A kind of stirring device for erythromycin zinc acetate ointment production

Abstract

The utility model discloses a kind of erythromycin zinc acetate ointment production stirring devices, including support frame, stirring mechanism, dustproof mechanism and heating mechanism, the stirring mechanism includes stirring barrel, first stirring device, second stirring device and connecting assembly, the stirring barrel is set on support frame upper end face, the inlet pipe is provided on the upper end surface of the stirring barrel, the first stirring device includes first motor, main shaft and first stirring blade, the first motor passes through stirring barrel and is connected with main shaft, the first stirring blade is fixedly connected with main shaft, the second stirring device includes shaft, second stirring blade, large gear and pinion, the shaft is rotatably connected with connecting assembly, the large gear and the pinion are arranged in the inside of stirring barrel, one end of the shaft is fixedly connected with pinion, the large gear is fixedly connected with the upper of the inner wall of stirring barrel, the large gear and pinion are engaged, this stirring mechanism significantly improves mixing efficiency and mixing homogeneity.

Description

Technical Field

[0001] This utility model relates to the field of erythromycin zinc acetate ointment production technology, and more specifically, it relates to a stirring device for the production of erythromycin zinc acetate ointment. Background Technology

[0002] Erythromycin zinc acetate ointment is a topical antibacterial and anti-inflammatory ointment, mainly used to treat bacterial skin infections and inflammation. It is suitable for mild bacterial skin infections, wound protection of superficial burns and scalds, and other symptoms.

[0003] In the industrial production of erythromycin zinc acetate ointment, the stirring device is the core equipment to ensure uniform dispersion of drug components, full melting of the matrix, and stable product quality. Traditional ointment production often uses conventional mixing tanks combined with anchor or paddle mixers, but these methods still have some shortcomings in practical production applications.

[0004] Existing mixing equipment mostly relies on single-shaft anchor or paddle mixers, lacking heating mechanisms. This makes it difficult to meet the mixing requirements of high-viscosity ointments. For example, in the production of erythromycin zinc acetate ointment, the high viscosity of the petrolatum base requires heating to improve its fluidity and achieve thorough mixing. Furthermore, single mixing devices have deficiencies in mixing efficiency and homogenization. In pharmaceutical production, dust control is a crucial aspect of ensuring product quality. Traditional dust control measures, such as fixed lids or simple manual coverings, are inconvenient to operate and easily introduce dust when frequently opened and closed. These factors lead to low production efficiency, large quality fluctuations, and high compliance risks in the production of erythromycin zinc acetate ointment. Therefore, there is an urgent need to design a mixing device for the production of erythromycin zinc acetate ointment to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a stirring device for the production of erythromycin zinc acetate ointment, so as to solve the technical problems of low mixing homogeneity and low cleanliness guarantee in the prior art mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A stirring device for producing erythromycin zinc acetate ointment includes a support frame, a stirring mechanism, a dustproof mechanism, and a heating mechanism. The dustproof mechanism includes a dust cover and a feed pipe, which are detachably slidably connected. The stirring mechanism includes a stirring tank, a first stirring device, a second stirring device, and a connecting assembly. The stirring tank is disposed on the upper surface of the support frame, and the feed pipe is disposed on the upper surface of the stirring tank. The first stirring device includes a first motor, a main shaft, and a first stirring blade. The first motor passes through the stirring tank and is connected to the main shaft. The first stirring blade is fixedly connected to the main shaft. The second stirring device includes a rotating shaft, a second stirring blade, a large gear, and a small gear. The rotating shaft is rotatably connected to the connecting assembly. The large gear and the small gear are disposed inside the stirring tank. One end of the rotating shaft is fixedly connected to the small gear. The large gear is fixedly connected to the upper inner wall of the stirring tank, and the large gear and the small gear mesh. The heating mechanism is sleeved on the outer side of the stirring tank.

[0010] The present invention is further configured such that rollers are installed on both sides of the dust cover, roller grooves are opened on both sides of the upper end face of the feed pipe, threaded holes are opened at the center positions of both sides of the feed pipe and the dust cover, and the dust cover and the feed pipe are connected and fixed by bolts. When feeding is required, the dust cover is slid open, and when not needed, the dust cover is slid closed to prevent dust from entering.

[0011] The present invention is further configured such that the connecting assembly includes a top plate and a bottom plate. The top plate is fixedly connected to the main shaft near the top of the mixing tank, and the bottom plate slides against the bottom surface of the mixing tank and is fixedly connected to the main shaft. The upper end of the rotating shaft is rotatably connected to the top plate, and the lower end of the rotating shaft is rotatably connected to the bottom plate. The large gear and the small gear are located above the top plate, and one end of the rotating shaft passes through the top plate and is fixedly connected to the small gear. The connecting assembly drives the second stirring device to move around the first stirring device, pushing the material away from the center of the mixing tank to the center position of the mixing tank, so that the material is fully stirred.

[0012] The present invention is further configured such that scrapers are provided on both sides of the connecting component, the scrapers are fixedly connected to the connecting component and slide against the inner wall of the mixing tank, the scrapers and the second stirring device are symmetrically arranged on both sides of the main shaft, and the scrapers scrape and stir the material close to the inner wall of the mixing tank during the movement, thereby reducing the possibility of the material adhering to the mixing tank.

[0013] The present invention is further configured such that: multiple first stirring blades are provided, and the first stirring blades are arranged vertically and fixedly connected to the main shaft at equal intervals; multiple second stirring blades are provided, and the second stirring blades are arranged vertically and fixedly connected to the rotating shaft at equal intervals; the first stirring blades and the second stirring blades are staggered. This configuration makes the stirring areas of the stirring blades and the stirring rod overlap, thereby breaking the stirring dead zone and further improving the stirring rate.

[0014] The present invention is further configured such that the heating mechanism includes a surrounding chamber, a protective chamber, a heating chamber, branch pipes, heating pipes, connecting pipes, and a control valve. The surrounding chamber is disposed on the upper end face of the support frame and is sleeved on the outer side of the mixing tank. The surrounding chamber has an annular tubular structure with a hollow inner wall. The protective chambers are symmetrically disposed on both sides of the surrounding chamber. The heating chamber is disposed on the lower end face of the support frame. One end of the heating pipe is disposed below the upper wall of the protective chamber, and the other end is disposed on the outer side of the heating chamber. The heating pipe is L-shaped. The branch pipes are evenly and equidistantly disposed on the outer side of the heating pipe, and the other end of the branch pipe is disposed inside the surrounding chamber. The branch pipe is L-shaped. The connecting pipes are symmetrically disposed on the outer side of the heating chamber, and the other end is disposed on the lower end face of the support frame. A control valve is provided between the connecting pipe on either side and the heating chamber to achieve uniform heating of the material in the mixing tank.

[0015] The present invention is further configured such that a second motor, a fan blade, and a heating wire are provided inside the heating chamber. A column structure is provided below the second motor for support and fixation. The fan blade is fixedly connected to the second motor. The second motor and the heating wire are arranged on both sides of the fan blade. The second motor, in conjunction with the heating wire, increases the temperature inside the chamber, thereby increasing the temperature inside the mixing tank, further reducing the viscosity of the material, increasing its fluidity, so as to achieve full mixing of the material and improve the mixing efficiency.

[0016] The present invention is further configured such that the support frame is a hollow structure, and the heating chamber simultaneously heats the temperature inside the support frame, so that the temperature inside the mixing tank rises uniformly and rapidly.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a stirring device for the production of erythromycin zinc acetate ointment, which has the following beneficial effects:

[0019] 1. By setting up a dustproof device, this utility model effectively avoids dust in the pharmaceutical manufacturing process, reduces the compliance risks of pharmaceuticals, and thus improves production efficiency.

[0020] 2. This utility model features a dual stirring mechanism. Upon opening the dust cover, materials are added to the mixing tank through the feed pipe. The first stirring device is activated, and the first motor drives the main shaft to rotate, causing multiple stirring rods fixed to the main shaft to initially stir the materials in the central area of ​​the mixing tank. Simultaneously, the main shaft drives the top and bottom plates of the connecting assembly to rotate around the main shaft. The top plate is close to the top of the mixing tank, and the bottom plate slides against the bottom of the tank. Together, they support the movement of the second stirring device and the scraper. The scraper rotates with the connecting assembly, sliding against the inner wall of the mixing tank, scraping off the material adhering to the tank wall and pushing it towards the area of ​​the second stirring device. The rotating shaft of the second stirring device revolves around the main shaft with the connecting assembly. The small gear at the top of the rotating shaft meshes with the large gear fixed to the upper wall of the mixing tank, driving the rotating shaft to rotate and causing the stirring blades to stir the materials. The stirring blades thoroughly mix the material cleaned by the scraper with the material in the central area. Simultaneously, the stirring rods and stirring blades are staggered, further breaking up mixing dead zones. The synergistic effect of the scraper and the second stirring device, along with the combined revolution and rotation of the rotating shaft, significantly improves mixing efficiency and homogeneity.

[0021] 3. This utility model is equipped with a surround heating mechanism. The second motor drives the fan blades to rotate at high speed to generate airflow. The fan blades blow the air towards the area where the heating wire is located. The air is heated when it flows through the heating wire, forming a high-temperature airflow. Some of the hot air enters the base through the connecting pipe, raising the temperature of the base. Then, it returns to the heating chamber through the other connecting pipe. The remaining hot air enters the heating pipe and flows along the L-shaped pipe. The hot air is evenly introduced into the cavity of the surround chamber through the branch pipe. The even distribution of the branch pipe ensures that the overall temperature of the surround chamber rises evenly. After the heat transfer is completed, the hot air returns to the heating chamber through the other heating pipe, forming a closed loop. The second motor drives the fan blades to work in conjunction with the heating wire. The hot air circulates in two paths, heating the base and the surround chamber respectively, achieving all-round uniform heating of the mixing tank. This reduces the viscosity of the material, improves its fluidity, and achieves thorough mixing of the material, thereby improving mixing efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a stirring device for producing erythromycin zinc acetate ointment according to this utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the overall structure of a stirring device for producing erythromycin zinc acetate ointment according to this utility model. Figure 2 ;

[0024] Figure 3 This is a cross-sectional view of the overall internal structure of a stirring device for producing erythromycin zinc acetate ointment according to the present invention.

[0025] Figure 4 This is a schematic diagram of the stirring mechanism of a stirring device for producing erythromycin zinc acetate ointment according to the present invention;

[0026] Figure 5 This is a schematic diagram of the dustproof mechanism of a stirring device for producing erythromycin zinc acetate ointment according to the present invention.

[0027] In the diagram: 1. Support frame; 2. Dust cover; 3. Feed pipe; 4. Mixing tank; 5. First motor; 6. Main shaft; 7. First mixing blade; 8. Rotating shaft; 9. Second mixing blade; 10. Large gear; 11. Small gear; 12. Roller; 13. Roller groove; 14. Threaded hole; 15. Bolt; 16. Top plate; 17. Bottom plate; 18. Scraper; 19. Surrounding chamber; 20. Protective chamber; 21. Heating chamber; 22. Branch pipe; 23. Heating pipe; 24. Connecting pipe; 25. Control valve; 26. Second motor; 27. Fan blade; 28. Heating wire. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-5A stirring device for producing erythromycin zinc acetate ointment includes a support frame 1, a stirring mechanism, a dustproof mechanism, and a heating mechanism. The dustproof mechanism includes a dust cover 2 and a feed pipe 3, which are detachably slidably connected. The stirring mechanism includes a stirring tank 4, a first stirring device, a second stirring device, and a connecting assembly. The stirring tank 4 is disposed on the upper surface of the support frame 1, and the feed pipe 3 is disposed on the upper surface of the stirring tank 4. The first stirring device includes a first motor 5, a main shaft 6, and a first stirring blade 7. The machine 5 passes through the mixing tank 4 and is connected to the main shaft 6. The first stirring blade 7 is fixedly connected to the main shaft 6. The second stirring device includes a rotating shaft 8, a second stirring blade 9, a large gear 10, and a small gear 11. The rotating shaft 8 is rotatably connected to the connecting assembly. The large gear 10 and the small gear 11 are disposed inside the mixing tank 4. One end of the rotating shaft 8 is fixedly connected to the small gear 11. The large gear 10 is fixedly connected to the upper part of the inner wall of the mixing tank 4. The large gear 10 and the small gear 11 mesh. The heating mechanism is sleeved on the outer side of the mixing tank 4.

[0032] In a further embodiment, the dust cover 2 is equipped with rollers 12 on both sides, the upper end face of the feed pipe 3 is provided with roller grooves 13 on both sides, and the feed pipe 3 and the dust cover 2 are provided with threaded holes 14 at the center of both sides. The dust cover 2 and the feed pipe 3 are connected and fixed by bolts 15. When feeding is required, the dust cover 2 is slid open, and when not needed, the dust cover 2 is slid closed to prevent dust from entering.

[0033] In a further embodiment, the connecting assembly includes a top plate 16 and a bottom plate 17. The top plate 16 is fixedly connected to the main shaft 6 near the top of the mixing tank 4. The bottom plate 17 slides against the bottom surface of the mixing tank 4 and is fixedly connected to the main shaft 6. The upper end of the rotating shaft 8 is rotatably connected to the top plate 16, and the lower end of the rotating shaft 8 is rotatably connected to the bottom plate 17. The large gear 10 and the small gear 11 are located above the top plate 16, and one end of the rotating shaft 8 passes through the top plate 16 and is fixedly connected to the small gear 11. Scrapers 18 are provided on both sides of the connecting assembly. The scrapers 18 are fixedly connected to the connecting assembly and slide against the inner wall of the mixing tank 4. The scrapers 18 and the second stirring device are symmetrically arranged on both sides of the main shaft. During the movement, the scrapers 18 scrape down and stir the material near the inner wall of the mixing tank 4, reducing the possibility of material adhering to the mixing tank 4. The connecting assembly drives the scrapers 18 and the second stirring device to move around the first stirring device, pushing the material away from the center of the mixing tank 4 to the center position of the mixing tank, so that the material is fully stirred.

[0034] In a further embodiment, multiple first stirring blades 7 are provided, and the first stirring blades 7 are arranged vertically and fixedly connected to the main shaft 6 at equal intervals. Multiple second stirring blades 9 are provided, and the second stirring blades 9 are arranged vertically and fixedly connected to the rotating shaft 8 at equal intervals. The first stirring blades 7 and the second stirring blades 9 are staggered. This arrangement makes the stirring areas of the stirring blades and the stirring rod overlap, thereby breaking the stirring dead zone and further improving the stirring rate.

[0035] In a further embodiment, the heating mechanism includes a surrounding chamber 19, a protective chamber 20, a heating chamber 21, a branch pipe 22, a heating pipe 23, a connecting pipe 24, and a control valve 25. The surrounding chamber 19 is disposed on the upper end face of the support frame 1 and is sleeved on the outer side of the mixing tank 4. The surrounding chamber 19 has an annular tubular structure with a hollow inner wall. The protective chamber 20 is symmetrically disposed on both sides of the surrounding chamber 19. The heating chamber 21 is disposed on the lower end face of the support frame 1. The heating chamber 21 is provided with a second motor 26, a fan blade 27, and a heating wire 28. A column structure is provided below the second motor 26 for support and fixation. The fan blade 27 is fixedly connected to the second motor 26. The second motor 26 and the heating wire 28 are disposed on both sides of the fan blade 27. One end of the heating pipe 23 is located below the upper wall of the protective chamber 20, and the other end is located on the outer side of the heating chamber 21. The heating pipe 23 is an L-shaped pipe. The branch pipes 22 are evenly and equidistantly arranged on the outer side of the heating pipe 23. The other end of the branch pipes 22 is located inside the surrounding chamber 19. The branch pipes 22 are also L-shaped pipes. The connecting pipes 24 are symmetrically arranged on the outer side of the heating chamber 21, and the other end is located on the lower end face of the support frame 1. A control valve 25 is provided between the connecting pipe 24 on either side and the heating chamber 21. The support frame is a hollow structure.

[0036] The second motor 26 drives the fan blades 27 to rotate at high speed, generating airflow. The fan blades 27 blow the air towards the area where the heating wire 28 is located. The air is heated as it flows through the heating wire 28, forming a high-temperature airflow. Some of the hot air enters the support frame 1 through the connecting pipe 24, raising the temperature of the support frame 1, and then returns to the heating chamber 21 through the other connecting pipe 24. The remaining hot air enters the heating pipe 23 and flows along the L-shaped pipe. The hot air is evenly introduced from the heating pipe 23 into the cavity of the surrounding chamber 19 through the branch pipe 22. The even distribution of the branch pipes 22 ensures that the overall temperature of the surrounding chamber 19 rises evenly. After the heat transfer is completed, the hot air returns to the heating chamber 21 through the other heating pipe 23, forming a closed loop circulation, achieving all-round uniform heating of the mixing tank 4.

[0037] In summary, when using the overall equipment:

[0038] In this invention, the dust cover 2 is opened, and the material is added into the mixing tank 4 through the feed pipe 3. The first stirring device is started, and the first motor 5 drives the main shaft 6 to rotate, which in turn drives multiple first stirring blades 7 fixed on the main shaft 6 to perform preliminary stirring of the material in the central area of ​​the mixing tank 4. The main shaft 6 synchronously drives the top plate 16 and the bottom plate 17 of the connecting assembly to rotate around the main shaft 6. The top plate 16 is close to the top of the mixing tank 4, and the bottom plate 17 slides against the bottom of the tank. Together, they support the movement of the second stirring device and the scraper 18. The scraper 18 rotates with the connecting assembly and slides against the inner wall of the mixing tank 4, scraping off the material adhering to the tank wall and pushing it towards the area of ​​the second stirring device. The rotating shaft 8 of the second stirring device revolves around the main shaft 6 with the connecting assembly. The small gear 11 at the top of the rotating shaft 8 meshes with the large gear 10 fixed on the tank wall of the mixing tank 4, driving the rotating shaft 8 to rotate, which in turn drives the second stirring blades 9 to stir the material. The second stirring blade 9 thoroughly mixes the material cleaned by the scraper 18 with the material in the central area. At the same time, the first stirring blade 7 and the second stirring blade 9 are staggered to further break up the dead zones in the mixing. The synergistic effect of the scraper 18 and the second stirring device, as well as the combined revolution and rotation of the rotating shaft 8, significantly improves the mixing efficiency and homogeneity.

[0039] In this invention, the second motor 26 drives the fan blades 27 to rotate at high speed, generating airflow. The fan blades 27 blow the air towards the area where the heating wire 28 is located. The air is heated as it flows through the heating wire 28, forming a high-temperature airflow. Part of the hot air enters the support frame 1 through the connecting pipe 24, raising the temperature of the support frame 1, and then returns to the heating chamber 21 through the other connecting pipe 24. The remaining hot air enters the heating pipe 23 and flows along the L-shaped pipe. The hot air is evenly introduced from the heating pipe 23 into the cavity of the surrounding chamber 19 through the branch pipe 22. The even distribution of the branch pipes 22 ensures that the overall temperature of the surrounding chamber 19 rises evenly. After completing the heat transfer, the hot air returns to the heating chamber 21 through the other heating pipe 23, forming a closed-loop circulation. By driving the fan blades 27 and the heating wire 28 to work together, the hot air circulates in two paths, heating the support frame 1 and the surrounding chamber 19 respectively, achieving all-round uniform heating of the mixing tank 4, thereby reducing the viscosity of the material, improving its fluidity, and achieving thorough mixing of the material, thus improving mixing efficiency.

[0040] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their electrical connection relationships and specific circuit structures will not be elaborated here.

[0041] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies, and this utility model will not elaborate on them.

[0042] Of all the solutions mentioned above, those involving the connection between solar panels and batteries can be equipped with essential accessories such as inverters, battery charging controllers, cables, fuses, and brackets. Their control principles and circuit connections are all existing, well-known, and mature technologies, so their electrical connection relationships and specific circuit structures will not be elaborated here.

Claims

1. A stirring device for producing erythromycin zinc acetate ointment, comprising a support frame (1), a stirring mechanism, a dustproof mechanism, and a heating mechanism, characterized in that: The dustproof mechanism includes a dust cover (2) and a feed pipe (3), which are detachably slidably connected. The stirring mechanism includes a stirring tank (4), a first stirring device, a second stirring device, and a connecting assembly. The stirring tank (4) is located on the upper surface of the support frame (1), and the upper surface of the stirring tank (4) is provided with a feed pipe (3). The first stirring device includes a first motor (5), a main shaft (6), and a first stirring blade (7). The first motor (5) passes through the stirring tank (4) and is connected to the main shaft (6). The first stirring blade (7) 7) The second stirring device is fixedly connected to the main shaft (6), including a rotating shaft (8), a second stirring blade (9), a large gear (10) and a small gear (11). The rotating shaft (8) is rotatably connected to the connecting assembly. The large gear (10) and the small gear (11) are located inside the stirring tank (4). One end of the rotating shaft (8) is fixedly connected to the small gear (11). The large gear (10) is fixedly connected to the upper part of the inner wall of the stirring tank (4). The large gear (10) and the small gear (11) mesh. The heating mechanism is sleeved on the outer side of the stirring tank (4).

2. The stirring device for producing erythromycin zinc acetate ointment according to claim 1, characterized in that: The dust cover (2) is equipped with rollers (12) on both sides, and the feed pipe (3) has roller grooves (13) on both sides of its upper end face. The feed pipe (3) and the dust cover (2) have threaded holes (14) at the center of both sides. The dust cover (2) and the feed pipe (3) are connected and fixed by bolts (15).

3. The stirring device for producing erythromycin zinc acetate ointment according to claim 1, characterized in that: The connecting assembly includes a top plate (16) and a bottom plate (17). The top plate (16) is fixedly connected to the main shaft (6) near the top of the mixing tank (4). The bottom plate (17) slides against the bottom surface of the mixing tank (4) and is fixedly connected to the main shaft (6). The upper end of the rotating shaft (8) is rotatably connected to the top plate (16), and the lower end of the rotating shaft (8) is rotatably connected to the bottom plate (17). The large gear (10) and the small gear (11) are located above the top plate (16). One end of the rotating shaft (8) passes through the top plate (16) and is fixedly connected to the small gear (11).

4. The stirring device for producing erythromycin zinc acetate ointment according to claim 3, characterized in that: Scrapers (18) are provided on both sides of the connecting component. The scrapers (18) are fixedly connected to the connecting component and slide against the inner wall of the mixing tank (4). The scrapers (18) and the second stirring device are symmetrically arranged on both sides of the main shaft.

5. The stirring device for producing erythromycin zinc acetate ointment according to claim 1, characterized in that: Multiple first stirring blades (7) are provided, and the first stirring blades (7) are arranged at equal intervals and vertically fixed to the main shaft (6). Multiple second stirring blades (9) are provided, and the second stirring blades (9) are arranged at equal intervals and vertically fixed to the rotating shaft (8). The first stirring blades (7) and the second stirring blades (9) are arranged alternately.

6. The stirring device for producing erythromycin zinc acetate ointment according to claim 1, characterized in that: The heating mechanism includes a surrounding chamber (19), a protective chamber (20), a heating chamber (21), a branch pipe (22), a heating pipe (23), a connecting pipe (24), and a control valve (25). The surrounding chamber (19) is located on the upper surface of the support frame (1) and is fitted onto the outer side of the mixing tank (4). The surrounding chamber (19) has an annular tubular structure with a hollow inner wall. The protective chambers (20) are symmetrically arranged on both sides of the surrounding chamber (19). The heating chamber (21) is located on the lower surface of the support frame (1). The heating pipe (23) is connected to the outer side of the mixing tank (4). One end is located below the upper wall of the protective chamber (20), and the other end is located on the outer side of the heating chamber (21). The heating pipe (23) is an L-shaped pipe. The branch pipes (22) are evenly and equidistantly arranged on the outer side of the heating pipe (23). The other end of the branch pipe (22) is located inside the surrounding chamber (19). The branch pipe (22) is an L-shaped pipe. The connecting pipe (24) is symmetrically arranged on the outer side of the heating chamber (21), and the other end is located on the lower end face of the support frame (1). A control valve (25) is provided between the connecting pipe (24) on either side and the heating chamber (21).

7. The stirring device for producing erythromycin zinc acetate ointment according to claim 6, characterized in that: The heating chamber (21) is equipped with a second motor (26), a fan blade (27), and a heating wire (28). A column structure is provided below the second motor (26) for support and fixation. The fan blade (27) is fixedly connected to the second motor (26). The second motor (26) and the heating wire (28) are located on both sides of the fan blade (27).

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