Slurry defoaming device and coating apparatus

Abstract

The embodiment of the application provides a slurry defoaming device and a coating equipment. The slurry defoaming device comprises a box body, a feeding cavity and a discharging cavity which are communicated in the box body, a rotating roller which is rotationally arranged in the box body and partially located in the feeding cavity, and the rotating roller is configured to rotate relative to the box body in a vacuum environment to attach the slurry in the feeding cavity to the rotating roller with a preset thickness and take the slurry away from the feeding cavity, and a scraping mechanism which is arranged in the box body and abuts against the rotating roller, and the scraping mechanism is configured to scrape the slurry on the rotating roller away from the rotating roller and guide the slurry to the discharging cavity. The slurry is defoamed by rotating with the rotating roller, the thickness is uniform, and the slurry is not subjected to high-speed rotation and flywheel impact, so that the property of the defoamed slurry is relatively stable, and the defoaming effect is relatively good.

Description

Technical Field

[0001] This application relates to the field of slurry degassing technology, and in particular to a slurry degassing device and coating equipment. Background Technology

[0002] Before coating the battery, the slurry needs to be degassed to improve its performance and coating effect.

[0003] In the prior art, slurry degassing devices achieve degassing by causing the slurry to flow slowly down the wall under gravity, or by stirring the slurry or throwing the slurry, so that the bubbles in the slurry break down in a vacuum environment.

[0004] However, the existing slurry degassing devices have poor degassing performance. Utility Model Content

[0005] This application provides a slurry degassing device and a coating equipment to improve the degassing effect of the slurry degassing device.

[0006] In a first aspect, embodiments of this application provide a slurry degassing device, comprising:

[0007] The box body has a connected inlet chamber and outlet chamber.

[0008] A rotating roller is rotatably disposed inside the housing, with part of the rotating roller located inside the feeding chamber. The rotating roller is configured to rotate relative to the housing in a vacuum environment to adhere the slurry in the feeding chamber to itself with a preset thickness and carry it away from the feeding chamber.

[0009] The scraping mechanism is located inside the housing and abuts against the rotating roller. The scraping mechanism is configured to scrape the slurry off the rotating roller and guide the slurry to the discharge chamber.

[0010] In one possible implementation, the slurry degassing device provided in this application includes a scraping mechanism comprising:

[0011] The first scraping assembly is disposed on one side of the rotating roller, and there is a gap between the first scraping assembly and the circumferential surface of the rotating roller. The first scraping assembly controls the slurry on the rotating roller to a preset thickness through the gap.

[0012] The second scraping assembly is located on the other side of the rotating roller and spaced apart from the first scraping assembly. The second scraping assembly abuts against the circumferential surface of the rotating roller. The second scraping assembly scrapes the slurry of the preset thickness off the rotating roller and guides the slurry to the discharge chamber.

[0013] In one possible implementation, the slurry degassing device provided in this application embodiment has a first scraping assembly and a second scraping assembly arranged sequentially and spaced apart on opposite sides of the rotating roller along the rotation direction of the rotating roller.

[0014] In one possible implementation, the slurry degassing device provided in this application embodiment includes at least one of the first scraping assembly and the second scraping assembly, comprising:

[0015] Fasteners are attached to the housing.

[0016] An adjusting component, which is slidably mounted on a fixed component;

[0017] The scraper is connected to the side of the adjusting member facing the rotating roller and is located between the fixing member and the adjusting member. The length extension direction of the scraper is consistent with the extension direction of the rotation axis of the rotating roller.

[0018] The scraper is configured to move relative to the stationary member under the action of the adjusting member, so as to move closer to or further away from the rotating roller.

[0019] In one possible implementation, the slurry degassing device provided in this application embodiment further includes at least one of the first scraping assembly and the second scraping assembly, which includes:

[0020] Fasteners connect the adjusting component and the fixing component in sequence to secure the adjusting component to the fixing component;

[0021] An operating component is connected to an adjusting component, and the operating component drives the adjusting component to move relative to the fixed component.

[0022] In one possible implementation, the slurry degassing device provided in this application embodiment has multiple fasteners arranged at intervals along the extension direction of the adjusting member;

[0023] There are at least two operating components, which are respectively located at both ends of the extension direction of the adjusting component.

[0024] In one possible implementation, the slurry degassing device provided in this application embodiment has a scraper extending in a horizontal direction.

[0025] In one possible implementation, the slurry degassing device provided in this application includes a housing comprising:

[0026] The lower box shell has two partitions spaced apart inside, and the two partitions and part of the lower box shell together form a feeding chamber or a discharging chamber.

[0027] The upper casing has a sealing cover on the lower casing, and the upper casing and the lower casing are detachably connected.

[0028] In one possible implementation, the slurry degassing device provided in this application embodiment has a scraping mechanism connected to a partition.

[0029] In one possible implementation, the slurry degassing device provided in this application has an inlet pipe and an outlet pipe connected to the lower shell, with the inlet pipe correspondingly connected to the inlet chamber and the outlet pipe correspondingly connected to the outlet chamber.

[0030] In one possible implementation, the slurry degassing device provided in this application embodiment is equipped with switching valves on both the feed pipe and the discharge pipe.

[0031] In one possible implementation, the slurry degassing device provided in this application embodiment further includes two liquid level detection elements, which are respectively set for the feed chamber and the discharge chamber to detect the liquid level height of the slurry in the feed chamber or the discharge chamber.

[0032] In one possible implementation, the slurry degassing device provided in this application embodiment further includes a vacuum generator, which is connected to the inside of the housing to create a vacuum environment in the feed chamber and the discharge chamber.

[0033] In one possible implementation, the slurry degassing device provided in this application embodiment further includes a frame, with the housing disposed on the frame.

[0034] In one possible implementation, the slurry degassing device provided in this application embodiment further includes a conveying component, which is connected to the discharge chamber and is used to convey the slurry in the discharge chamber to the coating equipment.

[0035] Secondly, embodiments of this application provide a coating apparatus, including a coating apparatus body and any of the above-mentioned slurry degassing devices, wherein the slurry degassing device is connected to the coating apparatus body.

[0036] The slurry degassing device and coating equipment provided in this application include a housing, a rotating roller, and a scraping mechanism. The rotating roller is rotatably disposed in the feed chamber and discharge chamber of the housing, with a portion of the rotating roller located within the feed chamber. The scraping mechanism abuts against the rotating roller. Thus, when the rotating roller rotates, the slurry that has not been degassed in the feed chamber can adhere to the rotating roller at a preset thickness under tension, forming a thin film. As the rotating roller rotates, the air bubbles in the slurry attached to the rotating roller are exposed to a vacuum environment, causing them to burst. With further rotation of the rotating roller, the degassed slurry is scraped off the rotating roller by the scraping mechanism and guided into the discharge chamber for use. Since the slurry degasses as it rotates with the rotating roller, the degassing efficiency is higher than that of slurry degassing due to its own weight flowing downwards. The thickness is uniform, and the slurry is not subjected to high-speed rotation and impact, resulting in more stable properties after degassing and a better degassing effect. Attached Figure Description

[0037] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0038] Figure 1 This is a schematic diagram of the slurry degassing device provided in the embodiments of this application;

[0039] Figure 2 for Figure 1 Schematic diagram of the internal structure of the middle box;

[0040] Figure 3 for Figure 2 A schematic diagram of the scraper assembly.

[0041] Explanation of reference numerals in the attached figures:

[0042] 100 - Box body; 110 - Feeding chamber; 120 - Discharge chamber; 130 - Upper box shell; 140 - Lower box shell; 141 - Partition plate; 150 - Feeding pipe; 151 - Feeding switch valve; 160 - Discharge pipe; 161 - Discharge switch valve;

[0043] 200 - Rotating roller; 210 - Driving component;

[0044] 300 - Scraping mechanism; 310 - First scraping assembly; 311 - Fixing component; 312 - Adjusting component; 313 - Scraping component; 314 - Fastener; 315 - Operating component; 320 - Second scraping assembly;

[0045] 400 - Liquid level detection element;

[0046] 500 - Vacuum Generator;

[0047] 600-rack;

[0048] 700 - Material conveyor.

[0049] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, 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, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the absence of conflict, the following embodiments and features can be combined with each other.

[0051] In the prior art, slurry degassing devices achieve degassing by causing the slurry to flow slowly down the wall under gravity, or by stirring the slurry or throwing the slurry, so that the bubbles in the slurry break down in a vacuum environment.

[0052] However, allowing the slurry to flow slowly down the wall under gravity makes it impossible to control the slurry thickness, and the slow flow rate results in low degassing efficiency. Furthermore, the high rotation speed and large impact during slurry agitation or slinging can easily alter the slurry properties, affecting the degassing quality. Therefore, existing slurry degassing devices have poor degassing performance.

[0053] To overcome the deficiencies in the prior art, the slurry degassing device and coating equipment provided in this application include a housing, a rotating roller, and a scraping mechanism. The rotating roller is rotatably disposed in the feed chamber and discharge chamber of the housing, with a portion of the rotating roller located within the feed chamber. The scraping mechanism abuts against the rotating roller. Thus, when the rotating roller rotates, the slurry that has not been degassed in the feed chamber can adhere to the rotating roller at a preset thickness under tension, forming a thin film. As the rotating roller rotates, the air bubbles in the slurry attached to the rotating roller are exposed to a vacuum environment, causing them to burst. With further rotation of the rotating roller, the degassed slurry is scraped off the rotating roller by the scraping mechanism and guided into the discharge chamber for use. Since the slurry degasses as it rotates with the rotating roller, the degassing efficiency is higher than that of slurry degassing due to its own weight flowing downwards. The thickness is uniform, and the slurry is not subjected to high-speed rotation and impact, resulting in more stable properties after degassing and a better degassing effect.

[0054] The present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the present invention.

[0055] Reference Figures 1 to 3 As shown, this application provides a slurry degassing device, comprising:

[0056] The housing 100 has a connected feed chamber 110 and a discharge chamber 120 inside.

[0057] Rotary roller 200 is rotatably disposed inside the housing 100, and part of the rotary roller 200 is located inside the feed chamber 110. The rotary roller 200 is configured to rotate relative to the housing 100 in a vacuum environment so as to attach the slurry in the feed chamber 110 to itself with a preset thickness and carry it away from the feed chamber 110.

[0058] The scraping mechanism 300 is disposed inside the housing 100 and abuts against the rotating roller 200. The scraping mechanism 300 is configured to scrape the slurry on the rotating roller 200 away from the rotating roller 200 and guide the slurry to the discharge chamber 120.

[0059] It is understandable that the housing 100 is provided with a feed chamber 110 and a discharge chamber 120. The feed chamber 110 is used to store the slurry that has not been degassed, and the discharge chamber 120 is used to store the degassed slurry. The feed chamber 110 and the discharge chamber 120 are connected to each other so that the slurry can flow smoothly between them. The interior of the housing 100 is sealed so that the feed chamber 110 and the discharge chamber 120 can form a vacuum environment, which facilitates efficient degassed slurry under vacuum conditions.

[0060] The rotating roller 200 is rotatably mounted inside the housing 100. A drive unit 210 outside the housing 100 is coaxially connected to the rotating roller 200 to drive its rotation. Part of the rotating roller 200 is also located within the feeding chamber 110. A scraping mechanism 300 is positioned to the side of the rotating roller 200 and abuts against it. This allows the slurry in the feeding chamber 110 to adhere to the rotating roller 200 as it rotates, forming a film of a predetermined thickness on the roller 200 for degassing under vacuum. As the roller rotates, the scraping mechanism 300 scrapes the slurry off the roller 200, allowing it to flow into the discharge chamber 120. The drive unit 210 can be a servo motor or a stepper motor, or a reducer can be added to it; this application does not impose any limitations on this.

[0061] Therefore, the slurry degassing device provided in this application embodiment includes a housing 100, a rotating roller 200, and a scraping mechanism 300. The rotating roller 200 is rotatably disposed in the feed chamber 110 and the discharge chamber 120 within the housing 100, with a portion of the rotating roller 200 located within the feed chamber 110. The scraping mechanism 300 abuts against the rotating roller 200. Thus, when the rotating roller 200 rotates, the slurry that has not been degassed in the feed chamber 110 can adhere to the rotating roller 200 at a preset thickness under tension, forming a thin film. As the rotating roller 200 rotates, the air bubbles in the slurry attached to the rotating roller 200 are exposed to a vacuum environment, causing the air bubbles to burst. As the rotating roller 200 rotates further, the degassed slurry on it will be scraped off the rotating roller 200 by the scraping mechanism 300 and guided into the discharge chamber 120 for use.

[0062] Among them, since the slurry is de-aerated by rotating the 200 roller, the de-aeration efficiency is higher than that of the slurry de-aerated by its own weight flowing downwards. The thickness is uniform, and the slurry has not been subjected to high-speed rotation and flying impact, so the properties of the slurry after de-aeration are relatively stable and the de-aeration effect is better.

[0063] In some embodiments, refer to Figures 1 to 3 As shown, the scraping mechanism 300 includes:

[0064] The first scraping assembly 310 is disposed on one side of the rotating roller 200, and there is a gap between the first scraping assembly 310 and the circumferential surface of the rotating roller 200. The first scraping assembly 310 controls the slurry on the rotating roller 200 to a preset thickness through the gap.

[0065] The second scraping assembly 320 is disposed on the other side of the rotating roller 200 and spaced apart from the first scraping assembly 310. The second scraping assembly 320 abuts against the circumferential surface of the rotating roller 200. The second scraping assembly 320 scrapes the slurry of a preset thickness on the rotating roller 200 away from the rotating roller 200 and guides the slurry to the discharge chamber 120.

[0066] It is understood that the first scraper assembly 310 and the second scraper assembly 320 are spaced apart from the circumferential surface of the rotating roller 200 to facilitate thickness control and scraping of the slurry on the rotating roller 200. Specifically, the first scraper assembly 310 is located on one side of the rotating roller 200 and has a gap between it and the circumferential surface of the rotating roller 200. This gap allows the first scraper assembly 310 to control the rotating roller 200 within a preset thickness, meaning the gap between the first scraper assembly 310 and the rotating roller 200 matches the required preset thickness.

[0067] For example, the first scraping assembly 310 can control the gap of the slurry on the rotating roller 200 to 0.1mm-2mm. The specific thickness can be determined according to the process requirements of slurry degassing, degassing efficiency, etc., and this application does not limit it.

[0068] The second scraping assembly 320 abuts against the circumferential surface of the rotating roller 200, and the second scraping assembly 320 is inclined relative to the rotating roller 200. When the slurry on the rotating roller 200 rotates to the position of the second scraping assembly 320, the second scraping assembly 320 can scrape the slurry away from the rotating roller 200 and guide the slurry into the discharge chamber 120 along the inclined direction of the second scraping assembly 320.

[0069] It should be noted that the lengths of the first scraper assembly 310 and the second scraper assembly 320 are greater than or equal to the length of the rotating roller 200, so that the first scraper assembly 310 and the second scraper assembly 320 can more efficiently control the slurry thickness and scrape off the slurry.

[0070] In some embodiments, refer to Figure 2 As shown, the first scraping assembly 310 and the second scraping assembly 320 are sequentially and spaced apart on opposite sides of the rotating roller 200 along the rotation direction of the rotating roller 200.

[0071] It is understandable that by setting the first scraping assembly 310 and the second scraping assembly 320 to be positioned opposite each other on both sides of the rotating roller 200, the first scraping assembly 310 and the second scraping assembly 320 can be spaced further apart along the circumference of the rotating roller 200. This extends the time it takes for the slurry to reach a preset thickness after passing through the first scraping assembly 310 and be scraped off the rotating roller 200 by the second scraping assembly 320, thus facilitating sufficient degassing of the slurry on the rotating roller 200 and improving the degassing effect.

[0072] It should be noted that the first scraping assembly 310 and the second scraping assembly 320 are spaced apart along the rotation direction of the rotating roller 200, for example, as shown in... Figure 2 As shown, when the rotating roller 200 rotates clockwise, the second scraping assembly 320 and the discharge chamber 120 are located on the right side of the rotating roller 200, and the first scraping assembly 310 is located on the left side of the rotating roller 200. When the rotating roller 200 rotates counterclockwise, the second scraping assembly 320 and the discharge chamber 120 are located on the left side of the rotating roller 200, and the first scraping assembly 310 is located on the right side of the rotating roller 200.

[0073] In specific implementation, refer to Figure 2 and Figure 3 As shown, at least one of the first scraper assembly 310 and the second scraper assembly 320 includes:

[0074] Fastener 311 is connected to housing 100;

[0075] Adjusting component 312 is slidably mounted on fixing component 311;

[0076] The scraper 313 is connected to the side of the adjusting member 312 facing the rotating roller 200 and is located between the fixing member 311 and the adjusting member 312. The length extension direction of the scraper 313 is consistent with the extension direction of the rotation axis of the rotating roller 200.

[0077] The scraper 313 is configured to move relative to the fixed member 311 under the action of the adjusting member 312 to move closer to or further away from the rotating roller 200.

[0078] For example, the scraper 313 is away from the rotating roller 200 and forms a gap with the rotating roller 200 to control the slurry on the rotating roller 200 at a preset thickness, or the scraper 313 is close to the rotating roller 200 and abuts against the rotating roller 200 to scrape the slurry on the rotating roller 200 away from the rotating roller 200.

[0079] The fixing member 311 is connected to the housing 100 to ensure the stable installation of the first scraping assembly 310 and the second scraping assembly 320. The adjusting member 312 is slidably disposed on the fixing member 311, and the scraping member 313 is connected to the stepped groove of the adjusting member 312, with the scraping member 313 located between the adjusting member 312 and the fixing member 311. This allows the adjusting member 312 and the fixing member 311 to stably clamp the scraping member 313 together. Furthermore, by moving the scraping member 313 through the adjusting member 312, the distance between the scraping member 313 and the circumferential surface of the rotating roller 200 can be adjusted so that a gap is formed between the scraping member 313 and the rotating roller 200, or so that the scraping member 313 abuts against the rotating roller 200.

[0080] The length extension direction of the scraper 313 is consistent with the extension direction of the rotation axis of the rotating roller 200, which facilitates the continuous and consistent gap between the scraper 313 and the rotating roller 200, or enables the scraper 313 and the rotating roller 200 to continuously and stably abut against each other.

[0081] The scraper 313 can be a rigid part made of polyethylene plastic, or a rigid part made of other non-metallic materials with good wear resistance, so that the scraper 313 can stably contact the rotating roller 200 while avoiding the scraper 313 damaging the rotating roller 200.

[0082] Furthermore, refer to Figure 2 and Figure 3 As shown, at least one of the first scraper assembly 310 and the second scraper assembly 320 further includes:

[0083] Fastener 314 connects adjusting member 312 and fixing member 311 in sequence to fix adjusting member 312 to fixing member 311;

[0084] The operating element 315 is connected to the adjusting element 312, and the operating element 315 drives the adjusting element 312 to move relative to the fixed element 311.

[0085] This configuration makes it more convenient and reliable for the adjusting member 312 to move and fix the scraper member 313 relative to the fixed member 311. The fastener 314 can be a fastening bolt, and the operating member 315 can be an adjusting screw with a cam structure. The cam engages with a slot on the adjusting member 312. By turning the operating member 315, the cam can move the adjusting member 312 relative to the fixed member 311, thereby adjusting the gap between the scraper member 313 and the rotating roller 200.

[0086] In specific implementation, refer to Figure 3 As shown, multiple fasteners 314 are arranged sequentially at intervals along the extension direction of the adjusting member 312;

[0087] At least two operating elements 315 are provided, and the at least two operating elements 315 are respectively provided at both ends of the extension direction of the adjusting element 312.

[0088] This configuration makes the connection between the adjusting component 312 and the fixing component 311 more stable and reliable. When it is necessary to adjust the relative position of the scraper component 313 and the rotating roller 200, it is only necessary to loosen each fastener 314, then rotate the operating component 315 to adjust the relative position of the adjusting component 312 and the fixing component 311, and then tighten the fastener 314. The operation is convenient and quick, and the reliability is good.

[0089] Furthermore, in some embodiments, the scraper 313 extends in a horizontal direction.

[0090] It is understandable that the extension direction of the scraper 313 is consistent with the extension direction of the rotation axis of the rotating roller 200. Since the scraper 313 extends in the horizontal direction, the rotating roller 200 rotates around the horizontal axis, thereby making the slurry at each position on the rotating roller 200 more stable and the thickness more uniform, effectively ensuring the defoaming effect.

[0091] Furthermore, in some embodiments, reference is made to Figure 1 and Figure 2 As shown, the housing 100 includes:

[0092] The lower box shell 140 has two partitions 141 spaced apart inside. The two partitions 141 and part of the lower box shell 140 together form the feeding chamber 110 or the discharging chamber 120.

[0093] The upper housing 130 has a sealing cover on the lower housing 140, and the upper housing 130 and the lower housing 140 are detachably connected.

[0094] The upper housing 130 and the lower housing 140 are detachably and sealed, which facilitates the maintenance and cleaning of the space inside the housing 100 and effectively ensures the sealing of the feed chamber 110 and the discharge chamber 120 to maintain a vacuum environment. In addition, the upper housing 130 and the lower housing 140 are small in size, which facilitates the assembly and movement of the slurry degassing device.

[0095] Two partitions 141 are provided inside the lower housing 140, forming a feeding chamber 110 between the two partitions 141, while the area outside the two partitions 141 naturally forms a discharging chamber 120, making the structure of the feeding chamber 110 and the discharging chamber 120 relatively simple and compact.

[0096] Furthermore, refer to Figure 2 As shown, the scraping mechanism 300 is connected to the partition plate 141.

[0097] It is understandable that the scraping mechanism 300 is set on the partition plate 141 to ensure the stable installation of the scraping mechanism 300 and to enable the scraping mechanism 300 to cooperate stably with the rotating roller 200 to control the thickness of the slurry and scrape it off.

[0098] Furthermore, in some embodiments, reference is made to Figure 1 and Figure 2 As shown, the lower housing 140 is connected to a feed pipe 150 and a discharge pipe 160. The feed pipe 150 is connected to the feed chamber 110, and the discharge pipe 160 is connected to the discharge chamber 120.

[0099] Both the feed pipe 150 and the discharge pipe 160 are equipped with switching valves.

[0100] By setting up the feed pipe 150 and the discharge pipe 160, the slurry can be smoothly added and extracted even when the upper shell 130 and the lower shell 140 are closed, making the slurry entry and exit more convenient.

[0101] Furthermore, by setting a feed switch valve 151 on the feed pipe 150 and a discharge switch valve 161 on the discharge pipe 160, the automation level of the slurry feeding and discharging control in the box 100 is increased, which makes it easier to ensure the sealing of the feed chamber 110 and the discharge chamber 120.

[0102] In some embodiments, refer to Figure 1 and Figure 2 As shown, the slurry degassing device provided in this application embodiment also includes two liquid level detection elements 400. The two liquid level detection elements 400 are respectively set for the feed chamber 110 and the discharge chamber 120 to detect the liquid level height of the slurry in the feed chamber 110 or the discharge chamber 120.

[0103] It is understandable that by setting two liquid level detection devices 400 to detect the slurry liquid level height in the feed chamber 110 and the discharge chamber 120 respectively, it is convenient to realize the automatic start and stop control of the slurry degassing device. When the slurry liquid level in the feed chamber 110 reaches the preset liquid level, the slurry degassing device can be controlled to start degassing. When the slurry liquid level in the discharge chamber 120 reaches the preset liquid level, the slurry degassing device can be controlled to stop degassing and the degassed slurry can be output.

[0104] In one possible implementation, the slurry degassing device provided in this application further includes a vacuum generator 500, which is connected to the interior of the housing 100 to create a vacuum environment in the feed chamber 110 and the discharge chamber 120. By providing the vacuum generator 500, a stable vacuum environment can be formed inside the housing 100, which facilitates the degassing of the slurry on the rotating roller 200.

[0105] Furthermore, in some embodiments, reference is made to Figure 1 and Figure 2As shown, the slurry degassing device provided in this application embodiment also includes a frame 600, and a housing 100 is disposed on the frame 600.

[0106] With this configuration, the housing 100 and the components connected to the housing 100 can be mounted on the frame 600. The controller, circuitry, and other components of the slurry deaeration device can also be mounted inside the frame 600, making the structure of the slurry deaeration device more compact.

[0107] Furthermore, the slurry degassing device provided in this application embodiment also includes a conveying component 700, which is connected to the discharge chamber 120 and is used to convey the slurry in the discharge chamber 120 to the coating equipment.

[0108] It is understood that the conveying unit 700 can be a screw pump or a diaphragm pump, etc., with the flow rate controlled at 1L / min-2L / min, and this application does not limit this. The conveying unit 700 directly transports the slurry in the discharge chamber 120 to the coating equipment, which facilitates efficient battery coating operations and also prevents the degassed slurry from contacting the outside environment, ensuring the stability of the slurry properties.

[0109] The degassing process of the slurry degassing device provided in the embodiments of this application will be described in detail below.

[0110] Open the feed switch valve 151 to allow the undefoamed slurry to enter the feed chamber 110 from the feed pipe 150 and be temporarily stored in the feed chamber 110. When the liquid level detection element 400 at the feed chamber 110 detects that the liquid level of the slurry in the feed chamber 110 has reached the preset liquid level, the feed switch valve 151 closes and the vacuum generator 500 is started.

[0111] When the vacuum level inside the housing 100 reaches the set vacuum value, the rotating roller 200 begins to move along... Figure 2 Rotate in the direction of the center arrow. During rotation, the slurry is adhered to the circumferential surface of the rotating roller 200 and transferred with the rotating roller 200. The transfer speed of the slurry is controlled by the rotation speed of the rotating roller 200.

[0112] Along the rotation direction of the rotating roller 200, the slurry first passes through the first scraper assembly 310 on the left. The first scraper assembly 310 on the left controls the thickness of the slurry on the rotating roller 200, so that a slurry film of uniform thickness is formed on the rotating roller 200. The air bubbles in the slurry on the rotating roller 200 are exposed to the vacuum environment inside the box 100, and then the air bubbles burst, thus achieving degassing.

[0113] After degassing, the slurry reaches the second scraping assembly 320 on the right side via the rotating roller 200. The second scraping assembly 320 scrapes the slurry off, allowing it to flow into the discharge chamber 120 along the adjusting member 312 and the fixing member 311. As the degassing process continues, the slurry level in the discharge chamber 120 rises continuously. When the level detection member 400 detects that the slurry level in the discharge chamber 120 has reached the preset level, the rotating roller 200 stops rotating, and the vacuum generator 500 breaks the vacuum. When the vacuum level drops to the set value, the discharge switch valve 161 opens, and the conveying member 700 transports the degassed slurry to the die head end of the coating equipment. The conveying time can be set according to the conveying efficiency of the conveying member 700. After conveying is completed, the discharge switch valve 161 closes, and the feed switch valve 151 reopens, starting the next degassing cycle.

[0114] This application also provides a coating device, including a coating device body and a slurry degassing device as described in any of the above embodiments, wherein the slurry degassing device is connected to the coating device body.

[0115] The slurry degassing device has been described in detail in the above embodiments and will not be repeated here.

[0116] The coating equipment provided in this application embodiment includes a slurry degassing device, which comprises a housing 100, a rotating roller 200, and a scraping mechanism 300. The rotating roller 200 is rotatably disposed in the feed chamber 110 and the discharge chamber 120 within the housing 100, with a portion of the rotating roller 200 located within the feed chamber 110. The scraping mechanism 300 abuts against the rotating roller 200.

[0117] Thus, when the rotating roller 200 rotates, the slurry that has not been degassed in the feed chamber 110 can adhere to the rotating roller 200 at a preset thickness under tension, forming a thin film. As the rotating roller 200 rotates, the air bubbles in the slurry attached to the rotating roller 200 are exposed to a vacuum environment, causing the air bubbles to burst. The rotating roller 200 rotates further, and the degassed slurry on it will be scraped off the rotating roller 200 by the scraping mechanism 300 and guided into the discharge chamber 120 for use. In this way, because the slurry degassed as it rotates with the rotating roller 200, the degassed efficiency is higher than that of the slurry degassed by its own weight flowing downwards. The thickness is uniform, and the slurry has not been subjected to high-speed rotation and flying impact, making the properties of the degassed slurry more stable and the degassed effect better.

[0118] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0119] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0120] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0121] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A slurry degassing device, characterized in that, include: The housing (100) has a connected feed chamber (110) and a discharge chamber (120). A rotating roller (200) is rotatably disposed within the housing (100), and a portion of the rotating roller (200) is located within the feed chamber (110). The rotating roller (200) is configured to rotate relative to the housing (100) in a vacuum environment to adhere the slurry in the feed chamber (110) to itself with a preset thickness and carry it away from the feed chamber (110). A scraping mechanism (300) is disposed inside the housing (100) and abuts against the rotating roller (200). The scraping mechanism (300) is configured to scrape the slurry on the rotating roller (200) away from the rotating roller (200) and guide the slurry to the discharge chamber (120).

2. The slurry degassing device according to claim 1, characterized in that, The scraping mechanism (300) includes: A first scraping assembly (310) is disposed on one side of the rotating roller (200), and there is a gap between the first scraping assembly (310) and the circumferential surface of the rotating roller (200). The first scraping assembly (310) controls the slurry on the rotating roller (200) to the preset thickness through the gap. The second scraper assembly (320) is disposed on the other side of the rotating roller (200) and spaced apart from the first scraper assembly (310). The second scraper assembly (320) abuts against the circumferential surface of the rotating roller (200). The second scraper assembly (320) scrapes the slurry of the preset thickness on the rotating roller (200) away from the rotating roller (200) and guides the slurry to the discharge chamber (120).

3. The slurry degassing device according to claim 2, characterized in that, The first scraper assembly (310) and the second scraper assembly (320) are arranged sequentially at intervals on opposite sides of the rotating roller (200) along the rotation direction of the rotating roller (200).

4. The slurry degassing device according to claim 2, characterized in that, At least one of the first scraper assembly (310) and the second scraper assembly (320) includes: Fastener (311) is connected to the housing (100). An adjusting member (312) is slidably disposed on the fixing member (311); A scraper (313) is connected to the side of the adjusting member (312) facing the rotating roller (200) and is located between the fixing member (311) and the adjusting member (312). The length extension direction of the scraper (313) is consistent with the extension direction of the rotation axis of the rotating roller (200). The scraper (313) is configured to move relative to the fixing member (311) under the action of the adjusting member (312) to move closer to or further away from the rotating roller (200).

5. The slurry degassing device according to claim 4, characterized in that, At least one of the first scraper assembly (310) and the second scraper assembly (320) further includes: Fastener (314) is connected in sequence to the adjusting member (312) and the fixing member (311) to fix the adjusting member (312) to the fixing member (311); An operating element (315) is connected to the adjusting element (312), and the operating element (315) drives the adjusting element (312) to move relative to the fixing element (311).

6. The slurry degassing device according to claim 5, characterized in that, Multiple fasteners (314) are arranged sequentially at intervals along the extension direction of the adjusting member (312); At least two operating elements (315) are provided, and the at least two operating elements (315) are respectively provided at both ends of the extension direction of the adjusting element (312).

7. The slurry degassing device according to claim 4, characterized in that, The scraper (313) extends in the horizontal direction.

8. The slurry degassing apparatus according to any one of claims 1-7, characterized in that, The housing (100) includes: The lower housing (140) has two partitions (141) spaced apart inside. The two partitions (141) and part of the lower housing (140) together form the feeding chamber (110) or the discharging chamber (120). The upper housing (130) is sealed on the lower housing (140), and the upper housing (130) and the lower housing (140) are detachably connected.

9. The slurry degassing device according to claim 8, characterized in that, The scraping mechanism (300) is connected to the partition (141).

10. The slurry degassing device according to claim 8, characterized in that, The lower housing (140) is connected to a feed pipe (150) and a discharge pipe (160). The feed pipe (150) is connected to the feed chamber (110), and the discharge pipe (160) is connected to the discharge chamber (120).

11. The slurry degassing device according to claim 10, characterized in that, Both the feed pipe (150) and the discharge pipe (160) are equipped with switching valves.

12. The slurry degassing apparatus according to any one of claims 1-7, characterized in that, It also includes two liquid level detection elements (400), which are respectively set in the feed chamber (110) and the discharge chamber (120) to detect the liquid level height of the slurry in the feed chamber (110) or the discharge chamber (120).

13. The slurry degassing apparatus according to any one of claims 1-7, characterized in that, It also includes a vacuum generator (500) that is connected to the interior of the housing (100) to create a vacuum environment in the feed chamber (110) and the discharge chamber (120).

14. The slurry degassing apparatus according to any one of claims 1-7, characterized in that, It also includes a frame (600), on which the housing (100) is disposed.

15. The slurry degassing apparatus according to any one of claims 1-7, characterized in that, It also includes a conveying component (700) that is connected to the discharge chamber (120) and is used to convey the slurry in the discharge chamber (120) to the coating equipment.

16. A coating apparatus, characterized in that, It includes a coating equipment body and a slurry degassing device as described in any one of claims 1-15, wherein the slurry degassing device is connected to the coating equipment body.

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