A rotary drum agitated viscosity building device

Abstract

The utility model discloses a kind of rotary drum stirring adhesion increasing devices, it is related to material stirring technical field, specifically including fixed bracket and rotary drum body, the rotary drum body is movably connected with fixed bracket, the top of rotary drum body inner cavity is provided with feed valve, the bottom of rotary drum body inner cavity is provided with discharge valve, the middle part of rotary drum body inner cavity is movably connected with stirring rod, the outside wall of stirring rod bottom end is provided with stirring blade;The inner cavity of rotary drum body is provided with scraping mechanism, and the scraping mechanism includes the upper scraping plate movably connected with stirring rod and the lower scraping plate movably connected with stirring rod.It is applied to have scraping, extruding function, utilize scraping structure, realize extrusion to material, and in the extrusion process of material, utilize lower scraping plate to realize the scraping of material adhered to the surface of rotary drum body inner wall, stirring blade and stirring rod three, improve discharge speed, reduce the amount of material adhered to the device, facilitate the cleaning of the device.

Description

Technical Field

[0001] This utility model relates to the field of material mixing technology, specifically a rotary drum mixing and thickening device. Background Technology

[0002] Rotary drum agitators, also known as drum mixers, operate by using a power supply mechanism to rotate the drum, thereby thoroughly mixing the materials inside. They are widely used in industrial production, especially in processes involving the mixing, dehydration, and concentration of liquids with low viscosity coefficients.

[0003] In the prior art, when the rotary drum stirring and thickening device is in use, the drum rotates at a certain speed. Under the action of centrifugal force, the material moves along the drum wall and is thrown upwards, adhering to the inner wall of the drum, which affects the mixing of the material. After the material is stirred and thickened, it needs to be discharged through the discharge port. However, some of the material is firmly adhered to the inner surface of the drum wall and the stirring structure, making it difficult to completely discharge by its own gravity and the centrifugal force generated by the rotation of the drum, increasing the difficulty of cleaning the device. Based on this, this application proposes a rotary drum stirring and thickening device. Utility Model Content

[0004] This invention provides a rotary drum stirring and thickening device, which solves the problems mentioned in the background art, such as the difficulty of re-mixing materials adhering to the top of the rotary drum due to splashing; and the difficulty of removing materials adhering to the drum wall and stirring structure, which increases the difficulty of cleaning the device.

[0005] This utility model provides the following technical solution: a rotary drum stirring and thickening device, including a fixed frame and a rotary drum body, wherein the rotary drum body is movably connected to the fixed frame, a feed valve is provided at the top of the inner cavity of the rotary drum body, a discharge valve is provided at the bottom of the inner cavity of the rotary drum body, a stirring rod is movably connected to the middle of the inner cavity of the rotary drum body, and a stirring blade is provided on the outer side wall at the bottom end of the stirring rod. The inner cavity of the drum body is provided with a scraping mechanism, which includes an upper scraper plate movably connected to the stirring rod and a lower scraper plate movably connected to the stirring rod. The lower scraper plate contacts the side of the upper scraper plate near the discharge valve, and the lower scraper plate is connected to the upper scraper plate through a rotating mechanism. The lower scraper plate is provided with a first through groove adapted to the stirring blade. The upper scraper plate is connected to the drum body through a first lifting structure, and the upper scraper plate is provided with a second through groove and a third through groove adapted to the stirring blade. A sealing plate is movably connected to the inner cavity of the second through groove, and the sealing plate is connected to the upper scraper plate through a lifting and rotating structure.

[0006] Preferably, a sealing sleeve is connected to the top of the fixed frame, and a rotating shaft is movably connected to the middle of the inner cavity of the sealing sleeve. The top of the rotating shaft is movably connected to the fixed frame, and the bottom of the rotating shaft is connected to the drum body. A suction pipe is provided on the rotating shaft. The inner cavity of the sealing sleeve and the inner cavity of the drum body are connected through the suction pipe. A suction valve is provided on one side of the sealing sleeve, and the suction pipe is located above the feed valve.

[0007] Preferably, the top end of the stirring rod extends to the outside of the drum body and is fixed with a fixing plate. The fixing plate is connected to the drum body through a second lifting structure. The fixing plate is provided with a first driving structure and a connecting sleeve. The stirring rod is driven to rotate by the first driving structure. The connecting sleeve is movably connected to the top end of the stirring rod. A first connecting port is connected to the middle of the inner cavity of the connecting sleeve, and a second connecting port is provided on one side of the top of the inner cavity of the connecting sleeve. A flow channel is provided on the stirring rod. One end of the flow channel is connected to the first connecting port, and the other end of the first connecting port is connected to the second connecting port through the inner cavity of the connecting sleeve.

[0008] Preferably, the rotating mechanism includes a first connecting rod, a guide rail connected to the side of the upper scraper away from the discharge valve, a first rotating plate movably sleeved on the outer ring of the guide rail, and a second driving structure for driving the first rotating plate to rotate. The upper scraper is provided with a first guide groove. The first connecting rod is movably connected to the inner cavity of the first guide groove. One end of the first connecting rod is connected to the first rotating plate, and the other end of the first connecting rod is connected to the lower scraper.

[0009] Preferably, the lifting and rotating structure includes a second rotating plate movably connected to the end of the upper scraper away from the lower scraper, a third driving structure for driving the second rotating plate to rotate, and a lifting ring connected to the second rotating plate through the third lifting structure. The lifting ring is connected to the end of the sealing plate away from the discharge valve through a second connecting rod, and the lifting ring is connected to the end of the second rotating plate away from the lower scraper through a telescopic guide rod.

[0010] Preferably, the distance between the inner wall of the lifting ring and the inner wall of the drum body is less than the distance between the stirring blade and the inner wall of the drum body; the distance between the first rotating plate and the upper scraper plate is not less than the thickness of the sealing plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This rotary drum stirring and thickening device, through the rotation of the stirring rod and stirring blades, and the second lifting structure driving the stirring blades to act at different height positions, can make the material fully mixed in the radial, axial and vertical directions, which helps the material to react more fully and increase viscosity more uniformly.

[0012] 2. This rotary drum mixing and thickening device features scraping and extrusion functions. Utilizing a scraping structure, it extrudes the material. During this extrusion process, the lower scraper removes material adhering to the inner wall of the drum body, the mixing blades, and the mixing rod, increasing the discharge speed while reducing the amount of material adhering to the device, facilitating cleaning. Furthermore, during mixing, the scraping structure removes material splashed onto the top of the drum body, allowing this material to participate in the mixing process again. Attached Figure Description

[0013] Figure 1 This is a front view of a rotary drum stirring and thickening device proposed in this utility model; Figure 2 This is a schematic cross-sectional view of the drum body of this utility model. Figure 3 This is a schematic diagram showing the positions of the stirring rod and the scraping mechanism in this utility model. Figure 4 This is a schematic diagram of the top of the scraping mechanism of this utility model. Figure 5 The structure of this utility model Figure 4 Explosion diagram; Figure 6 This is a cross-sectional schematic diagram of the stirring rod structure of this utility model.

[0014] In the diagram: 1. Fixed frame; 2. Sealing sleeve; 3. Suction valve; 4. Fourth drive structure; 5. Drum body; 6. Feed valve; 7. Discharge valve; 8. First lifting structure; 9. Second lifting structure; 10. Fixed plate; 11. First drive structure; 12. Rotating shaft; 13. Suction pipe; 14. Stirring rod; 15. Lower scraper plate; 16. Upper scraper plate; 17. First through groove; 18. Sealing plate; 19. Second connecting rod; 20. Telescopic guide rod; 21. Guide rail; 22. Third drive structure; 23. First connecting rod; 24. Lifting ring; 25. First rotating plate; 26. Second through groove; 27. Third through groove; 28. Second drive structure; 29. ​​Limiting groove; 30. Second rotating plate; 31. Third lifting structure; 32. Flow channel; 33. Connecting sleeve; 34. First connecting port; 35. Second connecting port; 36. Stirring blade; 37. First guide groove. Detailed Implementation

[0015] 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.

[0016] This utility model provides an embodiment: Please refer to Figures 1-6 A rotary drum stirring and thickening device includes a fixed frame 1 and a rotary drum body 5. A sealing sleeve 2 is connected to the top of the fixed frame 1. A rotating shaft 12 is movably connected to the middle of the inner cavity of the sealing sleeve 2. The top of the rotating shaft 12 is movably connected to the fixed frame 1, and the bottom of the rotating shaft 12 is connected to the rotary drum body 5. A lower support shaft is connected to the bottom of the rotary drum body 5 and is movably connected to the fixed frame 1. Through the arrangement of the rotating shaft 12 and the lower support shaft, the rotary drum body 5 and the fixed frame 1 are movably connected. A fourth drive structure 4 is provided at the top of the fixed frame 1. The rotating shaft 12 is driven to rotate through the fourth drive structure 4. When the fourth drive structure 4 is working, it can drive the rotating shaft 12 to rotate, which in turn drives the rotary drum body 5 connected to it to rotate, thereby increasing the stirring and thickening speed of the material inside the rotary drum body 5. In embodiment 1, the fourth drive structure 4 is a servo motor with a self-locking function. The servo motor is connected to the rotating shaft 12 through a reducer and a coupling.

[0017] A suction pipe 13 is provided on the rotating shaft 12. The bottom end of the suction pipe 13 extends into the inner cavity of the drum body 5. The inner cavity of the suction pipe 13 is in communication with the inner cavity of the drum body 5. The inner cavity of the sealing sleeve 2 is connected to the inner cavity of the drum body 5 through the suction pipe 13. A suction valve 3 is provided on one side of the sealing sleeve 2. With the suction valve 3, if waste gas is generated during the material stirring and thickening process, the waste gas can be discharged through the suction pipe 13, the inner cavity of the sealing sleeve 2 and the suction valve 3, avoiding the accumulation of gas in the drum body 5. This helps to ensure the smooth progress of the thickening process and the stability of the device operation, making the application adaptable to various needs and improving the adaptability of the application.

[0018] A feed valve 6 is provided at the top of the inner cavity of the drum body 5. The material can enter the inner cavity of the drum body 5 through the feed valve 6. The suction pipe 13 is located above the feed valve 6, which can prevent the material in the drum body 5 from entering the suction pipe 13 and blocking the suction pipe 13. A discharge valve 7 is provided at the bottom of the inner cavity of the drum body 5. The material after stirring and thickening can be discharged through the discharge valve 7.

[0019] A stirring rod 14 is movably connected to the center of the inner cavity of the drum body 5. A stirring blade 36 is provided on the outer wall of the bottom end of the stirring rod 14. The top end of the stirring rod 14 extends to the outside of the drum body 5 and is fixed to a fixing plate 10. The fixing plate 10 is connected to the drum body 5 via a second lifting structure 9. A first driving structure 11 is provided on the fixing plate 10. The stirring rod 14 is driven to rotate by the first driving structure 11. When the first driving structure 11 drives the stirring rod 14 to rotate, the stirring rod 14 can drive the stirring blade 36 to rotate, thereby stirring the material and effectively increasing the viscosity of the material. Furthermore, during use, the second lifting structure 9 can move the stirring rod 14, changing the position of the stirring blade 36 and the stirring rod 14, allowing the stirring blade 36 to stir at different heights within the drum body 5, further accelerating the increase in material viscosity.

[0020] In Example 2, the first drive structure 11 is a servo motor with a self-locking function. The servo motor is connected to the stirring rod 14 through a gear set, and the second lifting structure 9 is an electric telescopic rod.

[0021] In addition, the stirring rod 14 is provided with a flow channel 32, and the two ends of the flow channel 32 are coaxially arranged, such as... Figure 6 As shown, one end of the flow channel 32 is located in the middle of the stirring rod 14, and the other end of the flow channel 32 is located on the outer ring of the stirring rod 14, so that the stirring rod 14 can also achieve precise fluid delivery when it rotates.

[0022] A connecting sleeve 33 is provided on the fixed plate 10. The connecting sleeve 33 is movably connected to the top end of the stirring rod 14. A first connecting port 34 is connected to the middle of the inner cavity of the connecting sleeve 33, and a second connecting port 35 is provided on one side of the top of the inner cavity of the connecting sleeve 33. One end of the flow channel 32 is connected to the first connecting port 34, and the other end of the first connecting port 34 is connected to the second connecting port 35 through the inner cavity of the connecting sleeve 33. When it is necessary to heat or cool the material in the drum body 5, the heating or cooling fluid enters one end of the flow channel 32 through the first connecting port 34, and the fluid in the flow channel 32 can be discharged through the inner cavity of the connecting sleeve 33 and the second connecting port 35. A fluid channel is provided on the stirring blade 36, which is connected to the flow channel 32. Through the setting of the fluid channel, the fluid can flow in the fluid channel, thereby improving the heating or cooling speed of the material.

[0023] The inner cavity of the drum body 5 is provided with a scraping mechanism, which includes an upper scraper 16 movably connected to the stirring rod 14 and a lower scraper 15 movably connected to the stirring rod 14. The lower scraper 15 contacts the side of the upper scraper 16 near the discharge valve 7, and the lower scraper 15 is connected to the upper scraper 16 through a rotating mechanism. The rotating mechanism includes a first connecting rod 23, a guide rail 21 connected to the side of the upper scraper 16 away from the discharge valve 7, a first rotating plate 25 movably sleeved on the outer ring of the guide rail 21, and a second driving structure 28 for driving the first rotating plate 25 to rotate. The upper scraper 16 is provided with a first guide groove 37, and the first connecting rod 23 is movably connected to the inner cavity of the first guide groove 37. One end of the first connecting rod 23 is connected to the first rotating plate 25, and the other end of the first connecting rod 23 is connected to the lower scraper 15. With the rotation mechanism in place, the second drive structure 28 can drive the first rotating plate 25 to rotate when it is working. The first rotating plate 25 can drive the lower scraper plate 15 to rotate via the first connecting rod 23. In embodiment 3, the second drive structure 28 is a servo motor with a self-locking function, and the second drive structure 28 is connected to the first rotating plate 25 via a gear set.

[0024] The lower scraper plate 15 is provided with a first through groove 17 that is adapted to the stirring blade 36.

[0025] The upper scraper 16 is connected to the drum body 5 through the first lifting structure 8. The operation of the first lifting structure 8 can change the position of the upper scraper 16 and the lower scraper 15 inside the drum body 5. When the upper scraper 16 and the lower scraper 15 move, they can scrape off the material adhering to the inner wall of the drum body 5 and squeeze the material, thereby increasing the discharge speed, reducing the amount of material adhering, and facilitating the cleaning of the device.

[0026] The upper scraper plate 16 is provided with a second through groove 26 and a third through groove 27 adapted to the stirring blade 36. The second through groove 26 and the third through groove 27 are arranged in a cross-shaped manner, and under the action of the rotating mechanism, the first through groove 17 can be aligned with the second through groove 26 or the third through groove 27.

[0027] The inner cavity of the second through groove 26 is movably connected to a sealing plate 18. The sealing plate 18 is connected to the upper scraper plate 16 through a lifting and rotating structure. The lifting and rotating structure includes a second rotating plate 30 movably connected to the end of the upper scraper plate 16 away from the lower scraper plate 15, a third driving structure 22 for driving the second rotating plate 30 to rotate, and a lifting ring 24 connected to the second rotating plate 30 through a third lifting structure 31.

[0028] The upper scraper plate 16 is provided with a limiting groove 29. The second rotating plate 30 is movably connected to the inner cavity of the limiting groove 29. The lifting ring 24 is connected to the end of the sealing plate 18 away from the discharge valve 7 via the second connecting rod 19. The lifting ring 24 is connected to the end of the second rotating plate 30 away from the lower scraper plate 15 via the telescopic guide rod 20. With the lifting and rotating structure, when the first through groove 17 and the second through groove 26 are aligned, the third lifting structure 31 can drive the lifting ring 24 to move, thereby sealing the first through groove 17. At this time, the scraper plate formed by the lower scraper plate 15 and the sealing plate 18 can squeeze the material in the drum body 5. When the first through groove 17 and the third through groove 27 are aligned, the hole formed by the first through groove 17 and the third through groove 27 allows the stirring blade 36 to pass through, preventing... When the upper scraper 16 and lower scraper 15 move, the stirring blade 36 restricts their movement. A scraper is provided at the bottom of the hole wall, which can be used to scrape off material adhering to the side wall of the stirring blade 36. An annular scraper is provided in the middle of both the upper and lower scraper plates 16 and 15. The stirring rod 14 has a convex structure, with the outer diameter of its upper end smaller than its lower end. The annular scraper and the upper end of the stirring rod 14 are in a clearance fit, allowing the annular scraper to scrape off material adhering to the lower end of the stirring rod 14. The materials of the scraper and the annular scraper can be set according to requirements and are not limited here. The size of the stirring rod 14 can be set according to requirements and is not limited here. In use, the material inside the drum body 5 only contacts the lower end of the stirring rod 14.

[0029] When the sealing plate 18 is located on the side of the upper scraper plate 16 away from the lower scraper plate 15, the third drive structure 22 drives the second rotating plate 30 to rotate. The second rotating plate 30 can drive the lifting ring 24 to rotate through the telescopic guide rod 20 and the third lifting structure 31. The lifting ring 24 drives the sealing plate 18 to rotate through the second connecting rod 19. The position of the sealing plate 18 can be changed. The sealing plate 18 can be moved to the inner cavity of the second through groove 26 or the inner cavity of the third through groove 27, so as to squeeze out the material that has entered the third through groove 27 or the second through groove 26.

[0030] In Example 3, the third drive structure 22 is a servo motor with a self-locking function. The third drive structure 22 is connected to the second rotating plate 30 through a gear set. The third lifting structure 31 is an electric telescopic rod. The telescopic guide rod 20 includes an inner tube connected to the second rotating plate 30 and an outer tube connected to the lifting ring 24. The inner tube and the outer tube are in a movable sleeve state and can slide relative to each other to form a telescopic guide structure. When the third lifting structure 31 extends or retracts, the length of the telescopic guide rod 20 changes accordingly to realize the telescopic guide function.

[0031] The distance between the inner wall of the lifting ring 24 and the inner wall of the drum body 5 is less than the distance between the stirring blade 36 and the inner wall of the drum body 5, so as to avoid the lifting ring 24 restricting the movement of the stirring blade 36. The size of the lifting ring 24 can be set according to the requirements and is not limited here. The distance between the first rotating plate 25 and the upper scraper plate 16 is not less than the thickness of the sealing plate 18, so as to avoid the first rotating plate 25 affecting the movement of the sealing plate 18. The height of the first rotating plate 25 can be set according to the requirements and is not limited here.

[0032] All electrical components involved in this application are existing technologies. Those skilled in the art can select appropriate models of electrical components according to their needs. No restrictions or elaborations are made here. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies are connected by wires. According to the actual situation, appropriate controllers are selected to meet control requirements. For specific connections and control sequences, please refer to the description below. The electrical connections between each electrical component are completed in the order of their operation. The detailed connection methods are well-known technologies in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0033] In summary: When using this rotary drum stirring and thickening device, the material to be stirred and thickened enters the inner cavity of the rotary drum body 5 through the feed valve 6. The first drive structure 11 drives the stirring rod 14 to rotate, and the stirring rod 14 drives the stirring blade 36 connected to it to stir the material, realizing repeated mixing of the material, which helps to uniformly increase the viscosity of the material. In addition, during the stirring process, the second lifting structure 9 drives the stirring rod 14 and the stirring blade 36 to move, and the material at different heights in the rotary drum body 5 can be exchanged, so that the material is fully mixed in the radial, axial and height directions, further improving the speed of viscosity increase of the material.

[0034] During material discharge, the controller of this application controls the scraping mechanism to work. The first lifting structure 8 drives the upper scraper 16 and the lower scraper 15 to move. The cooperation between the upper scraper 16 and the lower scraper 15 achieves the extrusion of the material and scrapes off the material adhering to the inner wall of the drum body 5 and the lower inner wall of the stirring rod 14, thereby increasing the discharge speed of the thickened material, reducing the amount of material residue in the device, and facilitating the cleaning of the device. Furthermore, when the lower scraper 15 contacts the top of the stirring blade 36, the first lifting structure 8 drives the upper scraper 16 and the lower scraper 15 to move. 5. Move upward to a preset distance to separate the material from the lower scraper plate 15. The third lifting structure 31 drives the sealing plate 18 upward, releasing the sealing plate 18 from the first through groove 17. The rotating mechanism drives the lower scraper plate 15 to rotate until the first through groove 17 and the third through groove 27 are aligned. At this time, the lower scraper plate 15 blocks the second through groove 26. The third lifting structure 31 drives the sealing plate 18 upward, separating the sealing plate 18 from the second through groove 26. The third driving structure 22 drives the sealing plate 18 to rotate, making the sealing plate 18 and the third through groove... Alignment 27, the third lifting structure 31 drives the sealing plate 18 downward, using the sealing plate 18 to seal the first through groove 17. The first lifting structure 8 drives the upper scraper 16 and lower scraper 15 to continue downward, achieving continued compression of the material. When the sealing plate 18 contacts the top of the stirring blade 36, the third lifting structure 31 drives the sealing plate 18 upward, and the stirring blade 36 can be inserted into the hole formed by the first through groove 17 and the third through groove 27. After the sealing plate 18 separates from the third through groove 27, the third driving structure 22 drives the sealing plate 18 to connect with the second through groove 27. When the through slots 26 are aligned, the third lifting structure 31 drives the sealing plate 18 to move down, and the sealing plate 18 is used to re-seal the second through slot 26. When the bottom of the stirring blade 36 is at the same height as the top of the upper scraper 16, the rotating mechanism drives the lower scraper 15 to rotate, so that the first through slot 17 and the second through slot 26 are re-aligned. The sealing plate 18 is used to re-seal the first through slot 17. After the material in the first through slot 17 is squeezed out, the first lifting structure 8 drives the upper scraper 16 and the lower scraper 15 to continue to move down, so as to continue to squeeze the material.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each structure adopt conventional technical means such as bolt connection in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology. The materials and specifications of each component can be selected according to the requirements and are not limited here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rotary drum stirring and thickening device, comprising a fixed frame (1) and a rotary drum body (5), wherein the rotary drum body (5) is movably connected to the fixed frame (1), characterized in that: A feed valve (6) is provided at the top of the inner cavity of the drum body (5), a discharge valve (7) is provided at the bottom of the inner cavity of the drum body (5), a stirring rod (14) is movably connected to the middle of the inner cavity of the drum body (5), and a stirring blade (36) is provided on the outer side wall of the bottom end of the stirring rod (14). The inner cavity of the drum body (5) is provided with a scraping mechanism. The scraping mechanism includes an upper scraper plate (16) movably connected to the stirring rod (14) and a lower scraper plate (15) movably connected to the stirring rod (14). The lower scraper plate (15) contacts the side of the upper scraper plate (16) near the discharge valve (7), and the lower scraper plate (15) is connected to the upper scraper plate (16) through a rotating mechanism. The lower scraper plate (15) is provided with a first through groove (17) adapted to the stirring blade (36). The upper scraper plate (16) is connected to the drum body (5) through a first lifting structure (8). The upper scraper plate (16) is provided with a second through groove (26) and a third through groove (27) adapted to the stirring blade (36). The inner cavity of the second through groove (26) is movably connected with a sealing plate (18), and the sealing plate (18) is connected to the upper scraper plate (16) through a lifting and rotating structure.

2. The rotary drum stirring and thickening device according to claim 1, characterized in that: The top of the fixed frame (1) is connected to a sealing sleeve (2), and the middle of the inner cavity of the sealing sleeve (2) is movably connected to a rotating shaft (12). The top of the rotating shaft (12) is movably connected to the fixed frame (1), and the bottom of the rotating shaft (12) is connected to the drum body (5). A suction pipe (13) is provided on the rotating shaft (12). The inner cavity of the sealing sleeve (2) is connected to the inner cavity of the drum body (5) through the suction pipe (13). A suction valve (3) is provided on one side of the sealing sleeve (2), and the suction pipe (13) is located above the feed valve (6).

3. The rotary drum stirring and thickening device according to claim 1, characterized in that: The top end of the stirring rod (14) extends to the outside of the drum body (5) and is fixed with a fixing plate (10). The fixing plate (10) is connected to the drum body (5) through a second lifting structure (9). The fixing plate (10) is provided with a first driving structure (11) and a connecting sleeve (33). The stirring rod (14) is driven to rotate by the first driving structure (11). The connecting sleeve (33) is movably connected to the top end of the stirring rod (14). The middle of the inner cavity of the connecting sleeve (33) is connected to a first connecting port (34). A second connecting port (35) is provided on one side of the top of the inner cavity of the connecting sleeve (33). The stirring rod (14) is provided with a flow channel (32). One end of the flow channel (32) is connected to the first connecting port (34). The other end of the flow channel (32) is connected to the second connecting port (35) through the inner cavity of the connecting sleeve (33).

4. The rotary drum stirring and thickening device according to claim 1, characterized in that: The rotating mechanism includes a first connecting rod (23), a guide rail (21) connected to the side of the upper scraper plate (16) away from the discharge valve (7), a first rotating plate (25) movably sleeved on the outer ring of the guide rail (21), and a second driving structure (28) for driving the first rotating plate (25) to rotate. The upper scraper plate (16) is provided with a first guide groove (37). The first connecting rod (23) is movably connected to the inner cavity of the first guide groove (37). One end of the first connecting rod (23) is connected to the first rotating plate (25), and the other end of the first connecting rod (23) is connected to the lower scraper plate (15).

5. The rotary drum stirring and thickening device according to claim 4, characterized in that: The lifting and rotating structure includes a second rotating plate (30) movably connected to the end of the upper scraper plate (16) away from the lower scraper plate (15), a third driving structure (22) for driving the second rotating plate (30) to rotate, and a lifting ring (24) connected to the second rotating plate (30) through a third lifting structure (31). The lifting ring (24) is connected to the end of the sealing plate (18) away from the discharge valve (7) through a second connecting rod (19). The lifting ring (24) is connected to the end of the second rotating plate (30) away from the lower scraper plate (15) through a telescopic guide rod (20).

6. The rotary drum stirring and thickening device according to claim 5, characterized in that: The distance between the inner wall of the lifting ring (24) and the inner wall of the drum body (5) is less than the distance between the stirring blade (36) and the inner wall of the drum body (5); the distance between the first rotating plate (25) and the upper scraper plate (16) is not less than the thickness of the sealing plate (18).

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