CN117816025B - A carbon coating device for positive electrode materials of sodium ion batteries - Google Patents

Abstract

The invention discloses a carbon coating device for a positive electrode material of a sodium ion battery, belonging to the technical field of battery materials, comprising a bracket and a carbon coating mechanism, wherein the carbon coating mechanism comprises: a coating tank, a processing frame, a mixing component, a heater, a purification component and an air intake component; a funnel-shaped processing frame is arranged inside the coating tank, the inside of the processing frame can be heated by the heater, the material inside the processing frame can be fully mixed and stirred by the mixing component, the coating effect is improved, the smoke generated during the processing can be fully purified by the purification component, and the pollution caused by direct discharge of the smoke is avoided; the air intake component can stably transport inert gas to the inside of the processing frame, and the oxidation reaction of the material is avoided, which is convenient for use.

Description

A carbon coating device for positive electrode materials of sodium ion batteries

Technical Field

The invention belongs to the technical field of battery materials, and in particular relates to a carbon coating device for a positive electrode material of a sodium ion battery.

Background technique

With the rapid development of society, energy and environmental issues are becoming increasingly prominent, and it has become more urgent to find new clean energy to replace oil resources. Power batteries, as a new type of clean energy, have attracted attention from countries around the world. Power batteries are the core components of mobile electrical appliances such as electric vehicles and power tools. The manufacturing cost and energy consumption of batteries, whether they cause environmental pollution, and the recycling rate of resources will also become important indicators for evaluating battery materials; sodium is one of the most abundant elements on the earth, and its chemical properties are similar to those of lithium, so it may also be suitable for lithium-ion battery systems; sodium-ion batteries have many advantages over lithium-ion batteries, such as low cost and good safety. With the deepening of research, sodium-ion batteries will become more and more cost-effective and are expected to replace lithium-ion batteries and be widely used in the future.

The existing carbon coating equipment for sodium ion battery positive electrode materials has poor carbon coating efficiency and coating effect during use. It is inconvenient to exhaust the air inside the equipment, causing oxidation reaction of the material. The generated flue gas is inconvenient to handle and easily causes pollution.

In order to avoid the above technical problems, it is necessary to provide a carbon coating device for sodium ion battery positive electrode materials to overcome the above defects in the prior art.

Summary of the invention

The object of the present invention is to provide a carbon coating device for a positive electrode material of a sodium ion battery to solve the problems raised in the above background technology.

To achieve the above object, the present invention provides the following technical solutions:

A carbon coating device for a positive electrode material of a sodium ion battery comprises a bracket and a carbon coating mechanism, wherein the carbon coating mechanism comprises:

A coating tank is installed on the bracket, a processing frame is provided on the inner side of the coating tank, the processing frame is funnel-shaped, a feed port is provided on the top of the coating tank, a mixing assembly is provided on the inner side of the processing frame for mixing and stirring the materials inside the processing frame, a heater is installed between the outer side of the processing frame and the coating tank for heating the inner side of the processing frame, an exhaust hole is provided on the top of the coating tank, a purification assembly is installed at the exhaust hole for conveying and purifying the fume generated during the processing in the coating tank; a discharge hole is provided at the bottom of the coating tank, a discharge pipe is installed at the bottom of the discharge hole, and a solenoid valve is installed on the discharge pipe; an air intake assembly is provided in the middle of the bottom end of the coating tank for conveying inert gas to the inside of the processing frame.

As a further technical solution of the present invention: the mixing assembly comprises:

A driving member is fixedly installed in the middle of the top end of the coating tank, a driving rod is fixedly installed at the output end of the driving member, the driving rod extends into the inner side of the processing frame and is vertical, a fixed plate is installed at the bottom end of the driving rod, the cross-sectional shape of the fixed plate is an inverted triangle, scrapers are installed at both ends of the fixed plate, the scrapers are parallel to the inner wall of the processing frame, a moving cylinder is provided on the outside of the driving rod, a stirring plate is installed on the outside of the moving cylinder, and a moving component is also installed between the moving cylinder and the driving rod, which is used to drive the moving cylinder to reciprocate in the vertical direction along the driving rod when the driving rod rotates.

As a further technical solution of the present invention: the mobile component comprises:

The movable frame is installed at the top of the movable cylinder, and the movable cylinder is rotatably connected with the movable frame, and the first bevel gear is installed on the outer side of the top of the driving rod, and the first fixed frame is installed on the top of the inner top of the coating tank, and a rotating rod is installed on the first fixed frame, and a second bevel gear is installed at one end of the rotating rod, and the first bevel gear is meshed with the second bevel gear. A second fixed frame is provided on the side of the first fixed frame, and a rotating tooth is installed on the second fixed frame, and the rotating tooth is rotatably connected with the second fixed frame, and the rotating tooth is matched with the rotating rod, and a connecting component is installed between the rotating tooth and the movable frame, which is used to drive the movable frame and the movable cylinder to move in the vertical direction when the rotating tooth rotates.

As a further technical solution of the present invention: the connection assembly comprises:

A rotating frame is installed at one side edge of the rotating tooth, hinge seats are installed at both ends of the movable frame, a connecting rod is installed between the rotating frame and the hinge seat, and both ends of the connecting rod are rotatably connected to the rotating frame and the hinge seat.

As a further technical solution of the present invention: the purification component comprises:

A purification box is located on the side of the coating tank and fixedly installed on the bracket, a liquid storage tank is installed on the inner side of the purification box, a fan is installed on the top of the liquid storage tank, a first connecting pipe is installed on the air inlet end of the fan, the first connecting pipe is connected to the exhaust hole on the coating tank, a second connecting pipe is installed on the air outlet end of the fan, the second connecting pipe extends into the inner side of the liquid storage tank, a delivery pipe is installed on the bottom end of the second connecting pipe, the delivery pipe is rotatably connected to the second connecting pipe, an air delivery frame is installed on the bottom end of the delivery pipe, a plurality of first nozzles are installed on one side of the air delivery frame, and the air delivery frame is provided with a plurality of nozzles and circumferentially distributed on the outer side of the bottom end of the delivery pipe; an exhaust frame is also installed on the top of the liquid storage tank, and a filter is installed on the inner side of the exhaust frame.

As a further technical solution of the present invention: the air intake assembly comprises:

An air intake pipe is installed in the middle of the bottom end of the fixed plate, a second nozzle is installed on the side of the top end of the air intake pipe, the bottom end of the air intake pipe extends out of the covering tank and is installed with a third connecting pipe, the air intake pipe is rotatably connected to the third connecting pipe and the covering tank, an air storage tank is installed on the bracket, and the air storage tank is connected to the third connecting pipe.

As a further technical solution of the present invention: a slide bar is provided on the outer wall of the driving rod, a slide groove is provided on the inner wall of the moving cylinder, the slide bar is connected with the slide groove in a concave-convex manner, and both the slide bar and the slide groove are vertical, so that the driving rod drives the moving cylinder to rotate.

Compared with the prior art, the beneficial effects of the present invention are as follows:

The present invention provides a carbon coating device for positive electrode materials of sodium ion batteries. A funnel-shaped processing frame is provided inside the coating tank. The inside of the processing frame can be heated by a heater. The material inside the processing frame can be fully mixed and stirred by a mixing component to improve the coating effect. The flue gas generated during the processing can be fully purified by a purification component to avoid pollution caused by direct discharge of the flue gas. The air intake component can stably transport inert gas to the inside of the processing frame to avoid oxidation reaction of the material, which is convenient for use.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the bottom end of the bracket in the present invention.

FIG. 3 is a schematic diagram of the structure of the mixing assembly in the present invention.

FIG. 4 is a schematic diagram of the structure of the inner side of the processing frame in the present invention.

FIG. 5 is a schematic diagram of the structure of the inner side of the coating tank in the present invention.

FIG. 6 is a schematic diagram of the structure of the purification component in the present invention.

FIG. 7 is a schematic diagram of the structure of the air intake assembly of the present invention.

FIG8 is a schematic diagram of the structure enlarged at point A in FIG7 of the present invention.

In the attached drawings: 1- bracket, 2- coating tank, 3- processing frame, 4- feed port, 5- mixing assembly, 51- driving member, 52- driving rod, 53- fixed plate, 54- scraper, 55- moving cylinder, 56- stirring plate, 57- moving assembly, 571- moving frame, 572- first bevel gear, 573- first fixed frame, 574- rotating rod, 575- second bevel gear, 576- second fixed frame, 577- rotating gear, 58- connecting assembly, 581- rotating frame, 582- hinge Connector, 583-connecting rod, 6-heater, 7-exhaust hole, 8-purification component, 81-purification box, 82-liquid storage tank, 83-fan, 84-first connecting pipe, 85-second connecting pipe, 86-delivery pipe, 87-gas delivery frame, 88-first nozzle, 89-exhaust frame, 80-filter, 9-intake component, 91-intake pipe, 92-second nozzle, 93-third connecting pipe, 94-gas tank, 10-discharge hole, 11-discharge pipe, 12-slide, 13-slide.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

As shown in FIG. 1 to FIG. 8 , in an embodiment provided by the present invention, a carbon coating device for a positive electrode material of a sodium ion battery comprises a bracket 1 and a carbon coating mechanism, wherein the carbon coating mechanism comprises:

A coating tank 2 is installed on the bracket 1, and a processing frame 3 is provided on the inner side of the coating tank 2. The processing frame 3 is funnel-shaped, and a feed port 4 is provided on the top of the coating tank 2. A mixing component 5 is provided on the inner side of the processing frame 3 for mixing and stirring the materials inside the processing frame 3. A heater 6 is installed between the outer side of the processing frame 3 and the coating tank 2 for heating the inner side of the processing frame 3. An exhaust hole 7 is provided on the top of the coating tank 2, and a purification component 8 is installed at the exhaust hole 7 for conveying and purifying the fume generated during the processing in the coating tank 2; a discharge hole 10 is provided at the bottom of the coating tank 2, and a discharge pipe 11 is installed at the bottom of the discharge hole 10, and a solenoid valve is installed on the discharge pipe 11; an air intake component 9 is provided in the middle of the bottom end of the coating tank 2 for conveying inert gas to the inside of the processing frame 3.

In this embodiment, a funnel-shaped processing frame 3 is provided on the inner side of the coating tank 2. The inner side of the processing frame 3 can be heated by the heater 6. The material inside the processing frame 3 can be conveniently mixed and stirred by the mixing component 5 to improve the coating effect. The flue gas generated during the processing can be fully purified by the purification component 8 to avoid pollution caused by direct discharge of the flue gas; the air intake component 9 can stably transport inert gas to the inside of the processing frame 3 to avoid oxidation reaction of the material and facilitate use; the heater 6 can evenly heat the inside of the heating frame and perform insulation operation through the coating tank 2 to ensure the heating effect. The exhaust hole 7 is connected to the purification component 8 to facilitate the treatment of the flue gas. The discharge pipe 11, the discharge hole 10 and the solenoid valve facilitate the discharge of the material from the coating tank 2, and the operation is convenient.

In one embodiment of the present invention, referring to FIG. 1 , FIG. 3 , FIG. 4 and FIG. 5 , the mixing assembly 5 includes:

A driving member 51 is fixedly mounted at the middle of the top end of the coating tank 2, and a driving rod 52 is fixedly mounted at the output end of the driving member 51. The driving rod 52 extends into the inner side of the processing frame 3 and is vertical. A fixing plate 53 is mounted at the bottom end of the driving rod 52, and the cross-sectional shape of the fixing plate 53 is an inverted triangle. Scrapers 54 are mounted at both ends of the fixing plate 53, and the scrapers 54 are parallel to the inner wall of the processing frame 3. A moving cylinder 55 is provided on the outer side of the driving rod 52, and a stirring plate 56 is mounted on the outer side of the moving cylinder 55. A moving assembly 57 is also installed between the moving cylinder 55 and the driving rod 52, which is used to drive the moving cylinder 55 to reciprocate in the vertical direction along the driving rod 52 when the driving rod 52 rotates.

The moving assembly 57 comprises:

The movable frame 571 is installed at the top of the movable cylinder 55, and the movable cylinder 55 is rotatably connected with the movable frame 571. A first bevel gear 572 is installed on the outer side of the top of the driving rod 52, and a first fixed frame 573 is installed on the top of the inner side of the coating tank 2. A rotating rod 574 is installed on the first fixed frame 573, and a second bevel gear 575 is installed at one end of the rotating rod 574. The first bevel gear 572 is meshed with the second bevel gear 575. A second fixed frame 576 is provided on the side of the first fixed frame 573, and a rotating tooth 577 is installed on the second fixed frame 576. The rotating tooth 577 is rotatably connected with the second fixed frame 576, and the rotating tooth 577 is cooperatively connected with the rotating rod 574. A connecting assembly 58 is installed between the rotating tooth 577 and the movable frame 571, which is used to drive the movable frame 571 and the movable cylinder 55 to move in the vertical direction when the rotating tooth 577 rotates.

The connection assembly 58 comprises:

The rotating frame 581 is installed at one side edge of the rotating tooth 577, and hinge seats 582 are installed at both ends of the movable frame 571. A connecting rod 583 is installed between the rotating frame 581 and the hinge seat 582, and both ends of the connecting rod 583 are rotatably connected to the rotating frame 581 and the hinge seat 582.

In the present embodiment, a driving member 51 is installed at the middle of the top of the coating tank 2. The driving member 51 can be a rotary motor or a stepping motor, etc. In the present embodiment, the driving member 51 is a rotary motor. A vertically mounted driving rod 52 is fixedly installed at the output end of the driving member 51. The driving rod 52 extends into the inner side of the processing frame 3. A fixing plate 53 is fixedly installed at the bottom end of the driving rod 52. The fixing plate 53 contacts the inner bottom end of the processing frame 3. When the driving rod 52 rotates, it is convenient to drive the fixing plate 53 to rotate, so as to facilitate the turning and mixing of the materials at the inner bottom end of the processing frame 3. Scrapers 54 are installed at both ends of the fixing plate 53. When the fixing plate 53 rotates, it is convenient for the scraper 54 to scrape the materials on the inner wall of the processing frame 3, so as to facilitate the mixing operation and the use.

The moving cylinder 55 is sleeved on the outside of the driving rod 52, and a slide bar 12 is provided on the outer wall of the driving rod 52, and a slide groove 13 is provided on the inner wall of the moving cylinder 55. The slide bar 12 and the slide groove 13 are connected concavely and convexly, and the slide bar 12 and the slide groove 13 are both vertical, which are used to enable the driving rod 52 to drive the moving cylinder 55 to rotate, and facilitate the moving cylinder 55 to move in the vertical direction along the driving rod 52. A plurality of stirring plates 56 are evenly distributed on the outer wall of the moving cylinder 55, which is convenient for mixing the materials inside the processing frame 3. A rolling bearing is installed between the moving frame 571 and the outer side of the top of the moving cylinder 55, and the moving cylinder 55 can follow the driving rod 52 to rotate on the moving frame 571;

A first bevel gear 572 is fixedly installed on the outer side of the top end of the driving rod 52, the rotating rod 574 is horizontal, and a rolling bearing is installed between the rotating rod 574 and the first fixed frame 573, and the rotating rod 574 can be stably rotated on the first fixed frame 573. The driving rod 52 can drive the rotating rod 574 to rotate through the first bevel gear 572 and the second bevel gear 575. The rotating rod 574 is a worm in this embodiment, and a rolling bearing is installed between the second fixed frame 576 and the rotating tooth 577, and the rotating tooth 577 can be stably rotated on the second fixed frame 576. The rotating tooth 577 is a worm wheel in this embodiment, and the rotating tooth 577 and the rotating tooth 577 are connected to the first bevel gear 572 and the second bevel gear 575. The rotating rod 574 is connected in a cooperative manner. When the driving rod 52 rotates, it is convenient to realize the rotation operation of the rotating tooth 577 on the second fixed frame 576. The rotating tooth 577 is fixedly installed with a rotating frame 581 at the edge of the side away from the second fixed frame 576. A hinge seat 582 is installed on the movable frame 571. Both ends of the connecting rod 583 are rotatably connected to the rotating frame 581 and the hinge seat 582. When the driving rod 52 rotates, it is convenient to realize the rotation of the rotating tooth 577. The movable frame 571 can be reciprocated in the vertical direction through the rotating frame 581, the connecting rod 583 and the hinge seat 582, and the stirring plate 56 can be further changed in height during the rotation process, so as to improve the mixing effect and facilitate operation.

In one embodiment of the present invention, referring to FIG. 1 , FIG. 2 and FIG. 6 , the purification component 8 includes:

A purification box 81 is located on the side of the coating tank 2 and is fixedly installed on the bracket 1. A liquid storage tank 82 is installed on the inner side of the purification box 81. A fan 83 is installed on the top of the liquid storage tank 82. A first connecting pipe 84 is installed on the air inlet end of the fan 83. The first connecting pipe 84 is connected to the exhaust hole 7 on the coating tank 2. A second connecting pipe 85 is installed on the air outlet end of the fan 83. The second connecting pipe 85 extends into the inner side of the liquid storage tank 82. A delivery pipe 86 is installed on the bottom end of the second connecting pipe 85. The delivery pipe 86 is rotatably connected to the second connecting pipe 85. An air delivery frame 87 is installed on the bottom end of the delivery pipe 86. A plurality of first nozzles 88 are installed on one side of the air delivery frame 87. The air delivery frame 87 is provided with a plurality of nozzles and is circumferentially distributed on the outer side of the bottom end of the delivery pipe 86. An exhaust frame 89 is also installed on the top of the liquid storage tank 82. A filter screen 80 is installed on the inner side of the exhaust frame 89.

In the present embodiment, the purification box 81 is fixedly mounted on the bracket 1, and the inner side of the liquid storage tank 82 is provided with a purification liquid, which is convenient for purifying harmful substances in the flue gas. A first connecting pipe 84 is installed between the fan 83 and the exhaust hole 7, and a second connecting pipe 85 is installed at the air outlet end of the fan 83. A rolling bearing is installed between the second connecting pipe 85 and the delivery pipe 86. The cross-sectional shape of the gas delivery frame 87 is triangular, and a plurality of first nozzles 88 are evenly installed on one side of the gas delivery frame 87. When the flue gas is sprayed out through the first nozzle 88, the delivery pipe 86 can drive the gas delivery frame 87 to rotate inside the liquid storage tank 82, so that the flue gas is fully in contact with the purification liquid, which is convenient for improving the purification effect. The gas passing through the purification liquid is discharged through the exhaust frame 89, and a plurality of filter screens 80 are installed inside the exhaust frame 89. The filter screen 80 is an activated carbon filter screen in the present embodiment, which is convenient for filtering the flue gas and improving the purification effect.

In one embodiment of the present invention, referring to FIGS. 1 , 2 , 7 and 8 , the air intake assembly 9 includes:

The air intake pipe 91 is installed in the middle of the bottom end of the fixed plate 53, and a second nozzle 92 is installed on the side of the top end of the air intake pipe 91. The bottom end of the air intake pipe 91 extends out of the covering tank 2 and is installed with a third connecting pipe 93. The air intake pipe 91 is rotatably connected to the third connecting pipe 93 and the covering tank 2. An air storage tank 94 is installed on the bracket 1, and the air storage tank 94 is connected to the third connecting pipe 93.

In this embodiment, the air inlet pipe 91 is vertical and installed in the middle of the bottom end of the coating tank 2. The top of the air inlet pipe 91 is connected to the middle of the fixed plate 53. A second nozzle 92 is installed on the side of the top of the air inlet pipe 91. Rolling bearings are installed between the air inlet pipe 91 and the coating tank 2 and the third connecting pipe 93. The air inlet pipe 91 can rotate following the fixed plate 53. The third connecting pipe 93 connects the air inlet pipe 91 and the gas storage tank 94. The third connecting pipe 93 and the first connecting pipe 84 are both equipped with one-way valves to avoid gas backflow. The air inlet pipe 91 is located at the bottom end of the coating tank 2, and the exhaust hole 7 is located at the top end of the coating tank 2, which is convenient for quickly discharging the air inside the processing frame 3 to avoid oxidation reaction of the material, and the operation is convenient.

The working principle of the present invention is:

In the present invention, the material is first placed inside the processing frame 3 through the feed port 4, and then the fan 83 and the air storage tank 94 are turned on to discharge the air inside the processing frame 3, and then the heater 6 and the driving member 51 are started to achieve the heating operation on the inside of the processing frame 3, and the material is mixed and stirred through the mixing component 5. The smoke generated during the processing can enter the inside of the liquid storage tank 82 through the fan 83, and is fully purified by the purification liquid and the filter 80 to avoid direct discharge to pollute the environment. The operation is convenient, the coating effect can be effectively improved, and it is convenient to use.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims (3)

1. A carbon coating device for a sodium ion battery cathode material, comprising a bracket (1) and a carbon coating mechanism, characterized in that the carbon coating mechanism comprises:

The coating tank (2) is installed on the support (1), a processing frame (3) is arranged on the inner side of the coating tank (2), the processing frame (3) is funnel-shaped, a feed inlet (4) is formed in the top end of the coating tank (2), a mixing component (5) is arranged on the inner side of the processing frame (3) and used for carrying out mixing and stirring operation on materials on the inner side of the processing frame (3), a heater (6) is installed between the outer side of the processing frame (3) and the coating tank (2) and used for carrying out heating operation on the inner side of the processing frame (3), an exhaust hole (7) is formed in the top end of the coating tank (2), and a purifying component (8) is installed at the exhaust hole (7) and used for carrying out conveying and purifying operation on smoke generated in the coating tank (2). A discharge hole (10) is formed in the bottom end of the coating tank (2), a discharge pipe (11) is arranged at the bottom end of the discharge hole (10), and an electromagnetic valve is arranged on the discharge pipe (11); an air inlet assembly (9) is arranged in the middle of the bottom end of the cladding tank (2) and is used for conveying inert gas to the inner side of the processing frame (3);

The mixing assembly (5) comprises:

The driving piece (51) is fixedly arranged in the middle of the top end of the coating tank (2), a driving rod (52) is fixedly arranged at the output end of the driving piece (51), the driving rod (52) stretches into the inner side of the processing frame (3) and is vertical, a fixing plate (53) is arranged at the bottom end of the driving rod (52), the section of the fixing plate (53) is inverted triangle, scraping plates (54) are arranged at two ends of the fixing plate (53), the scraping plates (54) are parallel to the inner wall of the processing frame (3), a moving cylinder (55) is arranged on the outer side of the driving rod (52), a stirring plate (56) is arranged on the outer side of the moving cylinder (55), and a moving assembly (57) is further arranged between the moving cylinder (55) and the driving rod (52) and used for driving the moving cylinder (55) to reciprocate in the vertical direction along the driving rod (52) when the driving rod (52) rotates.

The moving assembly (57) comprises:

The movable frame (571) is installed at the top end of the movable barrel (55), the movable barrel (55) is rotationally connected with the movable frame (571), a first bevel gear (572) is installed on the outer side of the top end of the driving rod (52), a first fixing frame (573) is installed on the inner side top end of the cladding tank (2), a rotating rod (574) is installed on the first fixing frame (573), a second bevel gear (575) is installed at one end of the rotating rod (574), the first bevel gear (572) is in meshed connection with the second bevel gear (575), a second fixing frame (576) is arranged on the side face of the first fixing frame (573), rotating teeth (577) are installed on the second fixing frame (576) and are rotationally connected with the second fixing frame (576), the rotating teeth (577) are in matched connection with the rotating rod (574), and a connecting component (58) is installed between the rotating teeth (577) and the movable frame (571) and is used for driving the movable frame (571) to move vertically when the rotating teeth (577) rotate;

the connection assembly (58) includes:

The rotating frame (581) is arranged at the edge of one side of the rotating tooth (577), hinge bases (582) are arranged at two ends of the moving frame (571), a connecting rod (583) is arranged between the rotating frame (581) and the hinge bases (582), and two ends of the connecting rod (583) are rotationally connected with the rotating frame (581) and the hinge bases (582);

The sliding bar (12) is arranged on the outer wall of the driving rod (52), the sliding groove (13) is arranged on the inner wall of the moving cylinder (55), the sliding bar (12) is connected with the sliding groove (13) in a concave-convex mode, and the sliding bar (12) and the sliding groove (13) are vertical and are used for enabling the driving rod (52) to drive the moving cylinder (55) to rotate.

2. The carbon cladding apparatus of a sodium ion battery cathode material according to claim 1, wherein the purification assembly (8) comprises:

the purifying tank (81) is positioned on the side face of the coating tank (2) and is fixedly arranged on the support (1), a liquid storage tank (82) is arranged on the inner side of the purifying tank (81), a fan (83) is arranged at the top end of the liquid storage tank (82), a first connecting pipe (84) is arranged at the air inlet end of the fan (83), the first connecting pipe (84) is connected with an exhaust hole (7) on the coating tank (2), a second connecting pipe (85) is arranged at the air outlet end of the fan (83), the second connecting pipe (85) stretches into the inner side of the liquid storage tank (82), a conveying pipe (86) is arranged at the bottom end of the second connecting pipe (85), a conveying pipe (86) is connected with the second connecting pipe (85) in a rotating mode, a plurality of first spray heads (88) are arranged at one side of the conveying pipe (86), and are circumferentially distributed on the outer side of the bottom end of the conveying pipe (86); an exhaust frame (89) is further arranged at the top end of the liquid storage tank (82), and a filter screen (80) is arranged on the inner side of the exhaust frame (89).

3. The carbon cladding apparatus of a sodium ion battery cathode material according to claim 2, wherein the air intake assembly (9) comprises:

The air inlet pipe (91) is installed in the middle of the bottom end of the fixing plate (53), a second spray head (92) is installed on the side face of the top end of the air inlet pipe (91), the bottom end of the air inlet pipe (91) extends out of the coating tank (2) and is provided with a third connecting pipe (93), the air inlet pipe (91) is rotationally connected with the third connecting pipe (93) and the coating tank (2), an air storage tank (94) is installed on the support (1), and the air storage tank (94) is connected with the third connecting pipe (93).