Closed-loop conveying device and method based on nickel-cobalt-manganese hydroxide ternary material

Abstract

The invention belongs to the technical field of powder conveying, and particularly relates to a closed-loop conveying device and method based on a nickel-cobalt-manganese hydroxide ternary material.The closed-loop conveying device comprises two conveying systems, and each conveying system comprises a disc dryer, an accelerating chamber, a surge bin, a negative-pressure Roots blower, an air pipe and a dust remover; the dust remover comprises a cavity, a filter bag and a stock bin, the cavity is in threaded connection with the dust remover, and a sealing piece is arranged at the joint; the negative pressure Roots blower comprises an output end and an input end, the negative pressure Roots blower comprises a negative pressure Roots blower, the negative pressure Roots blower is connected with the negative pressure Roots blower, the negative pressure Roots blower is connected with the negative pressure Roots blower, the negative pressure Roots blower is connected with the negative pressure Roots blower, the negative pressure Roots blower is connected with the negative pressure Roots blower, the negative pressure Roots blower is connected with the negative pressure Roots blower, and the negative pressure Roots blower is connected with the negative pressure Roots blower. The conveying efficiency cannot be improved in a self-circulation manner, and the filter bag is often easy to block in the conveying process, so that dredging and cleaning cannot be conveniently and quickly performed.

Description

Technical Field

[0001] The present invention belongs to the technical field of powder transportation, and particularly relates to a closed-loop transportation device and method based on nickel cobalt manganese ternary material hydroxide. Background Art

[0002] In recent years, new energy has developed vigorously in China, and the transportation of new energy materials has shown an increasingly important position. At the same time, with China's increasing emphasis on environmental protection, energy conservation, and workers' health and increasingly strict supervision, an efficient, energy-saving, and environmentally friendly and safe pneumatic material transportation method has become particularly important. Moreover, when transporting materials, the filter bags used for filtration need to be cleaned frequently, and the transportation work often stops due to filter bag blockage, resulting in a significant reduction in efficiency. This phenomenon has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0003] The purpose of the present invention is to provide a closed-loop transportation device and method based on nickel cobalt manganese ternary material hydroxide to solve the problems raised in the above background art.

[0004] To solve the above technical problems, the present invention provides the following technical solutions: A closed-loop transportation device and method based on nickel cobalt manganese ternary material hydroxide, including two sets of transportation systems. Each of the two sets of transportation systems includes a tray dryer, an acceleration chamber, a buffer bin, a negative pressure Roots blower, an air duct, and a dust collector. The dust collector includes a chamber, a filter bag, and a material bin. The chamber is threadedly connected to the dust collector, and a seal is provided at the connection; the tray dryer is connected to the buffer bin through a pipeline, the buffer bin is connected to the acceleration chamber through a pipeline, the acceleration chamber is connected to the chamber of the dust collector through a pipeline, a pipeline connection is provided between the bottom of the chamber and above the material bin. The negative pressure Roots blower includes an output end and an input end. The output end of the negative pressure Roots blower is connected to the dust collector through a pipeline, and the input end of the negative pressure Roots blower is connected to the feeding end of the acceleration chamber through a pipeline. An installation ring is fixed on the inner wall of the chamber, the filter bag is bolted above the installation ring, and a counterweight ball is arranged inside. The air ducts of the two sets of transportation systems are connected to each other through pipelines.

[0005] The present invention further explains that a through hole is provided on one side of the chamber, and a rotating shaft is installed in the through hole through a bearing. A cam is fixed to the right end of the rotating shaft, and a convex disk is connected to the outside of the cam; after the rotating shaft rotates, the convex disk comes into contact with the bottom end of the filter bag.

[0006] The present invention is further described as follows. A threaded hole is provided inside the rotating shaft, and a threaded rod is threadedly connected inside the threaded hole. A hydraulic hole is provided inside the rotating shaft and the cam. A first sliding plug is slidably connected to the left inner wall of the hydraulic hole, and a second sliding plug is slidably connected to the upper part of the right inner wall. The right end of the threaded rod is fixedly connected to the first sliding plug, and a connecting rod is fixed between the outer end of the second sliding plug and the inner end of the convex disk. A limiting block is provided at the upper right end of the hydraulic hole, and hydraulic oil is filled between the first sliding plug and the second sliding plug.

[0007] The present invention is further described as follows. A scale is provided on the outer circle of the threaded rod, and the scale corresponds to the jitter intensity, and the jitter intensity is graded from one to ten.

[0008] The present invention is further described as follows. After the second sliding plug contacts the limiting block and the rotating shaft is rotated, the outer end of the convex disk contacts the inner wall of the chamber.

[0009] The present invention is further described as follows. A sliding hole is provided inside the cam, and a push rod is slidably connected to the inner wall of the sliding hole. A spring is fixed between the inner end of the push rod and the bottom of the inner wall of the sliding hole. The outer end of the push rod is arc-shaped, and in the initial state, the length extending out of the sliding hole is half of the length of the convex disk.

[0010] The present invention is further described as follows. Both the inner end of the push rod and the second sliding plug have magnetism, and the magnetic poles are opposite. In the initial state, a magnetic attraction force is generated between the push rod and the second sliding plug, and the spring is in a deformed state.

[0011] The present invention is further described as follows. The operation method includes: Step S1, the materials of the disk dryer flow into the lower buffer bin through the rotary valve; Step S2, the negative pressure Roots blower is started, and the dust collector is evacuated through the air duct to form a negative pressure inside the dust collector. At the same time, the air outlet on the right side of the negative pressure Roots blower discharges the extracted gas to the feeding end of the acceleration chamber below the disk dryer at a constant pressure; Step S3, the materials in the buffer bin are sucked into the dust collector through the lower acceleration chamber; Step S4, the nickel cobalt manganese ternary hydroxide powder is blocked and filtered by the filter bag and then flows into the lower bin, and then is transported to the next working station through the lower pipeline.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The overall of the two sets of conveying systems adopted in the present invention forms a closed-loop circuit. As long as the end face is well sealed at the interface, it can ensure that the entire system has no leakage, avoiding the serious problem of dust leakage in positive-pressure conveying in the past. In addition to the suction port of the negative-pressure Roots blower sucking air from the dust collector to form a negative pressure, the sucked air is blown into the acceleration chamber from the air outlet of the negative-pressure Roots blower, and the pneumatic forces at both ends are used to feed the material together, greatly reducing the power consumption required for feeding, avoiding the problems of insufficient suction and insufficient conveying capacity in negative-pressure conveying in the past. All the conveying pipes are lined with ceramics, avoiding the possibility of generating magnetic substances when the material contacts the metal during the feeding process, and completely isolating the external moisture, air, and sundries, ensuring the quality of the conveyed material. The negative-pressure Roots blower realizes self-circulation, preventing accidents caused by excessive pipeline pressure and improving the safety of the system. There are online filters at both ends of the negative-pressure Roots blower. When the filter bag of the dust collector is damaged, the dust is filtered by the online filter and will not enter the negative-pressure Roots blower. Moreover, through the connection of the air ducts of the two sets of conveying systems, when the negative-pressure Roots blower of one set of conveying systems is damaged or under maintenance, the negative-pressure Roots blower of the other set of conveying systems can be used as a backup to ensure that the two sets of conveying systems can operate simultaneously to improve the conveying efficiency;

[0013] By rotating the rotating shaft, the dust blocking the filter bag can be shaken off to ensure that the filter bag can carry out continuous and effective filtering work. Moreover, by the rotation of the cam, the dust in the chamber can be agitated, thereby being able to avoid the blockage of the chamber affecting the conveying work of the material and improving the conveying efficiency. The overall operation is simple and the structure is simple. Compared with disassembling the chamber to clean the filter bag, it is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0015] Figure 1 is a schematic diagram of the conveying system of the present invention;

[0016] Figure 2 is a plan view of the dust collector and the chamber of the present invention;

[0017] Figure 3 is a schematic diagram of the chamber structure of the present invention;

[0018] Figure 4 is a schematic diagram of the internal mechanism of the chamber of the present invention;

[0019] Figure 5 is a schematic diagram of the connection relationship between the rotating shaft and the cam of the present invention;

[0020] Figure 6 is a schematic diagram of the internal structure of the rotating shaft and the cam of the present invention;

[0021] Figure 7 are the process schematic diagrams of Embodiment 3 and Embodiment 4 of the present invention;

[0022] In the figure: 1, chamber; 11, placement ring; 12, rotating shaft; 13, cam; 14, convex disk; 15, threaded rod; 16, hydraulic hole; 161, first sliding plug; 162, second sliding plug; 17, sliding hole; 18, ejector rod; 19, spring; 2, filter bag; 21, counterweight ball; 3, disk dryer; 4, acceleration chamber; 5, buffer bin; 6, negative pressure Roots blower; 7, air duct; 8, dust collector; 9, storage bin. Specific Embodiments

[0023] The technical solutions of the present invention will be further described in detail and non - restrictively below in conjunction with the preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0024] Please refer to Figures 1-7 , the present invention provides a technical solution: a closed - loop conveying device and method based on nickel - cobalt - manganese ternary hydroxide material, including two sets of conveying systems. Both sets of conveying systems include a disk dryer 3, an acceleration chamber 4, a buffer bin 5, a negative pressure Roots blower 6, an air duct 7, and a dust collector 8. The dust collector 8 includes a chamber 1, a filter bag 2, and a storage bin 9. The chamber 1 is thread - connected to the dust collector 8, and a seal is provided at the connection;

[0025] The disk dryer 3 is connected to the buffer bin 5 through a pipeline, the buffer bin 5 is connected to the acceleration chamber 4 through a pipeline, the acceleration chamber 4 is connected to the chamber 1 of the dust collector 8 through a pipeline, and there is a pipeline connection between the bottom of the chamber 1 and above the storage bin 9. The negative pressure Roots blower 6 includes an output end and an input end. The output end of the negative pressure Roots blower 6 is connected to the dust collector 8 through a pipeline, and the input end of the negative pressure Roots blower 6 is connected to the feeding end of the acceleration chamber 4 through a pipeline. An installation ring 11 is fixed on the inner wall of the chamber 1, the filter bag 2 is bolt - installed above the installation ring 11, and a counterweight ball 21 is arranged inside. The air ducts 7 of the two sets of conveying systems are connected to each other through pipelines;

[0026] The materials of the disk dryer 3 flow into the lower buffer bin 5 through a rotary valve. The negative pressure Roots blower 6 is started, and air is extracted from the dust collector 8 through the air duct 7 to form sufficient negative pressure inside the dust collector 8. Under the action of the negative pressure, the feeding pipeline of the dust collector 8 continuously sucks the materials in the buffer bin 5 into the dust collector 8 through the lower acceleration chamber 4. The nickel-cobalt-manganese ternary hydroxide dust is blocked and filtered by the filter bag 2 and then flows into the lower bin 9, and then is transported to the next working station through the lower pipeline. At the same time, the right air outlet of the negative pressure Roots blower 6 discharges the extracted gas to the feeding end of the lower acceleration chamber 4 of the disk dryer 3 at a constant pressure continuously to promote the continuous flow of the materials along the pipeline to the dust collector;

[0027] The overall of the two conveying systems forms a closed-loop circuit. As long as the end faces at the interfaces are well sealed, the entire system can be ensured to have no leakage, avoiding the serious problem of dust leakage in the previous positive pressure conveying. In addition to the negative pressure Roots blower 6 sucking air from the dust collector 8 to form negative pressure, the extracted air is blown into the acceleration chamber 4 from the air outlet of the negative pressure Roots blower 6, and the pneumatic forces at both ends feed the materials together, greatly reducing the power consumption required for feeding, avoiding the problems of insufficient suction and insufficient conveying capacity in the previous negative pressure conveying. All the conveying pipelines are lined with ceramics, avoiding the possibility of magnetic substances generated by the contact between the materials and metals during the feeding process, and completely isolating the external moisture, air and sundries, ensuring the quality of the conveyed materials, realizing the self-circulation of the negative pressure Roots blower 6, preventing accidents caused by excessive pipeline pressure, and improving the safety of the system. There are online filters at both ends of the negative pressure Roots blower 6. When the filter bag 2 of the dust collector 8 is damaged, the dust is filtered by the online filter and will not enter the negative pressure Roots blower 6. And through the connection of the air ducts 7 of the two conveying systems, when the negative pressure Roots blower 6 of one of the conveying systems is damaged or under maintenance, the negative pressure Roots blower 6 of the other conveying system can be used as a backup to ensure that the two conveying systems can operate simultaneously to improve the conveying efficiency;

[0028] When the filter bag 2 is damaged, the operator only needs to unscrew the chamber 1 from the dust collector 8, and then remove the filter bag 2 by screwing the bolts, which is convenient for quickly replacing the filter bag 2, with convenient and efficient operation, improving the output efficiency of the nickel-cobalt-manganese ternary hydroxide dust. And a counterweight ball 21 is arranged inside the filter bag 2, which can keep the filter bag 2 stable and prevent the phenomenon of turning outwards, improving the filtering efficiency, so as to ensure the conveying quality of the nickel-cobalt-manganese ternary hydroxide dust.

[0029] A through hole is opened on one side of the chamber 1, and a rotating shaft 12 is installed in the through hole through a bearing. A cam 13 is fixed to the right end of the rotating shaft 12, and a convex disk 14 is connected to the outside of the cam 13;

[0030] After the rotating shaft 12 rotates, the convex disk 14 comes into contact with the bottom end of the filter bag 2;

[0031] When the filter bag 2 becomes blocked or the chamber 1 becomes blocked, the operator quickly rotates the rotating shaft 12, causing the cam 13 to rotate, thereby driving the convex disk 14 to rotate around its center. When the convex disk 14 rotates to the bottom end of the filter bag 2, it comes into contact with the filter bag 2, thereby lifting the filter bag 2. At the same time, the counterweight ball 21 inside the filter bag 2 is lifted. After that, the convex disk 14 quickly disengages from the filter bag 2, and the weight generated by the counterweight ball 21 presses the filter bag 2 to quickly shake downward, thereby shaking off the blocked dust in the filter bag 2 to ensure that the filter bag 2 can carry out continuous and effective filtering work. And by rotating the cam 13, the dust in the chamber 1 can be agitated, thereby avoiding the blockage of the chamber 1 from affecting the material conveying work, improving the conveying efficiency. The overall operation is simple and the structure is simple. Compared with disassembling the chamber 1 to clean the filter bag 2, it is more convenient.

[0032] A threaded hole is provided inside the rotating shaft 12, and a threaded rod 15 is threadedly connected inside the threaded hole. A hydraulic hole 16 is provided inside the rotating shaft 12 and the cam 13. A first sliding plug 161 is slidably connected to the left inner wall of the hydraulic hole 16, and a second sliding plug 162 is slidably connected to the upper part of the right inner wall.

[0033] The first sliding plug 161 is fixedly connected to the right end of the threaded rod 15. A connecting rod is fixed between the outer end of the second sliding plug 162 and the inner end of the convex disk 14. A limiting block is provided at the upper right end of the hydraulic hole 16, and hydraulic oil is filled between the first sliding plug 161 and the second sliding plug 162.

[0034] Embodiment 1:

[0035] After the operator rotates the rotating shaft 12 one full turn, the filter bag 2 shakes once but is still blocked. At this time, the operator turns the threaded rod 15, causing it to rotate and move to the right along the threaded hole, thereby driving the first sliding plug 161 to slide to the right along the inner wall of the hydraulic hole 16. The hydraulic oil on the right side of the first sliding plug 161 is squeezed, thereby pushing the second sliding plug 162 to move upward and driving the convex disk 14 to move outward and expand through the connecting rod. The height when it lifts the filter bag 2 and the counterweight ball 21 can be increased, so that the shaking intensity of the filter bag 2 moving downward is increased to improve the shaking intensity, enabling the filter bag 2 to be fully unclogged. And by increasing the shaking intensity, the filter bag 2 can be unclogged once or twice, avoiding damage to the filter bag 2 caused by too many shaking times, thereby reducing the service life and the replacement cost of the filter bag 2.

[0036] A scale is provided on the outer ring of the threaded rod 15, and the scale corresponds to the shaking intensity, and the shaking intensity is graded from one to ten.

[0037] The operator controls the moving distance of the first sliding plug 161 and the moving distance of the second sliding plug 162 by rotating the number of turns of the threaded rod 15, thereby controlling the distance of the outward expansion of the convex disk 14. The jitter intensity can be accurately controlled, which can not only quickly dredge the filter bag 2 to improve the dust conveying efficiency, but also further ensure the service life of the filter bag 2.

[0038] After the second sliding plug 162 contacts the limit block and the rotating shaft 12 is rotated, the outer end of the convex disk 14 contacts the inner wall of the chamber 1;

[0039] Embodiment 2:

[0040] After cleaning the filter bag 2 multiple times, the operator can rotate the threaded rod 15 to the limit position, so that the second sliding plug 162 contacts the limit block. At this time, the convex disk 14 expands outward to the limit position, and the jitter intensity reaches the maximum. The blocked dust can be completely cleaned by one jitter, and at this time, the dust adhered to the inner wall of the chamber 1 can also be scraped off, so as to further avoid the blockage of the chamber 1, thereby relatively further improving the dust conveying efficiency.

[0041] A sliding hole 17 is arranged inside the cam 13, a ejector rod 18 is slidably connected to the inner wall of the sliding hole 17, and a spring 19 is fixed between the inner end of the ejector rod 18 and the bottom of the inner wall of the sliding hole 17;

[0042] The outer end of the ejector rod 18 is arc-shaped, and the length extending out of the sliding hole 17 in the initial state is half of the length of the convex disk 14;

[0043] During the process of rotating the rotating shaft 12 for one full turn, the convex disk 14 first performs a large-scale jacking on the bottom end of the filter bag 2, and then the ejector rod 18 contacts the bottom end of the filter bag 2 to perform a small-scale jacking on the filter bag 2. The double jacking can, in the case of not serious blockage, dredge the filter bag 2 at one time and improve the dredging efficiency;

[0044] When the outer end of the ejector rod 18 contacts the bottom end of the filter bag 2, the weight generated by the counterweight ball 21 inside the filter bag 2 presses the ejector rod 18, causing the spring 19 to deform slightly, so as to be able to buffer the filter bag 2 relatively, avoid the too high intensity under double jacking resulting in rapid damage to the filter bag 2, and thus be able to further improve the service life of the filter bag 2.

[0045] The inner end of the ejector rod 18 and the second sliding plug 162 are both magnetic, and the magnetic poles are opposite. In the initial state of the ejector rod 18, a magnetic attraction force is generated between the ejector rod 18 and the second sliding plug 162, and the spring 19 is in a deformed state;

[0046] Embodiment 3:

[0047] The clogging of the filter bag 2 is not serious, and the filter bag 2 has been dredged without rotating the threaded rod 15. At this time, in the initial state of the ejector rod 18, the magnetic suction force generated between the sliding plug two 162 and the inner end of the ejector rod 18 can keep the ejector rod 18 in the initial position, and the distance extended out of the sliding hole 17 is small, so as to accurately control the shaking intensity and prevent damage to the filter bag 2;

[0048] Embodiment 4:

[0049] The clogging of the filter bag 2 is relatively serious. The threaded rod 15 has been rotated to the limit position, and the sliding plug two 162 has reached the limit position and is restricted by the limit block. At the same time, the magnetic suction force between the sliding plug two 162 and the ejector rod 18 weakens, and the reaction force generated by the spring 19 pushes the ejector rod 18 to move outward. The ejector rod 18 fully extends. At this time, when double-lifting the bottom end of the filter bag 2, the filter bag 2 can be fully dredged through one shaking, can be quickly dredged, and will not cause excessive damage to the filter bag 2, thereby protecting the filter bag 2.

[0050] The operation method includes:

[0051] Step S1: The materials of the disk dryer 3 flow into the lower buffer bin 5 through the rotary valve;

[0052] Step S2: The negative pressure Roots blower 6 is started, and the dust collector 8 is evacuated through the air duct 7 to form a negative pressure inside the dust collector 8. At the same time, the right air outlet of the negative pressure Roots blower 6 continuously discharges the extracted gas to the feeding end of the acceleration chamber 4 below the disk dryer 3 at a constant pressure;

[0053] Step S3: The materials in the buffer bin 5 are sucked into the dust collector 8 through the lower acceleration chamber 4;

[0054] Step S4: The nickel-cobalt-manganese ternary hydroxide dust is blocked and filtered by the filter bag 2 and then flows into the lower bin 9, and then is transported to the next working station through the lower pipeline.

[0055] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A closed-loop conveying device based on nickel cobalt manganese ternary hydroxide material, comprising two sets of conveying systems, characterized in that: Both of the two conveying systems include a disk dryer (3), an acceleration chamber (4), a buffer bin (5), a vacuum Roots blower (6), an air duct (7), and a dust collector (8). The dust collector (8) includes a chamber (1), filter bags (2), and a bin (9). The chamber (1) is threadedly connected to the dust collector (8), and a seal is provided at the connection. The disk dryer (3) is connected to the buffer bin (5) through a pipeline. The buffer bin (5) is connected to the acceleration chamber (4) through a pipeline. The acceleration chamber (4) is connected to the chamber (1) of the dust collector (8) through a pipeline. There is a pipeline connection between the bottom of the chamber (1) and above the bin (9). The vacuum Roots blower (6) includes an output end and an input end. The output end of the vacuum Roots blower (6) is connected to the dust collector (8) through a pipeline. The input end of the vacuum Roots blower (6) is connected to the feeding end of the acceleration chamber (4) through a pipeline. An installation ring (11) is fixed to the inner wall of the chamber (1). The filter bags (2) are bolted above the installation ring (11) and are internally provided with counterweight balls (21). The air ducts (7) of the two conveying systems are connected to each other through a pipeline.

2. The closed-loop conveying device based on nickel cobalt manganese ternary hydroxide material according to claim 1, wherein: A through hole is provided on one side of the chamber (1), and a rotating shaft (12) is installed in the through hole by means of a bearing. A cam (13) is fixed to the right end of the rotating shaft (12). The outer side of the cam (13) is connected to a convex disk (14). After the rotating shaft (12) rotates, the convex disk (14) comes into contact with the bottom end of the filter bag (2).

3. The closed-loop conveying device based on nickel cobalt manganese ternary hydroxide material according to claim 2, wherein: A threaded hole is provided inside the rotating shaft (12), and a threaded rod (15) is threadedly connected inside the threaded hole. Hydraulic holes (16) are provided inside the rotating shaft (12) and the cam (13). A first sliding plug (161) is slidably connected to the left inner wall of the hydraulic hole (16), and a second sliding plug (162) is slidably connected to the upper right inner wall. The first sliding plug (161) is fixedly connected to the right end of the threaded rod (15). A connecting rod is fixed between the outer end of the second sliding plug (162) and the inner end of the convex disk (14). A limiting block is provided at the upper right side of the hydraulic hole (16). Hydraulic oil is filled between the first sliding plug (161) and the second sliding plug (162).

4. The closed-loop conveying device based on nickel cobalt manganese ternary material according to claim 3, characterized in that: A scale is provided on the outer circumference of the threaded rod (15), and the scale corresponds to the shaking intensity, which is graded from one to ten.

5. The closed-loop conveying device based on nickel cobalt manganese ternary hydroxide material according to claim 4, characterized in that: After the second sliding plug (162) contacts the limiting block and the rotating shaft (12) is rotated, the outer end of the convex disk (14) comes into contact with the inner wall of the chamber (1).

6. The closed-loop conveying device and method based on nickel cobalt manganese ternary hydroxide material according to claim 5, characterized in that: A sliding hole (17) is provided inside the cam (13), and a push rod (18) is slidably connected to the inner wall of the sliding hole (17). A spring (19) is fixed between the inner end of the push rod (18) and the bottom of the inner wall of the sliding hole (17). The outer end of the push rod (18) is arc-shaped, and in the initial state, the length extending out of the sliding hole (17) is half of the length of the convex disk (14).

7. The closed-loop conveying device and method based on nickel cobalt manganese ternary hydroxide material according to claim 6, wherein: The inner end of the ejector rod (18) and the second sliding plug (162) both have magnetism, and their magnetic poles are opposite. In the initial state of the ejector rod (18), a magnetic suction force is generated between the ejector rod (18) and the second sliding plug (162), and the spring (19) is in a deformed state.

8. The operating method of a closed-loop conveying device based on nickel cobalt manganese ternary hydroxide material, using the conveying system described in claim 1, is characterized in that: The operation method includes: Step S1: The materials of the disk dryer (3) flow into the lower buffer bin (5) through the rotary valve. Step S2: The negative pressure Roots blower (6) is started, and the dust collector (8) is evacuated through the air duct (7) to form a negative pressure inside the dust collector (8). At the same time, the gas pumped away from the right air outlet of the negative pressure Roots blower (6) is continuously discharged to the feeding end of the acceleration chamber (4) below the disk dryer (3) at a constant pressure. Step S3: The materials in the buffer bin (5) are sucked into the dust collector (8) through the lower acceleration chamber (4). Step S4: The nickel cobalt manganese ternary hydroxide dust is blocked and filtered by the filter bag (2) and then flows into the lower bin (9), and then is transported to the next working station through the lower pipeline.

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