A production device and production method for hexafluorophosphate

Abstract

The present invention discloses a production device and a production method for hexafluorophosphate, which relates to the technical field of hexafluorophosphate production. The device includes a reaction kettle and a kettle cover. The kettle cover is clamped on the top of the outer wall of the reaction kettle. A stirring motor is installed on the top of the kettle cover, and a mixing component is arranged at the bottom of the kettle cover. The mixing component includes an upper hollow shaft, which is fixedly connected to the output shaft of the stirring motor. The bottom outer wall of the upper hollow shaft is sleeved with a lower hollow shaft, and the bottom end of the inner wall of the upper hollow shaft is fixedly connected with a pump housing; the solution discharged through the one-way valve rotates and discharges in the solution inside the reaction kettle, and discharges with an up-and-down fluctuation. This way can force the upper-layer solution to enter the middle and lower layers, effectively break the solution stratification in the production process of hexafluorophosphate, ensure the uniform distribution of each component in the reaction system, avoid the excessive difference in the concentration of local reactants affecting the reaction efficiency, and make the materials in the entire reaction kettle achieve more sufficient mixing in the vertical direction.

Description

Technical Field

[0001] The present invention relates to the technical field of hexafluorophosphate production, and particularly to a production device and a production method for hexafluorophosphate. Background Art

[0002] The preparation of hexafluorophosphate usually involves gas-liquid-solid multiphase reactions. Generally, a stirred reaction kettle is used to make the materials in different phases fully contact.

[0003] When preparing hexafluorophosphate, the addition of different forms of materials such as solid alkali metal fluorides and liquid hydrogen fluoride is often involved, resulting in their insufficient dispersion in the reaction system, affecting the contact with other reactants and the reaction rate. For example, the density of solid alkali metal fluorides is relatively large and they are prone to sink to the bottom of the kettle, while the density of liquid hydrogen fluoride is relatively small and it will float on the upper layer, which increases the difficulty of stirring. The traditional stirring method can only achieve mixing in a local area, such as near the stirring paddle. For the materials in the area far from the stirring paddle, especially near the bottom and the wall of the kettle, they are still in a stratified state. This will lead to a large difference in the reactant concentration in different parts of the reaction system, affecting the consistency of the reaction.

[0004] Therefore, a production device and a production method for hexafluorophosphate are proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a production device and a production method for hexafluorophosphate to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solutions: A production device and production method for hexafluorophosphate, including a reaction kettle and a kettle cover. The kettle cover is fixedly installed on the upper part of the reaction kettle through bolts. A stirring motor is installed on the top of the kettle cover. A mixing component is arranged at the bottom of the kettle cover. The mixing component includes an upper hollow shaft, and the upper hollow shaft is fixedly connected to the output shaft of the stirring motor. A lower hollow shaft is sleeved on the outer wall of the bottom of the upper hollow shaft. The inner wall bottom end of the upper hollow shaft is fixedly connected with a pump housing. The inner wall bottom end of the upper hollow shaft is fixedly connected with a micro motor. A shaft rod is fixedly connected to the output shaft of the micro motor. One end of the shaft rod away from the micro motor is fixedly connected with a side plate one. A plurality of pump impellers are fixedly connected in an annular array on the side of the side plate one away from the shaft rod. A side plate two is fixedly connected to the sides of the plurality of pump impellers away from the side plate one. A water inlet pipe is fixedly communicated with the outer wall of the pump housing away from the micro motor. A filter hole plate is fixedly connected to the inner wall of the end of the water inlet pipe away from the pump housing. A side bevel gear is fixedly connected to the shaft rod. A support plate is fixedly connected to the outer wall of the pump housing near the side bevel gear. A bottom bevel gear is rotatably connected to the support plate. A reciprocating lead screw is fixedly connected to the bottom end of the bottom bevel gear. A connecting block is fixedly connected to the inner wall of the lower hollow shaft. A sliding plate is rotatably connected to the inner surface of the connecting block. A bellows is fixedly communicated with the bottom of the pump housing. Two stirring paddles are symmetrically and fixedly connected to the outer wall of the bottom end of the lower hollow shaft. Two bottom pipes are symmetrically and fixedly communicated with the bottom end of the bellows. A one-way valve is installed on each side of the inner hole of the two stirring paddles away from the lower hollow shaft.

[0007] Further, a shaking and mixing component is arranged inside the reaction kettle. The shaking and mixing component includes a plurality of springs. The plurality of springs are fixedly connected to the inner wall bottom of the reaction kettle. A chassis is fixedly connected to the tops of the plurality of springs. The chassis is in close fit with the inner side wall of the reaction kettle. A plurality of connecting rods are fixedly connected to the top of the chassis. One end of each of the plurality of connecting rods away from the chassis is fixedly connected with a top plate towards the side of the lower hollow shaft.

[0008] Further, the output shaft of the stirring motor faces the bottom of the kettle cover, and the output shaft of the stirring motor passes through the kettle cover.

[0009] Further, the output shaft of the micro motor faces the pump housing, and the shaft rod passes through the pump housing.

[0010] Further, the end of the water inlet pipe away from the pump housing extends to the middle of the upper hollow shaft and passes through the upper hollow shaft. The end of the water inlet pipe passing through the upper hollow shaft extends downward. The bottom end of the end of the water inlet pipe passing through the upper hollow shaft bends horizontally and is arc-shaped.

[0011] Further, the support plate is located at the bottom of the side bevel gear. The connecting block is sleeved on the reciprocating lead screw. The two stirring paddles and the corresponding bottom pipes on each side are internally connected and communicated.

[0012] Further, the first side plate and the second side plate are circular with the same size. The center position of the second side plate is hollow, and the hollow position of the second side plate corresponds to the connection position between the water inlet pipe and the pump housing. The pump impeller is twisted along the length direction, and the bending direction of the pump impeller is the same as the rotation direction of the output shaft of the micro motor.

[0013] Further, the side bevel gear and the bottom bevel gear are meshed with each other. The slide plate slides in the thread groove of the reciprocating lead screw. The one-way valve is set to open only in one direction towards the end of the stirring paddle away from the lower hollow shaft.

[0014] Further, the top plate is located on the rising trajectory of the stirring paddle, and both sides of the top plate are arc-shaped.

[0015] A production method of hexafluorophosphate includes the following steps:

[0016] Step 1: Prepare the materials required for production. Connect the nitrogen purging machine to the gas interface on the reaction kettle, conduct nitrogen replacement and purging inside the reaction kettle, then connect the feeding machine pipeline to the feeding port on the reaction kettle, and place the materials inside the reaction kettle.

[0017] Step 2: Start the stirring motor and the micro motor through an external controller. At this time, the output shafts of the stirring motor and the micro motor start to rotate.

[0018] Step 3: The rotation of the output shaft of the stirring motor drives the upper hollow shaft, the lower hollow shaft and the two stirring paddles to rotate and stir the solution. The rotation of the output shaft of the micro motor causes the upper layer solution inside the reaction kettle to enter the stirring paddle.

[0019] Step 4: While the output shaft of the micro motor is rotating, through structures such as the reciprocating lead screw, connecting block, and slide plate, the lower hollow shaft moves up and down on the upper hollow shaft, that is, the lower hollow shaft drives the stirring paddle to move up and down reciprocally. Specifically, the stirring paddle rotates with the lower hollow shaft and moves up and down reciprocally, discharging the upper layer solution inside the reaction kettle into the middle and lower layer solutions, and mixing the solutions inside the reaction kettle evenly through the self-movement of the stirring paddle.

[0020] Step 5: While the stirring paddle rotates and moves up and down reciprocally, periodically break up the solid materials on the top of the chassis, and at the same time transmit the vibration to the solution inside the reaction kettle.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The solution discharged through the one-way valve rotates and fluctuates up and down within the solution inside the reaction kettle. This method can force the upper-layer solution to enter the middle and lower regions, effectively breaking the solution stratification during the production of hexafluorophosphate, ensuring the uniform distribution of each component in the reaction system, avoiding excessive local reactant concentration differences that affect the reaction efficiency, and enabling more thorough mixing of the materials in the entire reaction kettle in the vertical direction.

[0023] When the stirring paddle rotates and reciprocates up and down, it can stir the solution in the reaction kettle. Compared with the existing stirring method that only rotates, this movement method can cover more spatial areas. The reciprocating paddle blades can penetrate into the bottom area, turning the bottom solution upward, while the rotating action can also disperse the particles horizontally, thus achieving all-round mixing of the hexafluorophosphate production solution and effectively avoiding material stratification and agglomeration.

[0024] The elastic restoring force of the spring will cause the chassis to vibrate, suspending the solid materials deposited on the top of the chassis again. This dynamic bottom interference, combined with the up-and-down flow mixing of the heavy solution by the mixing and homogenizing component and the operation of the stirring paddle, forms an efficient mixing, causing the solid particles originally tightly packed at the bottom to be dispersed. With the movement and vibration of the chassis, the solid particles will redistribute in the liquid, further enhancing the mixing effect of solids and liquids in the production of hexafluorophosphate and effectively solving the problem of incomplete reaction caused by the deposition of solid materials at the bottom.

[0025] The vibration of the chassis can generate tiny fluctuations throughout the reaction kettle, which will be transmitted to the solution, prompting better mixing of each component in the solution at the microscopic level. This method can make materials with different densities and phases more evenly distributed in the reaction kettle, providing a more uniform environment for the solution mixing reaction in the production of hexafluorophosphate.

[0026] Through the combined operation of the mixing and homogenizing component and the shaking and homogenizing component, it is ensured that the solution and materials in the entire reaction kettle can be effectively stirred and mixed, which reduces the energy consumed in the ineffective area, improves the utilization efficiency of the stirring energy, and helps to realize the production of hexafluorophosphate.

[0027] At the same time, through the periodic lifting and vibration of the chassis and the full mixing of the solution, the contact area and contact frequency between the solution, materials and the side wall of the reaction kettle and the heating coil are increased, which is conducive to the rapid transfer of heat and improves the heat exchange efficiency. Compared with the traditional mixing method, when achieving the same temperature control effect, the new mixing method can reduce the time and energy required for heat exchange and helps to realize the production of hexafluorophosphate. Description of the Drawings

[0028] Figure 1Schematic three-dimensional diagram of the overall device of the present invention;

[0029] Figure 2 Schematic cross-sectional view in the transverse direction of the upper hollow shaft, lower hollow shaft, stirring paddle and other structures of the present invention;

[0030] Figure 3 For the present invention Figure 2 Enlarged view at position A in;

[0031] Figure 4 For the present invention Figure 2 Enlarged view at position B in;

[0032] Figure 5 Schematic cross-sectional view in the vertical direction of the upper hollow shaft, lower hollow shaft, reciprocating lead screw and other structures of the present invention;

[0033] Figure 6 For the present invention Figure 5 Enlarged view at position C in;

[0034] Figure 7 For the present invention Figure 6 Enlarged view at position D in;

[0035] Figure 8 Schematic diagram of the positions of the chassis, connecting rod, top plate and other structures of the present invention;

[0036] Figure 9 For the present invention Figure 8 Enlarged view at position E in;

[0037] Figure 10 For the present invention Figure 8 Enlarged view at position F in.

[0038] In the figure:

[0039] 11. Reaction kettle; 12. Kettle cover; 13. Stirring motor;

[0040] 21. Upper hollow shaft; 22. Lower hollow shaft; 23. Pump housing; 24. Micro motor; 25. Shaft rod; 26. Side plate one; 27. Pump impeller; 28. Side plate two; 29. Water inlet pipe; 210. Filter hole plate; 211. Side bevel gear; 212. Support plate; 213. Bottom bevel gear; 214. Reciprocating lead screw; 215. Connecting block; 216. Slide plate; 217. Bellows; 218. Stirring paddle; 219. Bottom pipe; 220. Check valve.

[0041] 31. Spring; 32. Chassis; 33. Connecting rod; 34. Top plate. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] In the following content, a in the attached drawing is a charging port for connecting the pipeline of a charging machine, and b is a gas interface for connecting a nitrogen purging machine to inject nitrogen into the reaction kettle 11.

[0044] Embodiments provided by the present invention:

[0045] Embodiment 1

[0046] Please refer to Figures 1 to 10 As shown, a production device for hexafluorophosphate includes a reaction kettle 11 and a kettle cover 12. The kettle cover 12 is fixedly installed on the upper part of the reaction kettle 11 through bolts, and a stirring motor 13 is installed on the top of the kettle cover 12.

[0047] Among them: the output shaft of the stirring motor 13 faces the bottom of the kettle cover 12. Specifically: the output shaft of the stirring motor 13 passes through the kettle cover 12.

[0048] Among them: during use, first connect the nitrogen purging machine to the gas interface to perform nitrogen replacement purging on the reaction kettle 11, and then the user connects the pipeline of the charging machine to the charging port to add materials into the reaction kettle 11.

[0049] Among them: in the prior art, the reaction kettle 11 is provided with heating coils (not shown in the figure), and the heating coils are used to control the reaction temperature inside the reaction kettle 11 during the production process of hexafluorophosphate.

[0050] A mixing component is provided at the bottom of the kettle lid 12. The mixing component includes an upper hollow shaft 21, and the upper hollow shaft 21 is fixedly connected to the output shaft of the stirring motor 13. The outer wall of the bottom of the upper hollow shaft 21 is sleeved with a lower hollow shaft 22. The inner wall bottom end of the upper hollow shaft 21 is fixedly connected with a pump housing 23. The inner wall bottom end of the upper hollow shaft 21 is fixedly connected with a micro motor 24. The output shaft of the micro motor 24 faces the pump housing 23. A shaft rod 25 is fixedly connected to the output shaft of the micro motor 24. The shaft rod 25 passes through the pump housing 23. One end of the shaft rod 25 away from the micro motor 24 is fixedly connected with a first side plate 26. A plurality of pump blades 27 are fixedly connected to the side of the first side plate 26 away from the shaft rod 25 in an annular array. A second side plate 28 is fixedly connected to the side of the plurality of pump blades 27 away from the first side plate 26. A water inlet pipe 29 is fixedly communicated with the outer wall of the pump housing 23 away from the micro motor 24. One end of the water inlet pipe 29 away from the pump housing 23 extends to the middle of the upper hollow shaft 21 and penetrates the upper hollow shaft 21. One end of the water inlet pipe 29 penetrating the upper hollow shaft 21 extends downward. The bottom end of the one end of the water inlet pipe 29 penetrating the upper hollow shaft 21 bends horizontally and is arc-shaped. A filter hole plate 210 is fixedly connected to the inner wall of the one end of the water inlet pipe 29 away from the pump housing 23. A side bevel gear 211 is fixedly connected to the shaft rod 25. A support plate 212 is fixedly connected to the outer wall of the pump housing 23 near the side bevel gear 211. The support plate 212 is located at the bottom of the side bevel gear 211. A bottom bevel gear 213 is rotatably connected to the support plate 212. A reciprocating lead screw 214 is fixedly connected to the bottom end of the bottom bevel gear 213. A connecting block 215 is fixedly connected to the inner wall of the lower hollow shaft 22. The connecting block 215 is sleeved on the reciprocating lead screw 214. A sliding plate 216 is rotatably connected to the inner surface of the connecting block 215. A corrugated pipe 217 is fixedly communicated with the bottom of the pump housing 23. Two stirring paddles 218 are symmetrically and fixedly connected to the outer wall of the bottom end of the lower hollow shaft 22. The bottom ends of the corrugated pipe 217 are symmetrically and fixedly communicated with two bottom pipes 219. A hole adapted to be communicated with the corresponding bottom pipe 219 is opened in each of the two stirring paddles 218. A one-way valve 220 is installed on the side of the hole in each of the two stirring paddles 218 away from the lower hollow shaft 22.

[0051] Among them: As shown in reference to Figure 3 , Figure 6 and Figure 9 shown, the first side plate 26 and the second side plate 28 are circular with the same size. The difference is that a round hole is provided at the center position of the second side plate 28, and the position of the round hole of the second side plate 28 corresponds to the position where the water inlet pipe 29 is communicated with the pump housing 23.

[0052] Among them: When the reaction kettle 11 produces hexafluorophosphate, it has the characteristic of quantitative production. Specifically: The liquid level height inside the reaction kettle 11 is the same in each production. The bottom arc section of the water inlet pipe 29 passing through the upper hollow shaft 21 is slightly lower than the liquid level inside the reaction kettle 11. That is, when the upper hollow shaft 21 drives the water inlet pipe 29 to rotate, the bottom arc pipe of the water inlet pipe 29 can rotate synchronously with the upper hollow shaft 21 below the liquid level inside the reaction kettle 11, and then the solution inside the reaction kettle 11 can enter the inside of the water inlet pipe 29.

[0053] It should be noted that: When the solution inside the reaction kettle 11 enters the inside of the water inlet pipe 29, the filter hole plate 210 plays a filtering role, which can prevent the undissolved solid materials inside the reaction kettle 11 from entering the inside of the water inlet pipe 29.

[0054] Among them: The combination operation of the pump housing 23, the micro motor 24, the shaft rod 25, the first side plate 26, the pump impeller 27, the second side plate 28, the water inlet pipe 29, and the corrugated pipe 217 forms the function of a centrifugal pump in the prior art. Specifically: When the micro motor 24 is started, the output shaft of the micro motor 24 drives the shaft rod 25 to rotate synchronously, and the shaft rod 25 drives the first side plate 26, the pump impeller 27, and the second side plate 28 to rotate synchronously. A negative pressure environment is formed in the central area of the mutually close ends of the multiple pump impellers 27. Combining the above text, that is, the solution entering the inside of the water inlet pipe 29 will be sucked into the inside of the pump housing 23 and discharged into the inside of the corrugated pipe 217 by the rotating pump impeller 27. The above content is hereinafter referred to as the operation of the centrifugal function.

[0055] Among them: The side bevel gear 211 meshes with the bottom bevel gear 213, and the slide plate 216 slides in the thread groove on the reciprocating lead screw 214. Specifically: The connecting block 215 plays a role in preventing the slide plate 216 from disengaging from the reciprocating lead screw 214, and the connecting block 215 also plays a role in enabling the upper hollow shaft 21 to drive the lower hollow shaft 22 to rotate synchronously.

[0056] Among them: The one-way valve 220 is set to open only in one direction towards the end of the stirring paddle 218 away from the lower hollow shaft 22, ensuring that only the solution can be discharged into the reaction kettle 11 inside the stirring paddle 218 and preventing the solution inside the reaction kettle 11 from entering the inside of the stirring paddle 218 in the reverse direction.

[0057] When the mixing component is in use, the user adds the complete materials into the reaction kettle 11, making the inside of the reaction kettle 11 in a solid-liquid mixed state. At this time, the user starts the stirring motor 13 and the micro motor 24 through an external controller. When the stirring motor 13 is started, it can make the upper hollow shaft 21 drive the lower hollow shaft 22 to rotate synchronously. That is, the lower hollow shaft 22 drives the two stirring paddles 218 to rotate in the solution, making the solution inside the reaction kettle 11 be stirred and mixed. At the same time, the user starts the heating coil, and the heat conduction of the heating coil acts on the inner wall of the reaction kettle 11, making the solution inside the reaction kettle 11 at a suitable reaction temperature;

[0058] When the micro-motor 24 is started, as known from the above, the centrifugal function operates at this time, causing the solution flowing into the interior of the water inlet pipe 29 to flow into the interior of the corrugated pipe 217. The solution in the corrugated pipe 217 synchronously flows through the bottom pipe 219 into the interior of the stirring paddle 218, and is discharged into the reaction kettle 11 through the one-way valve 220.

[0059] When the micro-motor 24 is started to drive the shaft rod 25 to rotate, the shaft rod 25 drives the side bevel gear 211 to rotate synchronously. The side bevel gear 211 meshes with and drives the bottom bevel gear 213 to rotate synchronously. Furthermore, when the bottom bevel gear 213 rotates, it drives the reciprocating lead screw 214 to rotate synchronously. The slide plate 216 slides within the thread of the reciprocating lead screw 214. Based on the characteristics of the thread groove of the reciprocating lead screw 214, specifically two internally connected but oppositely directed thread grooves, when the connecting block 215 slides on the slide plate 216, the connecting block 215 can only perform vertical reciprocating motion along the reciprocating lead screw 214. Specifically: the connecting block 215 drives the lower hollow shaft 22 to move up and down reciprocally.

[0060] In summary, at this time, the stirring paddle 218 is driven to rotate by the lower hollow shaft 22, and at the same time, it performs up and down reciprocating motion inside the reaction kettle 11, and is in the process of discharging the solution extracted from the interior of the reaction kettle 11 at the tail end. Specifically: the solution discharged by the one-way valve 220 rotates and discharges up and down within the solution inside the reaction kettle 11. This method can force the upper-layer solution to enter the middle and lower layers, effectively breaking the solution stratification during the production of hexafluorophosphate, thereby ensuring the uniform distribution of each component in the reaction system, avoiding excessive local reactant concentration differences from affecting the reaction efficiency, and enabling the materials inside the entire reaction kettle 11 to be more fully mixed in the vertical direction.

[0061] At the same time, by the fact that the stirring paddle 218 is in a state of rotating and reciprocating up and down, it can stir the solution in the reaction kettle 11 in three-dimensional space. Compared with the existing stirring method that only rotates, this movement method can cover more spatial areas. The reciprocating paddle blades can penetrate into the bottom area, turning the bottom solution upwards, and at the same time, the rotating action can also disperse the particles in the horizontal direction, thereby realizing the all-round mixing of the hexafluorophosphate production solution and effectively avoiding material stratification and agglomeration.

[0062] Example 2: Inside the reaction kettle 11, the materials in the area near the bottom edge of the reaction kettle 11 may not be fully stirred. The solid particles will gradually settle to the bottom of the inner wall of the reaction kettle 11 due to gravity, resulting in solid deposition, and the deposited solid materials are not easily turned up to the top by the operation of the mixing component.

[0063] Refer to Figure 2 、 Figure 5 and Figure 8As shown in the figure, to solve the above-mentioned problems, a mixing component is further provided inside the reaction kettle 11. The mixing component includes a plurality of springs 31. The plurality of springs 31 are fixedly connected to the bottom of the inner wall of the reaction kettle 11. The tops of the plurality of springs 31 are fixedly connected to a chassis 32 together. The chassis 32 is in close fit with the inner side wall of the reaction kettle 11. The top of the chassis 32 is fixedly connected to a plurality of connecting rods 33. The tops of the plurality of connecting rods 33 are fixedly connected to a top plate 34 on one side facing the lower hollow shaft 22 respectively.

[0064] Among them: in the initial state, that is, when the stirring paddle 218 does not touch the top plate 34 and the spring 31 does not generate elastic deformation, the top plate 34 is located on the rising trajectory of the stirring paddle 218. That is, during the process of the stirring paddle 218 rotating around the lower hollow shaft 22 and moving up and down reciprocally, the top plate 34 will be lifted upward.

[0065] Specifically: since the top plate 34 is located on the rising trajectory of the stirring paddle 218, the top plate 34 will not touch the moving stirring paddle 218 when it falls.

[0066] Among them: both sides of the top plate 34 are set to be arc-shaped, and the function is to facilitate the contact with the stirring paddle 218 when it rotates.

[0067] Among them: there is a gap between the tail end of the stirring paddle 218, that is, the end close to the one-way valve 220 and the inner side wall of the reaction kettle 11, and the function is to prevent the stirring paddle 218 from moving up and down smoothly.

[0068] When the mixing component is in use and during the operation of the mixing component, specifically: during the process of the stirring paddle 218 rotating around the lower hollow shaft 22 and moving up and down reciprocally, the stirring paddle 218 will periodically touch and lift the top plate 34, so that the top plate 34 drives the chassis 32 to lift the height through the connecting rod 33. At this time, the plurality of springs 31 will be elastically stretched. When the stirring paddle 218 rotates to no longer touch the top plate 34, at this time, under the action of the elastic contraction of the plurality of springs 31, the chassis 32 will be pulled back to its original position.

[0069] During the process of the chassis 32 being lifted, the solid materials deposited on the chassis 32 will be lifted by the chassis 32. When the chassis 32 descends and returns to its original position, the plurality of springs 31 will generate unstable up and down vibrations, that is, the elastic restoring force of the springs 31 themselves will cause the chassis 32 to vibrate, so that the solid materials deposited on the top of the chassis 32 will be resuspended. This dynamic bottom interference, combined with the up and down flow mixing of the heavy solution in the mixing component and the operation of the stirring paddle 218, forms an efficient mixing, so that the solid particles originally tightly packed at the bottom will be scattered. With the movement and vibration of the chassis 32, the solid particles will be redistributed in the liquid, further enhancing the mixing effect of solids and liquids in the production of hexafluorophosphate, and effectively solving the problem that the reaction is incomplete due to the deposition of solid materials at the bottom.

[0070] At the same time, the vibration of the chassis 32 can generate tiny fluctuations in the entire reactor 11, and this fluctuation will be transmitted to the solution, prompting the various components in the solution to be better mixed at the microscopic level. This method can make materials of different densities and different phases more evenly distributed in the reactor 11, providing a more uniform environment for the solution mixing reaction in the production of hexafluorophosphate.

[0071] Through the combined operation of the mixing component and the shaking component, in the previous stirring process, there may be ineffective stirring areas due to uneven stirring, that is, the materials in some areas cannot be fully stirred, while the stirring equipment continues to consume energy. The combined operation of the mixing component and the shaking component ensures that the solution and materials in the entire reactor 11 can be effectively stirred and mixed, which reduces the energy consumed in the ineffective area, improves the utilization efficiency of the stirring energy, and helps to achieve the production of hexafluorophosphate.

[0072] At the same time, the contact area and frequency between the solution, the material and the side wall of the reactor 11 and the heating coil are increased by periodically lifting and vibrating the chassis 32 and fully mixing the solution, which is beneficial to the rapid transfer of heat and improves the heat exchange efficiency. Compared with the traditional mixing method, the new mixing method can reduce the time and energy required for heat exchange while achieving the same temperature control effect, which is helpful to achieve the production of hexafluorophosphate.

[0073] Embodiment 3: A method for producing hexafluorophosphate, comprising the following steps:

[0074] Step 1: Prepare the materials required for production, connect the nitrogen purge machine to the gas interface on the reactor 11, perform nitrogen replacement and purge in the reactor 11, and then connect the injection machine pipeline to the injection port on the reactor 11 to place the materials inside the reactor 11.

[0075] Step 2: Start the stirring motor 13 and the micro motor 24 through the external controller, and then the output shafts of the stirring motor 13 and the micro motor 24 begin to rotate.

[0076] Step 3: The output shaft of the stirring motor 13 rotates to drive the upper hollow shaft 21 and the lower hollow shaft 22 as well as the two stirring paddles 218 to rotate and stir the solution. The output shaft of the micro motor 24 rotates to allow the upper layer of the solution inside the reactor 11 to enter the stirring paddles 218 .

[0077] Step 4: While the output shaft of the micro-motor 24 rotates, through structures such as the reciprocating lead screw 214, connecting block 215, and sliding plate 216, the lower hollow shaft 22 reciprocates up and down on the upper hollow shaft 21, that is, the lower hollow shaft 22 drives the stirring paddle 218 to reciprocate up and down. Specifically, the stirring paddle 218 rotates and reciprocates up and down following the lower hollow shaft 22, discharging the upper-layer solution inside the reaction kettle 11 into the middle and lower-layer solutions, and mixing the solutions inside the reaction kettle 11 evenly through the self-movement of the stirring paddle 218.

[0078] Step 5: While the stirring paddle 218 rotates and reciprocates up and down, periodically the solid materials on the top of the chassis 32 are broken up, and at the same time, the vibration is transmitted to the solution inside the reaction kettle 11.

[0079] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0080] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production device for hexafluorophosphate, comprising a reaction kettle and a kettle cover. The kettle cover is fixedly installed on the upper part of the reaction kettle through bolts, and a stirring motor is installed on the top of the kettle cover. It is characterized in that: A mixing component is provided at the bottom of the kettle lid. The mixing component includes an upper hollow shaft, which is fixedly connected to the output shaft of the stirring motor. The bottom outer wall of the upper hollow shaft is sleeved with a lower hollow shaft. The inner wall bottom end of the upper hollow shaft is fixedly connected with a pump housing. The inner wall bottom end of the upper hollow shaft is fixedly connected with a micro motor. A shaft rod is fixedly connected to the output shaft of the micro motor. One end of the shaft rod away from the micro motor is fixedly connected with a side plate one. A plurality of pump impellers are fixedly connected in a circular array on the side of the side plate one away from the shaft rod. A side plate two is fixedly connected to the side of the plurality of pump impellers away from the side plate one. The outer wall of the pump housing away from the micro motor is fixedly communicated with a water inlet pipe. A filter hole plate is fixedly connected to the inner wall of the end of the water inlet pipe away from the pump housing. A side bevel gear is fixedly connected to the shaft rod. A support plate is fixedly connected to the outer wall of the pump housing near the side bevel gear. A bottom bevel gear is rotatably connected to the support plate. A reciprocating lead screw is fixedly connected to the bottom end of the bottom bevel gear. A connecting block is fixedly connected to the inner wall of the lower hollow shaft. A sliding plate is rotatably connected to the inner surface of the connecting block. A bellows is fixedly communicated with the bottom of the pump housing. Two stirring paddles are symmetrically and fixedly connected to the bottom outer wall of the lower hollow shaft. The bottom ends of the bellows are symmetrically and fixedly communicated with two bottom pipes. A check valve is installed on each side of the inner hole of the two stirring paddles away from the lower hollow shaft; the output shaft of the micro motor faces the pump housing, and the shaft rod passes through the pump housing; the two stirring paddles are internally connected to the corresponding bottom pipes; the side bevel gear and the bottom bevel gear are meshed with each other, and the sliding plate slides in the thread groove on the reciprocating lead screw.

2. The production device of a hexafluorophosphate according to claim 1, characterized in that: A shaking and mixing component is arranged inside the reaction kettle. The shaking and mixing component includes a plurality of springs. The plurality of springs are fixedly connected to the bottom of the inner wall of the reaction kettle. The top ends of the plurality of springs are fixedly connected to a chassis together. The chassis is in close fit with the inner side wall of the reaction kettle. A plurality of connecting rods are fixedly connected to the top of the chassis. One end of the plurality of connecting rods away from the top is fixedly connected with a top plate on the side facing the lower hollow shaft.

3. The production device of a hexafluorophosphate according to claim 1, characterized in that: The output shaft of the stirring motor faces the bottom of the kettle lid, and the output shaft of the stirring motor passes through the kettle lid.

4. The production device of a hexafluorophosphate according to claim 1, characterized in that: One end of the water inlet pipe away from the pump housing extends to the middle of the upper hollow shaft and passes through the upper hollow shaft. The end of the water inlet pipe passing through the upper hollow shaft extends downward. The bottom end of the end of the water inlet pipe passing through the upper hollow shaft bends horizontally and is arc-shaped.

5. The production device of a hexafluorophosphate according to claim 1, characterized in that: The support plate is located at the bottom of the side bevel gear, and the connecting block is sleeved on the reciprocating lead screw.

6. The production device of a hexafluorophosphate according to claim 1, characterized in that: The side plate one and the side plate two are circular with the same size. The center position of the side plate two is hollow. The hollow position of the side plate two corresponds to the position where the water inlet pipe is communicated with the pump housing. The pump impeller presents a twisted shape along the length direction, and the bending direction of the pump impeller is the same as the rotation direction of the output shaft of the micro motor.

7. The production device of a hexafluorophosphate according to claim 1, characterized in that: The check valve is set to open only in one direction towards the end of the stirring paddle away from the lower hollow shaft.

8. The production device of a hexafluorophosphate according to claim 2, characterized in that: The top plate is located on the rising track of the stirring paddle, and the two sides of the top plate are arc-shaped.

9. A production method of hexafluorophosphate, characterized in that, Apply a production device for hexafluorophosphate according to any one of claims 2 or 8. The production method of the hexafluorophosphate includes the following steps: Step 1: Prepare the materials required for production. Connect the nitrogen purging machine to the gas interface on the reaction kettle, conduct nitrogen replacement and purging inside the reaction kettle, then connect the injection machine pipeline to the injection port on the reaction kettle, and place the materials inside the reaction kettle. Step 2: Start the stirring motor and the micro motor through an external controller. At this time, the output shafts of the stirring motor and the micro motor start to rotate; Step 3: The rotation of the output shaft of the stirring motor drives the upper hollow shaft, the lower hollow shaft and the two stirring paddles to rotate and stir the solution. The rotation of the output shaft of the micro motor causes the upper layer solution inside the reaction kettle to enter the inside of the stirring paddle; Step 4: While the output shaft of the micro motor is rotating, through the side bevel gear, the bottom bevel gear, the reciprocating lead screw, the connecting block and the sliding plate, the lower hollow shaft makes a reciprocating up and down movement on the upper hollow shaft, that is, the lower hollow shaft drives the stirring paddle to make a reciprocating up and down movement. Specifically, the stirring paddle rotates with the lower hollow shaft and makes a reciprocating up and down movement, discharging the upper layer solution inside the reaction kettle into the middle and lower layer solutions, and mixing the solution inside the reaction kettle evenly through the self - movement of the stirring paddle; Step 5: While the stirring paddle is rotating and making a reciprocating up and down movement, periodically break up the solid materials on the top of the chassis, and at the same time, the vibration is transmitted to the solution inside the reaction kettle.

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