High-efficiency energy-saving corrosion-resistant sulfur-removing stirrer

Abstract

The utility model relates to the technical field of stirring equipment, concretely to a kind of efficient energy-saving anticorrosion sulfur-removing mixer, including tank body, tank body side is equipped with feed pipe, lower end is equipped with discharge pipe, top is equipped with top cover, and there is exhaust pipe on top cover, each pipe is with valve, there is stirring assembly in tank body, top cover is equipped with driving assembly and lifting assembly, driving assembly contains first motor, shaft etc., first motor is connected with shaft through coupling, drives stirring assembly rotation, multiple sealing anticorrosion such as mechanical seal, stirring assembly includes stirring rod, positioning frame and stirring vane, stirring rod is slidably connected with shaft, lifting assembly contains second motor, driving rod etc., can drive stirring assembly lifting, and the lifting amplitude can be changed by adjusting structure, the equipment realizes all-around stirring, improves efficiency, enhances corrosion resistance, and is applicable to chemical and other fields sulfur-containing material processing.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, specifically a high-efficiency, energy-saving, corrosion-resistant, and desulfurization mixer. Background Technology

[0002] In many industrial production fields, such as chemical, environmental protection, and metallurgy, mixing operations are crucial. However, existing mixers have revealed numerous problems when dealing with complex operating conditions. Traditional mixers' impellers can only rotate along their own axis. Once the mixing motor is installed, the impeller cannot reciprocate within the container, which greatly limits its mixing range. For large mixing containers or situations with uneven material distribution, the fixed impeller position makes it difficult to fully mix the material at the bottom and top of the container, resulting in low mixing efficiency and failing to meet the demands of large-scale, high-efficiency production.

[0003] In some processes that require the treatment of sulfur-containing substances, such as desulfurization in petroleum refining, corrosive gases and liquids are generated during the stirring process. Insufficient sealing at the stirring shaft can cause severe corrosion to the agitator, which not only affects the stirring effect but also increases the cost of equipment maintenance and replacement. Utility Model Content

[0004] Technical problems to be solved: To address the shortcomings of existing technologies, this utility model provides a high-efficiency, energy-saving, corrosion-resistant, and desulfurization mixer.

[0005] Technical solution:

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency, energy-saving, corrosion-resistant, and desulfurization mixer, comprising a tank body, an inlet pipe on one side of the tank body, an outlet pipe at the lower end of the tank body, a top cover on the top of the tank body, an exhaust pipe on the top cover, valves on the inlet pipe, the outlet pipe, and the exhaust pipe, an agitation assembly inside the tank body, and a drive assembly for driving the agitation assembly to rotate and a lifting assembly for driving the agitation assembly to rise and fall at the upper end of the top cover; The drive assembly includes a first motor, a rotating shaft, a frame, and a mechanical seal. The mechanical seal is fixed to the upper end of the top cover. The first motor is mounted on the upper end of the frame. A positioning flange is provided at the lower end of the frame and is mounted on the upper end of the top cover. The output end of the first motor is connected to the rotating shaft via a coupling. The rotating shaft passes through the mechanical seal and is inserted into the tank. The stirring assembly includes a stirring rod, a positioning frame, and a stirring impeller. The stirring rod is inserted into the rotating shaft and rotates synchronously with the rotating shaft. The stirring rod is slidably connected to the rotating shaft. The stirring impeller is fixed at the lower end of the stirring rod. A cylindrical positioning block is rotatably set inside the positioning frame through a sealed bearing. The stirring rod passes through the cylindrical positioning block and is fixedly connected to the cylindrical positioning block. A side block is provided on one side of the positioning frame.

[0007] To improve the stability of the stirring rod during use, the present invention includes the following improvements: a rectangular protrusion is provided on the outer wall of the stirring rod, the rectangular protrusion and the stirring rod are integrated into one structure and are slidably connected to the rotating shaft; the side block and the positioning frame are integrated into one structure; a second slot is provided inside the rotating shaft, and the stirring rod and the rectangular protrusion are inserted into the second slot and are tightly fitted to the rotating shaft; a cavity is provided on the positioning frame, a cylindrical positioning block is inserted into the cavity, the outer ring of the sealing bearing is interference-fitted with the inner wall of the cavity, and the inner ring of the sealing bearing is interference-fitted with the outer wall of the cylindrical positioning block.

[0008] To improve the stability of the drive assembly during use, the present invention includes the following improvements: the drive assembly further includes a sealing cup, a motor mounting flange, and a positioning bearing. The positioning bearing is mounted on the upper end of the mechanical seal, the sealing cup is mounted on the lower end of the positioning flange and penetrates the top cover, and both the positioning bearing and the sealing cup are penetrated by a rotating shaft. The lower end of the first motor is provided with a motor mounting flange, which is fixedly mounted on the upper end of the frame.

[0009] To facilitate adjustment of the lifting range of the stirring impeller, the present invention includes the following improvements: the lifting assembly comprises a second motor, a drive rod, a horizontal frame, a sealing seat, and a vertical rod. The sealing seat is fixed to the upper end of the top cover. The vertical rod vertically penetrates the top cover and the sealing seat and is inserted into the tank body. The vertical rod is slidably connected to the sealing seat. The bottom end of the vertical rod is connected to a side block. A top plate is fixedly installed at the top end of the vertical rod. A positioning seat is provided at the lower end of the horizontal frame. The positioning seat is fixed to the upper end of the top plate by screws. A guide groove is provided on the horizontal frame. The drive rod penetrates the guide groove and is slidably connected to the horizontal frame. The second motor is fixed above the top cover. A disc is provided at the output end of the second motor. The rear end of the drive rod is fixed at the edge of the disc. The vertical rod and the sealing seat are tightly fitted. Both the vertical rod and the drive rod are cylindrical structures. The inner ring of the sealing seat is provided with multiple sealing rings penetrated by the vertical rod.

[0010] Furthermore, the present invention includes the following improvements: the middle part of the positioning seat is provided with a first slot, the lower end of the crossbar is provided with a rectangular positioning block that is inserted into the first slot and slidably connected with the positioning seat, the middle part of the positioning seat is also provided with a locking rod, the locking rod passes through the positioning seat and one end abuts against the rectangular positioning block, and the locking rod is threadedly connected to the positioning seat. Multiple positioning holes are arranged in an array from the edge of the disk toward the center of the disk. The rear end of the drive rod is fixed to the front end of the disk by a locking bolt, which passes through the positioning hole and is inserted into the drive rod.

[0011] Beneficial effects:

[0012] Compared with the prior art, this utility model provides a high-efficiency, energy-saving, corrosion-resistant, and desulfurization mixer, which has the following beneficial effects: Achieve all-around mixing and improve mixing efficiency: Traditional mixers can only rotate the impeller in a fixed position. This invention, through the linkage of the lifting component and the mixing component, enables the mixing impeller to reciprocate while rotating: the second motor drives the disc, drive rod, and cross frame in linkage, and pulls the mixing rod and impeller up and down through the vertical rod and positioning frame, covering materials at different levels above and below the tank. This solves the problem of "uneven mixing of materials caused by mixing in a fixed position", greatly improves mixing efficiency, and meets the needs of large-scale production.

[0013] Multiple sealing designs enhance corrosion resistance: To address the corrosiveness of sulfur-containing materials during mixing, the equipment employs a multi-seal structure: mechanical seals work in conjunction with positioning bearings to prevent leakage at the connection between the rotating shaft and the top cover; a sealing cup further enhances the seal at the shaft penetration point; and the sealed bearings within the positioning frame ensure the rotation of the cylindrical positioning block while preventing material from seeping into the positioning frame—the synergistic effect of these multiple seals significantly improves the equipment's corrosion resistance and reduces maintenance costs.

[0014] The structure is stable and reliable, extending the equipment's lifespan. The stability of each component is enhanced through precise coordination: the first motor is fixed by the frame, positioning flange, and motor mounting flange, and the rotating shaft is guaranteed to rotate stably by positioning bearing and coupling; the rectangular protrusion of the stirring rod fits tightly with the second slot of the rotating shaft to ensure the synchronization of rotation and lifting; the vertical rod fits tightly with the sealing seat, and the drive rod slides along the guide groove to avoid shaking. Attached Figure Description

[0015] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention; Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention; Figure 3 This utility model Figure 1 The main view; Figure 4 This is a schematic diagram of the drive component in this utility model; Figure 5 This is a three-dimensional structural diagram of the stirring assembly of this utility model; Figure 6 This is a schematic diagram of the planar structure of the stirring assembly of this utility model; Figure 7 This utility model Figure 1 A magnified schematic diagram of the partial structure at point A in the middle; In the diagram: 1. Tank body; 2. Feed pipe; 3. Discharge pipe; 4. Exhaust pipe; 5. Top cover; 6. First motor; 7. Motor mounting flange; 8. Positioning flange; 9. Mechanical seal; 10. Sealing cup; 11. Rotating shaft; 12. Stirring rod; 13. Positioning frame; 14. Cylindrical positioning block; 15. Side block; 16. Stirring impeller; 17. Vertical rod; 18. Sealing seat; 19. Top plate; 20. Positioning seat; 21. First empty slot; 22. Rectangular positioning block; 23. Locking rod; 24. Horizontal frame; 25. Guide groove; 26. Drive rod; 27. Disc; 28. Positioning hole; 29. ​​Second motor; 30. Locking bolt; 31. Frame; 32. Coupling; 33. Positioning bearing. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-7 The present invention relates to a high-efficiency, energy-saving, corrosion-resistant, and desulfurization mixer, comprising a tank body 1, a feed pipe 2 on one side of the tank body 1, a discharge pipe 3 at the lower end of the tank body 1, a top cover 5 on the top of the tank body 1, an exhaust pipe 4 on the top cover 5, and valves on the feed pipe 2, the discharge pipe 3, and the exhaust pipe 4. The tank body 1 contains a mixing assembly, and the top cover 5 has a drive assembly for rotating the mixing assembly and a lifting assembly for raising and lowering the mixing assembly. The drive assembly includes a first motor 6, a rotating shaft 11, a frame 31, and a mechanical seal 9. The mechanical seal 9 is fixed to the upper end of the top cover 5. The first motor 6 is mounted on the upper end of the frame 31. The lower end of the frame 31 is provided with a positioning flange 8, which is mounted on the upper end of the top cover 5. The output end of the first motor 6 is connected to the rotating shaft 11 through a coupling 32. The rotating shaft 11 passes through the mechanical seal 9 and is inserted into the tank body 1. The stirring assembly includes a stirring rod 12, a positioning frame 13, and a stirring impeller 16. The stirring rod 12 is inserted into the rotating shaft 11 and rotates synchronously with the rotating shaft 11. The stirring rod 12 is slidably connected to the rotating shaft 11. The stirring impeller 16 is fixed at the lower end of the stirring rod 12. A cylindrical positioning block 14 is rotatably set inside the positioning frame 13 through a sealed bearing. The stirring rod 12 passes through the cylindrical positioning block 14 and is fixedly connected to the cylindrical positioning block 14. A side block 15 is provided on one side of the positioning frame 13.

[0018] Material feeding stage: Open the valve on the feed pipe 2, and the sulfur-containing material to be stirred enters the tank 1 through the feed pipe 2; the top cover 5 seals the top of the tank 1 to prevent material splashing, and the valves of the exhaust pipe 4 and the discharge pipe 3 are closed at this time to ensure that a relatively closed stirring space is formed inside the tank 1.

[0019] The stirring assembly is started to achieve basic stirring: The drive assembly also includes a sealing cup 10, a motor mounting flange 7, and a positioning bearing 33. The positioning bearing 33 is mounted on the upper end of the mechanical seal 9, and the sealing cup 10 is mounted on the lower end of the positioning flange 8 and passes through the top cover 5. The positioning bearing 33 and the sealing cup 10 are both penetrated by the rotating shaft 11. The lower end of the first motor 6 is provided with a motor mounting flange 7, which is fixedly mounted on the upper end of the frame 31.

[0020] The first motor 6 is started: The first motor 6 is fixed to the upper end of the frame 31 via the motor mounting flange 7. The positioning flange 8 at the lower end of the frame 31 is connected to the top cover 5, providing stable support for the first motor 6. The output end of the first motor 6 drives the rotating shaft 11 to rotate via the coupling 32. The positioning bearing 33 passes through the mechanical seal 9 and is sleeved on the outside of the rotating shaft 11, which not only ensures the stability of the rotation of the rotating shaft 11, but also works with the mechanical seal 9 to prevent corrosive gases or liquids from leaking upwards from the tank 1. The sealing cup 10 is installed at the lower end of the positioning flange 8 and passes through the top cover 5, further enhancing the sealing at the connection between the rotating shaft 11 and the top cover 5.

[0021] The outer wall of the stirring rod 12 is provided with a rectangular protrusion. The rectangular protrusion and the stirring rod 12 are an integral structure and are slidably connected to the rotating shaft 11. The side block 15 and the positioning frame 13 are an integral structure. The rotating shaft 11 is provided with a second cavity. The stirring rod 12 and the rectangular protrusion are inserted into the second cavity and are tightly fitted with the rotating shaft 11. The positioning frame 13 is provided with a cavity. The cylindrical positioning block 14 is inserted into the cavity. The outer ring of the sealing bearing is interference-fitted with the inner wall of the cavity, and the inner ring of the sealing bearing is interference-fitted with the outer wall of the cylindrical positioning block 14.

[0022] When the rotating shaft 11 rotates, its internal second cavity fits tightly against the rectangular protrusion on the outer wall of the stirring rod 12, causing the stirring rod 12 to rotate synchronously (the rectangular protrusion and the stirring rod 12 are integrated to ensure stable force transmission). The stirring impeller 16 fixed at the lower end of the stirring rod 12 rotates with the stirring rod 12, performing preliminary stirring of the material in the tank 1.

[0023] Meanwhile, the stirring rod 12 passes through the cylindrical positioning block 14 inside the positioning frame 13 and is fixedly connected to it. The cavity of the positioning frame 13 is equipped with a sealed bearing. The outer ring of the sealed bearing is interference-fitted with the inner wall of the cavity, and the inner ring is interference-fitted with the outer wall of the cylindrical positioning block 14. This ensures that the cylindrical positioning block 14 rotates synchronously with the stirring rod 12, and also prevents the material in the tank 1 from seeping into the interior of the positioning frame 13 through the sealing effect of the sealed bearing, thus protecting the positioning frame 13 and the side block 15 (the side block 15 and the positioning frame 13 are designed as an integrated unit) from corrosion.

[0024] Activate the lifting assembly to achieve all-around three-dimensional mixing: The lifting assembly includes a second motor 29, a drive rod 26, a horizontal frame 24, a sealing seat 18, and a vertical rod 17. The sealing seat 18 is fixed to the upper end of the top cover 5. The vertical rod 17 vertically penetrates the top cover 5 and the sealing seat 18 and is inserted into the tank body 1. The vertical rod 17 is slidably connected to the sealing seat 18. The bottom end of the vertical rod 17 is connected to a side block 15. The top end of the vertical rod 17 is fixedly provided with a top plate 19. The lower end of the horizontal frame 24 is provided with a positioning seat 20, which is fixed to the top plate by screws. At the upper end of 19, a guide groove 25 is provided on the cross frame 24, and the drive rod 26 passes through the guide groove 25 and is slidably connected to the cross frame 24. The second motor 29 is fixed above the top cover 5, and a disc 27 is provided at the output end of the second motor 29. The rear end of the drive rod 26 is fixed at the edge of the disc 27. The vertical rod 17 is tightly fitted with the sealing seat 18. Both the vertical rod 17 and the drive rod 26 are cylindrical structures. The inner ring of the sealing seat 18 is provided with multiple sealing rings that are penetrated by the vertical rod 17.

[0025] The middle part of the positioning seat 20 is provided with a first slot 21, and the lower end of the cross frame 24 is provided with a rectangular positioning block 22 that is inserted into the first slot 21 and slidably connected with the positioning seat 20. The middle part of the positioning seat 20 is also provided with a locking rod 23, which passes through the positioning seat 20 and abuts against the rectangular positioning block 22 at one end. The locking rod 23 is threadedly connected to the positioning seat 20. Multiple positioning holes 28 are arranged in an array at the edge of the disk 27 toward the axis of the disk 27. The rear end of the drive rod 26 is fixed to the front end of the disk 27 by a locking bolt 30. The locking bolt 30 passes through the positioning hole 28 and is inserted into the drive rod 26.

[0026] Start the second motor 29: The second motor 29 is fixed above the top cover 5, and its output end drives the disc 27 to rotate. The rear end of the drive rod 26 on the edge of the disc 27 is fixed to the designated positioning hole 28 by the locking bolt 30 (the positioning hole 28 is arranged in a row along the axis of the disc 27), and the front end passes through the guide groove 25 on the cross frame 24, and slides back and forth in the guide groove 25 as the disc 27 rotates.

[0027] The reciprocating sliding of the drive rod 26 drives the horizontal frame 24 to move up and down. The rectangular positioning block 22 at the lower end of the horizontal frame 24 is inserted into the first slot 21 of the positioning seat 20. The positioning seat 20 is fixed to the upper end of the top plate 19 by screws. The top plate 19 is connected to the top end of the vertical rod 17. Therefore, the movement of the horizontal frame 24 is transmitted to the vertical rod 17 through the positioning seat 20 and the top plate 19. The vertical rod 17 passes through the top cover 5 and the sealing seat 18 (the sealing seat 18 is fixed to the upper end of the top cover 5 and fits tightly with the vertical rod 17). Under the guidance of the sealing seat 18, it moves vertically up and down. The bottom end of the vertical rod 17 is connected to the side block 15 of the positioning frame 13, thereby pulling the positioning frame 13 to move up and down synchronously. The inner ring of the sealing seat 18 has multiple sealing rings, which will not hinder the movement of the vertical rod 17, and at the same time ensure the sealing between the vertical rod 17 and the sealing seat 18.

[0028] When the positioning frame 13 is raised and lowered, the stirring rod 12 slides in the second slot of the rotating shaft 11 through the rectangular protrusion (while maintaining synchronous rotation, relative lifting and lowering is achieved), which ultimately drives the stirring impeller 16 to rotate and reciprocate in the tank 1, so as to carry out all-round stirring of materials at different levels. The cross-sectional shape of the second slot is the same as that of the stirring rod 12 and the rectangular protrusion.

[0029] Adjust the lifting range of the impeller 16 (operate as needed): To change the lifting range of the impeller 16, first disassemble the drive rod 26: loosen the locking bolt 30 and remove the drive rod 26 from the positioning hole 28 of the disc 27 and the guide groove 25 of the crossbeam 24; then loosen the locking rod 23 on the positioning seat 20 (the locking rod 23 is threaded to the positioning seat 20, and one end abuts against the rectangular positioning block 22), slide the rectangular positioning block 22 at the lower end of the crossbeam 24 along the first empty groove 21, adjust the relative height between the crossbeam 24 and the positioning seat 20, and thus change the lifting stroke of the vertical rod 17; after adjustment, tighten the locking rod 23 to fix the rectangular positioning block 22, reinsert the drive rod 26 into the guide groove 25, and fix it to the corresponding positioning hole 28 on the edge of the disc 27 with the locking bolt 30, so as to achieve the new lifting range.

[0030] After mixing is complete, material is discharged and gas is treated: After the mixing is completed, the first motor 6 and the second motor 29 are turned off, and the valve of the discharge pipe 3 is opened. The mixed material is discharged through the discharge pipe 3. During the mixing process, the valve on the exhaust pipe 4 is opened, and the corrosive gas generated in the tank 1 is discharged and treated through the exhaust pipe 4.

[0031] By adjusting the position of the rectangular positioning block 22 in the first empty slot 21 and selecting the positioning holes 28 at different positions of the disc 27 to fix the drive rod 26, the lifting amplitude of the stirring impeller 16 can be flexibly changed to meet the stirring needs of different tank heights and different material quantities. It can adapt to various working conditions without replacing the equipment, thus improving the equipment's versatility.

[0032] Each drive component (first motor 6, second motor 29) only needs to provide power to drive stirring and lifting. The composite motion is achieved through the linkage of the mechanical structure, without the need for additional energy consumption. The feeding, stirring, adjustment and discharge of the equipment are all achieved through valve control and motor start and stop, which is simple to operate, reduces labor costs and meets the design goal of "high efficiency and energy saving".

[0033] Model 6 of the first motor: Permanent magnet motor.

[0034] Second motor model 29: Consider using a BLDC brushless DC motor, taking the BLDC201 model from Damai Instruments (Shanghai) Co., Ltd. as an example.

[0035] Electrical control system: Controller: The core controller is a Siemens S7-200SMART series PLC. This controller boasts powerful logic processing capabilities and abundant interface resources, easily enabling precise control of the first motor 6 and the second motor 29, as well as automated operation of the valves on the feed pipe 2, discharge pipe 3, and exhaust pipe 4. Its input / output points can be flexibly expanded according to actual needs, meeting the complex control logic requirements of the mixer.

[0036] Sensors: A level sensor (such as an E+H hydrostatic level gauge FMP40) is installed inside tank 1 to monitor the material level in real time, providing data support for controlling the feed rate and preventing material overflow. A speed sensor (such as an OMRONE6B2-CWZ6C rotary encoder) is installed on the motor shaft 11 to accurately measure the rotational speed of shaft 11 and feed it back to the controller, achieving closed-loop control of the stirring speed and ensuring stable stirring effect. In addition, temperature sensors (such as PT100 RTDs) and pressure sensors (such as MBS3000 pressure transmitters) are installed at key locations in tank 1 to monitor temperature and pressure changes inside tank 1. In case of abnormalities, the controller can promptly issue an alarm and take corresponding protective measures.

[0037] User Interface: The Kunlun Tongtai TPC7062KX touchscreen serves as the human-machine interface, allowing operators to intuitively start, stop, set parameters, and monitor the mixer's operating status. The interface is simple and clear, offering convenient and quick operation, significantly improving ease of use and work efficiency. Furthermore, the interface includes historical data recording and query functions, facilitating the tracking and analysis of equipment operation.

[0038] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A high-efficiency, energy-saving, corrosion-resistant, desulfurization mixer, comprising a tank (1), a feed pipe (2) on one side of the tank (1), a discharge pipe (3) at the lower end of the tank (1), a top cover (5) on the top of the tank (1), an exhaust pipe (4) on the top cover (5), and valves on the feed pipe (2), the discharge pipe (3), and the exhaust pipe (4), characterized in that: The tank (1) is equipped with a stirring assembly inside, and the top cover (5) is equipped with a driving assembly for driving the stirring assembly to rotate and a lifting assembly for driving the stirring assembly to rise and fall. The drive assembly includes a first motor (6), a rotating shaft (11), a frame (31), and a mechanical seal (9). The mechanical seal (9) is fixed to the upper end of the top cover (5). The first motor (6) is installed on the upper end of the frame (31). The lower end of the frame (31) is provided with a positioning flange (8). The positioning flange (8) is installed on the upper end of the top cover (5). The output end of the first motor (6) is connected to the rotating shaft (11) through a coupling (32). The rotating shaft (11) passes through the mechanical seal (9) and is inserted into the tank body (1). The stirring assembly includes a stirring rod (12), a positioning frame (13), and a stirring impeller (16). The stirring rod (12) is inserted into the rotating shaft (11) and rotates synchronously with the rotating shaft (11). The stirring rod (12) is slidably connected to the rotating shaft (11). The stirring impeller (16) is fixed at the lower end of the stirring rod (12). A cylindrical positioning block (14) is rotatably set inside the positioning frame (13) through a sealed bearing. The stirring rod (12) passes through the cylindrical positioning block (14) and is fixedly connected to the cylindrical positioning block (14). A side block (15) is provided on one side of the positioning frame (13).

2. The high-efficiency, energy-saving, corrosion-resistant, and desulfurization mixer according to claim 1, characterized in that: The outer wall of the stirring rod (12) is provided with a rectangular protrusion. The rectangular protrusion and the stirring rod (12) are an integral structure and are slidably connected to the rotating shaft (11). The side block (15) and the positioning frame (13) are an integral structure.

3. The high-efficiency, energy-saving, corrosion-resistant, and desulfurization mixer according to claim 2, characterized in that: The rotating shaft (11) is provided with a second cavity, and the stirring rod (12) and the rectangular protrusion are inserted into the second cavity and fit tightly with the rotating shaft (11).

4. The high-efficiency, energy-saving, corrosion-resistant, and desulfurization mixer according to claim 3, characterized in that: The drive assembly also includes a sealing cup (10), a motor mounting flange (7), and a positioning bearing (33). The positioning bearing (33) is mounted on the upper end of the mechanical seal (9), and the sealing cup (10) is mounted on the lower end of the positioning flange (8) and passes through the top cover (5). The positioning bearing (33) and the sealing cup (10) are both penetrated by the rotating shaft (11). The lower end of the first motor (6) is provided with a motor mounting flange (7), and the motor mounting flange (7) is fixedly mounted on the upper end of the frame (31).

5. The high-efficiency, energy-saving, corrosion-resistant, and desulfurization mixer according to claim 4, characterized in that: The lifting assembly includes a second motor (29), a drive rod (26), a crossbar (24), a sealing seat (18), and a vertical rod (17). The sealing seat (18) is fixed to the upper end of the top cover (5). The vertical rod (17) vertically penetrates the top cover (5) and the sealing seat (18) and is inserted into the tank body (1). The vertical rod (17) is slidably connected to the sealing seat (18). The bottom end of the vertical rod (17) is connected to a side block (15). The top end of the vertical rod (17) is fixedly fitted with a top plate. 19) The lower end of the cross frame (24) is provided with a positioning seat (20), which is fixed to the upper end of the top plate (19) by screws. The cross frame (24) is provided with a guide groove (25), and the drive rod (26) passes through the guide groove (25) and is slidably connected to the cross frame (24). The second motor (29) is fixed above the top cover (5). The output end of the second motor (29) is provided with a disc (27), and the rear end of the drive rod (26) is fixed at the edge of the disc (27).

6. The high-efficiency, energy-saving, corrosion-resistant, and desulfurization mixer according to claim 5, characterized in that: The vertical rod (17) is in close contact with the sealing seat (18). Both the vertical rod (17) and the drive rod (26) are cylindrical structures. The inner ring of the sealing seat (18) is provided with multiple sealing rings that are penetrated by the vertical rod (17).

7. The high-efficiency, energy-saving, corrosion-resistant, and desulfurization mixer according to claim 6, characterized in that: The middle part of the positioning seat (20) is provided with a first slot (21), and the lower end of the cross frame (24) is provided with a rectangular positioning block (22) that is inserted into the first slot (21) and slidably connected with the positioning seat (20). The middle part of the positioning seat (20) is also provided with a locking rod (23), which passes through the positioning seat (20) and abuts against the rectangular positioning block (22) at one end. The locking rod (23) is threadedly connected to the positioning seat (20). Multiple positioning holes (28) are arranged in an array from the edge of the disk (27) toward the axis of the disk (27). The rear end of the drive rod (26) is fixed to the front end of the disk (27) by a locking bolt (30). The locking bolt (30) passes through the positioning hole (28) and is inserted into the drive rod (26).

8. The high-efficiency, energy-saving, corrosion-resistant, and desulfurization mixer according to claim 7, characterized in that: The positioning frame (13) has a cavity, the cylindrical positioning block (14) is inserted into the cavity, the outer ring of the sealed bearing is interference-fitted with the inner wall of the cavity, and the inner ring of the sealed bearing is interference-fitted with the outer wall of the cylindrical positioning block (14).

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