Waste pole piece drying line

Abstract

The utility model provides a waste pole piece drying line which comprises a first conveyor, a pulverizer, a second conveyor, a paddle dryer, a third conveyor and a stock bin which are sequentially arranged from front to back, the first conveyor is used for providing waste pole pieces for the pulverizer, and after the waste pole pieces are pulverized by the pulverizer, the second conveyor is used for conveying the waste pole pieces to the stock bin. The crushed materials are conveyed into the paddle dryer through the second conveyor, and the crushed materials dried by the paddle dryer are conveyed into the stock bin through the third conveyor to be stored. According to the utility model, the automation degree of drying the waste pole piece can be improved, the efficiency is improved, and the manual participation degree and the labor intensity are reduced. In addition, by using environment-friendly treatment equipment such as a drawer type filter in a matched mode, pollution to the environment during discharging can be further reduced.

Description

Technical Field

[0001] The utility model generally relates to the technical field of lithium batteries, and more specifically relates to a waste electrode drying line. Background Art

[0002] Electrodes are core components of lithium batteries, containing a large amount of high-value metals and materials. Positive electrodes typically contain rare metals such as lithium, cobalt, and nickel, while negative electrodes typically contain copper and graphite. By recycling used electrode materials, these materials can be refined and reused in battery production, reducing dependence on primary mineral resources.

[0003] In the existing waste electrode recycling process, the front-end process usually involves simple pre-processing of the electrode, crushing and dissociating it using a crusher, and then manually putting the crushed material into a drying equipment for drying. The process has a high degree of manual participation and low production efficiency.

[0004] In view of this, there is an urgent need to provide a waste electrode drying line to solve the problem. Utility Model Content

[0005] In order to at least solve one or more technical problems in the above-mentioned background technology, the present invention proposes a waste electrode drying line.

[0006] To this end, the present invention provides the following technical solutions.

[0007] The utility model discloses a waste electrode drying line, comprising: a first conveyor, a crusher, a second conveyor, a paddle dryer, a third conveyor, and a silo, which are arranged in sequence from front to back. The first conveyor is used to provide waste electrode sheets to the crusher. After the waste electrode sheets are crushed by the crusher, they are conveyed to the paddle dryer by the second conveyor. The crushed materials dried by the paddle dryer are conveyed to the silo for storage via the third conveyor.

[0008] Preferably, the silo is placed at a preset height, and a ton bag is provided below the silo, which is used to receive materials discharged from the discharge port of the silo; and a fourth conveyor is also included, which is used to receive materials from the third conveyor and transport them to the silo.

[0009] Preferably, the first conveyor, the second conveyor and the fourth conveyor are all belt conveyors, and the third conveyor is a screw conveyor.

[0010] Preferably, water receiving troughs are provided below the first conveyor, the second conveyor, and the crusher.

[0011] Preferably, four hooks are evenly arranged on the upper edge of the ton bag, and the four hooks are respectively used to connect four fixed balance cranes to ensure balanced force on all sides of the ton bag.

[0012] Preferably, a protective cover is further provided at the end of the first conveyor, and the protective cover is used to block flying fragments generated when the crusher crushes the waste pole pieces.

[0013] Preferably, the protective cover is provided with an observation window for observing whether the feed port of the grinder is blocked.

[0014] Preferably, a thermal oil furnace is further included, and the thermal oil furnace is used to provide heat for the jacket and blades of the paddle dryer.

[0015] Preferably, a dust removal device is further included to remove dust and moisture in the pulverizer and the paddle dryer.

[0016] Preferably, the dust removal device includes a first dust removal pipe, a second dust removal pipe, a drawer-type filter and a condensation tower, and the condensation tower is used to remove the remaining particulate matter and water vapor after filtering by the drawer-type filter; the two ends of the first dust removal pipe are respectively connected to the crusher and the drawer-type filter, and the two ends of the second dust removal pipe are respectively connected to the paddle dryer and the drawer-type filter, and the discharge outlet of the drawer-type filter is connected to the inlet of the condensation tower.

[0017] The technical solution provided by this application may have the following beneficial effects:

[0018] By utilizing the apparatus described in the above and multiple schemes of the present invention, that is, the present invention is provided with a first conveyor, a crusher, a second conveyor, a paddle dryer, a third conveyor, and a silo arranged in sequence from front to back, the first conveyor is used to provide waste electrode pieces to the crusher, and the waste electrode pieces are crushed by the crusher and then conveyed to the paddle dryer by the second conveyor. The crushed material dried by the paddle dryer is conveyed to the silo for storage by the third conveyor. The drying line composed of the aforementioned various devices can improve the degree of automation of the drying of waste electrode pieces, improve efficiency, and reduce the degree of manual participation and labor intensity. In addition, by using environmental protection treatment equipment such as drawer filters, the pollution to the environment during discharge can be further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0020] Figure 1 1 is a schematic diagram showing an embodiment of the present utility model;

[0021] Explanation of the accompanying drawings: 11. First conveyor; 12. Crusher; 13. Second conveyor; 14. Paddle dryer; 15. Third conveyor; 16. Silo; 21. Ton bag; 22. Fourth conveyor; 61. Protective cover; 81. Thermal oil furnace; 91. First dust removal duct; 92. Second dust removal duct; 93. Drawer filter; 94. Condensation tower. DETAILED DESCRIPTION

[0022] The embodiments will now be described with reference to the accompanying drawings. It should be understood that for simplicity and clarity of explanation, reference numerals may be repeated in the accompanying drawings to indicate corresponding or similar elements, where deemed appropriate. In addition, the present invention sets forth many specific details in order to provide a thorough understanding of the embodiments described herein. However, one of ordinary skill in the art will understand that the embodiments described herein may be practiced without these specific details. In other cases, well-known methods, processes, and components are not described in detail so as not to obscure the embodiments described herein. Moreover, this description should not be construed as limiting the scope of the embodiments described herein.

[0023] According to one embodiment of the present invention, a waste electrode drying line is provided. Figure 1 As shown, it includes: a first conveyor 11, a crusher 12, a second conveyor 13, a paddle dryer 14, a third conveyor 15, and a silo 16, which are arranged in sequence from front to back. The first conveyor 11 is used to provide waste electrode pieces to the crusher 12. After the waste electrode pieces are crushed by the crusher 12, they are conveyed to the paddle dryer 14 by the second conveyor 13. The crushed material after drying in the paddle dryer 14 is conveyed to the silo 16 for storage via the third conveyor 15.

[0024] The pulverizer 12 mentioned above is used to shred the waste electrodes, break the yellow glue connection, and form loose materials. The size of the shredded electrodes can be determined by selecting different tool densities and screen sizes.

[0025] In one embodiment, the silo 16 is placed at a preset height, and a ton bag 21 is provided below the silo 16, and the ton bag 21 is used to receive materials discharged from the discharge port of the silo 16; it also includes a fourth conveyor 22, and the fourth conveyor 22 is used to receive materials from the third conveyor 15 and transport them to the silo 16.

[0026] The first conveyor 11, the second conveyor 13, and the fourth conveyor 22 mentioned above are all belt conveyors, and the third conveyor 15 is a screw conveyor. Wherein, the belt conveyor can be arranged tilted, and the screw conveyor can be arranged horizontally.

[0027] In one embodiment, a water receiving trough is provided below the first conveyor 11 and the second conveyor 13, as well as below the pulverizer 12. The purpose of providing the water receiving trough is that the waste electrode pieces undergo a water washing pretreatment before being conveyed to the pulverizer 12 via the first conveyor 11. The waste electrode pieces have a high water content, so the water receiving trough is required to collect the water separated from the waste electrode pieces in different processes.

[0028] In another embodiment, four hooks are evenly arranged on the upper edge of the ton bag 21 , and the four hooks are respectively used to connect four fixed balance cranes to ensure that the force on all sides of the ton bag 21 is balanced.

[0029] In yet another embodiment, a protective cover 61 is further provided at the end of the first conveyor 11 , and the protective cover 61 is used to block flying fragments generated when the crusher 12 crushes the waste electrodes.

[0030] In the above embodiment, an observation window is provided on the protective cover 61 for observing whether the feed port of the grinder 12 is blocked.

[0031] To enhance drying efficiency, some embodiments further include a thermal oil furnace 81, which provides heat to the jacket and blades of the paddle dryer 14. The combination of the paddle dryer 14 and the thermal oil furnace 81 is a highly efficient and stable solution for industrial drying, offering advantages primarily in heating efficiency, temperature control, and safety. This prior art is not further elaborated here.

[0032] To ensure that emissions meet environmental requirements, in other embodiments, a dust removal device may be provided to remove dust and moisture from the pulverizer 12 and the blade dryer 14. Specifically, the dust removal device includes a first dust removal duct 91, a second dust removal duct 92, a drawer filter 93, and a condensation tower 94. The condensation tower 94 is used to remove remaining particulate matter and water vapor after filtering through the drawer filter 93. The first dust removal duct 91 is connected to the pulverizer 12 and the drawer filter 93 at both ends, and the second dust removal duct 92 is connected to the blade dryer 14 and the drawer filter 93 at both ends, allowing dust and moisture from the pulverizer 12 and the blade dryer 14 to enter the drawer filter 93 for preliminary filtration. The outlet of the drawer filter 93 is connected to the inlet of the condensation tower 94. The condensation tower 94 further filters the preliminarily filtered dust and moisture, condensing the moisture into water droplets.

[0033] The drawer filter 93 and the condensation tower 94 are both prior art and will not be described in detail here.

[0034] It should be understood that the terms "first" or "second" and the like in the claims, specifications, and drawings disclosed herein are used to distinguish between different objects, rather than to describe a specific order. The terms "include" and "comprising" used in the specifications and claims disclosed herein indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0035] It should also be understood that the terminology used in this disclosure is for the purpose of describing specific embodiments only and is not intended to limit the disclosure. As used in this disclosure and the claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It should also be further understood that the term "and / or" as used in this disclosure and the claims refers to any and all possible combinations of one or more of the associated listed items, including and including these combinations.

[0036] Although the embodiments of the present invention are as described above, the above contents are merely examples for facilitating understanding of the present invention and are not intended to limit the scope and application scenarios of the present invention. Any person skilled in the art of the present invention may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed by the present invention. However, the scope of patent protection of the present invention shall still be based on the scope defined by the attached claims.

Claims

1. A waste electrode drying line, characterized in that: include: The first conveyor (11), the crusher (12), the second conveyor (13), the paddle dryer (14), the third conveyor (15), and the silo (16) are arranged in sequence from front to back. The first conveyor (11) is used to provide the crusher (12) with waste electrodes. After the waste electrodes are crushed by the crusher (12), they are conveyed to the paddle dryer (14) by the second conveyor (13). The crushed materials dried by the paddle dryer (14) are conveyed to the silo (16) for storage via the third conveyor (15).

2. The waste electrode drying line according to claim 1, characterized in that: The silo (16) is placed at a preset height, and a ton bag (21) is provided below the silo (16), and the ton bag (21) is used to receive materials discharged from the discharge port of the silo (16); and a fourth conveyor (22) is also included, and the fourth conveyor (22) is used to receive materials from the third conveyor (15) and transport them to the silo (16).

3. The waste electrode drying line according to claim 2, characterized in that: The first conveyor (11), the second conveyor (13), and the fourth conveyor (22) are all belt conveyors, and the third conveyor (15) is a screw conveyor.

4. The waste electrode drying line according to claim 3, characterized in that: Water receiving troughs are provided below the first conveyor (11) and the second conveyor (13), as well as below the crusher (12).

5. The waste electrode drying line according to claim 2, characterized in that: Four hooks are evenly arranged on the upper edge of the ton bag (21), and the four hooks are respectively used to connect four fixed balance hangers to ensure that the force on all sides of the ton bag (21) is balanced.

6. The waste electrode drying line according to claim 1, characterized in that: A protective cover (61) is also provided at the end of the first conveyor (11), and the protective cover (61) is used to block flying fragments generated when the crusher (12) crushes the waste electrodes.

7. The waste electrode drying line according to claim 6, characterized in that: The protective cover (61) is provided with an observation window for observing whether the feed port of the pulverizer (12) is blocked.

8. The waste electrode drying line according to claim 1, characterized in that: It also includes a thermal oil furnace (81), which is used to provide heat for the jacket and blades of the blade dryer (14).

9. The waste electrode drying line according to claim 1, characterized in that: It also includes a dust removal device for removing dust and moisture in the pulverizer (12) and the paddle dryer (14).

10. The waste electrode drying line according to claim 9, characterized in that: The dust removal device comprises a first dust removal pipe (91), a second dust removal pipe (92), a drawer-type filter (93) and a condensation tower (94), wherein the condensation tower (94) is used to remove the remaining particulate matter and water vapor after being filtered by the drawer-type filter (93); the two ends of the first dust removal pipe (91) are respectively connected to the pulverizer (12) and the drawer-type filter (93), the two ends of the second dust removal pipe (92) are respectively connected to the paddle dryer (14) and the drawer-type filter (93), and the discharge port of the drawer-type filter (93) is connected to the inlet of the condensation tower (94).

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