Liquid inlet device of solid-liquid stirring kettle

Abstract

The application discloses a liquid inlet device of a solid-liquid stirring kettle, relates to the field of stirring device technologies, and comprises a medicament box, a feeding mechanism and a stirring device, the feeding mechanism is located between the medicament box and the stirring device, the feeding mechanism comprises a feeding pipe one, a feeding pipe two and a connecting mechanism, one end of the feeding pipe one is communicated with the medicament box, one end of the feeding pipe two is located in the stirring device, the other end of the feeding pipe two is located outside the stirring device, and the connecting mechanism is located between the feeding pipe one and the feeding pipe two and is used for connecting the feeding pipe one and the feeding pipe two. The application has the effect of improving liquid inlet stability.

Description

Technical Field

[0001] This application relates to the field of stirring device technology, and in particular to a liquid inlet device for a solid-liquid stirred tank. Background Technology

[0002] Currently, in order to accelerate the reaction rate of solids and liquids, the mixture of solids and liquids is usually transported into a stirred tank. The stirring in the stirred tank increases the contact area between the solids and liquids, thereby accelerating the reaction rate.

[0003] Related technology can be found in Chinese patent application CN219150126U, which discloses a stirred reactor, relating to the chemical industry. This stirred reactor includes a body and a stirrer disposed within the body; the stirred reactor also includes a boss located at the bottom of the body, below the stirrer. By placing the boss at the bottom of the body, below the stirrer, where dead flow zones are easily formed, the stirred reactor can prevent reactant particles from accumulating in this area, thereby improving the quality of the product produced by the stirred reactor.

[0004] Regarding the aforementioned technologies, the stirring material is injected into the body through the reactant injection pipe. When the material inside the body is stirred, a water vortex is formed inside the body. The presence of the vortex will impact the reactant injection pipe. When the stirring rate is high, the impact of the water flow will cause the reactant injection pipe to shake, which can easily lead to damage between the reactant injection pipe and the conveying device, thereby affecting the stability of the liquid injection. Utility Model Content

[0005] To improve the stability of liquid inlet, this application provides a liquid inlet device for a solid-liquid stirred tank.

[0006] This application provides a liquid inlet device for a solid-liquid stirred tank, which adopts the following technical solution: A liquid inlet device for a solid-liquid stirred tank includes a reagent tank, a conveying mechanism, and a stirring device. The conveying mechanism is located between the reagent tank and the stirring device. The conveying mechanism includes a first conveying pipe, a second conveying pipe, and a connecting mechanism. One end of the first conveying pipe is connected to the reagent tank, one end of the second conveying pipe is located inside the stirring device, and the other end of the second conveying pipe is located outside the stirring device. The connecting mechanism is located between the first conveying pipe and the second conveying pipe and is used to connect the first conveying pipe and the second conveying pipe.

[0007] By adopting the above technical solution, the reagent tank conveys materials into the mixing device through the conveying mechanism. The conveying process is segmented, with conveying pipe one and conveying pipe two being independent of each other. This helps to reduce the impact of the vibration of conveying pipe two on conveying pipe one and the reagent tank. The material in conveying pipe one is conveyed to conveying pipe two through the connecting mechanism. When the device is idle, the connecting mechanism wraps around conveying pipe one, which improves the stability of liquid inlet.

[0008] Optionally, the stirring device includes a stirring tank, a drive motor, a rotating shaft, and several stirring rods. The drive motor is fixedly connected vertically to the upper end of the stirring tank. The output shaft of the drive motor passes through the stirring tank and is fixedly connected coaxially to the rotating shaft. The rotating shaft is located inside the stirring tank. Several stirring rods are fixedly connected to the lower end of the rotating shaft and arranged circumferentially along the rotating shaft.

[0009] By adopting the above technical solution, the mixing tank stores the solid-liquid mixture, and the drive motor and rotating shaft work together to drive multiple stirring rods to rotate, thereby stirring the solid-liquid mixture and improving the rate of solid-liquid reaction.

[0010] Optionally, the lower end of the second conveying pipe passes through the mixing tank and is located inside the mixing tank, and the lower end of the second conveying pipe is fixedly connected to the mixing tank.

[0011] By adopting the above technical solution, the fixed connection between the second conveying pipe and the mixing tank helps to reduce the impact of water vortex on the second conveying pipe during solid-liquid mixing, and improves the connection stability between the second conveying pipe and the mixing tank.

[0012] Optionally, the lower end of the second feed pipe extends to the bottom of the mixing tank.

[0013] By adopting the above technical solution, extending the second feed pipe to the bottom of the mixing tank helps to reduce the impact of the solid-liquid mixture on the liquid surface of the mixing tank. Furthermore, the bottom of the mixing tank is a high-shear zone, which helps to improve the mixing effect of the solid-liquid mixture and further improves the rate of solid-liquid reaction.

[0014] Optionally, the connecting mechanism includes several arc-shaped plates, several connecting pieces, a moving part, and a locking part. The lower ends of the several arc-shaped plates are all vertically hinged to the upper end of the second conveying pipe. The several arc-shaped plates are arranged circumferentially along the second conveying pipe. The arc-shaped plates correspond one-to-one with the connecting pieces. The connecting pieces are fixedly connected between two adjacent arc-shaped plates and located on the side of the arc-shaped plates away from the second conveying pipe. The connecting pieces are made of deformable material. The moving part is located at the upper end of the second conveying pipe and is used to drive the several arc-shaped plates to rotate. The locking part is located at the upper end of the second conveying pipe and is used to fix the moving part.

[0015] By adopting the above technical solution, in the initial state, multiple arc-shaped plates are attached to each other and wrap around the conveying pipe. When it is necessary to convey materials into the mixing tank, the locking device releases the locking of the moving device. The moving device drives multiple arc-shaped plates to flip along the hinge. During the flipping process, the connecting plate is stretched. The arc-shaped plates and the connecting plate cooperate to form a funnel shape, which improves the convenience for operators to observe the material flow rate.

[0016] Optionally, the moving component includes a first ring, a second ring, a first spring, several connecting plates, and several connecting rods. The connecting plates and the arc-shaped plate correspond one-to-one. The connecting plates are fixedly connected to the side with the largest area of ​​the arc-shaped plate. The first ring and the second ring are both sleeved on the outside of the second conveying pipe. The first ring is located above the second ring and is fixedly connected to the second conveying pipe. The second ring is slidably connected to the second conveying pipe in the vertical direction. The first spring is sleeved on the outside of the second conveying pipe and is located between the first ring and the second ring. The two ends of the first spring are fixedly connected to the first ring and the second ring, respectively. In its natural state, the first spring drives the second ring to move away from the first ring. The connecting rods correspond one-to-one with the connecting plates. Several connecting rods are vertically hinged to the upper end of the second ring and arranged along the circumference of the second ring. The upper end of the connecting rod is vertically hinged to the lower end of the connecting plate. The connecting rod is inclined from bottom to top along the direction from the arc-shaped plate to the connecting plate.

[0017] By adopting the above technical solution, when the locking component releases the moving component, the first ring and the first spring work together to drive the second ring to move downward. During the downward movement of the second ring, the connecting rod moves, and the connecting rod and the connecting plate work together to drive the arc plate to rotate, which improves the convenience of rotating the arc plate.

[0018] Optionally, the locking component includes a limiting plate, a second spring, a third spring, and a guide rod. The second feed pipe has a vertically oriented receiving groove located below the second ring and radially arranged along the second feed pipe. The limiting plate is located within the receiving groove and is slidably connected to the second feed pipe radially. The second feed pipe has a vertically oriented moving groove communicating with the receiving groove, located below the receiving groove. The guide rod is located within the receiving groove and is slidably connected to the second feed pipe radially. The upper end of the guide rod is located within the receiving groove. The second spring is located between the limiting plate and the guide rod, with both ends fixedly connected to the limiting plate and the guide rod, respectively. The third spring is located on the side of the guide rod away from the second spring, with both ends fixedly connected to the guide rod and the second feed pipe, respectively. In its natural state, the third spring drives the guide rod to move away from the second feed pipe.

[0019] By adopting the above technical solution, in the initial state, the lower end of the second ring abuts against the upper end of the limiting plate, pressing the guide rod. The guide rod slides in the moving groove, and the upper end of the guide rod cooperates with the second spring to drive the limiting plate to slide in the receiving groove, thus completely being located in the receiving groove. When it is necessary to fold the arc plate, the second ring is moved upward. When the second ring contacts the lower end of the limiting plate, the second ring pushes the limiting plate to slide into the receiving groove. When the second ring is completely above the limiting plate, the third spring drives the guide rod to move away from the second conveying pipe. The guide rod and the second spring cooperate to drive the limiting plate to move away from the second conveying pipe, thus causing the limiting plate and the second ring to abut against each other, completing the limiting operation of the second ring and improving the convenience of positioning the second ring.

[0020] Optionally, a temperature sensor is fixed inside the mixing tank, and a display is installed on the outside of the mixing tank. The display is electrically connected to the temperature sensor and to the reagent tank.

[0021] By adopting the above technical solution, the temperature sensor identifies the temperature inside the mixing tank and transmits it to the display. The display adjusts the flow rate of the reagent tank according to the temperature change, which helps to reduce the impact of the temperature rise inside the mixing tank on the material and improves the stability of the solid-liquid mixing reaction.

[0022] Optionally, a support is provided at the lower end of the mixing tank, and the support is detachable from the mixing tank.

[0023] By adopting the above technical solution, the support provides support to the mixing tank, which helps to reduce the probability of the mixing tank shaking during the mixing process and improves the stability of the mixing tank during the mixing process.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. In the initial state, multiple arc-shaped plates fit together to wrap around the first conveying pipe. When materials need to be conveyed into the mixing tank, the locking device releases the locking of the moving part. The first ring and the first spring work together to drive the second ring to move downward. The connecting plate and the connecting rod work together to drive the arc-shaped plate to flip. The arc-shaped plate and the connecting piece work together to form a funnel shape. The first conveying pipe and the second conveying pipe are set up without contact, which helps to reduce the probability of vibration of the first conveying pipe caused by the vibration of the second conveying pipe. This improves the stability of liquid inlet and the convenience for operators to observe the material flow rate. 2. In the initial state, the lower end of the second ring abuts against the upper end of the limiting plate. Pressing the guide rod causes it to slide in the moving groove. The upper end of the guide rod, in conjunction with the second spring, drives the limiting plate to slide in the receiving groove, eventually positioning it completely within the receiving groove. When the arc-shaped plate needs to be folded up, the second ring is moved upward. When the second ring contacts the lower end of the limiting plate, it pushes the limiting plate into the receiving groove. When the second ring is completely above the limiting plate, the third spring drives the guide rod to move away from the second conveying pipe. The guide rod and the second spring work together to move the limiting plate away from the second conveying pipe, causing the limiting plate and the second ring to abut against each other, thus completing the limiting operation of the second ring and improving the convenience of positioning the second ring. 3. The fixed connection between the second conveying pipe and the mixing tank helps to reduce the impact of water vortex on the second conveying pipe during solid-liquid mixing, and improves the connection stability between the second conveying pipe and the mixing tank. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the liquid inlet device for a solid-liquid stirred tank.

[0026] Figure 2 This is a schematic diagram designed to highlight the connecting mechanism.

[0027] Figure 3 This is a schematic diagram designed to highlight the structure of the locking mechanism.

[0028] Figure 4 This is a schematic diagram designed to highlight the internal structure of the mixing tank.

[0029] Explanation of reference numerals in the attached drawings: 1. Reagent tank; 2. Stirring device; 21. Stirring box; 22. Drive motor; 23. Rotating shaft; 24. Stirring rod; 25. Support; 3. Material conveying mechanism; 31. Material conveying pipe one; 32. Material conveying pipe two; 4. Connecting mechanism; 41. Arc plate; 42. Connecting piece; 43. Moving part; 431. First ring; 432. Second ring; 433. First spring; 434. Connecting plate; 435. Connecting rod; 44. Locking part; 441. Limiting piece; 442. Second spring; 443. Third spring; 444. Guide rod; 445. Storage groove; 446. Moving groove; 5. Display; 51. Temperature sensor. Detailed Implementation

[0030] The present application will be further described in detail below with reference to all the accompanying drawings.

[0031] This application discloses a liquid inlet device for a solid-liquid stirred tank. Example

[0032] Reference Figure 1A liquid feeding device for a solid-liquid mixing tank includes a reagent tank 1, a feeding mechanism 3, and a stirring device 2. The feeding mechanism 3 is located between the reagent tank 1 and the stirring device 2. The reagent tank 1 feeds the solid-liquid mixture into the stirring device 2 through the feeding mechanism 3.

[0033] Reference Figure 1 The conveying mechanism includes a first conveying pipe 31, a second conveying pipe 32, and a connecting mechanism 4. One end of the first conveying pipe 31 is connected to the reagent tank 1, one end of the second conveying pipe 32 is located inside the stirring device 2, and the other end of the second conveying pipe 32 is located outside the stirring device 2. The connecting mechanism 4 is located between the first conveying pipe 31 and the second conveying pipe 32. During the stirring process, the water vortex of the stirring device 2 will impact the second conveying pipe 32, causing it to shake. The material conveying process adopts a segmented setting, with the first conveying pipe 31 and the second conveying pipe 32 being independent of each other, which helps to reduce the impact of the vibration of the second conveying pipe 32 on the first conveying pipe 31 and the reagent tank 1. The material in the first conveying pipe 31 is conveyed to the second conveying pipe 32 through the connecting mechanism 4. When the device is idle, the connecting mechanism 4 wraps the first conveying pipe 31, improving the stability of the liquid inlet.

[0034] Reference Figure 2 The connecting mechanism 4 includes multiple arc-shaped plates 41, multiple connecting pieces 42, a moving part 43, and a locking part 44. The lower ends of the multiple arc-shaped plates 41 are all vertically hinged to the upper end of the second conveying pipe 32. The multiple arc-shaped plates 41 are arranged circumferentially along the second conveying pipe 32. The arc-shaped plates 41 and the connecting pieces 42 correspond one-to-one. The connecting pieces 42 are fixedly connected between two adjacent arc-shaped plates 41 and are located on the side of the arc-shaped plates 41 away from the second conveying pipe 32. The connecting pieces 42 are made of deformable material. The arc-shaped plates 41 can be flipped along the hinge. During the flipping process of the multiple arc-shaped plates 41, the connecting pieces 42 are stretched. The arc-shaped plates 41 and the connecting pieces 42 cooperate to form a funnel shape. The moving part 43 is located at the upper end of the second conveying pipe 32, and the locking part 44 is located at the upper end of the second conveying pipe 32. In the initial state, multiple arc plates 41 are attached to each other and cover the first conveying pipe 31. When it is necessary to convey materials into the mixing device 2, the locking part 44 releases the locking of the moving part 43. The moving part 43 drives multiple arc plates 41 to flip along the hinge, which improves the convenience for operators to observe the material flow rate.

[0035] Reference Figure 2The moving part 43 includes a first ring 431, a second ring 432, a first spring 433, multiple connecting plates 434, and multiple connecting rods 435. The first ring 431 and the second ring 432 are both sleeved on the outside of the second conveying pipe 32. The first ring 431 is located above the second ring 432 and is fixedly connected to the second conveying pipe 32. The second ring 432 is slidably connected to the second conveying pipe 32 in a vertical direction. The first spring 433 is sleeved on the outside of the second conveying pipe 32 and is located between the first ring 431 and the second ring 432. The two ends of the first spring 433 are fixedly connected to the first ring 431 and the second ring 432 respectively. In its natural state, the first spring 433 pushes the second ring 432 to move away from the first ring 431.

[0036] Reference Figure 2 The connecting plate 434 and the arc plate 41 correspond one-to-one. The connecting plate 434 is fixedly connected to the side with the largest area of ​​the arc plate 41. The connecting rod 435 corresponds one-to-one with the connecting plate 434. Multiple connecting rods 435 are vertically hinged to the upper end of the second ring 432 and arranged circumferentially along the second ring 432. The upper end of the connecting rod 435 is vertically hinged to the lower end of the connecting plate 434. The connecting rod 435 is inclined from bottom to top along the direction from the arc plate 41 to the connecting plate 434. When the locking member 44 releases the locking member 43, the first ring 431 and the first spring 433 cooperate to drive the second ring 432 to move downward. During the downward movement of the second ring 432, the connecting rod 435 moves. The connecting rod 435 and the connecting plate 434 cooperate to drive the arc plate 41 to rotate, which improves the convenience of rotating the arc plate 41.

[0037] Reference Figure 2 and Figure 3The locking member 44 includes a limiting piece 441, a second spring 442, a third spring 443, and a guide rod 444. The second feed tube 32 has a receiving groove 445 vertically. The receiving groove 445 is located below the second ring 432 and is arranged radially along the second feed tube 32. The limiting piece 441 is located in the receiving groove 445 and is slidably connected to the second feed tube 32 radially. When the locking member 44 locks the moving member 43, the lower end of the second ring 432 is in contact with the upper end of the limiting piece 441. The second conveying pipe 32 has a vertically extending movable groove 446 that communicates with the receiving groove 445. The movable groove 446 is located below the receiving groove 445. The guide rod 444 is located inside the receiving groove 445 and is slidably connected to the second conveying pipe 32 radially. The upper end of the guide rod 444 is located inside the receiving groove 445. The second spring 442 is located between the limiting plate 441 and the guide rod 444. The two ends of the second spring 442 are fixedly connected to the limiting plate 441 and the guide rod 444, respectively. When the guide rod 444 is pressed, the guide rod 444 slides inside the movable groove 446. The upper end of the guide rod 444 cooperates with the second spring 442, causing the limiting plate 441 to slide inside the receiving groove 445, and thus completely occupy the receiving groove 445.

[0038] Reference Figure 3 The third spring 443 is located on the side of the guide rod 444 away from the second spring 442. The two ends of the third spring 443 are fixedly connected to the guide rod 444 and the second conveying pipe 32, respectively. In its natural state, the third spring 443 drives the guide rod 444 to move away from the second conveying pipe 32. When the arc plate 41 needs to be retracted, the second ring 432 moves upward. When the second ring 432 contacts the lower end of the limiting piece 441, the second ring 432 pushes the limiting piece 441 to slide into the receiving groove 445. When the second ring 432 is completely above the limiting piece 441, the third spring 443 drives the guide rod 444 to move away from the second conveying pipe 32. The guide rod 444 and the second spring 442 cooperate to drive the limiting piece 441 to move away from the second conveying pipe 32, thereby causing the limiting piece 441 and the second ring 432 to abut against each other, completing the limiting operation of the second ring 432 and improving the convenience of positioning the second ring 432.

[0039] Reference Figure 1 and Figure 4The stirring device 2 includes a stirring tank 21, a drive motor 22, a rotating shaft 23, and multiple stirring rods 24. The drive motor 22 is fixedly connected vertically to the upper end of the stirring tank 21. The output shaft of the drive motor 22 passes through the stirring tank 21 and is fixedly connected coaxially to the rotating shaft 23. The rotating shaft 23 is located inside the stirring tank 21. Multiple stirring rods 24 are fixedly connected to the lower end of the rotating shaft 23 and are arranged circumferentially along the rotating shaft 23. The stirring tank 21 stores solid-liquid mixed materials. The drive motor 22 and the rotating shaft 23 cooperate to drive the multiple stirring rods 24 to rotate, thereby stirring the solid-liquid mixed materials.

[0040] Reference Figure 4 The lower end of the second conveying pipe 32 passes through the mixing tank 21 and is located inside the mixing tank 21. The lower end of the second conveying pipe 32 is fixedly connected to the mixing tank 21. This fixed connection helps reduce the impact of water vortices on the second conveying pipe 32 during solid-liquid mixing, improving the connection stability between the second conveying pipe 32 and the mixing tank 21. The lower end of the second conveying pipe 32 extends to the bottom of the mixing tank 21. This extension helps reduce the impact of the solid-liquid mixture on the liquid surface of the mixing tank 21. Furthermore, the bottom of the mixing tank 21 is a high-shear area, which helps improve the mixing effect of the solid-liquid mixture.

[0041] Reference Figure 1 and Figure 4 A temperature sensor 51 is fixed inside the mixing tank 21, and a display 5 is provided on the outside of the mixing tank 21. The display 5 is electrically connected to the temperature sensor 51 and to the reagent tank 1. The temperature sensor 51 identifies the temperature inside the mixing tank 21 and transmits it to the display 5. The display 5 adjusts the flow rate of the reagent tank 1 according to the temperature change, which helps to reduce the impact of the temperature rise inside the mixing tank 21 on the materials.

[0042] Reference Figure 1 The lower end of the mixing tank 21 is provided with a support 25, which is detachably connected to the mixing tank 21. The support 25 supports the mixing tank 21, which helps to reduce the probability of the mixing tank 21 shaking during the mixing process and improves the stability of the mixing tank 21 during the mixing process.

[0043] The implementation principle of the liquid feeding device of the solid-liquid mixing tank in this application embodiment is as follows: In the initial state, multiple arc-shaped plates 41 are attached to each other to wrap the first conveying pipe 31. When it is necessary to convey material into the mixing tank 21, the guide rod 444 is pressed. The guide rod 444 and the second spring 442 cooperate to drive the limiting plate 441 to slide into the receiving groove 445. When the limiting plate 441 and the second ring 432 are separated, the first spring 433 pushes the second ring 432 to move downward. The connecting rod 435 and the connecting plate 434 cooperate to drive the arc plate 41 to flip. The arc plate 41 and the connecting plate 42 cooperate to form a funnel shape. The material in the first conveying pipe 31 is conveyed into the second conveying pipe 32 through the area formed by the arc plate 41 and the connecting plate 42. When the arc plate 41 needs to be retracted, the second ring 432 is moved upward. When the second ring 432 contacts the lower end of the limiting plate 441, the second ring 432 pushes the limiting plate 441 to slide into the receiving groove 445. When the second ring 432 is completely above the limiting plate 441, the third spring 443 drives the guide rod 444 to move away from the second conveying pipe 32. The guide rod 444 and the second spring 442 work together to drive the limiting plate 441 to move away from the second conveying pipe 32, thereby causing the limiting plate 441 and the second ring 432 to abut against each other, completing the limiting operation of the second ring 432. The conveying process adopts a segmented setting, with the first conveying pipe 31 and the second conveying pipe 32 being independent of each other. This helps to reduce the impact of the vibration of the second conveying pipe 32 on the first conveying pipe 31 and the medicine tank 1. Furthermore, the operator can judge the material flow rate based on the material output at the outlet of the first conveying pipe 31, which improves the stability of the liquid inlet.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A liquid feeding device for a solid-liquid stirred tank, comprising a reagent tank (1), a conveying mechanism (3), and a stirring device (2), wherein the conveying mechanism (3) is located between the reagent tank (1) and the stirring device (2), characterized in that: The material conveying mechanism (3) includes a first conveying pipe (31), a second conveying pipe (32), and a connecting mechanism (4). One end of the first conveying pipe (31) is connected to the medicine tank (1). One end of the second conveying pipe (32) is located inside the stirring device (2), and the other end of the second conveying pipe (32) is located outside the stirring device (2). The connecting mechanism (4) is located between the first conveying pipe (31) and the second conveying pipe (32). The connecting mechanism (4) is used to connect the first conveying pipe (31) and the second conveying pipe (32).

2. The liquid inlet device for a solid-liquid stirred tank according to claim 1, characterized in that: The stirring device (2) includes a stirring tank (21), a drive motor (22), a rotating shaft (23), and several stirring rods (24). The drive motor (22) is fixedly connected to the upper end of the stirring tank (21) in a vertical direction. The output shaft of the drive motor (22) passes through the stirring tank (21) and is fixedly connected to the rotating shaft (23) coaxially. The rotating shaft (23) is located inside the stirring tank (21). Several stirring rods (24) are fixedly connected to the lower end of the rotating shaft (23) and are arranged circumferentially along the rotating shaft (23).

3. The liquid inlet device for a solid-liquid stirred tank according to claim 2, characterized in that: The lower end of the second conveying pipe (32) passes through the mixing tank (21) and is located inside the mixing tank (21). The lower end of the second conveying pipe (32) is fixedly connected to the mixing tank (21).

4. The liquid inlet device for a solid-liquid stirred tank according to claim 3, characterized in that: The lower end of the second feed pipe (32) extends to the bottom of the mixing tank (21).

5. The liquid inlet device for a solid-liquid stirred tank according to claim 1, characterized in that: The connecting mechanism (4) includes several arc-shaped plates (41), several connecting pieces (42), a moving part (43), and a locking part (44). The lower ends of the several arc-shaped plates (41) are all vertically hinged to the upper end of the second conveying pipe (32). The several arc-shaped plates (41) are arranged circumferentially along the second conveying pipe (32). The arc-shaped plates (41) correspond one-to-one with the connecting pieces (42). The connecting pieces (42) are fixedly connected between two adjacent arc-shaped plates (41) and located on the side of the arc-shaped plates (41) away from the second conveying pipe (32). The connecting pieces (42) are made of deformable material. The moving part (43) is located at the upper end of the second conveying pipe (32). The moving part (43) is used to drive the several arc-shaped plates (41) to rotate. The locking part (44) is located at the upper end of the second conveying pipe (32). The locking part (44) is used to fix the moving part (43).

6. The liquid inlet device for a solid-liquid stirred tank according to claim 5, characterized in that: The movable component (43) includes a first ring (431), a second ring (432), a first spring (433), several connecting plates (434), and several connecting rods (435). The connecting plates (434) correspond one-to-one with the arc-shaped plate (41). The connecting plates (434) are fixedly connected to the side with the largest area of ​​the arc-shaped plate (41). The first ring (431) and the second ring (432) are both sleeved on the outside of the second conveying pipe (32). The first ring (431) is located above the second ring (432) and is fixedly connected to the second conveying pipe (32). The second ring (432) is slidably connected to the second conveying pipe (32) in the vertical direction. The first spring (433) is sleeved on the outside of the second conveying pipe (32) and is located on the side with the largest area of ​​the arc-shaped plate (41). Between the ring (431) and the second ring (432), the two ends of the first spring (433) are fixedly connected to the first ring (431) and the second ring (432) respectively. In the natural state, the first spring (433) drives the second ring (432) to move away from the first ring (431). The connecting rod (435) corresponds to the connecting plate (434) one by one. Several connecting rods (435) are vertically hinged to the upper end of the second ring (432) and arranged around the second ring (432). The upper end of the connecting rod (435) is vertically hinged to the lower end of the connecting plate (434). The connecting rod (435) is inclined from bottom to top along the direction of the arc plate (41) pointing to the connecting plate (434).

7. The liquid inlet device for a solid-liquid stirred tank according to claim 5, characterized in that: The locking component (44) includes a limiting piece (441), a second spring (442), a third spring (443), and a guide rod (444). The second feed pipe (32) has a vertically oriented receiving groove (445), which is located below the second ring (432) and radially arranged along the second feed pipe (32). The limiting piece (441) is located inside the receiving groove (445) and is slidably connected to the second feed pipe (32) radially. The second feed pipe (32) has a vertically oriented moving groove (446) that communicates with the receiving groove (445), which is located below the receiving groove (445). The guide rod (444) is located in the receiving groove (445). Inside, and slidably connected to the second conveying pipe (32) radially. The upper end of the guide rod (444) is located inside the receiving groove (445). The second spring (442) is located between the limiting piece (441) and the guide rod (444). The two ends of the second spring (442) are fixedly connected to the limiting piece (441) and the guide rod (444) respectively. The third spring (443) is located on the side of the guide rod (444) away from the second spring (442). The two ends of the third spring (443) are fixedly connected to the guide rod (444) and the second conveying pipe (32) respectively. In the natural state, the third spring (443) drives the guide rod (444) to move away from the second conveying pipe (32).

8. The liquid inlet device for a solid-liquid stirred tank according to claim 2, characterized in that: A temperature sensor (51) is fixedly installed inside the mixing tank (21), and a display (5) is installed on the outside of the mixing tank (21). The display (5) is electrically connected to the temperature sensor (51) and to the medicine tank (1).

9. The liquid inlet device for a solid-liquid stirred tank according to claim 2, characterized in that: The lower end of the mixing tank (21) is provided with a support (25), and the support (25) and the mixing tank (21) are detachably connected.

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