Lithium hexafluorophosphate production and separation device

Abstract

The invention discloses a lithium hexafluorophosphate production and separation device, and relates to the technical field of lithium hexafluorophosphate processing, the lithium hexafluorophosphate production and separation device comprises a purification mechanism and a rotating motor mounted on one side of the purification mechanism, the purification mechanism is internally provided with a rotating mechanism, and one end of the rotating mechanism is provided with a sodium fluoride adsorber; the purifying mechanism comprises a purifying and separating box, feeding and discharging holes are formed in one side of the top and one side of the bottom of the purifying and separating box, a fixing disc is fixedly installed on one side of the purifying and separating box, a plurality of spiral gas guiding plates are fixedly installed in the purifying and separating box, the number of the spiral gas guiding plates is three, and the spiral gas guiding plates are arranged in the purifying and separating box. And a spiral gas guide plate is used for achieving the gas guide and drainage effects, gas can enter a second gas inlet pipe through a purification and separation box, lithium hexafluorophosphate can be conveniently dried, and under the effect of centrifugal force, a flexible scraper is attached to the inner surface of the rotating cylinder, and lithium hexafluorophosphate in the rotating cylinder is evenly laid and flattened.

Description

Technical Field

[0001] The invention relates to the technical field of lithium hexafluorophosphate processing, in particular to a lithium hexafluorophosphate production and separation device. Background Art

[0002] Lithium hexafluorophosphate has always been the main electrolyte lithium salt used in commercial lithium-ion batteries. Since anhydrous hydrogen fluoride is used as a solvent in the production of lithium hexafluorophosphate, lithium hexafluorophosphate and hydrogen fluoride are easy to form a complex, resulting in a certain amount of hydrogen fluoride usually contained in the crude lithium hexafluorophosphate product. In addition, since the raw materials for the production of lithium hexafluorophosphate usually contain trace amounts of oxides, they will react with hydrogen fluoride to generate water during the production process of lithium hexafluorophosphate, and the anhydrous hydrogen fluoride solvent usually also contains trace amounts of water. Therefore, 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] Publication No. CN205569804U discloses a lithium hexafluorophosphate crystallization separation and purification device, including a base and a cylinder, the surface of the base is provided on the cylinder through a bracket, a drum is provided inside the cylinder, a rotating shaft is welded at the centers of both ends of the drum, the rotating shaft is connected to the center of the end face of the cylinder through a sealed bearing, and one of the rotating shafts passes through the side of the cylinder and is connected to a pulley, a motor is fixedly connected to the surface of the base, the output shaft of the motor is also connected to the pulley, and the two pulleys are connected by a belt, through holes are evenly provided at both ends of the drum, spoiler blocks are evenly provided on the inner wall of the drum, a feed port is provided at the top of one end of the cylinder, and a discharge port is provided at the bottom of the cylinder, the rotating shaft is driven by the motor to rotate, and the drum rolls in the cylinder, so that the crystals in the drum can be fully exposed to the vacuum atmosphere, and the inner wall of the drum is evenly covered with spoilers to disturb the crystals, and the exposure of the lithium hexafluorophosphate crystals is more sufficient, which can effectively reduce the hydrogen fluoride present in the lithium hexafluorophosphate product, and the purification efficiency is high and the purification effect is good. However, the patent still has the following problems in actual use: When separating and purifying lithium hexafluorophosphate crystals, the lithium hexafluorophosphate crystal separation and purification device cannot ensure that the mixed gas of dry inert gas and fluorine gas can enter the interior of the drum through the through holes of the drum to dry and purify the lithium hexafluorophosphate crystals in the drum, thereby causing incomplete purification of the lithium hexafluorophosphate crystals.

[0004] A lithium hexafluorophosphate production and separation device is proposed to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a lithium hexafluorophosphate production and separation device to solve the problem that the lithium hexafluorophosphate crystal separation and purification device proposed in the above-mentioned background technology cannot ensure that the mixed gas of dry inert gas and fluorine gas can enter the interior of the drum through the through holes of the drum when separating and purifying lithium hexafluorophosphate crystals, and dry and purify the lithium hexafluorophosphate crystals inside the drum, thereby causing incomplete purification of the lithium hexafluorophosphate crystals.

[0006] To achieve the above object, the present invention provides the following technical solution: a lithium hexafluorophosphate production and separation device, comprising a purification mechanism, and a rotating motor installed on one side of the purification mechanism; A rotating mechanism is arranged inside the purification mechanism, and a sodium fluoride adsorber is arranged at one end of the rotating mechanism; Also includes: The purification mechanism comprises a purification separation box, the top side and the bottom side of the purification separation box are both provided with inlet and outlet holes, and a fixed plate is fixedly installed on one side of the purification separation box; Among them, a plurality of spiral air guide plates are fixedly installed inside the purification separation box, and the number of the spiral air guide plates is three; Among them, a fixed bracket is fixedly installed on the bottom of the fixed plate, the output end of the rotating motor is fixedly connected to a rotating gear, and one side of the rotating gear is fixedly connected to a rotating air chamber.

[0007] Preferably, a first air inlet pipe is fixedly connected to the right center position of the rotating air bin, a plurality of air outlet pipes are fixedly installed on the outer side of the rotating air bin, and protective elbows are fixedly connected to the ends of the air outlet pipes.

[0008] Preferably, a plurality of connecting support columns are fixedly installed on the outer surface of the rotating air bin, and a telescopic sliding rod is fixedly connected to the end of the connecting support column. A telescopic spring is sleeved on the outer side of the telescopic spring, and a spring sleeve is slidably connected to the outer side of the spring sleeve, and a flexible scraper is fixedly connected to the outer side of the spring sleeve.

[0009] Preferably, a main air inlet pipe is provided on the left side of the purification separation box, an air pump is fixedly connected to the end of the main air inlet pipe, a plurality of branch pipes are fixedly connected to the outside of the air pump, the number of the branch pipes is three, and a first sealing cover is connected to the internal thread of the inlet and outlet holes.

[0010] Preferably, the rotating mechanism comprises a planetary gear sleeve, which is fixedly mounted on a side of the purification separation box away from the fixed disk, and a plurality of air intake holes are opened on one side of the planetary gear sleeve, which are fixedly connected to the shunt pipe.

[0011] Preferably, the inner side of the planetary gear sleeve is rotatably connected to a rotating bearing, the inner side of the rotating bearing is fixedly connected to a meshing gear ring, the inner side of the meshing gear ring is meshingly connected to a plurality of meshing gears, both ends of the meshing gears are rotatably connected to gear connecting shafts, the meshing gears are rotatably connected to the planetary gear sleeve via the gear connecting shaft, the meshing gears are meshingly connected to the rotating gears, and an axial hole is opened at the center position of one side of the planetary gear sleeve.

[0012] Preferably, a rotating cylinder is fixedly connected to one side of the meshing gear ring, a plurality of air holes are opened inside the rotating cylinder, the sodium fluoride adsorber is arranged on one side of the rotating cylinder, a plurality of second air inlet pipes are fixedly connected to the outside of the rotating cylinder, the second air inlet pipes are fixedly connected to the fixed disk, a second sealing cover is threadedly connected to the outside of the rotating cylinder near the inlet and outlet holes, the rotating cylinder is rotatably connected to the fixed disk, and the rotating cylinder is sleeved on the outside of the rotating air bin.

[0013] Preferably, the first air inlet pipe is fixedly connected to the sodium fluoride adsorber, and the connecting support column is slidably connected to the spring sleeve via a telescopic sliding rod and a telescopic spring.

[0014] Preferably, the rotating motor is fixedly mounted at the outer center position of the planetary gear sleeve, the output end of the rotating motor is rotatably connected to the planetary gear sleeve through an axial hole, and the planetary gear sleeve is fixedly mounted on the top of the fixed bracket.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the lithium hexafluorophosphate production and separation device, by setting a purification mechanism and utilizing a spiral air guide plate to achieve the function of air guide and drainage, enables the gas to enter the second air inlet pipe through the purification separation box, and facilitates the drying of the lithium hexafluorophosphate; under the action of centrifugal force, the flexible scraper drives the spring sleeve to telescopically move; utilizing the action of the telescopic sliding rod and the elastic force of the telescopic spring, the flexible scraper can produce a certain displacement, and the flexible scraper can be attached to the inner surface of the rotating cylinder, thereby evenly laying and smoothing the lithium hexafluorophosphate inside the rotating cylinder; by setting a rotating mechanism, the meshing action between the meshing gear ring, the meshing gear and the rotating gear can be utilized to realize the reverse rotation of the rotating cylinder and the rotating gas bin, so that the lithium hexafluorophosphate can be fully contacted with the mixed gas of the heated and dried inert gas and the fluorine gas, and is convenient for removing the moisture in the lithium hexafluorophosphate; utilizing the sodium fluoride adsorber, the hydrogen fluoride gas in the lithium hexafluorophosphate can be absorbed when the gas circulation is generated in the purification separation box; the specific contents are as follows: 1. By setting the purification mechanism, not only can the purification separation box be opened by using the inlet and outlet holes, but also the rotating cylinder can be opened by cooperating with the second sealing covers at both ends of the rotating cylinder, and lithium hexafluorophosphate can be put into the rotating cylinder for purification. At the same time, the rotating motor is started to drive the rotating gear and the rotating air bin to rotate. Under the action of centrifugal force, the flexible scraper drives the spring sleeve to move telescopically. By using the action of the telescopic sliding rod and the elastic force of the telescopic spring, the flexible scraper can produce a certain displacement, so that the flexible scraper is attached to the inner surface of the rotating cylinder, so that the lithium hexafluorophosphate inside the rotating cylinder is evenly spread. The inner surface of the rotating cylinder is provided with a plurality of layers of ... 2. By setting up a rotating mechanism, the meshing gear ring can be used to realize the rotation of the rotating cylinder, and the meshing action between the meshing gear ring, the meshing gear and the rotating gear can be used to realize the rotation of the rotating cylinder and the rotating gas bin in the opposite direction, so that the lithium hexafluorophosphate can be fully contacted with the mixed gas of the heated dry inert gas and the fluorine gas, which is convenient for removing the moisture in the lithium hexafluorophosphate. The sodium fluoride adsorber can absorb the hydrogen fluoride gas in the lithium hexafluorophosphate when the gas circulation is generated in the purification separation box, so as to further purify the lithium hexafluorophosphate. By setting air holes on the surface of the rotating cylinder, when the gas flows through the outer surface of the rotating cylinder, the lithium hexafluorophosphate can be dried and the hydrogen fluoride gas inside the lithium hexafluorophosphate can be taken away, so as to achieve the purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the cross section of the purification separation box in the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the spiral air guide plate in the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the rotating gas bin in the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the flexible scraper in the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of the middle A area; Figure 7 It is a schematic diagram of the three-dimensional structure of the rotating mechanism in the present invention; Figure 8It is a schematic diagram of the three-dimensional structure of the cross section of the planetary gear sleeve in the present invention; Fig. 9 For the present invention Figure 4 Schematic diagram of the enlarged structure of the middle B area; Fig.10 For the present invention Figure 7 Schematic diagram of the enlarged structure of the middle C area.

[0017] In the figure: 1. Purification mechanism; 101. Purification separation box; 102. Inlet and outlet holes; 103. Fixed plate; 104. Spiral air guide plate; 105. Fixed bracket; 106. Rotating motor; 107. Rotating gear; 108. Rotating air chamber; 109. First air inlet pipe; 110. Air outlet pipe; 111. Protective elbow; 112. Connecting support column; 113. Telescopic sliding rod; 114. Telescopic spring; 115. Spring sleeve; 116. Flexible Scraper; 117, main air inlet pipe; 118, air pump; 119, shunt pipe; 120, first sealing cover; 2, rotating mechanism; 201, planetary gear sleeve; 202, air inlet hole; 203, rotating bearing; 204, meshing gear ring; 205, meshing gear; 206, gear connecting shaft; 207, shaft hole; 208, rotating cylinder; 209, air vent; 210, sodium fluoride adsorber; 211, second air inlet pipe; 212, second sealing cover. DETAILED DESCRIPTION

[0018] 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 implementation regulations described 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.

[0019] See also Figure 1-Figure 10The present invention provides a technical solution: a lithium hexafluorophosphate production and separation device, comprising a purification mechanism 1, and a rotating motor 106 installed on one side of the purification mechanism 1, a rotating mechanism 2 is arranged inside the purification mechanism 1, and a sodium fluoride adsorber 210 is arranged at one end of the rotating mechanism 2, the purification mechanism 1 comprises a purification separation box 101, the top side and the bottom side of the purification separation box 101 are both provided with inlet and outlet holes 102, a fixed plate 103 is fixedly installed on one side of the purification separation box 101, wherein a plurality of spiral air guide plates 103 are fixedly installed inside the purification separation box 101 04, there are three spiral air guide plates 104, wherein a fixed bracket 105 is fixedly installed at the bottom of the fixed plate 103, a rotating gear 107 is fixedly connected to the output end of the rotating motor 106, a rotating air chamber 108 is fixedly connected to one side of the rotating gear 107, a first air inlet pipe 109 is fixedly connected to the right center position of the rotating air chamber 108, a plurality of air outlet pipes 110 are fixedly installed on the outer side of the rotating air chamber 108, a protective elbow 111 is fixedly connected to the end of the air outlet pipe 110, and a plurality of connecting support columns 110 are fixedly installed on the outer surface of the rotating air chamber 108 2, the end of the connecting support column 112 is fixedly connected with a telescopic sliding rod 113, the outer side of the telescopic sliding rod 113 is sleeved with a telescopic spring 114, the outer side of the telescopic spring 114 is slidably connected with a spring sleeve 115, and the outer side of the spring sleeve 115 is fixedly connected with a flexible scraper 116. By setting the purification mechanism 1, not only can the purification separation box 101 be opened by using the inlet and outlet holes 102, but also the rotating cylinder 208 can be opened by cooperating with the second sealing covers 212 at both ends of the rotating cylinder 208, and lithium hexafluorophosphate is placed inside the rotating cylinder 208 for purification, and at the same time, the purification separation box 101 can be opened by using the second sealing covers 212 at both ends of the rotating cylinder 208. The rotating motor 106 drives the rotating gear 107 and the rotating air chamber 108 to rotate. Under the action of centrifugal force, the flexible scraper 116 drives the spring sleeve 115 to telescopically move. The flexible scraper 116 can be displaced to a certain extent by utilizing the elastic force of the telescopic sliding rod 113 and the telescopic spring 114, so that the flexible scraper 116 fits the inner surface of the rotating cylinder 208, thereby evenly laying and smoothing the lithium hexafluorophosphate inside the rotating cylinder 208, so that the lithium hexafluorophosphate can be evenly distributed on the inner surface of the rotating cylinder 208, which is convenient for drying the lithium hexafluorophosphate.

[0020] A main air inlet pipe 117 is provided on the left side of the purification separation box 101, and an air pump 118 is fixedly connected to the end of the main air inlet pipe 117. A plurality of shunt pipes 119 are fixedly connected to the outside of the air pump 118. The number of shunt pipes 119 is three. The internal thread of the inlet and outlet hole 102 is connected to the first sealing cover 120. The first air inlet pipe 109 is fixedly connected to the sodium fluoride adsorber 210. The connecting support column 112 is slidably connected to the spring sleeve 115 through the telescopic sliding rod 113 and the telescopic spring 114. The rotating motor 106 is fixedly installed at the outer center position of the planetary gear sleeve 201. The output end of the rotating motor 106 is connected to the planetary gear through the shaft hole 207. The sleeve 201 is rotatably connected, and the planetary gear sleeve 201 is fixedly installed on the top of the fixed bracket 105. The air pump 118 is used to introduce a mixed gas of heated and dried inert gas and fluorine gas into the interior of the purification separation box 101. The spiral air guide plate 104 is used to achieve the function of air guidance and drainage, so that the gas can pass through the purification separation box 101 into the second air inlet pipe 211, which is convenient for drying lithium hexafluorophosphate. The protective elbow 111 at the end of the air outlet pipe 110 can effectively protect the air outlet pipe 110 to prevent lithium hexafluorophosphate crystals from entering the interior of the air outlet pipe 110 through the protective elbow 111, thereby causing the air outlet pipe 110 to be blocked.

[0021] The rotating mechanism 2 includes a planetary gear sleeve 201, which is fixedly installed on a side of the purification separation box 101 away from the fixed plate 103. A plurality of air intake holes 202 are opened on one side of the planetary gear sleeve 201, and the air intake holes 202 are fixedly connected to the shunt pipe 119. A rotating bearing 203 is rotatably connected to the inner side of the planetary gear sleeve 201, and a meshing gear ring 204 is fixedly connected to the inner side of the rotating bearing 203. A plurality of meshing gears 205 are meshedly connected to the inner side of the meshing gear ring 204, and gears 205 are rotatably connected to the two ends of the meshing gears 205. The meshing gear 205 is rotatably connected to the planetary gear sleeve 201 through the gear connecting shaft 206, and the meshing gear 205 is meshed with the rotating gear 107. A shaft hole 207 is provided at the center of one side of the planetary gear sleeve 201, and a rotating cylinder 208 is fixedly connected to one side of the meshing gear ring 204. A plurality of air holes 209 are provided inside the rotating cylinder 208. A sodium fluoride adsorber 210 is arranged on one side of the rotating cylinder 208, and a plurality of second air inlet pipes 211 are fixedly connected to the outer side of the rotating cylinder 208. The second air inlet pipe 212 is provided on the outer side of the rotating cylinder 208. 11 is fixedly connected to the fixed disk 103, the outer side of the rotating cylinder 208 near the inlet and outlet hole 102 is threadedly connected with a second sealing cover 212, the rotating cylinder 208 is rotatably connected to the fixed disk 103, the rotating cylinder 208 is sleeved on the outer side of the rotating gas bin 108, and the rotating mechanism 2 can be used to realize the rotation of the rotating cylinder 208 by using the meshing gear ring 204, and the meshing action between the meshing gear ring 204, the meshing gear 205 and the rotating gear 107 is used to realize the rotation of the rotating cylinder 208 and the rotating gas bin 108 in the opposite direction, so that the hexafluorophosphorus The lithium hexafluorophosphate can be fully contacted with the mixed gas of the heated dry inert gas and the fluorine gas, so as to remove the moisture in the lithium hexafluorophosphate. The sodium fluoride adsorber 210 can absorb the hydrogen fluoride gas in the lithium hexafluorophosphate when the gas circulation is generated in the purification separation box 101, so as to further purify the lithium hexafluorophosphate. By setting the air holes 209 on the surface of the rotating cylinder 208, when the gas flows through the outer surface of the rotating cylinder 208, the lithium hexafluorophosphate can be dried and the hydrogen fluoride gas inside the lithium hexafluorophosphate can be taken away, so as to achieve the purification effect.

[0022] Working principle: Before using this lithium hexafluorophosphate production separation device, it is necessary to check the overall condition of the device to ensure that it can work normally. Figure 1 - Fig.10As shown, first, the first sealing cover 120 on the top side of the purification separation box 101 is opened. Since the inlet and outlet holes 102 inside the purification separation box 101 are at the same position as the inlet and outlet holes 102 inside the rotating cylinder 208, the second sealing cover 212 is opened while the first sealing cover 120 is opened, and lithium hexafluorophosphate is introduced into the interior of the rotating cylinder 208 through a pipeline, and the second sealing cover 212 is closed, and the rotating motor 106 is started to drive the rotating gear 107 and the rotating gas chamber 108 to rotate, and the meshing action between the meshing gear ring 204, the meshing gear 205 and the rotating gear 107 is used to realize the rotating cylinder 208 and the rotating gas chamber 108 to rotate in the opposite direction, and the air pump 118 is used to The mixed gas of the heated and dried inert gas and fluorine gas introduced into the main air inlet pipe 117 is injected into the interior of the purification separation box 101 by means of the shunt pipe 119 and the air inlet through hole 202. Secondly, the spiral air guide plate 104 is used to realize the air guiding and drainage, so that the gas can enter the second air inlet pipe 211 through the purification separation box 101, so as to facilitate the drying of the lithium hexafluorophosphate. Since the surface of the rotating cylinder 208 is provided with air holes 209, part of the gas enters the interior of the rotating cylinder 208 through the air holes 209 when flowing through the outer surface of the rotating cylinder 208, so as to dry the outer surface of the lithium hexafluorophosphate. Part of the gas enters the sodium fluoride adsorber 210 through the second air inlet pipe 211. , enters the interior of the rotating gas bin 108 through the sodium fluoride adsorber 210 and the first air inlet pipe 109, and sprays the interior of the rotating cylinder 208 through the air outlet pipe 110 and the protective elbow 111 to dry the interior of the lithium hexafluorophosphate. The protective elbow 111 at the end of the air outlet pipe 110 can effectively protect the air outlet pipe 110. When the rotating gas bin 108 rotates, the lithium hexafluorophosphate crystals are thrown out from the interior of the protective elbow 111 under the action of centrifugal force, so as to prevent the lithium hexafluorophosphate crystals from entering the interior of the air outlet pipe 110 through the protective elbow 111, thereby causing the air outlet pipe 110 to be blocked. At the same time, the gas can pass through the air vent 209 in the purification separation box 101. An internal circulation is generated, and when the gas passes through the sodium fluoride adsorber 210, it can absorb the hydrogen fluoride gas inside the lithium hexafluorophosphate, thereby achieving the purpose of purification. Finally, while the rotating cylinder 208 rotates, due to the action of centrifugal force, the flexible scraper 116 drives the spring sleeve 115 to move telescopically, and the flexible scraper 116 can be displaced to a certain extent by utilizing the elastic force of the telescopic sliding rod 113 and the telescopic spring 114, so that the flexible scraper 116 fits the inner surface of the rotating cylinder 208, thereby evenly laying and smoothing the lithium hexafluorophosphate inside the rotating cylinder 208, so that the lithium hexafluorophosphate can be evenly distributed on the inner surface of the rotating cylinder 208, which is convenient for drying the lithium hexafluorophosphate.

[0023] 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 production and separation device, comprising a purification mechanism (1), and a rotating motor (106) installed on one side of the purification mechanism (1); A rotating mechanism (2) is disposed inside the purification mechanism (1), and a sodium fluoride adsorber (210) is disposed at one end of the rotating mechanism (2); It is characterized in that Also includes: The purification mechanism (1) comprises a purification separation box (101), wherein the top side and the bottom side of the purification separation box (101) are both provided with inlet and outlet holes (102), and a fixed plate (103) is fixedly installed on one side of the purification separation box (101); A plurality of spiral air guide plates (104) are fixedly installed inside the purification separation box (101), and the number of the spiral air guide plates (104) is three; A fixed bracket (105) is fixedly mounted on the bottom of the fixed plate (103), a rotating gear (107) is fixedly connected to the output end of the rotating motor (106), and a rotating air chamber (108) is fixedly connected to one side of the rotating gear (107).

2. A lithium hexafluorophosphate production and separation device according to claim 1, characterized in that: A first air inlet pipe (109) is fixedly connected to the right center of the rotating air bin (108), a plurality of air outlet pipes (110) are fixedly installed on the outside of the rotating air bin (108), and protective elbows (111) are fixedly connected to the ends of the air outlet pipes (110).

3. A lithium hexafluorophosphate production and separation device according to claim 2, characterized in that: A plurality of connecting support columns (112) are fixedly mounted on the outer surface of the rotating air bin (108); a telescopic sliding rod (113) is fixedly connected to the end of the connecting support column (112); a telescopic spring (114) is sleeved on the outer side of the telescopic sliding rod (113); a spring sleeve (115) is slidably connected to the outer side of the telescopic spring (114); and a flexible scraper (116) is fixedly connected to the outer side of the spring sleeve (115).

4. A lithium hexafluorophosphate production and separation device according to claim 3, characterized in that: A main air inlet pipe (117) is arranged on the left side of the purification separation box (101); an air pump (118) is fixedly connected to the end of the main air inlet pipe (117); a plurality of flow diversion pipes (119) are fixedly connected to the outside of the air pump (118); the number of the flow diversion pipes (119) is three; and a first sealing cover (120) is threadedly connected to the inside of the inlet and outlet holes (102).

5. A lithium hexafluorophosphate production and separation device according to claim 4, characterized in that: The rotating mechanism (2) comprises a planetary gear sleeve (201), the planetary gear sleeve (201) being fixedly mounted on a side of the purification separation box (101) away from the fixed plate (103), a plurality of air intake holes (202) being provided on one side of the planetary gear sleeve (201), the air intake holes (202) being fixedly connected to the diverter pipe (119).

6. A lithium hexafluorophosphate production and separation device according to claim 5, characterized in that: The inner side of the planetary gear sleeve (201) is rotatably connected to a rotating bearing (203), the inner side of the rotating bearing (203) is fixedly connected to a meshing gear ring (204), the inner side of the meshing gear ring (204) is meshingly connected to a plurality of meshing gears (205), both ends of the meshing gears (205) are rotatably connected to gear connecting shafts (206), the meshing gears (205) are rotatably connected to the planetary gear sleeve (201) via the gear connecting shafts (206), the meshing gears (205) are meshingly connected to the rotating gear (107), and an axis hole (207) is provided at the center of one side of the planetary gear sleeve (201).

7. A lithium hexafluorophosphate production and separation device according to claim 6, characterized in that: A rotating cylinder (208) is fixedly connected to one side of the meshing gear ring (204), a plurality of air holes (209) are provided inside the rotating cylinder (208), the sodium fluoride adsorber (210) is arranged on one side of the rotating cylinder (208), a plurality of second air inlet pipes (211) are fixedly connected to the outside of the rotating cylinder (208), the second air inlet pipes (211) are fixedly connected to the fixed disk (103), a second sealing cover (212) is threadedly connected to the outside of the rotating cylinder (208) near the inlet and outlet holes (102), the rotating cylinder (208) is rotatably connected to the fixed disk (103), and the rotating cylinder (208) is sleeved on the outside of the rotating gas bin (108).

8. A lithium hexafluorophosphate production and separation device according to claim 7, characterized in that: The first air inlet pipe (109) is fixedly connected to the sodium fluoride adsorber (210), and the connecting support column (112) is slidably connected to the spring sleeve (115) via a telescopic sliding rod (113) and a telescopic spring (114).

9. A lithium hexafluorophosphate production and separation device according to claim 8, characterized in that: The rotating motor (106) is fixedly mounted at the outer center position of the planetary gear sleeve (201); the output end of the rotating motor (106) is rotationally connected to the planetary gear sleeve (201) via an axial hole (207); and the planetary gear sleeve (201) is fixedly mounted on the top of the fixed bracket (105).

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