Production device and production method of hexafluorophosphate

Abstract

The invention discloses a hexafluorophosphate production device and method, and relates to the technical field of hexafluorophosphate production.The hexafluorophosphate production device comprises a reaction kettle and a kettle cover, the kettle cover is clamped to the top of the outer wall of the reaction kettle, a stirring motor is installed at the top of the kettle cover, a uniform mixing assembly is arranged at the bottom of the kettle cover, and the uniform mixing assembly comprises an upper hollow shaft; the upper hollow shaft is fixedly connected to an output shaft of the stirring motor, the outer wall of the bottom 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 shell; the solution discharged through the one-way valve is rotationally discharged in the solution in the reaction kettle and is discharged in an up-and-down fluctuating manner, so that the upper-layer solution can forcibly enter the middle-lower-layer area, and the solution layering in the hexafluorophosphate production process can be effectively broken, thereby ensuring the uniform distribution of each component in the reaction system and improving the yield of the hexafluorophosphate. The influence on the reaction efficiency due to overlarge concentration difference of local reactants is avoided, so that the materials in the whole reaction kettle are more sufficiently mixed 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 contact fully.

[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 it is easy 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, increasing 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 far from the stirring paddle, especially those near the bottom and the wall of the kettle, they are still in a layered 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 first side plate. A plurality of pump impellers are fixedly connected in a circular array on the side of the first side plate away from the shaft rod. A second side plate is fixedly connected to the side of the plurality of pump impellers away from the first side plate. 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 corrugated pipe 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 corrugated pipe. 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] Furthermore, 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. The top ends of the plurality of springs are jointly fixedly connected with a chassis. 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] Furthermore, 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] Furthermore, the output shaft of the micro motor faces the pump housing, and the shaft rod passes through the pump housing.

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

[0011] Furthermore, 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 mesh with each other. The slide plate slides in the thread groove of the reciprocating lead screw, and 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: 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.

[0016] 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.

[0017] 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.

[0018] 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 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 and makes a reciprocating up and down movement following the lower hollow shaft, discharges the upper layer solution inside the reaction kettle into the middle and lower layer solutions, and evenly mixes the solutions inside the reaction kettle through the self-movement of the stirring paddle.

[0019] 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 transfer the vibration to the solution inside the reaction kettle.

[0020] Compared with the prior art, the beneficial effects of the present invention are: The solution discharged through the one-way valve rotates and discharges up and down in the solution inside the reaction kettle. This method can force the upper layer solution to enter the middle and lower layer areas, effectively break the solution stratification in the production process of hexafluorophosphate, thereby ensuring the uniform distribution of each component in the reaction system, avoiding too large a difference in the concentration of local reactants affecting the reaction efficiency, and enabling the materials inside the entire reaction kettle to be more fully mixed in the vertical direction; The stirring paddle is in a state of rotating and reciprocating up and down motion, so that the solution in the reactor can be stirred. Compared with the existing stirring method of only rotating, this motion method can cover more spatial areas. The paddles that reciprocate up and down can penetrate into the bottom area and turn the solution at the bottom upwards. At the same time, the rotating action can disperse the particles in the horizontal direction, thereby achieving all-round mixing of the hexafluorophosphate production solution and effectively avoiding material stratification and agglomeration. The elastic restoring force of the spring itself will cause the chassis to vibrate, so that the solid materials deposited on the top of the chassis are re-suspended. This dynamic bottom disturbance is combined with the up and down flow mixing of the heavy solution in the mixing component and the operation of the stirring paddle to form an efficient mixing, so that the solid particles originally tightly accumulated at the bottom will be dispersed. With the movement and vibration of the chassis, 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 of incomplete reaction caused by the deposition of solid materials at the bottom. The vibration of the chassis can generate tiny fluctuations in the entire reactor, which will be transmitted to the solution, prompting the various components in the solution to mix better at the microscopic level. This method can make materials of different densities and different phases more evenly distributed in the reactor, providing a more uniform environment for the solution mixing reaction in the production of hexafluorophosphate; The combined operation of the mixing component and the shaking component ensures that the solution and materials in the entire reactor 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.

[0021] At the same time, through the periodic lifting and vibration of the chassis and the thorough mixing of the solution, the contact area and frequency between the solution, the material and the side wall of the reactor 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, which is helpful to realize the production of hexafluorophosphate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the overall device of the present invention; Figure 2 It is a transverse cross-sectional schematic diagram of the upper hollow shaft, the lower hollow shaft, the stirring paddle and other structures of the present invention; Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in the middle; Figure 4 For the present invention Figure 2 The enlarged schematic diagram of point B in the middle; Figure 5Vertical sectional view of the structures such as the upper hollow shaft, lower hollow shaft, reciprocating lead screw, etc. of the present invention; Figure 6 For the present invention Figure 5 Enlarged view at location C in the present invention; Figure 7 For the present invention Figure 6 Enlarged view at location D in the present invention; Figure 8 Schematic diagram of the positions of the structures such as the chassis, connecting rod, top plate, etc. of the present invention; Figure 9 For the present invention Figure 8 Enlarged view at location E in the present invention; Figure 10 For the present invention Figure 8 Enlarged view at location F in the present invention.

[0023] In the figure: 11, reaction kettle; 12, kettle cover; 13, stirring motor; 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.

[0024] 31, spring; 32, chassis; 33, connecting rod; 34, top plate. Detailed implementation manners

[0025] 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 belong to the scope of protection of the present invention.

[0026] In the following content of the drawings, a is a feeding port for connecting the pipeline of the feeding machine, and b is a gas interface for connecting the nitrogen purging machine to inject nitrogen into the reaction kettle 11.

[0027] The embodiments provided by the present invention: Embodiment 1

[0028] 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.

[0029] 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.

[0030] 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 feeding machine pipeline to the feeding port to add materials into the reaction kettle 11.

[0031] 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.

[0032] A mixing component is provided at the bottom of the kettle cover 12. The mixing component includes an upper hollow shaft 21. 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 far from the micro motor 24 is fixedly connected with a first side plate 26. A plurality of pump impellers 27 are fixedly connected to the side of the first side plate 26 far 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 impellers 27 far from the first side plate 26. The outer wall of the side of the pump housing 23 far from the micro motor 24 is fixedly communicated with a water inlet pipe 29. One end of the water inlet pipe 29 far from the pump housing 23 extends to the middle of the upper hollow shaft 21 and passes through the upper hollow shaft 21. One end of the water inlet pipe 29 passing through the upper hollow shaft 21 extends downward. The bottom end of the one end of the water inlet pipe 29 passing through 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 far 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 side of the pump housing 23 close to 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 bellows 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 end of the bellows 217 is symmetrically and fixedly communicated with two bottom pipes 219. Each of the two stirring paddles 218 is provided with a hole adapted to and communicated with the corresponding bottom pipe 219 on the side far from the lower hollow shaft 22. A one-way valve 220 is installed on the side of each hole in the two stirring paddles 218 far from the lower hollow shaft 22.

[0033] Among them: referring to Figure 3 、Figure 6 and Figure 9 As shown in Figure 9 , side plate one 26 and side plate two 28 are circular with the same size. The difference is that a round hole is provided at the center position of side plate two 28, and the position of the round hole on side plate two 28 corresponds to the position where the water inlet pipe 29 communicates with the pump housing 23.

[0034] Among them: When the reactor 11 produces hexafluorophosphate, it has the characteristic of quantitative production. Specifically: the liquid level height inside the reactor 11 is equal each time during production. The bottom arc section of the water inlet pipe 29 passing through the bottom of the upper hollow shaft 21 is slightly lower than the liquid level inside the reactor 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 reactor 11, and then the solution inside the reactor 11 can enter the inside of the water inlet pipe 29.

[0035] It should be noted that: when the solution inside the reactor 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 reactor 11 from entering the inside of the water inlet pipe 29.

[0036] Among them: The combination operation of the pump housing 23, the micro motor 24, the shaft rod 25, the side plate one 26, the pump impeller 27, the side plate two 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 side plate one 26, the pump impeller 27, and the side plate two 28 to rotate synchronously. A negative pressure environment is formed in the central area of the mutually approaching 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.

[0037] Among them: The side bevel gear 211 and the bottom bevel gear 213 mesh with each other, 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.

[0038] 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 from the inside of the stirring paddle 218 into the reactor 11, and preventing the solution inside the reactor 11 from flowing back into the inside of the stirring paddle 218.

[0039] When the mixing component is in use, the user adds the complete materials into the reactor 11, making the inside of the reactor 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 starts, the upper hollow shaft 21 can 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, so that the solution inside the reactor 11 is 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 reactor 11, making the solution inside the reactor 11 at a suitable reaction temperature; At the same time when the micro motor 24 is started, as known from the above text, the centrifugal function operates at this time, making the solution flowing into the water inlet pipe 29 flow into the corrugated pipe 217. The solution in the corrugated pipe 217 flows to the inside of the stirring paddle 218 through the bottom pipe 219 synchronously, and is discharged into the reactor 11 through the one-way valve 220.

[0040] At the same time when the micro motor 24 starts 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. Then, when the bottom bevel gear 213 rotates, it drives the reciprocating lead screw 214 to rotate synchronously. The sliding plate 216 slides in the thread of the reciprocating lead screw 214. Based on the thread groove characteristics of the reciprocating lead screw 214, specifically two internally connected but oppositely directed thread grooves, when the connecting block 215 slides on the sliding 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.

[0041] In summary, at this time, the stirring paddle 218 is driven by the lower hollow shaft 22 to rotate, and at the same time, it performs up and down reciprocating motion inside the reactor 11, and is in the process of discharging the solution extracted from the inside of the reactor 11 at the tail end. Specifically: the solution discharged by the one-way valve 220 is in a state of rotating and discharging, and fluctuating up and down in the solution inside the reactor 11. This method can force the upper layer of the solution to enter the middle and lower layers, effectively breaking the solution stratification in the production process of hexafluorophosphate, thereby ensuring the uniform distribution of each component in the reaction system, avoiding too large a difference in the concentration of local reactants affecting the reaction efficiency, and making the materials inside the entire reactor 11 achieve more sufficient mixing in the vertical direction.

[0042] At the same time, by the stirring paddle 218 being in a state of rotating and reciprocating up and down, the solution inside the reactor 11 can be stirred in three-dimensional space. Compared with the existing stirring method of only rotating, this motion 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.

[0043] Embodiment 2: In the reactor 11, the material near the bottom edge of the reactor 11 may not be fully stirred, and the solid particles will gradually settle to the bottom of the inner wall of the reactor 11 due to gravity, resulting in solid deposition, and the deposited solid material is not easily stirred to the top by the operation of the mixing component.

[0044] Reference Figure 2 , Figure 5 as well as Figure 8 As shown, in order to solve the above-mentioned problems, a shaking assembly is further provided inside the reactor 11, and the shaking assembly includes a plurality of springs 31, and the plurality of springs 31 are fixedly connected to the bottom of the inner wall of the reactor 11, and the top ends of the plurality of springs 31 are commonly fixedly connected to a chassis 32, and the chassis 32 is tightly matched with the inner wall of the reactor 11, and the top of the chassis 32 is fixedly connected to a plurality of connecting rods 33, and the top ends of the plurality of connecting rods 33 are each fixedly connected to a top plate 34 on one side facing the lower hollow shaft 22.

[0045] Among them: in the initial state, that is, when the stirring paddle 218 does not contact the top plate 34 and the spring 31 does not produce elastic deformation, the top plate 34 is located on the rising trajectory of the stirring paddle 218, that is, the stirring paddle 218 will lift the top plate 34 upward during the process of rotating around the lower hollow shaft 22 and reciprocating up and down.

[0046] Specifically, since the top plate 34 is located on the ascending trajectory of the stirring paddle 218 , the top plate 34 will not collide with the moving stirring paddle 218 when falling.

[0047] The two sides of the top plate 34 are arranged in an arc shape so as to facilitate the interference with the stirring paddle 218 when the stirring paddle 218 rotates.

[0048] 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 wall of the reactor 11, which prevents the stirring paddle 218 from moving up and down smoothly.

[0049] When the shaking assembly is in use, the mixing assembly is in operation, specifically: as the stirring paddle 218 rotates around the lower hollow shaft 22 and reciprocates up and down, the stirring paddle 218 will periodically collide with and lift the top plate 34, so that the top plate 34 drives the bottom plate 32 to rise in height through the connecting rod 33. At this time, the multiple springs 31 will be elastically stretched. When the stirring paddle 218 rotates until it no longer conflicts with the top plate 34, the bottom plate 32 will be pulled back to its original position under the elastic contraction of the multiple springs 31.

[0050] During the lifting process of the chassis 32, the solid materials deposited on the chassis 32 will be lifted by the chassis 32, and when the chassis 32 is lowered and reset, the multiple springs 31 will produce unstable up and down shaking, that is, the elastic restoring force of the spring 31 itself will cause the chassis 32 to vibrate, so that the solid materials deposited on the top of the chassis 32 are re-suspended. This dynamic bottom interference is combined with the up and down flow mixing of the heavy solution in the mixing component and the operation of the stirring paddle 218 to form an efficient mixing, so that the solid particles originally tightly accumulated at the bottom will be broken up. With the movement and vibration of the chassis 32, the solid particles will be redistributed in the liquid, further enhancing the mixing effect of solid and liquid in the production of hexafluorophosphate, and effectively solving the problem of incomplete reaction caused by the deposition of solid materials at the bottom.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] Embodiment 3: A method for producing hexafluorophosphate, comprising the following steps: 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.

[0055] 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.

[0056] Step 3: The output shaft of the stirring motor 13 rotates to drive the upper hollow shaft 21, the lower hollow shaft 22 and the two stirring paddles 218 to rotate and stir the solution, and the output shaft of the micro-motor 24 rotates to cause the upper-layer solution inside the reaction kettle 11 to enter the inside of the stirring paddle 218.

[0057] Step 4: While the output shaft of the micro-motor 24 rotates, through structures such as the reciprocating lead screw 214, the connecting block 215, and the sliding plate 216, the lower hollow shaft 22 performs a reciprocating up-and-down operation on the upper hollow shaft 21, that is, the lower hollow shaft 22 drives the stirring paddle 218 to perform a reciprocating up-and-down movement. Specifically, the stirring paddle 218 rotates following the lower hollow shaft 22 and moves up and down reciprocally, 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.

[0058] Step 5: While the stirring paddle 218 rotates and moves up and down reciprocally, 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.

[0059] 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 including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0060] 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, and 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, and is characterized in that: A mixing component is provided 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 outer wall of the bottom 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 first side plate. A plurality of pump impellers are fixedly connected in an annular array on the side of the first side plate away from the shaft rod. A second side plate is fixedly connected to the side of the plurality of pump impellers away from the first side plate. The outer wall of the side 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 side of the pump housing close to 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. The bottom of the pump housing is fixedly communicated with a corrugated pipe. Two stirring paddles are symmetrically and fixedly connected to the outer wall of the bottom end of the lower hollow shaft. The bottom ends of the corrugated pipe are symmetrically and fixedly communicated with two bottom pipes. A one-way valve is installed on each side of the inner hole of the two stirring paddles away from the lower hollow shaft.

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 inner wall bottom 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 top of each of the plurality of connecting rods facing the side of the lower hollow shaft is fixedly connected with a top plate.

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 cover, and the output shaft of the stirring motor passes through the kettle cover.

4. The production device of a hexafluorophosphate according to claim 1, characterized in that: The output shaft of the micro motor faces the pump housing, and the shaft rod passes through the pump housing.

5. The production device of a hexafluorophosphate according to claim 1, characterized in that: 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.

6. 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. 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.

7. The production device of a hexafluorophosphate according to claim 1, characterized in that: 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. The hollow position of the second side plate corresponds to the position where the water inlet pipe is communicated with the pump housing. The pump impellers are twisted along the length direction, and the bending direction of the pump impellers is the same as the rotation direction of the output shaft of the micro motor.

8. The production device of a hexafluorophosphate according to claim 1, characterized in that: The side bevel gear and the bottom bevel gear mesh with each other. The sliding plate slides in the thread groove on 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.

9. 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.

10. A production method of hexafluorophosphate, characterized in that, Applying a production device for hexafluorophosphate as described in claims 1-9, 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 structures such as a reciprocating lead screw, a connecting block, and a 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 perform a reciprocating up and down movement. Specifically, the stirring paddle rotates and reciprocates up and down with the lower hollow shaft, discharges the upper layer solution inside the reaction kettle into the middle and lower layer solutions, and mixes the solution inside the reaction kettle evenly through the self - movement of the stirring paddle; Step 5: While the stirring paddle rotates and reciprocates up and down, 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.

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