A slurry mixing and stirring device for production of superphosphoric acid

Abstract

The present application relates to the technical field of stirring device, and proposes a slurry mixing and stirring device for production of calcium superphosphate, which realizes auxiliary slurry mixing and stirring of slurry for production of calcium superphosphate by means of extrusion stirring, has less dead angle during stirring, is more practical, can separate slurry from solid impurities during stirring, realizes filtration for production of calcium superphosphate, has less residual calcium superphosphate after use, more complete discharge, and more convenient cleaning operation, comprises a stirring device body, the stirring device body is provided with a discharging channel, the lower surface of the stirring device body is provided with a discharge channel, further comprises an extrusion stirring system and an auxiliary circulation system, the extrusion stirring system comprises a sliding sleeve and a sliding cylinder, the sliding sleeve is fixedly connected to the top end of the stirring device body, the sliding cylinder is fixedly connected to the bottom end of the stirring device body, and the sliding sleeve and the sliding cylinder are respectively slidably connected with a driving semicircular rod and a driven semicircular rod.

Description

Technical Field

[0001] The invention relates to the technical field of stirring devices, and in particular to a slurry mixing stirring device for superphosphate production. Background Art

[0002] As we all know, superphosphate has the effect of supplying elements such as phosphorus, calcium and sulfur to plants, and has the function of improving alkaline soil. It can be used as base fertilizer, foliar fertilizer or foliar spray fertilizer. Superphosphate is a physical mixture of multiple components. The slurry mixing device for superphosphate production is an auxiliary device for mixing multiple raw materials for superphosphate production.

[0003] After searching, the Chinese patent with publication number CN217568537U published on October 14, 2022 discloses a slurry mixing and stirring device for superphosphate production, which is roughly described as comprising a stirring device body, a discharge channel is installed on the upper surface of the stirring device body, a first motor is installed on the back of the discharge channel, the rotor of the first motor coaxially passes through the discharge channel and is fixed with a rotating rod, a moving block is installed on the surface of the rotating rod through a bearing, the inner cavity of the discharge channel is provided with a crushing head, a moving groove is provided on the surface of the crushing head, and the moving block is embedded in the inner cavity of the moving groove, a carrying chamber is provided on the upper surface of the stirring device body, the carrying chamber is located in the lower part of the inner cavity of the discharge channel, the carrying chamber and the crushing head are both arc-shaped, the position and size of the carrying chamber are adapted to the crushing head, and a filter hole is provided on the lower surface of the carrying chamber. When in use, first put the superphosphate into the carrying chamber through the discharge channel, and then start the first motor to drive the rotating rod to rotate, the rotation of the rotating rod can drive the moving block to rotate, and the moving block can drive the crushing head to move up and down when rotating. The crushing head can crush the superphosphate in the carrying chamber when moving downward, so that the superphosphate is crushed into powder and enters the stirring device body through the filter hole. The superphosphate crushed into powder can fully contact with water, thereby improving the mixing efficiency of the superphosphate. Finally, start the second motor to drive the rotating rod to rotate, and the rotation of the rotating rod can drive the auger to rotate. When the auger rotates, it can move the superphosphate located below to the top, and the superphosphate can be stirred by the stirring blades when moving, so that the device can evenly stir the superphosphate and the superphosphate can be evenly mixed.

[0004] Although the above-mentioned prior art solution can be used for auxiliary mixing of multiple raw materials in the superphosphate production process, since the mixture after mixing the multiple raw materials in the superphosphate production process is mostly in a slurry, if the slurry is relatively thick, simply relying on the form of an auger and stirring blades will result in a small effective stirring area for the slurry, and it is easy for the slurry to stick to the stirring device body, making it difficult to stir, resulting in poor practicality. At the same time, after the stirring is completed, it is difficult to clean the interior of the stirring device body, and the cleanability is poor. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the present invention provides a slurry mixing and stirring device for superphosphate production, which adopts an extrusion-type stirring method to achieve auxiliary slurry mixing and stirring of the slurry used in superphosphate production. There are fewer dead angles in the stirring process, which is more practical. At the same time, the slurry can be separated from solid impurities during the stirring operation, thereby realizing production filtration of superphosphate. After use, there is less superphosphate residue, the discharge is more thorough, the cleaning operation is more convenient, and the cleanliness is better.

[0007] (2) Technical solution

[0008] The top end of the sliding cylinder is fixedly connected to the top of the stirring device body, and the sliding cylinder is fixedly connected to the bottom end of the stirring device body, and a driving semicircular rod and a driven semicircular rod are slidably connected in the sliding sleeve and the sliding cylinder, respectively, and an active stirring plate and a driven stirring plate are fixedly connected to the driving semicircular rod and the driven semicircular rod, respectively, and the active stirring plate and the driven stirring plate are both slidably fitted in the stirring device body, and a plurality of slurry penetration holes are opened on the active stirring plate and the driven stirring plate, a transmission support assembly is installed in the stirring device body, and the transmission support assembly is used for driving the transmission and limit support between the semicircular rod and the driven semicircular rod, and the top end of the sliding cylinder is fixedly connected to the bottom end of the stirring device body. An electric telescopic rod is provided, and the telescopic rod of the electric telescopic rod is connected to the driving semicircular rod, wherein the auxiliary circulation system includes a circulation pump and a plurality of external brackets, the circulation pump is installed at the bottom end of the stirring device body, and the water inlet pipe of the circulation pump is connected to the interior of the stirring device body, and the plurality of external brackets are fixedly connected to the stirring device body, a multi-ribbed groove is provided in the stirring device body, the number of planes in the multi-ribbed groove is the same as the number of external brackets, and the plurality of external brackets are connected to a return liquid nozzle through a connecting ball, and the plurality of return liquid nozzles are connected to the water outlet pipe of the circulation pump, and a plurality of planes in the multi-ribbed groove are provided with through-ports, and the plurality of through-ports are respectively used for the plurality of return liquid nozzles to extend into the stirring device body, and a first transition plane, a second transition plane, a third transition plane and a fourth transition plane are provided in the plurality of through-ports, and a magnetic attraction component acting on the return liquid nozzle is installed on the plurality of first transition planes, the plurality of second transition planes, the plurality of third transition planes and the plurality of fourth transition planes.

[0009] On the basis of the above-mentioned scheme, the transmission support assembly includes a bridge rod, which is fixedly connected to the stirring device body and is rotatably connected to a transmission gear. The driving semicircular rod and the driven semicircular rod are each provided with a toothed belt at one end close to each other, and both of the toothed belts are engaged with the transmission gear. A ring is fixedly connected to the bridge rod, and the driving semicircular rod and the driven semicircular rod are both slidably fitted in the ring.

[0010] Preferably, based on the above scheme, the active stirring plate and the driven stirring plate are respectively provided with a main semicircular opening and a slave semicircular opening, and the main semicircular opening and the slave semicircular opening are matched with the driven semicircular rod and the driving semicircular rod respectively.

[0011] Further on the basis of the above-mentioned scheme, the multiple magnetic suction components all include conductors and coils that cooperate with each other, and embedding grooves are opened on the multiple first transition planes, the multiple second transition planes, the multiple third transition planes and the multiple fourth transition planes. The multiple conductors are respectively arranged in the multiple embedding grooves, and the multiple coils are also respectively arranged in the multiple embedding grooves, and sealing plates are provided at the notches of the multiple embedding grooves, and the multiple liquid return nozzles are provided with traction rings that can be magnetically attracted.

[0012] Further to the above scheme, multiple connecting balls are provided with bell mouths, and multiple bell mouths are respectively connected to multiple liquid return nozzles; multiple external brackets are provided with connecting cavities, and multiple connecting cavities are respectively connected to multiple bell mouths; and multiple connecting cavities are connected with synchronization rings, and the synchronization rings are connected to the water outlet pipe of the circulation pump through a guide pipe.

[0013] Furthermore, based on the above solution, the diameter of the inscribed circle of the polygonal groove is larger than the diameter of the inner cavity of the stirring device body.

[0014] As a further improvement of the above solution, an on-off valve is installed on the discharge channel.

[0015] As a further improvement of the above solution, a debris discharge port is provided on the side wall of the stirring device body, and a sealed arc door is installed in the debris discharge port.

[0016] As a further improvement of the above solution, after the sealed arc door is closed relative to the stirring device body, the inner side wall of the sealed arc door is flush with the inner side wall of the stirring device body.

[0017] As a further solution of the above solution, a plurality of supporting legs are fixedly connected to the bottom end of the stirring device body, and the supporting height of the stirring device body by the plurality of supporting legs is greater than the height of the sliding cylinder.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the present invention provides a slurry mixing and stirring device for superphosphate production, which has the following beneficial effects:

[0020] 1. In the present invention, an extrusion stirring method is formed through the design of an extrusion stirring system, and the extrusion stirring method is adopted to realize auxiliary slurry mixing and stirring of the slurry used in superphosphate production. There are fewer operating dead angles during the stirring process, and the stirred material can be crushed and extruded, which is more practical. Moreover, after use, there is less superphosphate residue and the discharge is more thorough. Through the design of the transmission support component, the relative motion transmission of the active stirring plate and the driven stirring plate is formed, thereby promoting the formation of the extrusion motion.

[0021] 2. In the present invention, the slurry holes opened on both the active stirring plate and the driven stirring plate can allow the slurry to pass through during the extrusion stirring process, thereby achieving stirring. At the same time, the slurry can be separated from solid impurities during the stirring operation, thereby achieving production filtration for superphosphate.

[0022] 3. In the present invention, through the design of the auxiliary circulation system, the slurry in the stirring device body is first extracted and then discharged into the stirring device body, thereby realizing the circulation stirring of the slurry. At the same time, when the stirring device body needs to be cleaned after use, it can also be done through the auxiliary circulation system. The cleaning operation is more convenient and the cleaning performance is better. Through the design of the magnetic suction component, the spraying direction of the return liquid nozzle can be controlled, and the use is more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0025] Figure 3 For the present invention Figure 1 Schematic diagram of the local enlarged structure at B in the middle;

[0026] Figure 4 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the driven semicircular rod and the driven stirring plate in the present invention;

[0028] Figure 6 This is a schematic diagram of the three-dimensional structure of the stirring device body of the present invention;

[0029] Figure 7 This is a schematic diagram of the three-dimensional structure of the driving semicircular rod, bridge rod and transmission gear of the present invention;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the present invention as a whole from the rear side.

[0031] In the figure: 1. stirring device body; 2. discharge channel; 3. discharge channel; 4. sliding sleeve; 5. sliding cylinder; 6. driving semicircular rod; 7. driven semicircular rod; 8. active stirring plate; 9. driven stirring plate; 10. slurry hole; 11. circulation pump; 12. external bracket; 13. polygonal groove; 14. connecting ball; 15. liquid return nozzle; 16. first transition plane; 17. second transition plane; 18. third transition plane; 19. fourth transition plane; 20. bridge rod; 21. transmission gear; 22. toothed belt; 23. collar; 24. main semicircular opening; 25. slave semicircular opening; 26. conductor; 27. coil; 28. embedded groove; 29. ​​sealing plate; 30. traction ring; 31. bell mouth; 32. connecting cavity; 33. synchronization ring; 34. guide pipe; 35. on-off valve; 36. sealed arc door; 37. support leg DETAILED DESCRIPTION

[0032] Example

[0033] See also Figures 1-8A slurry mixing and stirring device for superphosphate production includes a stirring device body 1, a discharge channel 2 is installed on the stirring device body 1, an on-off valve 35 is installed on the discharge channel 2 to control the on-off of the discharge channel 2, a discharge channel 3 is installed on the lower surface of the stirring device body 1, and also includes an extrusion stirring system and an auxiliary circulation system. The extrusion stirring system includes a sliding sleeve 4 and a sliding cylinder 5. The sliding sleeve 4 is fixedly connected to the top of the stirring device body 1, and the sliding cylinder 5 is fixedly connected to the bottom of the stirring device body 1, and the sliding sleeve 4 and the sliding cylinder 5 are respectively slidably connected to the driving The semicircular rod 6 and the driven semicircular rod 7 are respectively fixedly connected with an active stirring plate 8 and a driven stirring plate 9. The active stirring plate 8 and the driven stirring plate 9 are both slidably fitted in the stirring device body 1, and a plurality of slurry holes 10 are provided on the active stirring plate 8 and the driven stirring plate 9. The slurry holes 10 provided on the active stirring plate 8 and the driven stirring plate 9 can realize the passage of the slurry during the extrusion stirring process, realize the stirring, and at the same time, the slurry can be separated from the solid impurities during the stirring operation. To achieve the production filtration of superphosphate, a transmission support assembly is installed in the stirring device body 1, and the transmission support assembly is used to drive the transmission and limit support between the semicircular rod 6 and the driven semicircular rod 7. The transmission support assembly includes a bridge rod 20, which is fixedly connected to the stirring device body 1, and a transmission gear 21 is rotatably connected to the bridge rod 20. The driving semicircular rod 6 and the driven semicircular rod 7 are both provided with toothed belts 22 at one end close to each other. The two toothed belts 22 are both meshed with the transmission gear 21. A collar 23 is fixedly connected to the bridge rod 20. The bar 6 and the driven semicircular rod 7 are both slidably fitted in the ring 23. Through the design of the transmission support assembly, the relative movement of the active stirring plate 8 and the driven stirring plate 9 is transmitted, thereby promoting the formation of extrusion movement. The active stirring plate 8 and the driven stirring plate 9 are respectively provided with a main semicircular opening 24 and a slave semicircular opening 25. The main semicircular opening 24 and the slave semicircular opening 25 are matched with the driven semicircular rod 7 and the driving semicircular rod 6 respectively, providing sufficient space for the mutual adjustment of the active stirring plate 8 and the driven stirring plate 9, so that the adjustment range is wider.

[0034] It also needs to be further explained that the top end of the sliding cylinder 5 is provided with an electric telescopic rod, the telescopic rod of which is connected with the driving semicircular rod strip 6. Through the design of the extrusion stirring system, an extrusion stirring mode is formed. The extrusion stirring mode is used to realize the auxiliary mixing and stirring of the slurry for the production of calcium superphosphate. The operation dead angle in the stirring process is small. At the same time, the material being stirred can be crushed and extruded. It is more practical. After use, the residual calcium superphosphate is less, and the discharge is more thorough. The auxiliary circulating system includes a circulating pump 11 and a plurality of external hanging racks 12. The circulating pump 11 is installed at the bottom end of the stirring device body 1, and the water inlet pipe of the circulating pump 11 is in communication with the inside of the stirring device body 1. The plurality of external hanging racks 12 are fixedly connected with the stirring device body 1. The stirring device body 1 is provided with a plurality of polygonal grooves 13. The diameter of the circle inscribed in the plurality of polygonal grooves 13 is greater than the diameter of the inner cavity of the stirring device body 1. It provides sufficient space for the driving stirring plate 8 and the driven stirring plate 9. At the same time, it provides sufficient space for the installation and movement of the subsequent liquid return jet pipe 15. The number of planes in the plurality of polygonal grooves 13 is the same as the number of external hanging racks 12. The plurality of external hanging racks 12 are each connected with the liquid return jet pipe 15 through a connecting ball 14. The plurality of liquid return jet pipes 15 are in communication with the water outlet pipe of the circulating pump 11. The plurality of connecting balls 14 are each provided with a horn mouth 31. The plurality of horn mouths 31 are respectively in communication with the plurality of liquid return jet pipes 15. The plurality of external hanging racks 12 are each provided with a communication cavity 32. The plurality of communication cavities 32 are respectively in communication with the plurality of horn mouths 31. The plurality of communication cavities 32 are in communication with a synchronous ring 33. The synchronous ring 33 is in communication with the water outlet pipe of the circulating pump 11 through a guide pipe 34. The plurality of planes in the plurality of polygonal grooves 13 are each provided with a passing port. The plurality of passing ports are respectively used for the plurality of liquid return jet pipes 15 to extend into the stirring device body 1. Through the design of the auxiliary circulating system, the slurry in the stirring device body 1 is first extracted and then discharged into the stirring device body 1, thereby realizing the circulating stirring of the slurry. At the same time, when the used stirring device body 1 needs to be cleaned, it can also be cleaned through the auxiliary circulating system. The cleaning operation is more convenient, and the cleaning performance is better. The plurality of passing ports are each provided with a first transition plane 16, a second transition plane 17, a third transition plane 18 and a fourth transition plane 19. The plurality of first transition planes 16, the plurality of second transition planes 17, the plurality of third transition planes 18 and the plurality of fourth transition planes 19 are each provided with a magnetic attraction assembly acting on the liquid return jet pipe 15. The plurality of magnetic attraction assemblies each include a conductor 26 and a coil 27 matched with each other. The plurality of first transition planes 16, the plurality of second transition planes 17, the plurality of third transition planes 18 and the plurality of fourth transition planes 19 are each provided with an embedding groove 28. The plurality of conductors 26 are respectively arranged in the plurality of embedding grooves 28. The plurality of coils 27 are also respectively arranged in the plurality of embedding grooves 28. The plurality of embedding grooves 28 are each provided with a sealing plate 29. The plurality of liquid return jet pipes 15 are each provided with a traction ring 30 that can be magnetically attracted. Through the design of the magnetic attraction assembly, the spraying direction of the liquid return jet pipe 15 can be controlled.It is more flexible to use. A debris discharge port is opened on the side wall of the stirring device body 1. A sealed arc door 36 is installed in the debris discharge port to clean impurities between the active stirring plate 8 and the driven stirring plate 9. After the sealed arc door 36 is closed relative to the stirring device body 1, the inner side wall of the sealed arc door 36 is flush with the inner side wall of the stirring device body 1, ensuring the smooth passage of the driven stirring plate 9. The bottom end of the stirring device body 1 is fixedly connected to multiple support legs 37. The support height of the multiple support legs 37 for the stirring device body 1 is greater than the height of the sliding cylinder 5, achieving stable support for the stirring device body 1 and providing sufficient space for the installation of the sliding cylinder 5.

[0035] The electric telescopic rod and the circulating pump 11 in this embodiment are conventional equipment purchased on the market and known to those skilled in the art. They can also be customized according to actual needs. In this patent, we only use them and do not improve their structure and function. For those skilled in the art, their setting method, installation method and electrical connection method can be debugged and operated according to the requirements of their instruction manual, and will not be described in detail here.

[0036] In summary, the working process of the slurry mixing and stirring device for superphosphate production is as follows: when in use, the slurry mixing and stirring device for superphosphate production is first placed at the desired location, and the electric telescopic rod and the circulation pump 11 are connected to the corresponding control circuit according to various installation instructions. During operation, when slurry mixing and stirring for superphosphate production is required, the electric telescopic rod is first started, and the electric telescopic rod drives the semicircular rod 6 to move up and down repeatedly, and the driving semicircular rod 6 to move up and down repeatedly drives the active stirring plate 8 to move up and down. Through the action of the transmission gear 21, the driving semicircular rod 6 that moves up and down repeatedly drives the driven semicircular rod 7 to move up and down repeatedly, thereby realizing the repeated movement of the driven stirring plate 9. The active stirring plate 8 and the driven stirring plate 9 move up and down, so that even if the active stirring plate 8 and the driven stirring plate 9 repeatedly move closer and farther away from each other synchronously, when the active stirring plate 8 and the driven stirring plate 9 move smoothly, the superphosphate is fed into the stirring device body 1 through the discharge channel 2. At the same time, the discharge channel 2 can also be equipped with a matching crushing device, just like the crushing device built into the discharge channel 2 in the comparative patent with publication number CN217568537U in the background technology, so as to realize the pre-crushing of the calcium phosphate before it is fed into the stirring device body 1 through the discharge channel 2, and the calcium phosphate entering the stirring device body 1 is dissolved with water, and the stirring between the calcium phosphate and the water is realized with the relative approach and relative distance movement of the active stirring plate 8 and the driven stirring plate 9. And accelerate the formation of slurry, and in this process, the circulation pump 11 can be started to suck out the slurry in the stirring device body 1 first, and then pressurized through the return liquid nozzle 15 to inject it back into the stirring device body 1 at high pressure, so as to assist in accelerating the stirring formation of the slurry in the stirring device body 1, and when the slurry is discharged through the discharge channel 3 after the stirring is completed, the active stirring plate 8 and the driven stirring plate 9 can also be used to achieve the scraping and discharge of the residual slurry on the inner wall of the stirring device body 1, thereby improving the thoroughness of the discharge of the slurry and providing certain convenience for the subsequent cleaning of the stirring device body 1. When the stirring device body 1 needs to be cleaned, appropriate The cleaning liquid is then started by starting the circulation pump 11 so that the return liquid nozzle 15 can realize the cleaning of the interior of the stirring device body 1. At the same time, during the cleaning process, the current of the coils 27 at different positions can be controlled to be on and off, so that the corresponding mutually matching coils 27 and conductors 26 generate corresponding magnetic fields. The magnetic field attracts the traction ring 30 to change the spray direction of the return liquid nozzle 15, so as to achieve the purpose of targeted cleaning of different parts of the interior of the stirring device body 1. In order to ensure that the impurities are always above the driven stirring plate 9 and the slurry is filtered, the position of the bridge rod 20 and the polygonal groove 13 is adjusted so that the extreme movement height of the driven stirring plate 9 is located below the polygonal groove 13.

Claims

1. A slurry mixing and stirring device for superphosphate production, comprising a stirring device body (1), wherein the stirring device body (1) is provided with a discharge channel (2), and a discharge channel (3) is provided on the lower surface of the stirring device body (1), characterized in that: It also includes an extrusion stirring system and an auxiliary circulation system, The extrusion stirring system comprises a sliding sleeve (4) and a sliding cylinder (5), wherein the sliding sleeve (4) is fixedly connected to the top end of the stirring device body (1), and the sliding cylinder (5) is fixedly connected to the bottom end of the stirring device body (1), and a driving semicircular rod (6) and a driven semicircular rod (7) are respectively slidably connected in the sliding sleeve (4) and the sliding cylinder (5), and an active stirring plate (8) and a driven stirring plate (9) are respectively fixedly connected to the driving semicircular rod (6) and the driven semicircular rod (7). The stirring plate (8) and the driven stirring plate (9) are both slidably fitted in the stirring device body (1), and a plurality of pulp penetration holes (10) are provided on the active stirring plate (8) and the driven stirring plate (9). A transmission support assembly is installed in the stirring device body (1), and the transmission support assembly is used for transmission and position limiting support between the driving semicircular rod (6) and the driven semicircular rod (7). An electric telescopic rod is installed at the top end of the sliding cylinder (5), and the telescopic rod of the electric telescopic rod is connected to the driving semicircular rod (6), wherein The auxiliary circulation system includes a circulation pump (11) and a plurality of external hangers (12), wherein the circulation pump (11) is installed at the bottom end of the stirring device body (1), and the water inlet pipe of the circulation pump (11) is communicated with the interior of the stirring device body (1), and the plurality of external hangers (12) are fixedly connected to the stirring device body (1), and a multi-ribbed groove (13) is provided in the stirring device body (1), and the number of planes in the multi-ribbed groove (13) is the same as the number of the external hangers (12), and the plurality of external hangers (12) are connected to a liquid return nozzle (15) through a connecting ball (14), and the plurality of liquid return nozzles (15) are connected to the stirring device body (11). The plurality of planes in the multi-faceted groove (13) are connected to the outlet pipe of the circulation pump (11), and the plurality of planes in the multi-faceted groove (13) are provided with through openings, and the plurality of through openings are respectively used for the plurality of liquid return nozzles (15) to extend into the stirring device body (1), and the plurality of through openings are provided with a first transition plane (16), a second transition plane (17), a third transition plane (18) and a fourth transition plane (19), and the plurality of first transition planes (16), the plurality of second transition planes (17), the plurality of third transition planes (18) and the plurality of fourth transition planes (19) are all provided with magnetic suction components acting on the liquid return nozzles (15), wherein The transmission support assembly includes a bridge rod (20), the bridge rod (20) is fixedly connected to the stirring device body (1), and a transmission gear (21) is rotatably connected to the bridge rod (20), and the driving semicircular rod (6) and the driven semicircular rod (7) are both provided with toothed belts (22) at their ends close to each other, and the two toothed belts (22) are both engaged with the transmission gear (21), and a collar (23) is fixedly connected to the bridge rod (20), and the driving semicircular rod (6) and the driven semicircular rod (7) are both slidably fitted in the collar (23), and a main through semicircular opening (24) and a slave through semicircular opening (25) are respectively opened on the active stirring plate (8) and the driven stirring plate (9), and the main through semicircular opening (24) and The plurality of magnetic components are matched with the driven semicircular rod (7) and the driving semicircular rod (6) through the semicircular opening (25), and each of the plurality of magnetic components includes a conductor (26) and a coil (27) that cooperate with each other. Embedding grooves (28) are provided on the plurality of first transition planes (16), the plurality of second transition planes (17), the plurality of third transition planes (18) and the plurality of fourth transition planes (19). The plurality of conductors (26) are respectively arranged in the plurality of embedding grooves (28), and the plurality of coils (27) are also respectively arranged in the plurality of embedding grooves (28). The notches of the plurality of embedding grooves (28) are respectively provided with sealing plates (29), and the plurality of return liquid nozzles (15) are respectively provided with traction rings (30) that can be attracted by magnetism.

2. A slurry mixing and stirring device for superphosphate production according to claim 1, characterized in that: A plurality of the connecting balls (14) are provided with bell mouths (31), and the bell mouths (31) are respectively connected to the plurality of liquid return nozzles (15). A plurality of the external brackets (12) are provided with connecting cavities (32), and the connecting cavities (32) are respectively connected to the plurality of bell mouths (31). The plurality of connecting cavities (32) are connected to synchronizer rings (33), and the synchronizer rings (33) are connected to the water outlet pipe of the circulation pump (11) through a guide pipe (34).

3. A slurry mixing and stirring device for superphosphate production according to claim 2, characterized in that: The diameter of the inscribed circle of the polygonal groove (13) is greater than the diameter of the inner cavity of the stirring device body (1).

4. A slurry mixing and stirring device for superphosphate production according to claim 3, characterized in that: An on-off valve (35) is installed on the discharge channel (2).

5. A slurry mixing and stirring device for superphosphate production according to claim 4, characterized in that: A debris discharge port is provided on the side wall of the stirring device body (1), and a sealed arc-shaped door (36) is installed in the debris discharge port.

6. A slurry mixing and stirring device for superphosphate production according to claim 5, characterized in that: After the sealed arc door (36) is closed relative to the stirring device body (1), the inner side wall of the sealed arc door (36) is flush with the inner side wall of the stirring device body (1).

7. A slurry mixing and stirring device for superphosphate production according to claim 6, characterized in that: The bottom end of the stirring device body (1) is fixedly connected to a plurality of support legs (37), and the support height of the stirring device body (1) by the plurality of support legs (37) is greater than the height of the sliding cylinder (5).

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