High-speed mixing device for producing high-purity sodium nitrate

Abstract

The invention discloses a high-speed material mixing device for high-purity sodium nitrate production, and belongs to the technical field of material mixing for high-purity sodium nitrate production, the high-speed material mixing device comprises a support frame and a material mixing tank which is fixedly arranged on the support frame and is used for mixing high-purity sodium nitrate, and the support frame is fixedly provided with a feed hopper for feeding materials into the material mixing tank; a hollow column coaxial with the mixing tank is fixedly connected to the supporting frame, a guide table is fixedly mounted at the lower end of the hollow column, a motor is fixedly mounted on the supporting frame, the output end of the motor is connected with a power shaft, the power shaft rotationally penetrates through the hollow column and the guide table, and a mixing rod is fixedly mounted at the lower end of the power shaft; a main stirring blade is obliquely fixed outside the mixing rod; a stirring mechanism for bidirectionally mixing a high-purity sodium nitrate material is arranged in the mixing tank; the mixing device is provided with the main stirring blade and the auxiliary stirring blade which rotate in two directions, so that the flowability of mixed materials can be improved, the contact range of different materials initially entering the mixing tank is expanded through the rotating distributor, and the overall mixing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of high-purity sodium nitrate production mixing, in particular to a high-speed mixing device for high-purity sodium nitrate production. Background Art

[0002] The mixing process is to evenly mix raw materials or intermediate products of different components to ensure the stable quality of the final product. In the production of high-purity sodium nitrate, industrial-grade nitric acid is usually used as the raw material. Metal salts are added to react, and then microfiltration membranes and composite membrane technologies are used to remove impurities. High-purity sodium nitrate is then prepared through steps such as distillation and high-purity water preparation. Mixing is the basis for the production of high-purity sodium nitrate. The uniformity and speed of mixing affect the quality of industrially prepared high-purity sodium nitrate.

[0003] For example, the patent with publication number CN207385387U discloses an automatic mixing device, including a mixing box, a feeding device is arranged on the upper part of the outside of the mixing box, a first mixing device is arranged at the center position of the inside of the mixing box, and a second mixing device is arranged at the bottom of the inside of the mixing box; the first mixing device includes a first feeding port, a stirring auger, a first discharging port and a stirring drive motor; the second mixing device includes a left mixing device and a right mixing device, which are respectively located on both sides of the first mixing device, the left mixing device includes a left mixing paddle and a left mixing motor, and the right mixing device includes a right mixing paddle and a right mixing motor; after the raw materials are loaded from the feeding device, they are controlled by a screen and a valve, first enter the first mixing device, are preliminarily stirred by the stirring auger, and then enter the second mixing device through a guide groove, are fully stirred by the second mixing device, and finally the raw materials are uniformly mixed.

[0004] For example, the patent with publication number CN206631503U discloses a mixing device, which includes a bracket and a mixing barrel arranged on the bracket, the axis of the mixing barrel is arranged horizontally, two parallel rollers are arranged on the bracket, a first motor is arranged on the bracket, the power output end of the first motor is connected to a driving gear, and a rack ring meshing with the driving gear is arranged circumferentially on the outer wall of the mixing barrel; a rotating shaft passes through the mixing barrel along the axis of the mixing barrel, two mounting plates are arranged in the mixing barrel, the two mounting plates are fixed on the rotating shaft, and a number of plate-shaped stirring rods are arranged between the two mounting plates. Since the mixing barrel and the stirring rod can rotate at different speeds or different directions, the mixing time can be saved and the mixing efficiency can be greatly improved.

[0005] Another example is the patent with publication number CN218795506U which discloses a mixing device for uniform mixing, comprising a mixing barrel and a feeding nozzle, wherein a motor is fixed to the top surface of the mixing barrel by bolts, and the output end of the motor passes through the mixing barrel and is fixedly connected to a stirring shaft; by starting the motor installed on the top of the mixing barrel, the output end of the motor drives the stirring shaft to drive a plurality of stirring blades installed at its bottom, so that the plurality of stirring blades mix and stir the refractory raw materials added at the feeding nozzle. In this process, since a pretreatment shell with an annular bucket structure is welded to the upper surface of the stirring shaft, and two L-shaped rods welded to the inner top surface of the mixing barrel extend to the pretreatment shell, when the stirring shaft drives the pretreatment shell to rotate, the L-shaped rods can pre-mix and stir the materials entering the pretreatment shell. And break up the agglomerated materials, so that the premixed and broken up materials enter the bottom of the mixing barrel from the drop port, thereby improving the uniformity of the mixing of the refractory raw materials; the stirring direction in the mixing equipment is usually unidirectional, and the range of the stirring setting is limited. The materials rotate unidirectionally along the stirring direction and are mixed. The material flow range is limited, and it is easy to form a stirring dead angle during the mixing process, resulting in the materials in some areas unable to fully contact and mix, resulting in uneven mixing and reduced mixing efficiency. In addition, the way the materials are fed into the mixing equipment also affects the efficiency of material mixing. Some existing mixing devices directly pour the materials into the container for stirring. There are fewer direct contact surfaces between different materials, and mixing is completely dependent on later stirring, which greatly affects the overall mixing efficiency.

[0006] In view of the above problems, it is urgent to carry out innovative design based on the original high-purity sodium nitrate production mixing device. Summary of the Invention

[0007] The object of the present invention is to provide a high-speed mixing device for the production of high-purity sodium nitrate, so as to solve the problem proposed in the above background technology that the stirring direction in the mixing equipment is usually unidirectional and the stirring setting range is limited. The materials are mixed by unidirectional rotation along the stirring direction, the material flow range is limited, and the stirring dead angle is easily formed during the mixing process, resulting in the materials in some areas unable to fully contact and mix, thereby causing uneven mixing and reducing the mixing efficiency.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-speed mixing device for producing high-purity sodium nitrate, comprising a support frame and a mixing tank fixedly mounted on the support frame for mixing high-purity sodium nitrate, the support frame being fixed with a feed hopper for feeding materials into the mixing tank, and the support frame being fixedly connected with a hollow column coaxial with the mixing tank, a material guide platform being fixedly mounted at the lower end of the hollow column, a motor being fixedly mounted on the support frame, a power shaft being connected to an output end of the motor, the power shaft being rotatably arranged through the hollow column and the material guide platform, a mixing rod being fixedly mounted at the lower end of the power shaft, a main stirring blade being obliquely fixed on the outside of the mixing rod; a stirring mechanism for bidirectionally mixing high-purity sodium nitrate materials is provided in the mixing tank.

[0009] Preferably, the stirring mechanism includes a fixed disc fixedly installed in the mixing tank, a lower turntable is rotatably connected to the fixed disc, and an upper turntable is rotatably sleeved on the outside of the mixing rod; a fixed frame is fixedly connected between the upper turntable and the lower turntable, and a plurality of inclined auxiliary stirring blades are rotatably provided on the fixed frame.

[0010] Preferably, the auxiliary stirring blades are symmetrically arranged inside the mixing tank with respect to the mixing rod, and the auxiliary stirring blades and the main stirring blades are staggered.

[0011] Preferably, the external fixed sleeve of the mixing rod is provided with a driving gear, the driving gear is meshedly connected with a plurality of driven gears, the plurality of driven gears are meshedly connected with an inner gear ring on the outside, and the inner gear ring is fixedly mounted on the inner side wall of the lower turntable.

[0012] Preferably, an embedded groove is provided in the fixed frame, a rotating rod is rotatably connected in the embedded groove, and the rotating rod is fixedly connected to the auxiliary stirring blade; a volute spring is elastically connected between the rotating rod and the fixed frame.

[0013] Preferably, a shifting rod is fixedly connected to the outside of the mixing rod, and the shifting rod rotates to contact the inclined surface of the auxiliary stirring blade.

[0014] Preferably, the mixing tank is further provided with a material distribution mechanism for controlling the dispersion of high-purity sodium nitrate material into the mixing tank for internal processing.

[0015] Preferably, the material dividing mechanism includes a supporting ring fixedly mounted on the inner wall of the mixing tank, a material divider is rotatably mounted on the supporting ring, and the material divider is rotatably sleeved on the outside of the material guide platform; a plurality of material dividing openings are opened in the material divider at equal angles along the axis of the mixing rod, and the inner wall of the material divider is fixedly connected to the mixing rod through a connecting frame; the material divider is arranged between the feed hopper and the mixing tank.

[0016] Preferably, the distributor is provided with a plurality of bulking rods at equal angles along the axis of the mixing rod, the bulking rods are rotatably connected to the distributor, and the bulking rods are correspondingly arranged at positions directly below the distribution opening.

[0017] Preferably, an inner protective ring is fixedly installed on the lower surface of the material guide platform, and an outer protective ring is fixedly connected to the outside of the inner protective ring; an inner ring is fixed on the outer wall of the inner protective ring, and an outer ring is fixed on the inner wall of the outer protective ring. A plurality of tooth block groups are evenly spaced on the circumferential surfaces of the inner ring and the outer ring, and the tooth block groups on the inner ring and the outer ring are staggered; a plurality of planetary gears are arranged between the inner ring and the outer ring, and the planetary gears rotate circumferentially and are engaged with the tooth block groups, and the planetary gear fixing sleeves are arranged on the bulk material rod.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the high-speed mixing device for producing high-purity sodium nitrate introduces the materials for preparing high-purity sodium nitrate into the mixing tank, and controls the mixing rod to drive the main stirring blade to rotate to achieve uniform mixing of the materials.

[0019] Furthermore, a stirring mechanism for bidirectionally mixing high-purity sodium nitrate materials is provided in the mixing tank. During the rotation of the mixing rod, the fixed frame rotates in the opposite direction to the mixing rod, and the auxiliary stirring blades on the fixed frame rotate in a circle inside the mixing tank, so that the main stirring blades and the auxiliary stirring blades rotate in opposite directions to mix the materials, thereby improving the fluidity of the materials inside the mixing tank, expanding the stirring range, and improving the uniformity and efficiency of the overall mixing of the materials.

[0020] When the mixing rod rotates, it drives the driving gear to rotate synchronously. The driven gear meshing with the outside of the driving gear rotates in the opposite direction to it. The outer side of the driven gear is meshed with an inner ring gear. Under the meshing transmission, the inner ring gear and the driven gear rotate in the same direction. The inner ring gear is fixedly mounted on the lower turntable, thereby achieving the purpose of controlling the mixing rod and the fixed frame to rotate in the opposite direction.

[0021] When the fixed frame and the mixing rod rotate in opposite directions, the shifting rod fixed on the mixing rod intermittently contacts the inclined surface of the auxiliary stirring blade on the fixed frame. The auxiliary stirring blade rotates under the thrust of the shifting rod, further expanding the range of its stirring and mixing materials and improving the mixing effect.

[0022] Furthermore, the mixing tank is also provided with a dividing mechanism for controlling the dispersion of high-purity sodium nitrate materials into its internal processing. During the rotation of the mixing rod, the dividing device is driven to rotate synchronously through the connecting frame. The dividing device is arranged between the feed hopper and the mixing tank. The material can be evenly dispersed into the mixing tank along the circumferential direction through the circumferentially distributed dividing ports, thereby increasing the contact range of different materials when they enter the initial state inside the mixing tank, thereby further improving the uniform mixing effect of the materials.

[0023] When the distributor rotates, the multiple bulking bars installed below it rotate in a circle, and the planetary gears on the bulking bars rotate in a circle between the inner ring and the outer ring. When meshing with the gear block groups at different positions, the bulking bars rotate intermittently in the forward and reverse directions. The bulking bars rotate back and forth correspondingly below the distributor port, which can further disperse the material coming down from the distributor port and ensure that the material can be fully dispersed into the mixing tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the support frame of the present invention.

[0025] Figure 2 It is a schematic cross-sectional view of the mixing tank of the present invention.

[0026] Figure 3This is a schematic diagram of the three-dimensional structure of the main stirring blade of the present invention.

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the auxiliary stirring blade of the present invention.

[0028] Figure 5 This is a schematic diagram of the cross-sectional structure of the fixed disc of the present invention.

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the driven gear of the present invention.

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the inner gear ring of the present invention.

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing frame of the present invention.

[0032] Figure 9 It is a schematic diagram of the three-dimensional structure of the scroll spring of the present invention.

[0033] Figure 10 It is a schematic diagram of the three-dimensional structure of the material guiding platform of the present invention.

[0034] Figure 11 It is a schematic diagram of the three-dimensional structure of the bulk bar of the present invention.

[0035] Figure 12 It is a schematic diagram of the three-dimensional structure of the planetary gear of the present invention.

[0036] Figure 13 It is a schematic diagram of the three-dimensional structure of the gear block group of the present invention.

[0037] In the figure: 1. Support frame; 2. Mixing tank; 3. Feed hopper; 4. Hollow column; 5. Material guide table; 6. Motor; 7. Power shaft; 8. Mixing rod; 9. Main stirring blade; 10. Fixed disc; 11. Lower turntable; 12. Upper turntable; 13. Fixed frame; 14. Auxiliary stirring blade; 15. Driving gear; 16. Driven gear; 17. Inner gear ring; 18. Inner groove; 19. Rotating rod; 20. Volute spring; 21. Push rod; 22. Support ring; 23. Distributor; 24. Distributing port; 25. Connecting frame; 26. Bulk rod; 27. Inner protective ring; 28. Outer protective ring; 29. Inner ring; 30. Outer ring; 31. Gear block group; 32. Planetary gear. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figures 1-13 The present invention provides the following technical solution: a high-speed mixing device for the production of high-purity sodium nitrate, comprising a support frame 1 and a mixing tank 2 fixedly mounted on the support frame 1 for mixing high-purity sodium nitrate, a feed hopper 3 fixed on the support frame 1 for feeding materials into the mixing tank 2, and a hollow column 4 coaxial with the mixing tank 2 fixedly connected to the support frame 1, a material guide platform 5 fixedly mounted at the lower end of the hollow column 4, a motor 6 fixedly mounted on the support frame 1, an output end of the motor 6 connected to a power shaft 7, the power shaft 7 rotatably penetrates the hollow column 4 and the material guide platform 5, and a mixing rod 8 fixedly mounted at the lower end of the power shaft 7, a main stirring blade 9 obliquely fixed to the outside of the mixing rod 8; a stirring mechanism for bidirectionally mixing high-purity sodium nitrate materials is provided in the mixing tank 2.

[0040] The stirring mechanism includes a fixed disc 10 fixedly installed in the mixing tank 2, a lower turntable 11 is rotatably connected to the fixed disc 10, and an upper turntable 12 is rotatably sleeved on the outside of the mixing rod 8; a fixing frame 13 is fixedly connected between the upper turntable 12 and the lower turntable 11, and a plurality of inclined auxiliary stirring blades 14 are rotatably provided on the fixing frame 13.

[0041] The auxiliary stirring blades 14 are symmetrically arranged inside the mixing tank 2 with respect to the mixing rod 8 , and the auxiliary stirring blades 14 and the main stirring blades 9 are staggered.

[0042] The outer fixed sleeve of the mixing rod 8 is provided with a driving gear 15 , and the driving gear 15 is meshed with multiple driven gears 16 . The multiple driven gears 16 are meshed with an inner ring gear 17 on the outside. The inner ring gear 17 is fixedly mounted on the inner wall of the lower turntable 11 .

[0043] An embedded groove 18 is formed in the fixing frame 13 , and a rotating rod 19 is rotatably connected to the embedded groove 18 . The rotating rod 19 is fixedly connected to the auxiliary stirring blade 14 . A volute spring 20 is elastically connected between the rotating rod 19 and the fixing frame 13 .

[0044] The outside of the mixing rod 8 is fixedly connected to a shifting rod 21 , which rotates to contact the inclined surface of the auxiliary stirring blade 14 .

[0045] The material for preparing high-purity sodium nitrate is introduced into the distributor 23 through the feed hopper 3. The material in the distributor 23 is dispersed into the interior of the mixing tank 2. When mixing, the motor 6 controls the rotation of the power shaft 7. The power shaft 7 drives the mixing rod 8 to rotate synchronously. The main stirring blade 9 fixed on the mixing rod 8 is set to rotate inside the mixing tank 2 to preliminarily mix the materials inside the mixing tank 2. When the mixing rod 8 rotates, it drives the driving gear 15 to rotate synchronously. The driving gear 15 is meshed with the driven gear 16 and drives the driven gear 16 to rotate in the opposite direction under the meshing transmission. The driven gear 16 drives the external inner ring gear 17 to rotate in the same direction through meshing transmission. The inner ring gear 17 is fixedly mounted on the inner side wall of the lower turntable 11, which can mobilize the lower turntable 11 and the fixed frame 13 to rotate synchronously. The fixed frame 13 rotates in the opposite direction to the mixing rod 8 under the gear meshing transmission, so that the auxiliary stirring blade 14 on the fixed frame 13 rotates in a circle in the opposite direction to the main stirring blade 9. Under the action of two stirring directions, the fluidity of the material is improved, and the stirring range is expanded, so that the material can be mixed evenly at high speed.

[0046] During the rotation of the mixing rod 8, the externally fixed lever 21 is driven to rotate synchronously. When the lever 21 rotates, it intermittently contacts the auxiliary stirring blade 14 rotating in the opposite direction. The lever 21 contacts the inclined surface of the auxiliary stirring blade 14 and pushes it to rotate on the fixed frame 13. When the auxiliary stirring blade 14 rotates, it can further disperse the mixed materials, expand its mixing range, and improve the mixing effect. When the lever 21 rotates away from the auxiliary stirring blade 14, under the action of the elastic rotation force of the scroll spring 20 and the rotating rod 19, as well as the thrust of the stirring material, the auxiliary stirring blade 14 can rotate back to its initial position.

[0047] Example 2: Based on Example 1, a material distribution mechanism is also disclosed. Its specific structure is as follows: The mixing tank 2 is also provided with a material distribution mechanism to control the dispersion of high-purity sodium nitrate material into the mixing tank for processing. The material distribution mechanism includes a support ring 22 fixedly mounted on the inner wall of the mixing tank 2, on which a material distributor 23 is rotatably mounted. The material distributor 23 is rotatably mounted on the outside of the material guide platform 5; the material distributor 23 has multiple material distribution openings 24 formed at equal angles along the axis of the mixing rod 8, and the inner wall of the material distributor 23 is fixedly connected to the mixing rod 8 via a connecting frame 25; the material distributor 23 is arranged between the feed hopper 3 and the mixing tank 2.

[0048] The distributor 23 is provided with a plurality of scattering rods 26 at equal angles along the axis of the mixing rod 8 . The scattering rods 26 are rotatably connected to the distributor 23 and are correspondingly provided directly below the distribution opening 24 .

[0049] An inner protective ring 27 is fixedly installed on the lower surface of the material guide table 5, and an outer protective ring 28 is fixedly connected to the outside of the inner protective ring 27; an inner ring 29 is fixedly sleeved on the outer wall of the inner protective ring 27, and an outer ring 30 is fixedly sleeved on the inner wall of the outer protective ring 28. A plurality of tooth block groups 31 are evenly spaced on the circumferential surfaces of the inner ring 29 and the outer ring 30, and the tooth block groups 31 on the inner ring 29 and the outer ring 30 are staggered; a plurality of planetary gears 32 are arranged between the inner ring 29 and the outer ring 30, and the planetary gears 32 rotate circumferentially and are engaged with the tooth block groups 31, and the planetary gears 32 are fixedly sleeved on the bulk material rod 26.

[0050] When the running motor 6 controls the power shaft 7 and the mixing rod 8 to rotate, the outside of the mixing rod 8 is fixedly connected to the distributor 23 through the connecting frame 25, which can mobilize the distributor 23 to rotate synchronously. The distributor 23 is connected to the upper part of the mixing tank 2 and rotates, so that the material entering the distributor 23 is rotated and dispersed into the mixing tank 2 through the circumferentially distributed distribution ports 24. Different materials have a larger contact range when entering the mixing tank 2, and preliminary mixing has been achieved.

[0051] At the same time, a plurality of bulking rods 26 are provided below the distributor 23. The bulking rods 26 rotate synchronously with the distributor 23. The planetary gears 32 fixed on the bulking rods 26 rotate in a circle between the inner ring 29 and the outer ring 30. During the circular rotation, the planetary gears 32 are respectively engaged with the tooth block groups 31 on the inner ring 29 and the outer ring 30. Under the meshing transmission, the planetary gears 32 can be controlled to rotate back and forth. The planetary gears 32 drive the bulking rods 26 to rotate synchronously. The bulking rods 26 are arranged directly below the distribution port 24. They can further disperse the material falling from the distribution port 24, so that the material can be fully dispersed into the mixing tank 2, greatly shortening the material mixing time and improving the efficiency of preparing high-purity sodium nitrate.

[0052] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-speed mixing device for producing high-purity sodium nitrate, comprising a support frame (1) and a mixing tank (2) fixedly mounted on the support frame (1) for mixing high-purity sodium nitrate, characterized in that: A feeding hopper (3) for feeding materials into the mixing tank (2) is fixed on the support frame (1), and a hollow column (4) coaxial with the mixing tank (2) is fixedly connected to the support frame (1), a material guide platform (5) is fixedly installed at the lower end of the hollow column (4), a motor (6) is fixedly installed on the support frame (1), an output end of the motor (6) is connected to a power shaft (7), the power shaft (7) is rotatably arranged in the hollow column (4) and the material guide platform (5), and a mixing rod (8) is fixedly installed at the lower end of the power shaft (7), and a main stirring blade (9) is fixedly fixed on the outside of the mixing rod (8); The mixing tank (2) is provided with a stirring mechanism for bidirectionally mixing high-purity sodium nitrate materials.

2. A high-speed mixing device for producing high-purity sodium nitrate according to claim 1, characterized in that: The stirring mechanism comprises a fixed disc (10) fixedly mounted in the mixing tank (2), a lower turntable (11) being rotatably connected to the fixed disc (10), and an upper turntable (12) being rotatably sleeved on the outside of the mixing rod (8); A fixing frame (13) is fixedly connected between the upper turntable (12) and the lower turntable (11), and a plurality of inclined auxiliary stirring blades (14) are rotatably arranged on the fixing frame (13).

3. A high-speed mixing device for producing high-purity sodium nitrate according to claim 2, characterized in that: The auxiliary stirring blades (14) are symmetrically arranged inside the mixing tank (2) with respect to the mixing rod (8), and the auxiliary stirring blades (14) and the main stirring blades (9) are staggered.

4. A high-speed mixing device for producing high-purity sodium nitrate according to claim 3, characterized in that: The outer fixed sleeve of the mixing rod (8) is provided with a driving gear (15), and the driving gear (15) is meshedly connected to a plurality of driven gears (16). The plurality of driven gears (16) are meshedly connected to an inner ring gear (17) on the outside. The inner ring gear (17) is fixedly mounted on the inner side wall of the lower turntable (11).

5. A high-speed mixing device for producing high-purity sodium nitrate according to claim 2, characterized in that: An embedded groove (18) is provided in the fixed frame (13), a rotating rod (19) is rotatably connected to the embedded groove (18), and the rotating rod (19) is fixedly connected to the auxiliary stirring blade (14); A volute spring (20) is elastically connected between the rotating rod (19) and the fixing frame (13).

6. A high-speed mixing device for producing high-purity sodium nitrate according to claim 5, characterized in that: The outside of the mixing rod (8) is fixedly connected to a shifting rod (21), which rotates to contact the inclined surface of the auxiliary stirring blade (14).

7. A high-speed mixing device for producing high-purity sodium nitrate according to claim 1, characterized in that: The mixing tank (2) is also provided with a material distribution mechanism for controlling the dispersion of high-purity sodium nitrate material into the mixing tank for internal processing.

8. A high-speed mixing device for producing high-purity sodium nitrate according to claim 7, characterized in that: The material distribution mechanism comprises a supporting ring (22) fixedly mounted on the inner wall of the mixing tank (2), a material distributor (23) being rotatably mounted on the supporting ring (22), and the material distributor (23) being rotatably sleeved on the outside of the material guide platform (5); The distributor (23) is provided with a plurality of distribution openings (24) at equal angles along the axis of the mixing rod (8), and the inner side wall of the distributor (23) is fixedly connected to the mixing rod (8) via a connecting frame (25); The distributor (23) is arranged between the feed hopper (3) and the mixing tank (2).

9. A high-speed mixing device for producing high-purity sodium nitrate according to claim 8, characterized in that: The distributor (23) is provided with a plurality of scattering rods (26) at equal angles along the axis of the mixing rod (8). The scattering rods (26) are rotatably connected to the distributor (23), and the scattering rods (26) are correspondingly arranged at a position directly below the distribution opening (24).

10. A high-speed mixing device for producing high-purity sodium nitrate according to claim 9, characterized in that: An inner protective ring (27) is fixedly mounted on the lower surface of the material guide platform (5), and an outer protective ring (28) is fixedly connected to the outside of the inner protective ring (27); An inner ring (29) is provided on the outer wall fixing sleeve of the inner protective ring (27), and an outer ring (30) is provided on the inner wall fixing sleeve of the outer protective ring (28). A plurality of tooth block groups (31) are evenly spaced on the circumferential surfaces of the inner ring (29) and the outer ring (30), and the tooth block groups (31) on the inner ring (29) and the outer ring (30) are staggered. A plurality of planetary gears (32) are provided between the inner ring (29) and the outer ring (30). The planetary gears (32) rotate in a circular motion and mesh with the gear block group (31). The planetary gears (32) are fixedly sleeved on the bulk material rod (26).

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