A reaction kettle for producing fluoride

Abstract

The application relates to the technical field of reaction kettles, and discloses a reaction kettle for fluorine salt production and preparation, which comprises a reaction kettle main body, the reaction kettle main body comprises a reaction tank, a mixing unit, the mixing unit comprises a fixing frame arranged at the end of a rotating shaft away from a motor, a plurality of groups of mounting frames are uniformly distributed in a ring shape on the fixing frame, and mixing blades are mounted on the mounting frames; when a driving angle adjusting mechanism moves, each group of mixing blades in the plurality of groups of mixing blades can independently rotate around the rotating shaft line of the mounting frame, so that the rotating angle of each group of mixing blades relative to the mounting frame is adjusted. In the fluorine salt production process, a plurality of groups of mixing blades in the same stirring plane are subjected to gradient adjustment at different angles, the core function is that, according to the three-phase characteristics of the fluorine salt raw material system and the reaction demand, a force field gradient and a flow field are complementarily formed through angle difference, stable and efficient mixing conditions are provided for the fluorine salt reaction, the fluorine salt product purity is improved, and the impurity generation risk is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of reaction kettles, in particular to a reaction kettle for fluorine salt production and preparation. BACKGROUND

[0002] Fluoride salt is a key basic raw material in the fields of metallurgy, chemical industry, building materials and new energy, and its production process needs to complete core processes such as raw material dissolution, double salt reaction and crystal preparation in a reaction kettle. However, the fluoride salt raw material is mostly solid crystal particles, which has poor flowability and is easy to be caked due to moisture, so enough mixing intensity is needed to break up the agglomerates to ensure the dissolution efficiency; in addition, the particle size uniformity and purity of the fluoride salt crystals directly affect the downstream application, for example, the particle size of metallurgical-grade aluminum fluoride needs to be controlled within 50-150 mu m, and the impurity ion residue needs to be avoided in the building material sodium fluorosilicate, and the mixing process needs to prevent the crystal from being excessively broken or locally retained to cause uneven reaction. In addition, the fluoride salt reaction is usually carried out in steps, such as dissolution, complexation and crystallization, and the mixing system needs to have dynamic adaptation capability due to the significant difference in mixing intensity and flow field form requirements in different stages.

[0003] At present, the reaction kettle for fluoride salt production in the industry generally adopts a traditional stirring structure, which is composed of fixed-angle stirring blades, a driving motor and a stirring shaft. However, this structure still has some technical defects that are difficult to overcome in practical application, which seriously restricts the production efficiency and product quality of fluorine compounds:

[0004] The traditional blade is designed at a single angle, which can only generate a one-way driving force on the medium, such as only radial diffusion or only axial transport, forming a one-way flow field. For example, the blade with only radial diffusion function will form a static zone near the center of the stirring shaft in the reaction tank due to insufficient driving force, and a slow flow zone near the inner wall of the tank due to flow velocity decay, and the fluoride medium in these two zones is difficult to exchange with the medium in the main flow zone, which is easy to cause local accumulation of raw materials during long-term operation. The accumulated raw materials not only reduce the utilization rate, but also may generate impurities due to excessive local reaction, or cause fluctuations in product purity due to insufficient reaction, and even cause scaling and blockage of the discharge port. SUMMARY

[0005] The application provides a reaction kettle for fluorine compound production and preparation, which solves the technical problem that the blade with only radial diffusion function in the related art will form a static zone near the center of the stirring shaft in the reaction tank due to insufficient driving force, and a slow flow zone near the inner wall of the tank due to flow velocity decay, and the fluoride medium in these two zones is difficult to exchange with the medium in the main flow zone, which is easy to cause local accumulation of raw materials during long-term operation.

[0006] The application provides a fluorine production preparation reaction kettle, which comprises a reaction kettle main body, the reaction kettle main body comprises a reaction tank, the inside of the reaction tank is provided with a rotating shaft, a mixing unit is arranged on the rotating shaft, the mixing unit comprises a fixing frame arranged on the end of the rotating shaft away from the motor, a plurality of groups of mounting frames are uniformly distributed in the form of a ring on the fixing frame, the mounting frames are rotationally connected to the fixing frame through bearings, mixing blades are arranged on the mounting frames, and angle adjusting mechanisms are arranged on the mixing blades.

[0007] When the angle adjusting mechanisms are driven to move, each group of the mixing blades can rotate around the rotation axis of the mounting frame independently, so that the rotation angle of each group of the mixing blades relative to the mounting frame is adjusted; the rotation angles of the plurality of groups of the mixing blades are distributed in a preset distribution direction along the mounting frame in a continuously gradually increasing or continuously gradually decreasing gradient, so that the gradient partition disturbance of the mixed medium is realized through the angle gradient.

[0008] As a further optimization scheme of the application, the angle adjusting mechanism comprises a first universal ball mounted on the rotating shaft, the outer part of the first universal ball is movably connected with a control seat, a first connecting rod is arranged between each group of the mounting frames and the control seat, the two ends of the first connecting rod are movably connected with second universal balls, and the second universal balls are respectively mounted on the mounting frames and the control seat.

[0009] As a further optimization scheme of the application, the control seat is provided with an adjusting unit, so that the control seat is driven to tilt and move through the adjusting unit, thereby adjusting the angle position of the mixing blades.

[0010] As a further optimization scheme of the application, the first connecting rods are uniformly distributed in the form of a ring on the outer part of the control seat, and a plurality of groups of the first connecting rods are arranged on the same side of a plurality of groups of the mounting frames, when the first connecting rods drive the mounting frames to rotate, the mounting frames are synchronously driven to rotate towards the same direction.

[0011] As a further optimization scheme of the application, the control seat is provided with a second connecting rod, the inner part of the second connecting rod is movably connected with a third universal ball, the third universal ball is mounted on the control seat, one end of the second connecting rod away from the third universal ball is rotationally connected with a swing arm through a rotating shaft, and one end of the swing arm away from the second connecting rod is rotationally connected with the fixing frame through a rotating shaft.

[0012] As a further optimization scheme of the application, the adjusting unit comprises a movable sleeve arranged on the outer part of the rotating shaft, a cylinder body is mounted on the movable sleeve, a partition plate is mounted in the inner part of the cylinder body, the partition plate divides the inner part of the cylinder body into an upper chamber and a lower chamber, a plurality of gas outlets are formed in the partition plate and communicate the upper chamber and the lower chamber, a piston block is arranged in the lower chamber, and a plurality of guide rods are mounted on the piston block.

[0013] As a further optimization scheme of the present application, a slot is formed on the cylinder body and is adapted to the guide rod, and the slot and the guide rod are in sliding connection, and a spring is further arranged inside the lower chamber, and one end of the spring is fixedly connected with the piston block, and the other end of the spring is fixedly connected with the partition plate.

[0014] As a further optimization scheme of the present application, a plurality of groups of gas injection ports are annularly formed on the movable sleeve at positions corresponding to the upper chamber, a ring-shaped slot is formed on the outside of the rotating shaft, and an airflow channel is formed between the ring-shaped slot and the movable sleeve, and the airflow channel is in communication with the interiors of the gas injection ports.

[0015] As a further optimization scheme of the present application, a driving unit is arranged on the movable sleeve, the driving unit comprises a pneumatic disc arranged on the movable sleeve, a first gas cavity and a second gas cavity are formed in the interior of the pneumatic disc, a gas injection pipe is mounted on the pneumatic disc and is in communication with the interior of the first gas cavity, a plurality of groups of air inlet ports are annularly formed on the movable sleeve at positions corresponding to the first gas cavity, and the air inlet ports are in communication with the interior of the airflow channel.

[0016] As a further optimization scheme of the present application, two groups of connecting pipes are further mounted on the pneumatic disc and are in communication with the interior of the second gas cavity, a connecting shaft is bearing-connected in the interior of the second gas cavity, and an impeller is mounted on the connecting shaft, a first gear wheel is mounted on one end of the connecting shaft penetrating through the pneumatic disc, a second gear wheel is meshingly connected to the first gear wheel, and the second gear wheel is fixedly connected with the movable sleeve.

[0017] The present application has the following advantages: in the fluorosalt production process, multiple groups of mixing blades in the same stirring plane are adjusted at different angles, and the core function is to form a force field gradient and a flow field complementation through angle differences according to the three-phase characteristics of the fluorosalt raw material system and the reaction requirements.

[0018] The small-angle blade mainly has a radial component, which can diffuse the solid particles in the shaft center region to the tank wall direction to avoid particle deposition and caking, and can also assist the diffusion of reaction heat with the aid of the tank wall cooling structure to prevent local heat accumulation from causing premature crystallization of fluorosalt; the large-angle blade mainly has an axial component, which can drive the liquid phase medium near the tank wall and the gaseous ammonia water to flow back to the shaft center, breaking the slow-flowing area around the tank wall, reducing the escape of ammonia gas into the liquid phase, and also dispersing the agglomerates of zirconium dioxide, titanium white and other raw materials by means of stronger shear force, thereby ensuring sufficient complexation reaction of fluorine ions and metal / non-metal ions; the middle-angle blade plays a smooth transition role, realizing the orderly connection of radial and axial forces and weak and strong shear forces, and finally constructing a composite flow field of radial diffusion and axial backflow in the same stirring plane.

[0019] The flow field can not only completely eliminate the stagnation dead angle near the shaft center and the tank wall, but also realize uniform contact of gas, liquid and solid three-phase media in the whole area, stabilize the reaction environment, reduce the pH imbalance caused by uneven distribution of media, avoid the generation of hydroxide precipitate or free fluoride ions, and simultaneously consider the protection of solid particles and efficient treatment of aggregates, thereby providing stable and efficient mixing conditions for fluorine salt reaction, improving the purity of fluorine salt products, and reducing the risk of impurity generation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0021] Figure 2 is a schematic diagram of the cross-sectional structure of the present application;

[0022] Figure 3 is a schematic diagram of the local three-dimensional structure of the present application;

[0023] Figure 4 is a schematic diagram of the local three-dimensional structure of the mixing unit of the present application Figure 1 ;

[0024] Figure 5 is a schematic diagram of the local three-dimensional structure of the mixing unit of the present application Figure 2 ;

[0025] Figure 6 is a schematic diagram of the three-dimensional cross-sectional structure of the rotating shaft, mixing unit, adjusting unit, protective cover and driving unit of the present application;

[0026] Figure 7 is an enlarged view of structure A in the Figure 6 of the present application;

[0027] Figure 8 is an enlarged view of structure B in the Figure 6 of the present application;

[0028] Figure 9 is a schematic diagram of the three-dimensional cross-sectional structure of the driving unit of the present application.

[0029] In the diagram: 100, Reactor body; 110, Reactor tank; 120, Feed inlet; 130, Discharge outlet; 140, Motor; 150, Rotating shaft; 200, Mixing unit; 210, Fixing frame; 220, Mounting frame; 230, Mixing blades; 240, First universal ball joint; 250, Control base; 260, First connecting rod; 270, Second universal ball joint; 280, Second connecting rod; 290, Swing arm; 300, Adjustment unit; 310, Movable sleeve; 320, Cylinder body; 330. 340. Partition plate; 350. Air outlet; 360. Piston block; 370. Guide rod; 380. Spring; 390. Air inlet; 400. Airflow channel; 500. Protective cover; 510. Drive unit; 520. Pneumatic disc; 530. First air chamber; 531. Second air chamber; 532. Connecting shaft; 533. Impeller; 540. Air inlet pipe; 550. Air inlet; 560. Annular slide rail; 570. Connecting pipe; 580. First gear; 590. Second gear; 600. Connecting frame. Detailed Implementation

[0030] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0031] Example 1: According to the appendix Figure 1 and attached Figure 2 As shown, a reaction vessel for fluoride production includes a reaction vessel body 100, the reaction vessel body 100 includes a reaction tank 110, the reaction tank 110 is equipped with a feed inlet 120, a discharge outlet 130 and a motor 140, the reaction tank 110 is provided with a rotating shaft 150 inside, and the output shaft of the motor 140 is fixedly connected to the rotating shaft 150.

[0032] And, the mixing unit 200, according to the appendix Figure 3 To be continued Figure 5 As shown, the mixing unit 200 includes a fixed frame 210 disposed at the end of the rotating shaft 150 away from the motor 140. Multiple sets of mounting frames 220 are evenly distributed in a ring on the fixed frame 210, and the mounting frames 220 and the fixed frame 210 are rotatably connected by bearings. Mixing blades 230 are mounted on the mounting frames 220, and the mixing blades 230 are provided with an angle adjustment mechanism.

[0033] It needs to be understood that when the angle adjustment mechanism is driven to move, each of the plurality of groups of mixing blades 230 can be independently rotated around the rotation shaft 150 of the mounting frame 220 to adjust the rotation angle of each group of mixing blades 230 relative to the mounting frame 220; the rotation angles of the plurality of groups of mixing blades 230 are distributed in a preset distribution direction along the mounting frame 220 in a continuously increasing or continuously decreasing gradient, so that the gradient of the angles achieves a gradient disturbance on the mixing medium.

[0034] In operation, after the motor 140 is started, the output shaft transmits torque to the rotating shaft 150 inside the reaction tank 110, driving the fixed frame 210 connected to the end of the rotating shaft 150 to rotate synchronously; since the mounting frames 220 are uniformly distributed in a ring around the fixed frame 210, the rotation of the fixed frame 210 further drives all the mounting frames 220 and the mixing blades 230 on the mounting frames 220 to make a circular motion around the central axis of the rotating shaft 150, providing an initial radial diffusion power for the mixing medium and avoiding local stagnation of the medium in the reaction tank 110.

[0035] Moreover, through synchronous driving of the angle adjustment mechanism, the rotation angles of the plurality of groups of mixing blades 230 are continuously changed along the preset distribution direction of the mounting frame 220. For example, in the circumferential direction, the blade angle is continuously increased from 15° to 45°, forming an angle gradient field.

[0036] Specifically, in the state of pre-locking of the angle adjustment mechanism, the plurality of groups of mixing blades 230 in the same circumferential stirring plane maintain a continuously increasing angle gradient of 15°-45°, and the angle is taken as the reference of the included angle between the mixing blades 230 and the circumferential tangent direction.

[0037] Among them, the radial component force of the 15° small-angle mixing blade 230 dominates the fluorinated medium, mainly driving the medium to diffuse towards the inner wall of the reaction kettle, and the shear force is weak to avoid excessive fragmentation of particles, the axial component force of the 45° large-angle mixing blade 230 is significantly enhanced, achieving radial diffusion while driving the medium to transport along the axis direction of the rotating shaft 150, and the shear force is stronger to disperse the medium agglomerates, and the intermediate-angle mixing blade 230 achieves a smooth transition of the two acting forces, finally the acting forces of mixing blades of different angles are superimposed, constructing a composite flow field of radial diffusion, axial transport and circumferential circulation in the reaction tank 110, and completing the gradient disturbance and efficient mixing of the fluorinated medium without dead angle.

[0038] In summary, the problem of easy formation of one-way flow field by traditional single-angle blades, such as only radial flow, leading to insufficient mixing of the medium in the reaction kettle, such as the area close to the inner wall or the shaft center, and further causing local accumulation of fluorinated raw materials, is effectively solved.

[0039] In an embodiment, according to the attached Figure 4 and the attached Figure 5As shown, the angle adjusting mechanism comprises a first universal ball 240 mounted on the rotating shaft 150, and an external movable connection of the first universal ball 240 has a control seat 250, each set of mounting racks 220 and the control seat 250 are provided with a first connecting rod 260, both ends of the first connecting rod 260 are movably connected with a second universal ball 270, and the second universal ball 270 is mounted on the mounting rack 220 and the control seat 250 respectively.

[0040] Specifically, the first connecting rod 260 is uniformly distributed in a ring shape outside the control seat 250, and a plurality of sets of first connecting rods 260 are arranged on the same side of a plurality of sets of mounting racks 220, when the first connecting rod 260 drives the mounting rack 220 to rotate, the mounting rack 220 is synchronously driven to rotate towards the same direction.

[0041] When driving the control seat 250 to perform a twisting motion, a plurality of sets of first connecting rods 260 are controlled to twist around the second universal ball 270 as a rotation point, thereby driving the mounting rack 220 to perform angle adjustment.

[0042] According to the accompanying drawings Figure 5 As shown, the control seat 250 is provided with a second connecting rod 280, and the inside of the second connecting rod 280 is movably connected with a third universal ball, the third universal ball is mounted on the control seat 250, and the end of the second connecting rod 280 away from the third universal ball is rotatably connected with a swing arm 290 through a rotating shaft, and the end of the swing arm 290 away from the second connecting rod 280 is rotatably connected with the fixed rack 210 through a rotating shaft.

[0043] It should be noted that the rotating shaft connection between the fixed rack 210 and the swing arm 290 is provided with a torsional spring, thereby facilitating driving the swing arm 290 to reset. When the control seat 250 is disengaged, the swing arm 290 can drive the control seat 250 to perform a reset motion under the action of the torsional spring, so that the upper surface of the control seat 250 forms a planar state.

[0044] It should be noted that the inside of the control seat 250 is provided with a first spherical groove matched with the first universal ball 240, both ends of the first connecting rod 260 are provided with a second spherical groove matched with the second universal ball 270, and the inside of the second connecting rod 280 is provided with a third spherical groove matched with the third universal ball. Through the matching arrangement of the first spherical groove, the second spherical groove and the third spherical groove, no dead angle movement in three-dimensional space is realized, which can satisfy the full-range adjustment of the blade angle of 0°-90°. This high adaptability enables the reaction kettle body 100 to match the dynamic demand of fluoride reaction in real time.

[0045] In an embodiment, according to the accompanying drawings Figure 2 , the accompanying drawings Figure 6 and the accompanying drawings Figure 7As shown, the control seat 250 is provided with an adjusting unit 300 to drive the control seat 250 to tilt to adjust the angle position of the mixing blade 230. The adjusting unit 300 includes a movable sleeve 310 arranged outside the rotating shaft 150, a cylinder body 320 mounted on the movable sleeve 310, and a partition plate 330 mounted in the cylinder body 320. The partition plate 330 divides the cylinder body 320 into an upper chamber and a lower chamber, and a plurality of gas outlets 340 are arranged on the partition plate 330 to communicate the upper chamber and the lower chamber. A piston block 350 is arranged in the lower chamber, and a plurality of guide rods 360 are mounted on the piston block 350.

[0046] Specifically, according to the accompanying drawings, Figure 7 As shown, the cylinder body 320 is provided with a groove matched with the guide rods 360, and the groove is in sliding connection with the guide rods 360. The lower chamber is further provided with a spring 370, one end of which is fixedly connected with the piston block 350, and the other end of which is fixedly connected with the partition plate 330.

[0047] The plurality of guide rods 360 are of different lengths, and the ends of the plurality of guide rods 360 away from the piston block 350 jointly form an inclined bottom surface, so that the plurality of guide rods 360 can drive the control seat 250 to tilt when the cylinder body 320 rotates.

[0048] Further, according to the accompanying drawings, Figure 7 As shown, the movable sleeve 310 is annularly provided with a plurality of gas injection ports 380 corresponding to the upper chamber. The rotating shaft 150 is provided with an annular groove, and the annular groove and the movable sleeve 310 form an airflow channel 390, which is in communication with the gas injection ports 380.

[0049] In operation, the annular groove on the outer part of the rotating shaft 150 and the inner wall of the movable sleeve 310 form a closed airflow channel 390. The gas provided by an external gas source is transmitted to the annularly distributed gas injection ports 380 on the movable sleeve 310 through the airflow channel 390, and then enters the upper chamber of the cylinder body 320. The relative rotation between the rotating shaft 150 and the movable sleeve 310 ensures the stable supply of gas flow in the rotating state, avoiding pipeline winding or rupture.

[0050] The gas entering the upper chamber flows into the lower chamber through the plurality of gas outlets 340 on the partition plate 330. As the gas pressure in the lower chamber increases, the gas thrust overcomes the pre-tightening force of the spring 370, and pushes the piston block 350 to move downward along the cylinder body 320. The guide rods 360 move synchronously with the piston block 350, and are guided to slide through the groove on the cylinder body 320, ensuring the stability of the movement. Conversely, when the gas source pressure decreases, the elastic restoring force of the spring 370 pushes the piston block 350 to reset upward, realizing reverse movement.

[0051] It should be noted that the ends of the multiple guide rods 360 furthest from the piston block 350, due to their varying lengths, collectively form an inclined bottom surface; that is, the line connecting the ends of the guide rods 360 forms an inclined plane. When the cylinder body 320 rotates with the movable sleeve 310, the contact point between this inclined bottom surface and the control seat 250 changes with the rotation angle. This creates a height difference drive through the length difference of the guide rods 360, forcing the control seat 250 to tilt around its rotation center.

[0052] The tilt angle of the control seat 250 is directly related to the displacement of the piston block 350, i.e. the air pressure. The greater the air pressure, the more the piston block 350 moves downward, and the more significant the change in the contact depth between the inclined surface at the end of the guide rod 360 and the control seat 250, resulting in a larger tilt angle; conversely, the angle decreases.

[0053] Ultimately, the tilting motion of the control seat 250 drives the mixing blades 230 to deflect synchronously, achieving dynamic adjustment of the angle and position.

[0054] Example 3: In one embodiment, according to the appendix Figure 3 and attached Figure 7 As shown, a protective cover 400 is provided on the outside of the cylinder body 320. One end of the protective cover 400 is fixedly connected to the movable sleeve 310, and the other end of the protective cover 400 is fixedly connected to the control seat 250. The protective cover 400 is used to protect the components of the adjustment unit 300, prevent corrosion from long-term operation, and extend its service life.

[0055] Example 4: In one example, according to the appendix Figure 2 Appendix Figure 6 and attached Figure 8 As shown, a drive unit 500 is provided on the movable sleeve 310. The drive unit 500 includes a pneumatic disc 510 disposed on the movable sleeve 310. The pneumatic disc 510 has a first air chamber 520 and a second air chamber 530 inside. An air injection pipe 540 is installed on the pneumatic disc 510 and is connected to the interior of the first air chamber 520. Multiple sets of air inlets 550 are provided in a ring shape at the positions corresponding to the first air chamber 520 on the movable sleeve 310, and the air inlets 550 are connected to the interior of the airflow channel 390.

[0056] The first air chamber 520 is provided with an annular groove, and an annular slide rail 560 is slidably connected in the annular groove. The annular slide rail 560 is installed on the movable sleeve 310.

[0057] During operation, the core function of the first air chamber 520 is to stably transmit external air to the airflow channel 390 of the movable sleeve 310, providing a power source for the adjustment unit 300 mentioned earlier. The specific process is as follows:

[0058] The external gas source is connected to the first air cavity 520 of the pneumatic disc 510 through the gas injection pipe 540. Since the first air cavity 520 is connected to the movable sleeve 310 through the annular sliding groove and the annular sliding rail 560, a sliding sealing connection is formed. The annular sliding rail 560 is fixed to the movable sleeve 310 and can rotate freely in the annular sliding groove of the pneumatic disc 510. Therefore, even if the movable sleeve 310 rotates, the first air cavity 520 can still maintain a closed state.

[0059] The gas in the first air cavity 520 flows into the gas flow channel 390 between the movable sleeve 310 and the rotating shaft 150 through the multiple sets of annularly distributed gas inlets 550 on the movable sleeve 310, and finally provides the cylinder body 320 of the adjusting unit 300 with gas pressure driving.

[0060] The annular sliding rail 560 ensures the rotational freedom of the movable sleeve 310 relative to the pneumatic disc 510, and avoids the leakage of the gas in the first air cavity 520 through the sliding sealing structure, thereby ensuring the stability and efficiency of the gas flow transmission.

[0061] In another embodiment, according to the drawings Figure 8 and the drawings Figure 9 As shown, two sets of connecting pipes 570 are also installed on the pneumatic disc 510, and the connecting pipes 570 are connected to the inside of the second air cavity 530. The inside of the second air cavity 530 is connected with a connecting shaft 531, and the connecting shaft 531 is installed with an impeller 532. The connecting shaft 531 is installed with a first gear 580 at one end penetrating through the pneumatic disc 510, and the first gear 580 is engaged with a second gear 590. The second gear 590 is fixedly connected with the movable sleeve 310.

[0062] It should be noted that the connecting frame 600 is installed on the pneumatic disc 510, and the connecting frame 600 is fixedly connected with the inner wall of the reaction kettle 110.

[0063] In operation, the core function of the second air cavity 530 is to realize the rotational movement of the movable sleeve 310 through pneumatic driving, and then drive the control seat 250 and the mixing blade 230 associated therewith to rotate synchronously. The specific process is as follows:

[0064] The connecting pipes 570 are connected with external pipelines, one set of which is for gas inlet and the other set of which is for gas outlet. The external gas source is connected to the second air cavity 530 through the connecting pipes 570. The gas flow impacts the impeller 532 in the second air cavity 530, and drives the impeller 532 to rotate around the connecting shaft 531.

[0065] The output end of the connecting shaft 531 is installed with the first gear 580, which is engaged with the second gear 590 fixed on the movable sleeve 310. Therefore, the rotational movement of the impeller 532 is transmitted to the movable sleeve 310, and the movable sleeve 310 is driven to rotate around its own axis, thereby facilitating the inclination and twisting of the control seat 250.

[0066] The above describes the embodiments of the present application, but the embodiments are not limited to the above-described specific embodiments, and the above-described specific embodiments are merely illustrative but not restrictive, and those skilled in the art can make many forms under the inspiration of the embodiments, which all belong to the protection of the embodiments.

Claims

1. A reaction vessel for the production of fluorides, characterized in that The utility model relates to a reaction kettle, which comprises the following parts: a reaction kettle body, which comprises a reaction tank with a rotating shaft arranged inside; a mixing unit, which comprises a fixed frame arranged at one end of the rotating shaft away from a motor, a plurality of groups of mounting frames are uniformly distributed in a ring shape on the fixed frame, the mounting frames and the fixed frame are rotationally connected through bearings, mixing blades are arranged on the mounting frames, and angle adjusting mechanisms are arranged on the mixing blades; when the angle adjusting mechanisms are driven to move, each group of the mixing blades can rotate around the rotation axis of the mounting frame independently to adjust the rotation angle of each group of the mixing blades relative to the mounting frame; the rotation angles of the plurality of groups of the mixing blades are distributed in a continuous and gradually increasing or decreasing gradient along the preset distribution direction of the mounting frame, so that the gradient distribution of the angles can realize the partition gradient disturbance on the mixed medium; the angle adjusting mechanisms comprise a first universal ball mounted on the rotating shaft, a control seat is movably connected to the outside of the first universal ball, a first connecting rod is arranged between each group of the mounting frames and the control seat, second universal balls are movably connected to the two ends of the first connecting rod, and the second universal balls are respectively mounted on the mounting frames and the control seat; an adjusting unit is arranged on the control seat, the control seat is driven to tilt by the adjusting unit, and the angle position of the mixing blades is adjusted; the adjusting unit comprises a movable sleeve arranged outside the rotating shaft, a cylinder body is mounted on the movable sleeve, a partition plate is mounted in the cylinder body, the partition plate divides the cylinder body into an upper chamber and a lower chamber, a plurality of gas outlets are formed in the partition plate and connect the upper chamber and the lower chamber, a piston block is arranged in the lower chamber, and a plurality of guide rods are mounted on the piston block; a groove is formed in the cylinder body and matches the guide rods, the groove and the guide rods are in sliding connection, and a spring is further arranged in the lower chamber; a plurality of gas injection ports are annularly formed in the position corresponding to the upper chamber of the movable sleeve, a ring-shaped groove is formed in the outside of the rotating shaft, and an airflow channel is formed between the ring-shaped groove and the movable sleeve, and the airflow channel and the gas injection ports are in communication.

2. The fluorine production reaction vessel according to claim 1, wherein the first connecting rods are uniformly distributed in a ring shape outside the control seat, and a plurality of groups of the first connecting rods are arranged on the same side of a plurality of groups of the mounting frames, when the first connecting rods drive the mounting frames to rotate, the mounting frames are synchronously driven to rotate towards the same direction.

3. The fluorine production reaction vessel according to claim 1, wherein a second connecting rod is arranged on the control seat, a third universal ball is movably connected in the second connecting rod, the third universal ball is mounted on the control seat, a swing arm is rotationally connected to the end of the second connecting rod away from the third universal ball through a rotating shaft, and the end of the swing arm away from the second connecting rod is rotationally connected to the fixed frame through a rotating shaft.

4. The fluorine production reaction vessel according to claim 1, wherein The active sleeve is provided with a driving unit, the driving unit comprises a pneumatic disc provided on the active sleeve, a first air cavity and a second air cavity are formed in the pneumatic disc, a gas injection pipe is installed on the pneumatic disc, the gas injection pipe is communicated with the inside of the first air cavity, a plurality of groups of air inlets are annularly formed at the position corresponding to the first air cavity of the active sleeve, and the air inlets are communicated with the inside of the airflow channel.

5. The fluorine production reaction vessel according to claim 4, wherein Two groups of connecting pipes are also installed on the pneumatic disc, the connecting pipes are communicated with the inside of the second air cavity, a connecting shaft is connected to the inside of the second air cavity, an impeller is installed on the connecting shaft, a first gear is installed on one end of the connecting shaft penetrating through the pneumatic disc, a second gear is engagedly connected to the first gear, and the second gear is fixedly connected with the active sleeve.

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