Storage tank for lithium iron phosphate battery raw materials

Abstract

The utility model discloses a storage tank for lithium iron phosphate battery raw materials, and belongs to the technical field of battery raw material storage. A storage tank for lithium iron phosphate battery raw materials comprises a material storage tank and further comprises a feeding pipe, a discharging pipe, a storage tank body, a discharging pipe and a storage tank body, wherein a screen box is detachably installed at a feeding port of the feeding pipe, and screen holes are formed in the inner bottom of the screen box in a penetrating mode; the top plate is mounted in the feeding pipe in a sliding manner; by starting the motor, the elastic rod can be driven to continuously impact the bottom of the screen box, so that the screen box vibrates, the mobility of iron powder raw materials of batteries in the screen box can be improved, the iron powder raw materials quickly pass through the screen holes to fall into the material storage tank, the feeding speed of the raw materials and the impurity removal efficiency of the raw materials can be improved, and the production efficiency is improved. Therefore, impurities are prevented from entering the storage tank along with the iron powder raw material of the battery, and subsequent production, processing and use of the battery are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of battery raw material storage, in particular to a storage tank for lithium iron phosphate battery raw materials. Background Art

[0002] Lithium iron phosphate battery is a lithium-ion battery that uses lithium iron phosphate as the positive electrode material. It has the advantages of high energy density, long cycle life, low self-discharge rate, etc. Among them, lithium iron phosphate is a compound composed of lithium, iron, phosphorus and other elements, and is the main raw material of lithium iron phosphate battery. These raw materials are usually prepared by chemical synthesis. The specific production process and formula may be different, but generally contain iron powder as one of the raw materials. Iron powder is a powdered iron material, which is usually used to prepare the positive electrode material of lithium iron phosphate battery.

[0003] During the production process of lithium iron phosphate batteries, it is usually necessary to store the iron powder raw materials in a silo so that they can be used at any time according to the production plan and demand to ensure production progress and output. However, during the processing of the iron powder raw materials, they may be contaminated by the external environment, causing impurities to enter the raw materials. When the iron powder raw materials for the battery are stored, these impurities will enter the silo along with the iron powder raw materials, thereby adversely affecting the subsequent production, processing and use of the battery. In order to solve the above-mentioned problems, a storage tank for lithium iron phosphate battery raw materials is provided. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that when the battery raw materials are currently stored, impurities in the raw materials will enter the silo along with the raw materials, thereby causing adverse effects on the subsequent production, processing and use of the battery, and to propose a storage tank for lithium iron phosphate battery raw materials.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A storage tank for lithium iron phosphate battery raw materials, including a storage tank, and also includes: a feed pipe with a feed port on the top, fixedly connected to the top of the storage tank; wherein a screen box is detachably installed at the feed port of the feed pipe, and screen holes are opened through the inner bottom of the screen box; a top plate is slidably installed inside the feed pipe; wherein a plurality of elastic rods are fixedly connected to the top of the top plate, and the top ends of the elastic rods face the bottom of the screen box, and a driving part for driving the elastic rods to rise and fall is provided on the feed pipe.

[0007] In order to drive the elastic rod to hit the bottom of the screen box, preferably, the driving part includes: a motor, fixedly mounted on the outer wall of the feed pipe; wherein a rotating rod is rotatably connected to the feed pipe, one end of the rotating rod is fixedly connected to the output end of the motor, and a cam is fixedly connected to the rotating rod.

[0008] In order to clean the dust generated during the storage of battery raw materials, preferably, the feed pipe is fixedly connected to a frame, a dust suction fan is installed on the top of the frame, the suction end of the dust suction fan is connected to a dust suction hood through a telescopic hose, and the outlet end of the dust suction fan is detachably connected to a dust removal bag through a straight pipe.

[0009] In order to improve the dust cleaning effect, further, a reciprocating screw is rotatably connected to the frame, a moving block is threadedly connected to the surface of the reciprocating screw, the moving block is laterally slidably connected to the frame, and the surfaces of the reciprocating screw and the rotating rod are fixedly connected with pulleys connected to each other by belts.

[0010] In order to enable the top plate to slide longitudinally on the frame, preferably, both sides of the inner wall of the feed pipe are provided with sliding grooves, and both sides of the top plate are fixedly connected with sliding blocks, and the sliding blocks are longitudinally slidably connected in the sliding grooves.

[0011] In order to enable the top plate to quickly return downward and generate strong vibration, a spring is further installed inside the slide groove, and two ends of the spring are fixedly connected to the inner wall of the slide groove and the top of the slider respectively.

[0012] Compared with the prior art, the utility model provides a storage tank for lithium iron phosphate battery raw materials, which has the following beneficial effects:

[0013] 1. The storage tank for lithium iron phosphate battery raw materials can drive the rotating rod to rotate by starting the motor, and can drive the elastic rod to continuously hit the bottom of the screen box, so that the screen box vibrates, which can improve the fluidity of the iron powder raw material of the lithium iron phosphate battery in the screen box, so that the iron powder raw material quickly passes through the screen hole and falls into the storage tank, which can improve the feeding speed of the raw material and the efficiency of removing impurities from the raw material. Through the coordinated use of the screen box, the screen hole and the elastic rod, impurities can be prevented from entering the storage tank together with the iron powder raw material of the battery, so as to improve the purity of the iron powder raw material, which is beneficial to the subsequent production, processing and use of the battery.

[0014] 2. The storage tank for lithium iron phosphate battery raw materials starts the dust suction fan to discharge the dust raised when the raw materials are dumped and removed into the dust removal bag, so that the raised dust can be cleaned and collected, which not only avoids environmental pollution but also facilitates the recycling and reuse of the raised dust raw materials.

[0015] 3. During the use of the storage tank for lithium iron phosphate battery raw materials, when the rotating rod rotates, it drives the reciprocating screw rod to rotate together, so that the dust hood moves back and forth laterally, and the dust collection position of the dust hood can be continuously changed to expand its dust collection range, thereby further improving the dust cleaning effect.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model solves the problem that when the battery raw materials are stored, impurities in the raw materials will enter the silo along with the raw materials, thereby causing adverse effects on the subsequent production, processing and use of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the axonometric structure of a storage tank for lithium iron phosphate battery raw materials proposed by the utility model;

[0018] Figure 2 A partial axonometric structure diagram of a storage tank for lithium iron phosphate battery raw materials proposed in the utility model Figure 1 ;

[0019] Figure 3 A partial axonometric structure diagram of a storage tank for lithium iron phosphate battery raw materials proposed in the utility model Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the sieve box structure of a storage tank for lithium iron phosphate battery raw materials proposed by the utility model;

[0021] Figure 5 This is a schematic diagram of the cutaway structure of a feed pipe of a storage tank for lithium iron phosphate battery raw materials proposed by the utility model;

[0022] Figure 6 The utility model provides a schematic diagram of the structure of a dust hood for a storage tank for lithium iron phosphate battery raw materials.

[0023] In the figure: 1. Storage tank; 2. Feeding pipe; 3. Screen box; 4. Screen hole; 5. Top plate; 6. Elastic rod; 61. Motor; 62. Rotating rod; 63. Cam; 7. Frame; 8. Dust suction fan; 81. Dust suction hood; 82. Telescopic hose; 83. Straight pipe; 84. Dust bag; 9. Reciprocating screw; 91. Pulley; 92. Moving block; 10. Slide; 11. Sliding block; 12. Spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] Example:

[0027] Reference Figure 1-Figure 6 The embodiment of the utility model provides a storage tank for raw materials of lithium iron phosphate batteries, including a storage tank 1, and also including: a feed pipe 2 with a feed port on the top, which is fixedly connected to the top of the storage tank 1; wherein a screen box 3 is detachably installed at the feed port of the feed pipe 2, and a screen hole 4 is opened through the inner bottom of the screen box 3; a top plate 5 is slidably installed inside the feed pipe 2; wherein a plurality of elastic rods 6 are fixedly connected to the top of the top plate 5, the number of the elastic rods 6 is 8-12, preferably 10, and are arranged linearly on the top plate 5, the material of the elastic rods 6 is rubber, which can reduce the noise generated by the elastic rods 6 when they collide, the top end of the elastic rods 6 faces the bottom of the screen box 3, and the feed pipe 2 is provided with a driving part for driving the elastic rods 6 to rise and fall.

[0028] Specifically, through the setting of the driving part, the top plate 5 and the elastic rod 6 can be driven to rise and fall, and the elastic rod 6 can continuously impact the bottom of the sieve box 3 to make the sieve box 3 vibrate, which can improve the fluidity of the iron powder raw material of the lithium iron phosphate battery in the sieve box 3, and make the iron powder raw material quickly pass through the sieve hole 4 and fall into the storage tank 1, which can improve the feeding speed of the raw material and the efficiency of removing impurities from the raw material. Through the coordinated use of the sieve box 3, the sieve hole 4 and the elastic rod 6, impurities can be prevented from entering the storage tank 1 along with the iron powder raw material of the battery, so as to improve the purity of the iron powder raw material, which is beneficial to the subsequent production, processing and use of the battery.

[0029] The driving part includes: a motor 61 fixedly mounted on the outer wall of the feed pipe 2; wherein a rotating rod 62 is rotatably connected to the feed pipe 2, one end of the rotating rod 62 is fixedly connected to the output end of the motor 61, and a cam 63 is fixedly connected to the rotating rod 62.

[0030] Specifically, when in use, by starting the motor 61, the output end of the motor 61 drives the rotating rod 62 and the cam 63 to rotate. When the top corner of the cam 63 contacts the bottom of the top plate 5 and squeezes it, the top plate 5 and the elastic rod 6 move upward and hit the bottom of the screen box 3 through the elastic rod 6. When the top corner of the cam 63 is separated from the bottom of the top plate 5, the top plate 5 and the elastic rod 6 will automatically reset downward quickly. Through the continuous rotation of the cam 63, the elastic rod 6 can be driven to continuously hit the bottom of the screen box 3.

[0031] A frame 7 is fixedly connected to the feed pipe 2, a dust suction fan 8 is installed on the top of the frame 7, the air suction end of the dust suction fan 8 is connected to a dust suction hood 81 through a telescopic hose 82, and the air outlet end of the dust suction fan 8 is detachably connected to a dust removal bag 84 through a straight pipe 83.

[0032] Specifically, during use, by starting the dust suction fan 8, the dust raised when pouring the raw materials and removing impurities can be discharged into the dust removal bag 84 through the dust suction hood 81, the telescopic hose 82 and the straight pipe 83, so that the raised dust can be cleaned and collected, which not only avoids environmental pollution but also facilitates the recycling and reuse of the raised dust raw materials.

[0033] A reciprocating screw 9 is rotatably connected to the frame 7, and a moving block 92 is threadedly connected to the surface of the reciprocating screw 9. The moving block 92 is laterally slidably connected to the frame 7. The surfaces of the reciprocating screw 9 and the rotating rod 62 are fixedly connected to pulleys 91 that are interconnected by belts.

[0034] Specifically, during use, when the rotating rod 62 rotates, it drives the two pulleys 91 to rotate, and at the same time drives the reciprocating screw 9 to rotate. Under the action of the thread, the dust hood 81 moves back and forth laterally, and the dust collection position of the dust hood 81 can be continuously changed to expand its dust collection range, thereby further improving the dust cleaning effect.

[0035] Slide grooves 10 are provided on both sides of the inner wall of the feed pipe 2 , and sliders 11 are fixedly connected to both sides of the top plate 5 . The sliders 11 are longitudinally slidably connected in the slide grooves 10 .

[0036] Specifically, by providing the slide groove 10 and the slider 11 , the top plate 5 and the elastic rod 6 can be guided so that the top plate 5 and the elastic rod 6 can slide longitudinally in the feed pipe 2 to ensure the impact effect on the screen box 3 .

[0037] A spring 12 is installed inside the slide groove 10 , and two ends of the spring 12 are fixedly connected to the inner wall of the slide groove 10 and the top of the slider 11 respectively.

[0038] Specifically, when the top corner of the cam 63 is separated from the bottom of the top plate 5, the elastic force of the spring 12 causes the slider 11 to drive the top plate 5 to quickly return downward, and at the same time, the slider 11 will quickly hit the inner wall of the slide groove 10, thereby causing the slider 11, the top plate 5 and the elastic rod 6 to vibrate strongly, and the iron powder raw material attached to the top plate 5 and the elastic rod 6 can be shaken off by the vibration.

[0039] Working principle: During the use of the storage tank for lithium iron phosphate battery raw materials, the iron powder raw materials of the battery are first transported to the sieve box 3 on the feed pipe 2, so that the iron powder raw materials fall into the storage tank 1 through the sieve hole 4, and the impurities in the iron powder raw materials will remain in the sieve box 3;

[0040] At the same time, during the storage process, by starting the motor 61, the output end of the motor 61 drives the rotating rod 62 and the cam 63 to rotate. When the top angle of the cam 63 contacts the bottom of the top plate 5 and squeezes it, the top plate 5 and the elastic rod 6 move upward, and the bottom of the screen box 3 is hit by the elastic rod 6. When the top angle of the cam 63 is separated from the bottom of the top plate 5, the top plate 5 and the elastic rod 6 will automatically reset downward. Through the continuous rotation of the cam 63, the elastic rod 6 can be driven to continuously hit the bottom of the screen box 3, so that the screen box 3 vibrates, which can improve the fluidity of the iron powder raw material of the lithium iron phosphate battery in the screen box 3, so that the iron powder raw material quickly passes through the sieve hole 4 and falls into the storage tank 1, which can improve the feeding speed of the raw material and the efficiency of removing impurities from the raw material. Through the coordinated use of the screen box 3, the sieve hole 4, the motor 61 and the elastic rod 6, impurities can be prevented from entering the storage tank 1 together with the iron powder raw material, so as to improve the purity of the iron powder raw material, which is beneficial to the subsequent production, processing and use of the battery.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A storage tank for lithium iron phosphate battery raw materials, comprising a storage tank (1), characterized in that: Also includes: A feed pipe (2) with a feed inlet at the top, fixedly connected to the top of the storage tank (1); Wherein, a sieve box (3) is detachably mounted at the feed inlet of the feed pipe (2), and a sieve hole (4) is provided through the inner bottom of the sieve box (3); A top plate (5) is slidably mounted inside the feed pipe (2); A plurality of elastic rods (6) are fixedly connected to the top of the top plate (5), the top ends of the elastic rods (6) face the bottom of the screen box (3), and a driving unit for driving the elastic rods (6) to rise and fall is provided on the feed pipe (2).

2. A storage tank for lithium iron phosphate battery raw materials according to claim 1, characterized in that: The driving unit comprises: A motor (61) is fixedly mounted on the outer wall of the feed pipe (2); Wherein, a rotating rod (62) is rotatably connected to the feed pipe (2), one end of the rotating rod (62) is fixedly connected to the output end of the motor (61), and a cam (63) is fixedly connected to the rotating rod (62).

3. A storage tank for lithium iron phosphate battery raw materials according to claim 1, characterized in that: The feed pipe (2) is fixedly connected to a frame (7), and a dust suction fan (8) is installed on the top of the frame (7); The air intake end of the dust suction fan (8) is connected to a dust suction hood (81) via a telescopic hose (82), and the air outlet end of the dust suction fan (8) is detachably connected to a dust removal bag (84) via a straight pipe (83).

4. A storage tank for lithium iron phosphate battery raw materials according to claim 3, characterized in that: A reciprocating screw rod (9) is rotatably connected to the frame body (7), and a moving block (92) is threadedly connected to the surface of the reciprocating screw rod (9); The moving block (92) is slidably connected to the frame (7) in a transverse manner, and the surfaces of the reciprocating screw rod (9) and the rotating rod (62) are fixedly connected with pulleys (91) which are connected to each other via belts.

5. A storage tank for lithium iron phosphate battery raw materials according to claim 1, characterized in that: Slide grooves (10) are provided on both sides of the inner wall of the feed pipe (2), and sliders (11) are fixedly connected to both sides of the top plate (5), and the sliders (11) are longitudinally slidably connected in the slide grooves (10).

6. A storage tank for lithium iron phosphate battery raw materials according to claim 5, characterized in that: A spring (12) is installed inside the slide groove (10), and two ends of the spring (12) are respectively fixedly connected to the inner wall of the slide groove (10) and the top of the sliding block (11).

Images