onto the outside of the cleaning transmission disc 53 and rotatably mounted on the inner wall of the tank 1 via the gear ring mounting mechanism 11; the inner ring of the scraping gear ring 54 is provided with a first scraping gear ring 541 and a second scraping gear ring 542, with the first scraping gear ring 541 located at the end of the scraping gear ring 54 near the second end and the second scraping gear ring 542 located at the end of the scraping gear ring 54 near the first end. Ring 542 is aligned with the second cleaning gear ring 532, and a meshing channel is formed between the second scraping gear ring 542 and the second cleaning gear ring 532; scraper plate 4 is disposed on scraping gear ring 54; main gear 55 is fixed to the output end of drive motor 51 and located in the meshing channel. Driven by telescopic adjustment device 52, main gear 55 can move within the meshing channel, so that main gear 55 meshes simultaneously with the second scraping gear ring 542 and the second cleaning gear ring 532, or only with one of the first scraping gear ring 541 and the first cleaning gear ring 531. In this embodiment, drive motor 51 is fixed to motor mounting bracket, and telescopic adjustment device 52 is an electric push rod. The electric push rod drives the motor mounting bracket to move, thereby adjusting the movement of drive motor 51. In other embodiments, telescopic adjustment device 52 can also use other structures such as worm gear transmission to adjust the position of drive motor 51.By setting the telescopic adjustment device 52, the drive gear 55 can move along the rotation axis of the stirring shaft 21. By meshing the main gear 55 with the first cleaning gear ring 531, the cleaning device 3 can be driven to rotate around the stirring shaft 21, realizing the independent use of the cleaning device 3 to spray cleaning liquid onto the inner wall of the mixing tank 100 and the stirring shaft 21. By meshing the main gear 55 with the first scraping gear ring 541, the scraper 4 can be driven to rotate around the stirring shaft 21, realizing the independent use of the scraper 4 to scrape the inner wall of the mixing tank 100 when the mixing tank 100 is stirring materials. By simultaneously meshing the main gear 55 with the second scraping gear ring... The cleaning device 3 and the second cleaning gear 532 mesh simultaneously, enabling the cleaning device 3 to rotate around the stirring shaft 21 while the scraper 4 also rotates around the stirring shaft 21. The rotation directions of the cleaning device 3 and the scraper 4 are opposite, thus achieving scraping of the inner wall of the mixing tank 100 when cleaning the inside of the mixing tank 100. Under the dual action of the cleaning device 3 spraying cleaning liquid and the scraper 4 scraping material, the material adhering to the inner wall of the mixing tank 100 can be thoroughly cleaned. The cleaning effect is good, there are no dead corners in the tank 1, and there is no residue on the inner wall of the tank 1 and the stirring blade 22. The inside of the mixing tank 100 can be thoroughly cleaned. In this embodiment, a sealing structure is provided between the output shaft of the drive motor 51 and the tank 1. In this embodiment, the sealing structure is a sealing ring to ensure the sliding seal and rotational seal between the mixing tank 100 and the output end of the drive motor 51. This design is existing technology and will not be described in detail here. In this embodiment, the cleaning transmission disc 53 is a hollow disc to reduce the weight of the cleaning transmission disc 53. In some other embodiments, the cleaning transmission disc 53 can be a circular plate, i.e., a gear. The main body of the gear ring mounting mechanism 11 is ring-shaped. One end of the gear ring mounting mechanism 11 is fixedly connected to the inner wall of the mixing tank 100, and the other end of the gear ring mounting mechanism 11 is rotatably connected to the scraping gear ring 54. Specifically, a rotating bearing is provided between the gear ring mounting mechanism 11 and the scraping gear ring 54 to reduce the friction between the gear ring mounting mechanism 11 and the scraping gear ring 54. The structure and parameters of the first cleaning gear ring 531 and the second cleaning gear ring 532 are completely consistent. The structure and parameters of the first scraping gear ring 541 and the second scraping gear ring 542 are completely consistent. The parameters of the second scraping gear ring 542 need to be adjusted accordingly based on the parameters of the main gear 55 and the parameters of the second cleaning gear ring 532.

[0031] In some implementations, reference Figures 1-3The cleaning device 3 includes a cleaning rod 31, which is parallel to the stirring shaft 21. One end of the cleaning rod 31 passes through the cleaning transmission disk 53 and is rotatably connected to the cleaning transmission disk 53. The cleaning rod 31 is a hollow rod, and several nozzles are provided on the outer wall of the cleaning rod 31. The nozzles are distributed along the axial direction of the cleaning rod 31, and the spray direction of each nozzle is parallel to the perpendicular line of the rotation axis or forms an angle with the perpendicular line of the rotation axis. The end of the cleaning rod 31 near the cleaning transmission disk 53 is the input end, and the end of the cleaning rod 31 away from the cleaning transmission disk 53 is sealed. The cleaning rod 31 is equipped with nozzles that are parallel to the axis of rotation or at an angle to the perpendicular line of the axis of rotation. This allows for multi-angle spraying of cleaning fluid onto the inner wall of the mixing tank 100 and the mixing shaft 21. Specifically, the nozzles are evenly distributed spirally on the cleaning rod 31. As the cleaning rod 31 rotates under the drive of the cleaning transmission disc 53, the spray angle of the spirally distributed nozzles relative to the mixing tank 100 and the mixing device 2 changes. Through multiple angle changes, the mixing blades 22 distributed on the mixing device 2 can be sprayed at multiple angles, achieving cleaning fluid spraying without dead angles and resulting in better cleaning effect.

[0032] In some implementations, reference Figures 1-3 The scraper 4 is fixed on the scraper tooth ring 54 and is parallel to the stirring shaft 21. By fixing the scraper 4 on the scraper tooth ring 54 and making the scraper 4 parallel to the stirring shaft 21, the scraper 4 scrapes the inner wall of the mixing tank 100 as the scraper tooth ring 54 rotates.

[0033] In some implementations, reference Figures 1-3 The second cleaning toothed ring 532 is exactly the same as the first cleaning toothed ring 531, and the second cleaning toothed ring 532 and the first cleaning toothed ring 531 are arranged continuously or intermittently; the second scraping toothed ring 542 is exactly the same as the first scraping toothed ring 541, and the second scraping toothed ring 542 and the first scraping toothed ring 541 are arranged continuously or intermittently. The second cleaning gear ring 532 is identical to the first cleaning gear ring 531, enabling the main gear 55 to smoothly switch from meshing with the first cleaning gear ring 531 to meshing with the second cleaning gear ring 532 when moving along the rotation axis under the drive of the telescopic adjustment device 52. Similarly, the second scraping gear ring 542 is identical to the first scraping gear ring 541, enabling the main gear 55 to smoothly switch from meshing with the first scraping gear ring 541 to meshing with the second scraping gear ring 542 when moving along the rotation axis under the drive of the telescopic adjustment device 52. In other words, as long as the main gear 55 reciprocates under the drive of the telescopic adjustment device 52, it can move to the corresponding position and mesh with the gear ring at that position. This allows for smooth switching between three cleaning modes: cleaning device 3 rotating alone, scraper plate 4 rotating alone, and cleaning device 3 and scraper plate 4 rotating simultaneously. It should be noted that the main gear 55 should remain stationary when moving within the meshing channel.

[0034] In some implementations, reference Figure 2 The cleaning device 3 also includes a cleaning drive motor 32, which is mounted on the cleaning transmission disc 53. The output end of the cleaning drive motor 32 is connected to the outer wall of the cleaning rod 31 via a transmission component to drive the cleaning rod 31 to rotate. In this embodiment, the transmission component is specifically a gear ring fitted on the cleaning rod 31. By making the cleaning rod 31 rotatable, and in conjunction with the spiral distribution of the nozzles, the spray angle of the nozzles can be varied to spray the stirring blades 22 distributed on the stirring device 2 at multiple angles, resulting in better cleaning. In addition, by controlling the rotation speed of the cleaning rod 31, the speed of change of the spray angle can also be adjusted to adapt to cleaning under different material conditions in different stirring tanks 100. In this embodiment, the cleaning rod 31 specifically includes a first bent section, a second bent section, and a third bent section connected in sequence. The first bent section is parallel to the third bent section and movably passes through the cleaning transmission disc 53, and can rotate relative to the cleaning transmission disc 53. The nozzles are evenly spirally distributed on the third bent section. By setting the cleaning rod 31 into a zigzag shape with the first bent section, the second bent section, and the third bent section connected in sequence, the nozzle angle is more varied when the cleaning rod 31 rotates, enabling multi-angle and more thorough cleaning of the interior of the mixing tank 100, resulting in a better cleaning effect. The gear ring is fixed on the first bent section, and the cleaning rod 31 rotates around the first bent section as the center.

[0035] In some implementations, reference Figure 1 and Figure 4The mixing tank 100 also includes a liquid supply mechanism 6, which includes a liquid supply connector 61, an internal liquid supply pipe 62, and an external liquid supply pipe 63. The liquid supply connector 61 is rotatably mounted on the stirring shaft 21. A liquid flow channel is provided inside the liquid supply connector 61. The liquid supply connector 61 includes a stationary connector 611 and a rotary connector 612, which are rotatably connected. The rotary connector 612 is closer to the first end than the stationary connector 611. A liquid inlet 614 is provided on the outer wall of the stationary connector 611, and a liquid outlet 613 is provided on the outer wall of the rotary connector 612. The liquid inlet 614 is connected to the liquid outlet 613 through the liquid flow channel. The stationary connector 611 is fixedly connected to the tank body 1, and the liquid inlet 614 is located outside the tank body 1. The side of the rotary connector 612 closest to the first end is connected to the cleaning transmission disc 53. The tank is fixedly connected to rotate synchronously with the cleaning drive disc 53. The internal liquid supply pipe 62 is mounted on the cleaning drive disc 53 and rotates synchronously with it. The output end of the internal liquid supply pipe 62 is rotatably connected to and communicates with the input end of the cleaning rod 31. In this embodiment, the output end of the internal liquid supply pipe 62 and the input end of the cleaning rod 31 are connected via a single-pass rotary joint, enabling the cleaning rod 31 to communicate with the internal industrial pipe 62 while rotating. The single-pass rotary joint is existing technology and will not be described further here. The input end of the internal liquid supply pipe 62 is connected to the liquid outlet 613. The external liquid supply pipe 63 is fixed to the top of the mixing tank 100. The output end of the external liquid supply pipe 63 is fixedly connected to and communicates with the liquid inlet 614, and the input end of the external liquid supply pipe 63 is used to connect to the cleaning liquid container. By setting the liquid supply connector 61, the rotating internal liquid supply pipe 62 inside the tank 1 can connect to the fixed external liquid supply pipe 63, realizing the delivery of the cleaning liquid. Furthermore, the external liquid supply pipe 63 is fixed to the top of the mixing tank 100, and a liquid supply connector 61 is provided to prevent the external liquid supply pipe 63 from rotating under the drive of the internal liquid supply pipe 62, thus avoiding kinking and wear of the external liquid supply pipe 63. Specifically, the liquid supply connector 61 is configured as a stationary connector 611 and a rotary connector 612, allowing the rotary connector 612 to be rotatably connected to the stationary connector 611. The stationary connector 611 is fixedly connected to the tank body 1, and a sealing structure, such as a sealing ring, is provided at this fixed connection to seal the tank body 1 of the mixing tank 100. This is existing technology and will not be described in detail here. The end of the rotary connector 612 near the first end is fixedly connected to the cleaning transmission disc 53 through a connector, so that the rotary connector 612 and the cleaning transmission disc 53 rotate synchronously, preventing the internal liquid supply pipe 62 from getting entangled with the stirring shaft 21 and ensuring the service life of the internal liquid supply pipe 62.

[0036] In some implementations, reference Figure 4Both the stationary joint 611 and the rotary joint 612 are hollow annular. The inner ring of the stationary joint 611 extends beyond its outer ring, and the inner ring of the rotary joint 612 is fitted over the outer side of the inner ring of the stationary joint 611, and the outer ring of the rotary joint 612 is fitted over the outer side of the outer ring of the stationary joint 611. A limiting step is provided on the inner wall of the outer ring of the rotary joint 612 to abut against the outer ring of the stationary joint 611. The inner ring of the stationary joint 611 extends beyond the rotary joint 612, and a second limiting member 615 is fixed to the portion of the inner ring of the stationary joint 611 extending beyond the rotary joint 612. The second limiting member 615 can fix the axial position of the stationary joint 611 and the rotary joint 612. Further, refer to... Figure 2 The liquid supply connector 61 is divided into a stationary connector 611 and a rotary connector 612. The outer wall of the outer ring of the stationary connector 611 is slidably connected to the inner wall of the outer ring of the rotary connector 612. A first bearing and a sealing ring are spaced apart on the sliding connection surface, with the sealing ring closer to the first end than the first bearing. The inner wall of the inner ring of the stationary connector 611 is slidably connected to the outer wall of the inner ring of the rotary connector 612. A second bearing and a sealing ring are spaced apart on the sliding connection surface, with the sealing ring farther from the first end than the second bearing. This ensures a tight seal even when the rotary connector 612 and the stationary connector 611 rotate, preventing leakage of cleaning fluid at the connection and maintaining the pressure of the cleaning fluid sprayed by the cleaning rod 31. Furthermore, the axial positioning of the stationary connector 611 and the rotary connector 612 is achieved by setting a second limiting member 615, resulting in a simple structure that is easy to implement.

[0037] In some implementations, reference Figure 1 Multiple sets of cleaning devices 3 and scraper blades 4 are arranged circumferentially around the outer periphery of the stirring shaft 21. By setting multiple sets of cleaning devices 3 and scraper blades 4, simultaneous movement of multiple sets of cleaning devices 3 and scraper blades 4 can be achieved, thereby improving the cleaning efficiency within the mixing tank 100. In this embodiment, two sets of scraper blades 4 and one set of cleaning devices 3 are provided. In other embodiments, the number of scraper blades 4 and cleaning devices 3 may also be different.

[0038] Example 2

[0039] This embodiment provides a pharmaceutical production line, including the mixing tank 100 as described in Embodiment 1. By setting the mixing tank 100 as described in Embodiment 1 in the pharmaceutical production line, the cleaning device 3 and the scraper 4 can move simultaneously, resulting in good cleaning effect and achieving cleaning without dead corners. This prevents pharmaceutical materials from still adhering to the inner wall of the mixing tank 100 and the mixing blades 22 after cleaning, thereby reducing the impurity content in the pharmaceuticals, avoiding any impact on pharmaceutical production, and improving the quality of the pharmaceuticals.

[0040] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A mixing tank, characterized in that: include: Tank body; A stirring device, comprising a stirring shaft, a stirring blade provided at a first end of the stirring shaft, and a second end of the stirring shaft rotatably mounted on the tank body, the stirring shaft being used to stir the material inside the tank; A cleaning device is movably installed inside the tank and is capable of rotating around the stirring shaft to spray cleaning liquid onto the inner wall of the tank and the stirring device. A scraper is movably installed inside the tank, with its scraping end contacting the inner wall of the tank; the scraper can rotate around the stirring shaft to scrape material from the inner wall of the tank. A drive mechanism is provided on the tank body, which provides driving force for the rotation of the cleaning device and the scraper.

2. The mixing tank according to claim 1, characterized in that: The drive mechanism includes: A drive motor, the main body of which is disposed outside the tank, the output end of which passes through the tank and extends into the interior of the tank, and the rotation axis of the output end of the drive motor is parallel to the rotation axis of the stirring shaft; A telescopic adjustment device is located outside the tank and is fixedly connected to the main body of the drive motor. The telescopic adjustment device can drive the drive motor to move so that the output end of the drive motor moves parallel to the rotation axis of the stirring shaft. A cleaning transmission disc is disposed inside the tank and coaxially fitted onto the outside of the stirring shaft. The stirring shaft is provided with a first limiting member for axially limiting the movement of the cleaning transmission disc, the first limiting member being located at the end of the cleaning transmission disc furthest from the second end. The outer ring of the cleaning transmission disc is provided with a first cleaning gear ring and a second cleaning gear ring, the first cleaning gear ring being located at the end of the cleaning transmission disc closer to the first end, and the second cleaning gear ring being located at the end of the cleaning transmission disc closer to the second end. A cleaning device is disposed on the cleaning transmission disc. A scraping toothed ring is coaxially fitted onto the outside of the cleaning transmission disc and rotatably mounted on the inner wall of the tank via a toothed ring mounting mechanism. The inner ring of the scraping toothed ring is provided with a first scraping toothed ring and a second scraping toothed ring. The first scraping toothed ring is located at the end of the scraping toothed ring closer to the second end, and the second scraping toothed ring is located at the end of the scraping toothed ring closer to the first end. The second scraping toothed ring is aligned with the second cleaning toothed ring, and a meshing channel is formed between the second scraping toothed ring and the second cleaning toothed ring. A scraper plate is disposed on the scraping toothed ring. The main gear is fixed to the output end of the drive motor and located in the meshing channel. The main gear can move in the meshing channel under the drive of the telescopic adjustment device so that the main gear meshes with the scraping second gear ring and the cleaning second gear ring simultaneously, or meshes with only one of the scraping first gear ring and the cleaning first gear ring.

3. The mixing tank according to claim 2, characterized in that: The cleaning device includes: A cleaning rod is provided, which is parallel to the stirring shaft, and one end of the cleaning rod passes through the cleaning transmission disk and is rotatably connected to the cleaning transmission disk. The cleaning rod is a hollow rod, and a plurality of nozzles are provided on the outer wall of the cleaning rod. The plurality of nozzles are distributed along the axial direction of the cleaning rod, and the spray direction of each nozzle is parallel to or at an angle to the perpendicular line of the rotation axis. The end of the cleaning rod near the cleaning transmission disk is the input end, and the end of the cleaning rod away from the cleaning transmission disk is sealed.

4. The mixing tank according to claim 3, characterized in that: The scraper is fixed on the scraper tooth ring and is parallel to the stirring shaft.

5. The mixing tank according to claim 4, characterized in that: The second cleaning toothed ring is exactly the same as the first cleaning toothed ring, and the second cleaning toothed ring and the first cleaning toothed ring are arranged continuously or intermittently; the second scraping toothed ring is exactly the same as the first scraping toothed ring, and the second scraping toothed ring and the first scraping toothed ring are arranged continuously or intermittently.

6. The mixing tank according to any one of claims 3 to 5, characterized in that: The cleaning device also includes a cleaning drive motor, which is mounted on the cleaning transmission disc. The output end of the cleaning drive motor is connected to the outer wall of the cleaning rod through a transmission component to drive the cleaning rod to rotate.

7. The mixing tank according to any one of claims 3 to 5, characterized in that: It also includes a liquid supply mechanism, which comprises: A liquid supply connector is rotatably mounted on the stirring shaft. The liquid supply connector has a liquid flow channel and includes a stationary connector and a rotary connector, which are rotatably connected. The rotary connector is closer to the first end than the stationary connector. The outer wall of the stationary connector has a liquid inlet, and the outer wall of the rotary connector has a liquid outlet. The liquid inlet communicates with the liquid outlet through the liquid flow channel. The stationary connector is fixedly connected to the tank body, and the liquid inlet is located outside the tank body. The side of the rotary connector closest to the first end is fixedly connected to the cleaning transmission disc to rotate synchronously with the cleaning transmission disc. The liquid supply pipe inside the tank is fixed on the cleaning transmission plate so as to rotate synchronously with the cleaning transmission plate. The output end of the liquid supply pipe inside the tank is rotatably connected to and communicates with the input end of the cleaning rod. The input end of the liquid supply pipe inside the tank is connected to the liquid outlet. An external liquid supply pipeline is fixed to the top of the mixing tank. The output end of the external liquid supply pipeline is fixedly connected to and communicates with the liquid inlet. The input end of the external liquid supply pipeline is used to communicate with the cleaning liquid container.

8. The mixing tank according to claim 7, characterized in that: Both the stationary joint and the rotary joint are hollow annular. The inner ring of the stationary joint extends beyond the outer ring of the stationary joint, and the inner ring of the rotary joint is fitted around the outer side of the inner ring of the stationary joint, and the outer ring of the rotary joint is fitted around the outer side of the outer ring of the stationary joint. A limiting step is provided on the inner wall of the outer ring of the rotary joint to abut against the outer ring of the stationary joint. The inner ring of the stationary joint extends beyond the rotary joint, and a second limiting member is fixed to the portion of the inner ring of the stationary joint extending beyond the rotary joint. The second limiting member can fix the axial position of the stationary joint and the rotary joint.

9. The mixing tank according to any one of claims 1 to 5, characterized in that: The cleaning device and the scraper are arranged in multiple sets along the circumferential direction on the outer periphery of the stirring shaft.

10. A pharmaceutical production line, characterized in that: Includes the mixing tank as described in any one of claims 1 to 9.

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