Lithium battery carbonization furnace

Abstract

The utility model discloses a lithium battery carbonization furnace which comprises a furnace body, a plurality of first spiral bands are arranged on the inner wall of the furnace body, and the first spiral bands are distributed in an annular array mode with the central axis of the furnace body as the center. The first spiral belt is arranged on the inner wall of the furnace body and tightly attached to the inner wall of the furnace body, so that the central area of the furnace body is used for conveying crushed battery materials, the crushed battery materials are conveyed forwards under spiral guiding of the first spiral belt in the rotating process of the furnace body, and the friction degree of the crushed battery materials after combustion can be increased; the probability that black particles formed after organic matter on the metal material is carbonized fall off from the metal material is improved, and the situation that conveying is affected due to adhesion of the black particles can be avoided.

Description

Technical Field

[0001] This utility model belongs to the field of lithium battery recycling technology, specifically relating to a lithium battery carbonization furnace. Background Technology

[0002] Driven by the rapid growth in electric vehicle production, my country's lithium battery industry continues its rapid growth, making the research on the reuse of discarded lithium batteries an urgent issue that needs to be addressed. During the recycling process of discarded lithium-ion battery packs, the diversity of the structure and size of the recovered lithium batteries necessitates a high degree of manual intervention. Current conventional processing methods utilize carbonization furnaces with multiple independent lifting blades for conveying materials, which encroaches on the material conveying space. The irregular and diverse shapes of the lithium battery fragments make them prone to jamming, and the high temperatures inside the carbonization furnace easily cause the independent lifting blades to deform and break. Therefore, the lifting blades require high heat resistance, resulting in high costs. Utility Model Content

[0003] This invention provides a lithium battery carbonization furnace, which directly sets a spiral belt on the inner wall of the furnace body to maximize the material transport within the furnace body and eliminates the need for external conveying power, thus solving the shortcomings described in the prior art.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A lithium battery carbonization furnace includes a furnace body with several first spiral bands arranged on the inner wall of the furnace body. These first spiral bands are arranged in a circular array around the central axis of the furnace body. The first spiral bands are positioned close to the inner wall of the furnace body, ensuring that the central area of ​​the furnace body is used to transport battery fragments. During furnace rotation, the battery fragments are transported forward under the spiral guidance of the first spiral bands. This increases the friction of the battery fragments after combustion, providing good low-altitude stirring, rapidly burning the electrolyte, preventing metal oxidation, and increasing the probability of black particles formed after carbonization of organic matter on the metal material detaching from the metal material. It also prevents black particles from adhering and affecting the transport process.

[0006] In a preferred embodiment of this invention, the furnace body comprises a main conveying chamber, a constricted conveying chamber, and a discharge chamber, the diameter of which is smaller than that of the main conveying chamber; a first spiral band is provided on the inner wall of the main conveying chamber. The main conveying chamber primarily handles the combustion and conveying of battery fragments, which are then discharged from the discharge chamber via the constricted conveying chamber.

[0007] As a preferred embodiment of this utility model, the inner wall of the constricted conveying cavity is provided with a plurality of second spiral bands, each of which is arranged in a central annular array along the axis of the constricted conveying cavity; and the second spiral bands correspond one-to-one with the first spiral bands.

[0008] In a preferred embodiment of this invention, each second spiral belt is staggered with its corresponding first spiral belt. The second spiral belt receives the material conveyed by the first spiral belt, and the staggered arrangement enables better material transfer.

[0009] As a preferred embodiment of this utility model, the first end of the second spiral band extends between the tail ends of two adjacent first spiral bands.

[0010] As a preferred embodiment of this utility model, the inner wall of the discharge cavity is provided with a plurality of third spiral bands, and each third spiral band is distributed in a central ring array along the axis of the discharge cavity.

[0011] As a preferred embodiment of this utility model, the third spiral band corresponds one-to-one with the second spiral band, and each third spiral band and its corresponding second spiral band are staggered.

[0012] As a preferred embodiment of this utility model, the first end of the third spiral band extends between the tail ends of two adjacent second spiral bands.

[0013] This invention directly sets a spiral belt on the inner wall of the furnace, which can increase the friction of the battery fragments after combustion, play a good role in low-altitude stirring, quickly burn the electrolyte, avoid metal oxidation, increase the probability of black particles formed after the organic matter on the metal material is carbonized and fall off the metal material, and also prevent the black particles from sticking together and affecting the conveying. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 for Figure 1 AA section view in the image.

[0017] Figure 3 This is a schematic diagram showing the combination of the first spiral band, the second spiral band, and the third spiral band of this utility model. Detailed Implementation

[0018] 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.

[0019] Example:

[0020] A lithium battery carbonization furnace, such as Figure 1 and 2 As shown, the furnace includes a furnace body 1, which has a main conveying chamber 11, a constricted conveying chamber 12, and a discharge chamber 13. The diameter of the discharge chamber 123 is smaller than the diameter of the main conveying chamber 11.

[0021] The inner wall of the main conveying chamber 11 is provided with several first spiral belts 2. In this embodiment, five first spiral belts are provided. The first spiral belts 2 are arranged in a 360° circular array with the central axis of the main conveying chamber 11 as the center. The main conveying chamber is mainly used for the combustion and conveying of battery fragments, and finally the fragments are discharged from the discharge chamber through the constricted conveying chamber.

[0022] The inner wall of the constricted conveying cavity 12 is provided with a plurality of second spiral bands 3, each second spiral band 3 being arranged in a central ring array along the axis of the constricted conveying cavity 12; the axis of the constricted conveying cavity 12 coincides with the central axis of the conveying cavity 11; each second spiral band 3 corresponds one-to-one with a first spiral band 2, and each second spiral band 3 and its corresponding first spiral band 2 are staggered. In this embodiment, the first end of the second spiral band 3 extends between the tail ends of two adjacent first spiral bands 2. The second spiral bands receive the material conveyed by the first spiral bands, and the staggered arrangement enables better material transfer.

[0023] The inner wall of the discharge chamber 13 is provided with a plurality of third spiral bands 4, each third spiral band 4 being arranged in a circular array around the central axis of the discharge chamber 13. The axis of the discharge chamber 13 coincides with the axis of the constricted conveying chamber 12. The third spiral bands 4 correspond one-to-one with the second spiral bands 3, and each third spiral band 4 and its corresponding second spiral band 3 are staggered, with the first end of the third spiral band 4 extending between the tail ends of two adjacent second spiral bands 3.

[0024] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The above description is only a preferred 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 technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lithium battery carbonization furnace, comprising a furnace body (1), characterized in that: A plurality of first spiral bands (2) are provided on the inner wall of the furnace body (1), and each first spiral band (2) is arranged in a ring array with the central axis of the furnace body (1) as the center; the furnace body (1) has a main conveying chamber (11), a constricted conveying chamber (12) and a discharge chamber (13), and the diameter of the discharge chamber (13) is smaller than the diameter of the main conveying chamber (11); the inner wall of the main conveying chamber (11) is provided with first spiral bands (2); the inner wall of the constricted conveying chamber (12) is provided with a plurality of second spiral bands (3), and each second spiral band (3) is arranged in a ring array with the central axis of the constricted conveying chamber (12) as the center; the inner wall of the discharge chamber (13) is provided with a plurality of third spiral bands (4), and each third spiral band (4) is arranged in a ring array with the central axis of the discharge chamber (13).

2. The lithium battery carbonization furnace according to claim 1, characterized in that: Furthermore, the second spiral band (3) corresponds one-to-one with the first spiral band (2).

3. The lithium battery carbonization furnace according to claim 2, characterized in that: Each second spiral band (3) is staggered with the corresponding first spiral band (2).

4. The lithium battery carbonization furnace according to claim 3, characterized in that: The first end of the second spiral band (3) extends between the tail ends of the two adjacent first spiral bands (2).

5. The lithium battery carbonization furnace according to claim 4, characterized in that: The third spiral band (4) corresponds one-to-one with the second spiral band (3), and each third spiral band (4) and the corresponding second spiral band (3) are staggered.

6. The lithium battery carbonization furnace according to claim 5, characterized in that: The first end of the third spiral band (4) extends between the tail ends of the two adjacent second spiral bands (3).

Images