A mixing device for a high-efficiency extraction tank

Abstract

This utility model discloses a mixing device for a high-efficiency extraction tank, relating to the field of extraction mixing technology. It includes: a cylindrical tank with a circular mixing chamber inside; a tank cover, with a drive column rotatably nested in the upper center of the cover, a rotating disk connected to the bottom of the drive column, an internal gear ring fixed to the inner wall of the cover, a first stirring assembly detachably connected to the bottom of the rotating disk, and drive shafts rotatably nested in both the left and right sides of the rotating disk. A drive gear is fixed to the upper end of the drive shaft, meshing with the internal gear ring, and a second stirring assembly detachably connected to the lower end of the drive shaft. This utility model employs a circular mixing chamber, with the first and second stirring assemblies working in conjunction. The second stirring assembly rotates on its own axis and around the first stirring assembly, creating three-dimensional turbulence within the circular mixing chamber, significantly improving the two-phase mixing effect and effectively solving the problem of weak mixing at the edges of the mixing chamber.

Description

Technical Field

[0001] This utility model relates to the field of extraction and mixing technology, specifically to a mixing device for a high-efficiency extraction tank. Background Technology

[0002] Rare earth solvent extraction is the mainstream process for separating key elements such as lanthanum, cerium, praseodymium, and neodymium. The mixing-clarification unit of the extraction tank is the core equipment, and its mixing efficiency directly determines the number of stages, yield, and product purity. The mixing chamber of the extraction tank is equipped with a stirring paddle, which mechanically stirs the organic phase and the aqueous phase to achieve full contact, thus realizing the mass transfer and distribution of rare earth ions.

[0003] Currently, the mixing chambers of traditional extraction tanks are mostly rectangular, and the internal stirring is mostly carried out by mechanical stirring with single or double-layer flat paddles. The stirring components are located in the center of the mixing chamber, the mixing effect at the edge of the mixing chamber is weak, and low-energy vortex zones are formed at the four corners of the rectangular mixing chamber, resulting in insufficient contact between the two phases. Utility Model Content

[0004] The purpose of this invention is to provide a mixing device for a high-efficiency extraction tank to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mixing device for a high-efficiency extraction tank, comprising: A cylindrical tank, wherein a circular mixing chamber is provided inside the cylindrical tank, and an aqueous phase inlet pipe and an organic phase inlet pipe are provided at the bottom of the circular mixing chamber; A trough cover is mounted on a cylindrical trough body. A transmission column is rotatably nested in the upper middle part of the trough cover. A rotating disk is connected to the bottom of the transmission column. An internal gear ring is fixed to the inner wall of the trough cover. A first stirring assembly is detachably connected to the bottom of the rotating disk. A transmission shaft is rotatably nested in both the left and right parts of the rotating disk. A transmission gear is fixed to the upper end of the transmission shaft. The transmission gear meshes with the internal gear ring. A second stirring assembly is detachably connected to the lower end of the transmission shaft. The upper side of the slot cover is provided with a frequency conversion drive assembly that drives the transmission column to rotate.

[0006] Furthermore, the first stirring component and the second stirring component are nested in a circular mixing chamber, and the first stirring component and the second stirring component have the same composition structure; Both the first stirring assembly and the second stirring assembly include a stirring shaft. The lower part of the stirring shaft is provided with an axial flow blade, and the bottom of the stirring shaft is connected to a radial flow blade. The axial flow blade and the radial flow blade cooperate with each other to allow the fluid to simultaneously obtain axial circulation and radial shear, thereby improving the mixing effect. The axial-flow blades on the second stirring assembly are positioned above the axial-flow blades on the first stirring assembly, and the radial-flow blades on the second stirring assembly are positioned below the axial-flow blades on the first stirring assembly. The radial-flow blades on the second stirring assembly are positioned above the radial-flow blades on the first stirring assembly, which can prevent the first stirring assembly and the second stirring assembly from colliding during movement.

[0007] Furthermore, a first connecting female column is fixed to the lower center of the rotating disk, and a second connecting female column is fixed to the bottom end of the transmission shaft. The first connecting female column and the second connecting female column have the same diameter. A rectangular limiting groove is opened at the bottom of both the first connecting female column and the second connecting female column, and multiple positioning holes are opened on the side walls of both the first connecting female column and the second connecting female column. A rectangular block is fixed to the upper middle part of the stirring shaft. The rectangular block matches the rectangular limiting groove. Multiple side plates are fixed to the upper edge of the stirring shaft. Locking knobs are threadedly nested on the side plates. The tail end of the locking knob is nested in the corresponding positioning hole. This makes the connection between the first stirring component and the first connecting column simple, and the connection between the second stirring component and the second connecting column simple, allowing for tool-free disassembly and assembly, and enabling quick replacement.

[0008] Furthermore, the variable frequency drive assembly includes a bracket, a variable frequency motor, a drive gear, and a driven gear. The driven gear is fixedly sleeved on the transmission column. The bracket is mounted on the slot cover. The variable frequency motor is mounted on the bracket. The output end of the variable frequency motor is connected to the drive gear. The drive gear and the driven gear are meshed together. The variable frequency motor drives the drive gear to rotate, and the drive gear meshes with the driven gear to drive the transmission column to rotate. The rotation of the transmission column drives the rotating disk to rotate, and the rotation of the rotating disk drives the first stirring component and the first connecting column to rotate.

[0009] Furthermore, the bottom of the groove cover is provided with an installation cavity, the outer wall of the inner toothed ring is fixedly connected to the inner wall of the installation cavity, the inner toothed ring is located above the rotating disk, the rotating disk is nested in the installation cavity, and multiple balls are movably embedded in the side wall of the rotating disk, the balls abutting against the inner wall of the installation cavity.

[0010] Furthermore, the drive shaft and the second connecting column are integrally machined.

[0011] Furthermore, the stirring shaft, axial flow impeller, and radial flow impeller are all made of 316L stainless steel, which has good corrosion resistance and a long service life.

[0012] Furthermore, an overflow pipe is provided on the upper part of the side wall of the cylindrical groove, the overflow pipe is located at a height higher than the axial flow blade, and a valve is installed on the overflow pipe.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. A circular mixing chamber is adopted to avoid the low-energy vortex zone at the four corners of the rectangular mixing chamber. At the same time, the first and second stirring components work together. The second stirring component can both rotate on its own axis and rotate around the first stirring component to form three-dimensional turbulence in the circular mixing chamber, which greatly improves the two-phase mixing effect and effectively solves the problem of weak mixing effect at the edge of the mixing chamber. 2. Both the first and second mixing components are equipped with axial flow blades and radial flow blades, which can greatly improve axial circulation and radial shear, and further improve the mixing effect. 3. The first mixing component and the first connecting column are quick and easy to assemble and disassemble, and the second mixing component and the second connecting column are quick and easy to assemble and disassemble, enabling tool-free assembly and disassembly and quick replacement. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a three-dimensional sectional view of the present invention; Figure 2 For the present utility model Figure 1 Schematic diagram after removing the cylindrical groove; Figure 3 This is a diagram showing the connection between the rotating disk and the transmission column of this utility model; Figure 4 This utility model Figure 3 Another perspective illustration; Figure 5 This is a schematic diagram showing the connection between the drive shaft and the second connecting column of this utility model; Figure 6 This is a schematic diagram of the first stirring component of this utility model; Figure 7 This utility model Figure 6 Enlarged schematic diagram of part A.

[0016] Explanation of reference numerals in the attached figures: 1. Cylindrical tank; 2. Circular mixing chamber; 3. Aqueous phase inlet pipe; 4. Organic phase inlet pipe; 5. Tank cover; 6. Transmission column; 7. Rotary disc; 8. Internal gear ring; 9. First stirring assembly; 10. Transmission shaft; 11. Transmission gear; 12. Second stirring assembly; 13. Stirring shaft; 14. Axial flow impeller; 15. Radial flow impeller; 16. First connecting column; 17. Second connecting column; 18. Rectangular limiting groove; 19. Positioning hole; 20. Rectangular block; 21. Side plate; 22. Locking knob; 23. Support base; 24. Variable frequency motor; 25. Drive gear; 26. Driven gear; 27. Mounting cavity; 28. Ball bearing; 29. ​​Overflow pipe. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] This utility model provides, for example Figures 1 to 7 The mixing device of the high-efficiency extraction tank shown includes: A cylindrical tank 1 is provided, and a circular mixing chamber 2 is provided inside the cylindrical tank 1. The bottom of the circular mixing chamber 2 is provided with an aqueous phase inlet pipe 3 and an organic phase inlet pipe 4. The tank cover 5 is mounted on the cylindrical tank body 1. A transmission column 6 is rotatably nested in the upper middle part of the tank cover 5. A rotating disk 7 is connected to the bottom of the transmission column 6. An internal gear ring 8 is fixed to the inner wall of the tank cover 5. A first stirring component 9 is detachably connected to the bottom of the rotating disk 7. A transmission shaft 10 is rotatably nested in both the left and right parts of the rotating disk 7. A transmission gear 11 is fixed to the upper end of the transmission shaft 10. The transmission gear 11 meshes with the internal gear ring 8. A second stirring component 12 is detachably connected to the lower end of the transmission shaft 10. The upper side of the slot cover 5 is equipped with a frequency conversion drive assembly that drives the transmission column 6 to rotate.

[0019] The first stirring component 9 and the second stirring component 12 are nested inside the circular mixing chamber 2, and the first stirring component 9 and the second stirring component 12 have the same composition and structure. Both the first stirring assembly 9 and the second stirring assembly 12 include a stirring shaft 13. The lower part of the stirring shaft 13 is provided with an axial flow blade 14, and the bottom of the stirring shaft 13 is connected to a radial flow blade 15. The axial flow blade 14 and the radial flow blade 15 cooperate with each other to enable the fluid to simultaneously obtain axial circulation and radial shear, thereby improving the mixing effect. The axial flow blade 14 on the second stirring assembly 12 is located above the axial flow blade 14 on the first stirring assembly 9, and the radial flow blade 15 on the second stirring assembly 12 is located below the axial flow blade 14 on the first stirring assembly 9. The radial flow blade 15 on the second stirring assembly 12 is located above the radial flow blade 15 on the first stirring assembly 9, which can prevent the first stirring assembly 9 and the second stirring assembly 12 from colliding during the movement.

[0020] The bottom of the groove cover 5 has an installation cavity 27. The outer wall of the inner toothed ring 8 is fixedly connected to the inner wall of the installation cavity 27. The inner toothed ring 8 is located above the rotating disk 7. The rotating disk 7 is nested in the installation cavity 27. Multiple balls 28 are movably embedded in the side wall of the rotating disk 7. The balls 28 abut against the inner wall of the installation cavity 27.

[0021] The drive shaft 10 and the second connecting column 17 are integrally machined.

[0022] The stirring shaft 13, axial flow blade 14 and radial flow blade 15 are all made of 316L stainless steel, which has good corrosion resistance and long service life.

[0023] An overflow pipe 29 is provided on the upper part of the side wall of the cylindrical tank 1. The overflow pipe 29 is located at a height higher than the axial flow blade 14. A valve is installed on the overflow pipe 29.

[0024] In this invention, the variable frequency drive assembly rotates the transmission column 6, which in turn rotates the rotating disk 7. The rotating disk 7 then rotates the first stirring assembly 9 at its bottom. Simultaneously, the transmission gear 11 on the rotating disk 7 rotates as well. The rotating gear 11 meshes with the internal gear ring 8, causing the transmission gear 11 to rotate. The rotation of the transmission gear 11 drives the transmission shaft 10 to rotate, which in turn drives the second stirring assembly 12 at its bottom to rotate. This allows the second stirring assembly 12 to both rotate on its own axis and around the first stirring assembly 9. Both the first stirring assembly 9 and the second stirring assembly 12 are equipped with axial flow blades 14 and radial flow blades 15. When the first stirring assembly 9 and the second stirring assembly 12 work together, they create a three-dimensional turbulent flow within the circular mixing chamber 2, greatly improving the two-phase mixing effect and effectively solving the problem of weak mixing at the edge of the mixing chamber.

[0025] like Figure 1 As shown, the variable frequency drive assembly includes a bracket 23, a variable frequency motor 24, a drive gear 25, and a driven gear 26. The driven gear 26 is fixedly sleeved on the transmission column 6. The bracket 23 is mounted on the slot cover 5. The variable frequency motor 24 is mounted on the bracket 23. The output end of the variable frequency motor 24 is connected to the drive gear 25. The drive gear 25 and the driven gear 26 are meshed together.

[0026] In this utility model, the operation of the variable frequency motor 24 drives the drive gear 25 to rotate. The rotation of the drive gear 25 meshes with the driven gear 26, which drives the transmission column 6 to rotate. The rotation of the transmission column 6 drives the rotating disk 7 to rotate. The rotation of the rotating disk 7 drives the first stirring assembly 9 and the first connecting column 16 to rotate.

[0027] like Figure 2 and Figures 4 to 7 As shown, a first connecting female post 16 is fixed to the lower center of the rotating disk 7, and a second connecting female post 17 is fixed to the bottom end of the drive shaft 10. The first connecting female post 16 and the second connecting female post 17 have the same diameter. A rectangular limiting groove 18 is opened at the bottom of both the first connecting female post 16 and the second connecting female post 17. Multiple positioning holes 19 are opened on the side walls of both the first connecting female post 16 and the second connecting female post 17. A rectangular block 20 is fixed to the upper middle part of the stirring shaft 13. The rectangular block 20 matches the rectangular limiting groove 18. Multiple side plates 21 are fixed to the upper edge of the stirring shaft 13. A locking knob 22 is threaded on the side plate 21. The tail end of the locking knob 22 is nested in the corresponding positioning hole 19. This makes the connection between the first stirring component 9 and the first connecting column 16 simple, and the connection between the second stirring component 12 and the second connecting column 17 simple, allowing for tool-free disassembly and assembly, and enabling quick replacement.

[0028] In this invention, when the first stirring assembly 9 is connected to the first connecting column 16, the rectangular block 20 at the top of the stirring shaft 13 is aligned with the rectangular limiting groove 18 at the bottom of the first connecting column 16, and then the rectangular block 20 is inserted into the rectangular limiting groove 18. At the same time, the inner walls of the multiple side plates 21 at the top of the stirring shaft 13 slide against the side wall of the first connecting column 16. Then, the locking knob 22 on the side plate 21 is rotated so that the tail end of the locking knob 22 is inserted into the positioning hole 19 on the first connecting column 16, thus realizing the installation of the first stirring assembly 9 and the first connecting column 16. When disassembling, hold the stirring shaft 13 with one hand and rotate each locking knob 22 with the other hand so that the tail end of the locking knob 22 is disengaged from the positioning hole 19 on the first connecting column 16. Then, pull the stirring shaft 13 down to separate the first stirring assembly 9 from the first connecting column 16. Similarly, the second stirring assembly 12 and the second connecting column 17 can be disassembled and assembled, realizing tool-free disassembly and assembly and quick replacement.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mixing device for a high-efficiency extraction tank, characterized in that, include: A cylindrical tank (1) is provided inside the cylindrical tank (1), and a circular mixing chamber (2) is provided at the bottom of the circular mixing chamber (2), which is provided with an aqueous phase inlet pipe (3) and an organic phase inlet pipe (4). The trough cover (5) is set on the cylindrical trough body (1). The upper middle part of the trough cover (5) is rotatably nested with a transmission column (6). The bottom of the transmission column (6) is connected to a rotating disk (7). The inner wall of the trough cover (5) is fixed with an internal gear ring (8). The bottom of the rotating disk (7) is detachably connected with a first stirring assembly (9). The left and right sides of the rotating disk (7) are rotatably nested with a transmission shaft (10). The upper end of the transmission shaft (10) is fixed with a transmission gear (11). The transmission gear (11) meshes with the internal gear ring (8). The lower end of the transmission shaft (10) is detachably connected with a second stirring assembly (12). The upper side of the slot cover (5) is provided with a frequency conversion drive assembly that drives the transmission column (6) to rotate.

2. The mixing device for a high-efficiency extraction tank according to claim 1, characterized in that: The first stirring component (9) and the second stirring component (12) are nested in the circular mixing chamber (2), and the first stirring component (9) and the second stirring component (12) have the same composition structure; The first stirring assembly (9) and the second stirring assembly (12) both include a stirring shaft (13), the lower part of the stirring shaft (13) is provided with an axial flow blade (14), and the bottom of the stirring shaft (13) is connected to a radial flow blade (15). The axial flow blade (14) on the second stirring assembly (12) is located above the axial flow blade (14) on the first stirring assembly (9), the radial flow blade (15) on the second stirring assembly (12) is located below the axial flow blade (14) on the first stirring assembly (9), and the radial flow blade (15) on the second stirring assembly (12) is located above the radial flow blade (15) on the first stirring assembly (9).

3. The mixing device for a high-efficiency extraction tank according to claim 2, characterized in that: A first connecting post (16) is fixed to the lower center of the rotating disk (7), and a second connecting post (17) is fixed to the bottom end of the transmission shaft (10). The first connecting post (16) and the second connecting post (17) have the same diameter. A rectangular limiting groove (18) is opened at the bottom of the first connecting post (16) and the second connecting post (17). Multiple positioning holes (19) are opened on the side walls of the first connecting post (16) and the second connecting post (17). A rectangular block (20) is fixed to the upper middle part of the stirring shaft (13). The rectangular block (20) matches the rectangular limiting groove (18). Multiple side plates (21) are fixed to the upper edge of the stirring shaft (13). A locking knob (22) is threaded on the side plate (21). The tail end of the locking knob (22) is nested in the corresponding positioning hole (19).

4. The mixing device for a high-efficiency extraction tank according to claim 1, characterized in that: The variable frequency drive assembly includes a bracket (23), a variable frequency motor (24), a drive gear (25), and a driven gear (26). The driven gear (26) is fixedly sleeved on the transmission column (6). The bracket (23) is mounted on the slot cover (5). The variable frequency motor (24) is mounted on the bracket (23). The output end of the variable frequency motor (24) is connected to the drive gear (25). The drive gear (25) and the driven gear (26) are meshed together.

5. The mixing device for a high-efficiency extraction tank according to claim 1, characterized in that: The bottom of the groove cover (5) is provided with an installation cavity (27). The outer wall of the internal toothed ring (8) is fixedly connected to the inner wall of the installation cavity (27). The internal toothed ring (8) is located above the rotating disk (7). The rotating disk (7) is nested in the installation cavity (27). Multiple balls (28) are movably embedded in the side wall of the rotating disk (7). The balls (28) abut against the inner wall of the installation cavity (27).

6. The mixing device for a high-efficiency extraction tank according to claim 3, characterized in that: The drive shaft (10) and the second connecting column (17) are integrally machined.

7. The mixing device for a high-efficiency extraction tank according to claim 3, characterized in that: The stirring shaft (13), axial flow blades (14) and radial flow blades (15) are all made of 316L stainless steel.

8. The mixing device for a high-efficiency extraction tank according to claim 1, characterized in that: The upper side wall of the cylindrical trough (1) is provided with an overflow pipe (29), the overflow pipe (29) is at a height higher than the axial flow blade (14), and a valve is installed on the overflow pipe (29).

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