Stirring device

Abstract

The utility model provides a stirring device, relates to the technical field of battery production equipment, and aims to solve the problems that the inner wall of a stirring tank needs to be cleaned through a scraping structure, the scraping structure is arranged in a tank body and occupies internal space, and the scraping structure is positioned outside the tank body, so that impurities are easily brought in in the cleaning process and the cleanliness in the tank is influenced to a certain extent. The utility model provides a stirring device. The stirring device comprises a tank body, an air supply mechanism and a stirring mechanism, the tank body comprises an inner-layer tank and an outer-layer tank, the inner-layer tank is arranged in the outer-layer tank, a cavity is formed between the inner-layer tank and the outer-layer tank, the stirring mechanism is located in the stirring cavity of the inner-layer tank, and a first air outlet hole communicating the stirring cavity with the cavity is formed in the wall body of the inner-layer tank; the air supply mechanism comprises an air source, a first air supply component and a second air supply component, the first air supply component is communicated with the cavity, the second air supply component is arranged on the outer wall of the stirring mechanism, the air inlet end of the second air supply component is communicated with the cavity, and a plurality of second air outlet holes are formed in the second air supply component.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production equipment, in particular to a stirring device. Background Art

[0002] The stirring device is a commonly used equipment in the battery manufacturing process. Since the stirring device needs to stir colloidal materials such as adhesives, it needs to be cleaned after the operation is completed.

[0003] Most existing cleaning structures use a scraper structure, which is usually installed inside the tank body and operates independently. When the scraper structure is installed inside the tank body, it will occupy space inside the tank body, and the stirring process of the material will also affect the use of the scraper structure. Although installing the scraper structure outside the tank body can solve the problem of space and material affecting the use of the scraper structure, it is very easy to prevent the external scraper structure from bringing external impurities into the tank body during the cleaning process, thereby affecting the cleanliness of the tank body and affecting the subsequent stirring of the material.

[0004] Therefore, it is urgent to provide a stirring device to solve the problems in the prior art to a certain extent. Utility Model Content

[0005] The purpose of the utility model is to provide a stirring device to solve, to a certain extent, the problem that the inner wall of the stirring tank needs to be cleaned through a scraping structure, and the scraping structure is arranged inside the tank body and occupies the internal space. If it is located outside the tank body, it is easy to bring in impurities during the cleaning process and affect the cleanliness of the tank.

[0006] The utility model provides a stirring device, including a tank body, an air supply mechanism and a stirring mechanism; the tank body includes an inner tank and an outer tank, the inner tank is arranged in the outer tank, and a cavity is formed between the inner tank and the outer tank, the stirring mechanism is located in the stirring chamber of the inner tank, and a first air outlet hole connecting the stirring chamber and the cavity is formed on the wall of the inner tank; the air supply mechanism includes an air source, a first air supply component and a second air supply component, one end of the first air supply component is connected to the air source, and the other end is connected to the cavity, the second air supply component is arranged on the outer wall of the stirring mechanism, and the air inlet end of the second air supply component is connected to the cavity, and the second air supply component is formed with multiple second air outlet holes.

[0007] Wherein, the tank body further comprises a cover plate, which is sealed on the top of the inner tank and the outer tank to seal the stirring chamber and the cavity; the stirring mechanism is arranged through the cover plate and is rotatably connected to the cover plate.

[0008] Specifically, the stirring mechanism includes a driving member and a stirring member. The driving member is located on the side of the cover plate away from the stirring chamber and is connected to the cover plate. One end of the stirring member is connected to the output end of the driving member, and the other end passes through the cover plate into the stirring chamber; the second air supply member is covered on the outside of the stirring member.

[0009] Furthermore, the cover plate is formed with a first air guide cavity, one end of which is connected to the cavity; the second air supply member is arranged on the outside of the stirring member, and a second air guide cavity is formed between the second air supply member and the stirring member, the second air guide cavity is connected to the first air guide cavity, and the second air supply member can rotate relative to the cover plate.

[0010] Furthermore, a vent is formed on the cover plate, one end of the first air supply component is connected to the air source, and the other end is connected to the vent, and the vent is connected to the cavity.

[0011] Wherein, the first air outlet and the second air outlet are both arranged to be tilted downward so that the gas is blown out toward the bottom of the inner tank.

[0012] Specifically, the diameters of the first air outlet and the second air outlet are 1 mm to 4 mm.

[0013] Furthermore, the first air outlet covers 50%-65% of the area of ​​the wall of the inner tank; the second air outlet covers 50%-65% of the area of ​​the second air supply component.

[0014] Furthermore, the first air outlet holes and the second air outlet holes are arranged in a form of gradually increasing distribution density from top to bottom.

[0015] Furthermore, a liquid accumulation groove is provided at the bottom of the outer tank; an air outlet is also formed on the outer tank, and a one-way valve is provided in the air outlet.

[0016] Compared with the prior art, the stirring device provided by the present invention has the following advantages:

[0017] The stirring device provided by the present invention includes a tank body, an air supply mechanism and a stirring mechanism; the tank body includes an inner tank and an outer tank, the inner tank is arranged in the outer tank, and a cavity is formed between the inner tank and the outer tank, the stirring mechanism is located in the stirring cavity of the inner tank, and a first air outlet hole connecting the stirring cavity and the cavity is formed on the wall of the inner tank; the air supply mechanism includes an air source, a first air supply component and a second air supply component, the first air supply component is connected to the cavity, the second air supply component is arranged on the outer wall of the stirring mechanism, and the air inlet end of the second air supply component is connected to the cavity, and the second air supply component is formed with multiple second air outlet holes.

[0018] From this analysis, it can be seen that the spaced-apart inner and outer tanks form a cavity, and by connecting the ends of the first air supply member to the air source and the cavity, respectively, air can be introduced into the cavity through the first air supply member. It can be understood that because the inner wall of the inner tank in this application is formed with a first air outlet that communicates with the stirring chamber, gas entering the cavity can be blown out through the first air outlet. Therefore, during the cleaning phase, the blown air can blow the colloidal material adhering to the inner wall of the inner tank away from the inner wall surface.

[0019] Accordingly, the air inlet end of the second air supply member in the present application is connected to the cavity, so that when air is admitted to the cavity, a portion of the gas in the cavity enters the second air supply member, thereby allowing the gas to be blown out through the multiple second air outlet holes formed by the second air supply member. Since the second air supply member in the present application is disposed outside the stirring mechanism, when air is blown through the second air outlet holes, the rubber material on the outer wall of the stirring mechanism can be blown off. Therefore, the stirring device provided by the present application does not need to adopt a complex scraping structure during the cleaning stage, which not only saves the number of equipment used but also reduces cleaning costs.

[0020] Moreover, when the stirring device provided in the present application needs to be cleaned, the air source enters the cavity through the first air supply component and enters the second air supply component at the same time. During this process, it will not come into contact with the external environment, thereby reducing to a certain extent the problem of using a traditional scraper device that requires opening the tank body, causing external impurities to enter the tank and affect the cleanliness of the tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the overall structure of the stirring device provided in an embodiment of the present utility model;

[0023] Figure 2 A schematic structural diagram of a second air supply component in a stirring device provided in an embodiment of the present utility model;

[0024] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0025] In the figure: 1-outer tank; 101-cavity; 102-liquid storage tank; 103-air outlet; 2-inner tank; 201-stirring chamber; 202-first air outlet; 3-stirring member; 4-driving member; 5-first air supply member; 6-second air supply member; 601-second air outlet; 602-second air guide chamber; 7-cover plate; 701-first air guide chamber; 702-air vent; 8-air source. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0027] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0028] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0029] In the description of the embodiments of the present application, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0030] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0031] For ease of description, spatially relative terms such as "above," "upper," "below," and "lower" may be used herein to describe the relationship of one element to another element as illustrated in the drawings. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings.

[0032] The terms used herein are intended only to describe various examples and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular is intended to include the plural. The terms "comprise," "include," and "have" list the presence of stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0033] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include changes in shapes that occur during manufacturing.

[0034] The features of the examples described herein may be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various configurations, other configurations are possible, as will be apparent upon understanding the disclosure of this application. In addition, the technical solutions between the various embodiments may be combined with each other, but this must be based on the ability of a person of ordinary skill in the art to implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0035] like Figure 1-Figure 3As shown, the utility model provides a stirring device, including a tank body, an air supply mechanism and a stirring mechanism; the tank body includes an inner tank 2 and an outer tank 1, the inner tank 2 is arranged in the outer tank 1, and a cavity 101 is formed between the inner tank 2 and the outer tank 1, the stirring mechanism is located in the stirring chamber 201 of the inner tank 2, and a first air outlet 202 connecting the stirring chamber 201 and the cavity 101 is formed on the wall of the inner tank 2; the air supply mechanism includes an air source 8, a first air supply component 5 and a second air supply component 6, one end of the first air supply component 5 is connected to the air source 8, and the other end is connected to the cavity 101, the second air supply component 6 is arranged on the outer wall of the stirring mechanism, and the air inlet end of the second air supply component 6 is connected to the cavity 101, and the second air supply component 6 is formed with a plurality of second air outlets 601.

[0036] Compared with the prior art, the stirring device provided by the present invention has the following advantages:

[0037] The stirring device provided by the present invention forms a cavity 101 by means of the spaced-apart inner tank 2 and outer tank 1. By connecting the ends of the first air supply member 5 to the air source 8 and the cavity 101, respectively, air can be supplied into the cavity 101 through the first air supply member 5. It will be appreciated that, because the inner wall of the inner tank 2 in the present application is formed with a first air outlet 202 that communicates with the stirring cavity 201, gas entering the cavity 101 can be blown out through the first air outlet 202. Thus, during the cleaning phase, the blown-out air can blow colloidal material adhering to the inner wall of the inner tank 2 away from the inner wall.

[0038] Accordingly, the air inlet end of the second air supply member 6 in the present application is connected to the cavity 101. Therefore, when air is admitted to the cavity 101, a portion of the air in the cavity 101 enters the second air supply member 6, thereby allowing the air to be blown out through the multiple second air outlet holes 601 formed in the second air supply member 6. Since the second air supply member 6 in the present application is disposed outside the stirring mechanism, when air is blown through the second air outlet holes 601, the rubber material on the outer wall of the stirring mechanism can be blown off. Therefore, the stirring device provided by the present application does not need to adopt a complex scraping structure during the cleaning stage, which not only saves the number of equipment used but also reduces cleaning costs.

[0039] Moreover, when the stirring device provided in the present application needs to be cleaned, the air source 8 enters the cavity 101 through the first air supply component 5 and enters the second air supply component 6 at the same time. During this process, it will not come into contact with the external environment, thereby reducing to a certain extent the need to open the tank body when using a traditional scraper device, causing external impurities to enter the tank and affect the cleanliness of the tank body.

[0040] It should be noted here that the first air supply member 5 in the present application can directly adopt an air duct connected to the air source 8, and accordingly, the second air supply member 6 can also adopt an air duct. Since a cavity 101 is formed between the inner tank 2 and the outer tank 1 in the present application, the second air supply member 6 can be arranged in the cavity 101 and enter the stirring chamber 201 at the position corresponding to the stirring mechanism. The second air supply member 6 in the present application can be a plurality of air ducts, which extend in the vertical direction and are attached to the outer wall of the stirring mechanism, and the plurality of air ducts are arranged at intervals along the circumference of the stirring mechanism, so that when the second air outlet 601 blows air, the rubber material adhered to the outer wall of the air duct itself and the outer wall of the stirring mechanism can be blown off at the same time.

[0041] It should be further explained here that the above-mentioned second air supply component 6 is arranged on the outer wall of the stirring mechanism in this application, which means that it can completely cover the stirring mechanism or partially cover it. When partially covering, it is sufficient to ensure that the air inlet end of the second air supply component 6 is connected to the cavity 101.

[0042] It can be understood that in the present application, the air inlet end of the second air supply component 6 is connected with the cavity 101, which can be understood as the air inlet end of the second air supply component 6 is located in the cavity 101 and is arranged close to the air outlet end of the first air outlet component. Since the volume of the cavity 101 is larger, air is easier to enter. If the second air supply component 6 adopts an air supply pipe, its diameter is limited. Therefore, the air outlet end of the first air supply component 5 can be arranged to correspond to the air inlet end of the second air supply component 6 and spaced apart. Since the air outlet end of the first air supply component 5 blows air to the air inlet end of the second air supply component 6, the gas flow rate at the air inlet end position of the second air supply component 6 can be accelerated, so that part of the air can enter the second air supply component 6, and at the same time, part of the air can also enter the cavity 101, realizing the joint blowing operation of the first air supply component 5 and the second air supply component 6.

[0043] Preferably, the air source 8 in the present application is an air compressor, which can provide a high-pressure air source 8, so that the air flow rate blown into the cavity 101 through the first air supply component 5 is faster, thereby achieving the purpose of supplying air to the cavity 101 and the second air supply component 6.

[0044] Alternatively, as Figure 1 As shown, the tank body in the present application also includes a cover plate 7, which is sealed on the top of the inner tank 2 and the outer tank 1 to seal the stirring chamber 201 and the cavity 101; the stirring mechanism is arranged through the cover plate 7 and is rotatably connected to the cover plate 7.

[0045] By setting the cover plate 7, the stirring chamber 201 and the cavity 101 in the tank body can be isolated from the outside world, ensuring the sealing degree during the stirring process. At the same time, it can also ensure the sealing degree during the cleaning process, preventing external dust or impurities from entering the tank body and affecting the stirring quality and cleaning quality.

[0046] Alternatively, as Figure 1-Figure 3 As shown, the stirring mechanism in the present application includes a driving member 4 and a stirring member 3. The driving member 4 is located on the side of the cover plate 7 away from the stirring chamber 201 and is connected to the cover plate 7. One end of the stirring member 3 is connected to the output end of the driving member 4, and the other end passes through the cover plate 7 into the stirring chamber 201; the second air supply member 6 is covered on the outside of the stirring member 3.

[0047] The driving component 4 in the present application is a motor, and the stirring component 3 can be a structure such as a stirring paddle. By connecting one end of the stirring paddle to the driving component 4, the stirring paddle can be rotated, thereby achieving the stirring operation.

[0048] In the present application, the stirring member 3 and the cover plate 7 can achieve relative rotation through structures such as a sealing ring, while ensuring sealing performance to a certain extent.

[0049] Alternatively, as Figure 1 As shown, the cover plate 7 in the present application is formed with a first air guide cavity 701, one end of which is connected to the cavity 101; the second air supply member 6 is arranged on the outside of the stirring member 3, and a second air guide cavity 602 is formed between the stirring member 3, the second air guide cavity 602 is connected to the first air guide cavity 701, and the second air supply member 6 can rotate relative to the cover plate 7.

[0050] Since the stirring member 3 needs to rotate during operation, and the above method requires the stirring member 3 to rotate forward and reverse continuously when the stirring member 3 rotates to avoid entanglement of the part connected to the second air supply member 6 and the first air supply member 5, the stirring control of the stirring member 3 is relatively complicated.

[0051] In this manner, the first air-guiding cavity 701 formed by the cover plate 7 can be connected to the cavity 101. When air enters the cavity 101, the air can simultaneously enter the first air-guiding cavity 701. Furthermore, the present application arranges the second air-supply member 6 on the outside of the stirring member 3, thereby forming a second air-guiding cavity 602 in conjunction with the stirring member 3.

[0052] In this embodiment, the second air supply member 6 is a hollow structure, whose shape matches that of the stirring member 3 , is sleeved outside the stirring member 3 , and is connected to the stirring member 3 , so that it can rotate synchronously with the stirring member 3 .

[0053] It is understandable that the connection between the second gas supply member 6 and the stirring member 3 in the present application can be achieved by spaced welding at a local position, which can achieve the connection between the second gas supply member 6 and the stirring member 3 and ensure the flow of gas.

[0054] Accordingly, since in this embodiment, the second air guide cavity 602 formed by the second air supply member 6 and the stirring member 3 needs to be connected to the first air guide cavity 701, the air inlet end of the second air supply member 6 is connected to the cover plate 7 and can be rotated relative to the cover plate 7 through clearance fit.

[0055] Furthermore, if Figure 1 As shown, a vent 702 is formed on the cover plate 7 in the present application, one end of the first air supply component 5 is connected to the air source 8, and the other end is connected to the vent 702, and the vent 702 is connected to the cavity 101.

[0056] In this embodiment, the first air supply component 5 includes two sections of air guide pipes, the first section is located outside the tank body, and the two ends are respectively connected to the air source 8 and the air vent 702, and the second section of the air guide pipe is located in the cavity 101 and extends in the vertical direction. Correspondingly, the air inlet end of the second air supply component 6 mentioned in the present application is connected to the second section of the air guide pipe, so that when air is taken into the second section of the air guide pipe, the gas can enter the second air supply component 6, and at the same time flow to the bottom of the cavity 101 in the vertical direction, and enter the cavity 101 from the air outlet end.

[0057] It is necessary to add that, if Figure 1 Combine Figure 2 As shown, there are two air vents 702 in the present application. Therefore, any one of the air vents 702 can be connected according to the setting position of the air source 8, or the air source 8 can be connected to the two air vents 702 using the two first sections of the air guide tubes, thereby achieving synchronous air supply.

[0058] Preferably, if Figure 1 Combine Figure 2 As shown, the first air outlet 202 and the second air outlet 601 in the present application are both arranged to be tilted downward so that the gas is blown out to the bottom of the inner tank 2.

[0059] By tilting the first air outlet 202 and the second air outlet 601 downward, the gas can be blown toward the bottom of the inner tank 2. Moreover, since the multiple first air outlets 202 and the second air outlet 601 in the present application are arranged at intervals in the vertical direction, the first air outlet 202 and the second air outlet 601 located above can blow the rubber material blown away from the wall through the first air outlet 202 and the second air outlet 601 below to the bottom, thereby preventing the rubber material from splashing and adhering to other locations.

[0060] Further preferably, the apertures of the first air outlet 202 and the second air outlet 601 in the present application are 1 mm to 4 mm.

[0061] Accordingly, the first air outlet 202 in the present application covers 50%-65% of the area of ​​the wall of the inner tank 2; the second air outlet 601 covers 650%-65% of the area of ​​the second air supply member, thereby ensuring the overall structural strength while ensuring the blowing and cleaning effect.

[0062] It is understandable that since the amount of rubber is less at higher positions within the tank, the present application arranges the first and second air outlet holes 202 and 601 in a manner that increases their density from top to bottom. This allows for a greater amount of air to be discharged near the bottom, ensuring the removal of the rubber, evenly distributing air resources, and ensuring a cleaning effect. In the present application, "from top to bottom" refers to a gradual increase in density from the top to the bottom of the tank.

[0063] Alternatively, as Figure 1 As shown, a liquid accumulation tank 102 is provided at the bottom of the outer tank 1 in the present application; an air outlet 103 is also formed on the outer tank 1, and a one-way valve is provided in the air outlet 103.

[0064] Through the gas outlet 103 formed on the outer tank 1, when there is too much gas in the cavity 101 and the pressure is too high, the gas can be discharged by opening the one-way valve to ensure internal pressure balance. The use of the one-way valve can, to a certain extent, prevent external gas from entering the cavity 101 and affecting the cleanliness of the internal gas.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A stirring device, characterized in that: It includes a tank body, an air supply mechanism and a stirring mechanism; The tank body comprises an inner tank (2) and an outer tank (1); the inner tank (2) is arranged in the outer tank (1), and a cavity (101) is formed between the inner tank (2) and the outer tank (1); the stirring mechanism is located in the stirring cavity (201) of the inner tank (2); and a first air outlet (202) is formed on the wall of the inner tank (2) to communicate between the stirring cavity (201) and the cavity (101); The air supply mechanism comprises an air source (8), a first air supply component (5) and a second air supply component (6), one end of the first air supply component (5) is connected to the air source (8), and the other end is connected to the cavity (101), the second air supply component (6) is arranged on the outer wall of the stirring mechanism, and the air inlet end of the second air supply component (6) is connected to the cavity (101), and the second air supply component (6) is formed with a plurality of second air outlet holes (601).

2. The stirring device according to claim 1, characterized in that The tank body further comprises a cover plate (7), the cover plate (7) being sealed on the top of the inner tank (2) and the outer tank (1), and sealing the stirring chamber (201) and the cavity (101); The stirring mechanism is arranged through the cover plate (7) and is rotatably connected to the cover plate (7).

3. The stirring device according to claim 2, characterized in that The stirring mechanism comprises a driving member (4) and a stirring member (3); the driving member (4) is located on a side of the cover plate (7) facing away from the stirring chamber (201) and is connected to the cover plate (7); one end of the stirring member (3) is connected to the output end of the driving member (4), and the other end passes through the cover plate (7) and enters the stirring chamber (201); The second air supply member (6) is coated on the outside of the stirring member (3).

4. The stirring device according to claim 3, characterized in that The cover plate (7) is formed with a first air guide cavity (701), and one end of the first air guide cavity (701) is connected to the cavity (101); The second air supply member (6) is sleeved on the outside of the stirring member (3) and forms a second air guide cavity (602) between the second air supply member (6) and the stirring member (3); the second air guide cavity (602) is connected to the first air guide cavity (701), and the second air supply member (6) is rotatable relative to the cover plate (7).

5. The stirring device according to claim 2, characterized in that A vent (702) is formed on the cover plate (7), one end of the first air supply component (5) is connected to the air source (8), and the other end is connected to the vent (702), and the vent (702) is connected to the cavity (101).

6. The stirring device according to claim 1, characterized in that The first air outlet (202) and the second air outlet (601) are both arranged to be tilted downward so that the gas is blown toward the bottom of the inner tank (2).

7. The stirring device according to claim 1, characterized in that The apertures of the first air outlet (202) and the second air outlet (601) are 1 mm to 4 mm.

8. The stirring device according to claim 1, characterized in that The first air outlet (202) covers 50%-65% of the area of ​​the wall of the inner tank (2); The second air outlet (601) covers 50%-65% of the area of ​​the second air supply member (6).

9. The stirring device according to claim 1, characterized in that The first air outlet holes (202) and the second air outlet holes (601) are arranged in a manner such that the distribution density gradually increases from top to bottom.

10. The stirring device according to claim 1, characterized in that A liquid accumulation tank (102) is provided at the bottom of the outer tank (1); An air outlet (103) is also formed on the outer tank (1), and a one-way valve is provided in the air outlet (103).

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