A kind of opposite type air cushion steering roller and lithium battery pole piece drying equipment

Abstract

The application discloses a pair of jet type air cushion steering rollers, which comprise steering roller cavities for containing gas, the steering roller cavities are provided with air inlets and air outlets, the air outlets are communicated with the air inlets, the inner side of the air outlet is provided with a jet static pressure plate and a jet hole, the jet static pressure plate is formed by the cavity wall at the air outlet, the jet hole is arranged on the cavity wall on the opposite sides of the jet static pressure plate, and the jet hole is used for making the gas jet out on the surface of the jet static pressure plate. The application also discloses a lithium battery pole piece drying equipment, which comprises the pair of jet type air cushion steering rollers and an air floating oven arranged in sequence, and the pair of jet type air cushion steering rollers are the aforementioned pair of jet type air cushion steering rollers. The application is used for steering and drying lithium battery pole pieces.

Description

Technical Field

[0001] This invention relates to the field of lithium battery production and processing equipment technology, specifically to a through-beam type air cushion steering roller and lithium battery electrode drying equipment. Background Technology

[0002] An air-bearing roller is a non-contact roller. Typically, an air-bearing roller has air outlets on its outer periphery. High-pressure airflow blows out from the air outlets, lifting lithium battery electrode sheets and other sheets. The weight and traction force of the lithium battery electrode sheets and other sheets are balanced by the force of the high-pressure airflow from the air outlets of the air-bearing roller, thus allowing the lithium battery electrode sheets and other sheets to suspend above the air-bearing roller. This achieves non-contact conveying of lithium battery electrode sheets and other sheets, avoiding the damage to the surface structure of lithium battery electrode sheets and other sheets caused by mechanical contact between the roller surface and the surface of the lithium battery electrode sheets and other sheets when using ordinary conveying rollers (e.g., undried slurry after coating on the surface of lithium battery electrode sheets).

[0003] Current air-float rollers are generally direct-injection type. Air is blown directly outward through air holes on the surface of the air-float roller, suspending lithium battery electrodes and other sheets above it. This avoids the mechanical contact between the roller surface and the surface of the lithium battery electrodes and other sheets, which can damage their surface structure, as is the case with conventional conveyor rollers. However, when using direct-injection air-float rollers to suspend lithium battery electrodes and other sheets by blowing air directly outward through the air holes, the airflow directly impacts the surface of the lithium battery electrodes and other sheets, easily damaging their structure and affecting product yield during production. For example, the air-float roller in patent document "TW108148289 Air-float film laminating equipment and its air-float roller" uses air holes for direct air blowing to suspend the sheets. This structure above the air-float roller, which uses direct air blowing to suspend the sheets, is prone to damaging the surface structure of the sheets, affecting product yield during production.

[0004] In addition, since both sides of the lithium battery electrode are coated with undried slurry, the slurry on the surface of the lithium battery electrode is prone to physical contact with the air flotation oven during drying, which can damage the slurry on the surface of the lithium battery electrode. Therefore, the current method of drying lithium battery electrodes involves coating and drying the first side of the slurry and then coating and drying the second side. This drying method has low production efficiency and high energy consumption. Summary of the Invention

[0005] The technical problem solved by this invention is that in the prior art, when air is blown directly outward through air holes on the surface of a direct-fire type air-float roller to suspend lithium battery electrode sheets and other sheets above the air-float roller, the airflow blown out of the air holes directly impacts the surface of the lithium battery electrode sheets and other sheets, which can easily damage the surface structure of the lithium battery electrode sheets and other sheets, affecting the product yield during the production of lithium battery electrode sheets and other sheets; and the current method of drying lithium battery electrode sheets by coating and drying the first side with slurry and then coating and drying the second side with slurry, which has low drying efficiency and high energy consumption. The invention provides a solution to this problem by providing a through-beam type air cushion steering roller and lithium battery electrode drying equipment.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is: a counter-firing air cushion steering roller, comprising a steering roller cavity for containing gas, wherein an air inlet and an air outlet are provided on the steering roller cavity, and the air outlet is connected to the air inlet; a jet static pressure plate and jet holes are provided inside the air outlet, wherein the jet static pressure plate is formed by the indentation of the cavity wall at the air outlet; the jet holes are opened on the cavity walls on opposite sides of the jet static pressure plate, and the jet holes are used to make the gas ejected through the counter-firing on the surface of the jet static pressure plate.

[0007] Furthermore, the jet static pressure plate is an arc-shaped plate, and the jet holes are located at the arc-shaped edge of the jet static pressure plate.

[0008] Furthermore, multiple exhaust ports are provided, each of which is opened on the steering roller cavity, and adjacent exhaust ports are staggered. Each exhaust port is used to spray high-pressure gas to support the material.

[0009] Furthermore, a lofting connector is provided inside the cavity of the steering roller, and the air inlet is located at one end of the lofting connector. The cavity of the steering roller is connected to the air inlet through the lofting connector.

[0010] Furthermore, a dispersion mechanism is provided on the side of the steering roller cavity near the exhaust port, which is used to divert the gas in the steering roller cavity before it enters the jet hole.

[0011] Furthermore, the dispersing mechanism includes multiple air distribution chambers, each of which connects to the space inside the jet orifice and the steering roller cavity.

[0012] Furthermore, the dispersing mechanism includes multiple sets of partition plates arranged radially along the steering roller cavity, each partition plate being used to separate adjacent exhaust ports.

[0013] Furthermore, a bottom plate is provided on the side of the partition plate away from the exhaust port, and the partition plate, the bottom plate and the cavity wall of the steering roller cavity surround to form a gas distribution chamber; each gas distribution chamber has at least one gas distribution and equalization hole on its bottom plate.

[0014] A lithium battery electrode drying device includes a through-beam air cushion steering roller and an air flotation oven arranged in sequence, wherein the through-beam air cushion steering roller is the aforementioned through-beam air cushion steering roller.

[0015] Furthermore, the air flotation oven includes a box body and multiple air nozzles, each of which is disposed on opposite sides of the electrode conveying path inside the box body.

[0016] The beneficial effects of the through-beam air cushion steering roller of this invention are mainly as follows: The through-beam air cushion steering roller vents air outward through the exhaust port on the outer side of the roller body, causing lithium battery electrode sheets and other sheets to suspend outside the roller, avoiding physical contact between the lithium battery electrode sheets and other sheets and the roller, thus preventing damage to the surface structure of the lithium battery electrode sheets and other sheets from contact. A jet static pressure plate and jet holes are provided inside the exhaust port of the through-beam air cushion steering roller. The high-pressure gas introduced through the inlet first passes through the jet holes and is projected towards the jet static pressure plate, forming a static pressure chamber. Then, it disperses and coats the outer surface of the through-beam air cushion steering roller to form an air curtain, finally flowing towards the electrode sheets and other sheets to provide buoyancy. This prevents the gas discharged from the exhaust port from acting on the lithium battery electrode sheets and other sheets by directly blowing air outward through the exhaust port, avoiding direct impact damage to the surface structure of the lithium battery electrode sheets and other sheets from high-pressure gas, and improving the yield of the coating and drying production of lithium battery electrode sheets and other sheets. The through-beam air cushion steering roller suspends lithium battery electrode sheets and other sheets in an through-beam manner. Compared with the direct-beam suspension, it has less impact on the lithium battery electrode sheets and other sheets. The soft spring or damping effect it plays when the tension of the lithium battery electrode sheets and other sheets fluctuates is more gentle than the direct-beam suspension, and it provides better protection for the lithium battery electrode sheets and other sheets.

[0017] The beneficial effects achieved by the lithium battery electrode drying equipment of this invention are mainly as follows: the through-beam air cushion turning roller of the lithium battery electrode drying equipment turns the lithium battery electrode in a suspended manner, and the air flotation oven dries the lithium battery electrode in a suspended manner, so that the lithium battery electrode does not come into physical contact with the through-beam air cushion turning roller and the air flotation oven during the conveying and drying process. This avoids the lithium battery electrode with undried slurry after double-sided coating from coming into physical contact with the through-beam air cushion turning roller and the air flotation oven and damaging the slurry coating on the surface of the lithium battery electrode, thereby improving the yield of lithium battery electrode dried by the lithium battery electrode drying equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the through-beam air cushion steering roller in embodiments one, two and three of the present invention;

[0019] Figure 2 for Figure 1 Enlarged structural diagram of section A in the middle;

[0020] Figure 3This is a schematic diagram of the radial cross-sectional structure of the through-beam type air cushion steering roller of Embodiment 2 of the present invention (i.e., a schematic diagram of the dispersion mechanism);

[0021] Figure 4 for Figure 3 Enlarged structural diagram of section B in the middle;

[0022] Figure 5 This is a schematic diagram of the lithium battery electrode drying equipment in Embodiment 3 of the present invention;

[0023] Figure 6 This is a cloud map showing the static pressure distribution along the longitudinal section of the through-beam air cushion steering roller in this embodiment two.

[0024] Figure 7 This is a velocity distribution cloud map of the longitudinal section of the through-beam air cushion steering roller in this embodiment 2;

[0025] Figure 8 This is a velocity distribution cloud map of the cross section of the through-beam air cushion steering roller in this embodiment 2.

[0026] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals correspond to the same or similar components. The terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Detailed Implementation

[0027] To facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] Example 1

[0029] See Figure 1 and Figure 2 A through-beam air cushion steering roller is used for steering during the conveying process of lithium battery electrode sheets and other sheets. The through-beam air cushion steering roller exhausts air outward through the exhaust port on the outside of the roller body, so that the lithium battery electrode sheets and other sheets are suspended outside the through-beam air cushion steering roller, avoiding physical contact between the lithium battery electrode sheets and other sheets and the through-beam air cushion steering roller, thereby avoiding contact damage to the surface structure of the lithium battery electrode sheets and other sheets. At the same time, the through-beam air cushion steering roller does not act on the lithium battery electrode sheets and other sheets by directly blowing air outward through the exhaust port, avoiding direct impact damage to the surface structure of the lithium battery electrode sheets and other sheets by high-pressure gas.

[0030] See Figure 1 and Figure 2The through-beam air cushion steering roller 1 includes a steering roller cavity 11, on which an air inlet 12 and multiple exhaust ports 13 are provided. Each exhaust port 13 is evenly distributed on the outside of the steering roller cavity 11, and each exhaust port 13 communicates with the air inlet 12 through the internal space of the steering roller cavity 11. Thus, the air inlet 12 and the multiple exhaust ports 13 are connected through the space within the steering roller cavity 11. High-pressure gas can enter the steering roller cavity 11 through the air inlet 12 and then be evenly discharged through each exhaust port 13. The buoyancy generated by the high-pressure gas discharged from each exhaust port 13 suspends the lithium battery electrode sheets and other sheets conveyed on the outside of the through-beam air cushion steering roller 1. The steering roller cavity 11 can be configured as a fan-shaped roller structure with a cross-section of 90 degrees, 180 degrees, etc. In this embodiment, the steering roller cavity 11 is configured as a fan-shaped roller structure with a cross-section of 90 degrees, thereby turning the lithium battery electrode sheets and other sheets 90 degrees. The through-beam air cushion steering roller exhausts air outward through the exhaust port on the outside of the roller body, causing the lithium battery electrode and other sheets to suspend outside the through-beam air cushion steering roller, avoiding physical contact between the lithium battery electrode and other sheets and the through-beam air cushion steering roller, thereby preventing the through-beam air cushion steering roller from contacting and damaging the surface structure of the lithium battery electrode and other sheets.

[0031] See Figure 1 and Figure 2 Each of the exhaust ports 13 has a jet static pressure plate 14 disposed inside it. The jet static pressure plate 14 is positioned inside the exhaust port 13 opposite to the outer opening of the exhaust port 13. The jet static pressure plate 14 is formed by the indentation of the cavity wall at the exhaust port 13. The jet holes 15 are formed on the cavity walls on opposite sides of the jet static pressure plate 14. The outer opening of the exhaust port 13 communicates with the inner space of the steering roller cavity 11 through the jet holes 15, and then communicates with the air inlet 12 through the inner space of the steering roller cavity 11. Thus, the high-pressure gas introduced into the air inlet 12 can... First, the gas passes through the jet hole 15 and then exits through the exhaust port 13. The jet hole 15 is located on the inner side of the exhaust port 13. The high-pressure gas introduced into the air inlet 12 first passes through the jet hole 15 and is projected onto the jet static pressure plate 14 to form a static pressure chamber. Then, it is dispersed and covered on the outer surface of the projecting air cushion steering roller to form an air curtain. Finally, it flows to the electrode sheet and other sheets to play a buoyancy role, so that the gas discharged from the exhaust port 13 does not act on the lithium battery electrode sheet and other sheets by directly blowing air outward through the exhaust port, thus avoiding the direct impact of high-pressure gas on the surface structure of the lithium battery electrode sheet and other sheets.

[0032] See Figure 1 and 2The jet static pressure plate 14 is an arc-shaped plate that protrudes into the inside of the exhaust port 13. The jet hole 15 is located at the arc-shaped edge of the jet static pressure plate 14. Thus, the high-pressure gas introduced into the air inlet 12 first passes through the jet hole 15 and is projected onto the arc-shaped jet static pressure plate 14 to form a static pressure cavity. Then, it is dispersed and covered on the outer surface of the projecting air cushion steering roller 1 to form an air curtain. Finally, it flows to the electrode sheet and other sheets to play a buoyancy role, further avoiding direct impact damage to the surface structure of the lithium battery electrode sheet and other sheets caused by the high-pressure gas.

[0033] See Figure 1 Each of the exhaust ports 13 is used to eject high-pressure gas to support sheet materials such as lithium battery electrodes. Multiple rows of exhaust ports 13 are arranged along the axial direction of the steering roller cavity 11, with multiple ports in each row. The exhaust ports 13 in adjacent rows are staggered, resulting in a more uniform distribution of exhaust ports 13 on the outer side of the through-beam air cushion steering roller 1. This also ensures that the high-pressure gas discharged from each exhaust port 13 is more evenly distributed, allowing the lithium battery electrodes and other sheets to float more stably on the outer side of the through-beam air cushion steering roller 1. This prevents the high-pressure gas discharged from the exhaust ports 13 from acting on localized areas of the lithium battery electrodes and other sheets, thus avoiding localized damage from strong impacts.

[0034] See Figure 1 The inner side of the steering roller cavity 11 is provided with a lofting connector 17, and the air inlet 12 is provided at one end of the lofting connector 17. The steering roller cavity 11 is connected to the air inlet 12 through the cavity structure inside the lofting connector 17. Thus, high-pressure air can enter the steering roller cavity 11 through the air inlet 12 and the lofting connector 17, and finally be discharged from the exhaust port 13.

[0035] See Figure 1 and 2 In this embodiment, when the through-beam air cushion steering roller is used to steer and transport long strips of lithium battery electrode sheets, the long strips of lithium battery electrode sheets pass outside the through-beam air cushion steering roller 1. High-pressure gas enters the lofting connector 17 and the steering roller cavity 11 from the air inlet 12, and then enters the outside of the jet static pressure plate 14 through the jet hole 15. The jet static pressure plate 14, with its arc-shaped structure, evenly reflects the gas to the exhaust port 13 of the through-beam air cushion steering roller 1, suspending the lithium battery electrode sheets outside the through-beam air cushion steering roller. The high-pressure gas discharged from the exhaust port 13 is evenly discharged through each exhaust port 13 and reflected by the jet static pressure plate 14, so that the high-pressure gas is evenly blown out from all parts of the outside of the through-beam air cushion steering roller 1. This can avoid the high-pressure gas directly impacting and damaging the surface structure of the lithium battery electrode sheets, thus preventing damage to the surface of the lithium battery electrode sheets.

[0036] Example 2

[0037] See Figures 1-4The overall structure of the through-beam air cushion steering roller in this embodiment is the same as that in Embodiment 1, but the structure of the through-beam air cushion steering roller is further improved based on Embodiment 1, so that the high-pressure gas discharged from each exhaust port 13 of the through-beam air cushion steering roller is more uniform. For the similarities between this embodiment and Embodiment 1, please refer to Embodiment 1. The improvements are further explained below.

[0038] See Figures 1-4 A dispersion mechanism 16 is provided inside the steering roller cavity 11 near each of the exhaust ports 13. The dispersion mechanism 16 is used to divert the gas inside the steering roller cavity 11 before it enters the jet hole 15. The high-pressure air entering the steering roller cavity 11 through the air inlet 12 is dispersed by the dispersion mechanism 16 before entering the jet hole 15. This avoids uneven distribution of the high-pressure air inside the steering roller cavity 11 to each exhaust port 13 and prevents different airflow sizes at different exhaust ports 13.

[0039] See Figure 3 and Figure 4 The dispersing mechanism 16 includes multiple gas distribution chambers 161. The inner side of each gas distribution chamber 161 is connected to the lofting connector 17 through the space inside the steering roller cavity 11. The outer side of each gas distribution chamber 161 is connected to a set of opposing jet holes 15. Thus, the high-pressure air in the air inlet 12, the cavity inside the lofting connector 17, and the steering roller cavity 11 can be evenly distributed through each gas distribution chamber 161 and then reach the exhaust port 13 through the jet holes 15. This makes the gas blown out from each exhaust port 13 more uniform, which can make the lithium battery electrode and other sheets more stably suspended outside the opposing air cushion steering roller 1. This avoids the high-pressure gas discharged from the exhaust port 13 acting on local positions of the lithium battery electrode and other sheets, thereby avoiding local damage to the lithium battery electrode and other sheets from strong impacts.

[0040] See Figure 3 and Figure 4 A plurality of partition plates 162 are radially arranged on one side of the steering roller cavity 11 near each of the exhaust ports 13, and each partition plate 162 is used to separate adjacent exhaust ports 13. Thus, the high-pressure air in the steering roller cavity 11 can be evenly distributed to each exhaust port 13 through each partition plate 162.

[0041] See Figure 3 and Figure 4A base plate 163 is provided on the side of the partition plate 162 away from the exhaust port 13. The partition plate 162, the base plate 163, and the cavity wall of the steering roller cavity 11 surround and form a gas distribution chamber 161. Each gas distribution chamber 161 has at least one gas distribution and equalization hole 164 on its base plate 163. That is, each partition plate 162 divides the space outside the base plate 163 into multiple gas distribution chambers 161, thereby improving the dispersion of high-pressure air in the steering roller cavity 11. Furthermore, the partition plates 162 can be stably installed together by the base plate 163, making the structure of the gas distribution chamber 161 more stable. Each gas distribution chamber 161 is connected to the outside of the gas distribution chamber 161 through at least one gas distribution and equalization hole 164.

[0042] See Figures 6-8 Tables 1 and 2, the cushioning and damping effects of the through-beam air cushion steering roller under substrate tension fluctuations are analyzed and verified using a virtual prototype method as follows: the air velocity at inlet 12 is set to 15 m / s, the distance H between the sheet outside the through-beam air cushion steering roller and the roller surface is 25 mm and 10 mm respectively, and the external environment is an ideal atmospheric pressure of 101325 Pa. Calculations are performed to obtain the common flow field distribution results: cross-sectional velocity distribution cloud map (e.g.) Figure 8 ), longitudinal velocity distribution cloud map (such as Figure 7 ), longitudinal section static pressure distribution cloud map (such as Figure 6 The average static pressure on the roller surface when H is 25 mm is 101462.65 Pa and the average static pressure on the substrate surface is 101325.55 Pa (see Table 2), with a pressure difference of 137.1 Pa; the average static pressure on the roller surface when H is 10 mm is 101873.78 Pa and the average static pressure on the substrate surface is 101333.77 Pa (see Table 1), with a pressure difference of 540.01 Pa.

[0043] Table 1 shows the external static pressure data of the through-type air cushion steering roller when the distance between a sheet material and the roller surface is 10mm.

[0044]

[0045] Table 2 shows the external static pressure data of the through-beam air cushion steering roller when the distance between the sheet and the roller surface is 25mm.

[0046]

[0047] See Figure 1 and 2In this embodiment, when the through-beam air cushion steering roller is used to steer and transport long strips of lithium battery electrode sheets, the long strips of lithium battery electrode sheets pass outside the through-beam air cushion steering roller 1. High-pressure gas enters the lofting connector 17 and the steering roller cavity 11 from the air inlet 12, and after being processed by the dispersion mechanism 16, it enters the outside of the jet static pressure plate 14 through the jet hole 15. The jet static pressure plate 14 with its arc-shaped structure is evenly reflected to the outside of the exhaust port 13 of the through-beam air cushion steering roller 1, suspending the lithium battery electrode sheets outside the through-beam air cushion steering roller. The high-pressure gas discharged from the exhaust port 13 is evenly discharged through each exhaust port 13, and after being dispersed by the dispersion mechanism 16 and reflected by the jet static pressure plate 14, the high-pressure gas is evenly blown out from all parts of the outside of the through-beam air cushion steering roller 1. This can avoid the high-pressure gas directly impacting and damaging the surface structure of the lithium battery electrode sheets, thus preventing damage to the surface of the lithium battery electrode sheets.

[0048] Example 3

[0049] See Figures 1-5 A lithium battery electrode drying device including the through-beam air cushion steering roller of Embodiment 1 or Embodiment 2, comprising the through-beam air cushion steering roller 1 and an air flotation oven 2, wherein the air flotation oven 2 is disposed behind the through-beam air cushion steering roller 1, the air flotation oven 2 is a tunnel-type air flotation oven, and the through-beam air cushion steering roller 1 is the through-beam air cushion steering roller of Embodiment 1 or Embodiment 2. When the lithium battery electrode drying device with the through-beam air cushion steering roller is in operation, the undried lithium battery electrode 3 after double-sided coating is turned by the through-beam air cushion steering roller 1 from a vertical state to a horizontal state and enters the air flotation oven 2, where it is suspended and dried. The through-beam air cushion turning roller 1 of the lithium battery electrode drying equipment turns the lithium battery electrode 3 by suspension, and the air flotation oven 2 dries the lithium battery electrode 3 by suspension. This ensures that the lithium battery electrode 3 does not come into physical contact with the through-beam air cushion turning roller 1 and the air flotation oven 2 during the conveying and drying process. This avoids the lithium battery electrode 3, after double-sided coating, from being damaged by physical contact with the through-beam air cushion turning roller 1 and the air flotation oven 2, thereby improving the yield of lithium battery electrode dried by the lithium battery electrode drying equipment.

[0050] See Figure 5The air flotation oven 2 includes a chamber 21 and multiple air nozzles 22. Each air nozzle 22 is positioned on opposite sides of the electrode conveying path within the chamber 21. When the lithium battery electrode 3, coated with slurry on both sides, passes between the air nozzles 22 within the chamber 21, the dry gas blown from the nozzles 22 can either suspend the lithium battery electrode 3 between the upper and lower air nozzles 22 or dry it using the dry gas blown from the upper and lower air nozzles 22. Ideally, the air nozzles 22 are staggered on opposite sides of the electrode conveying path within the chamber 21, resulting in a wavy conveying path for the lithium battery electrode 3 within the air flotation oven 2. This longer conveying path leads to better drying and more stable transport.

[0051] See Figures 1-5 In this embodiment, when the lithium battery electrode drying equipment is working, the lithium battery electrode 3 after being coated with slurry on both sides is changed from a vertical state to a horizontal state by the opposing air cushion turning roller 1. The lithium battery electrode 3 enters the air flotation oven 2 from the horizontal state. In the air flotation oven 2, the lithium battery electrode 3 is suspended and dried by the drying gas blown out by the air nozzles 22 on the upper and lower sides. Finally, it is wound up and stored by the winding mechanism set behind the air flotation oven 2.

[0052] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A type of through-beam air cushion steering roller, characterized in that: The system includes a steering roller cavity (11) for containing gas, wherein the steering roller cavity (11) is provided with an air inlet (12) and an air outlet (13), and the air outlet (13) is connected to the air inlet (12); a jet static pressure plate (14) and a jet hole (15) are provided inside the air outlet (13), wherein the jet static pressure plate (14) is formed by the recess of the cavity wall at the air outlet (13); the jet hole (15) is provided on the cavity wall on opposite sides of the jet static pressure plate (14), and the jet hole (15) is used to make the gas jet out on the surface of the jet static pressure plate (14); A dispersion mechanism (16) is provided on the side of the steering roller cavity (11) near the exhaust port (13). The dispersion mechanism (16) is used to divert the gas in the steering roller cavity (11) before entering the jet hole (15). The dispersing mechanism (16) includes a plurality of gas distribution chambers (161), each of which is connected to the space inside the jet hole (15) and the steering roller cavity (11); The dispersing mechanism (16) includes multiple sets of partition plates (162) arranged radially along the steering roller cavity (11), each partition plate (162) being used to separate adjacent exhaust ports (13); A bottom plate (163) is provided on the side of the partition plate (162) away from the exhaust port (13). The partition plate (162), the bottom plate (163) and the cavity wall of the steering roller cavity (11) surround each other to form a gas distribution chamber (161). Each gas distribution chamber (161) has at least one gas distribution and equalization hole (164) on its bottom plate (163).

2. The through-beam air cushion steering roller according to claim 1, characterized in that: The jet static pressure plate (14) is an arc-shaped plate, and the jet hole (15) is located at the arc-shaped edge of the jet static pressure plate (14).

3. The through-beam type air cushion steering roller according to claim 2, characterized in that: Multiple exhaust ports (13) are provided, each of which is opened on the steering roller cavity (11). Adjacent exhaust ports (13) are staggered, and each exhaust port (13) is used to spray high-pressure gas to support the material.

4. The through-beam air cushion steering roller according to claim 3, characterized in that: The inner side of the steering roller cavity (11) is provided with a lofting connector (17), and the air inlet (12) is located at one end of the lofting connector (17). The steering roller cavity (11) is connected to the air inlet (12) through the lofting connector (17).

5. A lithium battery electrode drying device, characterized in that: It includes a through-beam air cushion steering roller (1) and an air flotation oven (2) arranged in sequence, wherein the through-beam air cushion steering roller (1) is the through-beam air cushion steering roller as described in any one of claims 1 to 4.

6. The lithium battery electrode drying equipment according to claim 5, characterized in that: The air flotation oven (2) includes a box body (21) and multiple air nozzles (22), each of which is arranged on opposite sides of the electrode conveying path inside the box body (21).

Images