A dust removal structure and system that forms a reflux

Abstract

This application relates to the field of lithium battery production technology, specifically disclosing a dust removal structure and system that forms a reflux flow. The dust removal system includes: a dust removal platform; a settling tank on the dust removal platform; a positive pressure jet duct and a negative pressure suction duct within the settling tank; and the negative pressure suction ducts located on both sides of the positive pressure jet duct along its width. In this solution, the dust removal platform can be positioned directly opposite the area to be dusted, and the positive pressure jet duct sprays compressed high-speed airflow into the area to be dusted to blow away contaminants from the material surface; the negative pressure suction ducts simultaneously absorb contaminants from both sides, avoiding the risk of secondary dust generation and secondary contamination of the material. Since both the positive pressure jet duct and the negative pressure suction duct are located within the settling tank, an airflow circulation channel is formed between them, while simultaneously creating an airflow field on the settling tank, effectively controlling the diffusion of contaminants and improving dust removal efficiency and effect.

Description

Technical Field

[0001] This application relates to the field of lithium battery production technology, and in particular to a dust removal structure and dust removal system that forms a reflux. Background Technology

[0002] Dust may be generated in multiple processes such as slitting, rolling, welding, and assembly during the production of lithium batteries. To avoid the introduction of dust and other pollutants, the materials are subjected to several dust removal procedures during the production process to ensure the quality and safety of the final product.

[0003] Common methods for dust removal from materials include brush dust removal and negative pressure dust removal. However, negative pressure dust removal is not very effective for some highly adhered pollutants. Therefore, some equipment combines brush dust removal with negative pressure dust removal, that is, while using brushes to clean the electrode surface, a negative pressure dust removal port is set up for adsorption and dust removal.

[0004] However, during the dust removal process, some of the pollutants that are lifted up will adhere to the brush and form residues, which not only affects the dust removal effect but also poses a risk of secondary pollution to the materials. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a dust removal structure and system that forms a reflux, in order to solve the problem of poor dust removal effect on materials and the risk of secondary pollution during the lithium battery production process.

[0006] To achieve the above-mentioned technical objectives, the first aspect of this application provides a dust removal structure that forms a reflux, comprising: a dust removal table;

[0007] The dust removal platform is equipped with a settling tank;

[0008] The dust removal platform is equipped with a positive pressure air jet channel and a negative pressure air suction channel in the settling tank;

[0009] The negative pressure intake duct is located on both sides of the positive pressure exhaust duct along its width.

[0010] Furthermore, the width of the negative pressure intake channel is greater than the width of the positive pressure exhaust channel.

[0011] Furthermore, the positive pressure jet duct is provided with a number of alternating gaps and voids along the direction of airflow ejection;

[0012] The width of the gap is greater than the width of the slit, and the gap has a constriction structure so that the positive pressure jet channel forms a multi-stage compression channel.

[0013] Furthermore, the dust removal table includes: a cover and a box;

[0014] The cover fits over the top of the box.

[0015] The settling trough is provided on the top surface of the cover;

[0016] The box body is provided with a positive pressure channel and a negative pressure channel;

[0017] The positive pressure channel is connected to the positive pressure jet duct;

[0018] The negative pressure channel is connected to the negative pressure intake channel.

[0019] Furthermore, the negative pressure channel includes two channels, which are respectively disposed on both sides of the positive pressure channel in the width direction;

[0020] The negative pressure inhalation channel includes two;

[0021] The two negative pressure inhalation channels are respectively connected to the two negative pressure channels;

[0022] The two negative pressure channels are interconnected.

[0023] Furthermore, an embedding block is provided at the bottom of the cover;

[0024] The box body is provided with protrusions;

[0025] The positive pressure jet channel is disposed in the embedded block;

[0026] The positive pressure channel is disposed on the protrusion;

[0027] The embedded block and the protruding block are in a sealing contact.

[0028] Furthermore, the top surface of the protrusion is provided with an interlocking channel;

[0029] The fitting channel surrounds the outer periphery of the positive pressure channel;

[0030] The embedding block is embedded within the fitting channel.

[0031] Furthermore, the bottom surface of the embedded block is provided with a uniform air distribution plate that covers the bottom surface of the positive pressure jet duct.

[0032] Furthermore, the air distribution plate is provided with a plurality of evenly distributed ventilation holes;

[0033] The vent connects the positive pressure jet duct and the positive pressure channel.

[0034] Furthermore, the negative pressure intake duct is symmetrically arranged on both sides of the positive pressure exhaust duct.

[0035] The first aspect of this application provides a dust removal system, including the dust removal structure that forms a reflux as described above.

[0036] As can be seen from the above technical solutions, this application provides a dust removal structure and dust removal system that forms a reflux; wherein, the dust removal structure that forms a reflux includes: a dust removal platform; a settling trough is provided on the dust removal platform; a positive pressure air jet channel and a negative pressure air intake channel are provided on the dust removal platform in the settling trough; the negative pressure air intake channel is provided on both sides of the positive pressure air jet channel along the width direction.

[0037] In this solution, the dust removal platform can be positioned directly opposite the area to be dusted. A positive pressure jet duct sprays compressed high-speed airflow into the area to remove contaminants from the material surface. A negative pressure suction duct simultaneously extracts contaminants from both sides, avoiding the risk of secondary dust generation and contamination of the materials. Since both the positive and negative pressure jet ducts are located within the settling tank, they form an airflow circulation channel and simultaneously create an airflow field on the settling tank, effectively controlling contaminant diffusion and improving dust removal efficiency and effectiveness. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 A top view of a dust removal structure forming a reflux, provided in an embodiment of this application;

[0040] Figure 2 A perspective view of a dust removal structure forming a reflux, provided as an embodiment of this application;

[0041] Figure 3 A cross-sectional view of a dust removal structure forming a reflux, provided in an embodiment of this application;

[0042] Figure 4 A cross-sectional view of a dust removal structure forming a reflux, provided for another embodiment of this application;

[0043] Figure 5 A perspective view of a cover in a dust removal structure that forms a reflux, provided in another embodiment of this application;

[0044] Figure 6 A perspective view of a housing in a dust collection structure that forms a reflux, provided in another embodiment of this application;

[0045] In the diagram: 10. Dust removal platform; 11. Settling tank; 12. Positive pressure air jet duct; 13. Negative pressure air intake duct; 14. Box body; 15. Cover body; 16. Outer extension; 121. Gap; 122. Void; 141. Positive pressure channel; 142. Negative pressure channel; 143. Protrusion block; 144. Fitting channel; 151. Embedded block; 152. Air distribution plate; 153. Vent hole; 154. Negative pressure interface; 155. Positive pressure interface. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0047] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0049] Please see Figure 1 and Figure 2 This application provides a dust removal structure that forms a backflow, comprising: a dust removal table 10. A settling tank 11 is provided on the dust removal table 10; the settling tank 11 refers to the tank structure located below the end face of the dust removal table 10. A positive pressure air jet duct 12 and a negative pressure air intake duct 13 are provided within the settling tank 11 on the dust removal table 10; the negative pressure air intake duct 13 is located on both sides of the positive pressure air jet duct 12 along its width direction. The width direction can refer to... Figure 1 The x-axis direction in the diagram.

[0050] After the high-speed airflow is ejected from the positive pressure jet duct 12, the airflow impacts the surface of the material and can blow away the contaminants on the surface of the material. At the same time, the airflow entering the settling tank 11 will diffuse to both sides due to the decrease in flow velocity and air pressure. As a low-pressure zone will be formed on both sides of the airflow to adsorb the surrounding airflow, this pressure difference will drive the airflow to flow towards the negative pressure suction duct 13, thereby forming a directional wind field between the positive pressure jet duct 12 and the negative pressure suction duct 13.

[0051] Under the action of negative pressure suction duct 13 and directional air field, dust and other pollutants blown by the airflow are sucked into negative pressure suction duct 13, ensuring dust removal effect while avoiding secondary pollution of materials by these pollutants.

[0052] Since the bottom of the settling trough 11 is lower than the end face of the dust removal platform 10, both the positive pressure air jet duct 12 and the negative pressure air intake duct 13 are lower than the end face of the dust removal platform 10. During operation, the settling trough 11 can assist in the formation of the airflow.

[0053] Specifically, the sidewalls and bottom of the trough 11 are used to form a closed or semi-closed space to create a physical boundary, preventing disorderly airflow diffusion and reducing interference from other airflows in the open environment. At the same time, the physical space formed by the trough 11 can concentrate the pressure gradient between high-pressure and low-pressure areas in the wind field, thereby driving efficient airflow, suppressing the formation of eddies, and reducing energy loss.

[0054] In one implementation, the negative pressure suction channel 13 can be located at the edge of the settling tank 11.

[0055] It should be noted that in the above embodiments, the positive pressure jet duct 12 can spray high-speed airflow by connecting to a blower; the negative pressure suction duct 13 can generate negative pressure adsorption force by connecting to a vacuum generator.

[0056] In a more specific embodiment, the width of the negative pressure intake duct 13 is greater than the width of the positive pressure exhaust duct 12.

[0057] The wider negative pressure intake channel 13 reduces the flow resistance of the incoming gas, reduces turbulence and eddies during airflow, and reduces airflow blockage caused by narrow channels. Furthermore, the ejected airflow diffuses naturally, with a diffusion shape that approximates a fan shape; the wider negative pressure intake channel 13 can better match the diffused airflow, reducing the possibility of edge airflow not being adsorbed and overflowing.

[0058] In one embodiment, see Figures 1 to 3 The positive pressure jet duct 12 is provided with a number of alternating slits 121 and gaps 122 along the direction of airflow ejection; the width of the gap 122 is greater than the width of the slit 121, and the gap 122 has a constriction structure, so that the positive pressure jet duct 12 forms a multi-stage compression flow channel.

[0059] The direction of the airflow ejection can be as follows: Figure 3 As shown in the z-axis direction, the airflow gradually compresses and increases in pressure as it flows from the gap 122 into the slit 121. The multi-stage compression structure composed of multiple slits 121 and gaps 122 can compress the airflow multiple times, thereby forming a high-pressure airflow by squeezing the gas in multiple layers.

[0060] In one embodiment, see Figures 1 to 6 The dust removal table 10 includes a cover 15 and a box 14; the cover 15 covers the top of the box 14. The box 14 can be made in one piece.

[0061] The settling trough 11 is located on the top surface of the cover 15, and the two are connected to each other with a sealed connection. The box 14 is provided with a positive pressure channel 141 and a negative pressure channel 142; the positive pressure channel 141 is connected to the positive pressure air jet channel 12; the negative pressure channel 142 is connected to the negative pressure air intake channel 13.

[0062] In this embodiment, as Figure 5 As shown, the side of the box 14 has an opening structure; the side of the cover 15 covers the side of the box 14, and the side of the cover 15 has a negative pressure port 154 and a positive pressure port 155; one end of the negative pressure port 154 is connected to the negative pressure channel 142, and the other end is connected to the vacuum generator. One end of the positive pressure port 155 is connected to the positive pressure channel 141, and the other end is connected to the high-speed airflow pipe.

[0063] The positive pressure channel 141 is elongated; the gas flowing in from the high-speed airflow pipe enters the positive pressure channel 141 and then enters the positive pressure jet duct 12, and is ejected outward after being compressed through multiple stages in the positive pressure jet duct 12.

[0064] It should be noted that, for ease of explanation, the example given is that the cover 15 is positioned above the box 14. In practical applications, the dust removal table 10 can be vertically positioned so that the cover 15 is located on the side of the box 14 in the horizontal direction.

[0065] In one implementation, the negative pressure intake duct 13 can be configured to surround the positive pressure exhaust duct 12.

[0066] In one embodiment, there are two negative pressure channels 142, which are respectively disposed on both sides of the width direction of the positive pressure channel 141; there are two negative pressure inhalation channels 13; the two negative pressure inhalation channels 13 are respectively connected to the two negative pressure channels 142; the two negative pressure channels 142 are interconnected.

[0067] The two interconnected negative pressure channels 142 can ensure that the intake pressure of the two negative pressure intake channels 13 is equal, thus ensuring the uniformity of the wind field.

[0068] In practical applications, along the length of the positive pressure jet duct 12, the length of the positive pressure jet duct 12 is configured to be greater than the length of the material area to be dusted. In this case, the negative pressure suction duct 13 is configured on both sides of the positive pressure jet duct 12 to meet the dust removal requirements. Correspondingly, the length of the negative pressure suction duct 13 matches that of the positive pressure jet duct 12 to ensure full coverage of the material area to be dusted.

[0069] In one embodiment, the bottom of the cover 15 is provided with an embedded block 151; the box 14 is provided with a protrusion 143; the positive pressure jet channel 12 is provided on the embedded block 151; the positive pressure channel 141 is provided on the protrusion 143; the embedded block 151 and the protrusion 143 are sealed and abutted.

[0070] In practical applications, the sealed contact between the embedded block 151 and the raised block 143 ensures the stability of airflow and dust removal effect, preventing gas leakage. The sealed contact between the embedded block 151 and the raised block 143 can be achieved through sealing structures such as sealing rings.

[0071] In a more specific embodiment, the top surface of the protrusion 143 is provided with a fitting channel 144; the fitting channel 144 surrounds the outer periphery of the positive pressure channel 141; the insert block 151 is embedded in the fitting channel 144.

[0072] The embedded engagement of the fitting channel 144 and the insert block 151 ensures a secure and sealed connection between the positive pressure channel 141 and the positive pressure jet channel 12.

[0073] In applications, such as Figure 2 As shown, the top surface of the cover 15 forms an extension 16 on the outer periphery of the sink 11. When the cover 15 is connected to the box 14, the extension 16 covers the box 14, and the negative pressure suction channel 13 is located above the negative pressure channel 142.

[0074] Based on the above embodiments, the negative pressure intake duct 13 can be configured to be symmetrically arranged on both sides of the positive pressure jet duct 12. Correspondingly, the negative pressure channel 142 is also symmetrically arranged on both sides of the positive pressure channel 141 to ensure the correspondence between the negative pressure intake duct 13 and the negative pressure channel 142, and to ensure the uniform distribution of the airflow.

[0075] In one embodiment, the bottom surface of the embedded block 151 is provided with a uniform air distribution plate 152 covering the bottom surface of the positive pressure jet duct 12; the uniform air distribution plate 152 can increase the uniformity of airflow entering the positive pressure jet duct 12 from the positive pressure channel 141, reduce airflow dead zones, and improve dust removal effect.

[0076] In application, the air distribution plate 152 is provided with a plurality of evenly distributed air vents 153; the air vents 153 connect the positive pressure jet duct 12 and the positive pressure channel 141.

[0077] The high-speed airflow in the positive pressure channel 141 enters the positive pressure jet channel 12 through the vent 153.

[0078] The second aspect of this application provides a dust removal system, which includes the dust removal structure forming a backflow as described in any of the above embodiments, and a vacuum generator connected to a negative pressure interface 154, a high-speed airflow pipe connected to a positive pressure interface 155, a fan connected to the high-speed airflow pipe, and a filtration mechanism connected to the vacuum generator. The filtration mechanism can be an existing mechanism capable of intercepting and collecting adsorbed impurities, and then centrally processing the collected dust.

[0079] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although the present application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dust removal structure that forms a reflux, characterized in that, include: Dust removal table (10); The dust removal platform (10) is equipped with a settling tank (11); The dust removal platform (10) is provided with a positive pressure air jet channel (12) and a negative pressure air intake channel (13) in the settling tank (11). The negative pressure intake channel (13) is disposed on both sides of the positive pressure jet channel (12) along the width direction; The dust removal table (10) includes: a cover (15); The settling trough (11) is provided on the top surface of the cover (15); An embedded block (151) is provided at the bottom of the cover (15). The bottom surface of the embedded block (151) is provided with a uniform air plate (152) that covers the bottom surface of the positive pressure jet duct (12).

2. The dust removal structure for forming a reflux according to claim 1, characterized in that, The width of the negative pressure intake channel (13) is greater than the width of the positive pressure exhaust channel (12).

3. The dust removal structure for forming a reflux according to claim 1, characterized in that, The positive pressure jet duct (12) is provided with a number of alternating slits (121) and gaps (122) along the direction of airflow ejection. The width of the gap (122) is greater than the width of the slit (121), and the gap (122) has a constriction structure so that the positive pressure jet channel (12) forms a multi-stage compression channel.

4. The dust removal structure for forming a reflux according to claim 1, characterized in that, The dust removal table (10) includes: a box body (14); The cover (15) covers the top of the box (14); The box (14) is provided with a positive pressure channel (141) and a negative pressure channel (142). The positive pressure channel (141) is connected to the positive pressure jet channel (12). The negative pressure channel (142) is connected to the negative pressure intake channel (13).

5. The dust removal structure for forming a reflux according to claim 4, characterized in that, The negative pressure channel (142) includes two channels, which are respectively located on both sides of the positive pressure channel (141) in the width direction; The negative pressure inhalation channel (13) comprises two; The two negative pressure inhalation channels (13) are respectively connected to the two negative pressure channels (142). The two negative pressure channels (142) are interconnected.

6. The dust removal structure for forming a reflux according to claim 4, characterized in that, The box body (14) is provided with a protrusion (143). The positive pressure jet duct (12) is disposed in the embedded block (151); The positive pressure channel (141) is disposed on the protrusion (143). The embedded block (151) and the protruding block (143) are in sealed contact.

7. The dust removal structure for forming a reflux according to claim 6, characterized in that, The top surface of the protrusion (143) is provided with a fitting channel (144). The fitting channel (144) surrounds the outer periphery of the positive pressure channel (141); The embedding block (151) is embedded in the fitting channel (144).

8. The dust removal structure for forming a reflux according to claim 4, characterized in that, The air distribution plate (152) is provided with a plurality of evenly distributed air vents (153). The vent (153) connects the positive pressure jet duct (12) and the positive pressure channel (141).

9. A dust removal system, characterized in that, Includes the dust removal structure that forms a reflux as described in any one of claims 1 to 8.

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