Rotary kiln for lithium battery processing

Abstract

The utility model discloses a rotary kiln for lithium battery processing, which belongs to the technical field of lithium battery processing equipment and comprises two assembly plates and a heating kiln mounted between the two assembly plates, the heating kiln comprises a kiln body and a heating plate mounted on the outer wall of the kiln body, a front sealing plate is mounted at one end of the kiln body, and a rear sealing plate is mounted at the other end of the kiln body. A rear sealing plate is installed at the other end of the kiln body, and a second driving motor is arranged on one side of the rear sealing plate. According to the inclined heating kiln, materials in the kiln body can be gathered in one direction when the kiln body rotates through the inclined heating kiln, then the kiln body rotates in the spiral direction during heating through the arrangement of the spiral plate, the materials are conveyed upwards from the lower position, the materials in the kiln body can be continuously turned upwards, and therefore the materials in the kiln body can be continuously heated. And therefore, the materials can move left and right in a small range while reacting, the efficiency of turning over the materials is improved, and the heating effect is improved.

Description

Technical Field

[0001] This utility model relates to a rotary kiln, and more particularly to a rotary kiln for lithium battery processing, belonging to the technical field of lithium battery processing equipment. Background Technology

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. The main materials of lithium batteries, such as lithium iron phosphate, lithium cobalt oxide, and lithium manganese oxide, need to be treated at high temperatures in a rotary kiln.

[0003] In the prior art, such as Chinese authorized patent CN2018216585112, a rotary kiln for lithium battery processing, a water cooling device is installed inside the kiln body. This device can quickly cool the heat-generating internal environment of the kiln body, preventing combustion or explosion during processing and facilitating the processing of lithium batteries. Furthermore, in this invention, the water pipes of the water cooling device are arranged along the axial direction of the kiln body and bent into a wavy shape. This increases the contact area between the water pipes and the internal environment of the kiln body, thereby increasing the heat exchange area of ​​the water pipes and further accelerating the heat dissipation speed of the kiln body, making the processing of lithium batteries more stable.

[0004] However, the rotary kiln mentioned above cannot rotate, which makes it impossible to fully heat the lithium battery powder, resulting in uneven heating and affecting heating efficiency. Utility Model Content

[0005] The main purpose of this invention is to solve the problems of insufficient heating and uneven heating by providing a rotary kiln for lithium battery processing.

[0006] The objective of this utility model can be achieved by adopting the following technical solution:

[0007] A rotary kiln for lithium battery processing includes two assembly plates and a heating kiln installed between the two assembly plates. The heating kiln includes a kiln body and heating plates installed on the outer wall of the kiln body. A front sealing plate is installed at one end of the kiln body, and a rear sealing plate is installed at the other end of the kiln body. A second drive motor is provided on one side of the rear sealing plate. The output end of the second drive motor is connected to a stirring shaft. A discharge chamber door is opened at the lower part of the kiln body. A spiral plate is installed on the inner wall of the kiln body, and a first drive motor is provided on the outer side of the kiln body.

[0008] Preferably, both of the assembly plates are slidably connected to the heating kiln via bearing bushes.

[0009] Preferably, the heating kiln is mounted on the assembly plate located on the left side at an upward tilt of 5-10 degrees at the end away from the discharge hopper door.

[0010] Preferably, the front sealing plate is provided with a feed hopper door.

[0011] Preferably, the output end of the first drive motor is connected to a connecting gear via a belt, and the connecting gear is rotatably connected to the assembly plate located on the left side via a connecting shaft.

[0012] Preferably, the outer wall of the kiln body is provided with a large gear that meshes with the connecting gear.

[0013] Preferably, the stirring shaft is composed of multiple mesh baffles and a rotating shaft.

[0014] Preferably, the plurality of mesh baffles are installed at a 90-degree angle to each other.

[0015] Preferably, a collection box is provided below the discharge hopper door.

[0016] Preferably, a heat dissipation component is provided above the heating kiln, the heat dissipation component being composed of a support frame and a plurality of fan units installed inside the support frame.

[0017] The beneficial technical effects of this utility model are as follows: The rotary kiln for lithium battery processing of this utility model uses an inclined heating kiln to allow the material inside the kiln to gather in one direction when the kiln body rotates. Furthermore, the spiral plate arrangement causes the kiln body to rotate in a spiral direction during heating, allowing the material to be conveyed upwards from a lower position. This continuously tumbles the material inside the kiln, enabling it to move slightly left and right while reversing, thus improving the efficiency of material tumbling. Simultaneously, during discharge, the kiln body rotates in the opposite direction, which, combined with the spiral plate, facilitates easier discharge. During heating, the mesh baffle further disperses the material, ensuring thorough heating. After heating, the kiln body is cooled by heat dissipation components, improving the cooling effect. Finally, the material is discharged through the discharge chamber door into the collection box. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure according to a preferred embodiment of the present invention;

[0019] Figure 2 This is a side view of the overall structure according to a preferred embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the bottom structure of a kiln body according to a preferred embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the stirring shaft structure according to a preferred embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of a spiral plate structure according to a preferred embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the discharge hopper door structure according to a preferred embodiment of the present invention.

[0024] In the diagram: 1. Assembly plate; 2. Heat dissipation component; 3. Front sealing plate; 4. Feed hopper door; 5. Rotary hopper; 6. First drive motor; 7. Collection box; 8. Rear sealing plate; 9. Second drive motor; 10. Discharge hopper door; 11. Kiln body; 12. Mesh baffle; 13. Spiral plate; 14. Heating plate. Detailed Implementation

[0025] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0026] like Figures 1-6 As shown, the rotary kiln for lithium battery processing provided in this embodiment includes two assembly plates 1 and a heating kiln 5 installed between the two assembly plates 1. The heating kiln 5 includes a kiln body 11 and a heating plate 14 installed on the outer wall of the kiln body 11. A front sealing plate 3 is installed at one end of the kiln body 11, and a rear sealing plate 8 is installed at the other end of the kiln body 11. A second drive motor 9 is provided on one side of the rear sealing plate 8. The output end of the second drive motor 9 is connected to a stirring shaft. A discharge chamber door 10 is opened at the lower part of the kiln body 11. A spiral plate 13 is installed on the inner wall of the kiln body 11. A first drive motor 6 is provided on the outer side of the kiln body 11. The first drive motor 6 drives the heating kiln 5 to rotate slowly, so that the lithium battery material inside the kiln body 11 is constantly turned over, thereby improving the heating effect. At the same time, the stirring shaft can stir the material inside, thereby further dispersing the material and making the heating more complete.

[0027] In this embodiment, as Figures 2-5As shown, both assembly plates 1 are slidably connected to the heating kiln 5 via bearing bushes. The end of the heating kiln 5 away from the discharge hopper door 10 is installed on the assembly plate 1 located on the left side at an upward inclination of 5-10 degrees. The front sealing plate 3 is provided with a feed hopper door 4. The output end of the first drive motor 6 is connected to a connecting gear via a belt. The connecting gear is rotatably connected to the assembly plate 1 located on the left side via a connecting shaft. The outer wall of the kiln body 11 is provided with a large gear that meshes with the connecting gear. The stirring shaft is composed of multiple mesh baffles 12 and a rotating shaft. The multiple mesh baffles 12 are installed at 90-degree angles to each other. A collection box 7 is provided below the discharge hopper door 10. The heat dissipation component 2 is composed of a support frame and multiple fan units installed inside the support frame. The inclined installation of the heating kiln 5 causes the kiln to... When the kiln body 11 rotates, the material inside can gather in one direction. Then, through the setting of the spiral plate 13, the kiln body 11 rotates in the spiral direction during heating, so that the material is transported from the bottom to the top. This allows the material inside the kiln body to continuously tumble upwards, so that the material can move slightly left and right while reversing, improving the efficiency of tumbling the material. At the same time, when discharging, the kiln body 11 rotates in the opposite direction, which, together with the spiral plate 13, makes it easier to discharge the material. During the heating process, the mesh baffle 12 can further disperse the material, so that it is fully heated. After heating is completed, the heat dissipation component 2 can cool the kiln body 11, improving the cooling effect. Finally, the material is discharged from the discharge chamber door 10 and enters the collection box 7.

[0028] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A rotary kiln for lithium battery processing, comprising two assembly plates (1) and a heating kiln (5) installed between the two assembly plates (1), characterized in that, The heating kiln (5) includes a kiln body (11) and a heating plate (14) installed on the outer wall of the kiln body (11). A front sealing plate (3) is installed at one end of the kiln body (11), and a rear sealing plate (8) is installed at the other end of the kiln body (11). A second drive motor (9) is provided on one side of the rear sealing plate (8). The output end of the second drive motor (9) is connected to a stirring shaft. A discharge chamber door (10) is opened at the lower part of the kiln body (11). A spiral plate (13) is installed on the inner wall of the kiln body (11), and a first drive motor (6) is provided on the outer side of the kiln body (11).

2. The rotary kiln for lithium battery processing according to claim 1, characterized in that, Both of the assembly plates (1) are slidably connected to the heating kiln (5) via bearing bushes.

3. The rotary kiln for lithium battery processing according to claim 2, characterized in that, The heating kiln (5) is mounted on the assembly plate (1) located on the left side at an upward tilt of 5-10 degrees at the end away from the discharge hopper door (10).

4. The rotary kiln for lithium battery processing according to claim 1, characterized in that, The front sealing plate (3) is provided with a feed hopper door (4).

5. A rotary kiln for lithium battery processing according to claim 1, characterized in that, The output end of the first drive motor (6) is connected to a connecting gear via a belt, and the connecting gear is rotatably connected to the assembly plate (1) located on the left side via a connecting shaft.

6. A rotary kiln for lithium battery processing according to claim 5, characterized in that, The outer wall of the kiln body (11) is provided with a large gear that meshes with the connecting gear.

7. A rotary kiln for lithium battery processing according to claim 1, characterized in that, The stirring shaft is composed of multiple mesh baffles (12) and a rotating shaft.

8. A rotary kiln for lithium battery processing according to claim 7, characterized in that, Multiple mesh baffles (12) are installed at 90-degree angles to each other.

9. A rotary kiln for lithium battery processing according to claim 1, characterized in that, A collection box (7) is provided below the discharge hopper door (10).

10. A rotary kiln for lithium battery processing according to claim 1, characterized in that, A heat dissipation component (2) is provided above the heating kiln (5). The heat dissipation component (2) is composed of a support frame and multiple fan units installed inside the support frame.

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