An easy-to-clean lithium hexafluorophosphate purification device

Abstract

The invention discloses a lithium hexafluorophosphate purification device which is easy to clean, and relates to the technical field of chemical purification equipment. The device comprises a base, a vacuum processing device and an outer cylinder body installed in the middle of the top of the base, wherein an inner cylinder body is installed inside the outer cylinder body, and a mounting plate is installed on one side of the outer cylinder body. The device also comprises: a reciprocating motor fixedly installed on the upper part of one side of the mounting plate, wherein the output end of the reciprocating motor is fixedly connected with a main shaft, and the main shaft is fixedly connected to the outer cylinder body; a cleaning mechanism arranged inside the outer cylinder body; and a buffer mechanism arranged in the middle of the top of the base, wherein the buffer mechanism comprises an arc ring and an arc block, and solves the problem that part of lithium hexafluorophosphate crystals will adhere to the inner wall of the cylinder body, which is difficult to discharge and easy to deteriorate and produce by-products, thereby causing troubles for subsequent vacuum purification treatment of lithium hexafluorophosphate crystals and reducing the purification accuracy of lithium hexafluorophosphate crystals.

Description

Technical Field

[0001] The invention relates to the technical field of chemical purification equipment, in particular to a lithium hexafluorophosphate purification device which is easy to clean. Background Art

[0002] Lithium hexafluorophosphate has always been the main electrolyte lithium salt used in commercial lithium-ion batteries. Lithium hexafluorophosphate and hydrogen fluoride easily form a complex, resulting in a certain amount of hydrogen fluoride in the crude lithium hexafluorophosphate product. In addition, how to remove water and hydrogen fluoride from the crude lithium hexafluorophosphate product to make it meet the requirements of the lithium-ion battery industry is one of the most critical steps in the production of lithium hexafluorophosphate.

[0003] For example, a lithium hexafluorophosphate crystallization separation and purification device with announcement number CN205569804U includes a base and a cylinder, the surface of the base is provided with a cylinder through a bracket, the interior of the cylinder is provided with a roller, the centers of both ends of the roller are welded with rotating shafts, the rotating shafts are connected to the end surface centers of the cylinder through sealed bearings, and one of the rotating shafts passes through the side of the cylinder and is connected to a pulley, the surface of the base is fixedly connected to a motor, and the output shaft of the motor is also connected to the pulley. The lithium hexafluorophosphate crystallization separation and purification device drives the rotating shaft to rotate by the motor, so that the roller rolls in the cylinder, so that the crystals in the roller can be fully exposed to the vacuum atmosphere, and the inner wall of the roller is evenly covered with spoilers to disturb the crystals, so that the lithium hexafluorophosphate crystals are more fully exposed, which can effectively reduce the hexafluorophosphate. The hydrogen fluoride present in the lithium product has high purification efficiency and good purification effect. However, when the lithium hexafluorophosphate crystals roll in the cylinder, some of the lithium hexafluorophosphate crystals will adhere to the inner wall of the cylinder, which is difficult to discharge, causing trouble for the subsequent cleaning of the cylinder. The scraping effect of the existing scraping device is general, and the scraping part cannot completely scrape the cylindrical inner wall of the cylinder well. A small number of lithium hexafluorophosphate crystals may still be attached to the inner wall of the cylinder. Since lithium hexafluorophosphate is easily hydrolyzed and has poor thermal stability, these small number of attached lithium hexafluorophosphate crystals are easy to deteriorate and produce by-products, which in turn brings trouble to the subsequent vacuum purification of lithium hexafluorophosphate crystals, increases the cleaning complexity, and reduces the purification accuracy of lithium hexafluorophosphate crystals. There are certain defects. In addition, the cylinder of the device is set horizontally, which will also bring inconvenience to the subsequent discharge.

[0004] Therefore, we propose a lithium hexafluorophosphate purification device that is easy to clean in order to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a lithium hexafluorophosphate purification device which is easy to clean, so as to solve the problem that part of the lithium hexafluorophosphate crystals will adhere to the inner wall of the cylinder and are difficult to discharge. The scraping effect of the existing scraping device is relatively general, and a small part of the lithium hexafluorophosphate crystals may still adhere to the inner wall of the cylinder, which is easy to deteriorate and produce by-products, thereby causing trouble for the subsequent vacuum purification treatment of the lithium hexafluorophosphate crystals and reducing the purification accuracy of the lithium hexafluorophosphate crystals.

[0006] To achieve the above object, the present invention provides the following technical solution: a lithium hexafluorophosphate purification device that is easy to clean, comprising a base, a vacuum treatment device and an outer cylinder installed in the middle of the top of the base, an inner cylinder installed inside the outer cylinder, and a mounting plate installed on one side of the outer cylinder;

[0007] Also includes:

[0008] A reciprocating motor is fixedly mounted on an upper portion of one side of the mounting plate, wherein the output end of the reciprocating motor is fixedly connected to a main shaft, wherein the main shaft is fixedly connected to the outer cylinder, and wherein the main shaft is fixedly connected to the inner cylinder;

[0009] A fixed block is symmetrically fixed to one side of the top of the base, the inner side of the fixed block is rotatably connected to a connecting plate, and one end of the main shaft away from the reciprocating motor is rotatably connected to the connecting plate;

[0010] A cleaning mechanism is arranged inside the outer cylinder, the cleaning mechanism comprises a main pulley, a rotating shaft is rotatably connected to the middle of one side of the mounting plate, a secondary pulley is fixedly connected to the outer side of the rotating shaft, an eccentric wheel is fixedly connected to the end of the rotating shaft away from the mounting plate, a mounting seat is fixedly connected to the other side of the top of the base, a fixed base block is fixedly connected to one side of the top of the mounting seat, and the eccentric wheel abuts against the fixed base block;

[0011] The outer side of the inner cylinder is evenly provided with through holes, the outer side of the inner cylinder is fixedly connected with a connecting block, the connecting block is evenly arranged in a horizontally close relationship, a slide groove is provided inside the connecting block, an inclined rod is fixedly connected to one side of the slide groove, a slider is connected inside the slide groove, the slider is slidably connected to the inclined rod, a cleaning block is rotatably connected to the side of the slider away from the outer cylinder, a connecting strip is fixedly connected to one side of the slider, and a spring 2 is installed at the bottom of the connecting strip;

[0012] The buffer mechanism is arranged in the middle of the top of the base, and the buffer mechanism comprises an arc ring and an arc block.

[0013] Preferably, an air filling pipe is installed on the top of the vacuum processing device, the main pulley is fixedly connected to one end of the main shaft close to the reciprocating motor, the slave pulley is connected to the main pulley through a belt adapter, the rotating shaft is symmetrically arranged, the rotating shaft is located below the main shaft, and two rotating shafts are arranged.

[0014] By adopting the above technical solution, the cleaning block is pressed against the cylindrical inner wall of the outer cylinder, and then the cylindrical inner wall of the outer cylinder is scraped, which reduces the dead angle of scraping. The cleaning blocks arranged in multiple units have better scraping effect. A single reciprocating motor is used as a power source to reduce cost loss. The cleaning and scraping effect of the device is better overall, which is convenient for cleaning the inner wall of the outer cylinder.

[0015] Preferably, a hollow groove is provided inside the mounting seat, the mounting plate is located inside the hollow groove, the mounting plate is slidably connected to the hollow groove, springs 1 are symmetrically installed on both sides of the lower part of the mounting plate, and the side of the spring 1 away from the mounting plate is fixedly connected to the mounting seat.

[0016] By adopting the above technical solution, due to the cooperation between the eccentric wheels on both sides and the fixed base block, the mounting plate will intermittently tilt and swing, thereby driving the side of the outer cylinder close to the reciprocating motor to tilt upward with the fixed block as the axis, so as to better achieve the uniform spreading of lithium hexafluorophosphate crystals. Spring 1 is used to assist the tilting and swinging of the mounting plate to improve the stirring effect.

[0017] Preferably, a sealing layer is installed on the top of the connecting block, the slider is slidably connected to the sealing layer, a collar is installed inside the sealing layer, the collar fits the slider, and the slider is slidably connected to the collar.

[0018] By adopting the above technical solution, the sealing layer has a certain elasticity to meet the sealing requirements when the slider moves.

[0019] Preferably, there are no less than two arc rings, the bottom end of the arc ring is fixedly connected to the base, the inner side of the arc ring is provided with an auxiliary groove, the auxiliary grooves are evenly opened, the inside of the auxiliary groove is slidably connected with an arc block, and one side of the arc block is symmetrically rotatably connected with a connecting rod.

[0020] By adopting the above technical solution, when the outer cylinder rotates and tilts, the outer side of the outer cylinder will squeeze the arc block, and the arc block will slide toward the inside of the auxiliary groove. The arc block squeezes the connecting rods on both sides, and the connecting rods squeeze the sliding rods on both sides. The sliding rods will compress the spring three, and the spring three will play a buffering role.

[0021] Preferably, the end of the connecting rod away from the arc block is rotatably connected to a sliding rod, the sliding rod is slidably connected to the auxiliary groove, two sliding rods are symmetrically arranged, and the end of the sliding rod away from the connecting rod is fixedly connected to a spring three, and the spring three is fixedly installed inside the auxiliary groove.

[0022] By adopting the above technical solution, the symmetrically arranged spring three cooperates with the slide rod, thereby reducing the shaking and instability during the rotation of the outer cylinder.

[0023] Preferably, rotating parts are symmetrically installed on both sides of the inner cylinder, and the rotating parts are rotatably connected to the inner cylinder. A cleaning brush is fixedly connected to one end of the rotating parts, and the cleaning brush abuts against the outer cylinder.

[0024] By adopting the above technical solution, when the lithium hexafluorophosphate crystals inside the outer cylinder roll, part of the lithium hexafluorophosphate crystals will push the rotating part to rotate, and the rotating part drives the cleaning brush to rotate to clean the circular inner walls on both sides of the outer cylinder, which further improves the cleaning effect.

[0025] Preferably, the arc ring is located on the outside of the outer cylinder, the inner diameter of the arc ring is larger than the outer diameter of the outer cylinder, a feed pipe is installed on the top side of the outer cylinder, the feed pipe passes through the outer cylinder and is connected with the interior of the inner cylinder, and a discharge port is installed on the bottom side of the outer cylinder.

[0026] By adopting the above technical solution, the feed pipe is used for feeding operation, and the reciprocating motor is turned off after the processing is completed, and the purified lithium hexafluorophosphate crystals are discharged and collected through the discharge port.

[0027] Compared with the prior art, the invention has the following beneficial effects: a cleaning mechanism is provided, and the cleaning block is pressed against the inner wall of the cylinder of the outer cylinder, thereby scraping the inner wall of the cylinder of the outer cylinder, reducing the dead angle of scraping, and the cleaning blocks provided with multiple units have a better scraping effect, and a single reciprocating motor is used as a power source to reduce cost loss, and the cleaning and scraping effect of the device is better in integrity, which is convenient for cleaning the inner wall of the outer cylinder, and reduces the influence on the accuracy of subsequent lithium hexafluorophosphate crystallization purification;

[0028] 1. A cleaning mechanism is provided. Due to the cooperation between the eccentric wheels on both sides and the fixed base block, the mounting plate will intermittently tilt and swing, thereby driving the side of the outer cylinder close to the reciprocating motor to tilt upward with the fixed block as the axis, so as to better realize the uniform spreading of lithium hexafluorophosphate crystals. At the same time, the rubber block on the outside of the cleaning block is cooperated to make the cleaning block slide from one side of the connecting block to the other side to scrape the inner wall of the cylinder of the outer cylinder. At the same time, since the horizontal distance of the cleaning block movement is the length of the connecting block, multiple cleaning blocks can be closely arranged as needed, so that the inner wall of the cylinder of the outer cylinder can be scraped as a whole, reducing the dead angle of scraping. The sealing layer has a certain elasticity to meet the sealing requirements when the slider moves, and compared with the scraping of the overall long rod, the long rod will be affected by the hexafluoro The resistance of lithium phosphate crystals when rolling, the scraping effect is poor and easy to be damaged. Therefore, the cleaning blocks set by multiple units have better scraping effect. A single reciprocating motor is used as a power source to reduce cost loss. The cleaning scraping effect of the device is better overall, which is convenient for cleaning the inner wall of the outer cylinder, reducing the impact on the accuracy of subsequent lithium hexafluorophosphate crystal purification. It solves the problem that some lithium hexafluorophosphate crystals will adhere to the inner wall of the cylinder and are difficult to discharge. The scraping effect of the existing scraping device is relatively general, and a small number of lithium hexafluorophosphate crystals may still be attached to the inner wall of the cylinder, which is easy to deteriorate and produce by-products, thereby causing trouble for the subsequent vacuum purification of lithium hexafluorophosphate crystals and reducing the purification accuracy of lithium hexafluorophosphate crystals.

[0029] 2. A buffer mechanism is provided. When the outer cylinder rotates and tilts, the outer side of the outer cylinder will squeeze the arc block, and the arc block will slide toward the inside of the auxiliary groove. The arc block squeezes the connecting rods on both sides, and the connecting rods squeeze the sliding rods on both sides. The sliding rods compress the spring three. The elastic force of the spring three buffers the sliding rod, and then acts on the arc block through the connecting rod, thereby reducing the shaking and instability of the outer cylinder during rotation. A rotating part and a cleaning brush are provided. When the lithium hexafluorophosphate crystals inside the outer cylinder roll, part of the lithium hexafluorophosphate crystals will push the rotating part to rotate, and the rotating part drives the cleaning brush to rotate to clean the circular inner walls on both sides of the outer cylinder. The size of the cleaning brush can be set according to the actual situation, and is used to clean a small amount of lithium hexafluorophosphate crystals on the circular inner wall of the outer cylinder, which also further improves the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the internal structure of the outer cylinder of the present invention;

[0032] Figure 3 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0033] Figure 4 For the present invention Figure 1The enlarged structural diagram at B in the middle;

[0034] Figure 5 For the present invention Figure 2 The enlarged structural diagram at C in the middle;

[0035] Figure 6 It is a schematic diagram of the side structure of the connecting plate of the present invention;

[0036] Figure 7 For the present invention Figure 6 The enlarged structural diagram at D in the middle;

[0037] Figure 8 It is a schematic diagram of the side view structure of the eccentric wheel of the present invention;

[0038] Fig. 9 This is a schematic diagram of the outer cylinder in a tilted state of the present invention;

[0039] Fig.10 It is a schematic diagram of the overall structure of the present invention.

[0040] In the figure: 1. base; 2. outer cylinder; 3. inner cylinder; 4. mounting plate; 5. reciprocating motor; 6. main shaft; 7. vacuum treatment device; 8. gas filling pipe; 9. fixed block; 10. connecting plate; 11. main pulley; 12. rotating shaft; 13. slave pulley; 14. eccentric wheel; 15. mounting seat; 16. fixed base block; 17. empty groove; 18. spring one; 19. connecting block; 20. slide groove; 21. inclined rod; 22. slider; 23. sealing layer; 24. cleaning block; 25. connecting strip; 26. spring two; 27. arc ring; 28. auxiliary groove; 29. ​​arc block; 30. connecting rod; 31. slide rod; 32. spring three; 33. rotating part; 34. cleaning brush; 35. feed pipe; 36. discharge port. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-Figure 10 The present invention provides a technical solution: a lithium hexafluorophosphate purification device that is easy to clean, comprising a base 1, a vacuum treatment device 7, and an outer cylinder 2 installed in the middle of the top of the base 1, an inner cylinder 3 is installed inside the outer cylinder 2, and a mounting plate 4 is installed on one side of the outer cylinder 2;

[0043] The reciprocating motor 5 is fixedly mounted on the upper part of one side of the mounting plate 4. The output end of the reciprocating motor 5 is fixedly connected to the main shaft 6. The main shaft 6 is fixedly connected to the outer cylinder 2, and the main shaft 6 is fixedly connected to the inner cylinder 3.

[0044] The fixing block 9 is symmetrically fixed to one side of the top of the base 1. The inner side of the fixing block 9 is rotatably connected to a connecting plate 10. The end of the main shaft 6 away from the reciprocating motor 5 is rotatably connected to the connecting plate 10.

[0045] The cleaning mechanism is arranged inside the outer cylinder 2, and includes a main pulley 11, a rotating shaft 12 is rotatably connected to the middle of one side of the mounting plate 4, a secondary pulley 13 is fixedly connected to the outer side of the rotating shaft 12, an eccentric wheel 14 is fixedly connected to the end of the rotating shaft 12 away from the mounting plate 4, a mounting seat 15 is fixedly connected to the other side of the top of the base 1, a fixed base block 16 is fixedly connected to one side of the top of the mounting seat 15, and the eccentric wheel 14 abuts against the fixed base block 16;

[0046] A gas filling pipe 8 is installed on the top of the vacuum processing device 7, a main pulley 11 is fixedly connected to one end of the main shaft 6 close to the reciprocating motor 5, a secondary pulley 13 is connected to the main pulley 11 through a belt adapter, and the rotating shaft 12 is symmetrically arranged. The rotating shaft 12 is located below the main shaft 6, and two rotating shafts 12 are arranged.

[0047] An empty slot 17 is provided inside the mounting seat 15, and the mounting plate 4 is located inside the empty slot 17. The mounting plate 4 is slidably connected to the empty slot 17. Springs 18 are symmetrically installed on both sides of the lower part of the mounting plate 4. The side of the spring 18 away from the mounting plate 4 is fixedly connected to the mounting seat 15.

[0048] The outer side of the inner cylinder 3 is evenly provided with through holes, and the outer side of the inner cylinder 3 is fixedly connected with a connecting block 19, which is arranged evenly and tightly in the transverse direction, and the interior of the connecting block 19 is provided with a slide groove 20, and an inclined rod 21 is fixedly connected to the inner side of the slide groove 20, and a slider 22 is connected to the inner side of the slide groove 20, and the slider 22 is slidably connected to the inclined rod 21, and a cleaning block 24 is rotatably connected to the side of the slider 22 away from the outer cylinder 2, and a connecting strip 25 is fixedly connected to one side of the slider 22, and a spring 26 is installed at the bottom of the connecting strip 25.

[0049] A sealing layer 23 is installed on the top of the connecting block 19, and the slider 22 is slidably connected to the sealing layer 23. A sleeve ring is installed inside the sealing layer 23, and the sleeve ring fits the slider 22, and the slider 22 is slidably connected to the sleeve ring.

[0050] Embodiment 1: Figure 1-Figure 5 and Figure 8-Figure 9As shown, a cleaning mechanism is provided, lithium hexafluorophosphate crystals are input through the feed pipe 35, and the lithium hexafluorophosphate crystals fall into the inner cylinder 3. Inert gas is input through the vacuum treatment device 7 and the vacuum state inside the outer cylinder 2 is maintained. The specific structure and use method of the vacuum treatment device 7 can refer to the prior art and are not described. The reciprocating motor 5 is started to rotate slowly, the reciprocating motor 5 drives the main shaft 6 to rotate, and the main shaft 6 drives the outer cylinder 2 and the inner cylinder 3 to rotate, and the lithium hexafluorophosphate crystals fall into the outer cylinder 2 from the through hole on the inner cylinder 3, so that The lithium hexafluorophosphate crystals are evenly spread out and then fully contacted with the vacuum for purification. The main shaft 6 drives the slave pulley 13 to rotate through the main pulley 11, and the slave pulley 13 drives the rotating shaft 12 and the eccentric wheel 14 to rotate. Due to the cooperation between the eccentric wheels 14 on both sides and the fixed base block 16, the mounting plate 4 will intermittently tilt and swing, thereby driving the side of the outer cylinder 2 close to the reciprocating motor 5 to tilt upward with the fixed block 9 as the axis, so as to better achieve the uniform spreading of the lithium hexafluorophosphate crystals. The spring 18 is used to assist the tilting and swinging of the mounting plate 4.

[0051] At the same time, when the inner cylinder 3 rotates, the centrifugal force of the inner cylinder 3 will throw the slider 22 and the cleaning block 24 outward, and the slider 22 drives the connecting strip 25 to move, and the connecting strip 25 stretches the spring 26. At the same time, due to the limitation of the inclined rod 21, the slider 22 and the cleaning block 24 are tilted and thrown out, and the rubber block on the outside of the cleaning block 24 is cooperated to make the cleaning block 24 tilt and slide from one side of the connecting block 19 to the other side, and the cleaning block 24 is tightly pressed against the cylindrical inner wall of the outer cylinder 2, and then the cylindrical inner wall of the outer cylinder 2 is scraped. The sealing layer 23 has a certain elasticity to meet the sealing when the slider 22 moves. At the same time, since the horizontal distance moved by the cleaning block 24 is the length of the connecting block 19, multiple cleaning blocks 24 are closely arranged as needed, so that the cylindrical inner wall of the outer cylinder 2 can be scraped as a whole, reducing the scraping dead angle.

[0052] Compared with the scraping of the whole long rod, the long rod will be subject to the resistance of the lithium hexafluorophosphate crystals when rolling, and the scraping effect is not good and it is easy to be damaged. Therefore, the cleaning blocks 24 set in multiple units have better scraping effect. By using a single reciprocating motor 5 as a power source, the cost loss is reduced, and the cleaning and scraping effect of the device is better in integrity, which is convenient for cleaning the inner wall of the outer cylinder 2, reducing the influence on the accuracy of subsequent lithium hexafluorophosphate crystal purification, and solving the problem that some lithium hexafluorophosphate crystals will adhere to the inner wall of the cylinder and are difficult to discharge. The scraping effect of the existing scraping device is relatively general, and there may still be a small number of lithium hexafluorophosphate crystals attached to the inner wall of the cylinder, which are easy to deteriorate and produce by-products, thereby causing trouble for the subsequent vacuum purification of lithium hexafluorophosphate crystals and reducing the purification accuracy of lithium hexafluorophosphate crystals.

[0053] The buffer mechanism is arranged in the middle of the top of the base 1. The buffer mechanism includes an arc ring 27 and an arc block 29. There are no less than two arc rings 27. The bottom end of the arc ring 27 is fixedly connected to the base 1. An auxiliary groove 28 is opened on the inner side of the arc ring 27. The auxiliary groove 28 is opened evenly. The inside of the auxiliary groove 28 is slidably connected to the arc block 29. One side of the arc block 29 is symmetrically rotated and connected to a connecting rod 30.

[0054] One end of the connecting rod 30 away from the arc block 29 is rotatably connected to a sliding rod 31, and the sliding rod 31 is slidably connected to the auxiliary groove 28. Two sliding rods 31 are symmetrically arranged, and one end of the sliding rod 31 away from the connecting rod 30 is fixedly connected to a spring three 32, and the spring three 32 is fixedly installed inside the auxiliary groove 28.

[0055] Rotating members 33 are symmetrically mounted on both sides of the inner cylinder 3 , the rotating member 33 is rotatably connected to the inner cylinder 3 , one end of the rotating member 33 is fixedly connected to a cleaning brush 34 , and the cleaning brush 34 abuts against the outer cylinder 2 .

[0056] The arc ring 27 is located on the outside of the outer cylinder 2, and the inner diameter of the arc ring 27 is larger than the outer diameter of the outer cylinder 2. A feed pipe 35 is installed on the top side of the outer cylinder 2. The feed pipe 35 passes through the outer cylinder 2 and is connected to the interior of the inner cylinder 3. A discharge port 36 is installed on the bottom side of the outer cylinder 2.

[0057] Embodiment 2: Figure 6-Figure 7 and Fig.10 As shown, a buffer mechanism is provided. When the outer cylinder 2 rotates and tilts, the outer side of the outer cylinder 2 will squeeze the arc block 29, and the arc block 29 will slide into the inside of the auxiliary groove 28. The arc block 29 squeezes the connecting rods 30 on both sides, and the connecting rods 30 squeeze the sliding rods 31 on both sides. The sliding rods 31 will compress the spring three 32. The elastic force of the spring three 32 buffers the sliding rods 31, and then the connecting rod 30 acts on the arc block 29, thereby reducing the shaking and instability of the outer cylinder 2 during the rotation process. A rotating part 33 and a cleaning brush 34 are provided. When the lithium hexafluorophosphate crystals inside the outer cylinder 2 roll, part of the lithium hexafluorophosphate crystals will push the rotating part 33 to rotate, and the rotating part 33 drives the cleaning brush 34 to rotate to clean the circular inner walls on both sides of the outer cylinder 2. The size of the cleaning brush 34 can be set according to actual conditions, and is used to clean a small amount of lithium hexafluorophosphate crystals on the circular inner wall of the outer cylinder 2, which also further improves the cleaning effect.

[0058] Working principle: When using the device, first, Figure 1-Figure 10As shown, lithium hexafluorophosphate crystals are input through the feed pipe 35, and the lithium hexafluorophosphate crystals fall into the inner cylinder 3. Inert gas is input through the vacuum treatment device 7 and the vacuum state inside the outer cylinder 2 is maintained. The reciprocating motor 5 is started to rotate slowly, and the reciprocating motor 5 drives the main shaft 6 to rotate. The main shaft 6 drives the outer cylinder 2 and the inner cylinder 3 to rotate. The lithium hexafluorophosphate crystals fall into the outer cylinder 2 from the through holes on the inner cylinder 3, so that the lithium hexafluorophosphate crystals are evenly spread and then fully contacted with the vacuum for purification.

[0059] The main shaft 6 drives the slave pulley 13 to rotate through the main pulley 11, and the slave pulley 13 drives the rotating shaft 12 and the eccentric wheel 14 to rotate. Due to the cooperation between the eccentric wheels 14 on both sides and the fixed base block 16, the mounting plate 4 will intermittently tilt and swing, thereby driving the side of the outer cylinder 2 close to the reciprocating motor 5 to tilt upward with the fixed block 9 as the axis, so as to better realize the uniform spreading of lithium hexafluorophosphate crystals. Spring 18 is used to assist the tilting and swinging of the mounting plate 4.

[0060] At the same time, when the inner cylinder 3 rotates, the centrifugal force of the inner cylinder 3 will throw the slider 22 and the cleaning block 24 outward, and the slider 22 drives the connecting bar 25 to move, and the connecting bar 25 stretches the spring 26. At the same time, due to the limitation of the inclined rod 21, the slider 22 and the cleaning block 24 are tilted and thrown out, and the rubber block on the outside of the cleaning block 24 is cooperated to make the cleaning block 24 tilt and slide from one side of the connecting block 19 to the other side, and the cleaning block 24 is tightly pressed against the cylindrical inner wall of the outer cylinder 2, and then the cylindrical inner wall of the outer cylinder 2 is scraped. At the same time, since the horizontal distance moved by the cleaning block 24 is the length of the connecting block 19, multiple cleaning blocks 24 are closely arranged as needed, so that the cylindrical inner wall of the outer cylinder 2 can be scraped as a whole, reducing the dead angle of scraping. After the processing is completed, the reciprocating motor 5 is turned off, and the purified lithium hexafluorophosphate crystals are discharged and collected through the discharge port 36.

[0061] When the outer cylinder 2 rotates and tilts, the outer side of the outer cylinder 2 will squeeze the arc block 29, and the arc block 29 will slide toward the inside of the auxiliary groove 28. The arc block 29 squeezes the connecting rods 30 on both sides, and the connecting rods 30 squeeze the sliding rods 31 on both sides. The sliding rods 31 will compress the spring three 32, and the elastic force of the spring three 32 will buffer the sliding rod 31, and then the arc block 29 will be acted on through the connecting rod 30, thereby reducing the shaking and instability of the outer cylinder 2 during rotation.

[0062] When the lithium hexafluorophosphate crystals inside the outer cylinder 2 roll, part of the lithium hexafluorophosphate crystals will push the rotating member 33 to rotate, and the rotating member 33 drives the cleaning brush 34 to rotate to clean the circular inner walls on both sides of the outer cylinder 2. The size of the cleaning brush 34 can be set according to actual conditions, and is used to clean a small amount of lithium hexafluorophosphate crystals on the circular inner wall of the outer cylinder 2, which further improves the cleaning effect.

[0063] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0064] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lithium hexafluorophosphate purification device that is easy to clean, comprising a base (1), a vacuum treatment device (7), and an outer cylinder (2) installed in the middle of the top of the base (1), an inner cylinder (3) installed inside the outer cylinder (2), and a mounting plate (4) installed on one side of the outer cylinder (2); It is characterized by: Also includes: A reciprocating motor (5) is fixedly mounted on an upper portion of one side of the mounting plate (4); an output end of the reciprocating motor (5) is fixedly connected to a main shaft (6); the main shaft (6) is fixedly connected to the outer cylinder (2); the main shaft (6) is fixedly connected to the inner cylinder (3); and a gas filling pipe (8) is installed on the top of the vacuum processing device (7); A fixed block (9) is symmetrically fixed to one side of the top of the base (1), the inner side of the fixed block (9) is rotatably connected to a connecting plate (10), and the end of the main shaft (6) away from the reciprocating motor (5) is rotatably connected to the connecting plate (10); A cleaning mechanism is arranged inside the outer cylinder (2), the cleaning mechanism comprising a main pulley (11), a rotating shaft (12) is rotatably connected to the middle of one side of the mounting plate (4), a secondary pulley (13) is fixedly connected to the outer side of the rotating shaft (12), an eccentric wheel (14) is fixedly connected to the end of the rotating shaft (12) away from the mounting plate (4), a mounting seat (15) is fixedly connected to the other side of the top of the base (1), a fixed base block (16) is fixedly connected to the top side of the mounting seat (15), and the eccentric wheel (14) is in contact with the fixed base block (16); The outer side of the inner cylinder (3) is uniformly provided with through holes, and the outer side of the inner cylinder (3) is fixedly connected with a connecting block (19), and the connecting block (19) is arranged in a horizontally close and uniform manner. A sliding groove (20) is provided inside the connecting block (19), and an inner side of the sliding groove (20) is fixedly connected with an inclined rod (21), and a slider (22) is connected inside the sliding groove (20), and the slider (22) is slidably connected to the inclined rod (21), and the side of the slider (22) away from the outer cylinder (2) is rotatably connected with a cleaning block (24), and one side of the slider (22) is fixedly connected with a connecting strip (25), and a spring 2 (26) is installed at the bottom of the connecting strip (25); A feed pipe (35) is installed on one side of the top of the outer cylinder (2), and the feed pipe (35) passes through the outer cylinder (2) and is connected to the interior of the inner cylinder (3). A discharge port (36) is installed on one side of the bottom of the outer cylinder (2); A buffer mechanism is provided in the middle of the top of the base (1), and the buffer mechanism comprises an arc ring (27) and an arc block (29).

2. The easy-to-clean lithium hexafluorophosphate purification device according to claim 1, characterized in that: The main pulley (11) is fixedly connected to one end of the main shaft (6) close to the reciprocating motor (5), the slave pulley (13) is connected to the main pulley (11) through a belt adapter, and the rotating shaft (12) is symmetrically arranged. The rotating shaft (12) is located below the main shaft (6), and two rotating shafts (12) are provided.

3. The easy-to-clean lithium hexafluorophosphate purification device according to claim 1, characterized in that: An empty slot (17) is provided inside the mounting seat (15), the mounting plate (4) is located inside the empty slot (17), the mounting plate (4) is slidably connected to the empty slot (17), and springs (18) are symmetrically installed on both sides of the lower portion of the mounting plate (4), and the side of the spring (18) away from the mounting plate (4) is fixedly connected to the mounting seat (15).

4. The easy-to-clean lithium hexafluorophosphate purification device according to claim 1, characterized in that: A sealing layer (23) is installed on the top of the connecting block (19), the slider (22) is slidably connected to the sealing layer (23), a collar is installed inside the sealing layer (23), the collar fits the slider (22), and the slider (22) is slidably connected to the collar.

5. The easy-to-clean lithium hexafluorophosphate purification device according to claim 1, characterized in that: There are no less than two arc rings (27), the bottom ends of the arc rings (27) are fixedly connected to the base (1), the inner side of the arc ring (27) is provided with an auxiliary groove (28), the auxiliary grooves (28) are evenly provided, the interior of the auxiliary grooves (28) is slidably connected to an arc block (29), and one side of the arc block (29) is symmetrically rotatably connected to a connecting rod (30).

6. The easy-to-clean lithium hexafluorophosphate purification device according to claim 5, characterized in that: The end of the connecting rod (30) away from the arc block (29) is rotatably connected to a sliding rod (31), and the sliding rod (31) is slidably connected to the auxiliary groove (28). Two sliding rods (31) are symmetrically arranged, and the end of the sliding rod (31) away from the connecting rod (30) is fixedly connected to a spring three (32), and the spring three (32) is fixedly installed inside the auxiliary groove (28).

7. The easy-to-clean lithium hexafluorophosphate purification device according to claim 1, characterized in that: Rotating members (33) are symmetrically mounted on both sides of the inner cylinder (3), the rotating member (33) being rotatably connected to the inner cylinder (3), and a cleaning brush (34) being fixedly connected to one end of the rotating member (33), the cleaning brush (34) being in contact with the outer cylinder (2).

8. The easy-to-clean lithium hexafluorophosphate purification device according to claim 5, characterized in that: The arc-shaped ring (27) is located outside the outer cylinder (2), and the inner diameter of the arc-shaped ring (27) is larger than the outer diameter of the outer cylinder (2).

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