Lithium iron phosphate battery raw material storage tank

Abstract

The utility model belongs to the field of drying and storage of battery raw materials, and particularly relates to a lithium iron phosphate battery raw material storage tank which comprises a material storage tank, a heater, a dust falling structure and a stirring structure, raw materials can be attached to and accumulated on the inner wall of the material storage tank in the stirring and drying process, and when the accumulation thickness exceeds a gap between an inner wall scraping thorn and the inner wall of the material storage tank, the dust falling structure can fall off. The tips of the scraping thorns on the inner wall can scrape off raw materials attached to the inner wall of the storage tank, the multiple layers of dust falling nets are arranged in a stacked mode, when rising raw material particles pass through all the layers of net holes, large particles can be intercepted by the lower layer of dust falling net, and small particles continue to rise along with airflow and are intercepted by the upper layer of dust falling net step by step. The risk that raw material particles are discharged into the working environment and sucked by workers is avoided, the sharp ends of the net scraping thorns hit meshes of the dust falling net, so that the dust falling net vibrates, the raw material particles on the dust falling net are shaken off into the material storage tank, and waste of raw materials caused by escaping of the raw material particles is prevented.

Description

A lithium iron phosphate battery raw material storage tank Technical Field

[0001] This utility model belongs to the technical field, and in particular relates to a storage tank for lithium iron phosphate battery raw materials. Background Technology

[0002] In the manufacturing process of lithium iron phosphate batteries, the raw materials are stored in a storage tank for later use. The tank is heated by a heating device to ensure that the raw materials inside the tank are always in a dry state. To improve the drying effect, a stirring device is usually installed inside the tank to ensure that the raw materials are heated evenly. However, during the drying process, the raw materials tend to adhere to the inner wall of the tank and gradually accumulate. As the accumulation thickness increases, it forms a heat insulation layer that hinders heat transfer, leading to an increase in the energy consumption required for drying. At the same time, during the stirring process, raw material particles are easily blown up by the airflow, forming dust. These fine particles escape through the exhaust vents, not only wasting raw materials and increasing production costs, but also polluting the working environment. When the raw material particles floating in the air are inhaled by workers, they can easily cause respiratory diseases and pose a significant risk to the health of the workers. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] This utility model provides a lithium iron phosphate battery raw material storage tank to solve the following problems.

[0005] 1. When drying raw materials inside a storage tank, the raw materials tend to stick to the inner wall of the tank and gradually accumulate. As the thickness of the accumulation increases, it forms an insulating layer that hinders the transfer of heat, leading to an increase in the energy consumption required for drying.

[0006] 2. During the mixing process, raw material particles are easily lifted by the airflow to form dust. These fine particles will escape through the exhaust vent, which not only wastes raw materials, but is also easily inhaled by workers, causing respiratory diseases.

[0007] (II) Technical Content

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A lithium iron phosphate battery raw material storage tank includes a storage tank with open top and bottom ends, a feeding port on one side of the storage tank, and a heater installed on the outer wall of the storage tank.

[0010] It also includes a dust suppression structure, which includes a tank cover and a dust suppression net. The tank cover is fixedly connected to the top opening of the storage tank, and the dust suppression net is installed on the inner wall of the tank cover.

[0011] The mixing structure includes a mixing main shaft and mixing blades. The mixing main shaft is rotatably connected to the tank cover cylinder and extends to the inner cavity of the storage tank at its bottom. The mixing blades are fixedly connected to the mixing main shaft through several connecting pipes. The dust suppression net is located above the mixing blades.

[0012] A blocking plate is rotatably connected to the bottom opening of the storage tank.

[0013] Furthermore, several stirring blades are provided, and the side profile of the stirring blades is adapted to the side profile of the longitudinal section of the inner wall of the storage tank.

[0014] Each stirring blade is fixedly connected to the stirring main shaft through several connecting pipes. A flow port is formed between two adjacent connecting pipes on the same stirring blade, and a gap is left between the stirring blade and the inner wall of the storage tank.

[0015] Furthermore, several inner wall scrapers are fixedly connected to both sides of the stirring blades, with the tips of the inner wall scrapers facing the inner wall of the storage tank and a gap between the tips of the inner wall scrapers and the inner wall of the storage tank.

[0016] Furthermore, the inner wall of the can lid cylinder is provided with two snap-fit ​​inner edges, and an outer snap-fit ​​groove is formed between the two snap-fit ​​inner edges. The inner wall of the upper snap-fit ​​inner edge is circumferentially fixedly connected with several support ribs, and the multiple support ribs are fixedly connected to the same inner snap ring, which is provided with an inner snap-fit ​​groove.

[0017] The dust suppression net is circular and has multiple sets. Multiple dust suppression nets are stacked together, with the inner sidewall of the dust suppression net nested in the inner slot and the outer sidewall nested in the outer slot.

[0018] Furthermore, the dust suppression net located in the inner slot is fixedly connected to the inner retaining ring by bolts, and the dust suppression net located in the outer slot is fixedly connected to the inner edge of the retaining ring by bolts.

[0019] Furthermore, a cross brace is fixedly connected between two adjacent stirring blades, and a vibration structure is installed on the top of at least one cross brace;

[0020] The vibration structure includes a T-shaped platform and a mesh scraper. The T-shaped platform is fixedly connected to one of the horizontal support rods. Several mesh scrapers are provided, and multiple mesh scrapers are fixedly connected to the transverse section of the T-shaped platform in an inclined manner, with their tips in contact with the dust-suppressing net at the lowest point.

[0021] Furthermore, a first drive motor is fixedly installed on the top of the can lid cylinder, and the output shaft of the first drive motor is fixedly connected to the stirring main shaft;

[0022] The can lid has an exhaust chamber that communicates with the inner cavity of the storage tank. A breathable mesh cover is fixedly installed on the top of the storage tank, and the breathable mesh cover is located on top of the exhaust chamber.

[0023] Furthermore, the outer wall of the storage tank is symmetrically fixedly connected with a docking frame, and the bottom side of the storage tank is symmetrically provided with a first shaft docking lug. The two first shaft docking lugs are rotatably connected to the same rotating shaft, and the side of the blocking plate is fixedly connected with a second shaft docking lug. The second shaft docking lug is fixedly sleeved on the rotating shaft.

[0024] A second drive motor is fixedly installed on one of the docking frames, and the output shaft of the second drive motor is fixedly connected to the rotating shaft.

[0025] Furthermore, the top of the blocking plate is provided with an inner clearance groove that communicates with the inner cavity of the storage tank. The bottom end of the stirring blade extends through the bottom opening of the storage tank and into the inner clearance groove. The side profile of the stirring blade extending into the inner clearance groove is adapted to the side profile of the longitudinal section of the inner clearance groove wall. The tip of the inner wall scraper of the stirring blade in the inner clearance groove faces the inner clearance groove wall.

[0026] The stirring blades located in the inner clearance groove and the tips of the inner wall scrapers are all separated from the groove wall.

[0027] Furthermore, the heater is a resistance heating tube, which is fixedly sleeved on the outer wall of the storage tank. The outer wall of the storage tank is fixedly connected to an outer cover by bolts. The resistance heating tube is located between the storage tank and the outer cover, and the positive and negative poles of the resistance heating tube extend out of the outer cover and are electrically connected to the external power supply.

[0028] A feed port baffle is rotatably connected to one side of the feed port, and a protrusion is fixedly connected to the outer wall of the storage tank. The protrusion has a rectangular groove, and a baffle is rotatably connected in the rectangular groove. The baffle abuts against the outer wall of the feed port baffle.

[0029] (III) Beneficial Effects

[0030] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0031] I. In this utility model, the outer wall of the storage tank is heated by a resistance heating tube, thereby increasing the temperature of the inner cavity of the storage tank and drying the raw materials stored in the inner cavity of the storage tank. During the stirring and drying process, some raw materials will adhere to and accumulate on the inner wall of the storage tank. When the accumulated thickness exceeds the gap between the inner wall scraper and the inner wall of the storage tank, the tip of the inner wall scraper will scrape off the raw materials adhering to the inner wall of the storage tank. The tip of the inner wall scraper can generate higher local pressure, making it easier to remove the raw materials.

[0032] Second, in this utility model, a gap is left between the stirring blade and the inner wall of the storage tank to avoid damage to the stirring blade caused by prolonged contact and friction between the stirring blade and the storage tank.

[0033] Third, in this utility model, during the stirring and drying process, the raw materials will float on the dust-suppressing net, and the raw material particles will rise with the hot airflow and float on the dust-suppressing net. By stacking multiple layers of dust-suppressing nets, when the rising raw material particles pass through the mesh of each layer, larger particles will be intercepted by the lower layer of dust-suppressing net, while smaller particles will continue to rise with the airflow and be gradually intercepted by the upper layer of dust-suppressing net, thus avoiding the risk of raw material particles being discharged into the working environment and being inhaled by workers.

[0034] Fourth, in this utility model, after the tip of the scraper barb comes into contact with the bottom of the dust-suppressing net, it will form an acute angle and an obtuse angle with the bottom of the dust-suppressing net. When the stirring main shaft drives the stirring blade to rotate counterclockwise, the T-shaped platform on the cross brace rotates synchronously, so that the scraper barb moves forward on its obtuse angle side, avoiding the scraper barb moving on its acute angle side, which would cause the tip of the scraper barb to pierce into the mesh of the dust-suppressing net and damage the dust-suppressing net.

[0035] During the movement, the tips of the barbs will strike the mesh of the dust-suppressing net, causing the net to vibrate and shake the raw material particles off the net back into the storage tank, preventing the waste of raw materials caused by the escape of the particles.

[0036] V. In this utility model, during material discharge, the output shaft of the second drive motor drives the rotating shaft to rotate clockwise. The rotating shaft, through the second shaft coupling lug, drives the blocking plate to rotate counterclockwise around the axis of the rotating shaft, thereby stopping the blockage at the bottom opening of the storage tank. The raw material in the storage tank is discharged through its bottom opening. At the same time, when the blocking plate is opened, the bottom end of the stirring blade will be connected to the outside. During the material discharge process, the bottom end of the stirring blade will rotate at the bottom opening of the storage tank, thereby preventing the raw material from blocking the bottom opening of the storage tank during discharge.

[0037] VI. In this utility model, the breathable mesh cover can prevent external debris from falling into the storage tank through the exhaust chamber. Attached Figure Description

[0038] Figure 1 is a three-dimensional schematic diagram of the entire utility model;

[0039] Figure 2 is a bottom view of the entire utility model;

[0040] Figure 3 is a magnified view of part A in Figure 2;

[0041] Figure 4 is a three-dimensional schematic diagram of the entire utility model from another perspective;

[0042] Figure 5 is a cross-sectional view of the storage tank, resistance heating tube and outer cover in this utility model;

[0043] Figure 6 is a cross-sectional view of the can lid cylinder of this utility model;

[0044] Figure 7 is a schematic diagram of the outer and inner card slots in this utility model;

[0045] Figure 8 is a cross-sectional view of the can lid cylinder, the inner edge of the snap-fit, the inner snap ring, the outer snap groove, the dust-reducing net, and the inner snap groove of this utility model.

[0046] In the diagram: 1. Storage tank; 101. Feed port; 102. First shaft docking lug; 103. Protrusion; 1031. Rectangular groove; 2. Baffle; 3. Tank lid cylinder; 301. Exhaust chamber; 31. Dust suppression net; 32. Snap-fit ​​inner edge; 3201. Outer snap-fit ​​groove; 33. Support rib; 34. Inner snap-fit ​​ring; 3401. Inner snap-fit ​​groove; 35. First drive motor; 36. Breathable mesh cover; 4. Stirring main shaft; 41. Stirring blades; 42. Connecting pipe; 43. Flow port; 44. Inner wall scraper; 45. Horizontal support rod; 5. Blocking plate; 501. Second shaft docking lug; 502. Inner clearance groove; 6. T-shaped platform; 61. Mesh scraper; 7. Docking frame; 8. Second drive motor; 9. Resistance heating tube; 10. Outer cover; 11. Rotating shaft; 12. Material port baffle. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] Example 1

[0049] As shown in Figures 1-8, a lithium iron phosphate battery raw material storage tank includes a storage tank 1 with open top and bottom ends, as shown in Figure 5. A feeding port 101 is provided on one side of the storage tank 1. A heater is installed on the outer wall of the storage tank 1. Specifically, as shown in Figure 5, the heater is a resistance heating tube 9, which is fixedly sleeved on the outer wall of the storage tank 1. An outer cover 10 is fixedly connected to the outer wall of the storage tank 1 by bolts. The resistance heating tube 9 is located between the storage tank 1 and the outer cover 10, and the positive and negative poles of the resistance heating tube 9 extend out of the outer cover 10 and are electrically connected to an external power supply (not shown in the figure). Raw materials are poured into the storage tank 1 through the feeding port 101. Power is provided to the resistance heating tube 9 by the external power supply. The resistance heating tube 9 heats the outer wall of the storage tank 1, thereby increasing the temperature of the inner cavity of the storage tank 1 and drying the raw materials stored in the inner cavity of the storage tank 1. The working principle of the resistance heating tube 9 is existing technology and will not be described in detail here.

[0050] As shown in Figure 1, a feed port baffle 12 is rotatably connected to one side of the feed port 101. A protrusion 103 is fixedly connected to the outer wall of the storage tank 1. The protrusion 103 has a rectangular groove 1031. A baffle 2 is rotatably connected in the rectangular groove 1031. The baffle 2 abuts against the outer wall of the feed port baffle 12. When feeding, the baffle 2 is rotated counterclockwise. At this time, the baffle 2 stops abutting against the outer wall of the feed port baffle 12. The operator rotates the feed port baffle 12 outward to stop the feed port baffle 12 from blocking the feed port 101. After feeding is completed, the feed port baffle 12 and the baffle 2 can be reset.

[0051] The lithium iron phosphate battery raw material storage tank also includes a dust suppression structure, as shown in Figure 6. The dust suppression structure includes a tank cover cylinder 3 and a dust suppression net 31. The tank cover cylinder 3 is fixedly connected to the top opening of the storage tank 1, and the dust suppression net 31 is installed on the inner wall of the tank cover cylinder 3.

[0052] The lithium iron phosphate battery raw material storage tank also includes a stirring structure, as shown in Figure 5. The stirring structure includes a stirring main shaft 4 and stirring blades 41. The stirring main shaft 4 is rotatably connected to the tank cover cylinder 3 and extends to the inner cavity of the storage tank 1. The stirring blades 41 are fixedly connected to the stirring main shaft 4 through several connecting pipes 42. The dust net 31 is located above the stirring blades 41.

[0053] A blocking plate 5 is rotatably connected to the bottom opening of the storage tank 1.

[0054] Furthermore, in order to improve the stirring efficiency, as shown in Figure 5, a number of stirring blades 41 are provided. The side profile of the stirring blades 41 is adapted to the side profile of the longitudinal section of the inner wall of the storage tank 1, so as to fully stir the raw materials in the inner cavity of the storage tank 1 and avoid the raw materials from settling in the dead corners of the storage tank 1.

[0055] Each stirring blade 41 is fixedly connected to the stirring main shaft 4 via several connecting pipes 42. The connecting pipes 42 not only fix the stirring blades 41, but also work together with the stirring blades 41 to agitate the material in the storage tank 1, improving the stirring efficiency and making the heat inside the storage tank 1 more evenly distributed. A flow port 43 is formed between two adjacent connecting pipes 42 on the same stirring blade 41 to facilitate the flow of raw materials. A gap is left between the stirring blades 41 and the inner wall of the storage tank 1 to avoid damage to the stirring blades 41 due to prolonged contact and friction between the stirring blades 41 and the storage tank 1.

[0056] Furthermore, several inner wall scrapers 44 are fixedly connected to both sides of the stirring blade 41. The tips of the inner wall scrapers 44 face the inner wall of the storage tank 1, and there is a gap between the tips of the inner wall scrapers 44 and the inner wall of the storage tank 1. During the stirring and drying process, some raw materials will adhere to and accumulate on the inner wall of the storage tank 1. When the accumulated thickness exceeds the gap between the inner wall scrapers 44 and the inner wall of the storage tank 1, the tips of the inner wall scrapers 44 will scrape off the raw materials adhering to the inner wall of the storage tank 1. The tips of the inner wall scrapers 44 can generate higher local pressure, making it easier to remove the raw materials and preventing the raw materials from continuously accumulating on the inner wall of the storage tank 1, which would slow down the speed at which the heat from the resistance heating tube 9 is transferred to the inner cavity of the storage tank 1 and affect the drying efficiency.

[0057] Furthermore, referring to Figures 4-6, a first drive motor 35 is fixedly installed on the top of the can lid cylinder 3. The output shaft of the first drive motor 35 is fixedly connected to the stirring main shaft 4. During drying, the output shaft of the first drive motor 35 drives the stirring main shaft 4 to rotate counterclockwise. The stirring main shaft 4 drives the stirring blades 41 to rotate counterclockwise around the axis of the stirring main shaft 4 through the connecting pipe 42, thereby stirring the raw materials in the storage tank 1.

[0058] Furthermore, as shown in Figures 6-8, the inner wall of the can lid cylinder 3 is provided with two snap-fit ​​inner edges 32, and an outer snap-fit ​​groove 3201 is formed between the two snap-fit ​​inner edges 32. The inner wall of the upper snap-fit ​​inner edge 32 is circumferentially fixedly connected with several support ribs 33, and the multiple support ribs 33 are fixedly connected to the same inner snap ring 34. The inner snap ring 34 is provided with an inner snap-fit ​​groove 3401.

[0059] The dust suppression net 31 is in the shape of a ring and multiple sets are provided. Multiple dust suppression nets 31 are stacked together, and the inner sidewall of the dust suppression net 31 is nested in the inner slot 3401, and the outer sidewall is nested in the outer slot 3201. The inner wall of the dust suppression net 31 is limited by the inner slot 3401, and the outer wall of the dust suppression net 31 is limited by the outer slot 3201.

[0060] Furthermore, the dust-reducing net 31 located in the inner slot 3401 is fixedly connected to the inner retaining ring 34 by bolts, and the dust-reducing net 31 located in the outer slot 3201 is fixedly connected to the inner edge of the retaining ring 32 by bolts, thereby fixing the dust-reducing net 31 between the inner slot 3401 and the outer slot 3201.

[0061] During the mixing and drying process, the raw materials will float on the dust suppression net 31. The raw material particles will rise with the hot airflow and float on the dust suppression net 31. By stacking multiple layers of dust suppression net 31, when the rising raw material particles pass through the mesh of each layer, larger particles will be intercepted by the lower layer of dust suppression net 31, while smaller particles will continue to rise with the airflow and be gradually intercepted by the upper layer of dust suppression net 31. This prevents the raw material particles from escaping and causing waste of raw materials, and at the same time avoids the risk of raw material particles being discharged into the working environment and being inhaled by workers.

[0062] Furthermore, as shown in Figures 2, 3 and 5, the outer wall of the storage tank 1 is symmetrically fixedly connected with a docking frame 7. The storage tank 1 can be installed in the required position through the docking frame 7. The bottom side of the storage tank 1 is symmetrically provided with a first shaft docking lug 102. The two first shaft docking lugs 102 are rotatably connected to the same rotating shaft 11. The side of the blocking plate 5 is fixedly connected with a second shaft docking lug 501. The second shaft docking lug 501 is fixedly sleeved on the rotating shaft 11.

[0063] As shown in Figure 4, a second drive motor 8 is fixedly installed on one of the docking frames 7, and the output shaft of the second drive motor 8 is fixedly connected to the rotating shaft 11.

[0064] Furthermore, the top of the blocking plate 5 is provided with an inner clearance groove 502 that communicates with the inner cavity of the storage tank 1. The bottom end of the stirring blade 41 extends through the bottom opening of the storage tank 1 and into the inner clearance groove 502. The side profile of the stirring blade 41 extending into the inner clearance groove 502 is adapted to the side profile of the longitudinal section of the inner clearance groove 502. The tip of the inner wall scraper 44 of the stirring blade 41 in the inner clearance groove 502 faces the inner clearance groove 502.

[0065] The stirring blades 41 and the tips of the inner wall scrapers 44 located in the inner clearance groove 502 are separated from the groove wall of the inner clearance groove 502. During the stirring and drying process, some raw materials will adhere to and accumulate on the groove wall of the inner clearance groove 502. When the accumulated thickness exceeds the gap between the tip of the inner wall scraper 44 and the groove wall of the inner clearance groove 502, the tip of the inner wall scraper 44 will scrape off the raw materials adhering to the groove wall of the inner clearance groove 502. The tip of the inner wall scraper 44 can generate higher local pressure, making it easier to remove the raw materials.

[0066] When discharge is required, the output shaft of the second drive motor 8 drives the rotating shaft 11 to rotate clockwise. The rotating shaft 11 drives the blocking plate 5 to rotate counterclockwise around the axis of the rotating shaft 11 through the second shaft docking lug 501, thereby stopping the blockage at the bottom opening of the storage tank 1. The raw material in the storage tank 1 is discharged through its bottom opening. At the same time, when the blocking plate 5 is opened, the bottom end of the stirring blade 41 will be connected to the outside. During the discharge process, the bottom end of the stirring blade 41 will rotate at the bottom opening of the storage tank 1, thereby preventing the raw material from blocking the bottom opening of the storage tank 1 during discharge.

[0067] Example 2

[0068] As shown in Figures 1-8, this embodiment has been improved based on the first embodiment as follows: Further, as shown in Figure 5, a cross brace 45 is fixedly connected between two adjacent stirring blades 41, and a vibration structure is installed on the top of at least one cross brace 45.

[0069] The vibration structure includes a T-shaped platform 6 and a scraper bar 61. The T-shaped platform 6 is fixedly connected to one of the horizontal support rods 45. Several scraper bars 61 are provided. All scraper bars 61 are fixedly connected to the transverse section of the T-shaped platform 6 at an incline, and their tips are in contact with the dust-suppressing net 31 at the lowest part. After the tips of the scraper bars 61 contact the bottom of the dust-suppressing net 31, they will form an acute angle and an obtuse angle with the bottom of the dust-suppressing net 31. When the stirring main shaft 4 drives the stirring blades 41 to rotate counterclockwise, the T-shaped platform 6 on the horizontal support rod 45 rotates synchronously, so that the scraper bars 61 advance with their obtuse angle side, avoiding the scraper bars 61 moving with their acute angle side, which would cause the tips of the scraper bars 61 to pierce into the mesh of the dust-suppressing net 31 and damage the dust-suppressing net 31.

[0070] During the movement, the tips of the scraper barbs 61 will strike the mesh of the dust-suppressing net 31, causing the dust-suppressing net 31 to vibrate and shake the raw material particles on the dust-suppressing net 31 back into the storage tank 1.

[0071] Furthermore, as shown in Figure 7, the can lid cylinder 3 has an exhaust chamber 301 that communicates with the inner cavity of the storage tank 1, and a breathable mesh cover 36 is fixedly installed on the top of the storage tank 1, with the breathable mesh cover 36 located on top of the exhaust chamber 301.

[0072] During the mixing and drying process, moisture will pass through the dust suppression net 31 and be discharged to the outside through the exhaust chamber 301 and the breathable mesh cover 36. The breathable mesh cover 36 can prevent external debris from falling into the storage tank 1 through the exhaust chamber 301.

[0073] In summary, the workflow of this utility model is as follows:

[0074] When feeding, rotate the baffle 2 counterclockwise. At this time, the baffle 2 stops abutting against the outer wall of the feed port baffle 12. The operator rotates the feed port baffle 12 outward to stop the feed port baffle 12 from blocking the feed port 101. After feeding is completed, reset the feed port baffle 12 and the baffle 2.

[0075] During drying, the outer wall of the storage tank 1 is heated by the resistance heating tube 9, thereby increasing the temperature of the inner cavity of the storage tank 1 and drying the raw materials stored in the inner cavity of the storage tank 1. At the same time, the output shaft of the first drive motor 35 drives the stirring main shaft 4 to rotate counterclockwise. The stirring main shaft 4 drives the stirring blades 41 to rotate counterclockwise around the axis of the stirring main shaft 4 through the connecting pipe 42, thereby stirring the raw materials in the storage tank 1.

[0076] During the mixing and drying process, some raw materials will adhere to and accumulate on the inner wall of the storage tank 1. When the thickness of the accumulation exceeds the gap between the inner wall scraper 44 and the inner wall of the storage tank 1, the tip of the inner wall scraper 44 will scrape off the raw materials adhering to the inner wall of the storage tank 1.

[0077] During the mixing and drying process, the raw materials will float on the dust-suppressing net 31. The raw material particles will rise with the hot airflow and float on the dust-suppressing net 31. By stacking multiple layers of dust-suppressing nets 31, when the rising raw material particles pass through the mesh of each layer, larger particles will be intercepted by the lower layer of dust-suppressing net 31, while smaller particles will continue to rise with the airflow and be gradually intercepted by the upper layer of dust-suppressing net 31. When the mixing main shaft 4 drives the mixing blade 41 to rotate counterclockwise, the T-shaped platform 6 on the cross support rod 45 will rotate synchronously, so that the scraper bar 61 will move forward with its obtuse angle side. During the movement, the tip of the scraper bar 61 will strike the mesh of the dust-suppressing net 31, so that the dust-suppressing net 31 will vibrate and shake the raw material particles on the dust-suppressing net 31 back into the storage tank 1. The water vapor in the storage tank 1 will pass through the dust-suppressing net 31 and be discharged to the outside through the exhaust chamber 301 and the breathable mesh cover 36.

[0078] When discharge is required, the output shaft of the second drive motor 8 drives the rotating shaft 11 to rotate clockwise. The rotating shaft 11 drives the blocking plate 5 to rotate counterclockwise around the axis of the rotating shaft 11 through the second shaft docking lug 501, thereby stopping the blockage at the bottom opening of the storage tank 1. The raw material in the storage tank 1 is discharged through its bottom opening. At the same time, when the blocking plate 5 is opened, the bottom end of the stirring blade 41 will be connected to the outside. During the discharge process, the bottom end of the stirring blade 41 will rotate at the bottom opening of the storage tank 1, thereby preventing the raw material from blocking the bottom opening of the storage tank 1 during discharge.

[0079] However, as is well known to those skilled in the art, the working principles and wiring methods of the first drive motor 35, the second drive motor 8, and the resistance heating tube 9 are commonplace and are all conventional methods or common knowledge. Therefore, they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0080] The different embodiments described above can be combined, substituted, or used in combination with each other.

[0081] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0082] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lithium iron phosphate battery raw material storage tank, comprising a storage tank (1), characterized in that: The storage tank (1) has open top and bottom ends, and a feeding port (101) is provided on one side of the storage tank (1). A heater is installed on the outer wall of the storage tank (1). It also includes a dust suppression structure, which includes a tank cover cylinder (3) and a dust suppression net (31). The tank cover cylinder (3) is fixedly connected to the top opening of the storage tank (1), and the dust suppression net (31) is installed on the inner wall of the tank cover cylinder (3). It also includes a stirring structure, which includes a stirring main shaft (4) and stirring blades (41). The stirring main shaft (4) is rotatably connected to the tank cover cylinder (3) and its bottom extends into the inner cavity of the storage tank (1). The stirring blades (41) are fixedly connected to the stirring main shaft (4) through several connecting pipes (42). The dust suppression net (31) is located above the stirring blades (41). A blocking plate (5) is rotatably connected to the bottom opening of the storage tank (1).

2. The lithium iron phosphate battery raw material storage tank according to claim 1, characterized in that: The stirring blades (41) are provided in a plurality of them. The side profile of the stirring blades (41) is adapted to the side profile of the longitudinal section of the inner wall of the storage tank (1). Each stirring blade (41) is fixedly connected to the stirring main shaft (4) through a plurality of connecting pipes (42). A flow port (43) is formed between two adjacent connecting pipes (42) on the same stirring blade (41). A gap is left between the stirring blades (41) and the inner wall of the storage tank (1).

3. The lithium iron phosphate battery raw material storage tank according to claim 2, characterized in that: Several inner wall scrapers (44) are fixedly connected to both sides of the stirring blade (41). The tips of the inner wall scrapers (44) face the inner wall of the storage tank (1), and there is a gap between the tips of the inner wall scrapers (44) and the inner wall of the storage tank (1).

4. The lithium iron phosphate battery raw material storage tank according to claim 1 or 2, characterized in that: The inner wall of the can lid cylinder (3) is provided with two snap-fit ​​inner edges (32), and an outer snap groove (3201) is formed between the two snap-fit ​​inner edges (32). The inner wall of the upper snap-fit ​​inner edge (32) is circumferentially fixedly connected with several support ribs (33). The multiple support ribs (33) are fixedly connected to the same inner snap ring (34), and the inner snap ring (34) is provided with an inner snap groove (3401). The dust suppression net (31) is circular and is provided with multiple sets. Multiple dust suppression nets (31) are stacked together, and the inner sidewall of the dust suppression net (31) is nested in the inner snap groove (3401), and the outer sidewall is nested in the outer snap groove (3201).

5. The lithium iron phosphate battery raw material storage tank according to claim 4, characterized in that: The dust suppression net (31) located in the inner slot (3401) is fixedly connected to the inner retaining ring (34) by bolts, and the dust suppression net (31) located in the outer slot (3201) is fixedly connected to the inner edge of the retaining ring (32) by bolts.

6. The lithium iron phosphate battery raw material storage tank according to claim 2, characterized in that: A cross brace (45) is fixedly connected between two adjacent stirring blades (41), and a vibration structure is installed on the top of at least one of the cross braces (45); the vibration structure includes a T-shaped platform (6) and a mesh scraper (61), the T-shaped platform (6) is fixedly connected to one of the cross braces (45), and a plurality of mesh scrapers (61) are provided, and the plurality of mesh scrapers (61) are fixedly connected in an inclined manner on the transverse section of the T-shaped platform (6), and the tips are in contact with the dust-reducing net (31) at the lowest part.

7. The lithium iron phosphate battery raw material storage tank according to claim 1, characterized in that: The top of the can lid cylinder (3) is fixedly installed with a first drive motor (35), and the output shaft of the first drive motor (35) is fixedly connected to the stirring main shaft (4); the can lid cylinder (3) is provided with an exhaust chamber (301) that communicates with the inner cavity of the storage tank (1), and the top of the storage tank (1) is fixedly installed with a breathable mesh cover (36), which is located at the top of the exhaust chamber (301).

8. The lithium iron phosphate battery raw material storage tank according to claim 1 or 2, characterized in that: The outer wall of the storage tank (1) is symmetrically fixedly connected to a docking frame (7). The bottom side of the storage tank (1) is symmetrically provided with a first shaft docking ear (102). The two first shaft docking ears (102) are rotatably connected to the same rotating shaft (11). The side of the blocking plate (5) is fixedly connected to a second shaft docking ear (501). The second shaft docking ear (501) is fixedly sleeved on the rotating shaft (11). A second drive motor (8) is fixedly installed on one of the docking frames (7). The output shaft of the second drive motor (8) is fixedly connected to the rotating shaft (11).

9. The lithium iron phosphate battery raw material storage tank according to claim 3, characterized in that: The top of the blocking plate (5) is provided with an inner clearance groove (502) that communicates with the inner cavity of the storage tank (1). The bottom end of the stirring blade (41) extends from the bottom opening of the storage tank (1) into the inner clearance groove (502), and the side profile of the stirring blade (41) extending into the inner clearance groove (502) matches the side profile of the longitudinal section of the inner clearance groove (502). The tip of the inner wall scraper (44) of the stirring blade (41) in the inner clearance groove (502) faces the groove wall of the inner clearance groove (502). The stirring blade (41) in the inner clearance groove (502) and the tip of the inner wall scraper (44) are both left with a gap from the groove wall of the inner clearance groove (502).

10. The lithium iron phosphate battery raw material storage tank according to claim 1, characterized in that: The heater is a resistance heating tube (9), which is fixedly sleeved on the outer wall of the storage tank (1). The outer wall of the storage tank (1) is fixedly connected to an outer cover (10) by bolts. The resistance heating tube (9) is located between the storage tank (1) and the outer cover (10), and the positive and negative poles of the resistance heating tube (9) extend out of the outer cover (10) and are electrically connected to an external power supply. A feed port baffle (12) is rotatably connected to one side of the feed port (101). A protrusion (103) is fixedly connected to the outer wall of the storage tank (1). The protrusion (103) has a rectangular groove (1031). A baffle (2) is rotatably connected in the rectangular groove (1031). The baffle (2) abuts against the outer wall of the feed port baffle (12).

Images