Lithium battery base material coating dust removal device

Abstract

The utility model relates to the technical field of dust removal devices, in particular to a lithium battery base material coating dust removal device. The device comprises a dust remover air return cover, the dust remover air return cover is arranged in front of a transition roller, an adjustable air knife is arranged on the dust remover air return cover, the adjustable air knife is connected with a high-pressure vortex fan, the dust remover air return cover is connected with a three-stage filter, and the dust remover air return cover is of a detachable structure; the dust remover air return cover is of a rectangular structure and comprises a fixed cover and a movable cover, the fixed cover comprises a rectangular plate I, a shielding plate I and a shielding plate II are perpendicularly arranged on the rectangular plate, a groove is formed in the top of the shielding plate II downwards, the movable cover comprises a rectangular plate II, and a shielding plate III and a shielding plate IV are perpendicularly arranged on the rectangular plate II downwards. And the shielding plate IV is clamped in the shielding plate II. According to the invention, the metal dust of the base material before coating in the lithium battery production process can be blown, and the influence of pollution of the base material in the production and transportation process on the performance of the lithium battery is reduced.

Description

Technical Field

[0001] This utility model relates to the field of dust removal device technology, specifically to a dust removal device for lithium battery substrate coating. Background Technology

[0002] Existing substrate dust removal methods use compressed air to blow away metal dust and other particulate matter adhering to the substrate surface through nozzles. For example, Chinese Patent CN217147512U discloses a conveyor belt blowing device. The front end of the blowing pipe is connected to a compressed air station via an air pipe. Continuous supply of compressed air creates a horizontal jet at the nozzles, impacting and blowing away dust adhering to the conveyor belt surface as the material falls, causing the dust to be in a state of flux. Multiple nozzles are installed on a single metal pipe, resulting in lower air pressure between each pair of nozzles and higher air pressure at the vertical plane of the nozzles. This uneven air pressure on the substrate surface leads to poor dust removal efficiency. The large volume of compressed air used directly increases the load on the air compressor system, resulting in high energy consumption. The blown-off dust falls directly into the workshop without collection or filtration devices, causing secondary pollution to the substrate after dust removal and also polluting the workshop environment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a dust removal device for coating lithium battery substrates, which can remove dust from the coating of lithium battery substrates and the designed air duct can effectively collect dust.

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

[0005] A dust removal device for coating lithium battery substrate includes a dust collector return air hood, which is located in front of the transition roller. The dust collector return air hood is equipped with an adjustable air knife, which is connected to a high-pressure vortex fan. The dust collector return air hood is connected to a three-stage filter and is a detachable structure.

[0006] Preferably, the dust collector return air hood has a rectangular structure and includes a fixed hood and a movable hood. The fixed hood includes a rectangular plate I, on which a shield I and a shield II are vertically arranged. The top of the shield II has a downward-facing groove. The movable hood includes a rectangular plate II, on which a shield III and a shield IV are vertically arranged. The shield IV is fitted inside the shield II.

[0007] Preferably, the shield Ⅲ is located to the left of the shield Ⅱ, and the bottom of the shield Ⅲ is lower than the top of the shield Ⅰ.

[0008] Preferably, the bottom of the rectangular plate I is provided with a through hole, which is located between the shield plate I and the shield plate II, and a return air duct is connected to the through hole.

[0009] Preferably, the adjustable air knife is located on the left side of the baffle plate III, and the adjustable air knife is connected to the air supply duct.

[0010] Preferably, the fixed cover and the movable cover are provided with baffles on both sides, and a sealing strip is provided at the connection between the fixed cover, the movable cover and the baffles.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] The front-mounted return air hood, in conjunction with a high-pressure vortex fan, forms a positive pressure air curtain, effectively blocking dust diffusion paths and improving capture efficiency. The modular, detachable structure, combined with a snap-on sealing design, enhances equipment maintenance efficiency. The circulating air duct and adjustable air knife optimize airflow distribution and reduce energy consumption. This solution significantly improves coating process stability, reduces electrode defect rates, and demonstrates significant process value and economic benefits. Attached Figure Description

[0013] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the overall structure of the dust collector return air hood of this utility model.

[0016] Figure 3 This is a side sectional view of the dust collector return air hood of this utility model.

[0017] Figure 4 This is a schematic diagram of the exploded structure of the dust collector return air hood of this utility model.

[0018] In the diagram: 1. Transition roller; 2. Adjustable air knife; 3. High-pressure vortex fan; 4. Three-stage filter; 5. Rectangular plate I; 6. Baffle I; 7. Baffle II; 8. Groove; 9. Rectangular plate II; 10. Baffle III; 11. Baffle IV; 12. Through hole; 13. Baffle; 14. Supply air duct; 15. Return air duct. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0020] Example 1

[0021] like Figures 1-4 As shown, this embodiment provides a dust removal device for lithium battery substrate coating, including a dust collector return air hood, which is located in front of the transition roller 1. The dust collector return air hood is equipped with an adjustable air knife 2, which is connected to a high-pressure vortex fan 3. The dust collector return air hood is also connected to a three-stage filter 4. The dust collector return air hood is a detachable structure. By adopting a front-mounted return air hood + high-pressure vortex fan 3 integrated system, the dust collector return air hood is directly arranged in front of the transition roller 1 of the coating machine. This dust collector return air hood is connected to the high-pressure vortex fan 3 through the adjustable air knife 2, forming a positive pressure air curtain. Simultaneously, a three-stage filter is connected in series at the rear end of the return air hood to achieve circulating purification. The detachable structural design allows for quick separation of the return air hood from the main equipment.

[0022] Preferably, the dust collector return air hood has a rectangular structure, comprising a fixed hood and a movable hood. The fixed hood includes a rectangular plate I5, on which a shield I6 and a shield II7 are vertically mounted. The top of shield II7 has a downward-facing groove 8. The movable hood includes a rectangular plate II9, on which a shield III10 and a shield IV11 are vertically mounted. Shield IV11 is fitted into shield II7. The top of shield II7 of the fixed hood is designed with an inverted U-shaped groove 8, and shield IV11 of the movable hood is quickly positioned by snapping into the groove 8. A through hole 12 is opened at the bottom of rectangular plate I5 and connected to a return air duct 15 to form a circulating air duct.

[0023] Preferably, the baffle plate Ⅲ10 is located to the left of the baffle plate Ⅱ7, and the bottom height of the baffle plate Ⅲ10 is lower than the top height of the baffle plate Ⅰ6. By setting the bottom height of the baffle plate Ⅲ10 to be lower than the top height of the baffle plate Ⅰ6, a circulating air duct is formed, which is beneficial for dust collection.

[0024] Preferably, the rectangular plate I5 has a through hole 12 at its bottom, which is located between the shield I6 and the shield II7. A return air duct 15 is connected to the through hole 12. The return air duct 15 can transport the blown-off dust to the three-stage filter 4 to prevent dust from scattering in the workshop.

[0025] Preferably, the adjustable air knife 2 is located on the left side of the baffle plate III 10, and the adjustable air knife 2 is connected to the air supply duct 14. The air supply duct 14 can deliver the air from the high-pressure eddy current fan 3 to the adjustable air knife 2 and blow off the coated dust.

[0026] Preferably, baffles 13 are provided on both sides of the fixed cover and the movable cover, and a sealing strip is provided at the connection between the fixed cover, the movable cover and the baffles 13. The sealing strip is used to increase the sealing performance and improve the dust removal effect.

[0027] Working principle:

[0028] This lithium battery substrate coating dust removal device adopts a front-mounted return air hood and a high-pressure vortex fan 3 integrated system. The rectangular dust collector return air hood is directly positioned in front of the coating machine's transition roller 1. The dust collector return air hood consists of a quick-detachable fixed hood and a movable hood. Adjustable air knives 2 guide the airflow generated by the high-pressure fan to the surface of the transition roller 1, forming a positive pressure air curtain. Simultaneously, the dust-laden air is circulated and purified through a three-stage filter system (pre-filter, medium-efficiency filter, and high-efficiency filter) connected at the rear of the return air hood. The device adopts a modular design; the fixed hood and movable hood are sealed together by a snap-fit ​​structure. Its baffle system forms a circulating air duct. The layout of the bottom through-hole 12 and return air duct 15 optimizes the dust collection path. The position and angle of the adjustable air knives 2 can be flexibly adjusted according to production process requirements. Combined with the overall sealing strip design, the system's airtightness is ensured, thereby creating a highly efficient dust control environment in the transition roller 1 area.

[0029] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A lithium battery substrate coating and dust removing apparatus, characterized by, It includes a dust collector return air hood, which is located in front of the transition roller (1). The dust collector return air hood is equipped with an adjustable air knife (2), which is connected to a high-pressure vortex fan (3). The dust collector return air hood is connected to a three-stage filter (4). The dust collector return air hood is a detachable structure.

2. The apparatus for coating and dusting a lithium battery substrate according to claim 1, wherein The dust collector return air hood has a rectangular structure. The dust collector return air hood includes a fixed hood and a movable hood. The fixed hood includes a rectangular plate I (5). A shield I (6) and a shield II (7) are vertically arranged on the rectangular plate I (5). A groove (8) is provided on the top of the shield II (7). The movable hood includes a rectangular plate II (9). A shield III (10) and a shield IV (11) are vertically arranged on the rectangular plate II (9). The shield IV (11) is fitted inside the shield II (7).

3. The apparatus for coating and dusting a lithium battery substrate according to claim 2, wherein The shield Ⅲ (10) is located on the left side of the shield Ⅱ (7), and the bottom of the shield Ⅲ (10) is lower than the top of the shield Ⅰ (6).

4. The apparatus for coating and dusting a lithium battery substrate according to claim 2, wherein The bottom of the rectangular plate I (5) is provided with a through hole (12), which is located between the shield I (6) and the shield II (7). A return air duct (15) is connected to the through hole (12).

5. The apparatus for coating and dusting a lithium battery substrate according to claim 1, wherein The adjustable air knife (2) is located on the left side of the baffle plate III (10), and the adjustable air knife (2) is connected to the air supply pipe (14).

6. The apparatus for coating and dedusting a lithium battery substrate according to claim 2, wherein, The fixed cover and the movable cover are provided with baffles (13) on both sides, and a sealing strip is provided at the connection between the fixed cover, the movable cover and the baffles (13).

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