Raw material filtering device for lithium iron phosphate production

Abstract

The utility model discloses a raw material filtering device for lithium iron phosphate production, which comprises a mounting frame and a vibrating screen, the vibrating screen is mounted on the inner side of the mounting frame, a ton bag feeding station is mounted on the top surface of the mounting frame, and a feeding cylinder is arranged below the ton bag feeding station and above the vibrating screen. The beneficial effects are that the vibrating screen, the feeding cylinder and the electric cylinder are adopted, lithium iron phosphate raw materials enter the feeding cylinder after being fed through the ton bag feeding station, the servo motor drives the worm to rotate, then the worm gear is driven to rotate, the rotating shaft and the rotating plate are driven to rotate, and after the rotating plate rotates until the discharging hole coincides with the bottom hole, the discharging hole is opened. A lithium iron phosphate raw material enters the vibrating screen to be vibrated and filtered, after filtering is completed, a worker can unlock a top cover of the vibrating screen, start an electric cylinder for shortening, pull a cylinder frame and a feeding cylinder to move upwards through shortening of the electric cylinder, then drive the top cover of the vibrating screen to move upwards through a connecting cloth cylinder and open the vibrating screen, the worker can conveniently conduct cleaning, and the operation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium iron phosphate production, in particular to a raw material filtering device for lithium iron phosphate production. Background Art

[0002] Lithium iron phosphate (LiFePO4) is increasingly favored in the power battery and energy storage sectors due to its low cost, high safety, and excellent cycle performance. The feeding process, a crucial step in the entire LiFePO4 production process, requires accurate feeding quality and powder uniformity, which directly impacts the accuracy of the subsequent LiFePO4 mixing ratio. Furthermore, raw materials in ton bags are prone to agglomeration and lumping due to improper placement (due to compression or prolonged production). Direct feeding prevents these agglomerated and aggregated powders from dispersing, leading to blockage in the subsequent sanding process and severely impacting LiFePO4 production efficiency.

[0003] After searching, it was found that the application number is CN202222378867.3, and the name is a lithium iron phosphate feeder. The application proposes a method of filtering by means of a vibration motor in combination with a screening net. However, the application makes it difficult to quickly remove the structure located above the screening net, resulting in inconvenience in subsequent cleaning. It is also difficult to control the amount of feed, which easily leads to accumulation of raw materials and affects the screening and filtration efficiency. Further improvements can be made.

[0004] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the present invention provides a raw material filtering device for lithium iron phosphate production, which has the advantage of being more convenient to use, thereby solving the problems in the above-mentioned background technology.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned advantage of more convenient use, the specific technical solutions adopted by the present invention are as follows:

[0009] A raw material filtering device for lithium iron phosphate production, comprising a mounting frame and a vibrating screen, wherein the vibrating screen is mounted on the inner side of the mounting frame, and a ton bag feeding station is mounted on the top surface of the mounting frame, and a feeding barrel is arranged below the ton bag feeding station and above the vibrating screen, the outer wall of the feeding barrel is fixedly mounted with a barrel rack, and a servo motor is fixedly mounted on one side surface of the top of the feeding barrel, and a rotating shaft is arranged inside the feeding barrel, a worm gear is fixedly mounted on the top of the rotating shaft, and a rotating plate is fixedly mounted on the bottom surface of the rotating shaft, and a feeding hole is opened on the surface of the rotating plate, and the bottom surface of the feeding barrel is fixedly mounted with a worm gear. A bottom plate is fixedly installed, and a bottom hole is opened on the surface of the bottom plate. The inside of the loading barrel is fixedly connected to a bearing through a bracket. The rotating shaft passes through the bearing and is rotatably connected to the bearing. A worm is installed at the output end of the servo motor, and the worm is engaged with the worm wheel. A top cover is installed on the top surface of the vibrating screen, and the top opening of the top cover is connected to the bottom opening of the loading barrel through a connecting cloth cylinder. The inner surface of the mounting frame is fixedly installed with a mounting plate and an end plate from top to bottom, and an electric cylinder is fixedly installed on the bottom surface of the mounting plate, and the bottom surface of the moving rod of the electric cylinder is fixedly connected to the top surface of the other end of the barrel frame.

[0010] Furthermore, the feed holes and the bottom holes are both fan-shaped, and the angles between the feed holes and the bottom holes are the same, and two groups of the feed holes and the bottom holes are arranged correspondingly.

[0011] Furthermore, the bottom surface of the rotating plate is in sliding contact with the top surface of the bottom plate, and the edge of the rotating plate is in sliding contact with the inner wall of the bottom opening of the loading barrel.

[0012] Furthermore, a guide rod is fixedly installed between the end plates, and the guide rod passes through one end of the cartridge frame and is slidably connected to the other end of the cartridge frame.

[0013] Furthermore, the maximum tensile stress of the connecting cloth tube is greater than the gravity of the top cover of the vibrating screen, and the two ends of the connecting cloth tube are fixedly connected to the bottom opening of the upper barrel and the top opening of the top cover of the vibrating screen through throat clamps.

[0014] Furthermore, the rotating shaft is coaxially arranged with the loading barrel, and the rotating shaft is coaxially arranged with the worm gear.

[0015] Furthermore, the bracket is a cross-shaped structure, and the bracket is a metal round rod.

[0016] Furthermore, the inner wall of the loading barrel is polished.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a raw material filtering device for lithium iron phosphate production, which has the following beneficial effects:

[0019] (1) The utility model adopts a vibrating screen, a feeding barrel and an electric cylinder. The lithium iron phosphate raw material enters the feeding barrel after being fed through the ton bag feeding station. The servo motor drives the worm to rotate, and then drives the worm wheel to rotate, and drives the rotating shaft and the rotating plate to rotate. After the rotating plate rotates until the feeding hole and the bottom hole coincide, the lithium iron phosphate raw material enters the vibrating screen for vibration filtration. After the filtration is completed, the staff can unlock the top cover of the vibrating screen and start the electric cylinder to shorten. The electric cylinder shortens and pulls the drum frame and the feeding barrel upward, and then drives the top cover of the vibrating screen upward by connecting the cloth cylinder, opening the vibrating screen, making it convenient for the staff to clean, and improving the convenience of operation.

[0020] (2) The utility model adopts a rotating plate and a bottom plate. The surface of the rotating plate and the surface of the bottom plate are respectively provided with fan-shaped feeding holes and bottom holes. When feeding, the feeding holes and the bottom holes are aligned, and the raw materials enter the vibrating screen. When the vibrating screen is full, the staff can start the servo motor to drive the worm to rotate in the opposite direction, and then drive the worm wheel and the rotating plate to rotate in the opposite direction, so that the feeding hole and the bottom hole are completely misaligned, and the bottom hole can be closed to avoid further feeding, which is convenient for the staff to control the feeding amount and further improves the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a structural diagram of a raw material filtering device for lithium iron phosphate production proposed by the utility model;

[0023] Figure 2 It is a structural diagram of the rotating plate proposed by the utility model;

[0024] Figure 3 This is an enlarged view of node A of a raw material filtering device for lithium iron phosphate production proposed by the present invention;

[0025] Figure 4 It is a structural schematic diagram of the base plate proposed by the utility model.

[0026] In the picture:

[0027] 1. Mounting frame; 2. Vibrating screen; 3. Loading drum; 4. Connecting cloth drum; 5. Servo motor; 6. Worm; 7. Worm gear; 8. Bracket; 9. Bearing; 10. Rotating shaft; 11. Drum rack; 12. End plate; 13. Guide rod; 14. Mounting plate; 15. Electric cylinder; 16. Ton bag feeding station; 17. Turn plate; 18. Feeding hole; 19. Bottom plate; 20. Bottom hole. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the present utility model, a raw material filtering device for lithium iron phosphate production is provided.

[0030] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figure 1-4 As shown, according to an embodiment of the present invention, a raw material filtering device for lithium iron phosphate production includes a mounting frame 1 and a vibrating screen 2, the vibrating screen 2 is installed inside the mounting frame 1, and a ton bag feeding station 16 is installed on the top surface of the mounting frame 1, which is a common structure in this field, and a feeding barrel 3 is provided below the ton bag feeding station 16 and above the vibrating screen 2, the outer wall of the feeding barrel 3 is fixedly installed with a barrel frame 11, and a servo motor 5 is fixedly installed on one side surface of the top of the feeding barrel 3, and a rotating shaft 10 is provided inside the feeding barrel 3, a worm gear 7 is fixedly installed on the top of the rotating shaft 10, and a rotating plate 17 is fixedly installed on the bottom surface of the rotating shaft 10, and a feeding hole 18 is opened on the surface of the rotating plate 17, a bottom plate 19 is fixedly installed on the bottom surface of the feeding barrel 3, and a bottom hole 20 is opened on the surface of the bottom plate 19, the inside of the feeding barrel 3 is fixedly connected to a bearing 9 through a bracket 8, the rotating shaft 10 passes through the bearing 9 and is rotatably connected to the bearing 9, a worm 6 is installed at the output end of the servo motor 5, and the worm 6 is meshed with the worm gear 7, which is a common driving structure, and the vibration The top surface of the screen 2 is equipped with a top cover, which is a common structure in this field, and the top opening of the top cover is connected to the bottom opening of the upper barrel 3 through the connecting cloth tube 4. The inner surface of the mounting frame 1 is fixedly installed with a mounting plate 14 and an end plate 12 from top to bottom, and the bottom surface of the mounting plate 14 is fixedly installed with an electric cylinder 15, and the bottom surface of the moving rod of the electric cylinder 15 is fixedly connected to the top surface of the other end of the barrel frame 11. The lithium iron phosphate raw material enters the upper barrel 3 after being fed through the ton bag feeding station 16, and the servo motor 5 drives the worm 6 to rotate, thereby driving The worm gear 7 rotates, driving the rotating shaft 10 and the rotating plate 17 to rotate. After the rotating plate 17 rotates until the discharge hole 18 coincides with the bottom hole 20, the lithium iron phosphate raw material enters the vibrating screen 2 for vibration filtration. After the filtration is completed, the staff can unlock the top cover of the vibrating screen 2 and start the electric cylinder 15 to shorten. The electric cylinder 15 shortens and pulls the drum frame 11 and the loading drum 3 upward, and then drives the top cover of the vibrating screen 2 to move upward through the connecting cloth drum 4, opening the vibrating screen 2, making it convenient for the staff to clean, and improving the convenience of operation.

[0031] In one embodiment, the feed hole 18 and the bottom hole 20 are both fan-shaped, and the angles between the feed hole 18 and the bottom hole 20 are the same, and two groups of feed holes 18 and bottom holes 20 are arranged correspondingly. When feeding, the feed hole 18 and the bottom hole 20 are aligned, and the raw materials enter the vibrating screen 2. When the vibrating screen 2 is full, the staff can start the servo motor 5 to drive the worm 6 to rotate in the opposite direction, and then drive the worm wheel 7 and the turn plate 17 to rotate in the opposite direction, so that the feed hole 18 and the bottom hole 20 are completely misaligned, and the bottom hole 20 can be closed to avoid further feeding, which is convenient for the staff to control the feeding amount and further improves the convenience of use.

[0032] In one embodiment, the bottom surface of the rotating plate 17 slides against the top surface of the bottom plate 19, and the edge of the rotating plate 17 slides against the inner wall of the bottom opening of the loading barrel 3 to prevent leakage of raw materials when no material is added.

[0033] In one embodiment, a guide rod 13 is fixedly installed between the end plates 12, and the guide rod 13 passes through one end of the drum frame 11 and is slidably connected to one end of the drum frame 11. The guide rod 13 guides the movement of the drum frame 11 and further guides the lifting and lowering of the loading drum 3.

[0034] In one embodiment, the maximum tensile stress of the connecting cloth tube 4 is greater than the gravity of the top cover of the vibrating screen 2, thereby preventing the connecting cloth tube 4 from breaking, and the two ends of the connecting cloth tube 4 are fixedly connected to the bottom of the upper barrel 3 and the top cover of the vibrating screen 2 through throat clamps respectively. The connecting cloth tube 4 prevents the upper barrel 3 from vibrating with the vibrating screen 2, thereby improving the stability of loading.

[0035] In one embodiment, the rotating shaft 10 is coaxially arranged with the loading barrel 3 , and the rotating shaft 10 is coaxially arranged with the worm gear 7 , thereby improving the stability of the rotation.

[0036] In one embodiment, the support 8 is a cross-shaped structure, and the support 8 is a metal round rod to facilitate the falling of the raw materials.

[0037] In one embodiment, the inner wall of the loading barrel 3 is polished to reduce raw material residue.

[0038] Working principle:

[0039] The lithium iron phosphate raw material is fed into the feeding barrel 3 after passing through the ton bag feeding station 16. The servo motor 5 drives the worm 6 to rotate, and then drives the worm wheel 7 to rotate, and drives the rotating shaft 10 and the rotating plate 17 to rotate. After the rotating plate 17 rotates until the discharge hole 18 coincides with the bottom hole 20, the lithium iron phosphate raw material enters the vibrating screen 2 for vibration filtration. After the filtration is completed, the staff can unlock the top cover of the vibrating screen 2 and start the electric cylinder 15 to shorten. The electric cylinder 15 shortens and pulls the drum frame 11 and the feeding barrel 3 upward, and then drives the top cover of the vibrating screen 2 to move upward through the connecting cloth cylinder 4, and opens the vibrating screen 2 for convenience. The staff cleans it, which improves the convenience of operation. At the same time, fan-shaped feeding holes 18 and bottom holes 20 are respectively opened on the surface of the rotating plate 17 and the surface of the bottom plate 19. When feeding, the feeding hole 18 and the bottom hole 20 are aligned, and the raw materials enter the vibrating screen 2. When the vibrating screen 2 is full, the staff can start the servo motor 5 to drive the worm 6 to rotate in the opposite direction, and then drive the worm wheel 7 and the rotating plate 17 to rotate in the opposite direction, so that the feeding hole 18 and the bottom hole 20 are completely misaligned, and the bottom hole 20 can be closed to avoid further feeding, which is convenient for the staff to control the feeding amount and further improves the convenience of use.

[0040] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A raw material filtering device for lithium iron phosphate production, characterized in that: The invention comprises a mounting frame (1) and a vibrating screen (2), wherein the vibrating screen (2) is mounted on the inner side of the mounting frame (1), and a ton bag feeding station (16) is mounted on the top surface of the mounting frame (1), and a feeding barrel (3) is arranged below the ton bag feeding station (16) and above the vibrating screen (2), wherein a barrel rack (11) is fixedly mounted on the outer wall of the feeding barrel (3), and a servo motor (5) is fixedly mounted on one side surface of the top of the feeding barrel (3), and a rotating shaft (10) is arranged inside the feeding barrel (3), a worm gear (7) is fixedly mounted on the top of the rotating shaft (10), and a rotating plate (17) is fixedly mounted on the bottom surface of the rotating shaft (10), and a feeding hole (18) is provided on the surface of the rotating plate (17), and a bottom plate (19) is fixedly mounted on the bottom surface of the feeding barrel (3) , and a bottom hole (20) is opened on the surface of the bottom plate (19), the interior of the upper barrel (3) is fixedly connected to a bearing (9) through a bracket (8), the rotating shaft (10) passes through the bearing (9) and is rotatably connected to the bearing (9), a worm (6) is installed at the output end of the servo motor (5), and the worm (6) is engaged with the worm wheel (7), the top surface of the vibrating screen (2) is installed with a top cover, and the top opening of the top cover is connected to the bottom opening of the upper barrel (3) through the connecting cloth barrel (4), the inner surface of the mounting frame (1) is fixedly installed with a mounting plate (14) and an end plate (12) from top to bottom, and an electric cylinder (15) is fixedly installed on the bottom surface of the mounting plate (14), and the bottom surface of the moving rod of the electric cylinder (15) is fixedly connected to the top surface of the other end of the barrel frame (11).

2. A raw material filtering device for lithium iron phosphate production according to claim 1, characterized in that: The feed holes (18) and the bottom holes (20) are both fan-shaped, and the included angles of the feed holes (18) and the bottom holes (20) are the same, and two groups of the feed holes (18) and the bottom holes (20) are arranged correspondingly.

3. A raw material filtering device for lithium iron phosphate production according to claim 1, characterized in that: The bottom surface of the rotating plate (17) is in sliding contact with the top surface of the bottom plate (19), and the edge of the rotating plate (17) is in sliding contact with the inner wall of the bottom opening of the loading barrel (3).

4. The raw material filtering device for lithium iron phosphate production according to claim 1, characterized in that: A guide rod (13) is fixedly installed between the end plates (12), and the guide rod (13) passes through one end of the cartridge rack (11) and is slidably connected to one end of the cartridge rack (11).

5. The raw material filtering device for lithium iron phosphate production according to claim 1, characterized in that: The maximum tensile stress of the connecting cloth cylinder (4) is greater than the weight of the top cover of the vibrating screen (2), and the two ends of the connecting cloth cylinder (4) are fixedly connected to the bottom opening of the upper barrel (3) and the top opening of the top cover of the vibrating screen (2) through throat hoops.

6. The raw material filtering device for lithium iron phosphate production according to claim 1, characterized in that: The rotating shaft (10) is coaxially arranged with the loading cylinder (3), and the rotating shaft (10) is coaxially arranged with the worm gear (7).

7. The raw material filtering device for lithium iron phosphate production according to claim 1, characterized in that: The bracket (8) is a cross-shaped structure, and the bracket (8) is a metal round rod.

8. The raw material filtering device for lithium iron phosphate production according to claim 1, characterized in that: The inner wall of the loading cylinder (3) is polished.

Images