A positive electrode material spray drying device for lithium batteries

Abstract

The utility model provides a kind of positive electrode material spray drying device of lithium battery, comprising: drying tower body, storage tank, fixing device and sealing device, storage tank is fixedly installed in the output end of drying tower body, fixing device includes two rotary rods, two torsional springs, two fixed clamps and fixed ring, two rotary rods are all rotationally connected in the inside of storage tank, two torsional springs are respectively set on the surface of two rotary rods, the side of two fixed clamps is respectively fixedly connected to the side of two rotary rods, the surface of fixed clamp is provided with fixed ring, sealing device includes moving groove.The utility model provides a kind of positive electrode material spray drying device of lithium battery, after being set on the surface of fixed ring by storage bag, limiting is carried out by fixing device, opening is carried out by moving to sealing device, so that the particulate in the inside of storage tank enters the inside of storage bag, to facilitate fast the particulate in the inside of storage tank is taken out, increase work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production, and in particular to a spray drying device for positive electrode material of lithium batteries. Background Technology

[0002] Spray drying equipment is a key device for preparing high-purity, uniformly sized positive electrode active materials. It atomizes the positive electrode material precursor solution into micron-sized droplets, which are then rapidly dried after contact with hot air to form powder particles with specific crystal forms, particle size distributions, and specific surface areas, meeting the performance requirements of high capacity and long cycle life of lithium batteries.

[0003] After drying the cathode material in the laboratory using a spray drying device, the storage tank at the bottom of the drying tower needs to be removed, and the dried particles inside are poured into the storage bag for easy and quick removal of the particles.

[0004] Therefore, it is necessary to provide a spray drying apparatus for the positive electrode material of lithium batteries to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a spray drying device for the positive electrode material of lithium batteries, which solves the problem that currently it is necessary to remove the storage tank at the bottom of the drying tower and then pour the dried particles inside into the storage bag.

[0006] To solve the above-mentioned technical problems, this utility model provides a spray drying device for positive electrode material of lithium battery, including: a drying tower, a storage tank, a fixing device and a sealing device;

[0007] The storage tank is fixedly installed at the output end of the drying tower body;

[0008] The fixing device includes two rotating rods, two torsion springs, two fixing clamps and a fixing ring. The two rotating rods are rotatably connected to the inside of the storage tank. The two torsion springs are respectively sleeved on the surface of the two rotating rods. One side of each of the two fixing clamps is fixedly connected to one side of the two rotating rods. The surface of each fixing clamp is provided with a fixing ring.

[0009] The sealing device includes a movable groove, a sealing plate, and a fixing member. The movable groove is opened inside the storage tank, the sealing plate is slidably connected to the inside of the movable groove, and the fixing member is disposed inside the sealing plate.

[0010] Preferably, one end of the fixing ring is fixedly connected to one end of the storage tank.

[0011] Preferably, one end of each of the two torsion springs is fixedly connected to the inside of the storage tank, while the other end is fixedly connected to the inside of each of the two fixing clips.

[0012] Preferably, the fastener is a bolt, and both the sealing plate and the storage tank have threaded holes that are compatible with the bolt.

[0013] Preferably, the sealing device further includes a movable block, the bottom of which is fixedly connected to the top of the sealing plate.

[0014] Preferably, the storage tank is provided with a rotating device inside, the rotating device including a rotating rod and multiple rotating blades, the rotating rod being rotatably connected to the inside of the storage tank, and one end of each of the multiple rotating blades being fixedly connected to the surface of the rotating rod.

[0015] Preferably, the surface of the storage tank is fixedly connected with multiple protective blocks.

[0016] Compared with related technologies, the spray drying device for positive electrode material of lithium battery provided by this utility model has the following beneficial effects:

[0017] This utility model provides a spray drying device for the positive electrode material of lithium batteries. After the storage bag is placed on the surface of the fixing ring, it is limited by the fixing device. Then, the sealing device is moved to open, allowing the particles inside the storage tank to enter the storage bag, thereby facilitating and quickly removing the particles from the storage tank and increasing work efficiency. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a first embodiment of a spray drying device for positive electrode material of a lithium battery provided by this utility model;

[0019] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the storage tank.

[0020] Figure 3 for Figure 1 The diagram shows the structure of the fixing ring.

[0021] Figure 4 for Figure 2 The enlarged schematic diagram of part A shown below;

[0022] Figure 5 A schematic diagram of the structure of a second embodiment of a spray drying device for positive electrode material of a lithium battery provided by this utility model;

[0023] Figure 6 for Figure 5 The diagram shows a cross-sectional view of the storage tank.

[0024] The following are the labels in the diagram: 1. Drying tower body, 2. Storage tank, 3. Fixing device, 31. Rotating rod, 32. Torsion spring, 33. Fixing clamp, 34. Fixing ring, 4. Sealing device, 41. Moving groove, 42. Sealing plate, 43. Fixing component, 44. Moving block, 5. Rotating device, 51. Rotating rod, 52. Rotating blade, 6. Protective block. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] First Embodiment

[0027] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a spray drying device for positive electrode material of a lithium battery provided by this utility model; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the storage tank. Figure 3 for Figure 1 The diagram shows the structure of the fixing ring.

[0028] Figure 4 for Figure 2 The enlarged schematic diagram of part A is shown. A spray drying device for the positive electrode material of a lithium battery includes: a drying tower 1, a storage tank 2, a fixing device 3, and a sealing device 4;

[0029] The storage tank 2 is fixedly installed at the output end of the drying tower 1;

[0030] The fixing device 3 includes two rotating rods 31, two torsion springs 32, two fixing clips 33 and a fixing ring 34. The two rotating rods 31 are rotatably connected to the inside of the storage tank 2. The two torsion springs 32 are respectively sleeved on the surface of the two rotating rods 31. One side of the two fixing clips 33 is respectively fixedly connected to one side of the two rotating rods 31. The surface of the fixing clips 33 is provided with a fixing ring 34.

[0031] The sealing device 4 includes a movable groove 41, a sealing plate 42, and a fixing member 43. The movable groove 41 is opened inside the storage tank 2, the sealing plate 42 is slidably connected to the inside of the movable groove 41, and the fixing member 43 is disposed inside the sealing plate 42.

[0032] After the spray drying device prepares the slurry in the slurry preparation tank, it delivers the slurry to the atomizer through a high-pressure pump, atomizes it through centrifugal atomization, dries it through the drying tower 1, and then discharges it into the storage tank 2 for storage.

[0033] The storage tank 2 has a rotating groove inside. The two ends of the two rotating rods 31 are rotatably connected to the top and bottom of the inner wall of the rotating groove, respectively. Two rectangular blocks are fixedly connected to one side of each rod. The two rotating rods 31 are fixedly connected to one side of the two fixed clamps 33 through the two rectangular blocks, and the torsion spring 32 is located between the two rectangular blocks.

[0034] One end of the fixing ring 34 is fixedly connected to one end of the storage tank 2.

[0035] One end of each of the two torsion springs 32 is fixedly connected to the inside of the storage tank 2, while the other end is fixedly connected to the inside of each of the two fixing clips 33.

[0036] The fastener 43 is a bolt, and both the sealing plate 42 and the storage tank 2 have threaded holes that are compatible with the bolt.

[0037] After the bolt is installed into the threaded hole, the sealing plate 42 is positioned.

[0038] The sealing device 4 also includes a movable block 44, the bottom of which is fixedly connected to the top of the sealing plate 42.

[0039] The movable block 44 is used to move the movable block 44 to one side, thereby causing the sealing plate 42 to move to one side.

[0040] The working principle of the spray drying device for positive electrode material of lithium battery provided by this utility model is as follows:

[0041] In use, after the storage bag is placed on the surface of the fixing ring 34, one end of the two fixing clips 33 is rotated to one side and merged, thereby driving the two rotating rods 31 to rotate to one side. At the same time, the two torsion springs 32 tighten. When the two fixing clips 33 are merged, one end of the storage bag is limited.

[0042] After the fixing piece 43 is loosened, the sealing plate 42 is moved to one side inside the moving groove 41 and opened, and the particulate material inside the storage tank 2 is discharged into the storage bag.

[0043] After resetting the sealing plate 42, install the fastener 43.

[0044] After the two retaining clips 33 are released, the two torsion springs 32 return to their original position, thereby causing the two retaining clips 33, which are connected to the two rotating rods 31, to rotate to one side and return to their original position.

[0045] Compared with related technologies, the spray drying device for positive electrode material of lithium battery provided by this utility model has the following beneficial effects:

[0046] This utility model provides a spray drying device for the positive electrode material of lithium batteries. After the storage bag is placed on the surface of the fixing ring 34, it is limited by the fixing device 3. Then, the sealing device 4 is moved to open, allowing the particles inside the storage tank 2 to enter the storage bag, thereby facilitating and quickly removing the particles from the storage tank 2 and increasing work efficiency.

[0047] Second Embodiment

[0048] Please refer to the following: Figure 5 and Figure 6 Based on the first embodiment of this application, which provides a spray drying apparatus for the positive electrode material of a lithium battery, the second embodiment of this application proposes another spray drying apparatus for the positive electrode material of a lithium battery. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0049] Specifically, the difference in the second embodiment of this application regarding the spray drying apparatus for the positive electrode material of a lithium battery is that the storage tank 2 of the spray drying apparatus for the positive electrode material of a lithium battery is provided with a rotating device 5 inside. The rotating device 5 includes a rotating rod 51 and a plurality of rotating blades 52. The rotating rod 51 is rotatably connected to the inside of the storage tank 2, and one end of each of the plurality of rotating blades 52 is fixedly connected to the surface of the rotating rod 51.

[0050] A rotating handle is fixedly connected to one end of the rotating rod 51 to facilitate the rotation of the rotating rod 51.

[0051] Multiple protective blocks 6 are fixedly connected to the surface of the storage tank 2.

[0052] The protective block 6 is used to cause vibration in the storage tank 2 when an object strikes the protective block 6, thereby preventing internal particles from causing blockage.

[0053] The working principle of the spray drying device for positive electrode material of lithium battery provided by this utility model is as follows:

[0054] In use, by rotating the rotating rod 51 to one side, multiple rotating blades 52 are driven to rotate to one side, so that the multiple rotating blades 52 agitate the particles inside the storage tank 2, thereby preventing blockage.

[0055] At the same time, the storage tank 2 can be vibrated by striking the protective block 6 with an object.

[0056] Compared with related technologies, the spray drying device for positive electrode material of lithium battery provided by this utility model has the following beneficial effects:

[0057] This utility model provides a spray drying device for the positive electrode material of lithium battery. By rotating the rotating device 5, the inside of the storage tank 2 is moved. At the same time, the surface of the storage tank 2 is protected by the protective block 6. The user can make the storage tank 2 vibrate by tapping the protective block 6, thereby preventing the inside of the storage tank 2 from becoming blocked.

[0058] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A spray drying apparatus for the positive electrode material of a lithium battery, characterized in that, include: Drying tower body, storage tank, fixing device and sealing device; The storage tank is fixedly installed at the output end of the drying tower body; The fixing device includes two rotating rods, two torsion springs, two fixing clamps and a fixing ring. The two rotating rods are rotatably connected to the inside of the storage tank. The two torsion springs are respectively sleeved on the surface of the two rotating rods. One side of each of the two fixing clamps is fixedly connected to one side of the two rotating rods. The surface of each fixing clamp is provided with a fixing ring. The sealing device includes a movable groove, a sealing plate, and a fixing member. The movable groove is opened inside the storage tank, the sealing plate is slidably connected to the inside of the movable groove, and the fixing member is disposed inside the sealing plate.

2. The spray drying apparatus for the positive electrode material of a lithium battery according to claim 1, characterized in that, One end of the fixing ring is fixedly connected to one end of the storage tank.

3. The spray drying apparatus for the positive electrode material of a lithium battery according to claim 1, characterized in that, One end of each of the two torsion springs is fixedly connected to the inside of the storage tank, while the other end is fixedly connected to the inside of each of the two fixing clips.

4. The spray drying apparatus for the positive electrode material of a lithium battery according to claim 1, characterized in that, The fastener is a bolt, and both the sealing plate and the storage tank have threaded holes that are compatible with the bolt.

5. The spray drying apparatus for the positive electrode material of a lithium battery according to claim 1, characterized in that, The sealing device also includes a movable block, the bottom of which is fixedly connected to the top of the sealing plate.

6. The spray drying apparatus for the positive electrode material of a lithium battery according to claim 1, characterized in that, The storage tank is equipped with a rotating device inside. The rotating device includes a rotating rod and multiple rotating blades. The rotating rod is rotatably connected to the inside of the storage tank, and one end of each of the multiple rotating blades is fixedly connected to the surface of the rotating rod.

7. The spray drying apparatus for the positive electrode material of a lithium battery according to claim 6, characterized in that, The surface of the storage tank is fixedly connected with multiple protective blocks.

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